Sea ice and hydrographic observations onboard icebreaker Shirase and in Lutzow-Holm Bay on JARE60

Measurements of sea ice thickness, sea ice concentration, water temperature/salinity profile, and water current profile. Monitoring of vessel movement during ice navigation.海冰厚度（sea ice thickness）、海冰密集度（sea ice concentration）、水温/盐度剖面（water temperature/salinity profile）及海流剖面（water current profile）的实测数据。 冰区航行期间的船舶运动监测数据。