期刊
GEOPHYSICAL RESEARCH LETTERS
卷 37, 期 -, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2010GL045522
关键词
-
资金
- NOAA's Climate Program Office
- Joint Institute for the Study of the Atmosphere and Ocean at the University of Washington
Between May and August 2009 sea surface temperatures (SSTs) in the eastern equatorial Atlantic dropped 5 C, from 1 C above normal to 1 C below normal. The magnitude of this cooling is unprecedented since satellite SST measurements began in 1982. In this study, observations and a linear equatorial wave model are used to examine the causes of the sharp decrease in SST. It is found that the anomalous cooling along the equator can be traced to an anomalous meridional gradient of SST and associated northwesterly anomalous winds that developed in the equatorial Atlantic the preceding spring. The anomalous winds forced upwelling equatorial Rossby waves that propagated westward during boreal spring and reflected at the western boundary into upwelling Kelvin waves during late spring and summer. The upwelling Kelvin waves propagated eastward along the equator, anomalously decreasing sea level and SST during May-August. Citation: Foltz, G. R., and M. J. McPhaden (2010), Abrupt equatorial wave-induced cooling of the Atlantic cold tongue in 2009, Geophys. Res. Lett., 37, L24605, doi: 10.1029/2010GL045522.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据