Supplementary data on sea speed

　

Figure C-9 Monthly changes in average sea speed of the 25BC in each sea region (averages for 1957-1990)

　

Figure C-10 Monthly changes in average sea speed of the 40BC in each sea region (averages for 1957-1990)

　

Figure C-11 Monthly changes in average sea speed in the regional east route in each sea region (25BC, averages for 1957-1990)

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