Dr. Sujay V Kumar

Dr. Sujay V Kumar

  • RSCH AST, EARTH SCIENCES REMOTE SENS
  • 301.286.8663
  • NASA/GSFC
  • Mail Code: 617
  • Greenbelt , MD 20771
  • Employer: NASA
  • Education

     Ph.D., Computer Aided Engineering, 2002, North Carolina State University
    Dissertation: “Vitri- A Generic Framework for Engineering Decision Support Systems on Heterogeneous Computer Networks”
    Advisor: Dr. John Baugh, Jr.

    M.S., Civil Engineering , 1998, North Carolina State University

    B.Tech., Civil Engineering, 1996, Indian Institute of Technology, Bombay, India

    Positions/Employment

    12/2015 - Present

    Research Physical Scientist

    NASA Goddard Space Flight Center, Greenbelt, MD

    Conduct research on Earth science remote sensing measurement and modeling to understand their impact on land-atmosphere interactions and relationships with human activities through the analysis of data from space, in-situ and airborne instruments. Serve as the technical lead for transitioning the award-winning Land Information System (LIS; http://lis.gsfc.nasa.gov) for research and applications with partners at the Air Force Weather Agency, NOAA/NCEP, USACE, USDA, NRL,NWS/OHD, NCAR, NOHRSC and USGS/FEWSNET. The targeted use of LIS span socially relevant applications such as water resources and agricultural management, drought and flood monitoring, famine early warning and prediction and weather and climate prediction.

    9/2008 - 12/2015

    Senior Scientist

    Science Applications International Corporation, Greenbelt, MD

     Serve as the technical lead for transitioning the award-winning Land Information System (LIS; http://lis.gsfc.nasa.gov) for research and applications with partners at the Air Force Weather Agency, NOAA/NCEP, USACE, USDA, NRL,NWS/OHD, NOHRSC and USGS/FEWSNET. Science-PI of the NASA funded Advanced Information Systems Technology (AIST) research project. Technical lead for the Land surface Verification Toolkit (LVT), a comprehensive environment for model verification and analysis. Research on measurement and modeling of land-atmosphere interactions, with emphasis on data assimilation and application of advanced high performance computational technologies for offline and coupled land surface modeling. Demonstrate the incorporation of remote sensing data from SMAP, AMSR-E, GOES, MODIS, LANDSAT, AVHRR, GRACE, GPM, TRMM satellites for hydrological applications.

    3/2002 - 8/2008

    Assistant Research Scientist

    Goddard Earth Science Technology Center, Greenbelt, MD Technical lead for the development of the NASA Land Information System (LIS) for fine scale land surface modeling and data assimilation. Successfully led the transition of LIS to operations at the Air Force Weather Agency, NOAA/NCEP and NOHRSC. Served as the technical lead for NASA Earth Science Technology Office (ESTO) funded projects to develop coupled land atmosphere modeling system involving LIS and the Weather Research and Forecasting (WRF) model, using interoperable technologies such as the Earth System Modeling Framework (ESMF). Led the development of computational capabilities in LIS including data assimilation, optimization and uncertainty estimation algorithms.
    8/1996 - 1/2002

    Research Assistant

    Department of Civil Engineering, North Carolina State University, Raleigh, NC Research on the development of high performance computing and communication systems in cooperation with the microelectronics center of North Carolina. System administrator for the distributed computing laboratory in the department of civil engineering, North Carolina State University.

    Research Interests

    Research Interests

     Surface Hydrology, Land Surface Modeling, Data Assimilation, Remote sensing, High performance computing, Biosphere-Atmosphere Interactions, Climate Variability & Climate Changes; Earth system modeling, Parallel/Distributed Computing, Mathematical Modeling, Decision Support Systems and Heuristic Optimization techniques

    Professional Societies

    American Geophysical Union , 2002 - Present
    American Meteorological Society, 2002 - Present

    Professional Service

    • Member of AMS Hydrology committee 2016-present
    • Affiliate faculty, Department of Atmospheric, Oceanic, and Earth Sciences, George Mason University, 2022. 
    • Overall Program Chair for the AMS Hydrology conference at the AMS annual meeting for 2021. 
    • Co-Program Chair for the AMS Hydrology conference at the AMS annual meeting in years 2019 and 2020. 
    • Vice-Chair of the Advisory Committee on Water Information (ACWI) Subcommittee on Hydrology 2015 - 2020. 
    • Member of AGU remote sensing committee 2015 – present.
    • Associate Editor, Geophysical Research Letters, 2022-present. 
    • Associate Editor, Journal of Hydrometeorology, 2014- present. 
    • Editor of special issue in Remote Sensing, Frontiers in Earth Science
    • Member of the Global Land/Atmosphere System Study (GLASS) panel of the WCRP Global Energy and Water Exchanges (GEWEX) Project, 2014-2020.
    • Panel member of the Science Advisory Committee (SAC) for the NASA Short-term Prediction Research and Transition Center, 2014, 2018
    • Chair of the “Benchmarking, identification, and verification in land surface modeling and data assimilation” session at the 26-30th conference in Hydrology, annual AMS meetings.  
    • Chair of the “Advances in Land surface modeling and data assimilation systems” session at the AGU spring 2008 meeting, Fort Lauderdale, FL. 
    • Reviewer for the Journal of Hydrometeorology, Journal of Geophysical Research, Advances in Water Resources, Water Resources Research, Environmental Modeling and Software, Journal of Hydrology, Global change biology, Hydrological Sciences, Remote Sensing of Environment and Tellus. 
    • Volunteer for the Soil Moisture Active Passive Validation experiment 2008 (SMAPVEX08)
    • Undergraduate student mentor for NASA summer interns in years 2009, 2010, 2016, 2017, 2020, 2022

    Awards

    • NASA Special Act Award for supporting NASA’s efforts at the Commodity Classic that brought important visibility to the Hydrological Sciences Lab, 2022
    • NASA Outstanding Leadership Medal, 2021
    • AMS Scientific and Technical Activities Commission (STAC) award, 2021
    • NASA Special Act Award for innovative, rapid demonstration of open and integrative science in the Earth Information System Pilot studies, 2021
    • NASA Special Act Award for exceptional scientific research and leadership of the Land Information System team, 2020. 
    • Agency Exceptional Technology Achievement Medal, 2018
    • Hydrosphere, Biosphere and Geophysics Peer Award for Scientific/Technical support, 2018
    • Scientific achievement award, Hydrospheric and Biospheric Laboratory, NASA Goddard Space Flight Center, 2014
    • SAIC Technical Fellows Council award for outstanding journal publication, 2013.
    • Outstanding technical support award, Hydrospheric and Biospheric Laboratory, NASA Goddard Space Flight Center, 2012.
    • Recipient of the NASA Software of the Year award. 2005
    • Outstanding Researcher award, Hydrospheric and Biospheric laboratory, NASA Goddard Space Flight Center, 2005.
    • NASA/GSFC Space Act awards, 2003, 2004, 2005.
    • Institute Silver Medal for the best graduating student in the Department of Civil Engineering, Indian Institute of Technology, Bombay, 1996.
    • Attained admission to IITs by placing among the top 1% in a nationwide examination, 1992.
    • Gold medals from the board of education, India for excellence in secondary and higher secondary schools, 1990 and 1992.

    Publications

    Refereed

    McNally, A., J. Jacob, K. Arsenault, et al. K. Slinski, D. P. Sarmiento, A. Hoell, S. Pervez, J. Rowland, M. Budde, S. Kumar, C. Peters-Lidard, and J. P. Verdin. 2022. "A Central Asia hydrologic monitoring dataset for food and water security applications in Afghanistan." Earth System Science Data, 14 (7): 3115-3135 [10.5194/essd-14-3115-2022]

    Yoon, Y., E. M. Kemp, S. V. Kumar, et al. J. W. Wegiel, C. M. Vuyovich, and C. Peters-Lidard. 2022. "Development of a global operational snow analysis: The US Air Force Snow and Ice Analysis." Remote Sensing of Environment, 278: 113080 [10.1016/j.rse.2022.113080]

    Nie, W., S. V. Kumar, K. R. Arsenault, et al. C. D. Peters-Lidard, I. E. Mladenova, K. Bergaoui, A. Hazra, B. F. Zaitchik, S. P. Mahanama, R. McDonnell, D. M. Mocko, and M. Navari. 2022. "Towards effective drought monitoring in the Middle East and North Africa (MENA) region: implications from assimilating leaf area index and soil moisture into the Noah-MP land surface model for Morocco." Hydrology and Earth System Sciences, 26 (9): 2365-2386 [10.5194/hess-26-2365-2022]

    Nie, W., S. V. Kumar, K. R. Arsenault, et al. C. D. Peters-Lidard, I. E. Mladenova, K. Bergaoui, A. Hazra, B. F. Zaitchik, S. P. Mahanama, R. McDonnell, D. M. Mocko, and M. Navari. 2022. "Towards Effective Drought Monitoring in the Middle East and North Africa (MENA) Region: Implications from Assimilating Leaf Area Index and Soil Moisture into the Noah-MP Land Surface Model for Morocco." Hydrology and Earth System Sciences, 26: 2365-2386 [10.5194/hess-2021-263]

    Ahmad, J. A., B. A. Forman, and S. V. Kumar. 2022. "Soil moisture estimation in South Asia via assimilation of SMAP retrievals." Hydrology and Earth System Sciences, 26 (8): 2221-2243 [10.5194/hess-26-2221-2022]

    Xue, Y., P. R. Houser, V. Maggioni, et al. Y. Mei, S. V. Kumar, and Y. Yoon. 2022. "Evaluation of High Mountain Asia‐Land Data Assimilation System (Version 1) From 2003 to 2016: 2. The Impact of Assimilating Satellite‐Based Snow Cover and Freeze/Thaw Observations Into a Land Surface Model." Journal of Geophysical Research: Atmospheres, 127 (7): [10.1029/2021jd035992]

    Lahmers, T. M., S. V. Kumar, D. Rosen, et al. A. Dugger, D. J. Gochis, J. A. Santanello, C. Gangodagamage, and R. Dunlap. 2022. "Assimilation of NASA's Airborne Snow Observatory Snow Measurements for Improved Hydrological Modeling: A Case Study Enabled by the Coupled LIS/WRF‐Hydro System." Water Resources Research, 58 (3): e2021WR029867 [10.1029/2021wr029867]

    Maina, F. Z., S. V. Kumar, C. Albergel, and S. P. Mahanama. 2022. "Warming, increase in precipitation, and irrigation enhance greening in High Mountain Asia." Communications Earth & Environment, 3 (1): 43 [10.1038/s43247-022-00374-0]

    Kumar, S., A. Getirana, R. Libonati, et al. C. Hain, S. Mahanama, and N. Andela. 2022. "Changes in land use enhance the sensitivity of tropical ecosystems to fire-climate extremes." Scientific Reports, 12 (1): 964 [10.1038/s41598-022-05130-0]

    Wrzesien, M., S. V. Kumar, C. M. Vuyovich, and R. Kim. 2022. "Development of a “nature run” for observing system simulation experiments (OSSEs) for snow mission development." Journal of Hydrometeorology, [10.1175/jhm-d-21-0071.1]

    Park, J., B. A. Forman, and S. V. Kumar. 2021. "Estimation of Snow Mass Information via Assimilation of C-Band Synthetic Aperture Radar Backscatter Observations Into an Advanced Land Surface Model." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 15: 862-875 [10.1109/jstars.2021.3133513]

    Konapala, G., S. V. Kumar, and S. Khalique Ahmad. 2021. "Exploring Sentinel-1 and Sentinel-2 diversity for flood inundation mapping using deep learning." ISPRS Journal of Photogrammetry and Remote Sensing, 180: 163-173 [10.1016/j.isprsjprs.2021.08.016]

    Yatheendradas, S., and S. Kumar. 2021. "A novel Machine Learning-based gap-filling of fine-resolution remotely sensed snow cover fraction data by combining downscaling and regression." Journal of Hydrometeorology, [10.1175/jhm-d-20-0111.1]

    Kwon, Y., Y. Yoon, B. A. Forman, S. V. Kumar, and L. Wang. 2021. "Quantifying the observational requirements of a space-borne LiDAR snow mission." Journal of Hydrology, 601: 126709 [10.1016/j.jhydrol.2021.126709]

