Skip all navigation and jump to content Jump to site navigation
NASA Logo - Goddard Space Flight Center

+ NASA Homepage

    
Goddard Space Flight Center
About MODIS News Data Tools /images2 Science Team Science Team Science Team

   + Home
ABOUT MODIS
MODIS Publications Link
MODIS Presentations Link
MODIS Biographies Link
MODIS Science Team Meetings Link
 

 

 

McGuire, M, Wood, AW, Hamlet, AF, Lettenmaier, DP (2006). Use of satellite data for streamflow and reservoir storage forecasts in the snake river basin. JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT-ASCE, 132(2), 97-110.

Abstract
We describe an approach to seasonal streamflow forecasting for the Snake River Basin in the Pacific Northwest that uses the variable infiltration capacity (VIC) macroscale hydrology model in conjunction with adjustments of the model's initial snow state using moderate resolution imaging spectroradiometer (MODIS) imagery for Winters 2000-2004. We evaluated seasonal streamflow forecasts made on March 1, April 1, and May 1 through the end of July, as well as short lead forecasts for two-week durations beginning on April 15 and May 15 retrospectively for 2000-2004 (2004 forecasts are archived forecasts made in real time). In general, reductions in mean absolute error were more prevalent and larger for the two-week forecasts than for the longer seasonal forecasts, and the forecast skill improvements resulting from updating were greatest for forecasts made earliest in the season. Inclusion of MODIS data resulted in forecast error reduction (or no change in forecasts) in 59% of the seasonal forecasts (54% of the two-week forecasts), however when only the largest adjustments were considered, the fraction of improvement was much higher. We also evaluated the effect of MODIS adjustment on reservoir storage volume forecasts using a monthly time step reservoir simulation model. For two reservoirs (Dworshak and American Falls) where the reservoir model performed well in retrospective simulations, storage forecast errors were reduced for most forecasts at Dworshak. but were mostly unchanged or degraded at American Falls. The differences are attributed to reservoir operating characteristics. which are more constrained at American Falls than at Dworshak.

DOI:
10.1061/(ASCE)0733-9496(2006)132:2(97)

ISSN:
0733-9496

FirstGov logo Privacy Policy and Important Notices NASA logo

Curator: Brandon Maccherone
NASA Official: Shannell Frazier

NASA Home Page Goddard Space Flight Center Home Page