Robert C Levy

Robert C Levy

  • RSCH AST, CLIMATE AND RADIATION STD
  • 301.614.6123
  • NASA/GSFC
  • Mail Code: 613
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Dr. Robert Levy has been a Research Physical Scientist in the Climate and Radiation Laboratory (CRL) since 2013. Dr. Levy is focused on retrieving global aerosol properties from satellite observations, and using the retrieved products for quantifying the role of aerosols in climate and air quality.  He is responsible for maintaining the "dark-target" aerosol retrieval for MODIS, and applying it to VIIRS and other sensors (AHI and ABI) to create a long-term global aerosol record and characterize the aerosol diurnal cycle. Dr. Levy’s research has ranged from applications of new algorithm development, monitoring surface air quality, aerosol/cloud interactions and aerosol trends. His publication list and citation metrics can be found at ResearcherID.
     

    Current Projects

    GOES-R Flight Deputy Project Scientist

    The Geostationary Operational Environmental Satellite (GOES) – R Series is the nation’s most advanced fleet of geostationary weather satellites. The GOES-R Series provide advanced imaging with high spatial resolution and fast coverage to ensure accurate forecasts, real-time mapping of lightning activity, and improved monitoring of solar activity and space weather. The GOES-R Series is a four-satellite program (GOES-R/S/T/U) that will extend the availability of the operational GOES satellite system through 2036. As deputy project scientist, I help to ensure that the flight hardware is meeting all operational and scientific requirements.

    Adding high temporal resolution to the global long-term aerosol data record: A synergy of LEO and GEO

    What is the diurnal cycle of aerosol optical depth? Here, we are adapting the dark-target (DT) aerosol retrieval to the new generation of imagers in geostationary (GEO) orbit.  So far, these include the Advanced Baseline Imagers (ABI) on GOES-16 and GOES-17, as well as the Advanced Himawari Imager (AHI) on Japan's Himawari-8.  Once we have retrievals from the GEO imagers, we can add them into the long-term global record.  This project is supported by MEaSUREs-2017 (Making Earth Science data Records for Use in Research Environments). 

    Maintenance of the MODIS Dark-Target Aerosol Retrieval Algorithm and Products

    This "Senior Review" funded project is to maintain MODIS dark-target aerosol products from both Terra and Aqua platforms. Primary tasks include continued validation and evaluation of the product, assisting users, and fixing problems if needed.

    Can Citizen Science and Low-Cost Sensors Help Improve Earth System Data: Implications to Current and Next Generation of Space-Based Air Quality

    I am Co-I on this NASA-funded (CSESP = Citizen Science for Earth Systems) project to bring low-cost citizen science into the air quality research community.  The goals of this project include A) introduce citizen scientists to the science of aerosol monitoring, B) create and deploy low-cost air quality sensors in three networks around the world, C) connect the ground-based datasets with satellite retrievals. D) provide training and feedback to the citizen scientists.  This project is funded by

    Education

    2007: Ph.D, Dept. of Atmospheric and Ocean Sciencies, University of Maryland-College Park, College Park, Maryland USA

    1996: M.S., Dept. of Atmospheric Science, Colorado State University, Fort Collins, Colorado, USA

    1994: B.A., Dept. of Mathematics, Oberlin College, Oberlin, Ohio USA

    Professional Service

    2011-present: Member of MODIS Science Team
    2012-present: Member of VIIRS Science Team
    2010-present:  Associate Editor for Journal of Geophysical Research - Atmospheres
    2009-2011:  GSFC AeroCenter committee (including chair in 2011)

    Awards

    8/2012: Young Scientist Award from the International Radiation Commission.
    1/2011: Best First Authored Paper Award, NASA-GSFC Climate and Radiation Branch
    1/2009: Outstanding Scientific Leadership Award, NASA-GSFC Climate and Radiation Branch
    2006: Outstanding Performance Award, NASA-GSFC Laboratory for Atmospheres
    2005: Outstanding Teamwork Award, NASA-GSFC
    7/2002: NCAR's Advanced Study Program, Colloquium on "Aerosols, Climate and the Hydrological Cycle"
    12/2002: Outstanding Scientific Support Award, NASA-GSFC Climate and Radiation Branch

    Publications

    Refereed

    Zhou, Y., K. Nelson, K. I. Mohr, et al. G. J. Huffman, R. C. Levy, and M. Grecu. 2019. "A spatial‐temporal extreme precipitation database from GPM IMERG." Journal of Geophysical Research: Atmospheres, 2019JD030449 (In Press) [10.1029/2019jd030449]

    Yu, H., Q. Tan, M. Chin, et al. L. A. Remer, R. A. Kahn, H. Bian, D. Kim, Z. Zhang, T. L. Yuan, A. H. Omar, D. M. Winker, R. C. Levy, O. Kalashnikova, L. Crepeau, V. Capelle, and A. Chédin. 2019. "Estimates of African Dust Deposition Along the Trans‐Atlantic Transit Using the Decadelong Record of Aerosol Measurements from CALIOP, MODIS, MISR, and IASI." Journal of Geophysical Research: Atmospheres, 124 (14): 7975-7996 [10.1029/2019jd030574]

    Remer, L. A., K. Knobelspiesse, P.-W. Zhai, et al. F. Xu, O. V. Kalashnikova, J. Chowdhary, O. Hasekamp, O. Dubovik, L. Wu, Z. Ahmad, E. Boss, B. Cairns, O. Coddington, A. B. Davis, H. M. Dierssen, D. J. Diner, B. Franz, R. Frouin, B.-C. Gao, A. Ibrahim, R. C. Levy, J. V. Martins, A. H. Omar, and O. Torres. 2019. "Retrieving Aerosol Characteristics From the PACE Mission, Part 2: Multi-Angle and Polarimetry." Frontiers in Environmental Science, 7: [10.3389/fenvs.2019.00094]

    Remer, L. A., A. B. Davis, S. Mattoo, et al. R. C. Levy, O. V. Kalashnikova, O. Coddington, J. Chowdhary, K. Knobelspiesse, X. Xu, Z. Ahmad, E. Boss, B. Cairns, H. M. Dierssen, D. J. Diner, B. Franz, R. Frouin, B.-C. Gao, A. Ibrahim, J. V. Martins, A. H. Omar, O. Torres, F. Xu, and P.-W. Zhai. 2019. "Retrieving Aerosol Characteristics From the PACE Mission, Part 1: Ocean Color Instrument." Frontiers in Earth Science, 7: [10.3389/feart.2019.00152]

    Espinosa, W. R., J. V. Martins, L. A. Remer, et al. O. Dubovik, L. Tatyana, F. David, A. Puthukkudy, F. D. Orozco, L. Ziemba, K. L. Thornhill, and R. C. Levy. 2019. "Retrievals of aerosol size distribution, spherical fraction and complex refractive index from airborne in situ angular light scattering and absorption measurements." Journal of Geophysical Research: Atmospheres, 124 (14): 7997-8024 [ https://doi.org/10.1029/2018JD030009]

    Spencer, R. S., R. C. Levy, L. A. Remer, et al. S. Mattoo, G. T. Arnold, D. L. Hlavka, K. G. Meyer, A. Marshak, E. M. Wilcox, and S. E. Platnick. 2019. "Exploring aerosols near clouds with high-spatial-resolution aircraft remote sensing during SEAC4RS." Journal of Geophysical Research: Atmospheres, [10.1029/2018jd028989]

    Shi, Y. R., R. C. Levy, T. F. Eck, et al. B. Fisher, S. Mattoo, L. A. Remer, I. Slutsker, and J. Zhang. 2019. "Characterizing the 2015 Indonesia fire event using modified MODIS aerosol retrievals." Atmospheric Chemistry and Physics, 19 (1): 259-274 [10.5194/acp-19-259-2019]

    Levy, R. C., S. Mattoo, V. Sawyer, et al. Y. Shi, P. R. Colarco, A. I. Lyapustin, Y. Wang, and L. A. Remer. 2018. "Exploring systematic offsets between aerosol products from the two MODIS sensors." Atmospheric Measurement Techniques, 11: 4073-4092 [https://doi.org/10.5194/amt-11-4073-2018]

    Gupta, P., P. Doraiswamy, R. Levy, et al. O. Pikelnaya, J. Maibach, B. Feenstra, A. Polidori, F. Kiros, and K. C. Mills. 2018. "Impact of California Fires on Local and Regional Air Quality: The Role of a Low-Cost Sensor Network and Satellite Observations." GeoHealth, [10.1029/2018gh000136]

    Patadia, F., R. Levy, and S. Mattoo. 2018. "Correcting for trace gas absorption when retrieving aerosol optical depth from satellite observations of reflected shortwave radiation." Atmospheric Measurement Techniques, 11: 3205-3219 [https://doi.org/10.5194/amt-11-3205-2018]

    Gupta, P., L. A. Remer, R. C. Levy, and S. Mattoo. 2018. "Validation of MODIS 3 km land aerosol optical depth from NASA's EOS Terra and Aqua missions." Atmospheric Measurement Techniques, 11 (5): 3145-3159 [10.5194/amt-11-3145-2018]

