An interdisciplinary research scientist, I hold a Ph.D. in Earth and Planetary Sciences from Johns Hopkins University, along with an M.A. in the same field, an M.E. in Civil and Environmental Engineering from Colorado State University, and an M.Sc. and B.Sc. in Civil Engineering from Cairo University. My expertise lies in the innovative application of satellite-based remote sensing products and land surface modeling systems for hydrometeorological research. My research interests and contributions focus significantly on flash droughts, specifically in the areas of characterization, predictability, and the influence of vegetation on their evolution. I have been actively involved in projects aiming to develop a deeper understanding of flash drought dynamics, from the diagnostic classification of events to the exploration of their impact on the carbon cycle. I have contributed to the scientific community through peer-reviewed publications, technical reports, and presentations at workshops and conferences, documenting research findings and dataset development. My career highlights include numerous honors and awards, such as the Best Early Career Research Award and various fellowships and scholarships. I am passionate about teaching and have had the opportunity to lecture and instruct at prestigious institutions. Under the guidance of my advisors, I have gained valuable experience in coordinating research projects and ensuring their alignment with funding agency objectives. I have had the opportunity to contribute to research projects funded by esteemed organizations such as NASA, the National Science Foundation, and the U.S. Department of Energy, reflecting my dedication to advancing scientific knowledge.
Mahmoud Osman
(Research Scientist)
Email: | mahmoud.a.osman@nasa.gov |
Phone: | 000.000.0000 |
Org Code: | 619 |
Address: |
NASA/GSFC Mail Code 619 Greenbelt, MD 20771 |
Employer: | UNIV OF MARYLAND COLLEGE PARK |
Brief Bio
Research Interests
Land-Atmosphere interactions
Hydroclimatology
Droughts
Current Projects
Famine Early Warning Systems Network (FEWS NET)
Food Security
Led by Amy McNally, to help provide early warning and analysis on acute food insecurity around the world.
FEWS NET monitors and provides early warning analysis of ongoing, imminent, or emerging threats to food security and maintains the flexibility to analyze unanticipated crises around the world. FEWS NET operates and maintains networks in countries with known or likely acute food insecurity and draws on enhanced skills to forecast future acute food insecurity.
Land cover and land use feedbacks to onset and amplification of drought
Modeling and Dynamics
The role of vegetation-atmosphere interactions in the development of flash droughts is not well understood. Hence, we develop land digital twins for LULC by infusing various relevant satellite and land surface data, followed by forcing the NU-WRF model with these data for a series of sensitivity experiments to determine key drivers of flash drought development in the central US with particular focus on vegetation-atmosphere interactions. I am responsible for all aspects of the project and will be responsible for completing the tasks defined in this proposal and supervising the undergraduate student research assistant.
Vegetation as a mediator of flash drought and predictability on S2S time scales
Flash droughts -events characterized by a period of rapid intensification over a few weeks - are climate hazards that cause significant economic and ecological impacts, including reduced crop yields and increased risk of wildfires. The goals of this project are to: (1) characterize vegetation dynamics relevant to flash drought onset and intensification, (2) evaluate representation of these processes in an Earth System model, and (3) assess the importance of these processes relative to other sources of uncertainty in ensemble S2S forecasts of flash drought.
