Appendix A ： Assumed ice conditions for the segments outside the NSR

　

Assumption of the environmental data from Yokohama to Bering Strait

　

(1)　The segments between Y-03 and Y-05 are assumed as ice free area throughout the year.

(2)　In the segments from Y-01 to Y-03 (shadowed in Table A. 1), the environmental data are assumed as shown in Table A. 2, Each value is extrapolated using the segment data prior to Y-01.

　

Table A.1 Voyage route

Table A.2 The determination of environmental data

　

Assumption of the environmental data in Barents Sea (N-route)

(1)　The segments between B1-01 and B5-03 are assumed as ice free area throughout the year.

(2)　In the segments from B5-03 to B1-02, the environmental data are assumed as shown in Table A.4. bythe same technique using in Table A.2

　

Table A.3 Voyage route

Table A.4 The determination of environmental data

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