    Lawston-Parker, P., J. A. Santanello, and S. V. Kumar. 2021. "Understanding the Impacts of Land Surface and PBL Observations on the Terrestrial and Atmospheric Legs of Land–Atmosphere Coupling." Journal of Hydrometeorology, 22 (9): 2241-2258 [10.1175/jhm-d-20-0263.1]

    Zamora, R. A., B. F. Zaitchik, M. Rodell, et al. A. Getirana, S. Kumar, K. Arsenault, and E. Gutmann. 2021. "Contribution of Meteorological Downscaling to Skill and Precision of Seasonal Drought Forecasts." Journal of Hydrometeorology, [10.1175/jhm-d-20-0259.1]

    Getirana, A., S. Kumar, G. Konapala, and C. E. Ndehedehe. 2021. "Impacts of fully coupling land surface and flood models on the simulation of large wetland’s water dynamics: the case of the Inner Niger Delta." Journal of Advances in Modeling Earth Systems, 13 (5): [10.1029/2021ms002463]

    Mocko, D. M., S. V. Kumar, C. D. Peters-Lidard, and S. Wang. 2021. "Assimilation of vegetation conditions improves the representation of drought over agricultural areas." J. Hydrometeor., 22 (5): 1085-1098 [10.1175/jhm-d-20-0065.1]

    Erlingis, J. M., M. Rodell, C. D. Peters‐Lidard, et al. B. Li, S. V. Kumar, J. S. Famiglietti, S. L. Granger, J. V. Hurley, P. Liu, and D. M. Mocko. 2021. "A High‐Resolution Land Data Assimilation System Optimized for the Western United States." JAWRA Journal of the American Water Resources Association, 1-19 [10.1111/1752-1688.12910]

    Abbaszadeh, P., H. Moradkhani, K. Gavahi, et al. S. Kumar, C. Hain, X. Zhan, Q. Duan, C. Peters-Lidard, and M. Karimiziarani. 2021. "High-Resolution SMAP Satellite Soil Moisture Product: Exploring the Opportunities." Bulletin of the American Meteorological Society, 1-15 (In Press) [10.1175/bams-d-21-0016.1]

    Kim, R., S. Kumar, C. Vuyovich, et al. P. Houser, J. Lundquist, L. Mudryk, M. Durand, A. Barros, E. J. Kim, B. A. Forman, E. D. Gutmann, M. L. Wrzesien, C. Garnaud, M. Sandells, H.-P. Marshall, N. Cristea, J. M. Pflug, J. Johnston, Y. Cao, D. Mocko, and S. Wang. 2021. "Snow Ensemble Uncertainty Project (SEUP): quantification of snow water equivalent uncertainty across North America via ensemble land surface modeling." The Cryosphere, 15 (2): 771-791 [10.5194/tc-15-771-2021]

    Li, B., M. Rodell, C. Peters-Lidard, et al. J. Erlingis, S. Kumar, and D. Mocko. 2021. "Groundwater recharge estimated by land surface models: an evaluation in the conterminous U.S." Journal of Hydrometeorology, [https://doi.org/10.1175/JHM-D-20-0130.1]

    Kumar, S. V., T. Holmes, N. Andela, et al. I. Dharssi, Vinodkumar, C. Hain, C. Peters‐Lidard, S. P. Mahanama, K. R. Arsenault, W. Nie, and A. Getirana. 2020. "The 2019‐2020 Australian drought and bushfires altered the partitioning of hydrological fluxes." Geophysical Research Letters, 48 (1): [10.1029/2020gl091411]

    Nie, W., B. F. Zaitchik, M. Rodell, et al. S. V. Kumar, K. R. Arsenault, and H. S. Badr. 2020. "Irrigation water demand sensitivity to climate variability across the Contiguous United States." Water Resources Research, 57 (3): (In Press) [10.1029/2020wr027738]

    Rahman, A., X. Zhang, Y. Xue, et al. P. Houser, T. Sauer, S. Kumar, D. Mocko, and V. Maggioni. 2020. "A synthetic experiment to investigate the potential of assimilating LAI through direct insertion in a land surface model." Journal of Hydrology X, 9: 100063 (In Press) [10.1016/j.hydroa.2020.100063]

    Maertens, M., G. J. De Lannoy, S. Apers, S. V. Kumar, and S. P. Mahanama. 2020. "Simulating the Dry Chaco Hydrology under Deforestation Pressure." [10.5194/hess-2020-486]

    Shellito, P. J., S. V. Kumar, J. A. Santanello, et al. P. Lawston-Parker, J. D. Bolten, M. H. Cosh, D. D. Bosch, C. D. Holifield Collins, S. Livingston, J. Prueger, M. Seyfried, and P. J. Starks. 2020. "Assessing the Impact of Soil Layer Depth Specification on the Observability of Modeled Soil Moisture and Brightness Temperature." Journal of Hydrometeorology, 1-54 [10.1175/jhm-d-19-0280.1]

    Zhou, Y., B. F. Zaitchik, S. V. Kumar, et al. K. R. Arsenault, M. A. Matin, F. M. Qamer, R. A. Zamora, and K. Shakya. 2020. "Developing a hydrological monitoring and sub-seasonal to seasonal forecasting system for South and Southeast Asian river basins." (In Press) [10.5194/hess-2020-362]

    Zhang, X., V. Maggioni, A. Rahman, et al. P. Houser, Y. Xue, T. Sauer, S. Kumar, and D. Mocko. 2020. "The influence of assimilating leaf area index in a land surface model on global water fluxes and storages." Hydrology and Earth System Sciences, 24 (7): 3775-3788 [10.5194/hess-24-3775-2020]

    Kumar, S. V., T. R. Holmes, R. Bindlish, R. de Jeu, and C. Peters-Lidard. 2020. "Assimilation of vegetation optical depth retrievals from passive microwave radiometry." Hydrology and Earth System Sciences, 24 (7): 3431-3450 [10.5194/hess-24-3431-2020]

    Rajib, A., I. L. Kim, H. E. Golden, et al. C. R. Lane, S. V. Kumar, Z. Yu, and S. Jeyalakshmi. 2020. "Watershed Modeling with Remotely Sensed Big Data: MODIS Leaf Area Index Improves Hydrology and Water Quality Predictions." Remote Sensing, 12 (13): 2148 [10.3390/rs12132148]

    Chul Jung, H., D.-H. Kang, E. Kim, et al. A. Getirana, Y. Yoon, S. Kumar, C. D. Peters-lidard, and E. Hwang. 2020. "Towards a Soil Moisture Drought Monitoring System for South Korea." Journal of Hydrology, 125176 [10.1016/j.jhydrol.2020.125176]

    Yoo, J., J. A. Santanello, M. Shepherd, et al. S. Kumar, P. Lawston, and A. M. Thomas. 2020. "Quantification of the Land Surface and Brown Ocean Influence on Tropical Cyclone Intensification over Land." Journal of Hydrometeorology, 21 (6): 1171-1192 [10.1175/jhm-d-19-0214.1]

    Shukla, S., K. R. Arsenault, A. Hazra, et al. C. Peters-Lidard, R. D. Koster, F. Davenport, T. Magadzire, C. Funk, S. Kumar, A. McNally, A. Getirana, G. Husak, B. Zaitchik, J. Verdin, F. D. Nsadisa, and I. Becker-Reshef. 2020. "Improving early warning of drought-driven food insecurity in Southern Africa using operational hydrological monitoring and forecasting products." Natural Hazards and Earth System Sciences, [10.5194/nhess-20-1187-2020]

    Arsenault, K. R., S. Shukla, A. Hazra, et al. A. Getirana, A. McNally, S. V. Kumar, R. D. Koster, C. D. Peters-Lidard, B. F. Zaitchik, H. Badr, H. C. Jung, B. Narapusetty, M. Navari, S. Wang, D. M. Mocko, C. Funk, L. Harrison, G. J. Husak, A. Adoum, G. Galu, T. Magadzire, J. Roningen, M. Shaw, J. Eylander, K. Bergaoui, R. A. McDonnell, and J. P. Verdin. 2020. "The NASA hydrological forecast system for food and water security applications." Bull. Amer. Meteor. Soc., early online release [10.1175/bams-d-18-0264.1]

    Kumar, S., D. M. Mocko, C. M. Vuyovich, and C. Peters-Lidard. 2020. "Impact of surface albedo assimilation on snow estimation." Remote Sensing, 12 (4): 645 [10.3390/rs12040645]

    Getirana, A., H. Jung, K. Arsenault, et al. S. Shukla, S. Kumar, C. Peters‐Lidard, I. Maigari, and B. Mamane. 2020. "Satellite gravimetry improves seasonal streamflow forecast initialization in Africa." Water Resources Research, 56 (2): e2019WR026259 [10.1029/2019wr026259]

    Huang, M., J. H. Crawford, G. R. Carmichael, et al. J. A. Santanello, S. V. Kumar, R. M. Stauffer, A. M. Thompson, A. J. Weinheimer, and J. D. Park. 2020. "Impact of Aerosols From Urban and Shipping Emission Sources on Terrestrial Carbon Uptake and Evapotranspiration: A Case Study in East Asia." Journal of Geophysical Research: Atmospheres, 125 (2): [10.1029/2019jd030818]

    Getirana, A., M. Rodell, S. Kumar, et al. H. K. Beaudoing, K. Arsenault, B. Zaitchik, H. Save, and S. Bettadpur. 2020. "GRACE improves seasonal groundwater forecast initialization over the United States." Journal of Hydrometeorology, 21: 59-71 [10.1175/jhm-d-19-0096.1]

    Nie, W., B. F. Zaitchik, M. Rodell, et al. S. V. Kumar, K. R. Arsenault, B. Li, and A. Getirana. 2019. "Assimilating GRACE Into a Land Surface Model in the Presence of an Irrigation‐Induced Groundwater Trend." Water Resources Research, 2019WR025363 [10.1029/2019wr025363]

    Kwon, Y., B. A. Forman, J. A. Ahmad, S. V. Kumar, and Y. Yoon. 2019. "Exploring the Utility of Machine Learning-Based Passive Microwave Brightness Temperature Data Assimilation over Terrestrial Snow in High Mountain Asia." Remote Sensing, 11 (19): 2265 [10.3390/rs11192265]

    Loomis, B. D., A. S. Richey, A. A. Arendt, et al. R. Appana, Y.-J. C. Deweese, B. A. Forman, S. V. Kumar, T. J. Sabaka, and D. E. Shean. 2019. "Water Storage Trends in High Mountain Asia." Frontiers in Earth Science, 7: [10.3389/feart.2019.00235]

    Jasinski, M. F., J. S. Borak, S. V. Kumar, et al. D. M. Mocko, C. D. Peters-Lidard, M. Rodell, H. Rui, H. K. Beaudoing, B. E. Vollmer, K. R. Arsenault, B. Li, J. D. Bolten, and N. Tangdamrongsub. 2019. "NCA-LDAS Noah-3.3 Land Surface Model L4 Trends 0.125 x 0.125 degree V2.0, Annual Trends Data Product." Goddard Earth Sciences Data and Information Services Center (GES DISC), v 2.0: [10.5067/QFZZBKCO5YJG]

    Li, B., M. Rodell, S. Kumar, et al. H. K. Beaudoing, A. Getirana, B. F. Zaitchik, L. G. Goncalves, C. Cossetin, S. Bhanja, A. Mukherjee, S. Tian, N. Tangdamrongsub, D. Long, J. Nanteza, J. Lee, F. Policelli, I. B. Goni, D. Daira, M. Bila, G. Lannoy, D. M. Mocko, S. C. Steele‐Dunne, H. Save, and S. Bettadpur. 2019. "Global GRACE data assimilation for groundwater and drought monitoring: Advances and challenges." Water Resour. Res., 55: 7564-7586 [10.1029/2018wr024618]

    Tavakol, A., V. Rahmani, S. M. Quiring, and S. V. Kumar. 2019. "Evaluation analysis of NASA SMAP L3 and L4 and SPoRT-LIS soil moisture data in the United States." Remote Sensing of Environment, 229: 234-246 [10.1016/j.rse.2019.05.006]

    Jasinski, M. F., J. S. Borak, S. V. Kumar, et al. D. M. Mocko, C. D. Peters-Lidard, M. Rodell, H. Rui, H. K. Beaudoing, B. E. Vollmer, K. R. Arsenault, B. Li, J. D. Bolten, and N. Tangdamrongsub. 2019. "NCA-LDAS: Overview and analysis of hydrologic trends for the National Climate Assessment." J. Hydrometeor., 20: 1595-1617 [10.1175/JHM-D-17-0234.1]