Positions/Employment
Research Scientist
NASA - GSCF (UMD ESSIC) - Greenbelt, MD
December 2024 - Present
Research Scientist
Johns Hopkins University - Baltimore, MD
April 2023 - November 2024
Postdoctoral Fellow
Johns Hopkins University - Baltimore, MD
April 2021 - April 2023
Graduate Research Assistant
Johns Hopkins University - Baltimore, MD
June 2017 - April 2021
Graduate Research Assistant
Colorado State University - Fort Collins, CO
July 2015 - June 2017
Teaching Assistant
Cairo University - Cairo, Egypt
September 2013 - July 2015
Teaching Experience
2023 Lecturer of “Present and Future Climate” – Johns Hopkins University, MD
2022 Instructor of “Principle of Engineering Design” – JHU CTY – Franklin & Marshall College, PA.
2021 Lecturer of “Principles of Irrigation and Drainage” – Cairo University, Egypt.
2018 Teaching Institute 18 – Johns Hopkins University, MD.
2015 Credit Hours System workshop – Cairo University, Egypt.
2015 Effective Teaching Skills workshop – Cairo University, Egypt.
2015 Students’ Testing and Evaluation workshop – Cairo University, Egypt.
2014 Quality Standards in Teaching Process – Cairo University, Egypt.
2013 – 2015 Teaching assistant – Cairo University, Egypt:
- Fluid mechanics (Fall 2013, Fall 2014)
- Engineering hydraulics (Fall 2013)
- Introduction to water resource (Fall 2013, Fall 2014)
- Environmental and municipal hydraulics (Fall 2014)
- Computational water and wastewater networks (Spring 2014, Spring 2015)
- Engineering drawing (Spring 2015)
Education
2021 PhD – Earth and Planetary Sciences – Johns Hopkins University, MD, USA.
2018 MA – Earth and Planetary Sciences – Johns Hopkins University, MD, USA.
2017 ME – Civil and Environmental Engineering – Colorado State University, CO, USA.
2015 MSc – Irrigation and Hydraulics – Civil Engineering – Cairo University, Egypt.
2013 BSc – Water and Environmental Engineering – Civil Engineering – Cairo University, Egypt.
Professional Societies
American Geophysical Union (AGU)
2017 - Present
American Meteorological Society (AMS)
2018 - Present
Professional Service
- Judging Committee member – Hydrology graduation project – Cairo University
- Co-chair of the 37th Conference on Hydrology - AMS 2023, Denver, CO.
- Peer reviewer for Water Resources Research journal (WRR).
- Peer reviewer for Environmental Research Letters journal (ERL).
- Peer reviewer for Journal of Hydrometeorology (JHM).
- Peer reviewer for Journal of Geophysical Research Letter (GRL).
- Peer reviewer for Nature NPJ Journal of Climate and Atmospheric Sciences.
Awards
2023 Best Early Career Research Award – Johns Hopkins University.
2022 Certificate of appreciation of service. Johns Hopkins CTY 2022 Lancaster.
2017 - 2021 Earth and Planetary Science department Fellowship, Johns Hopkins University
2017 Irrigation foundation E3 Program Scholarship
2016 - 2017 Whitney Borland Advanced Student Graduate Scholarship.
2016 - 2017 Bob and Joan Meroney Scholarship
2015 - 2016 Whitney Borland New Student Graduate Scholarship.
2009 - 2013 Excellence Full Tuition Fees Scholarship
Selected Publications
Refereed
2024. "A global flash drought inventory based on soil moisture volatility." Scientific Data 11 (1): 965 [10.1038/s41597-024-03809-9] [Journal Article/Letter]
2024. "Antecedent Conditions Mitigate Carbon Loss During Flash Drought Events." Geophysical Research Letters 51 (8): [10.1029/2024gl108310] [Journal Article/Letter]
2023. "SMVI Global Flash Droughts Dataset." HydroShare Resources [10.4211/hs.080002bd7cc44242bb37c02b049ed532] [Dataset]
2022. "Cascading Drought‐Heat Dynamics During the 2021 Southwest United States Heatwave." Geophysical Research Letters 49 (12): [10.1029/2022gl099265] [Journal Article/Letter]
2022. "Diagnostic Classification of Flash Drought Events Reveals Distinct Classes of Forcings and Impacts." Journal of Hydrometeorology 23 (2): 275-289 [10.1175/jhm-d-21-0134.1] [Journal Article/Letter]
2021. "Optimizing Regional Climate Model Output for Hydro-Climate Applications in the Eastern Nile Basin." Earth Systems and Environment 5 (2): 185-200 [10.1007/s41748-021-00222-9] [Journal Article/Letter]
2021. "Flash drought onset over the contiguous United States: sensitivity of inventories and trends to quantitative definitions." Hydrology and Earth System Sciences 25 (2): 565-581 [10.5194/hess-25-565-2021] [Journal Article/Letter]
2020. "North Atlantic centers of action and seasonal to subseasonal temperature variability in Europe and eastern North America." International Journal of Climatology 41 (S1): [10.1002/joc.6806] [Journal Article/Letter]