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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Spatiotemporal drought variability in northwestern Africa over the last nine centuries
Climate Dynamics, Volume 37, No. 1, Year 2011
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Description
Changes in precipitation patterns and the frequency and duration of drought are likely to be the feature of anthropogenic climate change that will have the most direct and most immediate consequences for human populations. The latest generation of state-of-the-art climate models project future widespread drying in the subtropics. Here, we reconstruct spatially-complete gridded Palmer drought severity index values back to A. D. 1179 over Morocco, Algeria, and Tunisia. The reconstructions provide long-term context for northwest African hydroclimatology, revealing large-scale regional droughts prior to the sixteenth century, as well as more heterogeneous patterns in sixteenth, eighteenth, and twentieth century. Over the most recent decades a shift toward dry conditions over the region is observed, which is consistent with general circulation model projections of greenhouse gas forced enhanced regional subtropical drought. © 2010 Springer-Verlag.
Authors & Co-Authors
Touchan, Ramzi
United States, Tucson
The University of Arizona
Anchukaitis, Kevin J.
United States, Palisades
Lamont-doherty Earth Observatory
Meko, David M.
United States, Tucson
The University of Arizona
Sabir, Mohamed
Morocco, Sale
National School of Forest Engineering
Attalah, Saïd
Algeria, Ouargla
Université Kasdi Merbah Ouargla
Aloui, Ali
Tunisia, Tunis
Institut Sylvo-pastoral de Tabarka
Statistics
Citations: 173
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.1007/s00382-010-0804-4
ISSN:
09307575
e-ISSN:
14320894
Research Areas
Environmental
Study Locations
Algeria
Morocco
Tunisia