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The Russian Arctic and Antarctic Research Institute (AARI) has conducted long-term meteorological studies over the Arctic basin and adjacent Siberian seas. Standard measurements of precipitation and snow geophysical properties were made, consistent with methods recommended by the World Meteorological Organization (WMO). An extensive set of snow and precipitation data has been collected during the last 40 years and has been assembled into a digital database. These data are now kept at the National Snow and Ice Data Center (NSIDC) and World Data Center A for Glaciology. The geophysical properties of snow and sea ice together affect the conductive, turbulent, and radiative energy exchanges between the ocean and atmosphere. The spatial and temporal variations in these exchanges have an impact on virtually all the physical processes operating across this interface. This paper describes some of the basic characteristics of these snow and precipitation data, including seasonal and interannual variability.

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