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When does sea ice form and reach its greatest extent in the Sea of Okhotsk?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
Vertical physical map showing the seas of Japan and Okhotsk, highlighting underwater basins, trenches, and ridges, as well as the coastlines and boundaries of Russia, China, North Korea, South Korea, and Japan. Major cities, islands, and peninsulas such as Vladivostok, Tokyo, Hokkaido, Sakhalin, Kamchatka Peninsula, and the Kuril Islands are labeled. Water depths are indicated with color shading, and an inset locator map shows the region's position in East Asia.
Sea of Okhotsk

In the Sea of Okhotsk, ice cover begins to appear at the end of October. The ice continues to expand throughout the winter months and reaches its greatest extent in March. While the ice typically vanishes by June, ice floes can persist in certain areas, such as the Sakhalin gulfs and the region around Shantar Island, into July and occasionally August.1