NOWCAST

NOWCAST IIHMHlNHHHH M NEWS AND NOTES WES T AFRICAN DROUGHT dr y periods the lake shrinks and oscillation has been suspected in RECOR D EMERGES FROM LAKE exposes more soil, which washes affectin g drought s by computer BOTTO M int o the lake, increasing the soil simulations and datasets that in- Scientists from the University of element concentrations. clude tree-ring variations, the con- nection hadn't been confirmed over Arizona recently looked to th e bot- "Lake Bosumtwi is really unique tom of Lake Bosumtwi in Ghana, in that its one of the few locations long time periods, until now. West Africa, for details to explain i n tropical West Africa where Th e sediment record was also th e country's severe droughts. varves , annual sediment layers, marke d by less frequent , bu t more The research indicated that severe are preserved," notes Shanahan. severe , centuries-long drought drought s lasting several decades, "This allows us to look at changes events . The scientists note that even centuries, have happened in climate at very high resolution." du e to the size and duration of frequently in West Africa over the Th e team discovered that the these droughts http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
D.O.I.
10.1175/1520-0477-90.7.911
Publisher site
See Article on Publisher Site

Abstract

IIHMHlNHHHH M NEWS AND NOTES WES T AFRICAN DROUGHT dr y periods the lake shrinks and oscillation has been suspected in RECOR D EMERGES FROM LAKE exposes more soil, which washes affectin g drought s by computer BOTTO M int o the lake, increasing the soil simulations and datasets that in- Scientists from the University of element concentrations. clude tree-ring variations, the con- nection hadn't been confirmed over Arizona recently looked to th e bot- "Lake Bosumtwi is really unique tom of Lake Bosumtwi in Ghana, in that its one of the few locations long time periods, until now. West Africa, for details to explain i n tropical West Africa where Th e sediment record was also th e country's severe droughts. varves , annual sediment layers, marke d by less frequent , bu t more The research indicated that severe are preserved," notes Shanahan. severe , centuries-long drought drought s lasting several decades, "This allows us to look at changes events . The scientists note that even centuries, have happened in climate at very high resolution." du e to the size and duration of frequently in West Africa over the Th e team discovered that the these droughts

Journal

Bulletin of the American Meteorological SocietyAmerican Meteorological Society

Published: Jul 1, 2009

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