Figure 4 - VHR data, northeast Sea of Japan, Soviet Coast, Sakhalin, and the western portion 



of the Sea of Okhotsk. Ascending node 0147Z, 13 April 1972, 5528/279, low enhance, 



expand center, 1/3 n.mi. resolution visual range data. 



NOTE: 1 . The "granular" structure and fracturing of the sea ice in the Sea of Okhotsk 



(east and north of Sakhalin). Ail of the drift ice seen is probably 50-90 cm thick 

 and the variation in shading is due to variation in Ice concentrations (from 3 

 to 10 tenths) north of the ice edge. 



2. West of Sakhalin, off the mouth of the Amur River, the landfast ice is mostly 

 white with the dark band against the coastlines representing snow water on the 

 ice and surface puddling of the ice itself. 



3. The surface water flow patterns outlined by drift ice on the sea surface northeast 

 of Hokkaido. 



4. In the Sea of Okhotsk the wind drift as a result of the Siberian High Pressure 

 System moves the ice southeastward creating the shore polynyas noted and 

 causing the ice strings along the eastern ice edge. 