    Eck, T. F., B. N. Holben, J. S. Reid, et al. P. Xian, D. M. Giles, A. Sinyuk, A. Smirnov, J. S. Schafer, I. Slutsker, J. Kim, J.-H. Koo, M. Choi, K. C. Kim, I. Sano, A. Arola, A. M. Sayer, R. C. Levy, L. A. Munchak, N. T. O’Neill, A. Lyapustin, N. C. Hsu, C. A. Randles, A. M. Da Silva, V. Buchard, R. C. Govindaraju, E. Hyer, J. H. Crawford, P. Wang, and X. Xia. 2018. "Observations of the Interaction and Transport of Fine Mode Aerosols with Cloud and/or Fog in Northeast Asia from Aerosol Robotic Network (AERONET) and Satellite Remote Sensing." Journal of Geophysical Research: Atmospheres, [10.1029/2018jd028313]

    Lipponen, A., T. Mielonen, M. R. Pitkänen, et al. R. C. Levy, V. R. Sawyer, S. Romakkaniemi, V. Kolehmainen, and A. Arola. 2018. "Bayesian aerosol retrieval algorithm for MODIS AOD retrieval over land." Atmospheric Measurement Techniques, 11 (3): 1529-1547 [10.5194/amt-11-1529-2018]

    Sullivan, R. C., R. C. Levy, A. M. da Silva, and S. C. Pryor. 2017. "Developing and diagnosing climate change indicators of regional aerosol optical properties." Scientific Reports, 7 (1): 18093 [10.1038/s41598-017-18402-x]

    Mei, L., V. Rozanov, M. Vountas, et al. J. P. Burrows, R. C. Levy, and W. Lotz. 2017. "Retrieval of aerosol optical properties using MERIS observations: Algorithm and some first results." Remote Sensing of Environment, 197: 125-140 [10.1016/j.rse.2016.11.015]

    Wang, Y., J. Wang, R. C. Levy, X. Xu, and J. S. Reid. 2017. "MODIS Retrieval of Aerosol Optical Depth over Turbid Coastal Water." Remote Sensing, 9 (6): 595 [10.3390/rs9060595]

    Zhu, J., X. Xia, J. Wang, et al. H. Che, H. Chen, J. Zhang, X. Xu, R. Levy, M. Oo, R. Holz, and M. Ayoub. 2017. "Evaluation of Aerosol Optical Depth and Aerosol Models from VIIRS Retrieval Algorithms over North China Plain." Remote Sensing, 9 (5): 432 [10.3390/rs9050432]

    Sherman, J. P., P. Gupta, R. C. Levy, and P. J. Sherman. 2016. "An Evaluation of MODIS-Retrieved Aerosol Optical Depth over a Mountainous AERONET Site in the Southeastern US." Aerosol Air Qual. Res., 16 (12): 3243-3255 [10.4209/aaqr.2015.09.0568]

    Wen, G., A. Marshak, T. Varnai, and R. C. Levy. 2016. "Testing the Two-Layer Model for Correcting Near Cloud Reflectance Enhancement Using LES/SHDOM Simulated Radiances ." J. Geophys. Res., Atmos., (121): 9661–9674 [10.1002/2016JD025021]

    Carroll, M. L., C. M. DiMiceli, J. R. Townshend, et al. R. A. Sohlberg, A. I. Elders, S. Devadiga, A. M. Sayer, and R. C. Levy. 2016. "Development of an operational land water mask for MODIS Collection 6, and influence on downstream data products." International Journal of Digital Earth, 10 (2): 207-218 [10.1080/17538947.2016.1232756]

    Field, R. D., G. R. van der Werf, T. Fanin, et al. E. J. Fetzer, R. Fuller, H. Jethva, R. Levy, N. J. Livesey, M. Luo, O. Torres, and H. M. Worden. 2016. "Indonesian fire activity and smoke pollution in 2015 show persistent nonlinear sensitivity to El Niño-induced drought." Proc Natl Acad Sci USA, 113 (33): 9204-9209 [10.1073/pnas.1524888113]

    Gupta, P., R. C. Levy, S. Mattoo, L. A. Remer, and L. A. Munchak. 2016. "A surface reflectance scheme for retrieving aerosol optical depth over urban surfaces in MODIS Dark Target retrieval algorithm." Atmospheric Measurement Techniques, 9 (7): 3293-3308 [10.5194/amt-9-3293-2016]

    Wind, G., A. M. da Silva, P. M. Norris, et al. S. Platnick, S. Mattoo, and R. C. Levy. 2016. "Multi-sensor cloud and aerosol retrieval simulator and remote sensing from model parameters – Part 2: Aerosols." Geosci. Model Dev., 9 (7): 2377-2389 [10.5194/gmd-9-2377-2016]

    van Donkelaar, A., R. V. Martin, M. Brauer, et al. N. C. Hsu, R. A. Kahn, R. C. Levy, A. Lyapustin, A. M. Sayer, and D. M. Winker. 2016. "Global Estimates of Fine Particulate Matter using a Combined Geophysical-Statistical Method with Information from Satellites, Models, and Monitors." Environ. Sci. Technol., 50 (7): 3762-3772 [10.1021/acs.est.5b05833]

    Xiao, Q., H. Zhang, M. Choi, et al. S. Li, S. Kondragunta, J. Kim, B. Holben, R. C. Levy, and Y. Liu. 2016. "Evaluation of VIIRS, GOCI, and MODIS Collection 6 AOD retrievals against ground sunphotometer observations over East Asia." Atmos. Chem. Phys., 16 (3): 1255-1269 [10.5194/acp-16-1255-2016]

    Ma, Z., X. Hu, A. M. Sayer, et al. R. C. Levy, Q. Zhang, Y. Xue, S. Tong, J. Bi, L. Huang, and Y. Liu. 2016. "Satellite-Based Spatiotemporal Trends in PM2.5 Concentrations: China, 2004–2013." Environmental Health Perspectives, 124 (2): 184-192 [10.1289/ehp.1409481]

    Alexandrov, M. D., I. V. Geogdzhayev, K. Tsigaridis, et al. A. Marshak, R. Levy, and B. Cairns. 2016. "New statistical model for variability of aerosol optical thickness: Theory and application to MODIS data over ocean." Journal of the Atmospheric Sciences, 73 (2): 821-837 [10.1175/jas-d-15-0130.1]

    Jäkel, E., B. Mey, R. Levy, et al. X. Gu, T. Yu, Z. Li, D. Althausen, B. Heese, and M. Wendisch. 2015. "Adaption of the MODIS aerosol retrieval algorithm using airborne spectral surface reflectance measurements over urban areas: a case study." Atmospheric Measurement Techniques, 8 (12): 5237-5249 [10.5194/amt-8-5237-2015]

    Brindley, H., S. Osipov, R. Bantges, et al. A. Smirnov, J. Banks, R. C. Levy, P.-J. Prakash, and G. Stenchikov. 2015. "An assessment of the quality of aerosol retrievals over the Red Sea and evaluation of the climatological cloud-free dust direct radiative effect in the region." J. Geophys. Res.-Atmos, 120 (20): 10,862–10,878 [10.1002/2015JD023282]

    Levy, R. C., L. A. Munchak, S. Mattoo, et al. F. Patadia, L. A. Remer, and R. E. Holz. 2015. "Towards a long-term global aerosol optical depth record: Applying a consistent aerosol retrieval algorithm to MODIS and VIIRS observed reflectance." Atmos. Meas. Tech, 8: 4083-4110 [10.5194/amt-8-4083-2015]

    Sullivan, R. C., R. C. Levy, and S. C. Pryor. 2015. "Spatiotemporal coherence of mean and extreme aerosol particle events over eastern North America as observed from satellite." Atmospheric Environment, 112: 126-135 [10.1016/j.atmosenv.2015.04.026]

    Sayer, A. M., L. A. Munchak, N.-Y. C. Hsu, et al. R. C. Levy, C. Bettenhausen, and M.-J. Jeong. 2014. "MODIS Collection 6 aerosol products: Comparison between Aqua's e-Deep Blue, Dark Target, and “merged” data sets, and usage recommendations." J. Geophys. Res.-Atmos, 119 (24): 13,965-13,989 [10.1002.2014JD022453]

    Colarco, P. R., R. A. Kahn, L. A. Remer, and R. C. Levy. 2014. "Impact of satellite viewing-swath width on global and regional aerosol optical thickness statistics and trends." Atmospheric Measurement Techniques, 7 (7): 2313-2335 [10.5194/amt-7-2313-2014]

    Lyapustin, A. I., Y. Wang, X. Xiong, et al. G. Meister, S. E. Platnick, R. C. Levy, B. A. Franz, S. Korkin, T. Hilker, C. J. Tucker, F. G. Hall, P. J. Sellers, A. Wu, and A. A. Angal. 2014. "Scientific impact of MODIS C5 calibration degradation and C6+ improvements." Atmos. Meas. Tech., 7: 4353-4365 [10.5194/amt-7-4353-2014]

    Livingston, J. M., J. Redemann, Y. Shinozuka, et al. R. Johnson, P. B. Russell, Q. Zhang, S. Mattoo, L. A. Remer, R. C. Levy, L. A. Munchak, and S. Ramachandran. 2014. "Comparison of MODIS 3 km and 10 km resolution aerosol optical depth retrievals over land with airborne sunphotometer measurements during ARCTAS summer 2008." Atmos. Chem. Phys., 14 (4): 2015-2038 [10.5194/acp-14-2015-2014]

    Chin, M., T. L. Diehl, Q. Tan, et al. J. M. Prospero, R. A. Kahn, L. A. Remer, H. Yu, A. M. Sayer, H. Bian, I. V. Geogdzhayev, B. N. Holben, S. G. Howell, B. J. Huebert, N.-Y. C. Hsu, D. Kim, T. L. Kucsera, R. C. Levy, M. I. Mishchenko, X. Pan, P. K. Quinn, G. L. Schuster, D. G. Streets, S. A. Strode, O. Torres, and W. Zhao. 2014. "Multi-decadal aerosol variations from 1980 to 2009: a perspective from observations and a global model." Atmos. Chem. Phys., 14 (7): 3657-3690 [10.5194/acp-14-3657-2014]

    Matsui, T., C. M. Ichoku, C. A. Randles, et al. T. L. Yuan, A. M. Da Silva, P. R. Colarco, D. Kim, R. C. Levy, A. M. Sayer, M. Chin, D. Giles, B. N. Holben, E. J. Welton, T. F. Eck, and L. A. Remer. 2014. "Current and Future Perspectives of Aerosol Research at NASA Goddard Space Flight Center." Bulletin of the American Meteorological Society, early view [10.1175/ BAMS-D-13-00153.1]

    van Donkelaar, A., R. V. Martin, R. J. Spurr, et al. E. Drury, L. A. Remer, R. C. Levy, and J. Wang. 2013. "Optimal estimation for global ground-level fine particulate matter concentrations." J. Geophys. Res. Atmos., 118 (11): 5621–5636 [10.1002/jgrd.50479]

    Kessner, A. L., J. Wang, R. C. Levy, and P. R. Colarco. 2013. "Remote sensing of surface visibility from space: A look at the United States East Coast." Atmospheric Environment, 81: 136–147 [10.1016/j.atmosenv.2013.08.050]

    Wen, G., A. Marshak, R. C. Levy, et al. L. A. Remer, N. Loeb, T. Varnai, and R. F. Cahalan. 2013. "Improvement of MODIS aerosol retrievals near clouds." J. Geophys. Res. Atmos., 118 (16): 9168-9181 [10.1002/jgrd.50617]

    Albayrak, R. A., J. C. Wei, M. Petrenko, C. S. Lynnes, and R. C. Levy. 2013. "Global bias adjustment for MODIS aerosol optical thickness using neural network." Journal of Applied Remote Sensing, 7 (1): 073514 [10.1117/1.JRS.7.073514]

    Sorek-Hamer, M., A. Cohen, R. C. Levy, B. Ziv, and D. M. Broday. 2013. "Classification of dust days by satellite remotely sensed aerosol products." Int J Rem Sens, 34 (8): 2672-2688 [Full Text (Link)] [10.1080/01431161.2012.748991]

    Remer, L. A., S. Mattoo, R. C. Levy, and L. Munchak. 2013. "MODIS 3 km aerosol product: algorithm and global perspective." Atmospheric Measurement Techniques, 6 (7): 1829-1844 [10.5194/amt-6-1829-2013]

    Munchak, L., R. C. Levy, S. Mattoo, et al. L. A. Remer, B. N. Holben, J. S. Schafer, C. A. Hostetler, and R. A. Ferrare. 2013. "MODIS 3 km aerosol product: applications over land in an urban/suburban region." Atmospheric Measurement Techniques, 6 (7): 1747-1759 [10.5194/amt-6-1747-2013]

    Levy, R. C., S. Mattoo, L. A. Munchak, et al. L. A. Remer, A. M. Sayer, F. Patadia, and N.-Y. C. Hsu. 2013. "The Collection 6 MODIS Aerosol Products over Land and Ocean." Atmos Meas Tech, 6: 2989-3034 [10.5194/amt-6-2989-2013]

    Gatebe, C. K., R. C. Levy, and A. M. Thompson. 2012. "Atmospheric Chemistry over Southern Africa: Changing Chemistry in a Changing Climate: Human and Natural Impacts over the Southern Africa Region (C4-SAR)." EOS Trans, 93 (10): 110 [10.1029/2012EO100008]

    Colarco, P. R., L. A. Remer, R. A. Kahn, R. C. Levy, and E. J. Welton. 2012. "Implications of satellite swath width on global aerosol optical thickness statistics." Atmos. Meas. Tech. Discuss., 5 (2): 2795-2820 [10.5194/amtd-5-2795-2012]

    Wang, D., D. Morton, J. Masek, et al. A. Wu, J. Nagol, J. Xiong, R. Levy, E. Vermote, and R. Wolfe. 2012. "Impact of sensor degradation on the MODIS NDVI time series." Remote Sensing of Environment, 119: 55-61 [10.1016/j.rse.2011.12.001]

    Kleidman, R. G., A. Smirnov, R. C. Levy, S. Mattoo, and D. Tanre. 2012. "Evaluation and Wind Speed Dependence of MODIS Aerosol Retrievals Over Open Ocean." IEEE Trans. Geosci. Remote Sensing, 50 (2): 429-435 [10.1109/TGRS.2011.2162073]

    Remer, L. A., S. Mattoo, R. C. Levy, et al. A. Heidinger, R. Pierce, and M. Chin. 2012. "Retrieving aerosol in a cloudy environment: aerosol product availability as a function of spatial resolution." Atmospheric Measurement Techniques, 5 (7): 1823-1840 [10.5194/amt-5-1823-2012]

    Zhang, Y., H. Yu, T. F. Eck, et al. A. Smirnov, M. Chin, L. A. Remer, H. Bian, Q. Tan, R. C. Levy, B. N. Holben, and S. Piazzolla. 2012. "Aerosol daytime variations over North and South America derived from multiyear AERONET measurements." J. Geophys. Res., 117 (D5): D05211 [10.1029/2011JD017242]

    Mielonen, T., R. C. Levy, V. Aaltonen, et al. M. Komppula, G. de Leeuw, J. Huttunen, H. Lihavainen, P. Kolmonen, K. E. Lehtinen, and A. Arola. 2011. "Evaluating the assumptions of surface reflectance and aerosol type selection within the MODIS aerosol retrieval over land: the problem of dust type selection." Atmospheric Measurement Techniques, 4 (2): 201-214 [10.5194/amt-4-201-2011]

    Witte, J. C., A. R. Douglass, A. da Silva, et al. O. Torres, R. Levy, and B. N. Duncan. 2011. "NASA A-Train and Terra observations of the 2010 Russian wildfires." Atmos. Chem. Phys., 11 (17): 9287-9301 [10.5194/acp-11-9287-2011]

    Van Donkelaar, A., R. V. Martin, R. C. Levy, et al. A. M. Da Silva, M. Krzyzanowski, N. E. Chubarova, E. Semutnikova, and A. J. Cohen. 2011. "Satellite-based estimates of ground-level fine particulate matter during extreme events: A case study of the Moscow fires in 2010." Atmospheric Environment, 45 (34): 6225-6232 [10.1016/j.atmosenv.2011.07.068]

    Crucius, J., A. Schroth, S. Gassó, and R. C. Levy. 2011. "Glacial flour dust storms in the Gulf of Alaska: Hydrologic and meteorological controls and their importance as a source of bioavailable iron." Geophysical Research Letters, 38 (6): L06602 [10.1029/2010GL046573]

    Lyapustin, A. I., Y. Wang, I. Laszlo, et al. R. A. Kahn, S. Korkin, L. A. Remer, R. C. Levy, and J. Reid. 2011. "Multiangle implementation of atmospheric correction (MAIAC): 2. Aerosol algorithm." J. Geophys. Res., 116 (D3): D03211 [10.1029/2010JD014986]

    Kahn, R. A., M. Garay, D. Nelson, et al. R. C. Levy, M. Bull, D. Diner, J. Martonchik, E. Hanson, L. A. Remer, and D. Tanre. 2011. "Response to “Toward unified satellite climatology of aerosol properties. 3. MODIS versus MISR versus AERONET”." Journal of Quantitative Spectroscopy and Radiative Transfer, 112 (5): 901-909 [10.1016/j.jqsrt.2010.11.001]

    Kokhanovsky, A. A., J. L. Deuzé, D. J. Diner, et al. O. Dubovik, F. Ducos, C. Emde, M. J. Garay, R. G. Grainger, A. Heckel, M. Herman, I. L. Katsev, J. Keller, R. Levy, P. R. North, A. S. Prikhach, V. V. Rozanov, A. M. Sayer, Y. Ota, D. Tanré, G. E. Thomas, and E. P. Zege. 2010. "The inter-comparison of major satellite aerosol retrieval algorithms using simulated intensity and polarization characteristics of reflected light." Atmospheric Measurement Techniques, 3 (4): 909-932 [10.5194/amt-3-909-2010]

