Sudipta Sarkar

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Sudipta Sarkar

  • LDOPE Task Lead
  • Additional Roles: Senior Scientist
  • 301.614.6912
  • NASA/GSFC
  • Mail Code: 619
  • Greenbelt , MD 20771
  • Employer: SCIENCE SYSTEMS AND APPLICATIONS INC
  • Brief Bio

    Senior Earth Scientist and Remote Sensing Professional with more than 17 years of experience in studying different aspects of Earth System Science. Currently working as Sr. Scientist in the Terrestrial Information Systems Lab (Code-619) as part of MODIS LDOPE and VIIRS Land SIPS. Active research interests include looking at land-atmosphere interactions, natural hazards and air quality, long-term change monitoring and implications for climate change.

    Research Interests

    Research Interests

    • Natural Hazards and Impact of Climate Change
    • Long term change detection using Remote sensing 
    • Land Atmosphere Interactions
    • Interannual variability of climate parameteres and role of human impact

    Positions/Employment

    12/2014 - Present

    Sr. Scientist/ Developer

    SSAI, NASA GSFC (Code 619)

    Develop and validate multiple land science products, derived from NASA EOS and JPSS series of satellite missions like MODIS, Suomi NPP etc. Work closely with different science teams and institutions to develop land algorithms, QA/QC data products, perform systematic data validation and analysis and inter-sensor comparison. 

    Research interests include leveraging satellite data to study the impact of climate change on land and atmospheric processes and their mutual feedback. Role of human impact in driving these land atmospheric feedback mechanisms and its steady evolution over the years. 
     

    2/2012 - 12/2014

    Senior Scientist/Developer

    Sigma Space Corp., NASA GSFC

    Member of the Terrestrial Information Systems Lab., in GSFC, as part of MODIS LDOPE/NPP LPEATE.  Responsible for development of land algorithms for development of scientific datasets from L1B - L3/L4 for all land related parameters and covering the entire globe, derived from MODIS Terra/Aqua and NPP VIIRS. Responsible for validation of land products. Research focus includes the study of land surface processes and their interaction, leveraging satellite data. 

    12/2004 - 12/2011

    Lead Analyst

    Lanworth/Thomson Reuters, Chicago, IL

    Plays a leading role in developing workflow and algorithms for providing commodity intelligence to hedge fund
    managers, traders and global food companies for major commodity crops like corn, soybean, wheat, cane, canola etc across diverse regions of the globe in USA, Canada, Russia, India, South America and China using geospatial technology.
     

    Lead and manage diverse services/consulting projects involving the use of geospatial technology for better strategic and supply chain analysis. This involved spatial mapping of land-cover, hbu potential, natural hazards,
    environmental and atmospheric parameters across diverse geographic scales using a plethora of sensors operating in visible to microwave ranges. Also involved large scale land due-diligence studies for different timber merchants and paper companies.
     

    3/2001 - 12/2004

    Graduate Research Assistant

    School of Computational Science, George Mason University, Fairfax, VA, USA
    • Designed and executed a number of critical and pioneering research studies aimed at better understanding different aspects of the biosphere, hydrosphere and atmosphere with their respective interactions over inter- annual to decadal time scales. Specifically: • Performed extensive research focusing on possible feedback of land cover and soil moisture on the hydrological cycle and monsoon rainfall over South East Asia. This research combined observational data analysis with comprehensive land surface modeling in an effort to understand the scale of coupling and underlying physics. A part of this research was carried out in NASA Goddard (GSFC).
    • Investigated the inter-annual variability of vegetation and aerosol radiative forcing over Indian sub-continent.
    • Investigated the variability of monsoon rainfall over South Asia and decreasing influence of ENSO vis-à-vis monsoon rainfall.
    5/2004 - 8/2004

    Internship

    Hydrological Sciences Branch, NASA GSFC, Greenbelt, MD, USA

    Perform land surface modeling to understand the interaction between land-cover and atmosphere. The research was aimed at better predicting the changes in hydrological cycle and monsoonal precipitation because of changes in Land Surface.