    Kumar, S. V., M. F. Jasinski, D. M. Mocko, et al. M. Rodell, J. S. Borak, B. Li, H. K. Beaudoing, and C. D. Peters-Lidard. 2019. "NCA-LDAS land analysis: Development and performance of a multisensor, multivariate land data assimilation system for the National Climate Assessment." J. Hydrometeor., 20: 1571-1593 [10.1175/JHM-D-17-0125.1]

    Kumar, S. V., D. M. Mocko, S. Wang, C. D. Peters-Lidard, and J. S. Borak. 2019. "Assimilation of remotely sensed Leaf Area Index into the Noah-MP land surface model: Impacts on water and carbon fluxes and states over the continental U.S." J. Hydrometeor., 20: 1359-1377 [10.1175/jhm-d-18-0237.1]

    Yoon, Y., S. V. Kumar, B. A. Forman, et al. B. F. Zaitchik, Y. Kwon, Y. Qian, S. Rupper, V. Maggioni, P. Houser, D. Kirschbaum, A. Richey, A. Arendt, D. M. Mocko, J. Jacob, S. Bhanja, and A. Mukherjee. 2019. "Evaluating the uncertainty of terrestrial water budget components over High Mountain Asia." Frontiers in Earth Science, 7: [10.3389/feart.2019.00120]

    Xue, Y., P. R. Houser, V. Maggioni, et al. Y. Mei, S. V. Kumar, and Y. Yoon. 2019. "Assimilation of Satellite-Based Snow Cover and Freeze/Thaw Observations Over High Mountain Asia." Frontiers in Earth Science, 7: [10.3389/feart.2019.00115]

    Jung, H., A. Getirana, K. R. Arsenault, S. V. Kumar, and I. Maigary. 2019. "Improving Surface Soil Moisture Estimates in West Africa through GRACE Data Assimilation." Journal of Hydrology, [10.1016/j.jhydrol.2019.05.042]

    Santanello, J. A., P. Lawston, S. Kumar, and E. Dennis. 2019. "Understanding the Impacts of Soil Moisture Initial Conditions on NWP in the Context of Land–Atmosphere Coupling." Journal of Hydrometeorology, 20 (5): 793-819 [10.1175/jhm-d-18-0186.1]

    Balsamo, G., A. Agusti-Panareda, C. Albergel, et al. G. Arduini, A. Beljaars, J. Bidlot, N. Bousserez, S. Boussetta, A. Brown, R. Buizza, C. Buontempo, F. Chevallier, M. Choulga, H. Cloke, M. Cronin, M. Dahoui, P. De Rosnay, P. Dirmeyer, M. Dutra, M. Ek, P. Gentine, H. Hewitt, S. Keeley, Y. Kerr, S. Kumar, C. Lupu, J.-F. Mahfouf, J. McNorton, S. Mecklenburg, K. Mogensen, J. Muñoz-Sabater, R. Orth, F. Rabier, R. Reichle, B. Ruston, F. Pappenberger, I. Sandu, S. Seneviratne, S. Tietsche, I. Trigo, R. Uijlenhoet, N. Wedi, R. Woolway, and X. Zeng. 2018. "Satellite and In Situ Observations for Advancing Global Earth Surface Modelling: A Review." Remote Sensing, 10 (12): 2038 [10.3390/rs10122038]

    Xia, Y., D. M. Mocko, S. Wang, et al. M. Pan, S. V. Kumar, C. D. Peters-Lidard, H. Wei, D. Wang, and M. B. Ek. 2018. "Comprehensive evaluation of the Variable Infiltration Capacity (VIC) model in the North American Land Data Assimilation System." J. Hydrometeor., 19 (11): 1853-1879 [10.1175/jhm-d-18-0139.1]

    Huang, M., J. H. Crawford, G. S. Diskin, et al. J. A. Santanello, S. V. Kumar, S. E. Pusede, M. Parrington, and G. R. Carmichael. 2018. "Modeling Regional Pollution Transport Events During KORUS-AQ: Progress and Challenges in Improving Representation of Land-Atmosphere Feedbacks." Journal of Geophysical Research: Atmospheres, 123 (18): 10,732-10,756 [10.1029/2018jd028554]

    Arsenault, K. R., S. V. Kumar, J. V. Geiger, et al. S. Wang, E. Kemp, D. M. Mocko, H. K. Beaudoing, A. Getirana, M. Navari, B. Li, J. Jacob, J. Wegiel, and C. D. Peters-Lidard. 2018. "The Land surface Data Toolkit (LDT v7.2) – a data fusion environment for land data assimilation systems." Geosci. Model Dev., 11 (9): 3605-3621 [10.5194/gmd-11-3605-2018]

    Nie, W., B. F. Zaitchik, M. Rodell, et al. S. V. Kumar, M. C. Anderson, and C. Hain. 2018. "Groundwater Withdrawals Under Drought: Reconciling GRACE and Land Surface Models in the United States High Plains Aquifer." Water Resources Research, 54: [10.1029/2017wr022178]

    Kumar, S. V., T. R. Holmes, D. M. Mocko, S. Wang, and C. D. Peters-Lidard. 2018. "Attribution of flux partitioning variations between land surface models over the continental U.S." Remote Sensing, 10 (5): 751 [10.3390/rs10050751]

    Jasinski, M. F., S. V. Kumar, J. S. Borak, et al. D. M. Mocko, C. D. Peters-Lidard, M. Rodell, H. Rui, H. K. Beaudoing, K. R. Arsenault, B. Li, and J. D. Bolten. 2018. "NCA-LDAS Noah-3.3 Land Surface Model L4 Daily 0.125 x 0.125 degree V2.0, Daily Data." Goddard Earth Sciences Data and Information Services Center (GES DISC), Greenbelt, Maryland, USA, Version 2.0: [10.5067/7V3N5DO04MAS]

    Lawston, P. M., J. A. Santanello, and S. V. Kumar. 2017. "Irrigation Signals Detected From SMAP Soil Moisture Retrievals." Geophysical Research Letters, 44 (23): 11,860-11,867 [10.1002/2017gl075733]

    Kumar, S. V., S. Wang, D. M. Mocko, C. D. Peters-Lidard, and Y. Xia. 2017. "Similarity assessment of land surface model outputs in the North American Land Data Assimilation System (NLDAS)." Water Resour. Res., 53 (11): 8941-8965 [10.1002/2017wr020635]

    Getirana, A., S. V. Kumar, M. Girotto, and M. Rodell. 2017. "Rivers and floodplains as key components of global terrestrial water storage variability." Geophysical Research Letters, 44 (20): 10,359-10,368 [10.1002/2017GL074684]

    Kumar, S. V., P. A. Dirmeyer, C. D. Peters-Lidard, R. Bindlish, and J. Bolten. 2017. "Information theoretic evaluation of satellite soil moisture retrievals." Remote Sensing of Environment, 204: 392-400 [10.1016/j.rse.2017.10.016]

    Jung, H. C., A. Getirana, F. Policelli, et al. A. McNally, K. R. Arsenault, S. Kumar, T. Tadesse, and C. D. Peters-Lidard. 2017. "Upper Blue Nile Basin Water Budget from a Multi-Model Perspective." Journal of Hydrology, [10.1016/j.jhydrol.2017.10.040]

    Getirana, A., S. V. Kumar, M. Girotto, and M. Rodell. 2017. "Rivers and floodplains as key components of global terrestrial water storage variability." Geophysical Research Letters, 44 (20): 10359-10368 [10.1002/2017GL074684]

    Kumar, S. V., J. Dong, C. D. Peters-Lidard, D. M. Mocko, and B. Gómez. 2017. "Role of forcing uncertainty and background model error characterization in snow data assimilation." Hydrology and Earth System Sciences, 21 (6): 2637-2647 [10.5194/hess-21-2637-2017]

    McNally, A., K. Arsenault, S. Kumar, et al. S. Shukla, P. Peterson, S. Wang, C. Funk, C. D. Peters-Lidard, and J. P. Verdin. 2017. "A land data assimilation system for sub-Saharan Africa food and water security applications." Scientific Data, 4: 170012 [10.1038/sdata.2017.12]

    Kumar, S. V., B. F. Zaitchik, C. D. Peters-Lidard, et al. M. Rodell, R. H. Reichle, B. Li, M. F. Jasinski, D. M. Mocko, A. Getirana, G. J. De Lannoy, M. H. Cosh, C. R. Hain, M. Anderson, K. R. Arsenault, Y. Xia, and M. Ek. 2016. "Assimilation of gridded GRACE terrestrial water storage estimates in the North American Land Data Assimilation System." J. Hydrometeor., 17 (7): 1951-1972 [10.1175/jhm-d-15-0157.1]

    Xia, Y., B. A. Cosgrove, K. E. Mitchell, et al. C. D. Peters-Lidard, M. B. Ek, M. Brewer, D. M. Mocko, S. V. Kumar, H. Wei, J. Meng, and L. Luo. 2016. "Basin-scale assessment of the land surface water budget in the NCEP operational and research NLDAS-2 systems." J. Geophys. Res. Atmos., 121 (6): 2750-2779 [10.1002/2015jd023733]

    Santanello, J. A., S. V. Kumar, C. D. Peters-Lidard, and P. M. Lawston. 2016. "Impact of Soil Moisture Assimilation on Land Surface Model Spinup and Coupled Land-Atmosphere Prediction." Journal of Hydrometeorology, 17: 517-540 [10.1175/jhm-d-15-0072.1]

    Xia, Y., B. A. Cosgrove, K. E. Mitchell, et al. C. D. Peters-Lidard, M. B. Ek, S. V. Kumar, D. M. Mocko, and H. Wei. 2016. "Basin-scale assessment of the land surface energy budget in the National Centers for Environmental Prediction operational and research NLDAS-2 systems." J. Geophys. Res. Atmos., 121 (1): 196-220 [10.1002/2015jd023889]

    Nearing, G. S., D. M. Mocko, C. D. Peters-Lidard, S. V. Kumar, and Y. Xia. 2016. "Benchmarking NLDAS-2 soil moisture and evapotranspiration to separate uncertainty contributions." J. Hydrometeor., 17 (3): 745-759 [10.1175/jhm-d-15-0063.1]

    Mazrooei, A., T. Sinha, A. Sankarasubramanian, S. V. Kumar, and C. D. Peters-Lidard. 2015. "Decomposition of Sources of Errors in Seasonal Streamflow Forecasting over the US Sunbelt." J. Geophys. Res. Atmos., 120 (23): 11,809–11,825 [10.1002/2015jd023687]

    Tian, Y., C. D. Peters-Lidard, K. W. Harrison, et al. Y. You, S. E. Finn, S. V. Kumar, and J. F. Turk. 2015. "An examination of methods for estimating land surface microwave emissivity." J. Geophys. Res. Atmos., 120: 11,114-11,128 [10.1002/2015JD023582]

    Tian, Y., C. D. Peters-Lidard, K. W. Harrison, et al. Y. You, S. Ringerud, S. Kumar, and F. J. Turk. 2015. "An examination of methods for estimating land surface microwave emissivity." J. Geophys. Res. Atmos., 120 (21): 11,114-11,128 [10.1002/2015jd023582]

    Kumar, S. V., C. D. Peters-Lidard, J. A. Santanello, et al. R. H. Reichle, C. S. Draper, R. D. Koster, G. Nearing, and M. F. Jasinski. 2015. "Evaluating the utility of satellite soil moisture retrievals over irrigated areas and the ability of land data assimilation methods to correct for unmodeled processes." Hydrology and Earth System Sciences, 19 (11): 4463-4478 [10.5194/hess-19-4463-2015]

    Kumar, S. V., C. D. Peters-Lidard, K. R. Arsenault, et al. A. Getirana, D. M. Mocko, and Y. Liu. 2015. "Quantifying the added value of snow cover area observations in passive microwave snow depth data assimilation." J. Hydrometeor., 16 (4): 1736-1741 [10.1175/JHM-D-15-0021.1]

    Peters-Lidard, C. D., E. M. Kemp, T. Matsui, et al. J. A. Santanello, S. V. Kumar, J. P. Jacob, T. L. Clune, W.-K. Tao, M. Chin, A. Hou, J. L. Case, D. Kim, K.-M. Kim, W. K. Lau, Y. Liu, J. J. Shi, D. O. Starr, Q. Tan, Z. Tao, B. F. Zaitchik, B. Zavodsky, Q. Zhang, and M. Zupanski. 2015. "Integrated modeling of aerosol, cloud, precipitation and land processes at satellite-resolved scales." Environmental Modelling and Software, 67: 149-159 [Full Text (Link)] [doi:10.1016/j.envsoft.2015.01.007]

