Eunsang Cho

Eunsang Cho

  • POST-DOCTORAL RESEARCH
  • 603.501.8377
  • NASA/GSFC
  • Mail Code: 617
  • COLLEGE PARK , MD 207420001
  • Employer: UNIVERSITY OF MARYLAND
  • Brief Bio

    Eunsang is a hydrologist who focuses on accurate and timely estimations and predictions of critical hydrologic fluxes, storages, and processes for enhanced water resources management, flood prediction, and infrastructure design. For this, He use field observations, multiple remote sensing techniques (active and passive microwave, infrared, thermal, and gamma radiation via UAS, aircraft, and satellite platforms), and land surface and regional climate model simulations along with big-data analytics. He is currently working with Carrie Vuyovich and Sujay Kumar for the Snow Ensemble Uncertainty Project (SEUP) and upcoming SnowEx campaigns for future snow satellite mission. Prior to joining in NASA GSFC, he worked as a postdoctoral researcher at University of New Hampshire, where I obtained a Ph.D. in Civil and Environmental Engineering. 

    Research Interests

    Science Areas

    • Terrestrial hydrology, Flood events, Snow processes (Snow, Soil moisture, Snowmelt, Freeze/thaw)
    • Human impacts (drainage system, irrigation, LULC) on water resources management
    • Climate change impacts on hydrological extreme events 

    Methods/Techniques

    • Remote sensing (Satellite Microwave, Gamma Radiation, Unmanned Aerial Systems, LiDAR, SfM)
    • Land surface modeling & Regional climate modeling
    • Data assimilation, Machine Learning, Google Earth Engine

    Positions/Employment

    8/2020 - Present

    Postdoctoral Research Scientist

    NASA GSFC / Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD
    • Works on the Snow Ensemble Uncertainty Project (SEUP) to quantify snowpack and its error characteristics and to predict snowmelt-driven streamflow estimations using mutiple land surface models (Noah-MP, Catchment, Noah, and JULES) with meteorological forcings and the HyMAP routing model via NASA Land Information System (LIS).
    • Conducts research to develop an observing system simulation experiment (OSSE) with data assimilation and to assess the potential benefits of various remotely sensed observations on snow estimation and end-use applications.
    • Helps to organize and conduct the NASA Snow Experiment (SnowEx) 2020/21 field campaigns for future satellite missions.
    5/2020 - 8/2020

    Postdoctoral Associate

    University of New Hampshire, Durham, NH

    Funded by U.S. Department of Defense (DoD) Broad Agency Announcement Grant (Project: Cold Regions Operations and Assessment Research)

    • Estimates high-resolution snow depth measurements from the Unmanned Aerial Systems (UAS)-based LiDAR system
    • Conducts field work to collect snow depth and snow water equivalent observations for validation
    • Analyzes the Maximum Entropy (Maxent) modeling to characterize spatial variability of snow depth and identify dominant physical drivers to determine the snow variations

    Education

    Ph.D., Civil and Environmental Engineering, University of New Hampshire, USA, 2020

    • Title: Human and Climate Impacts on Flooding via Remote Sensing, Big Data Analytics, and Modeling

    M.S., Civil and Environmental Engineering, Hanyang University, Seoul, South Korea, 2014

    • Title: Evaluation of Satellite-based Soil Moisture from Active and Passive Microwave Sensors in northeast Asia

    B.S., Civil and Environmental Engineering, Hanyang University, Seoul, South Korea, 2010

    Selected Publications

    Refereed

    Cho, E., and J. M. Jacobs. 2020. "Extreme Value Snow Water Equivalent and Snowmelt for Infrastructure Design Over the Contiguous United States." Water Resources Research, 56 (10): [10.1029/2020wr028126]

    Forgotson, C., P. E. O'Neill, M. L. Carrera, et al. S. Belair, N. N. Das, I. E. Mladenova, J. D. Bolten, J. M. Jacobs, E. Cho, and V. M. Escobar. 2020. "How Satellite Soil Moisture Data Can Help to Monitor the Impacts of Climate Change: SMAP Case Studies." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 13: 1590-1596 [10.1109/jstars.2020.2982608]

    Cho, E., J. M. Jacobs, R. Schroeder, S. E. Tuttle, and C. Olheiser. 2020. "Improvement of operational airborne gamma radiation snow water equivalent estimates using SMAP soil moisture." Remote Sensing of Environment, 240: 111668 [10.1016/j.rse.2020.111668]

    Jacobs, J. M., A. G. Hunsaker, F. B. Sullivan, et al. M. Palace, E. A. Burakowski, C. Herrick, and E. Cho. 2020. "Shallow snow depth mapping with unmanned aerial systems lidar observations: A case study in Durham, New Hampshire, United States." (Submitted) [10.5194/tc-2020-37]

