Sea surface temperature variability in the tropical southeast Atlantic Ocean and West African rainfall
Sea surface temperature variability in the tropical southeast Atlantic Ocean and West African rainfall
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DOI：
10.1029/2006gl027145
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发表时间：
2006-11
影响因子：
5.2
通讯作者：
C. Reason;M. Rouault
中科院分区：
文献类型：
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作者：
C. Reason;M. Rouault
有证据表明，在安哥拉外的热带东南大西洋海表温度（SST）的变化和西部非洲沿海北部夏季降雨之间的联系。安哥拉-本格拉锋面区4 - 5月海温、5 - 6月潜热通量和5°W-5°E、5°N-10°N区域7 - 8月降水量之间存在最强的相关性。该地区异常潮湿的夏季还表现为较弱的非洲东风急流，较强的热带东风急流，在许多情况下，萨赫勒南部北部的降雨量减少。
Evidence is presented of a connection between sea surface temperature (SST) variability in the tropical southeast Atlantic Ocean off Angola and boreal summer rainfall over coastal West Africa. The strongest relationships exist between April–May SST in the Angola‐Benguela Frontal Zone area, May–June latent heat fluxes in this area, and July–August rainfall over the region 5°W–5°E, 5°N–10°N. Anomalously wet summers in this region are also characterised by a weaker African Easterly Jet, a stronger Tropical Easterly Jet and, in many cases, reduced rainfall further north over the Southern Sahel.