HR: 11:50h
AN: H22C-07    [Abstracts]
TI: A Virtual Surface Water Satellite Mission: Identifying Key Science Issues
AU: * Goteti, G
EM: ggoteti@uci.edu
AF: Dept of Earth System Science, University of California, Irvine, CA 92697 United States
AU: Famiglietti, J S
EM: jfamigli@uci.edu
AF: Dept of Earth System Science, University of California, Irvine, CA 92697 United States
AU: Alsdorf, D E
EM: alsdorf@geog.ucla.edu
AF: Dept of Geological Sciences, Ohio Stste University, Columbus, OH 43210 United States
AU: Bates, P
EM: Paul.Bates@bristol.ac.uk
AF: School of Geographical Sciences, University of Bristol, University Road, Bristol, BS8 1SS United Kingdom
AU: Clark, E
EM: eclark@hydro.washington.edu
AF: Dept of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195 United States
AU: Lettenmaier, D P
EM: dennisl@u.washington.edu
AF: Dept of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195 United States
AU: Moller, D
EM: dkmoller@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, CA 91109 United States
AU: Rodriguez, E
EM: er@vermeer.jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, CA 91109 United States
AU: Wilson, M D
EM: M.D.Wilson@bristol.ac.uk
AF: School of Geographical Sciences, University of Bristol, University Road, Bristol, BS8 1SS United Kingdom
AB: Here we present results from a virtual mission (VM) to explore the feasibility of remotely measuring surface water heights, slopes and inundation extent. The purpose of this presentation is to demonstrate how the VM can guide mission design in order to address key questions regarding surface water dynamics and Earth System interactions; and additionally, to assess how proposed mission specifications affect uncertainty in addressing those science issues and help identify new ones. The VM group has simulated inputs to the LISFLOOD floodplain model using the Variable Infiltration Capacity (VIC) land surface model, and has generated dynamic floodplain storage simulations for analyses. LISFLOOD output was further processed to simulate interferometric response given specified orbits. The resulting floodplain height images were explored with a view towards spatial and temporal measurement frequencies required to address a series of key issues for monitoring surface water hydrology. In particular, we examined tradeoffs between measurement frequency and accuracy for monitoring water heights, slopes, storage changes and inundation extent within selected regions of floodplain. We further investigated how the height and slope information could be used with ancillary data to predict river discharge. Results will have implications for a global-scale surface water monitoring mission, and related issues in biogeochemical and global water cycles.
DE: 1821 Floods
DE: 1836 Hydrologic budget (1655)
DE: 1860 Runoff and streamflow
DE: 1890 Wetlands
DE: 1894 Instruments and techniques
SC: Hydrology [H]
MN: 2004 AGU Fall Meeting