    Liu, Y., C. D. Peters-Lidard, S. V. Kumar, K. R. Arsenault, and D. M. Mocko. 2015. "Blending satellite-based snow depth products with in situ observations for streamflow predictions in the Upper Colorado River Basin." Water Resour. Res., 51 (2): 1182-1202 [10.1002/2014WR016606]

    Harrison, K. W., Y. Tian, C. D. Peters-Lidard, S. E. Finn, and S. V. Kumar. 2015. "Calibration to improve forward model simulation of microwave emissivity at GPM frequencies over the U.S. Southern Great Plains." IEEE Trans. Geophys. Remote Sens., 54 (2): [10.1109/TGRS.2015.2474120]

    Kumar, S. V., C. D. Peters-Lidard, J. A. Santanello, et al. R. H. Reichle, C. S. Draper, R. D. Koster, G. S. Nearing, and M. F. Jasinski. 2015. "Evaluating the utility of satellite soil moisture retrievals over irrigated areas and the ability of land data assimilation methods to correct for unmodeled processes." Hydrology and Earth System Sciences Discussions, 12: 5967 [Full Text (Link)] [10.5194/hessd-12-5967-2015]

    Kumar, S. V., C. D. Peters-Lidard, D. M. Mocko, et al. R. H. Reichle, Y. Liu, K. R. Arsenault, Y. Xia, M. Ek, G. A. Riggs, B. Livneh, and M. Cosh. 2014. "Assimilation of passive microwave-based soil moisture and snow depth retrievals for drought estimation." J. Hydrometeor., 15 (6): 2446-2469 [10.1175/JHM-D-13-0132.1]

    Getirana, A., E. Dutra, M. Guimberteau, et al. J. Kam, H.-Y. Li, B. Decharme, Z. Zhang, A. Ducharne, A. Boone, G. Balsamo, M. Rodell, A. M. Toure, Y. Xue, C. D. Peters-Lidard, S. V. Kumar, K. R. Arsenault, G. Drapeau, L. R. Leung, J. Ronchail, and J. Sheffield. 2014. "Water Balance in the Amazon Basin from a Land Surface Model Ensemble." J. Hydrometeor, 15 (6): 2586-2614 [10.1175/JHM-D-14-0068.1]

    Case, J. L., F. J. LaFontaine, J. R. Bell, et al. G. J. Jedlovec, S. V. Kumar, and C. D. Peters-Lidard. 2014. "A Real-Time MODIS Vegetation Product for Land Surface and Numerical Weather Prediction Models." Geoscience and Remote Sensing, IEEE Transactions on, 52 (3): 1772 - 1786 [10.1109/TGRS.2013.2255059]

    Kumar, S. V., K. W. Harrison, C. D. Peters-Lidard, J. A. Santanello, and D. B. Kirschbaum. 2014. "Assessing the Impact of L-Band Observations on Drought and Flood Risk Estimation: A Decision-Theoretic Approach in an OSSE Environment." J. Hydrometeor, 15 (6): 2140-2156 [Full Text (Link)] [10.1175/JHM-D-13-0204.1]

    Kumar, S. V., C. D. Peters-Lidard, D. M. Mocko, and Y. Tian. 2013. "Multiscale evaluation of the improvements in surface snow simulation through terrain adjustments to radiation." J. Hydrometeor., 14 (1): 220-232 [10.1175/JHM-D-12-046.1]

    Santanello, J., C. D. Peters-Lidard, A. Kennedy, S. Kumar, and S. Zhou. 2013. "Diagnosing the Nature of Land–Atmosphere Coupling: A Case Study of Dry/Wet Extremes in the U.S. Southern Great Plains." J. Hydrometeor., 14 (1): 3-24 [10.1175/JHM-D-12-023.1]

    Santanello, J. A., S. V. Kumar, C. D. Peters-Lidard, K. W. Harrison, and S. Zhou. 2013. "Impact of Land Model Calibration on Coupled Land–Atmosphere Prediction." J. Hydrometeor., 14 (5): 1373-1400 [10.1175/JHM-D-12-0127.1]

    Zaitchik, B. F., J. A. Santanello, S. V. Kumar, and C. D. Peters-Lidard. 2013. "Representation of Soil Moisture Feedbacks during Drought in NASA Unified WRF (NU-WRF)." J. Hydrometeor, 14 (1): 360-367 [10.1175/JHM-D-12-069.1]

    Liu, Y., C. D. Peters-Lidard, S. V. Kumar, et al. J. L. Foster, M. J. Shaw, Y. Tian, and F. G. Hall. 2013. "Assimilating satellite-based snow depth and snow cover products for improving snow predictions in Alaska." Advances in Water Resources, 54: 208-227 [10.1016/j.advwatres.2013.02.005]

    Mohr, K., W. Tao, J. Chern, S. Kumar, and C. Peters-Lidard. 2013. "The NASA-Goddard Multi-scale Modeling Framework–Land Information System: Global land/atmosphere interaction with resolved convection." Environmental Modelling & Software, 39: 103-115 [10.1016/j.envsoft.2012.02.023]

    Yatheendradas, S., C. D. Peters-Lidard, V. Koren, et al. B. Cosgrive, L. De Goncalves, M. Smith, J. V. Geiger, Z. Cui, J. S. Borak, S. V. Kumar, D. L. Toll, G. A. Riggs, and N. Mizukami. 2012. "Distributed assimilation of satellite-based snow extent for improving simulated streamflow in mountainous, dense forests: An example over the DMIP2 western basins." Water Resour. Res., 48 (9): W09557 [10.1029/2011WR011347]

    De Lannoy, G. J., R. H. Reichle, K. R. Arsenault, et al. P. R. Houser, S. V. Kumar, N. E. Verhoest, and V. R. Pauwels. 2012. "Multiscale assimilation of Advanced Microwave Scanning Radiometer–EOS snow water equivalent and Moderate Resolution Imaging Spectroradiometer snow cover fraction observations in northern Colorado." Water Resour. Res., 48 (1): W01522 [10.1029/2011WR010588]

    Kumar, S., R. Reichle, K. Harrison, et al. C. Peters-Lidard, S. Yatheendradas, and J. Santanello. 2012. "A comparison of methods for a priori bias correction in soil moisture data assimilation." Water Resour. Res., 48 (3): W03515 [10.1029/2010WR010261]

    Hall, D., J. L. Foster, S. Kumar, J. Y. Chien, and G. A. Riggs. 2012. "Improving the accuracy of the AFWA-NASA (ANSA) blended snow-cover product over the Lower Great Lakes region." Hydrology and Earth System Sciences Discussions, 9 (1): 1141-1161 [10.5194/hessd-9-1141-2012]

    Kumar, S., C. Peters-Lidard, J. Santanello, et al. K. Harrison, Y. Liu, and M. Shaw. 2012. "Land surface Verification Toolkit (LVT) – a generalized framework for land surface model evaluation." Geosci. Model Dev., 5 (3): 869-886 [10.5194/gmd-5-869-2012]

    Crow, W. T., S. V. Kumar, and J. D. Bolten. 2012. "On the utility of land surface models for agricultural drought monitoring." Hydrology and Earth System Sciences, 16 (9): 3451-3460 [10.5194/hess-16-3451-2012]

    Harrison, K., S. V. Kumar, C. D. Peters-Lidard, and J. A. Santanello. 2012. "Quantifying the change in soil moisture modeling uncertainty from remote sensing observations using Bayesian inference techniques." Water Resour. Res., 48 (11): W11514 [10.1029/2012WR012337]

    Veenadhari, B., R. Selvakumaran, R. Singh, et al. A. Maurya, N. Gopalswamy, S. Kumar, and T. Kikuchi. 2012. "Coronal mass ejection–driven shocks and the associated sudden commencements/sudden impulses." J. Geophys. Res., 117 (A4): A04210 [10.1029/2011JA017216]

    Peters-Lidard, C. D., S. V. Kumar, D. M. Mocko, and Y. Tian. 2011. "Estimating evapotranspiration with land data assimilation systems." Hydrological Processes, 25 (26): 3979-3992 [10.1002/hyp.8387]

    Kirschbaum, D. B., R. F. Adler, Y. Hong, S. V. Kumar, and C. D. Peters-Lidard. 2011. "Advances in landslide nowcasting: evaluation of a global and regional modeling approach." Environmental Earth Sciences, 66 (6): 1683-1696 [10.1007/s12665-011-0990-3]

    Santanello, J. A., C. D. Peters-Lidard, and S. V. Kumar. 2011. "Diagnosing the Sensitivity of Local Land–Atmosphere Coupling via the Soil Moisture–Boundary Layer Interaction." J. Hydrometeor, 12 (5): 766-786 [10.1175/JHM-D-10-05014.1]

    Reichle, R. H., S. V. Kumar, S. P. Mahanama, R. D. Koster, and Q. Liu. 2010. "Assimilation of Satellite-Derived Skin Temperature Observations into Land Surface Models." J. Hydrometeor, 11 (5): 1103-1122 [10.1175/2010JHM1262.1]

    Tian, Y., J. V. Geiger, H. Su, S. Kumar, and P. R. Houser. 2010. "Middleware-Based Sensor Web Integration." IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing, 3 (4): 467-472 [10.1109/JSTARS.2010.2049732]

    Hall, D. K., G. A. Riggs, J. L. Foster, and S. V. Kumar. 2010. "Development and evaluation of a cloud-gap-filled MODIS daily snow-cover product." Remote Sens Environ, 114 (3): 496-503 [10.1016/j.rse.2009.10.007]

    Kumar, S., R. H. Reichle, R. D. Koster, W. T. Crow, and C. Peters-Lidard. 2009. "Role of Subsurface Physics in the Assimilation of Surface Soil Moisture Observations." J. Hydrometeor, 10 (6): 1534-1547 [10.1175/2009JHM1134.1]

    Kumar, S. V., R. H. Reichle, C. D. Peters-Lidard, et al. R. D. Koster, X. Zhan, W. T. Crow, J. B. Eylander, and P. R. Houser. 2008. "A land surface data assimilation framework using the land information system: Description and applications." Advances in Water Resources, 31 (11): 1419-1432 [10.1016/j.advwatres.2008.01.013]

    Case, J., W. Crosson, S. V. Kumar, W. Lapenta, and C. Peters-Lidard. 2008. "Impacts of High-Resolution Land Surface Initialization on Regional Sensible Weather Forecasts from the WRF Model." J Hydrometeorol., 9 (6): 1249-1266 [10.1175/2008JHM990.1]

    Kumar, S. V., C. Peters-Lidard, J. Eastman, and W. Tao. 2008. "An integrated high-resolution hydrometeorological modeling testbed using LIS and WRF." Environmental Modelling & Software, 23 (2): 169-181 [10.1016/j.envsoft.2007.05.012]

    Kumar, S. V., C. Peters-Lidard, Y. Tian, et al. R. Reichle, J. Geiger, C. Alonge, J. Eylander, and P. Houser. 2008. "An Integrated Hydrologic Modeling and Data Assimilation Framework." Computer, 41 (12): 52-59 [10.1109/MC.2008.475]

    Tian, Y., C. Peters-Lidard, S. V. Kumar, et al. J. Geiger, P. Houser, J. Eastman, P. Dirmeyer, B. Doty, and J. Adams. 2008. "High-performance land surface modeling with a Linux cluster." Computers & Geosciences, 34 (11): 1492-1504 [10.1016/j.cageo.2007.12.014]

    Peters-Lidard, C. D., P. R. Houser, Y. Tian, et al. S. V. Kumar, J. Geiger, S. Olden, L. Lighty, B. Doty, P. Dirmeyer, J. Adams, K. Mitchell, E. F. Wood, and J. Sheffield. 2007. "High-performance Earth system modeling with NASA/GSFC’s Land Information System." Innovations in Systems and Software Engineering, 3 (3): 157-165 [10.1007/s11334-007-0028-x]

    Tischler, M., M. Garcia, C. D. Peters-Lidard, et al. M. Moran, S. Miller, D. Thoma, S. V. Kumar, and J. Geiger. 2007. "A GIS framework for surface-layer soil moisture estimation combining satellite radar measurements and land surface modeling with soil physical property estimation." Environmental Modelling & Software, 22 (6): 891-898 [10.1016/j.envsoft.2006.05.022]

    Zeng, X., W.-K. Tao, M. Zhang, et al. C. Peters-Lidard, S. E. Lang, J. Simpson, S. Kumar, S. Xie, J. Eastman, C.-L. Shie, and J. Geiger. 2007. "Evaluating Clouds in Long-Term Cloud-Resolving Model Simulations with Observational Data." J Atmos Sci, 64: 4153-4329.

