The Sahelian Energy Balance Experiment (SEBEX): Ground based measurements and their potential for spatial extrapolation using satellite data
| Autor: | J.S. Wallace, C.J. Holwill, I.R. Wright, J.B. Stewart |
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| Rok vydání: | 1991 |
| Předmět: |
Atmospheric Science
Meteorology Atmospheric circulation Energy balance Aerospace Engineering Astronomy and Astrophysics Vegetation Sensible heat Geophysics Hydrology (agriculture) Space and Planetary Science Available energy General Earth and Planetary Sciences Environmental science Climate model Scale (map) |
| Zdroj: | Advances in Space Research. 11:131-141 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/0273-1177(91)90413-e |
| Popis: | Large scale changes in vegetation cover in the Sahelian zone of West Africa may produce changes in climate. However, before any reliable forecasts can be made, fundamental data on the physical and biological processes controlling the energy balance of Sahelian vegetation are urgently required for calibrating global circulation models. To provide some of these data the Institute of Hydrology has recently begun a collaborative project with the ICRISAT Sahelian Center called SEBEX; the Sahelian Energy Balance EXperiment. The main objective of this project is to obtain direct measurements of available energy, evaporation and sensible heat flux from contrasting Sahelian land types in order to see how they might be affected by a change in vegetation. To use these data to calibrate climate models it will be necessary to extrapolate them to much larger areas. A second objective of SEBEX is, therefore, to investigate the possibility of using satellite remote sensing to estimate energy fluxes for areas of the size required for making climate forecasts on a regional scale. |
| Databáze: | OpenAIRE |
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