TY - JOUR
T1 - Decadal variations in mixed layer salinity in the Kuroshio Extension recirculation gyre region
T2 - influence of precipitation during the warm season
AU - Kitamura, Tomoyuki
AU - Nakano, Toshiya
AU - Sugimoto, Shusaku
N1 - Funding Information:
We appreciate comments from participants at the Research Meeting on Air–Sea Interaction in 2013, which was part of the Collaborative Research Program of HyARC, Nagoya University. We thank two anonymous reviewers for their valuable suggestions. This study was supported in part by funds from the Japan Society for Promotion of Science [Grant-in-Aid for Young Scientists (B) 15K17756] and from the Ministry of Education, Culture, Sports, Science and Technology [Grant-in-Aid for Scientific Research on Innovative Areas 25106702, “A ‘hot spot’ in the climate system: Extratropical air–sea interaction under the East Asian monsoon system”].
Publisher Copyright:
© 2015, The Oceanographic Society of Japan and Springer Japan.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - The salinity of the mixed layer in the Kuroshio Extension recirculation gyre (KERG) region (28°–35°N, 141°–160°E) was examined over a period of 20 years (1993–2012), and was found to show low-frequency variations on a decadal (~10 years) timescale: salinity decreased during the periods 1995–2001 and 2006–2009, but increased over the periods 2002–2005 and 2010–2012. Salinity anomalies at the sea surface during the warm season (June–October) influenced salinity in the following winter. These warm-season anomalies were caused by precipitation changes related to the number of low-pressure systems passing over the KERG associated with a westward elongation/eastward shrinkage of the summertime North Pacific subtropical high, which is driven by the Pacific–Japan (PJ) teleconnection pattern.
AB - The salinity of the mixed layer in the Kuroshio Extension recirculation gyre (KERG) region (28°–35°N, 141°–160°E) was examined over a period of 20 years (1993–2012), and was found to show low-frequency variations on a decadal (~10 years) timescale: salinity decreased during the periods 1995–2001 and 2006–2009, but increased over the periods 2002–2005 and 2010–2012. Salinity anomalies at the sea surface during the warm season (June–October) influenced salinity in the following winter. These warm-season anomalies were caused by precipitation changes related to the number of low-pressure systems passing over the KERG associated with a westward elongation/eastward shrinkage of the summertime North Pacific subtropical high, which is driven by the Pacific–Japan (PJ) teleconnection pattern.
KW - Kuroshio Extension recirculation gyre region
KW - Mixed layer salinity
KW - Pacific–Japan (PJ) teleconnection pattern
KW - Precipitation
KW - Storm track
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U2 - 10.1007/s10872-015-0317-1
DO - 10.1007/s10872-015-0317-1
M3 - Article
AN - SCOPUS:84959453131
SN - 0916-8370
VL - 72
SP - 167
EP - 175
JO - Journal of Oceanography
JF - Journal of Oceanography
IS - 2
ER -