    Jethva, H. T., S. Satheesh, J. Srinivasan, and R. C. Levy. 2010. "Improved retrieval of aerosol size-resolved properties from moderate resolution imaging spectroradiometer over India: Role of aerosol model and surface reflectance." Journal of Geophysical Research-Atmosphere, 115 (D18213): [10.1029/2009JD013218]

    van Donkelaar, A., R. V. Martin, M. Brauer, et al. R. A. Kahn, R. C. Levy, C. Verduzco, and P. J. Villeneuve. 2010. "Global Estimates of Ambient Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth: Development and Application." Environ Health Perspectives, 118 (6): 847-855 [10.1289/ehp.0901623]

    Levy, R. C., L. A. Remer, R. G. Kleidman, et al. S. Mattoo, C. M. Ichoku, R. A. Kahn, and T. F. Eck. 2010. "Global evaluation of the Collection 5 MODIS dark-target aerosol products over land." Atmos. Chem. Phys., 10 (21): 10399-10420 [10.5194/acp-10-10399-2010]

    Levy, R. C., G. Leptoukh, R. A. Kahn, et al. V. Zubko, A. Gopalan, and L. A. Remer. 2009. "A Critical Look at Deriving Monthly Aerosol Optical Depth From Satellite Data." IEEE Trans. Geosci. Remote Sensing, 47 (8): 2942-2956 [10.1109/TGRS.2009.2013842]

    Redemann, J., Q. Zhang, J. Livingston, et al. P. Russell, Y. Shinozuka, A. Clark, R. Johnson, and R. C. Levy. 2009. "Testing aerosol properties in MODIS Collection 4 and 5 using airborne sunphotometer observations in INTEX-B/MILAGRO." Atmos. Chem. Phys., 9 (21): 8159-8172 [Full Text (Link)] [10.5194/acp-9-8159-2009]

    Kahn, R. A., D. Nelson, M. Garay, et al. R. C. Levy, M. Bull, J. Martonchik, D. Diner, S. Paradise, E. Hansen, and L. A. Remer. 2009. "MISR Aerosol Product Attributes and Statistical Comparisons With MODIS." IEEE Trans. Geosci. Remote Sensing, 47 (12): 4095-4114 [10.1109/TGRS.2009.2023115]

    Karnieli, A., Y. Derimian, R. Indoitu, et al. N. Panov, R. Levy, L. Remer, W. Maenhaut, and B. N. Holben. 2009. "Temporal trend in anthropogenic sulfur aerosol transport from central and eastern Europe to Israel." J. Geophys. Res., 114: D00D19 [10.1029/2009JD011870]

    Remer, L. A., R. G. Kleidman, R. C. Levy, et al. Y. J. Kaufman, D. Tanre, S. Mattoo, J. V. Martins, C. M. Ichoku, I. Koren, H. Yu, and B. N. Holben. 2008. "Global aerosol climatology from the MODIS satellite sensors." J. Geophys. Res., 113 (D14): D14S07 [10.1029/2007JD009661]

    Kotchenova, S., E. F. Vermote, R. C. Levy, and A. I. Lyapustin. 2008. "Radiative transfer codes for atmospheric correction and aerosol retrieval: intercomparison study." Applied Optics, 47 (13): 2215 [10.1364/AO.47.002215]

    Mi, W., Z. Li, X. Xia, et al. B. N. Holben, R. C. Levy, F. Zhao, H. Chen, and M. Cribb. 2007. "Evaluation of the Moderate Resolution Imaging Spectroradiometer aerosol products at two Aerosol Robotic Network stations in China." J Geophys Res, 112 (D22S08): 14 pp [10.1029/2007JD008474]

    Levy, R. C., R. C. Levy, S. Mattoo, E. F. Vermote, and Y. Kaufman. 2007. "Second-generation operational algorithm: Retrieval of aerosol properties over land from inversion of Moderate Resolution Imaging Spectroradiometer spectral reflectance." J Geophys Res, 112 (D13211): 21 pp [10.1029/2006JD007815]

    Levy, R. C., L. A. Remer, and O. Dubovik. 2007. "Global aerosol optical properties and application to Moderate Resolution Imaging Spectroradiometer aerosol retrieval over land." J. Geophys. Res., 112 (D13): [10.1029/2006jd007815]

    Levy, R. C., and R. T. Pinker. 2007. "Remote Sensing of Spectral Aerosol Properties: A Classroom Experience." Bulletin of the American Meteorological Society, 88 (1): 25-30 [10.1175/bams-88-1-25]

    Kahn, R. A., W.-H. Li, C. Moroney, et al. D. J. Diner, J. V. Martonchik, E. Fishbein, and R. C. Levy. 2007. "Satellite-derived aerosol optical depth over dark water from MISR and MODIS: Comparisons with AERONET and implications for climatological studies." J. Geophys. Res., 112 (D18): D11205 [10.1029/2006JD008175]

    Redemann, J., B. Schmid, J. Eilers, et al. R. A. Kahn, R. C. Levy, P. Russell, J. Livingston, P. Hobbs, J. W. Smith, and B. N. Holben. 2005. "Suborbital Measurements of Spectral Aerosol Optical Depth and Its Variability at Subsatellite Grid Scales in Support of CLAMS 2001." J. Atmos. Sci., 62 (4): 993-1007 [10.1175/JAS3387.1]

    Levy, R. C., L. A. Remer, J. Martins, et al. Y. Kaufman, A. Plana-Fattori, J. Redemann, and B. Wenny. 2005. "Evaluation of the MODIS aerosol retrievals over ocean and land during CLAMS." J Atmos Sci, 62: 974-992 [10.1175/JAS3391.1]

    Remer, L. A., Y. Kaufman, D. Tanré, et al. S. Mattoo, D. Chu, J. Martins, R. Li, C. M. Ichoku, R. C. Levy, R. G. Kleidman, T. F. Eck, E. F. Vermote, and B. N. Holben. 2005. "The MODIS aerosol algorithm, products, and validation." J Atmos Sci, 62 (4): 947-973 [10.1175/JAS3385.1]

    Vant-Hull, B., Z. Li, B. Taubman, et al. R. C. Levy, L. Manfu, F. Chang, and B. Doddridge. 2005. "Smoke over haze: Comparative analysis of satellite, surface radiometer, and airborne in situ measurements of aerosol optical properties and radiative forcing over the eastern United States." Journal of Geophysical Research, 110 (D10): D10S21 [10.1029/2004jd004518]

    Kaufman, Y., L. A. Remer, D. Tanre, et al. R. Li, R. G. Kleidman, S. Mattoo, R. C. Levy, T. F. Eck, B. N. Holben, C. M. Ichoku, J. Martins, and I. Koren. 2005. "A critical examination of the residual cloud contamination and diurnal sampling effects on MODIS estimates of aerosol over ocean." IEEE Trans Geosci Remote Sens, 43 (12): 2886-2897 [10.1109/TGRS.2005.858430]

    Chin, M., A. Chu, R. Levy, et al. L. Remer, Y. Kaufman, B. Holben, T. Eck, P. Ginoux, and Q. Gao. 2004. "Aerosol distribution in the Northern Hemisphere during ACE-Asia: Results from global model, satellite observations, and Sun photometer measurements." J. Geophys. Res., 109 (D23): [10.1029/2004jd004829]

    Levy, R. C., L. A. Remer, and Y. Kaufman. 2004. "Effects of neglecting polarization on the MODIS aerosol retrieval over land." IEEE Trans on Geoscience & Rem Sens, 42 (11): 2576-2583 [10.1109/TGRS.2004.837336]

    Ichoku, C. M., Y. Kaufman, L. A. Remer, and R. C. Levy. 2004. "Global aerosol remote sensing from MODIS." Advances in Space Research, 34 (4): 820-827 [10.1016/j.asr.2003.07.071]

    Levy, R. C., L. A. Remer, D. Tanre, et al. Y. J. Kaufman, C. M. Ichoku, B. N. Holben, J. M. Livingston, P. B. Russell, and J. Maring. 2003. "Evaluation of the Moderate-Resolution Imaging Spectroradiometer (MODIS) retrievals of dust aerosol over the ocean during PRIDE." Journal of Geophysical Research, 108 (D19): 8594 [10.1029/2002jd002460]

    Ichoku, C. M., L. A. Remer, Y. J. Kaufman, et al. R. C. Levy, D.-C. A. Chu, D. Tanré, and B. N. Holben. 2003. "MODIS observation of aerosols and estimation of aerosol radiative forcing over southern Africa during SAFARI 2000." Journal of Geophysical Research-Atmos., 108 (D13): 8499 [10.1029/2002jd002366]

    Livingston, J., P. Russell, J. Reid, et al. J. Redemann, B. Schmid, D. Allen, O. Torres, R. Levy, L. Remer, B. Holben, A. Smirnov, O. Dubovik, E. J. Welton, J. Campbell, J. Wang, and S. Christopher. 2003. "Airborne Sun photometer measurements of aerosol optical depth and columnar water vapor during the Puerto Rico Dust Experiment and comparison with land, aircraft, and satellite measurements." J Geophys Res, 108 (D19): 8588 [10.1029/2002JD002520]

    Colarco, P. R., O. Toon, J. Reid, et al. J. Livingston, P. Russell, J. Redemann, B. Schmid, H. Maring, D. Savoie, E. J. Welton, J. Campbell, B. N. Holben, and R. C. Levy. 2003. "Saharan dust transport to the Caribbean during PRIDE: 2. Transport, vertical profiles, and deposition in simulations of in situ and remote sensing observations." J. Geophys. Res., 108 (D19): 8590 [10.1029/2002JD002659]