    Kraatz, S., J. M. Jacobs, R. Schröder, et al. E. Cho, H. J. Miller, and C. M. Vuyovich. 2020. "Improving SMAP freeze-thaw retrievals for pavements using effective soil temperature from GEOS-5: Evaluation against in situ road temperature data over the U.S." Remote Sensing of Environment, 237: 111545 [10.1016/j.rse.2019.111545]

    Cho, E., J. M. Jacobs, and C. M. Vuyovich. 2020. "The Value of Long‐Term (40 years) Airborne Gamma Radiation SWE Record for Evaluating Three Observation‐Based Gridded SWE Data Sets by Seasonal Snow and Land Cover Classifications." Water Resources Research, 56 (1): [10.1029/2019wr025813]

    Cho, E., J. M. Jacobs, X. Jia, and S. Kraatz. 2019. "Identifying Subsurface Drainage using Satellite Big Data and Machine Learning via Google Earth Engine." Water Resources Research, 55 (10): 8028-8045 [10.1029/2019wr024892]

    Schroeder, R., J. M. Jacobs, E. Cho, et al. C. M. Olheiser, M. M. DeWeese, B. A. Connelly, M. H. Cosh, X. Jia, C. M. Vuyovich, and S. E. Tuttle. 2019. "Comparison of Satellite Passive Microwave With Modeled Snow Water Equivalent Estimates in the Red River of the North Basin." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 12 (9): 3233-3246 [10.1109/jstars.2019.2926058]

    Kraatz, S., J. Jacobs, R. Schröder, et al. E. Cho, M. Cosh, M. Seyfried, J. Prueger, and S. Livingston. 2018. "Evaluation of SMAP Freeze/Thaw Retrieval Accuracy at Core Validation Sites in the Contiguous United States." Remote Sensing, 10 (9): 1483 [10.3390/rs10091483]

    Tuttle, S. E., J. M. Jacobs, C. M. Vuyovich, C. Olheiser, and E. Cho. 2018. "Intercomparison of snow water equivalent observations in the Northern Great Plains." Hydrological Processes, 32 (6): 817-829 [10.1002/hyp.11459]

    Cho, E., C.-H. Su, D. Ryu, H. Kim, and M. Choi. 2017. "Does AMSR2 produce better soil moisture retrievals than AMSR-E over Australia?" Remote Sensing of Environment, 188: 95-105 [10.1016/j.rse.2016.10.050]

    Kim, H., M. Zohaib, E. Cho, Y. H. Kerr, and M. Choi. 2017. "Development and Assessment of the Sand Dust Prediction Model by Utilizing Microwave-Based Satellite Soil Moisture and Reanalysis Datasets in East Asian Desert Areas." Advances in Meteorology, 2017: 1-13 [10.1155/2017/1917372]

    Tuttle, S. E., E. Cho, P. J. Restrepo, et al. X. Jia, C. M. Vuyovich, M. H. Cosh, and J. M. Jacobs. 2016. "Remote Sensing of Drivers of Spring Snowmelt Flooding in the North Central U.S.." Remote Sensing of Hydrological Extremes, 21-45 [10.1007/978-3-319-43744-6_2]

    Cho, E., A. Zhang, and M. Choi. 2016. "The Seasonal Difference in Soil Moisture Patterns Considering the Meteorological Variables Throughout the Korean Peninsula." Terrestrial, Atmospheric and Oceanic Sciences, 27 (6): 907-920 [10.3319/tao.2016.07.12.01]

    Cho, E., M. Choi, and W. Wagner. 2015. "An assessment of remotely sensed surface and root zone soil moisture through active and passive sensors in northeast Asia." Remote Sensing of Environment, 160: 166-179 [10.1016/j.rse.2015.01.013]

    Cho, E., H. Moon, and M. Choi. 2015. "First Assessment of the Advanced Microwave Scanning Radiometer 2 (AMSR2) Soil Moisture Contents in Northeast Asia." Journal of the Meteorological Society of Japan. Ser. II, 93 (1): 117-129 [10.2151/jmsj.2015-008]

    Cho, E., and M. Choi. 2014. "Regional scale spatio-temporal variability of soil moisture and its relationship with meteorological factors over the Korean peninsula." Journal of Hydrology, 516: 317-329 [10.1016/j.jhydrol.2013.12.053]

    Professional Societies

    American Geophysical Union, 2013 - Present
    American Meteorological Society, 2019 - Present
    European Geosciences Union, 2020 - Present
    Young Earth System Scientists (YESS) Community, 2019 - Present

