Cooperative Institute for Research in Environmental Sciences

Science Rendezvous > 2009 Posters
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A Southern Hemisphere Footprint in the American Midwest

Cécile Penland and Ludmila Matrosova

A non-normal filter is used to isolate the El Niño signal in tropical south Atlantic sea surface temperatures (SSTs). In boreal fall, the resulting index is significantly anti-correlated with precipitation in the American Midwest two to three seasons later. The phenomenological reasons for the relationship are explored in this poster.