    Kumar, S. V., Y. Tian, C. Peters-Lidard, et al. P. Houser, J. Geiger, S. Olden, L. Lighty, J. Eastman, B. Doty, P. Dirmeyer, J. Adams, K. Mitchell, E. Wood, and J. Sheffield. 2006. "Land information system: An interoperable framework for high resolution land surface modeling." Environ Modelling Software, 21: 1402-1415.

    Non-Refereed

    Kim, E., B. A. Forman, L. Wang, et al. J. Lemoigne-Stewart, S. Nag, S. Kumar, C. Vuyovich, B. Blair, and M. Hofton. 2019. "Space-Time Coverage Scenarios for A Global Snow Satellite Constellation." IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Yokohama, Japan, 28 July - 2 August 2019 [10.1109/igarss.2019.8899017]

    Doorn, B., M. F. Jasinski, J. Reager, et al. M. Srinivasan, S. Bettadpur, J. D. Bolten, M. Brown, F. Flechtner, E. Ivins, S. V. Kumar, F. Landerer, P. Morton, F. S. Policelli, M. Rodell, L. Tsaoussi, and F. Webb. 2016. "Applications Plan for the Gravity Recovery And Climate Experiment (GRACE) Missions: GRACE, GRACE-FO, and Future Missions." GRACE Tellus 15 [Full Text (Link)]

    Peters-Lidard, C. D., J. B. Eylander, R. D. Koster, et al. B. Narapusetty, S. V. Kumar, M. Rodell, J. D. Bolten, D. M. Mocko, G. K. Walker, K. R. Arsenault, and S. W. Rheingrover. 2014. "Drought Prediction for Socio-Cultural Stability Project." NASA/TM-2014-218303 [Full Text (Link)]

    Tian, Y., C. D. Peters-Lidard, K. W. Harrison, S. V. Kumar, and S. Ringerud. 2014. "Land surface microwave emissivity dynamics: Observations, analysis and modeling ." Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014 13th Specialist Meeting on 99 - 102 , ISBN: 978-1-4799-4645-7 . [10.1109/MicroRad.2014.6878917]

    Tao, W.-K., D. Anderson, R. Atlas, et al. J.-D. Chern, P. Houser, A. Y. Hou, S. E. Lang, W. K. Lau, C. D. Peters-Lidard, R. Kakar, S. V. Kumar, W. Lapenta, X. Li, T. Matsui, M. M. Rienecker, B.-W. Shen, J. J. Shi, J. Simpson, and X. Zeng. 2008. "A Goddard multi-scale modeling system with unified physics." GEWEX News 18 (1): 6-8 [Full Text (Link)]

    Tian, Y., P. R. Houser, H. Su, S. V. Kumar, and J. V. Geiger Jr. 2008. "Integrating sensor webs with modeling and data-assimilation applications: An SOA implementation." Proc IEEE Aerospace Conf 1 - 7 [10.1109/AERO.2008.4526452]

    Pinheiro, T. A., K. Arsenault, P. Houser, et al. D. Toll, S. V. Kumar, D. Matthews, and R. W. Stodt. 2004. "Improved evapotranspiration estimates to aid water management practices in the Rio Grande river basin." Proc IGARSS 2004 3: Anchorage, Alaska, 2123-2126.

    Publications

    Refereed

    McNally, A., J. Jacob, K. Arsenault, et al. K. Slinski, D. P. Sarmiento, A. Hoell, S. Pervez, J. Rowland, M. Budde, S. Kumar, C. Peters-Lidard, and J. P. Verdin. 2022. "A Central Asia hydrologic monitoring dataset for food and water security applications in Afghanistan." Earth System Science Data 14 (7): 3115-3135 [10.5194/essd-14-3115-2022]

    Yoon, Y., E. M. Kemp, S. V. Kumar, et al. J. W. Wegiel, C. M. Vuyovich, and C. Peters-Lidard. 2022. "Development of a global operational snow analysis: The US Air Force Snow and Ice Analysis." Remote Sensing of Environment 278 113080 [10.1016/j.rse.2022.113080]

    Nie, W., S. V. Kumar, K. R. Arsenault, et al. C. D. Peters-Lidard, I. E. Mladenova, K. Bergaoui, A. Hazra, B. F. Zaitchik, S. P. Mahanama, R. McDonnell, D. M. Mocko, and M. Navari. 2022. "Towards effective drought monitoring in the Middle East and North Africa (MENA) region: implications from assimilating leaf area index and soil moisture into the Noah-MP land surface model for Morocco." Hydrology and Earth System Sciences 26 (9): 2365-2386 [10.5194/hess-26-2365-2022]

    Nie, W., S. V. Kumar, K. R. Arsenault, et al. C. D. Peters-Lidard, I. E. Mladenova, K. Bergaoui, A. Hazra, B. F. Zaitchik, S. P. Mahanama, R. McDonnell, D. M. Mocko, and M. Navari. 2022. "Towards Effective Drought Monitoring in the Middle East and North Africa (MENA) Region: Implications from Assimilating Leaf Area Index and Soil Moisture into the Noah-MP Land Surface Model for Morocco." Hydrology and Earth System Sciences 26 2365-2386 [10.5194/hess-2021-263]

    Ahmad, J. A., B. A. Forman, and S. V. Kumar. 2022. "Soil moisture estimation in South Asia via assimilation of SMAP retrievals." Hydrology and Earth System Sciences 26 (8): 2221-2243 [10.5194/hess-26-2221-2022]

    Xue, Y., P. R. Houser, V. Maggioni, et al. Y. Mei, S. V. Kumar, and Y. Yoon. 2022. "Evaluation of High Mountain Asia‐Land Data Assimilation System (Version 1) From 2003 to 2016: 2. The Impact of Assimilating Satellite‐Based Snow Cover and Freeze/Thaw Observations Into a Land Surface Model." Journal of Geophysical Research: Atmospheres 127 (7): [10.1029/2021jd035992]

    Lahmers, T. M., S. V. Kumar, D. Rosen, et al. A. Dugger, D. J. Gochis, J. A. Santanello, C. Gangodagamage, and R. Dunlap. 2022. "Assimilation of NASA's Airborne Snow Observatory Snow Measurements for Improved Hydrological Modeling: A Case Study Enabled by the Coupled LIS/WRF‐Hydro System." Water Resources Research 58 (3): e2021WR029867 [10.1029/2021wr029867]

    Maina, F. Z., S. V. Kumar, C. Albergel, and S. P. Mahanama. 2022. "Warming, increase in precipitation, and irrigation enhance greening in High Mountain Asia." Communications Earth & Environment 3 (1): 43 [10.1038/s43247-022-00374-0]

    Kumar, S., A. Getirana, R. Libonati, et al. C. Hain, S. Mahanama, and N. Andela. 2022. "Changes in land use enhance the sensitivity of tropical ecosystems to fire-climate extremes." Scientific Reports 12 (1): 964 [10.1038/s41598-022-05130-0]

    Wrzesien, M., S. V. Kumar, C. M. Vuyovich, and R. Kim. 2022. "Development of a “nature run” for observing system simulation experiments (OSSEs) for snow mission development." Journal of Hydrometeorology [10.1175/jhm-d-21-0071.1]

    Park, J., B. A. Forman, and S. V. Kumar. 2021. "Estimation of Snow Mass Information via Assimilation of C-Band Synthetic Aperture Radar Backscatter Observations Into an Advanced Land Surface Model." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 15 862-875 [10.1109/jstars.2021.3133513]

    Konapala, G., S. V. Kumar, and S. Khalique Ahmad. 2021. "Exploring Sentinel-1 and Sentinel-2 diversity for flood inundation mapping using deep learning." ISPRS Journal of Photogrammetry and Remote Sensing 180 163-173 [10.1016/j.isprsjprs.2021.08.016]

    Yatheendradas, S., and S. Kumar. 2021. "A novel Machine Learning-based gap-filling of fine-resolution remotely sensed snow cover fraction data by combining downscaling and regression." Journal of Hydrometeorology [10.1175/jhm-d-20-0111.1]

    Kwon, Y., Y. Yoon, B. A. Forman, S. V. Kumar, and L. Wang. 2021. "Quantifying the observational requirements of a space-borne LiDAR snow mission." Journal of Hydrology 601 126709 [10.1016/j.jhydrol.2021.126709]

    Lawston-Parker, P., J. A. Santanello, and S. V. Kumar. 2021. "Understanding the Impacts of Land Surface and PBL Observations on the Terrestrial and Atmospheric Legs of Land–Atmosphere Coupling." Journal of Hydrometeorology 22 (9): 2241-2258 [10.1175/jhm-d-20-0263.1]

    Zamora, R. A., B. F. Zaitchik, M. Rodell, et al. A. Getirana, S. Kumar, K. Arsenault, and E. Gutmann. 2021. "Contribution of Meteorological Downscaling to Skill and Precision of Seasonal Drought Forecasts." Journal of Hydrometeorology [10.1175/jhm-d-20-0259.1]

    Getirana, A., S. Kumar, G. Konapala, and C. E. Ndehedehe. 2021. "Impacts of fully coupling land surface and flood models on the simulation of large wetland’s water dynamics: the case of the Inner Niger Delta." Journal of Advances in Modeling Earth Systems 13 (5): [10.1029/2021ms002463]

    Mocko, D. M., S. V. Kumar, C. D. Peters-Lidard, and S. Wang. 2021. "Assimilation of vegetation conditions improves the representation of drought over agricultural areas." J. Hydrometeor. 22 (5): 1085-1098 [10.1175/jhm-d-20-0065.1]

    Erlingis, J. M., M. Rodell, C. D. Peters‐Lidard, et al. B. Li, S. V. Kumar, J. S. Famiglietti, S. L. Granger, J. V. Hurley, P. Liu, and D. M. Mocko. 2021. "A High‐Resolution Land Data Assimilation System Optimized for the Western United States." JAWRA Journal of the American Water Resources Association 1-19 [10.1111/1752-1688.12910]

    Abbaszadeh, P., H. Moradkhani, K. Gavahi, et al. S. Kumar, C. Hain, X. Zhan, Q. Duan, C. Peters-Lidard, and M. Karimiziarani. 2021. "High-Resolution SMAP Satellite Soil Moisture Product: Exploring the Opportunities." Bulletin of the American Meteorological Society (In Press) 1-15 [10.1175/bams-d-21-0016.1]

    Kim, R., S. Kumar, C. Vuyovich, et al. P. Houser, J. Lundquist, L. Mudryk, M. Durand, A. Barros, E. J. Kim, B. A. Forman, E. D. Gutmann, M. L. Wrzesien, C. Garnaud, M. Sandells, H.-P. Marshall, N. Cristea, J. M. Pflug, J. Johnston, Y. Cao, D. Mocko, and S. Wang. 2021. "Snow Ensemble Uncertainty Project (SEUP): quantification of snow water equivalent uncertainty across North America via ensemble land surface modeling." The Cryosphere 15 (2): 771-791 [10.5194/tc-15-771-2021]

    Li, B., M. Rodell, C. Peters-Lidard, et al. J. Erlingis, S. Kumar, and D. Mocko. 2021. "Groundwater recharge estimated by land surface models: an evaluation in the conterminous U.S." Journal of Hydrometeorology [https://doi.org/10.1175/JHM-D-20-0130.1]

    Kumar, S. V., T. Holmes, N. Andela, et al. I. Dharssi, Vinodkumar, C. Hain, C. Peters‐Lidard, S. P. Mahanama, K. R. Arsenault, W. Nie, and A. Getirana. 2020. "The 2019‐2020 Australian drought and bushfires altered the partitioning of hydrological fluxes." Geophysical Research Letters 48 (1): [10.1029/2020gl091411]

    Nie, W., B. F. Zaitchik, M. Rodell, et al. S. V. Kumar, K. R. Arsenault, and H. S. Badr. 2020. "Irrigation water demand sensitivity to climate variability across the Contiguous United States." Water Resources Research (In Press) 57 (3): [10.1029/2020wr027738]

