Louis Gaudaré

Université de Rennes 1 | UR1 · UMR CNRS 6118 - Géosciences Rennes

The flood-controlled Okavango Delta in Botswana is an endoreic alluvial fan system developing within the arid to semi-arid Kalahari Desert. The Delta sustains a unique association of ecosystems, from rivers to floodplains, riverine forests to savanna forests. This complex environment is nearly pristine from anthropic activity but its preservation,...

The Southwestern Branch of the East African Rift System propagates through the Central and Southern African plateaus and ends in the Okavango Makgadikgadi Zambezi Basin. This basin hosts the Okavango Graben and the Eiseb Graben, considered as the terminus of the Southwestern Branch of the rift. To the southeast, the Makgadikgadi Basin is affected b...

We present an analysis of ground deformation induced by large-scale seasonal rainfall in Southern Africa, based on GPS and GRACE time series and on simulations of elastic flexural response to hydrological loading. This large-scale study including South Zambia, South Angola, North Namibia and North Botswana displays a latitudinal precipitation gradi...

Understanding the impact of aeolian processes on the regional-scale dynamics of fluvial systems in semi-arid regions is a major issue in the framework of climate change. Although the interactions between aeolian and fluvial processes have been studied on a meter to kilometer scale, few studies have upscaled to the regional scale. Using satellite im...