Northeast US precipitation variability and North American climate teleconnections interpreted from late Holocene varved sediments.

ABSTRACT: A more thorough understanding of regional to hemispheric hydroclimate variability and associated climate patterns is needed in order to validate climate models and project future conditions. In this study, two annually laminated (varved) sediment records spanning the last millennium were analyzed from Rhode Island and New York. Lamination thickness time series from the two locations are significantly correlated to hydroclimate indicators over the period of instrument overlap, demonstrating their usefulness in reconstructing past conditions. Both records are correlated to climate teleconnection indices, most strongly the Pacific/North American (PNA) pattern, suggesting regional to hemispheric influences on hydroclimate. Such a linkage is interpreted to be due to tropospheric circulation pat

SUBMITTER: Hubeny JB 

PROVIDER: S-EPMC3207672 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature