Timothy Lahmers
(RSCH AST, EARTH SCIENCES REMOTE SENS)
| Email: | timothy.lahmers@nasa.gov |
| Phone: | 301.614.5681 |
| Org Code: | |
| Address: |
NASA/GSFC Mail Code 617 Greenbelt, MD 20771 |
| Employer: |
Brief Bio
Timothy Lahmers is a Research Physical Scientist (NASA-GSFC) and is a GSFC Center Response Coordinator (CRC) for the NASA Disasters Response Coordination System (DRCS). Disasters program responsibilities include coordinating with GSFC subject matter experts and making GSFC products available to emergency managers during DRCS activations. Present research includes evaluating the benefits of surface data-assimilation and physical processes for improving the representativeness of land surface models and hydrologic models. Current and past projects have involved leading efforts with teams across institutions to add physical processes such as streamflow and groundwater, to the NASA Land Information System (LIS).
Positions/Employment
Research Physical Scientist
NASA Goddard Space Flight Center - Greenbelt, MD
July 2024 - Present
Assistant Research Scientist
Earth System Science Interdisciplinary Center (ESSIC) - Greenbelt, MD
September 2021 - July 2024
NASA Postdoctoral Program (NPP) Postdoctoral Fellow
NASA Postdoctoral Program - Greenbelt, MD
September 2019 - September 2021
Postdoctoral Researcher
Department of Hydrology and Atmospheric Sciences, University of Arizona - Tucson, AZ
June 2019 - September 2019
Professional Societies
• American Meteorological Society
2009 - Present
American Geophysical Union
2015 - Present
Publications
Refereed
2026. "Evapotranspiration declines prolonged by deforestation and fire in South American biomes.", Nature Geoscience, [10.1038/s41561-026-01981-8] [Journal Article/Letter]
2025. "Addressing Challenges and Exploring Solutions to Enhance Earth Observation Applications for Emergency Management.", Journal of Earth Observations and Geospatial Applications, 1 (1): 129-143 [10.65372/x7e2t216] [Journal Article/Letter]
2025. "An Observation‐Driven Framework for Modeling Post‐Fire Hydrologic Response: Evaluation for Two Central California Case Studies.", Water Resources Research, 61 (2): [10.1029/2023wr036582] [Journal Article/Letter]
2024. "Continental freshwater discharge influences sea surface salinity variability near world’s megadeltas.", Proceedings of the National Academy of Sciences, 121 (49): [10.1073/pnas.2412551121] [Journal Article/Letter]
2023. "Interconnected hydrologic extreme drivers and impacts depicted by remote sensing data assimilation.", Scientific Reports, 13 (1): 3411 [10.1038/s41598-023-30484-4] [Journal Article/Letter]
2022. "Flash Drought Onset and Development Mechanisms Captured with Soil Moisture and Vegetation Data Assimilation.", Water Resources Research, 58 (12): e2022WR032894 [10.1029/2022wr032894] [Journal Article/Letter]
2022. "Assimilation of NASA's Airborne Snow Observatory Snow Measurements for Improved Hydrological Modeling: A Case Study Enabled by the Coupled LIS/WRF‐Hydro System.", Water Resources Research, 58 (3): e2021WR029867 [10.1029/2021wr029867] [Journal Article/Letter]
2021. "Evaluation of NOAA National Water Model Parameter Calibration in Semi-Arid Environments Prone to Channel Infiltration.", Journal of Hydrometeorology, 22 (11): 2939–2969 [10.1175/jhm-d-20-0198.1] [Journal Article/Letter]
2020. "Effects of Lateral Flow on the Convective Environment in a Coupled Hydrometeorological Modeling System in a Semiarid Environment.", Journal of Hydrometeorology, 21 (4): 615-642 [10.1175/jhm-d-19-0100.1] [Journal Article/Letter]
2019. "Enhancing the Structure of the WRF-Hydro Hydrologic Model for Semiarid Environments.", Journal of Hydrometeorology, 20 (4): 691-714 [10.1175/jhm-d-18-0064.1] [Journal Article/Letter]
2017. "The More Extreme Nature of North American Monsoon Precipitation in the Southwestern United States as Revealed by a Historical Climatology of Simulated Severe Weather Events.", Journal of Applied Meteorology and Climatology, 56 (9): 2509-2529 [10.1175/jamc-d-16-0358.1] [Journal Article/Letter]
2016. "Long-Term Changes in the Climatology of Transient Inverted Troughs over the North American Monsoon Region and Their Effects on Precipitation.", Journal of Climate, 29 (17): 6037-6064 [10.1175/jcli-d-15-0726.1] [Journal Article/Letter]
2015. "Catchment coevolution: A useful framework for improving predictions of hydrological change?.", Water Resources Research, 51 (7): 4903-4922 [10.1002/2015wr017032] [Journal Article/Letter]
2014. "An Examination of Meteorological and Soil Moisture Conditions in the Babocomari River Basin before the Flood Event of 2008.", Journal of Hydrometeorology, 15 (1): 243-260 [10.1175/jhm-d-12-0142.1] [Journal Article/Letter]