    10/1999 - 7/2000

    Sr. Project Associate

    Dept. of Civil Engineering, IIT Kanpur, Kanpur, India

    Involved in extensive research of climate parameters and their variability over the Indian sub-continent, specifically snow-cover, tropospheric ozone and aerosol. The possible teleconnection pattern of pacific disturbance over Indian sub-continent was thoroughly explored with the aid of datasets from SSM/I, TOMS, GOME etc.

    Education

    PhD in Computational Sciences with specialization in Earth Observation and Remote Sensing - 2004, George Mason University

    M.S. in Computational Sciences with specialization in Earth Observation and Remote Sensing - 2003, George Mason University

    M.tech in Earth Sciences - 1998, IIT Roorkee, India

    B.Sc in Geology - 1995, University of Calcutta, India

    Professional Societies

    American Geophysical Society, 2014 - Present

    Professional Service

    Member of the Editorial Board:

    Reviewer for Several Peer reviewed Journals like:

    • Journal of Climate
    • Remote Sensing
    • International Journal of Remote Sensing
    • Geomatics, Natural Hazards and Risk
    • Water, Air, & Soil Pollution
    • Sustainability
    • International Journal of Geo-Information 
    • The Scientific Pages of Forest Research
    • Indian Journal of Remote Sensing

    Awards

    1. NASA HOBI award - 2016
    2. Best Performance award from SSAI in 2015.

    Other Professional Information

    News Item Links:

    1. Times of India (https://goo.gl/14UvpM)
    2. The Hindu Business Line (https://goo.gl/wAezUD)
    3. Weather.com (https://goo.gl/ZNZdL1)
    4. Nature Asia (https://goo.gl/ppXN7t)
    5. Firstpost (https://goo.gl/wY8JxL)
    6. Paper Dabba (https://goo.gl/XUNu2k)
    7. Firstpost Hindi Version (https://goo.gl/rm61zo)
    8. The Hindustan Times (https://goo.gl/RNaQEe)

    Publications

    Refereed

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Anomalous changes in meteorological parameters along the track of 2017 Hurricane Harvey." Remote Sensing Letters, 9 (5): 488-497 [10.1080/2150704x.2018.1441562]

    Román, M. O., Z. Wang, Q. Sun, et al. V. Kalb, S. D. Miller, A. Molthan, L. Schultz, J. Bell, E. C. Stokes, B. Pandey, K. C. Seto, D. Hall, T. Oda, R. E. Wolfe, G. Lin, N. Golpayegani, S. Devadiga, C. Davidson, S. Sarkar, C. Praderas, J. Schmaltz, R. Boller, J. Stevens, O. M. Ramos González, E. Padilla, J. Alonso, Y. Detrés, R. Armstrong, I. Miranda, Y. Conte, N. Marrero, K. MacManus, T. Esch, and E. J. Masuoka. 2018. "NASA's Black Marble nighttime lights product suite." Remote Sensing of Environment, 210: 113-143 [Full Text (Link)] [10.1016/j.rse.2018.03.017]

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Crop Residue Burning in Northern India: Increasing Threat to Greater India." Journal of Geophysical Research: Atmospheres, [10.1029/2018jd028428]

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Increasing health threat to greater parts of India due to crop residue burning." The Lancet Planetary Health, 2 (8): e327-e328 [10.1016/s2542-5196(18)30166-9]

    Pahlevan, N., S. Balasubramanian, S. Sarkar, and B. Franz. 2018. "Toward Long-Term Aquatic Science Products from Heritage Landsat Missions." Remote Sensing, 10 (9): 1337 [10.3390/rs10091337]

    Kim, B., and S. Sarkar. 2017. "Impact of wildfires on some greenhouse gases over continental USA: A study based on satellite data." Remote sensing of Environment, 188 (1): 118--126 [10.1016/j.rse.2016.10.047]

