Manifestation of the Pacific Decadal Oscillation in the Kuroshio
MetadataShow full item record
Pacific Decadal Oscillation (PDO) index is strongly correlated with vertically integrated transport carried by the Kuroshio through the East China Sea (ECS). Transport was determined from satellite altimetry calibrated with in situ data and its correlation with PDO index (0.76) is highest at zero lag. Total PDO-correlated transport variation carried by the ECS-Kuroshio and Ryukyu Current is about 4 Sv. In addition, PDO index is strongly negatively correlated, at zero lag, with NCEP wind-stress-curl over the central North Pacific at ECS latitudes. Sverdrup transport, calculated from wind-stress-curl anomalies, is consistent with the observed transport variations. Finally, PDO index and ECS-Kuroshio transport are each negatively correlated with Kuroshio Position Index in the Tokara Strait; this can be explained by a model in which Kuroshio path is steered by topography when transport is low and is inertially controlled when transport is high.
Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 36 (2009): L16602, doi:10.1029/2009GL039216.
Suggested CitationArticle: Andres, Magdalena, Park, Jae-Hun, Wimbush, Mark, Zhu, Xiao-Hua, Nakamura, Hirohiko, Kim, Kuh, Chang, Kyung-Il, "Manifestation of the Pacific Decadal Oscillation in the Kuroshio", Geophysical Research Letters 36 (2009): L16602, DOI:10.1029/2009GL039216, https://hdl.handle.net/1912/3383
Showing items related by title, author, creator and subject.
Coupled atmosphere–mixed layer ocean response to ocean heat flux convergence along the Kuroshio Current Extension Kwon, Young-Oh; Deser, Clara; Cassou, Christophe (2010-01-28)The winter response of the coupled atmosphere-ocean mixed layer system to anomalous geostrophic ocean heat flux convergence in the Kuroshio Extension is investigated by means of experiments with an atmospheric general ...
Andres, Magdalena; Kwon, Young-Oh; Yang, Jiayan (American Geophysical Union, 2011-04-15)Observations show that the Kuroshio in the East China Sea (ECS-Kuroshio) responds to the large-scale wind stress curl field at two time scales. It is argued that these two responses are related to barotropic and baroclinic ...
The Kuroshio Extension : a leading mechanism for the seasonal sea-level variability along the west coast of Japan Ma, Chao; Yang, Jiayan; Wu, Dexing; Lin, Xiaopei (2009-10-08)Sea level changes coherently along the two coasts of Japan on the seasonal time scale. AVISO satellite altimetry data and OFES (OGCM for the Earth Simulator) results indicate that the variation propagates clockwise from ...