|Book Series (74)||
|Biochemistry, molecular biology, gene technology||104|
|Domestic and nutritional science||39|
|Environmental research, ecology and landscape conservation||124|
|ISBN-13 (Hard Copy)||9783865372253|
|Book Series||ZEF Bonn|
|Place of Dissertation||Bonn|
This study concerns evapotranspiration, which accounts for 90% of the water balance in West Africa. At field level, crop and bare-soil albedo measurements were used to build simple models based on phenology, zenith angle and soil surface conditions. Interactions between tree water flux and environmental variables were examined. The complementarity Advection-Aridity (AA) relationship model adequately simulates the spatio-temporal distribution of regional ET rates. The monsoon clouds, harmattan and seasonal changes in surface albedo influence evapotranspiration processes in the Volta Basin. The good performance of the improved AA model indicates its utility for providing independent estimates of ET. These results are valuable input to eco?hydrology and climate models.