    Pahlevan, N., S. Sarkar, S. Devadiga, et al. R. E. Wolfe, M. Roman, E. Vermote, G. Lin, and X. Xiong. 2017. "Impact of Spatial Sampling on Continuity of MODIS–VIIRS Land Surface Reflectance Products: A Simulation Approach." IEEE Transactions on Geoscience and Remote Sensing, 55 (1): 183-196 [10.1109/tgrs.2016.2604214]

    Sarkar, S., and R. P. Singh. 2017. "June 19 2015 Rainfall Event Over Mumbai: Some Observational Analysis." Journal of the Indian Society of Remote Sensing, 45 (1): 185-192 [10.1007/s12524-016-0572-7]

    Singh, R. P., and S. Sarkar. 2017. "Methane and Carbon Monoxide emissions associated with Aliso Canyon ground storage blowout." 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Austin, Texas, 2017: 5950-5953 [10.1109/IGARSS.2017.8128364]

    Sarkar, S. 2017. "Phenology and carbon fixing: a satellite-based study over Continental USA." International Journal of Remote Sensing, 39 (1): 1-16 [10.1080/01431161.2017.1378457]

    Pahlevan, N., S. Sarkar, B. A. Franz, S. Velaudhaperumal Balasubramanian, and J. He. 2017. "Sentinel-2 MultiSpectral Instrument (MSI) data processing for aquatic science applications: Demonstrations and validations." Remote Sensing of Environment, 201: 47-56 [10.1016/j.rse.2017.08.033]

    Pahlevan, N., S. Sarkar, and B. A. Franz. 2016. "Uncertainties in coastal ocean color products: Impacts of spatial sampling." Remote Sensing of Environment, 181: 14-26 [10.1016/j.rse.2016.03.022]

    Friedenberg, N. A., S. Sarkar, N. Kouchoukos, R. F. Billings, and M. P. Ayres. 2008. "Temperature extremes, density dependence, and southern pine beetle (Coleoptera: Curculionidae) population dynamics in east Texas." Environmental Entomology, 37 (3): 650--659.

    Sarkar, S., L. Chiu, M. Kafatos, and R. Singh. 2007. "Sensitivity of rainfall on land cover change over South East Asia: Some observational results." Advances in Space Research, 39 (1): 73--78.

    Prasad, A. K., S. Sarkar, R. P. Singh, and M. Kafatos. 2007. "Inter-annual variability of vegetation cover and rainfall over India." Advances in space research, 39 (1): 79--87.

    Sarkar, S., R. Chokngamwong, G. Cervone, R. Singh, and M. Kafatos. 2006. "Variability of aerosol optical depth and aerosol forcing over India." Advances in Space Research, 37 (12): 2153--2159.

    Sahoo, A., S. Sarkar, R. Singh, M. Kafatos, and M. Summers. 2005. "Declining trend of total ozone column over the northern parts of India." International Journal of Remote Sensing, 26 (16): 3433--3440.

    Dey, S., S. Sarkar, and R. Singh. 2004. "Comparison of aerosol radiative forcing over the Arabian Sea and the Bay of Bengal." Advances in Space Research, 33 (7): 1104--1108.

    el-Askary, H., S. Sarkar, L. Chiu, M. Kafatos, and T. El-Ghazawi. 2004. "Rain gauge derived precipitation variability over Virginia and its relation with the El Nino southern oscillation." Advances in Space Research, 33 (3): 338--342.

    Sarkar, S., R. P. Singh, and M. Kafatos. 2004. "Further evidences for the weakening relationship of Indian rainfall and ENSO over India." Geophysical Research Letters, 31 (13):

    Dey, S., S. Sarkar, and R. Singh. 2004. "Anomalous changes in column water vapor after Gujarat earthquake." Advances in Space Research, 33 (3): 274--278.

    Sarkar, S., and M. Kafatos. 2004. "Interannual variability of vegetation over the Indian sub-continent and its relation to the different meteorological parameters." Remote Sensing of Environment, 90 (2): 268--280.

