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

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...

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Bibliographic Details
Main Author: Holmgren,Bjoern
Other Authors: ARCTIC INST OF NORTH AMERICA WASHINGTON D C
Format: Text
Language:English
Published: 1971
Subjects:
Meteorology
(*CLIMATE
ARCTIC REGIONS)
(*WIND
MEASUREMENT)
MICROMETEOROLOGY
SNOW
GLACIERS
ATMOSPHERIC TEMPERATURE
CANADA
DEVON ISLAND
Arctic
Canada
Devon Island
glacier*
Ice cap
Polar Ice Cap
Online Access:http://www.dtic.mil/docs/citations/AD0721486
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0721486
Description
Summary: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) Report of Devon Island Expedition 1961-1963. Pub. as Uppsala Univ. (Sweden). Meteorologiska Institutionen. Meddelande-108. See also Part C, AD-721 487.

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