    Rahman, A., X. Zhang, Y. Xue, et al. P. Houser, T. Sauer, S. Kumar, D. Mocko, and V. Maggioni. 2020. "A synthetic experiment to investigate the potential of assimilating LAI through direct insertion in a land surface model." Journal of Hydrology X (In Press) 9 100063 [10.1016/j.hydroa.2020.100063]

    Maertens, M., G. J. De Lannoy, S. Apers, S. V. Kumar, and S. P. Mahanama. 2020. "Simulating the Dry Chaco Hydrology under Deforestation Pressure." [10.5194/hess-2020-486]

    Shellito, P. J., S. V. Kumar, J. A. Santanello, et al. P. Lawston-Parker, J. D. Bolten, M. H. Cosh, D. D. Bosch, C. D. Holifield Collins, S. Livingston, J. Prueger, M. Seyfried, and P. J. Starks. 2020. "Assessing the Impact of Soil Layer Depth Specification on the Observability of Modeled Soil Moisture and Brightness Temperature." Journal of Hydrometeorology 1-54 [10.1175/jhm-d-19-0280.1]

    Zhou, Y., B. F. Zaitchik, S. V. Kumar, et al. K. R. Arsenault, M. A. Matin, F. M. Qamer, R. A. Zamora, and K. Shakya. 2020. "Developing a hydrological monitoring and sub-seasonal to seasonal forecasting system for South and Southeast Asian river basins." (In Press) [10.5194/hess-2020-362]

    Zhang, X., V. Maggioni, A. Rahman, et al. P. Houser, Y. Xue, T. Sauer, S. Kumar, and D. Mocko. 2020. "The influence of assimilating leaf area index in a land surface model on global water fluxes and storages." Hydrology and Earth System Sciences 24 (7): 3775-3788 [10.5194/hess-24-3775-2020]

    Kumar, S. V., T. R. Holmes, R. Bindlish, R. de Jeu, and C. Peters-Lidard. 2020. "Assimilation of vegetation optical depth retrievals from passive microwave radiometry." Hydrology and Earth System Sciences 24 (7): 3431-3450 [10.5194/hess-24-3431-2020]

    Rajib, A., I. L. Kim, H. E. Golden, et al. C. R. Lane, S. V. Kumar, Z. Yu, and S. Jeyalakshmi. 2020. "Watershed Modeling with Remotely Sensed Big Data: MODIS Leaf Area Index Improves Hydrology and Water Quality Predictions." Remote Sensing 12 (13): 2148 [10.3390/rs12132148]

    Chul Jung, H., D.-H. Kang, E. Kim, et al. A. Getirana, Y. Yoon, S. Kumar, C. D. Peters-lidard, and E. Hwang. 2020. "Towards a Soil Moisture Drought Monitoring System for South Korea." Journal of Hydrology 125176 [10.1016/j.jhydrol.2020.125176]

    Yoo, J., J. A. Santanello, M. Shepherd, et al. S. Kumar, P. Lawston, and A. M. Thomas. 2020. "Quantification of the Land Surface and Brown Ocean Influence on Tropical Cyclone Intensification over Land." Journal of Hydrometeorology 21 (6): 1171-1192 [10.1175/jhm-d-19-0214.1]

    Shukla, S., K. R. Arsenault, A. Hazra, et al. C. Peters-Lidard, R. D. Koster, F. Davenport, T. Magadzire, C. Funk, S. Kumar, A. McNally, A. Getirana, G. Husak, B. Zaitchik, J. Verdin, F. D. Nsadisa, and I. Becker-Reshef. 2020. "Improving early warning of drought-driven food insecurity in Southern Africa using operational hydrological monitoring and forecasting products." Natural Hazards and Earth System Sciences [10.5194/nhess-20-1187-2020]

    Arsenault, K. R., S. Shukla, A. Hazra, et al. A. Getirana, A. McNally, S. V. Kumar, R. D. Koster, C. D. Peters-Lidard, B. F. Zaitchik, H. Badr, H. C. Jung, B. Narapusetty, M. Navari, S. Wang, D. M. Mocko, C. Funk, L. Harrison, G. J. Husak, A. Adoum, G. Galu, T. Magadzire, J. Roningen, M. Shaw, J. Eylander, K. Bergaoui, R. A. McDonnell, and J. P. Verdin. 2020. "The NASA hydrological forecast system for food and water security applications." Bull. Amer. Meteor. Soc. early online release [10.1175/bams-d-18-0264.1]

    Kumar, S., D. M. Mocko, C. M. Vuyovich, and C. Peters-Lidard. 2020. "Impact of surface albedo assimilation on snow estimation." Remote Sensing 12 (4): 645 [10.3390/rs12040645]

    Getirana, A., H. Jung, K. Arsenault, et al. S. Shukla, S. Kumar, C. Peters‐Lidard, I. Maigari, and B. Mamane. 2020. "Satellite gravimetry improves seasonal streamflow forecast initialization in Africa." Water Resources Research 56 (2): e2019WR026259 [10.1029/2019wr026259]

    Huang, M., J. H. Crawford, G. R. Carmichael, et al. J. A. Santanello, S. V. Kumar, R. M. Stauffer, A. M. Thompson, A. J. Weinheimer, and J. D. Park. 2020. "Impact of Aerosols From Urban and Shipping Emission Sources on Terrestrial Carbon Uptake and Evapotranspiration: A Case Study in East Asia." Journal of Geophysical Research: Atmospheres 125 (2): [10.1029/2019jd030818]

    Getirana, A., M. Rodell, S. Kumar, et al. H. K. Beaudoing, K. Arsenault, B. Zaitchik, H. Save, and S. Bettadpur. 2020. "GRACE improves seasonal groundwater forecast initialization over the United States." Journal of Hydrometeorology 21 59-71 [10.1175/jhm-d-19-0096.1]

    Nie, W., B. F. Zaitchik, M. Rodell, et al. S. V. Kumar, K. R. Arsenault, B. Li, and A. Getirana. 2019. "Assimilating GRACE Into a Land Surface Model in the Presence of an Irrigation‐Induced Groundwater Trend." Water Resources Research 2019WR025363 [10.1029/2019wr025363]

    Kwon, Y., B. A. Forman, J. A. Ahmad, S. V. Kumar, and Y. Yoon. 2019. "Exploring the Utility of Machine Learning-Based Passive Microwave Brightness Temperature Data Assimilation over Terrestrial Snow in High Mountain Asia." Remote Sensing 11 (19): 2265 [10.3390/rs11192265]

    Loomis, B. D., A. S. Richey, A. A. Arendt, et al. R. Appana, Y.-J. C. Deweese, B. A. Forman, S. V. Kumar, T. J. Sabaka, and D. E. Shean. 2019. "Water Storage Trends in High Mountain Asia." Frontiers in Earth Science 7 [10.3389/feart.2019.00235]

    Jasinski, M. F., J. S. Borak, S. V. Kumar, et al. D. M. Mocko, C. D. Peters-Lidard, M. Rodell, H. Rui, H. K. Beaudoing, B. E. Vollmer, K. R. Arsenault, B. Li, J. D. Bolten, and N. Tangdamrongsub. 2019. "NCA-LDAS Noah-3.3 Land Surface Model L4 Trends 0.125 x 0.125 degree V2.0, Annual Trends Data Product." Goddard Earth Sciences Data and Information Services Center (GES DISC) v 2.0 [10.5067/QFZZBKCO5YJG]

    Li, B., M. Rodell, S. Kumar, et al. H. K. Beaudoing, A. Getirana, B. F. Zaitchik, L. G. Goncalves, C. Cossetin, S. Bhanja, A. Mukherjee, S. Tian, N. Tangdamrongsub, D. Long, J. Nanteza, J. Lee, F. Policelli, I. B. Goni, D. Daira, M. Bila, G. Lannoy, D. M. Mocko, S. C. Steele‐Dunne, H. Save, and S. Bettadpur. 2019. "Global GRACE data assimilation for groundwater and drought monitoring: Advances and challenges." Water Resour. Res. 55 7564-7586 [10.1029/2018wr024618]

    Tavakol, A., V. Rahmani, S. M. Quiring, and S. V. Kumar. 2019. "Evaluation analysis of NASA SMAP L3 and L4 and SPoRT-LIS soil moisture data in the United States." Remote Sensing of Environment 229 234-246 [10.1016/j.rse.2019.05.006]

    Jasinski, M. F., J. S. Borak, S. V. Kumar, et al. D. M. Mocko, C. D. Peters-Lidard, M. Rodell, H. Rui, H. K. Beaudoing, B. E. Vollmer, K. R. Arsenault, B. Li, J. D. Bolten, and N. Tangdamrongsub. 2019. "NCA-LDAS: Overview and analysis of hydrologic trends for the National Climate Assessment." J. Hydrometeor. 20 1595-1617 [10.1175/JHM-D-17-0234.1]

    Kumar, S. V., M. F. Jasinski, D. M. Mocko, et al. M. Rodell, J. S. Borak, B. Li, H. K. Beaudoing, and C. D. Peters-Lidard. 2019. "NCA-LDAS land analysis: Development and performance of a multisensor, multivariate land data assimilation system for the National Climate Assessment." J. Hydrometeor. 20 1571-1593 [10.1175/JHM-D-17-0125.1]

    Kumar, S. V., D. M. Mocko, S. Wang, C. D. Peters-Lidard, and J. S. Borak. 2019. "Assimilation of remotely sensed Leaf Area Index into the Noah-MP land surface model: Impacts on water and carbon fluxes and states over the continental U.S." J. Hydrometeor. 20 1359-1377 [10.1175/jhm-d-18-0237.1]

    Yoon, Y., S. V. Kumar, B. A. Forman, et al. B. F. Zaitchik, Y. Kwon, Y. Qian, S. Rupper, V. Maggioni, P. Houser, D. Kirschbaum, A. Richey, A. Arendt, D. M. Mocko, J. Jacob, S. Bhanja, and A. Mukherjee. 2019. "Evaluating the uncertainty of terrestrial water budget components over High Mountain Asia." Frontiers in Earth Science 7 [10.3389/feart.2019.00120]

    Xue, Y., P. R. Houser, V. Maggioni, et al. Y. Mei, S. V. Kumar, and Y. Yoon. 2019. "Assimilation of Satellite-Based Snow Cover and Freeze/Thaw Observations Over High Mountain Asia." Frontiers in Earth Science 7 [10.3389/feart.2019.00115]

    Jung, H., A. Getirana, K. R. Arsenault, S. V. Kumar, and I. Maigary. 2019. "Improving Surface Soil Moisture Estimates in West Africa through GRACE Data Assimilation." Journal of Hydrology [10.1016/j.jhydrol.2019.05.042]

    Santanello, J. A., P. Lawston, S. Kumar, and E. Dennis. 2019. "Understanding the Impacts of Soil Moisture Initial Conditions on NWP in the Context of Land–Atmosphere Coupling." Journal of Hydrometeorology 20 (5): 793-819 [10.1175/jhm-d-18-0186.1]

    Balsamo, G., A. Agusti-Panareda, C. Albergel, et al. G. Arduini, A. Beljaars, J. Bidlot, N. Bousserez, S. Boussetta, A. Brown, R. Buizza, C. Buontempo, F. Chevallier, M. Choulga, H. Cloke, M. Cronin, M. Dahoui, P. De Rosnay, P. Dirmeyer, M. Dutra, M. Ek, P. Gentine, H. Hewitt, S. Keeley, Y. Kerr, S. Kumar, C. Lupu, J.-F. Mahfouf, J. McNorton, S. Mecklenburg, K. Mogensen, J. Muñoz-Sabater, R. Orth, F. Rabier, R. Reichle, B. Ruston, F. Pappenberger, I. Sandu, S. Seneviratne, S. Tietsche, I. Trigo, R. Uijlenhoet, N. Wedi, R. Woolway, and X. Zeng. 2018. "Satellite and In Situ Observations for Advancing Global Earth Surface Modelling: A Review." Remote Sensing 10 (12): 2038 [10.3390/rs10122038]

    Xia, Y., D. M. Mocko, S. Wang, et al. M. Pan, S. V. Kumar, C. D. Peters-Lidard, H. Wei, D. Wang, and M. B. Ek. 2018. "Comprehensive evaluation of the Variable Infiltration Capacity (VIC) model in the North American Land Data Assimilation System." J. Hydrometeor. 19 (11): 1853-1879 [10.1175/jhm-d-18-0139.1]

