Accession Number : ADA109002


Title :   Sea Ice Movements from Synthetic Aperture Radar


Descriptive Note : Final rept. 1 Apr 79-30 Jun 81


Corporate Author : WASHINGTON UNIV SEATTLE POLAR SCIENCE CENTER


Personal Author(s) : Rothrock, David A ; Thorndike, Alan S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a109002.pdf


Report Date : 01 Dec 1981


Pagination or Media Count : 84


Abstract : The spatial structure of the sea ice velocity field determines ridging, open water production and ice stress. The velocity has been measured roughly every 2 km along an 865 km track from SEASAT synthetic aperture radar. The movement shows individual pieces as large as 100 km. The spatial autocorrelation function of velocity has been estimated from these data and FGGE and AIDJEX buoy data, and has a length scale of roughly 1000 km. A model of the movement of a set of pieces shows the large uncertainty in opening and ridging estimated from velocities measured at only three points. (Author)


Descriptors :   *SYNTHETIC APERTURE RADAR , *SEA ICE , STRESSES , VELOCITY , FUNCTIONS , SPATIAL DISTRIBUTION , PRODUCTION , STRUCTURES , AUTOCORRELATION , ICE , SCALE , LENGTH , FIELD CONDITIONS , OPEN WATER , BUOYS


Subject Categories : Snow, Ice and Permafrost
      Active & Passive Radar Detection & Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE