pubmed-article:18267909 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0008946 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0039476 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0018017 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0205148 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0392747 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0812409 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0918012 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C2603343 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C1571702 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C2827666 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C1710133 | lld:lifeskim |
pubmed-article:18267909 | lifeskim:mentions | umls-concept:C0036493 | lld:lifeskim |
pubmed-article:18267909 | pubmed:issue | 1498 | lld:pubmed |
pubmed-article:18267909 | pubmed:dateCreated | 2008-5-20 | lld:pubmed |
pubmed-article:18267909 | pubmed:abstractText | Future changes in meridional sea surface temperature (SST) gradients in the tropical Atlantic could influence Amazon dry-season precipitation by shifting the patterns of moisture convergence and vertical motion. Unlike for the El Niño-Southern Oscillation, there are no standard indices for quantifying this gradient. Here we describe a method for identifying the SST gradient that is most closely associated with June-August precipitation over the south Amazon. We use an ensemble of atmospheric general circulation model (AGCM) integrations forced by observed SST from 1949 to 2005. A large number of tropical Atlantic SST gradient indices are generated randomly and temporal correlations are examined between these indices and June-August precipitation averaged over the Amazon Basin south of the equator. The indices correlating most strongly with June-August southern Amazon precipitation form a cluster of near-meridional orientation centred near the equator. The location of the southern component of the gradient is particularly well defined in a region off the Brazilian tropical coast, consistent with known physical mechanisms. The chosen index appears to capture much of the Atlantic SST influence on simulated southern Amazon dry-season precipitation, and is significantly correlated with observed southern Amazon precipitation. We examine the index in 36 different coupled atmosphere-ocean model projections of climate change under a simple compound 1% increase in CO2. Within the large spread of responses, we find a relationship between the projected trend in the index and the Amazon dry-season precipitation trends. Furthermore, the magnitude of the trend relationship is consistent with the inter-annual variability relationship found in the AGCM simulations. This suggests that the index would be of use in quantifying uncertainties in climate change in the region. | lld:pubmed |
pubmed-article:18267909 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:18267909 | pubmed:commentsCorrections | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:18267909 | pubmed:language | eng | lld:pubmed |
pubmed-article:18267909 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:18267909 | pubmed:citationSubset | IM | lld:pubmed |
pubmed-article:18267909 | pubmed:status | MEDLINE | lld:pubmed |
pubmed-article:18267909 | pubmed:month | May | lld:pubmed |
pubmed-article:18267909 | pubmed:issn | 0962-8436 | lld:pubmed |
pubmed-article:18267909 | pubmed:author | pubmed-author:CollinsMatM | lld:pubmed |
pubmed-article:18267909 | pubmed:author | pubmed-author:GoodPeterP | lld:pubmed |
pubmed-article:18267909 | pubmed:author | pubmed-author:LoweJason AJA | lld:pubmed |
pubmed-article:18267909 | pubmed:author | pubmed-author:Moufouma-Okia... | lld:pubmed |
pubmed-article:18267909 | pubmed:issnType | Print | lld:pubmed |
pubmed-article:18267909 | pubmed:day | 27 | lld:pubmed |
pubmed-article:18267909 | pubmed:volume | 363 | lld:pubmed |
pubmed-article:18267909 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:18267909 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:18267909 | pubmed:pagination | 1761-6 | lld:pubmed |
pubmed-article:18267909 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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pubmed-article:18267909 | pubmed:meshHeading | pubmed-meshheading:18267909... | lld:pubmed |
pubmed-article:18267909 | pubmed:year | 2008 | lld:pubmed |
pubmed-article:18267909 | pubmed:articleTitle | An objective tropical Atlantic sea surface temperature gradient index for studies of south Amazon dry-season climate variability and change. | lld:pubmed |
pubmed-article:18267909 | pubmed:affiliation | Met Office Hadley Centre, FitzRoy Road, Exeter, Devon EX1 3PB, UK. peter.good@metoffice.gov.uk | lld:pubmed |
pubmed-article:18267909 | pubmed:publicationType | Journal Article | lld:pubmed |
pubmed-article:18267909 | pubmed:publicationType | Research Support, U.S. Gov't, Non-P.H.S. | lld:pubmed |
pubmed-article:18267909 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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