Eastern-Western Arctic Sea Ice Analysis, 1982.

• Other Authors: NAVAL POLAR OCEANOGRAPHY CENTER WASHINGTON DC
• Format: Text
• Language: English
• Published: 1983
• Subjects: Snow; Ice and Permafrost; *SEA ICE; ARCTIC REGIONS; GEOGRAPHIC DISTRIBUTION; CONCENTRATION(COMPOSITION); THICKNESS; BOUNDARIES; SOUTH(DIRECTION); SEASONAL VARIATIONS; CHARTS; Arctic; Ice; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA132410; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA132410

This publication is the ninth in a continuing yearly series of Arctic sea ice atlases prepared in the Joint Ice Center at the Naval Polar Oceanography Center, Suitland. The atlas contains weekly charts depicting Northern Hemisphere ice conditions and extents. The information presented was prepared under operational time constraints principally from satellite imagery supplemented by conventional observations. The purpose of this atlas is to provide operators and researchers with reliable weekly hemispheric ice analyses. Satellite data limitations and other difficulties involved in manually synthesizing various forms of ice data have evolved the following analysis procedures. (1) Conventional shore station, ship and aerial ice reconnaissance observations are plotted on base charts and evaluated for timeliness; (2) Satellite data is analyzed for ice information content, with the most recent and highest resolution considered first. Synthesis of conventional with satellite data yields the final analysis; (3) Where sufficient data is not available to define the sea ice limit, an estimated boundary is depicted. After one week of no data availability the ice edge position is based on analyzed theoretical ice drift data and other diagnostic aids. During subsequent weeks of no data availability the ice edges approach seasonal mean positions.