    Professional Service

    Reviewer for

    • Journal of Geophysical Research-Atmosphere
    • Journal of Hydrology
    • Remote Sensing of Environment
    • Remote Sensing
    • Int. J. Appl. Earth Observation & Geoinformation
    • International Journal of Climatology
    • Journal of Environmental Radioactivity

    Awards

    • CUAHSI Pathfinder Fellowship (NSF Award No 1849458) (2020)
    • UNH Dissertation Year Fellowship (2019 – 2020)
    • UNH Summer TA Fellowship (2018)
    • UNH College of Engineering and Physical Sciences (CEPS) Fellowship (2015-2016)
    • 1st Paper Presentation Award, Chuncheon Global Water Forum (2013)
    • Excellent Paper Award in 2013, Korea Water Resources Association Annual Conference (2013)
    • Brain Korea21 PLUS (BK21+) Fellowship (2013 - 2014)
    • Brain Korea21 (BK21) Fellowship (2012)

    Teaching Experience

    • Lab Instructor, Course: Fluid Mechanics, Department of Civil and Environmental Engineering, University of New Hampshire (2017-2018)
    • Lab Instructor, Course: Geographic Information System, Department of Civil and Environmental Engineering, Hanyang University, South Korea (2013)
    • Teaching Assistant, Hydrology & Water Resources Engineering, Department of Civil and Environmental Engineering, Hanyang University, South Korea (2012-2013)

    Special Experience

    • Visiting Student, NASA GSFC, Hydrological Science Laboratory, Greenbelt, MD, Supervisor: Drs. Sujay Kumar and Carrie Vuyovich
    • Participant, CUAHSI-iSWGR Snow Measurement Field School, Yellowstone Alliance Adventure, Bozeman, MT, Instructors: Drs. Matthew Sturm, Kelly Elder, and Jessica Lundquist et al.
    • Participant, NASA Land Information System Workshop, GSFC, MD. Instructors: Dr. Sujay Kumar et al.
    • Participant, CUAHSI Training Workshop: The Community WRF-Hydro Modeling System, NCAR, Boulder, CO, Instructors: Dr. D. Gochis, K. Sampson, A. Dugger
    • Volunteer Participant, Soil Moisture Active Passive Validation Experiment 2016 (SMAPVEX16) field campaign, Des
    • Moines, IA, Supervisor: Dr. Michael Cosh

    Talks, Presentations and Posters

    Invited

    The value of long-term (40 years) airborne gamma radiation SWE record: Evaluating CONUS SWE datasets by seasonal snow and land cover classifications

    12 / 2019

    2019 AGU Fall Meeting. San Francisco, December 2019. Session “Remote Sensing of the Cryosphere: Seasonal Snow”

    The rediscovery of the value of 40-years airborne gamma radiation SWE

    6 / 2020

    Snow International (SINTER) 1st Quarterly Meeting, June 2020, Hosted by Dr. Chris Derksen on behalf of SINTER executive team

    Design Extreme Snowpack and Snowmelt for Infrastructure Design our the U.S.

    10 / 2020

    Global Infrastructure and Climate Network (ICNet) Webinar


    Brief Bio

    Eunsang is a hydrologist who focuses on accurate and timely estimations and predictions of critical hydrologic fluxes, storages, and processes for enhanced water resources management, flood prediction, and infrastructure design. For this, He use field observations, multiple remote sensing techniques (active and passive microwave, infrared, thermal, and gamma radiation via UAS, aircraft, and satellite platforms), and land surface and regional climate model simulations along with big-data analytics. He is currently working with Carrie Vuyovich and Sujay Kumar for the Snow Ensemble Uncertainty Project (SEUP) and upcoming SnowEx campaigns for future snow satellite mission. Prior to joining in NASA GSFC, he worked as a postdoctoral researcher at University of New Hampshire, where I obtained a Ph.D. in Civil and Environmental Engineering. 

    Selected Publications

    Refereed

    Cho, E., and J. M. Jacobs. 2020. "Extreme Value Snow Water Equivalent and Snowmelt for Infrastructure Design Over the Contiguous United States." Water Resources Research 56 (10): [10.1029/2020wr028126]

    Forgotson, C., P. E. O'Neill, M. L. Carrera, et al. S. Belair, N. N. Das, I. E. Mladenova, J. D. Bolten, J. M. Jacobs, E. Cho, and V. M. Escobar. 2020. "How Satellite Soil Moisture Data Can Help to Monitor the Impacts of Climate Change: SMAP Case Studies." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 13 1590-1596 [10.1109/jstars.2020.2982608]

    Cho, E., J. M. Jacobs, R. Schroeder, S. E. Tuttle, and C. Olheiser. 2020. "Improvement of operational airborne gamma radiation snow water equivalent estimates using SMAP soil moisture." Remote Sensing of Environment 240 111668 [10.1016/j.rse.2020.111668]

