Processes contributing to the time-mean surface wind convergence pattern around the wintertime Kuroshio Extension and subarctic fronts as revealed in the JRA-55 family

Ryusuke Masunaga1, Hisashi Nakamura1, Bunmei Taguchi2 and Takafumi Miyasaka1, (1)Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan, (2)Research Center for Advanced Science and Technology, University of Tokyo, Bunkyo-ku, Japan