Regionally coherent Little Ice Age cooling in the Atlantic Warm Pool

Geophysical Research Letters
By: , and 

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Abstract

[1] We present 2 new decadal-resolution foraminiferal Mg/Ca-SST records covering the past 6–8 centuries from the northern Gulf of Mexico (GOM). These records provide evidence for a Little Ice Age (LIA) cooling of 2°C, consistent with a published Mg/Ca record from Pigmy Basin. Comparison of these 3 records with existing SST proxy records from the GOM-Caribbean region show that the magnitude of LIA cooling in the Atlantic Warm Pool (AWP) was significantly larger than the mean hemispheric cooling of <1°C. We propose that a reduction in the intensity and spatial extent of the AWP during the LIA, combined with associated changes in atmospheric circulation may account for the regional SST patterns observed in the GOM-Caribbean region during the LIA.

Publication type Article
Publication Subtype Journal Article
Title Regionally coherent Little Ice Age cooling in the Atlantic Warm Pool
Series title Geophysical Research Letters
DOI 10.1029/2009GL040445
Volume 36
Issue 21
Year Published 2009
Language English
Publisher American Geophysical Union
Contributing office(s) St. Petersburg Coastal and Marine Science Center
Description L21703, 5 p.
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