    El-Askary, H. M., S. Sarkar, M. Kafatos, and T. A. El-Ghazawi. 2003. "A multisensor approach to dust storm monitoring over the Nile Delta." IEEE Transactions on geoscience and Remote Sensing, 41 (10): 2386--2391.

    Singh, R., S. Sarkar, and A. Singh. 2002. "Effect of El Nino on inter-annual variability of ozone during the period 1978-2000 over the Indian subcontinent and China." International journal of remote sensing, 23 (12): 2449--2456.

    Mishra, N., R. Kanwar, S. Sarakar, P. Dash, and R. Singh. 2002. "Use of multi-sensor data for mapping of thar desert." Advances in Space Research, 29 (1): 51-55 [10.1016/s0273-1177(01)00627-5]

    Singh, R. P., S. Sarkar, and A. Singh. 2000. "Effect of El Niaeo observed over Indian continent from satellite-derived ozone data." Eos, Transactions American Geophysical Union, 81 (36): 409--413.

    Sarkar, S., and R. P. Singh. 2000. "Inter-annual variability of total ozone deduced from GOME and its relation to observed El Nino of 1997-1998." Current Science, 79 (1): 79--81.

    Non-Refereed

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Crop residue burning affects large parts of India." Nature India [10.1038/nindia.2018.78]

    Talks, Presentations and Posters

    LONG RANGE TRANSPORT OF AIR MASS FROM THE CROP RESIDUE BURNING (WESTERN PARTS OF INDIA) DURING WINTER SEASON AND ITS IMPACTS ON HUMAN HEALTH AND WEATHER CONDITIONS OVER THE INDO-GANGETIC PLAINS (IGP)

    7 / 16 / 2018

    Chauhan A, Sarkar S, Gautam G, and Singh R. 42nd COSPAR Scientific Assembly, 2018, Pasadena, California

    Changes in Land, Ocean, Meteorological and Atmospheric Parameters Along the Harvey Hurricane Track Observed from GPS, Buoys and Satellite Data

    5 / 22 / 2018

    Singh R, Sarkar S and Chauhan A. JpGU 2018 (Japan Geoscience Union) at Chiba, Japan

    Landsat-Sentinel-2 for aquatic science: Steps towards transitioning from research to operations

    2018

    Pahlevan N, Sarkar S, Chittimalli S and Subramanian S.  Pecora 20, November 13-17, 2017, Sioux Falls, South Dakota.

    Over-water inter-calibration and atmosphere correction for Landsat-8/Sentinel-2

    9 / 19 / 2017

    Pahlevan N, Sarkar S and Chittimali S. Recent Advances in Quantitative Remote Sensing (RAQRS) Torrent, Spain 2017

    Methane and Carbon Monoxide Emissions Associated with Aliso Canyon Ground Storage Blowout

    7 / 2017

    IEEE IGARSS 2017, Austin, Texas, USA

    Towards Consistent Landsat-Sentinel-2 Products over Coastal/Inland Waters

    5 / 16 / 2017

    Pahlevan N, Sarkar S, Chittimalli S and Subramanian S. Third International Ocean Colour Science Meeting (IOCS) Lisbon, Portugal, 15-18 May 2017

    Urban area monitoring using MODIS time series data

    12 / 2014

    Sarkar, S, Devadiga, S and Masuoka, E., AGU Fall Meeting - 2014

    Spatial-Temporal-Vertical Variations of Total Ozone Concentration (TOC) and its Relationship to Other Meteorological Parameters Over the Indo-Gangetic Basin

    3 / 2006

    Sahoo, AK and Sarkar, S and Singh, RP and Kafatos, M, AGU Spring Meeting

    Vegetation Variability And Its Effect On Monsoon Rainfall Over South East Asia: Observational and Modeling Results

    12 / 2005

    Sarkar, S and Peters-Lidard, C and Chiu, L and Kafatos, M, AGU Fall meeting - 2005

