Table 4. Correlation values between the drift data and JMA-MSM wind product.

seabird drift t10 (N = 1484)	0.065
seabird drift t11 (N = 4382)	0.136
buoy drift t10 (N = 156)	0.047
buoy drift t11 (N = 3256)	0.066
ship drift t14 (N = 468)	0.086
ship drift along navigation direction t14 (N = 384)	0.091
ship drift along normal direction to navigation direction t14 (N = 234)	0.115
ship drift, 2013.12.-2014.10 (N = 4514)	0.048
ship drift along navigation direction, 2013.12-2014.10 (N = 2257)	−0.010
ship drift along normal direction to navigation direction, 2013.12-2014.10 (N = 2257)	0.125

Bold font denotes statistically significant correlation with a two-tailed P value < 0.05. ‘N’ indicates a number of each data.