Changes in surface water supply across Africa with predicted climate change

Science
Maarten de Wit, Jacek Stankiewicz

Abstract

Across Africa, perennial drainage density as a function of mean annual rainfall defines three regimes separated by threshold values of precipitation. This nonlinear response of drainage to rainfall will most seriously affect regions in the intermediate, unstable regime. A 10% decrease in precipitation in regions on the upper regime boundary (1000 millimeters per year) would reduce drainage by 17%, whereas in regions receiving 500 millimeters per year, such a drop would cut 50% of surface drainage. By using predicted precipitation changes, we calculate that a decrease in perennial drainage will significantly affect present surface water access across 25% of Africa by the end of this century.

References

Oct 2, 2004·Science·Hans von StorchSimon F B Tett

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Citations

Jan 17, 2012·Environmental Science & Technology·Amy J Pickering, Jennifer Davis
Sep 18, 2013·Environmental Health Perspectives·Teresa K Yamana, Elfatih A B Eltahir
Apr 4, 2007·Proceedings of the National Academy of Sciences of the United States of America·Johan RockströmMalin Falkenmark
Sep 20, 2007·Proceedings of the National Academy of Sciences of the United States of America·Shilong PiaoSönke Zaehle
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Feb 8, 2008·Conservation Biology : the Journal of the Society for Conservation Biology·Nicola C OkesGraeme S Cumming
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Apr 23, 2015·Proceedings of the National Academy of Sciences of the United States of America·Robert Paul SkeltonTodd E Dawson
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May 11, 2019·Advanced Materials·Haitao WangSihui Zhan
Jul 22, 2021·Ecological Applications : a Publication of the Ecological Society of America·Georgia C TitcombHillary S Young
Dec 5, 2021·Nature Communications·Georgia TitcombHillary Young

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