Chinese Antarctic Center of Surveying and Mapping;
Wuhan University;
Wuhan 430079;
China;
MNR Key Laboratory for Polar Science;
Polar Research Institute of China;
Shanghai 200136;
China;
National Oceanic and Atmospheric Administration Great Lakes Environmental Research Laboratory;
Ann Arbor 48108-9719;
USA;
sea; ice; Arctic; Northeast; Passage; Transpolar; Drift; Stream; atmospheric; circulation; indices;