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|a Drought under global warming |h [electronic resource] |b a review. |
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|a [S.l.] : |b John Wiley & Sons, Ltd., |c 2010. |
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|a Wire's Climate Change |b Advanced Review. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a This article reviews recent literature on drought of the last millennium, followed
by an update on global aridity changes from 1950 to 2008. Projected future aridity
is presented based on recent studies and our analysis of model simulations.
Dry periods lasting for years to decades have occurred many times during
the last millennium over, for example, North America, West Africa, and East
Asia. These droughts were likely triggered by anomalous tropical sea surface
temperatures (SSTs), with La Nin˜ a-like SST anomalies leading to drought in
North America, and El-Nin˜ o-like SSTs causing drought in East China. Over Africa,
the southward shift of the warmest SSTs in the Atlantic and warming in the
Indian Ocean are responsible for the recent Sahel droughts. Local feedbacks may
enhance and prolong drought. Global aridity has increased substantially since the
1970s due to recent drying over Africa, southern Europe, East and South Asia,
and eastern Australia. Although El Nin˜ o-Southern Oscillation (ENSO), tropical
Atlantic SSTs, and Asian monsoons have played a large role in the recent drying,
recent warming has increased atmospheric moisture demand and likely altered
atmospheric circulation patterns, both contributing to the drying. Climate models
project increased aridity in the 21st century over most of Africa, southern Europe
and the Middle East, most of the Americas, Australia, and Southeast Asia. Regions
like the United States have avoided prolonged droughts during the last 50 years
due to natural climate variations, but might see persistent droughts in the next
20–50 years. Future efforts to predict drought will depend on models’ ability to
predict tropical SSTs. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15061002/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/10/02/00001/FI15061002_thm.jpg |
