Takuya NAKANOWATARI, Jun INOUE, Kazutoshi SATO, Laurent Bertino, Jiping Xie, Mio MATSUEDA,Akio YAMAGAMI, Hironori YABUKI, SUGIYAMA and Natsuhiko OTSUKA(2018). Medium-range predictability of summertime sea ice thickness distribution in the East Siberian Sea on TOPAZ4 data assimilation system, Proc., 33rd Intl. Symp. on Okhotsk Sea and Polar Oceans, pp.**-**