Physical Processes Related to Sea-Ice Divergence

• Main Authors: Lewis, James K, Giuffrida, Maria R
• Other Authors: SCIENCE APPLICATIONS INTERNATIONAL CORP COLLEGE STATION TX APPLIED ENVIRONMENTAL SCIENCES DIV
• Format: Text
• Language: English
• Published: 1988
• Subjects: Snow; Ice and Permafrost; *SEA ICE; ARCTIC OCEAN; FORMULATIONS; GRIDS; HEAT FLUX; KINEMATICS; MATHEMATICAL MODELS; MATHEMATICAL PREDICTION; POLAR REGIONS; PREDICTIONS; SCALE; SCALING FACTOR; SEASONAL VARIATIONS; SIZES(DIMENSIONS); SPATIAL DISTRIBUTION; THERMODYNAMICS; TIME; VELOCITY; PIPS(POLAR ICE PREDICTION SYSTEM); ICE MECHANICS; PE63704N; WUDN257050; Arctic; Arctic Ocean; Arctic Basin; Ice; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA201122; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA201122

This report documents the results of a study of a number of sea ice processes in the Arctic Basin. Seasonal sea ice kinematics were closely scrutinized, and their space and time scales calculated. Factors concerning sea ice thermodynamics were also considered. Direct comparisons were made between observed ice velocities and corresponding ice velocities from the Polar Ice Prediction System (PIPS). One of the primary objectives of this work was to provide a wide range of information with which one could validate the mechanics and predictions of the PIPS. Factors that were studied include the grid size and time step of the PIPS, the scale of important forcing variables, the formulation of heat fluxes within the model ice field, and steps to be considered in the attempt to produce the most realistic predictions possible. Keywords: Mathematical prediction/models.