    Huang, M., J. H. Crawford, G. S. Diskin, et al. J. A. Santanello, S. V. Kumar, S. E. Pusede, M. Parrington, and G. R. Carmichael. 2018. "Modeling Regional Pollution Transport Events During KORUS-AQ: Progress and Challenges in Improving Representation of Land-Atmosphere Feedbacks." Journal of Geophysical Research: Atmospheres 123 (18): 10,732-10,756 [10.1029/2018jd028554]

    Arsenault, K. R., S. V. Kumar, J. V. Geiger, et al. S. Wang, E. Kemp, D. M. Mocko, H. K. Beaudoing, A. Getirana, M. Navari, B. Li, J. Jacob, J. Wegiel, and C. D. Peters-Lidard. 2018. "The Land surface Data Toolkit (LDT v7.2) – a data fusion environment for land data assimilation systems." Geosci. Model Dev. 11 (9): 3605-3621 [10.5194/gmd-11-3605-2018]

    Nie, W., B. F. Zaitchik, M. Rodell, et al. S. V. Kumar, M. C. Anderson, and C. Hain. 2018. "Groundwater Withdrawals Under Drought: Reconciling GRACE and Land Surface Models in the United States High Plains Aquifer." Water Resources Research 54 [10.1029/2017wr022178]

    Kumar, S. V., T. R. Holmes, D. M. Mocko, S. Wang, and C. D. Peters-Lidard. 2018. "Attribution of flux partitioning variations between land surface models over the continental U.S." Remote Sensing 10 (5): 751 [10.3390/rs10050751]

    Jasinski, M. F., S. V. Kumar, J. S. Borak, et al. D. M. Mocko, C. D. Peters-Lidard, M. Rodell, H. Rui, H. K. Beaudoing, K. R. Arsenault, B. Li, and J. D. Bolten. 2018. "NCA-LDAS Noah-3.3 Land Surface Model L4 Daily 0.125 x 0.125 degree V2.0, Daily Data." Goddard Earth Sciences Data and Information Services Center (GES DISC), Greenbelt, Maryland, USA Version 2.0 [10.5067/7V3N5DO04MAS]

    Lawston, P. M., J. A. Santanello, and S. V. Kumar. 2017. "Irrigation Signals Detected From SMAP Soil Moisture Retrievals." Geophysical Research Letters 44 (23): 11,860-11,867 [10.1002/2017gl075733]

    Kumar, S. V., S. Wang, D. M. Mocko, C. D. Peters-Lidard, and Y. Xia. 2017. "Similarity assessment of land surface model outputs in the North American Land Data Assimilation System (NLDAS)." Water Resour. Res. 53 (11): 8941-8965 [10.1002/2017wr020635]

    Getirana, A., S. V. Kumar, M. Girotto, and M. Rodell. 2017. "Rivers and floodplains as key components of global terrestrial water storage variability." Geophysical Research Letters 44 (20): 10,359-10,368 [10.1002/2017GL074684]

    Kumar, S. V., P. A. Dirmeyer, C. D. Peters-Lidard, R. Bindlish, and J. Bolten. 2017. "Information theoretic evaluation of satellite soil moisture retrievals." Remote Sensing of Environment 204 392-400 [10.1016/j.rse.2017.10.016]

    Jung, H. C., A. Getirana, F. Policelli, et al. A. McNally, K. R. Arsenault, S. Kumar, T. Tadesse, and C. D. Peters-Lidard. 2017. "Upper Blue Nile Basin Water Budget from a Multi-Model Perspective." Journal of Hydrology [10.1016/j.jhydrol.2017.10.040]

    Getirana, A., S. V. Kumar, M. Girotto, and M. Rodell. 2017. "Rivers and floodplains as key components of global terrestrial water storage variability." Geophysical Research Letters 44 (20): 10359-10368 [10.1002/2017GL074684]

    Kumar, S. V., J. Dong, C. D. Peters-Lidard, D. M. Mocko, and B. Gómez. 2017. "Role of forcing uncertainty and background model error characterization in snow data assimilation." Hydrology and Earth System Sciences 21 (6): 2637-2647 [10.5194/hess-21-2637-2017]

    McNally, A., K. Arsenault, S. Kumar, et al. S. Shukla, P. Peterson, S. Wang, C. Funk, C. D. Peters-Lidard, and J. P. Verdin. 2017. "A land data assimilation system for sub-Saharan Africa food and water security applications." Scientific Data 4 170012 [10.1038/sdata.2017.12]

    Kumar, S. V., B. F. Zaitchik, C. D. Peters-Lidard, et al. M. Rodell, R. H. Reichle, B. Li, M. F. Jasinski, D. M. Mocko, A. Getirana, G. J. De Lannoy, M. H. Cosh, C. R. Hain, M. Anderson, K. R. Arsenault, Y. Xia, and M. Ek. 2016. "Assimilation of gridded GRACE terrestrial water storage estimates in the North American Land Data Assimilation System." J. Hydrometeor. 17 (7): 1951-1972 [10.1175/jhm-d-15-0157.1]

    Xia, Y., B. A. Cosgrove, K. E. Mitchell, et al. C. D. Peters-Lidard, M. B. Ek, M. Brewer, D. M. Mocko, S. V. Kumar, H. Wei, J. Meng, and L. Luo. 2016. "Basin-scale assessment of the land surface water budget in the NCEP operational and research NLDAS-2 systems." J. Geophys. Res. Atmos. 121 (6): 2750-2779 [10.1002/2015jd023733]

    Santanello, J. A., S. V. Kumar, C. D. Peters-Lidard, and P. M. Lawston. 2016. "Impact of Soil Moisture Assimilation on Land Surface Model Spinup and Coupled Land-Atmosphere Prediction." Journal of Hydrometeorology 17 517-540 [10.1175/jhm-d-15-0072.1]

    Xia, Y., B. A. Cosgrove, K. E. Mitchell, et al. C. D. Peters-Lidard, M. B. Ek, S. V. Kumar, D. M. Mocko, and H. Wei. 2016. "Basin-scale assessment of the land surface energy budget in the National Centers for Environmental Prediction operational and research NLDAS-2 systems." J. Geophys. Res. Atmos. 121 (1): 196-220 [10.1002/2015jd023889]

    Nearing, G. S., D. M. Mocko, C. D. Peters-Lidard, S. V. Kumar, and Y. Xia. 2016. "Benchmarking NLDAS-2 soil moisture and evapotranspiration to separate uncertainty contributions." J. Hydrometeor. 17 (3): 745-759 [10.1175/jhm-d-15-0063.1]

    Mazrooei, A., T. Sinha, A. Sankarasubramanian, S. V. Kumar, and C. D. Peters-Lidard. 2015. "Decomposition of Sources of Errors in Seasonal Streamflow Forecasting over the US Sunbelt." J. Geophys. Res. Atmos. 120 (23): 11,809–11,825 [10.1002/2015jd023687]

    Tian, Y., C. D. Peters-Lidard, K. W. Harrison, et al. Y. You, S. E. Finn, S. V. Kumar, and J. F. Turk. 2015. "An examination of methods for estimating land surface microwave emissivity." J. Geophys. Res. Atmos. 120 11,114-11,128 [10.1002/2015JD023582]

    Tian, Y., C. D. Peters-Lidard, K. W. Harrison, et al. Y. You, S. Ringerud, S. Kumar, and F. J. Turk. 2015. "An examination of methods for estimating land surface microwave emissivity." J. Geophys. Res. Atmos. 120 (21): 11,114-11,128 [10.1002/2015jd023582]

    Kumar, S. V., C. D. Peters-Lidard, J. A. Santanello, et al. R. H. Reichle, C. S. Draper, R. D. Koster, G. Nearing, and M. F. Jasinski. 2015. "Evaluating the utility of satellite soil moisture retrievals over irrigated areas and the ability of land data assimilation methods to correct for unmodeled processes." Hydrology and Earth System Sciences 19 (11): 4463-4478 [10.5194/hess-19-4463-2015]

    Kumar, S. V., C. D. Peters-Lidard, K. R. Arsenault, et al. A. Getirana, D. M. Mocko, and Y. Liu. 2015. "Quantifying the added value of snow cover area observations in passive microwave snow depth data assimilation." J. Hydrometeor. 16 (4): 1736-1741 [10.1175/JHM-D-15-0021.1]

    Peters-Lidard, C. D., E. M. Kemp, T. Matsui, et al. J. A. Santanello, S. V. Kumar, J. P. Jacob, T. L. Clune, W.-K. Tao, M. Chin, A. Hou, J. L. Case, D. Kim, K.-M. Kim, W. K. Lau, Y. Liu, J. J. Shi, D. O. Starr, Q. Tan, Z. Tao, B. F. Zaitchik, B. Zavodsky, Q. Zhang, and M. Zupanski. 2015. "Integrated modeling of aerosol, cloud, precipitation and land processes at satellite-resolved scales." Environmental Modelling and Software 67 149-159 [Full Text (Link)] [doi:10.1016/j.envsoft.2015.01.007]

    Liu, Y., C. D. Peters-Lidard, S. V. Kumar, K. R. Arsenault, and D. M. Mocko. 2015. "Blending satellite-based snow depth products with in situ observations for streamflow predictions in the Upper Colorado River Basin." Water Resour. Res. 51 (2): 1182-1202 [10.1002/2014WR016606]

    Harrison, K. W., Y. Tian, C. D. Peters-Lidard, S. E. Finn, and S. V. Kumar. 2015. "Calibration to improve forward model simulation of microwave emissivity at GPM frequencies over the U.S. Southern Great Plains." IEEE Trans. Geophys. Remote Sens. 54 (2): [10.1109/TGRS.2015.2474120]

    Kumar, S. V., C. D. Peters-Lidard, J. A. Santanello, et al. R. H. Reichle, C. S. Draper, R. D. Koster, G. S. Nearing, and M. F. Jasinski. 2015. "Evaluating the utility of satellite soil moisture retrievals over irrigated areas and the ability of land data assimilation methods to correct for unmodeled processes." Hydrology and Earth System Sciences Discussions 12 5967 [Full Text (Link)] [10.5194/hessd-12-5967-2015]

    Kumar, S. V., C. D. Peters-Lidard, D. M. Mocko, et al. R. H. Reichle, Y. Liu, K. R. Arsenault, Y. Xia, M. Ek, G. A. Riggs, B. Livneh, and M. Cosh. 2014. "Assimilation of passive microwave-based soil moisture and snow depth retrievals for drought estimation." J. Hydrometeor. 15 (6): 2446-2469 [10.1175/JHM-D-13-0132.1]

    Getirana, A., E. Dutra, M. Guimberteau, et al. J. Kam, H.-Y. Li, B. Decharme, Z. Zhang, A. Ducharne, A. Boone, G. Balsamo, M. Rodell, A. M. Toure, Y. Xue, C. D. Peters-Lidard, S. V. Kumar, K. R. Arsenault, G. Drapeau, L. R. Leung, J. Ronchail, and J. Sheffield. 2014. "Water Balance in the Amazon Basin from a Land Surface Model Ensemble." J. Hydrometeor 15 (6): 2586-2614 [10.1175/JHM-D-14-0068.1]

    Case, J. L., F. J. LaFontaine, J. R. Bell, et al. G. J. Jedlovec, S. V. Kumar, and C. D. Peters-Lidard. 2014. "A Real-Time MODIS Vegetation Product for Land Surface and Numerical Weather Prediction Models." Geoscience and Remote Sensing, IEEE Transactions on 52 (3): 1772 - 1786 [10.1109/TGRS.2013.2255059]

    Kumar, S. V., K. W. Harrison, C. D. Peters-Lidard, J. A. Santanello, and D. B. Kirschbaum. 2014. "Assessing the Impact of L-Band Observations on Drought and Flood Risk Estimation: A Decision-Theoretic Approach in an OSSE Environment." J. Hydrometeor 15 (6): 2140-2156 [Full Text (Link)] [10.1175/JHM-D-13-0204.1]

    Kumar, S. V., C. D. Peters-Lidard, D. M. Mocko, and Y. Tian. 2013. "Multiscale evaluation of the improvements in surface snow simulation through terrain adjustments to radiation." J. Hydrometeor. 14 (1): 220-232 [10.1175/JHM-D-12-046.1]