    Land cover change and its impact on annual rainfall over South East Asia

    2004

    Sarkar, S and Chiu, L and Kafatos, M and Singh, 35th COSPAR Scientific Assembly

    Early Warning of Coastal Earthquakes Using Land, Ocean and Atmospheric Parameters

    12 / 2003

    Singh, RP and Dey, S and Sarkar, S and Kafatos, M, AGU Fall Meeting - 2003

    Brief Bio

    Senior Earth Scientist and Remote Sensing Professional with more than 17 years of experience in studying different aspects of Earth System Science. Currently working as Sr. Scientist in the Terrestrial Information Systems Lab (Code-619) as part of MODIS LDOPE and VIIRS Land SIPS. Active research interests include looking at land-atmosphere interactions, natural hazards and air quality, long-term change monitoring and implications for climate change.

    Publications

    Refereed

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Anomalous changes in meteorological parameters along the track of 2017 Hurricane Harvey." Remote Sensing Letters 9 (5): 488-497 [10.1080/2150704x.2018.1441562]

    Román, M. O., Z. Wang, Q. Sun, et al. V. Kalb, S. D. Miller, A. Molthan, L. Schultz, J. Bell, E. C. Stokes, B. Pandey, K. C. Seto, D. Hall, T. Oda, R. E. Wolfe, G. Lin, N. Golpayegani, S. Devadiga, C. Davidson, S. Sarkar, C. Praderas, J. Schmaltz, R. Boller, J. Stevens, O. M. Ramos González, E. Padilla, J. Alonso, Y. Detrés, R. Armstrong, I. Miranda, Y. Conte, N. Marrero, K. MacManus, T. Esch, and E. J. Masuoka. 2018. "NASA's Black Marble nighttime lights product suite." Remote Sensing of Environment 210 113-143 [Full Text (Link)] [10.1016/j.rse.2018.03.017]

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Crop Residue Burning in Northern India: Increasing Threat to Greater India." Journal of Geophysical Research: Atmospheres [10.1029/2018jd028428]

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Increasing health threat to greater parts of India due to crop residue burning." The Lancet Planetary Health 2 (8): e327-e328 [10.1016/s2542-5196(18)30166-9]

    Pahlevan, N., S. Balasubramanian, S. Sarkar, and B. Franz. 2018. "Toward Long-Term Aquatic Science Products from Heritage Landsat Missions." Remote Sensing 10 (9): 1337 [10.3390/rs10091337]

    Kim, B., and S. Sarkar. 2017. "Impact of wildfires on some greenhouse gases over continental USA: A study based on satellite data." Remote sensing of Environment 188 (1): 118--126 [10.1016/j.rse.2016.10.047]

    Pahlevan, N., S. Sarkar, S. Devadiga, et al. R. E. Wolfe, M. Roman, E. Vermote, G. Lin, and X. Xiong. 2017. "Impact of Spatial Sampling on Continuity of MODIS–VIIRS Land Surface Reflectance Products: A Simulation Approach." IEEE Transactions on Geoscience and Remote Sensing 55 (1): 183-196 [10.1109/tgrs.2016.2604214]

    Sarkar, S., and R. P. Singh. 2017. "June 19 2015 Rainfall Event Over Mumbai: Some Observational Analysis." Journal of the Indian Society of Remote Sensing 45 (1): 185-192 [10.1007/s12524-016-0572-7]

    Singh, R. P., and S. Sarkar. 2017. "Methane and Carbon Monoxide emissions associated with Aliso Canyon ground storage blowout." 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Austin, Texas 2017 5950-5953 [10.1109/IGARSS.2017.8128364]

    Sarkar, S. 2017. "Phenology and carbon fixing: a satellite-based study over Continental USA." International Journal of Remote Sensing 39 (1): 1-16 [10.1080/01431161.2017.1378457]

    Pahlevan, N., S. Sarkar, B. A. Franz, S. Velaudhaperumal Balasubramanian, and J. He. 2017. "Sentinel-2 MultiSpectral Instrument (MSI) data processing for aquatic science applications: Demonstrations and validations." Remote Sensing of Environment 201 47-56 [10.1016/j.rse.2017.08.033]