    Ichoku, C. M., R. C. Levy, L. A. Remer, et al. J. V. Martins, B. N. Holben, N. K. Abuhassan, I. Slutsker, and T. F. Eck. 2002. "Analysis of the performance characteristics of the five-channel Microtops II Sun photometer for measuring aerosol optical thickness and precipitable water vapor." Journal of Geophysical Research, 107 (D13): 4179 [10.1029/2001jd001302]

    Martins, J. V., D. Tanre, L. Remer, et al. Y. J. Kaufman, S. Mattoo, and R. C. Levy. 2002. "MODIS Cloud screening for remote sensing of aerosols over oceans using spatial variability." Geophysical Research Letters, 29 (12): 8009 [10.1029/2001gl013252]

    Remer, L., D. Tanre, Y. Kaufman, et al. C. Ichoku, S. Matto, R. Levy, D. Chu, B. N. Holben, O. Dubovik, A. Smirnov, J. Martins, R. Li, and Z. Ahmad. 2002. "Validation of MODIS aerosol retrieval over ocean." Geophys Res Lett, 29 (12): [10.1029/2001GL013204]

    Non-Refereed

    Lyapustin, A. I., X. Xiong, Y. Wang, et al. G. Meister, S. E. Platnick, R. C. Levy, B. A. Franz, A. Wu, and A. A. Angal. 2015. "MODIS Terra-Aqua C6+ Cross-Calibration Improvements ." GSICS Quarterly 9 (2): [10.7289/V5XK8CHN]

    Levy, R. C. 2013. "Growing up MODIS: Towards a mature aerosol climate data record." AIP Conference Proceedings 1531 (1): 31-34 [10.1063/1.4804700]

    Brief Bio

    Dr. Robert Levy has been a Research Physical Scientist in the Climate and Radiation Laboratory (CRL) since 2013. Dr. Levy is focused on retrieving global aerosol properties from satellite observations, and using the retrieved products for quantifying the role of aerosols in climate and air quality.  He is responsible for maintaining the "dark-target" aerosol retrieval for MODIS, and applying it to VIIRS and other sensors (AHI and ABI) to create a long-term global aerosol record and characterize the aerosol diurnal cycle. Dr. Levy’s research has ranged from applications of new algorithm development, monitoring surface air quality, aerosol/cloud interactions and aerosol trends. His publication list and citation metrics can be found at ResearcherID.
     

    Publications

    Refereed

    Zhou, Y., K. Nelson, K. I. Mohr, et al. G. J. Huffman, R. C. Levy, and M. Grecu. 2019. "A spatial‐temporal extreme precipitation database from GPM IMERG." Journal of Geophysical Research: Atmospheres (In Press) 2019JD030449 [10.1029/2019jd030449]

    Yu, H., Q. Tan, M. Chin, et al. L. A. Remer, R. A. Kahn, H. Bian, D. Kim, Z. Zhang, T. L. Yuan, A. H. Omar, D. M. Winker, R. C. Levy, O. Kalashnikova, L. Crepeau, V. Capelle, and A. Chédin. 2019. "Estimates of African Dust Deposition Along the Trans‐Atlantic Transit Using the Decadelong Record of Aerosol Measurements from CALIOP, MODIS, MISR, and IASI." Journal of Geophysical Research: Atmospheres 124 (14): 7975-7996 [10.1029/2019jd030574]

    Remer, L. A., K. Knobelspiesse, P.-W. Zhai, et al. F. Xu, O. V. Kalashnikova, J. Chowdhary, O. Hasekamp, O. Dubovik, L. Wu, Z. Ahmad, E. Boss, B. Cairns, O. Coddington, A. B. Davis, H. M. Dierssen, D. J. Diner, B. Franz, R. Frouin, B.-C. Gao, A. Ibrahim, R. C. Levy, J. V. Martins, A. H. Omar, and O. Torres. 2019. "Retrieving Aerosol Characteristics From the PACE Mission, Part 2: Multi-Angle and Polarimetry." Frontiers in Environmental Science 7 [10.3389/fenvs.2019.00094]

    Remer, L. A., A. B. Davis, S. Mattoo, et al. R. C. Levy, O. V. Kalashnikova, O. Coddington, J. Chowdhary, K. Knobelspiesse, X. Xu, Z. Ahmad, E. Boss, B. Cairns, H. M. Dierssen, D. J. Diner, B. Franz, R. Frouin, B.-C. Gao, A. Ibrahim, J. V. Martins, A. H. Omar, O. Torres, F. Xu, and P.-W. Zhai. 2019. "Retrieving Aerosol Characteristics From the PACE Mission, Part 1: Ocean Color Instrument." Frontiers in Earth Science 7 [10.3389/feart.2019.00152]

    Espinosa, W. R., J. V. Martins, L. A. Remer, et al. O. Dubovik, L. Tatyana, F. David, A. Puthukkudy, F. D. Orozco, L. Ziemba, K. L. Thornhill, and R. C. Levy. 2019. "Retrievals of aerosol size distribution, spherical fraction and complex refractive index from airborne in situ angular light scattering and absorption measurements." Journal of Geophysical Research: Atmospheres 124 (14): 7997-8024 [ https://doi.org/10.1029/2018JD030009]

    Spencer, R. S., R. C. Levy, L. A. Remer, et al. S. Mattoo, G. T. Arnold, D. L. Hlavka, K. G. Meyer, A. Marshak, E. M. Wilcox, and S. E. Platnick. 2019. "Exploring aerosols near clouds with high-spatial-resolution aircraft remote sensing during SEAC4RS." Journal of Geophysical Research: Atmospheres [10.1029/2018jd028989]

    Shi, Y. R., R. C. Levy, T. F. Eck, et al. B. Fisher, S. Mattoo, L. A. Remer, I. Slutsker, and J. Zhang. 2019. "Characterizing the 2015 Indonesia fire event using modified MODIS aerosol retrievals." Atmospheric Chemistry and Physics 19 (1): 259-274 [10.5194/acp-19-259-2019]

    Levy, R. C., S. Mattoo, V. Sawyer, et al. Y. Shi, P. R. Colarco, A. I. Lyapustin, Y. Wang, and L. A. Remer. 2018. "Exploring systematic offsets between aerosol products from the two MODIS sensors." Atmospheric Measurement Techniques 11 4073-4092 [https://doi.org/10.5194/amt-11-4073-2018]

    Gupta, P., P. Doraiswamy, R. Levy, et al. O. Pikelnaya, J. Maibach, B. Feenstra, A. Polidori, F. Kiros, and K. C. Mills. 2018. "Impact of California Fires on Local and Regional Air Quality: The Role of a Low-Cost Sensor Network and Satellite Observations." GeoHealth [10.1029/2018gh000136]

    Patadia, F., R. Levy, and S. Mattoo. 2018. "Correcting for trace gas absorption when retrieving aerosol optical depth from satellite observations of reflected shortwave radiation." Atmospheric Measurement Techniques 11 3205-3219 [https://doi.org/10.5194/amt-11-3205-2018]

    Gupta, P., L. A. Remer, R. C. Levy, and S. Mattoo. 2018. "Validation of MODIS 3 km land aerosol optical depth from NASA's EOS Terra and Aqua missions." Atmospheric Measurement Techniques 11 (5): 3145-3159 [10.5194/amt-11-3145-2018]

    Eck, T. F., B. N. Holben, J. S. Reid, et al. P. Xian, D. M. Giles, A. Sinyuk, A. Smirnov, J. S. Schafer, I. Slutsker, J. Kim, J.-H. Koo, M. Choi, K. C. Kim, I. Sano, A. Arola, A. M. Sayer, R. C. Levy, L. A. Munchak, N. T. O’Neill, A. Lyapustin, N. C. Hsu, C. A. Randles, A. M. Da Silva, V. Buchard, R. C. Govindaraju, E. Hyer, J. H. Crawford, P. Wang, and X. Xia. 2018. "Observations of the Interaction and Transport of Fine Mode Aerosols with Cloud and/or Fog in Northeast Asia from Aerosol Robotic Network (AERONET) and Satellite Remote Sensing." Journal of Geophysical Research: Atmospheres [10.1029/2018jd028313]

    Lipponen, A., T. Mielonen, M. R. Pitkänen, et al. R. C. Levy, V. R. Sawyer, S. Romakkaniemi, V. Kolehmainen, and A. Arola. 2018. "Bayesian aerosol retrieval algorithm for MODIS AOD retrieval over land." Atmospheric Measurement Techniques 11 (3): 1529-1547 [10.5194/amt-11-1529-2018]

    Sullivan, R. C., R. C. Levy, A. M. da Silva, and S. C. Pryor. 2017. "Developing and diagnosing climate change indicators of regional aerosol optical properties." Scientific Reports 7 (1): 18093 [10.1038/s41598-017-18402-x]

    Mei, L., V. Rozanov, M. Vountas, et al. J. P. Burrows, R. C. Levy, and W. Lotz. 2017. "Retrieval of aerosol optical properties using MERIS observations: Algorithm and some first results." Remote Sensing of Environment 197 125-140 [10.1016/j.rse.2016.11.015]

    Wang, Y., J. Wang, R. C. Levy, X. Xu, and J. S. Reid. 2017. "MODIS Retrieval of Aerosol Optical Depth over Turbid Coastal Water." Remote Sensing 9 (6): 595 [10.3390/rs9060595]

    Zhu, J., X. Xia, J. Wang, et al. H. Che, H. Chen, J. Zhang, X. Xu, R. Levy, M. Oo, R. Holz, and M. Ayoub. 2017. "Evaluation of Aerosol Optical Depth and Aerosol Models from VIIRS Retrieval Algorithms over North China Plain." Remote Sensing 9 (5): 432 [10.3390/rs9050432]

    Sherman, J. P., P. Gupta, R. C. Levy, and P. J. Sherman. 2016. "An Evaluation of MODIS-Retrieved Aerosol Optical Depth over a Mountainous AERONET Site in the Southeastern US." Aerosol Air Qual. Res. 16 (12): 3243-3255 [10.4209/aaqr.2015.09.0568]

    Wen, G., A. Marshak, T. Varnai, and R. C. Levy. 2016. "Testing the Two-Layer Model for Correcting Near Cloud Reflectance Enhancement Using LES/SHDOM Simulated Radiances ." J. Geophys. Res., Atmos. 9661–9674 [10.1002/2016JD025021]

    Carroll, M. L., C. M. DiMiceli, J. R. Townshend, et al. R. A. Sohlberg, A. I. Elders, S. Devadiga, A. M. Sayer, and R. C. Levy. 2016. "Development of an operational land water mask for MODIS Collection 6, and influence on downstream data products." International Journal of Digital Earth 10 (2): 207-218 [10.1080/17538947.2016.1232756]

    Field, R. D., G. R. van der Werf, T. Fanin, et al. E. J. Fetzer, R. Fuller, H. Jethva, R. Levy, N. J. Livesey, M. Luo, O. Torres, and H. M. Worden. 2016. "Indonesian fire activity and smoke pollution in 2015 show persistent nonlinear sensitivity to El Niño-induced drought." Proc Natl Acad Sci USA 113 (33): 9204-9209 [10.1073/pnas.1524888113]

    Gupta, P., R. C. Levy, S. Mattoo, L. A. Remer, and L. A. Munchak. 2016. "A surface reflectance scheme for retrieving aerosol optical depth over urban surfaces in MODIS Dark Target retrieval algorithm." Atmospheric Measurement Techniques 9 (7): 3293-3308 [10.5194/amt-9-3293-2016]

    Wind, G., A. M. da Silva, P. M. Norris, et al. S. Platnick, S. Mattoo, and R. C. Levy. 2016. "Multi-sensor cloud and aerosol retrieval simulator and remote sensing from model parameters – Part 2: Aerosols." Geosci. Model Dev. 9 (7): 2377-2389 [10.5194/gmd-9-2377-2016]

    van Donkelaar, A., R. V. Martin, M. Brauer, et al. N. C. Hsu, R. A. Kahn, R. C. Levy, A. Lyapustin, A. M. Sayer, and D. M. Winker. 2016. "Global Estimates of Fine Particulate Matter using a Combined Geophysical-Statistical Method with Information from Satellites, Models, and Monitors." Environ. Sci. Technol. 50 (7): 3762-3772 [10.1021/acs.est.5b05833]

    Xiao, Q., H. Zhang, M. Choi, et al. S. Li, S. Kondragunta, J. Kim, B. Holben, R. C. Levy, and Y. Liu. 2016. "Evaluation of VIIRS, GOCI, and MODIS Collection 6 AOD retrievals against ground sunphotometer observations over East Asia." Atmos. Chem. Phys. 16 (3): 1255-1269 [10.5194/acp-16-1255-2016]

    Ma, Z., X. Hu, A. M. Sayer, et al. R. C. Levy, Q. Zhang, Y. Xue, S. Tong, J. Bi, L. Huang, and Y. Liu. 2016. "Satellite-Based Spatiotemporal Trends in PM2.5 Concentrations: China, 2004–2013." Environmental Health Perspectives 124 (2): 184-192 [10.1289/ehp.1409481]

    Alexandrov, M. D., I. V. Geogdzhayev, K. Tsigaridis, et al. A. Marshak, R. Levy, and B. Cairns. 2016. "New statistical model for variability of aerosol optical thickness: Theory and application to MODIS data over ocean." Journal of the Atmospheric Sciences 73 (2): 821-837 [10.1175/jas-d-15-0130.1]

    Jäkel, E., B. Mey, R. Levy, et al. X. Gu, T. Yu, Z. Li, D. Althausen, B. Heese, and M. Wendisch. 2015. "Adaption of the MODIS aerosol retrieval algorithm using airborne spectral surface reflectance measurements over urban areas: a case study." Atmospheric Measurement Techniques 8 (12): 5237-5249 [10.5194/amt-8-5237-2015]

    Brindley, H., S. Osipov, R. Bantges, et al. A. Smirnov, J. Banks, R. C. Levy, P.-J. Prakash, and G. Stenchikov. 2015. "An assessment of the quality of aerosol retrievals over the Red Sea and evaluation of the climatological cloud-free dust direct radiative effect in the region." J. Geophys. Res.-Atmos 120 (20): 10,862–10,878 [10.1002/2015JD023282]

    Levy, R. C., L. A. Munchak, S. Mattoo, et al. F. Patadia, L. A. Remer, and R. E. Holz. 2015. "Towards a long-term global aerosol optical depth record: Applying a consistent aerosol retrieval algorithm to MODIS and VIIRS observed reflectance." Atmos. Meas. Tech 8 4083-4110 [10.5194/amt-8-4083-2015]

    Sullivan, R. C., R. C. Levy, and S. C. Pryor. 2015. "Spatiotemporal coherence of mean and extreme aerosol particle events over eastern North America as observed from satellite." Atmospheric Environment 112 126-135 [10.1016/j.atmosenv.2015.04.026]

    Sayer, A. M., L. A. Munchak, N.-Y. C. Hsu, et al. R. C. Levy, C. Bettenhausen, and M.-J. Jeong. 2014. "MODIS Collection 6 aerosol products: Comparison between Aqua's e-Deep Blue, Dark Target, and “merged” data sets, and usage recommendations." J. Geophys. Res.-Atmos 119 (24): 13,965-13,989 [10.1002.2014JD022453]

    Colarco, P. R., R. A. Kahn, L. A. Remer, and R. C. Levy. 2014. "Impact of satellite viewing-swath width on global and regional aerosol optical thickness statistics and trends." Atmospheric Measurement Techniques 7 (7): 2313-2335 [10.5194/amt-7-2313-2014]

    Lyapustin, A. I., Y. Wang, X. Xiong, et al. G. Meister, S. E. Platnick, R. C. Levy, B. A. Franz, S. Korkin, T. Hilker, C. J. Tucker, F. G. Hall, P. J. Sellers, A. Wu, and A. A. Angal. 2014. "Scientific impact of MODIS C5 calibration degradation and C6+ improvements." Atmos. Meas. Tech. 7 4353-4365 [10.5194/amt-7-4353-2014]

    Livingston, J. M., J. Redemann, Y. Shinozuka, et al. R. Johnson, P. B. Russell, Q. Zhang, S. Mattoo, L. A. Remer, R. C. Levy, L. A. Munchak, and S. Ramachandran. 2014. "Comparison of MODIS 3 km and 10 km resolution aerosol optical depth retrievals over land with airborne sunphotometer measurements during ARCTAS summer 2008." Atmos. Chem. Phys. 14 (4): 2015-2038 [10.5194/acp-14-2015-2014]

    Chin, M., T. L. Diehl, Q. Tan, et al. J. M. Prospero, R. A. Kahn, L. A. Remer, H. Yu, A. M. Sayer, H. Bian, I. V. Geogdzhayev, B. N. Holben, S. G. Howell, B. J. Huebert, N.-Y. C. Hsu, D. Kim, T. L. Kucsera, R. C. Levy, M. I. Mishchenko, X. Pan, P. K. Quinn, G. L. Schuster, D. G. Streets, S. A. Strode, O. Torres, and W. Zhao. 2014. "Multi-decadal aerosol variations from 1980 to 2009: a perspective from observations and a global model." Atmos. Chem. Phys. 14 (7): 3657-3690 [10.5194/acp-14-3657-2014]

    Matsui, T., C. M. Ichoku, C. A. Randles, et al. T. L. Yuan, A. M. Da Silva, P. R. Colarco, D. Kim, R. C. Levy, A. M. Sayer, M. Chin, D. Giles, B. N. Holben, E. J. Welton, T. F. Eck, and L. A. Remer. 2014. "Current and Future Perspectives of Aerosol Research at NASA Goddard Space Flight Center." Bulletin of the American Meteorological Society early view [10.1175/ BAMS-D-13-00153.1]

    van Donkelaar, A., R. V. Martin, R. J. Spurr, et al. E. Drury, L. A. Remer, R. C. Levy, and J. Wang. 2013. "Optimal estimation for global ground-level fine particulate matter concentrations." J. Geophys. Res. Atmos. 118 (11): 5621–5636 [10.1002/jgrd.50479]