    Santanello, J., C. D. Peters-Lidard, A. Kennedy, S. Kumar, and S. Zhou. 2013. "Diagnosing the Nature of Land–Atmosphere Coupling: A Case Study of Dry/Wet Extremes in the U.S. Southern Great Plains." J. Hydrometeor. 14 (1): 3-24 [10.1175/JHM-D-12-023.1]

    Santanello, J. A., S. V. Kumar, C. D. Peters-Lidard, K. W. Harrison, and S. Zhou. 2013. "Impact of Land Model Calibration on Coupled Land–Atmosphere Prediction." J. Hydrometeor. 14 (5): 1373-1400 [10.1175/JHM-D-12-0127.1]

    Zaitchik, B. F., J. A. Santanello, S. V. Kumar, and C. D. Peters-Lidard. 2013. "Representation of Soil Moisture Feedbacks during Drought in NASA Unified WRF (NU-WRF)." J. Hydrometeor 14 (1): 360-367 [10.1175/JHM-D-12-069.1]

    Liu, Y., C. D. Peters-Lidard, S. V. Kumar, et al. J. L. Foster, M. J. Shaw, Y. Tian, and F. G. Hall. 2013. "Assimilating satellite-based snow depth and snow cover products for improving snow predictions in Alaska." Advances in Water Resources 54 208-227 [10.1016/j.advwatres.2013.02.005]

    Mohr, K., W. Tao, J. Chern, S. Kumar, and C. Peters-Lidard. 2013. "The NASA-Goddard Multi-scale Modeling Framework–Land Information System: Global land/atmosphere interaction with resolved convection." Environmental Modelling & Software 39 103-115 [10.1016/j.envsoft.2012.02.023]

    Yatheendradas, S., C. D. Peters-Lidard, V. Koren, et al. B. Cosgrive, L. De Goncalves, M. Smith, J. V. Geiger, Z. Cui, J. S. Borak, S. V. Kumar, D. L. Toll, G. A. Riggs, and N. Mizukami. 2012. "Distributed assimilation of satellite-based snow extent for improving simulated streamflow in mountainous, dense forests: An example over the DMIP2 western basins." Water Resour. Res. 48 (9): W09557 [10.1029/2011WR011347]

    De Lannoy, G. J., R. H. Reichle, K. R. Arsenault, et al. P. R. Houser, S. V. Kumar, N. E. Verhoest, and V. R. Pauwels. 2012. "Multiscale assimilation of Advanced Microwave Scanning Radiometer–EOS snow water equivalent and Moderate Resolution Imaging Spectroradiometer snow cover fraction observations in northern Colorado." Water Resour. Res. 48 (1): W01522 [10.1029/2011WR010588]

    Kumar, S., R. Reichle, K. Harrison, et al. C. Peters-Lidard, S. Yatheendradas, and J. Santanello. 2012. "A comparison of methods for a priori bias correction in soil moisture data assimilation." Water Resour. Res. 48 (3): W03515 [10.1029/2010WR010261]

    Hall, D., J. L. Foster, S. Kumar, J. Y. Chien, and G. A. Riggs. 2012. "Improving the accuracy of the AFWA-NASA (ANSA) blended snow-cover product over the Lower Great Lakes region." Hydrology and Earth System Sciences Discussions 9 (1): 1141-1161 [10.5194/hessd-9-1141-2012]

    Kumar, S., C. Peters-Lidard, J. Santanello, et al. K. Harrison, Y. Liu, and M. Shaw. 2012. "Land surface Verification Toolkit (LVT) – a generalized framework for land surface model evaluation." Geosci. Model Dev. 5 (3): 869-886 [10.5194/gmd-5-869-2012]

    Crow, W. T., S. V. Kumar, and J. D. Bolten. 2012. "On the utility of land surface models for agricultural drought monitoring." Hydrology and Earth System Sciences 16 (9): 3451-3460 [10.5194/hess-16-3451-2012]

    Harrison, K., S. V. Kumar, C. D. Peters-Lidard, and J. A. Santanello. 2012. "Quantifying the change in soil moisture modeling uncertainty from remote sensing observations using Bayesian inference techniques." Water Resour. Res. 48 (11): W11514 [10.1029/2012WR012337]

    Veenadhari, B., R. Selvakumaran, R. Singh, et al. A. Maurya, N. Gopalswamy, S. Kumar, and T. Kikuchi. 2012. "Coronal mass ejection–driven shocks and the associated sudden commencements/sudden impulses." J. Geophys. Res. 117 (A4): A04210 [10.1029/2011JA017216]

    Peters-Lidard, C. D., S. V. Kumar, D. M. Mocko, and Y. Tian. 2011. "Estimating evapotranspiration with land data assimilation systems." Hydrological Processes 25 (26): 3979-3992 [10.1002/hyp.8387]

    Kirschbaum, D. B., R. F. Adler, Y. Hong, S. V. Kumar, and C. D. Peters-Lidard. 2011. "Advances in landslide nowcasting: evaluation of a global and regional modeling approach." Environmental Earth Sciences 66 (6): 1683-1696 [10.1007/s12665-011-0990-3]

    Santanello, J. A., C. D. Peters-Lidard, and S. V. Kumar. 2011. "Diagnosing the Sensitivity of Local Land–Atmosphere Coupling via the Soil Moisture–Boundary Layer Interaction." J. Hydrometeor 12 (5): 766-786 [10.1175/JHM-D-10-05014.1]

    Reichle, R. H., S. V. Kumar, S. P. Mahanama, R. D. Koster, and Q. Liu. 2010. "Assimilation of Satellite-Derived Skin Temperature Observations into Land Surface Models." J. Hydrometeor 11 (5): 1103-1122 [10.1175/2010JHM1262.1]

    Tian, Y., J. V. Geiger, H. Su, S. Kumar, and P. R. Houser. 2010. "Middleware-Based Sensor Web Integration." IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing 3 (4): 467-472 [10.1109/JSTARS.2010.2049732]

    Hall, D. K., G. A. Riggs, J. L. Foster, and S. V. Kumar. 2010. "Development and evaluation of a cloud-gap-filled MODIS daily snow-cover product." Remote Sens Environ 114 (3): 496-503 [10.1016/j.rse.2009.10.007]

    Kumar, S., R. H. Reichle, R. D. Koster, W. T. Crow, and C. Peters-Lidard. 2009. "Role of Subsurface Physics in the Assimilation of Surface Soil Moisture Observations." J. Hydrometeor 10 (6): 1534-1547 [10.1175/2009JHM1134.1]

    Kumar, S. V., R. H. Reichle, C. D. Peters-Lidard, et al. R. D. Koster, X. Zhan, W. T. Crow, J. B. Eylander, and P. R. Houser. 2008. "A land surface data assimilation framework using the land information system: Description and applications." Advances in Water Resources 31 (11): 1419-1432 [10.1016/j.advwatres.2008.01.013]

    Case, J., W. Crosson, S. V. Kumar, W. Lapenta, and C. Peters-Lidard. 2008. "Impacts of High-Resolution Land Surface Initialization on Regional Sensible Weather Forecasts from the WRF Model." J Hydrometeorol. 9 (6): 1249-1266 [10.1175/2008JHM990.1]

    Kumar, S. V., C. Peters-Lidard, J. Eastman, and W. Tao. 2008. "An integrated high-resolution hydrometeorological modeling testbed using LIS and WRF." Environmental Modelling & Software 23 (2): 169-181 [10.1016/j.envsoft.2007.05.012]

    Kumar, S. V., C. Peters-Lidard, Y. Tian, et al. R. Reichle, J. Geiger, C. Alonge, J. Eylander, and P. Houser. 2008. "An Integrated Hydrologic Modeling and Data Assimilation Framework." Computer 41 (12): 52-59 [10.1109/MC.2008.475]

    Tian, Y., C. Peters-Lidard, S. V. Kumar, et al. J. Geiger, P. Houser, J. Eastman, P. Dirmeyer, B. Doty, and J. Adams. 2008. "High-performance land surface modeling with a Linux cluster." Computers & Geosciences 34 (11): 1492-1504 [10.1016/j.cageo.2007.12.014]

    Peters-Lidard, C. D., P. R. Houser, Y. Tian, et al. S. V. Kumar, J. Geiger, S. Olden, L. Lighty, B. Doty, P. Dirmeyer, J. Adams, K. Mitchell, E. F. Wood, and J. Sheffield. 2007. "High-performance Earth system modeling with NASA/GSFC’s Land Information System." Innovations in Systems and Software Engineering 3 (3): 157-165 [10.1007/s11334-007-0028-x]

    Tischler, M., M. Garcia, C. D. Peters-Lidard, et al. M. Moran, S. Miller, D. Thoma, S. V. Kumar, and J. Geiger. 2007. "A GIS framework for surface-layer soil moisture estimation combining satellite radar measurements and land surface modeling with soil physical property estimation." Environmental Modelling & Software 22 (6): 891-898 [10.1016/j.envsoft.2006.05.022]

    Zeng, X., W.-K. Tao, M. Zhang, et al. C. Peters-Lidard, S. E. Lang, J. Simpson, S. Kumar, S. Xie, J. Eastman, C.-L. Shie, and J. Geiger. 2007. "Evaluating Clouds in Long-Term Cloud-Resolving Model Simulations with Observational Data." J Atmos Sci 64 4153-4329

    Kumar, S. V., Y. Tian, C. Peters-Lidard, et al. P. Houser, J. Geiger, S. Olden, L. Lighty, J. Eastman, B. Doty, P. Dirmeyer, J. Adams, K. Mitchell, E. Wood, and J. Sheffield. 2006. "Land information system: An interoperable framework for high resolution land surface modeling." Environ Modelling Software 21 1402-1415

    Non-Refereed

    Kim, E., B. A. Forman, L. Wang, et al. J. Lemoigne-Stewart, S. Nag, S. Kumar, C. Vuyovich, B. Blair, and M. Hofton. 2019. "Space-Time Coverage Scenarios for A Global Snow Satellite Constellation." IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Yokohama, Japan, 28 July - 2 August 2019 [10.1109/igarss.2019.8899017]

    Doorn, B., M. F. Jasinski, J. Reager, et al. M. Srinivasan, S. Bettadpur, J. D. Bolten, M. Brown, F. Flechtner, E. Ivins, S. V. Kumar, F. Landerer, P. Morton, F. S. Policelli, M. Rodell, L. Tsaoussi, and F. Webb. 2016. "Applications Plan for the Gravity Recovery And Climate Experiment (GRACE) Missions: GRACE, GRACE-FO, and Future Missions." GRACE Tellus 15 [Full Text (Link)]

    Peters-Lidard, C. D., J. B. Eylander, R. D. Koster, et al. B. Narapusetty, S. V. Kumar, M. Rodell, J. D. Bolten, D. M. Mocko, G. K. Walker, K. R. Arsenault, and S. W. Rheingrover. 2014. "Drought Prediction for Socio-Cultural Stability Project." NASA/TM-2014-218303 [Full Text (Link)]

    Tian, Y., C. D. Peters-Lidard, K. W. Harrison, S. V. Kumar, and S. Ringerud. 2014. "Land surface microwave emissivity dynamics: Observations, analysis and modeling ." Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2014 13th Specialist Meeting on 99 - 102 [10.1109/MicroRad.2014.6878917]

    Tao, W.-K., D. Anderson, R. Atlas, et al. J.-D. Chern, P. Houser, A. Y. Hou, S. E. Lang, W. K. Lau, C. D. Peters-Lidard, R. Kakar, S. V. Kumar, W. Lapenta, X. Li, T. Matsui, M. M. Rienecker, B.-W. Shen, J. J. Shi, J. Simpson, and X. Zeng. 2008. "A Goddard multi-scale modeling system with unified physics." GEWEX News 18 (1): 6-8 [Full Text (Link)]

    Tian, Y., P. R. Houser, H. Su, S. V. Kumar, and J. V. Geiger Jr. 2008. "Integrating sensor webs with modeling and data-assimilation applications: An SOA implementation." Proc IEEE Aerospace Conf 1 - 7 [10.1109/AERO.2008.4526452]

    Pinheiro, T. A., K. Arsenault, P. Houser, et al. D. Toll, S. V. Kumar, D. Matthews, and R. W. Stodt. 2004. "Improved evapotranspiration estimates to aid water management practices in the Rio Grande river basin." Proc IGARSS 2004 3 2123-2126

                                                                                                                                                                                            
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