Changes in Mixed Layer Depth and Spring Bloom in the Kuroshio Extension under Global Warming  

作　　者：Ruosi ZHANG Shang-Ping XIE Lixiao XU Qinyu LIU 

机构地区：[1]Physical Oceanography Laboratory,Qingdao Collaborative Innovation Center of Marine Science and Technology,Key Laboratory of Ocean-Atmosphere Interaction and Climate in Universities of Shandong, Ocean University of China [2]Scripps Institution of Oceanography, University of California San Diego

出　　处：《Advances in Atmospheric Sciences》2016年第4期452-461,共10页大气科学进展（英文版）

基　　金：supported by the National Basic Research Program of China (Grant No. 2012CB955602);the National Natural Science Foundation of China (Grant Nos. 41476002, 41490643, 41176006 and 41221063);the Fundamental Research Funds for the Central Universities (Grant No. 201503029)

摘　　要：The mixed layer is deep in January-April in the Kuroshio Extension region. This paper investigates the response in this region of mixed layer depth （MLD） and the spring bloom initiation to global warming using the output of 15 models from CMIP5. The models indicate that in the late 21st century the mixed layer will shoal and the MLD reduction will be most pronounced in spring at about 33~N on the southern edge of the present deep-MLD region. The advection of temperature change in the upper 100 m by the mean eastward flow explains the spatial pattern of MLD shoaling in the models. Associated with the shoaling mixed layer, the onset of spring bloom inception is projected to advance due to the strengthened stratification in the warming climate.The mixed layer is deep in January-April in the Kuroshio Extension region. This paper investigates the response in this region of mixed layer depth （MLD） and the spring bloom initiation to global warming using the output of 15 models from CMIP5. The models indicate that in the late 21st century the mixed layer will shoal and the MLD reduction will be most pronounced in spring at about 33~N on the southern edge of the present deep-MLD region. The advection of temperature change in the upper 100 m by the mean eastward flow explains the spatial pattern of MLD shoaling in the models. Associated with the shoaling mixed layer, the onset of spring bloom inception is projected to advance due to the strengthened stratification in the warming climate.

关 键 词：mixed layer depth global warming temperature advection spring bloom 

分 类 号：P732.6[天文地球—海洋科学]