    Kessner, A. L., J. Wang, R. C. Levy, and P. R. Colarco. 2013. "Remote sensing of surface visibility from space: A look at the United States East Coast." Atmospheric Environment 81 136–147 [10.1016/j.atmosenv.2013.08.050]

    Wen, G., A. Marshak, R. C. Levy, et al. L. A. Remer, N. Loeb, T. Varnai, and R. F. Cahalan. 2013. "Improvement of MODIS aerosol retrievals near clouds." J. Geophys. Res. Atmos. 118 (16): 9168-9181 [10.1002/jgrd.50617]

    Albayrak, R. A., J. C. Wei, M. Petrenko, C. S. Lynnes, and R. C. Levy. 2013. "Global bias adjustment for MODIS aerosol optical thickness using neural network." Journal of Applied Remote Sensing 7 (1): 073514 [10.1117/1.JRS.7.073514]

    Sorek-Hamer, M., A. Cohen, R. C. Levy, B. Ziv, and D. M. Broday. 2013. "Classification of dust days by satellite remotely sensed aerosol products." Int J Rem Sens 34 (8): 2672-2688 [Full Text (Link)] [10.1080/01431161.2012.748991]

    Remer, L. A., S. Mattoo, R. C. Levy, and L. Munchak. 2013. "MODIS 3 km aerosol product: algorithm and global perspective." Atmospheric Measurement Techniques 6 (7): 1829-1844 [10.5194/amt-6-1829-2013]

    Munchak, L., R. C. Levy, S. Mattoo, et al. L. A. Remer, B. N. Holben, J. S. Schafer, C. A. Hostetler, and R. A. Ferrare. 2013. "MODIS 3 km aerosol product: applications over land in an urban/suburban region." Atmospheric Measurement Techniques 6 (7): 1747-1759 [10.5194/amt-6-1747-2013]

    Levy, R. C., S. Mattoo, L. A. Munchak, et al. L. A. Remer, A. M. Sayer, F. Patadia, and N.-Y. C. Hsu. 2013. "The Collection 6 MODIS Aerosol Products over Land and Ocean." Atmos Meas Tech 6 2989-3034 [10.5194/amt-6-2989-2013]

    Gatebe, C. K., R. C. Levy, and A. M. Thompson. 2012. "Atmospheric Chemistry over Southern Africa: Changing Chemistry in a Changing Climate: Human and Natural Impacts over the Southern Africa Region (C4-SAR)." EOS Trans 93 (10): 110 [10.1029/2012EO100008]

    Colarco, P. R., L. A. Remer, R. A. Kahn, R. C. Levy, and E. J. Welton. 2012. "Implications of satellite swath width on global aerosol optical thickness statistics." Atmos. Meas. Tech. Discuss. 5 (2): 2795-2820 [10.5194/amtd-5-2795-2012]

    Wang, D., D. Morton, J. Masek, et al. A. Wu, J. Nagol, J. Xiong, R. Levy, E. Vermote, and R. Wolfe. 2012. "Impact of sensor degradation on the MODIS NDVI time series." Remote Sensing of Environment 119 55-61 [10.1016/j.rse.2011.12.001]

    Kleidman, R. G., A. Smirnov, R. C. Levy, S. Mattoo, and D. Tanre. 2012. "Evaluation and Wind Speed Dependence of MODIS Aerosol Retrievals Over Open Ocean." IEEE Trans. Geosci. Remote Sensing 50 (2): 429-435 [10.1109/TGRS.2011.2162073]

    Remer, L. A., S. Mattoo, R. C. Levy, et al. A. Heidinger, R. Pierce, and M. Chin. 2012. "Retrieving aerosol in a cloudy environment: aerosol product availability as a function of spatial resolution." Atmospheric Measurement Techniques 5 (7): 1823-1840 [10.5194/amt-5-1823-2012]

    Zhang, Y., H. Yu, T. F. Eck, et al. A. Smirnov, M. Chin, L. A. Remer, H. Bian, Q. Tan, R. C. Levy, B. N. Holben, and S. Piazzolla. 2012. "Aerosol daytime variations over North and South America derived from multiyear AERONET measurements." J. Geophys. Res. 117 (D5): D05211 [10.1029/2011JD017242]

    Mielonen, T., R. C. Levy, V. Aaltonen, et al. M. Komppula, G. de Leeuw, J. Huttunen, H. Lihavainen, P. Kolmonen, K. E. Lehtinen, and A. Arola. 2011. "Evaluating the assumptions of surface reflectance and aerosol type selection within the MODIS aerosol retrieval over land: the problem of dust type selection." Atmospheric Measurement Techniques 4 (2): 201-214 [10.5194/amt-4-201-2011]

    Witte, J. C., A. R. Douglass, A. da Silva, et al. O. Torres, R. Levy, and B. N. Duncan. 2011. "NASA A-Train and Terra observations of the 2010 Russian wildfires." Atmos. Chem. Phys. 11 (17): 9287-9301 [10.5194/acp-11-9287-2011]

    Van Donkelaar, A., R. V. Martin, R. C. Levy, et al. A. M. Da Silva, M. Krzyzanowski, N. E. Chubarova, E. Semutnikova, and A. J. Cohen. 2011. "Satellite-based estimates of ground-level fine particulate matter during extreme events: A case study of the Moscow fires in 2010." Atmospheric Environment 45 (34): 6225-6232 [10.1016/j.atmosenv.2011.07.068]

    Crucius, J., A. Schroth, S. Gassó, and R. C. Levy. 2011. "Glacial flour dust storms in the Gulf of Alaska: Hydrologic and meteorological controls and their importance as a source of bioavailable iron." Geophysical Research Letters 38 (6): L06602 [10.1029/2010GL046573]

    Lyapustin, A. I., Y. Wang, I. Laszlo, et al. R. A. Kahn, S. Korkin, L. A. Remer, R. C. Levy, and J. Reid. 2011. "Multiangle implementation of atmospheric correction (MAIAC): 2. Aerosol algorithm." J. Geophys. Res. 116 (D3): D03211 [10.1029/2010JD014986]

    Kahn, R. A., M. Garay, D. Nelson, et al. R. C. Levy, M. Bull, D. Diner, J. Martonchik, E. Hanson, L. A. Remer, and D. Tanre. 2011. "Response to “Toward unified satellite climatology of aerosol properties. 3. MODIS versus MISR versus AERONET”." Journal of Quantitative Spectroscopy and Radiative Transfer 112 (5): 901-909 [10.1016/j.jqsrt.2010.11.001]

    Kokhanovsky, A. A., J. L. Deuzé, D. J. Diner, et al. O. Dubovik, F. Ducos, C. Emde, M. J. Garay, R. G. Grainger, A. Heckel, M. Herman, I. L. Katsev, J. Keller, R. Levy, P. R. North, A. S. Prikhach, V. V. Rozanov, A. M. Sayer, Y. Ota, D. Tanré, G. E. Thomas, and E. P. Zege. 2010. "The inter-comparison of major satellite aerosol retrieval algorithms using simulated intensity and polarization characteristics of reflected light." Atmospheric Measurement Techniques 3 (4): 909-932 [10.5194/amt-3-909-2010]

    Jethva, H. T., S. Satheesh, J. Srinivasan, and R. C. Levy. 2010. "Improved retrieval of aerosol size-resolved properties from moderate resolution imaging spectroradiometer over India: Role of aerosol model and surface reflectance." Journal of Geophysical Research-Atmosphere 115 (D18213): [10.1029/2009JD013218]

    van Donkelaar, A., R. V. Martin, M. Brauer, et al. R. A. Kahn, R. C. Levy, C. Verduzco, and P. J. Villeneuve. 2010. "Global Estimates of Ambient Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth: Development and Application." Environ Health Perspectives 118 (6): 847-855 [10.1289/ehp.0901623]

    Levy, R. C., L. A. Remer, R. G. Kleidman, et al. S. Mattoo, C. M. Ichoku, R. A. Kahn, and T. F. Eck. 2010. "Global evaluation of the Collection 5 MODIS dark-target aerosol products over land." Atmos. Chem. Phys. 10 (21): 10399-10420 [10.5194/acp-10-10399-2010]

    Levy, R. C., G. Leptoukh, R. A. Kahn, et al. V. Zubko, A. Gopalan, and L. A. Remer. 2009. "A Critical Look at Deriving Monthly Aerosol Optical Depth From Satellite Data." IEEE Trans. Geosci. Remote Sensing 47 (8): 2942-2956 [10.1109/TGRS.2009.2013842]

    Redemann, J., Q. Zhang, J. Livingston, et al. P. Russell, Y. Shinozuka, A. Clark, R. Johnson, and R. C. Levy. 2009. "Testing aerosol properties in MODIS Collection 4 and 5 using airborne sunphotometer observations in INTEX-B/MILAGRO." Atmos. Chem. Phys. 9 (21): 8159-8172 [Full Text (Link)] [10.5194/acp-9-8159-2009]

    Kahn, R. A., D. Nelson, M. Garay, et al. R. C. Levy, M. Bull, J. Martonchik, D. Diner, S. Paradise, E. Hansen, and L. A. Remer. 2009. "MISR Aerosol Product Attributes and Statistical Comparisons With MODIS." IEEE Trans. Geosci. Remote Sensing 47 (12): 4095-4114 [10.1109/TGRS.2009.2023115]

