Satellite remote sensing land-atmosphere water and energy exchange
NASA Terrestrial Hydrology program
John Kimball and Kyle McDonald (CalTech)
The lack of available water constrains hydrologic and ecological processes for two-thirds of the Earth’s land surface. We are working with colleagues at the NASA Jet Propulsion Laboratory to develop new satellite microwave remote sensing algorithms for detecting and monitoring land-atmosphere water and energy exchange over the continental USA. These data will provide continuous weekly-annual observations of surface evaporation and vegetation conditions from 1988 onward that can be used for a variety of applications including monitoring agricultural, rangeland and forest health, improving regional weather forecasts and water resource monitoring.
Entekhabi, D., E. Njoku, P. Houser, M. Spencer, T. Doiron, J. Smith, R. Girard, S. Belair, W. Crow, T. Jackson, Y. Kerr, J. Kimball, R. Koster, K. McDonald, P. O’Neill, T. Pultz, S. Running, J.C. Shi, E. Wood, and J. Van Zyl, 2004. The Hydrosphere State (HYDROS) mission concept: An Earth System Pathfinder for global mapping of soil moisture and land freeze/thaw. Transactions in Geoscience and Remote Sensing 42, 10, 2184-2195.
Frolking S., M. Fahnestock, T. Milliman, K. McDonald, and J.S. Kimball, 2005. Interannual variability in North American grassland biomass/productivity detected by SeaWinds scatterometer backscatter. Geophysical Research Letters, 32(21), L21409, 10.1029/2005GL024230.
Running, S.W., and J.S. Kimball, 2005. Satellite-based analysis of ecological controls for land-surface evaporation resistance. Encyclopedia of Hydrological Sciences. Vol. 5., M.G. Anderson and J.J. McDonnell (Eds.), John Wiley & Sons Ltd.