Does Pacific variability influence the Northwest Atlantic shelf temperature? Chen, Ke Kwon, Young-Oh 2018-08-29T19:00:09Z 2018-12-28T10:42:44Z 2018-06-28
dc.description Author Posting. © American Geophysical Union, 2018. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 123 (2018): 4110–4131, doi:10.1029/2017JC013414. en_US
dc.description.abstract The relationship between North Pacific variability and sea surface temperature (SST) of the Northwest Atlantic continental shelf is examined over interannual time scale in 1982–2014. Statistically significant negative correlations exist between Pacific Decadal Oscillation (PDO) index and SST in the Gulf of Maine (GoM) in spring and summer. Cross‐correlation analysis further suggests significant negative lead‐lag correlations, with the spring PDO leading the GoM SST by 0–3 months while the summer PDO lags by 1–3 months. These correlations are dominated by the interannual component of the PDO. Statistical relationships are placed in context by further investigating the physical processes controlling the upper ocean mixed layer temperature budget in the GoM. The results reveal contrasting roles between the atmosphere and the ocean in spring and summer, respectively. Local atmospheric forcings, in particular the radiative air‐sea fluxes, are the dominant driver for the interannual variability of springtime SST over the Northwest Atlantic shelf. In contrast, oceanic terms are important in controlling the interannual variability of summertime SST. As a result, reconstructed SST using atmospheric forcings successfully reproduces the statistical relationship with PDO in spring, but not in summer. Furthermore, it is shown that the SST anomalies in the central and eastern North Pacific play a key role in these relationships. en_US
dc.description.embargo 2018-12-28 en_US
dc.description.sponsorship National Science Foundation Ocean Science Division Grant Numbers: OCE‐1435602 , OCE‐1558960 , OCE‐1634094; National Oceanic and Atmospheric Administration Climate Program Office MAPP program Grant Number: NA170AR4310111 en_US
dc.identifier.citation Journal of Geophysical Research: Oceans 123 (2018): 4110–4131 en_US
dc.identifier.doi 10.1029/2017JC013414
dc.language.iso en_US en_US
dc.publisher John Wiley & Sons en_US
dc.subject Continental shelf temperature variability en_US
dc.subject Atmosphere‐ocean interaction en_US
dc.subject Mixed layer temperature en_US
dc.subject Coastal to large‐scale connections en_US
dc.subject Pacific Decadal Oscillation en_US
dc.title Does Pacific variability influence the Northwest Atlantic shelf temperature? en_US
dc.type Article en_US
dspace.entity.type Publication
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