    Karnieli, A., Y. Derimian, R. Indoitu, et al. N. Panov, R. Levy, L. Remer, W. Maenhaut, and B. N. Holben. 2009. "Temporal trend in anthropogenic sulfur aerosol transport from central and eastern Europe to Israel." J. Geophys. Res. 114 D00D19 [10.1029/2009JD011870]

    Remer, L. A., R. G. Kleidman, R. C. Levy, et al. Y. J. Kaufman, D. Tanre, S. Mattoo, J. V. Martins, C. M. Ichoku, I. Koren, H. Yu, and B. N. Holben. 2008. "Global aerosol climatology from the MODIS satellite sensors." J. Geophys. Res. 113 (D14): D14S07 [10.1029/2007JD009661]

    Kotchenova, S., E. F. Vermote, R. C. Levy, and A. I. Lyapustin. 2008. "Radiative transfer codes for atmospheric correction and aerosol retrieval: intercomparison study." Applied Optics 47 (13): 2215 [10.1364/AO.47.002215]

    Mi, W., Z. Li, X. Xia, et al. B. N. Holben, R. C. Levy, F. Zhao, H. Chen, and M. Cribb. 2007. "Evaluation of the Moderate Resolution Imaging Spectroradiometer aerosol products at two Aerosol Robotic Network stations in China." J Geophys Res 112 (D22S08): 14 pp [10.1029/2007JD008474]

    Levy, R. C., R. C. Levy, S. Mattoo, E. F. Vermote, and Y. Kaufman. 2007. "Second-generation operational algorithm: Retrieval of aerosol properties over land from inversion of Moderate Resolution Imaging Spectroradiometer spectral reflectance." J Geophys Res 112 (D13211): 21 pp [10.1029/2006JD007815]

    Levy, R. C., L. A. Remer, and O. Dubovik. 2007. "Global aerosol optical properties and application to Moderate Resolution Imaging Spectroradiometer aerosol retrieval over land." J. Geophys. Res. 112 (D13): [10.1029/2006jd007815]

    Levy, R. C., and R. T. Pinker. 2007. "Remote Sensing of Spectral Aerosol Properties: A Classroom Experience." Bulletin of the American Meteorological Society 88 (1): 25-30 [10.1175/bams-88-1-25]

    Kahn, R. A., W.-H. Li, C. Moroney, et al. D. J. Diner, J. V. Martonchik, E. Fishbein, and R. C. Levy. 2007. "Satellite-derived aerosol optical depth over dark water from MISR and MODIS: Comparisons with AERONET and implications for climatological studies." J. Geophys. Res. 112 (D18): D11205 [10.1029/2006JD008175]

    Redemann, J., B. Schmid, J. Eilers, et al. R. A. Kahn, R. C. Levy, P. Russell, J. Livingston, P. Hobbs, J. W. Smith, and B. N. Holben. 2005. "Suborbital Measurements of Spectral Aerosol Optical Depth and Its Variability at Subsatellite Grid Scales in Support of CLAMS 2001." J. Atmos. Sci. 62 (4): 993-1007 [10.1175/JAS3387.1]

    Levy, R. C., L. A. Remer, J. Martins, et al. Y. Kaufman, A. Plana-Fattori, J. Redemann, and B. Wenny. 2005. "Evaluation of the MODIS aerosol retrievals over ocean and land during CLAMS." J Atmos Sci 62 974-992 [10.1175/JAS3391.1]

    Remer, L. A., Y. Kaufman, D. Tanré, et al. S. Mattoo, D. Chu, J. Martins, R. Li, C. M. Ichoku, R. C. Levy, R. G. Kleidman, T. F. Eck, E. F. Vermote, and B. N. Holben. 2005. "The MODIS aerosol algorithm, products, and validation." J Atmos Sci 62 (4): 947-973 [10.1175/JAS3385.1]

    Vant-Hull, B., Z. Li, B. Taubman, et al. R. C. Levy, L. Manfu, F. Chang, and B. Doddridge. 2005. "Smoke over haze: Comparative analysis of satellite, surface radiometer, and airborne in situ measurements of aerosol optical properties and radiative forcing over the eastern United States." Journal of Geophysical Research 110 (D10): D10S21 [10.1029/2004jd004518]

    Kaufman, Y., L. A. Remer, D. Tanre, et al. R. Li, R. G. Kleidman, S. Mattoo, R. C. Levy, T. F. Eck, B. N. Holben, C. M. Ichoku, J. Martins, and I. Koren. 2005. "A critical examination of the residual cloud contamination and diurnal sampling effects on MODIS estimates of aerosol over ocean." IEEE Trans Geosci Remote Sens 43 (12): 2886-2897 [10.1109/TGRS.2005.858430]

    Chin, M., A. Chu, R. Levy, et al. L. Remer, Y. Kaufman, B. Holben, T. Eck, P. Ginoux, and Q. Gao. 2004. "Aerosol distribution in the Northern Hemisphere during ACE-Asia: Results from global model, satellite observations, and Sun photometer measurements." J. Geophys. Res. 109 (D23): [10.1029/2004jd004829]

    Levy, R. C., L. A. Remer, and Y. Kaufman. 2004. "Effects of neglecting polarization on the MODIS aerosol retrieval over land." IEEE Trans on Geoscience & Rem Sens 42 (11): 2576-2583 [10.1109/TGRS.2004.837336]

    Ichoku, C. M., Y. Kaufman, L. A. Remer, and R. C. Levy. 2004. "Global aerosol remote sensing from MODIS." Advances in Space Research 34 (4): 820-827 [10.1016/j.asr.2003.07.071]

    Levy, R. C., L. A. Remer, D. Tanre, et al. Y. J. Kaufman, C. M. Ichoku, B. N. Holben, J. M. Livingston, P. B. Russell, and J. Maring. 2003. "Evaluation of the Moderate-Resolution Imaging Spectroradiometer (MODIS) retrievals of dust aerosol over the ocean during PRIDE." Journal of Geophysical Research 108 (D19): 8594 [10.1029/2002jd002460]

    Ichoku, C. M., L. A. Remer, Y. J. Kaufman, et al. R. C. Levy, D.-C. A. Chu, D. Tanré, and B. N. Holben. 2003. "MODIS observation of aerosols and estimation of aerosol radiative forcing over southern Africa during SAFARI 2000." Journal of Geophysical Research-Atmos. 108 (D13): 8499 [10.1029/2002jd002366]

    Livingston, J., P. Russell, J. Reid, et al. J. Redemann, B. Schmid, D. Allen, O. Torres, R. Levy, L. Remer, B. Holben, A. Smirnov, O. Dubovik, E. J. Welton, J. Campbell, J. Wang, and S. Christopher. 2003. "Airborne Sun photometer measurements of aerosol optical depth and columnar water vapor during the Puerto Rico Dust Experiment and comparison with land, aircraft, and satellite measurements." J Geophys Res 108 (D19): 8588 [10.1029/2002JD002520]

    Colarco, P. R., O. Toon, J. Reid, et al. J. Livingston, P. Russell, J. Redemann, B. Schmid, H. Maring, D. Savoie, E. J. Welton, J. Campbell, B. N. Holben, and R. C. Levy. 2003. "Saharan dust transport to the Caribbean during PRIDE: 2. Transport, vertical profiles, and deposition in simulations of in situ and remote sensing observations." J. Geophys. Res. 108 (D19): 8590 [10.1029/2002JD002659]

    Ichoku, C. M., R. C. Levy, L. A. Remer, et al. J. V. Martins, B. N. Holben, N. K. Abuhassan, I. Slutsker, and T. F. Eck. 2002. "Analysis of the performance characteristics of the five-channel Microtops II Sun photometer for measuring aerosol optical thickness and precipitable water vapor." Journal of Geophysical Research 107 (D13): 4179 [10.1029/2001jd001302]

    Martins, J. V., D. Tanre, L. Remer, et al. Y. J. Kaufman, S. Mattoo, and R. C. Levy. 2002. "MODIS Cloud screening for remote sensing of aerosols over oceans using spatial variability." Geophysical Research Letters 29 (12): 8009 [10.1029/2001gl013252]

    Remer, L., D. Tanre, Y. Kaufman, et al. C. Ichoku, S. Matto, R. Levy, D. Chu, B. N. Holben, O. Dubovik, A. Smirnov, J. Martins, R. Li, and Z. Ahmad. 2002. "Validation of MODIS aerosol retrieval over ocean." Geophys Res Lett 29 (12): [10.1029/2001GL013204]

    Non-Refereed

    Lyapustin, A. I., X. Xiong, Y. Wang, et al. G. Meister, S. E. Platnick, R. C. Levy, B. A. Franz, A. Wu, and A. A. Angal. 2015. "MODIS Terra-Aqua C6+ Cross-Calibration Improvements ." GSICS Quarterly 9 (2): [10.7289/V5XK8CHN]

    Levy, R. C. 2013. "Growing up MODIS: Towards a mature aerosol climate data record." AIP Conference Proceedings 1531 (1): 31-34 [10.1063/1.4804700]

                                                                                                                                                                                            
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