Map** and monitoring soil spatial variability is particularly problematic for temporally and
spatially dynamic properties such as soil salinity. The tools necessary to address this classic …

The water table in southwestern Niger has been rising continuously for the past decades (4
m rise from 1963 to 2007), despite a∼ 23% deficit in monsoonal rainfall from 1970 to 1998 …

Past land use changes have greatly impacted global water resources, with often opposing
effects on water quantity and quality. Increases in rain‐fed cropland (460%) and pastureland …

Abundant information is available on West African drought and its hydrological and
environmental impacts. Land-use and climatic changes have greatly modified the conditions …

In the West African semiarid belt of the Sahel, for the second half of the XXth century, lasting
droughts (1970s–1980s) and one of the World's highest population growths have resulted in …

Recent work indicates that most modern continental sedimentary basins are filled primarily
by distributive fluvial systems (DFS). In this article we use depositional environment …

Unlike recharge in shallow rooted ecosystems, estimating the groundwater recharge
beneath deep rooted plants that absorb water from deep soil remains difficult. The purpose …

In arid central Australia, the∼ 1.14 Mkm2 endorheic Lake Eyre Basin (LEB) experiences
sporadic floods, and contains saline shallow groundwater. In this basin, where on-ground …

Quantifying groundwater storage in weathered/fractured basement rock aquifers can be
challenging owing to both their high degree of heterogeneity and their overall low storage …

Core Ideas AMMA‐CATCH is a long‐term critical zone observatory in West Africa. Four sites
sample the sharp ecoclimatic gradient characteristic of this region. Combined …