Accession Number : AD0690628

Title :   ARCTIC ICE DEFORMATION JOINT EXPERIMENT.

Descriptive Note : Final rept.,

Corporate Author : WASHINGTON UNIV SEATTLE

Personal Author(s) : Untersteiner,Norbert ; Hunkins,Kenneth L.

Report Date : JUL 1969

Pagination or Media Count : 48

Abstract : An understanding of the large-scale response of sea ice to its environment is needed for solving many important theoretical and practical problems, ranging from the interaction between ice cover and global circulation to navigation in ice-covered seas. Observations from single stations are intrinsically inadequate for this purpose. It is therefore proposed to establish an array of drifting stations in the Arctic Ocean. The proposed array consists of a Central Station, surrounded by six additional stations arranged in an Inner Triangle (20 km) and an Outer Triangle (100 km). Only the Logistic (Base) and Central Stations, and the Outer Triangle will be manned. Position, atmospheric pressure, and wind speed will be determined regularly at all stations. In addition, observations at the manned stations will include meteorological conditions, wind stress, water stress, and ice conditions. To determine the areas of open water, pressure ridges, and melt ponds, surface observations will have to be supplemented by regular airborne surveys of the test area by means of photography, side-looking radar, and infrared imagery. Underice topography may be obtained by occasional submarine transits. (Author)

Descriptors :   (*SEA ICE, ARCTIC OCEAN), (*ICE ISLANDS, INSTRUMENTATION), DEFORMATION, HEAT TRANSFER, CRACKS, STRESSES, PREDICTIONS, EXPERIMENTAL DESIGN, METEOROLOGICAL PHENOMENA, DRIFT

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE