SEA ICE PROFILE AND DRIFT MEASUREMENT AT THE COAST OF OKHOTSK SEA

Abstract

Drift and draft of the sea ice and currents were measured successfully by IPS and ADCP at a point of 2.4km off from the shoreline of the Okhotsk coast where the water depth is -18 m, from January to March 2001. It was observed that the largest ice draft was 3.6 m. Among ice draft measurements whose value were 0.5m or above, 99.7% of the drafts were 2.5 meters or less. The average ice drift velocity of ice was 0.2m/s, with the fastest exceeding 1.0m/s. The ice drift correlated with the wind and current, and the wind strongly affects ice movements. Using the data set of ice drift and draft, underside profiles of the sea ice ware tried to describe.