    Jacobs, J. M., A. G. Hunsaker, F. B. Sullivan, et al. M. Palace, E. A. Burakowski, C. Herrick, and E. Cho. 2020. "Shallow snow depth mapping with unmanned aerial systems lidar observations: A case study in Durham, New Hampshire, United States." (Submitted) [10.5194/tc-2020-37]

    Kraatz, S., J. M. Jacobs, R. Schröder, et al. E. Cho, H. J. Miller, and C. M. Vuyovich. 2020. "Improving SMAP freeze-thaw retrievals for pavements using effective soil temperature from GEOS-5: Evaluation against in situ road temperature data over the U.S." Remote Sensing of Environment 237 111545 [10.1016/j.rse.2019.111545]

    Cho, E., J. M. Jacobs, and C. M. Vuyovich. 2020. "The Value of Long‐Term (40 years) Airborne Gamma Radiation SWE Record for Evaluating Three Observation‐Based Gridded SWE Data Sets by Seasonal Snow and Land Cover Classifications." Water Resources Research 56 (1): [10.1029/2019wr025813]

    Cho, E., J. M. Jacobs, X. Jia, and S. Kraatz. 2019. "Identifying Subsurface Drainage using Satellite Big Data and Machine Learning via Google Earth Engine." Water Resources Research 55 (10): 8028-8045 [10.1029/2019wr024892]

    Schroeder, R., J. M. Jacobs, E. Cho, et al. C. M. Olheiser, M. M. DeWeese, B. A. Connelly, M. H. Cosh, X. Jia, C. M. Vuyovich, and S. E. Tuttle. 2019. "Comparison of Satellite Passive Microwave With Modeled Snow Water Equivalent Estimates in the Red River of the North Basin." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 12 (9): 3233-3246 [10.1109/jstars.2019.2926058]

    Kraatz, S., J. Jacobs, R. Schröder, et al. E. Cho, M. Cosh, M. Seyfried, J. Prueger, and S. Livingston. 2018. "Evaluation of SMAP Freeze/Thaw Retrieval Accuracy at Core Validation Sites in the Contiguous United States." Remote Sensing 10 (9): 1483 [10.3390/rs10091483]

    Tuttle, S. E., J. M. Jacobs, C. M. Vuyovich, C. Olheiser, and E. Cho. 2018. "Intercomparison of snow water equivalent observations in the Northern Great Plains." Hydrological Processes 32 (6): 817-829 [10.1002/hyp.11459]

    Cho, E., C.-H. Su, D. Ryu, H. Kim, and M. Choi. 2017. "Does AMSR2 produce better soil moisture retrievals than AMSR-E over Australia?" Remote Sensing of Environment 188 95-105 [10.1016/j.rse.2016.10.050]

    Kim, H., M. Zohaib, E. Cho, Y. H. Kerr, and M. Choi. 2017. "Development and Assessment of the Sand Dust Prediction Model by Utilizing Microwave-Based Satellite Soil Moisture and Reanalysis Datasets in East Asian Desert Areas." Advances in Meteorology 2017 1-13 [10.1155/2017/1917372]

    Tuttle, S. E., E. Cho, P. J. Restrepo, et al. X. Jia, C. M. Vuyovich, M. H. Cosh, and J. M. Jacobs. 2016. "Remote Sensing of Drivers of Spring Snowmelt Flooding in the North Central U.S.." Remote Sensing of Hydrological Extremes 21-45 [10.1007/978-3-319-43744-6_2]

    Cho, E., A. Zhang, and M. Choi. 2016. "The Seasonal Difference in Soil Moisture Patterns Considering the Meteorological Variables Throughout the Korean Peninsula." Terrestrial, Atmospheric and Oceanic Sciences 27 (6): 907-920 [10.3319/tao.2016.07.12.01]

    Cho, E., M. Choi, and W. Wagner. 2015. "An assessment of remotely sensed surface and root zone soil moisture through active and passive sensors in northeast Asia." Remote Sensing of Environment 160 166-179 [10.1016/j.rse.2015.01.013]

    Cho, E., H. Moon, and M. Choi. 2015. "First Assessment of the Advanced Microwave Scanning Radiometer 2 (AMSR2) Soil Moisture Contents in Northeast Asia." Journal of the Meteorological Society of Japan. Ser. II 93 (1): 117-129 [10.2151/jmsj.2015-008]

    Cho, E., and M. Choi. 2014. "Regional scale spatio-temporal variability of soil moisture and its relationship with meteorological factors over the Korean peninsula." Journal of Hydrology 516 317-329 [10.1016/j.jhydrol.2013.12.053]

                                                                                                                                                                                            
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