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Effects of spatial variability and scale on areal -average evapotranspiration
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wood, Eric F. Famiglietti, J. S. |
| Copyright Year | 1993 |
| Description | This paper explores the effect of spatial variability and scale on areally-averaged evapotranspiration. A spatially-distributed water and energy balance model is employed to determine the effect of explicit patterns of model parameters and atmospheric forcing on modeled areally-averaged evapotranspiration over a range of increasing spatial scales. The analysis is performed from the local scale to the catchment scale. The study area is King's Creek catchment, an 11.7 sq km watershed located on the native tallgrass prairie of Kansas. The dominant controls on the scaling behavior of catchment-average evapotranspiration are investigated by simulation, as is the existence of a threshold scale for evapotranspiration modeling, with implications for explicit versus statistical representation of important process controls. It appears that some of our findings are fairly general, and will therefore provide a framework for understanding the scaling behavior of areally-averaged evapotranspiration at the catchment and larger scales. |
| File Size | 1425951 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940011560 |
| Archival Resource Key | ark:/13960/t3518xd3j |
| Language | English |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Atmospheric Circulation Grasslands Energy Budgets Hydrological Cycle Spatial Distribution Atmospheric Models Evapotranspiration Watersheds Air Land Interactions Water Balance Hydrology Models Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