    Pahlevan, N., S. Sarkar, and B. A. Franz. 2016. "Uncertainties in coastal ocean color products: Impacts of spatial sampling." Remote Sensing of Environment 181 14-26 [10.1016/j.rse.2016.03.022]

    Friedenberg, N. A., S. Sarkar, N. Kouchoukos, R. F. Billings, and M. P. Ayres. 2008. "Temperature extremes, density dependence, and southern pine beetle (Coleoptera: Curculionidae) population dynamics in east Texas." Environmental Entomology 37 (3): 650--659

    Sarkar, S., L. Chiu, M. Kafatos, and R. Singh. 2007. "Sensitivity of rainfall on land cover change over South East Asia: Some observational results." Advances in Space Research 39 (1): 73--78

    Prasad, A. K., S. Sarkar, R. P. Singh, and M. Kafatos. 2007. "Inter-annual variability of vegetation cover and rainfall over India." Advances in space research 39 (1): 79--87

    Sarkar, S., R. Chokngamwong, G. Cervone, R. Singh, and M. Kafatos. 2006. "Variability of aerosol optical depth and aerosol forcing over India." Advances in Space Research 37 (12): 2153--2159

    Sahoo, A., S. Sarkar, R. Singh, M. Kafatos, and M. Summers. 2005. "Declining trend of total ozone column over the northern parts of India." International Journal of Remote Sensing 26 (16): 3433--3440

    Dey, S., S. Sarkar, and R. Singh. 2004. "Comparison of aerosol radiative forcing over the Arabian Sea and the Bay of Bengal." Advances in Space Research 33 (7): 1104--1108

    el-Askary, H., S. Sarkar, L. Chiu, M. Kafatos, and T. El-Ghazawi. 2004. "Rain gauge derived precipitation variability over Virginia and its relation with the El Nino southern oscillation." Advances in Space Research 33 (3): 338--342

    Sarkar, S., R. P. Singh, and M. Kafatos. 2004. "Further evidences for the weakening relationship of Indian rainfall and ENSO over India." Geophysical Research Letters 31 (13):

    Dey, S., S. Sarkar, and R. Singh. 2004. "Anomalous changes in column water vapor after Gujarat earthquake." Advances in Space Research 33 (3): 274--278

    Sarkar, S., and M. Kafatos. 2004. "Interannual variability of vegetation over the Indian sub-continent and its relation to the different meteorological parameters." Remote Sensing of Environment 90 (2): 268--280

    El-Askary, H. M., S. Sarkar, M. Kafatos, and T. A. El-Ghazawi. 2003. "A multisensor approach to dust storm monitoring over the Nile Delta." IEEE Transactions on geoscience and Remote Sensing 41 (10): 2386--2391

    Singh, R., S. Sarkar, and A. Singh. 2002. "Effect of El Nino on inter-annual variability of ozone during the period 1978-2000 over the Indian subcontinent and China." International journal of remote sensing 23 (12): 2449--2456

    Mishra, N., R. Kanwar, S. Sarakar, P. Dash, and R. Singh. 2002. "Use of multi-sensor data for mapping of thar desert." Advances in Space Research 29 (1): 51-55 [10.1016/s0273-1177(01)00627-5]

    Singh, R. P., S. Sarkar, and A. Singh. 2000. "Effect of El Niaeo observed over Indian continent from satellite-derived ozone data." Eos, Transactions American Geophysical Union 81 (36): 409--413

    Sarkar, S., and R. P. Singh. 2000. "Inter-annual variability of total ozone deduced from GOME and its relation to observed El Nino of 1997-1998." Current Science 79 (1): 79--81

    Non-Refereed

    Sarkar, S., R. P. Singh, and A. Chauhan. 2018. "Crop residue burning affects large parts of India." Nature India [10.1038/nindia.2018.78]

                                                                                                                                                                                            
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