March through August Ice Edge Positions in the Nordic Seas, 1750-2002, Version 1

This product contains ice edge coordinates for the Nordic Seas from 1750 through 2002 for months March through August. Ice edge in this product is defined as the outer boundary of ice having at least 30 percent ice concentration. Data are derived from publicly available sea ice products and use observational data from ship logbooks, diaries, and other sources in addition to more recent satellite data products from the Scanning Multichannel Microwave Radiometer (SMMR) and the Special Sensor Microwave Imager (SSM/I).