Hydrologic Atmospheric Pilot Experiment in the Sahel

OBS: Appellation et abréviation confirmées par l'organisme.

OBS: HAPEX-Sahel (Hydrological and Atmospheric Pilot Experiment in the Sahel) is an international land-surface-atmosphere observation program that was undertaken in western Niger, in the west African Sahel region. The overall aims were to improve our understanding of the role of the Sahel on the general circulation, in particular the effects of the large interannual fluctuations of land surface conditions in this region and, in turn, to develop ideas about how the general circulation is related to the persistent droughts that have affected the Sahel during the last 25 years.