Low-Frequency Variability of the Yellow Sea Cold Water Mass Identified from the China Coastal Waters and Adjacent Seas Reanalysis
Low-Frequency Variability of the Yellow Sea Cold Water Mass Identified from the China Coastal Waters and Adjacent Seas Reanalysis
复制标题
DOI：
10.1155/2015/269859
复制
发表时间：
2015-08
影响因子：
2.9
通讯作者：
Xuewei Li;Xidong Wang;P. Chu;D. Zhao
中科院分区：
文献类型：
--
作者：
Xuewei Li;Xidong Wang;P. Chu;D. Zhao
本文利用中国近海及邻海再分析（CORA）资料，研究了黄海冷水团（YSCWM）的年际和年代际变化及其与北极涛动（AO）、厄尔尼诺/南方涛动（ENSO）和太平洋年代际涛动（PDO）等气候指数的关系。在年际尺度上，冬季PDO与YSCWM的强相关可能表明冬季PDO通过局地热通量和风应力的调制对YSCWM起主导作用。夏季局地风应力和热通量对长江流域大气环流年际变化的影响较小。在年代际尺度上，YSCWM与冬季AO和冬季PDO有关。冬季AO主要控制局地热通量，调节YSCWM的年代际变化。冬季PDO与冬季热通量和风应力密切相关，调节了YSCWM的年代际变化。夏季，在3个气候因子中，ENSO是控制YSCWM年代际变化的主导因子。
This study uses the China Coastal Waters and Adjacent Seas Reanalysis (CORA) data to investigate the interannual and decadal variability of the Yellow Sea cold water mass (YSCWM) and its relationship to climate indices including the Arctic Oscillation (AO), El Nino/Southern Oscillation (ENSO), and Pacific Decadal Oscillation (PDO). On the interannual timescale, the strong correlation between winter PDO and the YSCWM may indicate the dominant effect of winter PDO on the YSCWM through the modulation of local heat flux and wind stress. It is also found that the local wind stress and heat flux in summer have little impact on the interannual variability of the YSCWM. On the decadal time scale, the YSCWM is associated with winter AO and winter PDO. Winter AO mainly controls local heat flux, modulating the decadal variability of the YSCWM. In contrast, winter PDO is strongly connected with winter heat flux and wind stress to modulate the decadal variability of the YSCWM. In summer, for three climate factors, ENSO is the dominant factor controlling the decadal variability of the YSCWM.