Sciences and Exploration Directorate

Manh-Hung Le

(Program Analyst)

Manh-Hung Le's Contact Card & Information.
Phone: 301.614.6384
Org Code: 617
Mail Code 617
Greenbelt, MD 20771

Brief Bio

Dr. Le is an Associate Research Scientist at SAIC (Science Applications International Corp.) and a contractor in the Hydrological Sciences Laboratory at NASA Goddard Space Flight Center. He is involved in numerous projects at the intersection of remote sensing, hydrology, and agriculture, with an emphasis on the science application of the Soil Moisture Active and Passive (SMAP) mission. Prior to his current roles, he worked as a hydrologist at the Vietnam National Center for Water Resources Planning and Investigation (NAWAPI), and obtained a Ph.D. in Civil Engineering from the University of Virginia.

Current Projects

Dynamic Agricultural Productivity Indicator

Develop a SMAP-based NDVI forecasting index to support vegetation health monitoring and crop yield forecasting

Upper Missouri River Basin Data Value Study.

Assess whether using Upper Missouri River Basin observational data to adjust the SMAP (Soil Moisture Active Passive) satellite data assimilation can provide improved model characterizations of fire-prone landscapes.


Research Scientist Associate

SAIC/ NASA Goddard - Greenbelt, MD

June 2022 - Present


National Central for Water Resources Planning and Investigation (NAWAPI) - Hanoi, Vietnam

November 2016 - July 2018


PhD: Evaluation of Publicly-Available Global Hydrologic Datasets to Improve Water Resources Management in Vietnam

University of Virginia, Department of Engineering Systems and Environment, 2022

William L. Ballard Jr. Endowed Fellowship for academic excellence in the University of Virginia School of Engineering and Applied Science

Primary advisor: Venkataraman Lakshmi

MSc: Analysis of drought forecasting based on ENSO and PDO indices for a case study in Vietnam South Central Region

UNESCO-IHE, Flood Risk Management Program, 2016

Erasmus Mundus Scholarship for Master program, Category A, European Commission

Primary advisor: Vicente Medina (UPC Universitat Politècnica de Catalunya) and Gerald Corzo (UNESCO-IHE)


Hohai University, College of Hydrology and Water Resources, 2013

Vietnam Government Scholarship for Undergraduate Student, Vietnam Ministry of Education and Training (the 322 project)

Professional Service

  • Journal reviewers for IEEE Transactions on Geoscience and Remote Sensing, Journal of Hydrology, Journal of Hydrology: Regional Studies, Journal of the American Water Resources Association, Natural Hazards, Environmental Earth Sciences, Remote Sensing, Hydrology, Climate.
  • Reviewer Board for Remote Sensing, Climate
  • External Reviewer for ROSES proposal



2024. "Uncertain Benefits of Using Remotely Sensed Evapotranspiration for Streamflow Estimation—Insights From a Randomized, Large-Sample Experiment." Water Resources Management [10.1007/s11269-024-03840-w] [Journal Article/Letter]

2024. "A Framework on Utilizing of Publicly Availability Stream Gauges Datasets and Deep Learning in Estimating Monthly Basin-scale Runoff in Ungauged Regions." Advances in Water Resources 104694 [10.1016/j.advwatres.2024.104694] [Journal Article/Letter]

2024. "Future Changes in Hydro-Climatic Extremes across Vietnam: Evidence from a Semi-Distributed Hydrological Model Forced by Downscaled CMIP6 Climate Data." Water 16 (5): 674 [10.3390/w16050674] [Journal Article/Letter]

2023. "Spatiotemporal characterization of droughts and vegetation response in Northwest Africa from 1981 to 2020." The Egyptian Journal of Remote Sensing and Space Science 26 (3): 393-401 [10.1016/j.ejrs.2023.05.006] [Journal Article/Letter]

2023. "Robustness of gridded precipitation products for vietnam basins using the comprehensive assessment framework of rainfall." Atmospheric Research 293 106923 [10.1016/j.atmosres.2023.106923] [Journal Article/Letter]

2023. "Regional analysis of the 2015–16 Lower Mekong River basin drought using NASA satellite observations." Journal of Hydrology: Regional Studies 46 101362 [10.1016/j.ejrh.2023.101362] [Journal Article/Letter]

2022. "Quantification of global Digital Elevation Model (DEM) – A case study of the newly released NASADEM for a river basin in Central Vietnam." Journal of Hydrology: Regional Studies 45 101282 [10.1016/j.ejrh.2022.101282] [Journal Article/Letter]

2022. "Land use, climate, and water change in the Vietnamese Mekong Delta (VMD) using earth observation and hydrological modeling." Journal of Hydrology: Regional Studies 42 101132 [10.1016/j.ejrh.2022.101132] [Journal Article/Letter]

2022. "Assessment of drought conditions over Iraqi transboundary rivers using FLDAS and satellite datasets." Journal of Hydrology: Regional Studies 41 101075 [10.1016/j.ejrh.2022.101075] [Journal Article/Letter]

2022. "Assimilation of SMAP Products for Improving Streamflow Simulations over Tropical Climate Region—Is Spatial Information More Important Than Temporal Information?." Remote Sensing 14 (7): 1607 [10.3390/rs14071607] [Journal Article/Letter]

2020. "Assessment of drought conditions over Vietnam using standardized precipitation evapotranspiration index, MERRA-2 re-analysis, and dynamic land cover." Journal of Hydrology: Regional Studies 32 100767 [10.1016/j.ejrh.2020.100767] [Journal Article/Letter]

2020. "Adequacy of Satellite-derived Precipitation Estimate for Hydrological Modeling in Vietnam Basins." Journal of Hydrology 586 124820 [10.1016/j.jhydrol.2020.124820] [Journal Article/Letter]

2018. "Comparison and Bias Correction of TMPA Precipitation Products over the Lower Part of Red–Thai Binh River Basin of Vietnam." Remote Sensing 10 (10): 1582 [10.3390/rs10101582] [Journal Article/Letter]

Talks, Presentations and Posters


On the use of SMAP Soil Moisture for Forecasting NDVI Over CONUS Cropland Regions (Virtual)

June 8, 2024

Invited Speaker for The 2024 AGU-KWRA and Hydrology Session

Integration of Remote Sensing in Hydrology and Agriculture

April 28, 2024

Invited Lecture for the CE6500 class (Remote Sensing for Environmental Engineers) at the University of Virginia, Charlottesville, VA.

Analysis of Soil Moisture Dynamics for Two Extreme Rainfall Events at Central Iowa (Virtual)

February 24, 2024

Invited Speaker for AGU Fall Meeting 2023 Scientific Workshop

Integration of Modeling and Data Collection for Mekong River Basin Leveraging NASA Satellite Missions (Virtual)

November 2022

Invited Speaker in Vietnamese Academic Network in Japan (VANJ) Special 2022 No.2 Water Resources