Accession Number : AD0721486

Title :   Climate and Energy Exchange on a Sub-Polar Ice Cap in Summer. Part B. Wind- and Temperature-Field in the Low Layer on the Top Plateau of the Ice Cap,

Corporate Author : ARCTIC INST OF NORTH AMERICA WASHINGTON D C

Personal Author(s) : Holmgren,Bjoern

Report Date : 1971

Pagination or Media Count : 47

Abstract : Observations of the vertical variation of wind speed in near-neutral stratifications show an increase of the roughness parameter z sub 0 from about 0.00005 to 0.001 m when the wind speed at the 5 m level decreases from 6 - 7 m/sec to 2 - 3 m/sec. The increase of z sub 0 is suggested to be related to the flow conditions at the rear of the snow dunes. Snow dunes were characteristic features of the surface relief in the observation area. Possible causes of the observed profile features, especially the influence of the local conditions, are discussed. (Author)

Descriptors :   (*CLIMATE, ARCTIC REGIONS), (*WIND, MEASUREMENT), MICROMETEOROLOGY, SNOW, GLACIERS, ATMOSPHERIC TEMPERATURE, CANADA

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE