Temporal Variations of the Annual-Mean Precipitation over the Sahel Region of Africa (image) University of Miami Rosenstiel School of Marine & Atmospheric Science Share Print E-Mail Caption Top map: Spatial distribution of the annual-mean precipitation averaged from 1979-2008. Bottom: Time series of the annual mean precipitation anomaly relative to the 1971-2000 climatology over the Sahel region of Africa. Credit Top:Credit: Global Precipitation Climatology Project (GPCP) data set. Bottom:Credit: Global Historical Climatology Network (GHCN) data set. Background image: Drought - George Safonov Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.