TY  - JOUR
A1  - Bergner, Andreas G. N.
A1  - Trauth, Martin H.
A1  - Bookhagen, Bodo
T1  - Magnitude of precipitation : evaporation changes in the Naivasha Basin (Kenya) during the last 150 kyrs
N2  - We modeled the two most extreme highstands of Lake Naivasha during the last 175 k.y. to estimate potential precipitation/ evaporation changes in this basin. In a first step, the bathymetry of the paleolakes at f135 and 9 k.y. BP was reconstructed from sediment cores and surface outcrops. Second, we modeled the paleohydrologic budget during the highstands using a simplified coupled energy mass-balance model. Our results show that the hydrologic and hence the climate conditions at f135 and 9 k.y. BP were similar, but significantly different from today. The main difference is a f15% higher value in precipitation compared to the present. An adaptation and migration of vegetation in the cause of climate changes would result in a f30% increase in precipitation. The most likely cause for such a wetter climate at f135 and 9 k.y. BP is a more intense intertropical convergence and increased precipitation in East Africa.
Y1  - 2003
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/15524
ER  -