PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II.
On perennial snowfields, the problem of windblown snow is particularly acute because there is no depletion of the yearly snow accumulation. In an effort to alleviate drift problems, preliminary scale-model drift studies were conducted in a wind duct with a 2-foot-square cross section, using borax as...
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ftdtic:AD0680427 2023-05-15T16:37:39+02:00 PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. Brier,Frank W. Stehle,Nancy S. NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF 1968-12 text/html http://www.dtic.mil/docs/citations/AD0680427 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0680427 en eng http://www.dtic.mil/docs/citations/AD0680427 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost *BUILDINGS *SNOW POLAR REGIONS WIND DUCTS SCALE SIMULATION BORATES SODIUM COMPOUNDS SPHERES MCMURDO STATION Text 1968 ftdtic 2016-02-21T20:48:12Z On perennial snowfields, the problem of windblown snow is particularly acute because there is no depletion of the yearly snow accumulation. In an effort to alleviate drift problems, preliminary scale-model drift studies were conducted in a wind duct with a 2-foot-square cross section, using borax as a snow simulator. This series of tests was directed principally toward developing information on long-duration drift around spheres, hemispheres, cylinders, and multisided shapes. Because of the limited size of the wind duct, the building models were restricted to scale of 1/100; this, in turn, limited comparison of building heights and sizes. To alleviate this problem, a new 5-foot-wide, 2-foot-high wind duct was designed. Another scaling problem developed because of the lack of field data on snow-accumulation rates with which to compare the laboratory accumulation rate. Preliminary measurements concluded that 3 hours of wind-duct operation simulated 3 years of snow accumulation on the Ross Ice Shelf near McMurdo Station, which has an average annual accumulation of about 1 foot. Additional field measurements are being made to provide information drift where the annual accumulation is near 1/2 foot and 2 feet. (Author) Text Ice Ice Shelf permafrost Ross Ice Shelf Defense Technical Information Center: DTIC Technical Reports database McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Ross Ice Shelf |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost *BUILDINGS *SNOW POLAR REGIONS WIND DUCTS SCALE SIMULATION BORATES SODIUM COMPOUNDS SPHERES MCMURDO STATION |
spellingShingle |
Snow Ice and Permafrost *BUILDINGS *SNOW POLAR REGIONS WIND DUCTS SCALE SIMULATION BORATES SODIUM COMPOUNDS SPHERES MCMURDO STATION Brier,Frank W. Stehle,Nancy S. PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. |
topic_facet |
Snow Ice and Permafrost *BUILDINGS *SNOW POLAR REGIONS WIND DUCTS SCALE SIMULATION BORATES SODIUM COMPOUNDS SPHERES MCMURDO STATION |
description |
On perennial snowfields, the problem of windblown snow is particularly acute because there is no depletion of the yearly snow accumulation. In an effort to alleviate drift problems, preliminary scale-model drift studies were conducted in a wind duct with a 2-foot-square cross section, using borax as a snow simulator. This series of tests was directed principally toward developing information on long-duration drift around spheres, hemispheres, cylinders, and multisided shapes. Because of the limited size of the wind duct, the building models were restricted to scale of 1/100; this, in turn, limited comparison of building heights and sizes. To alleviate this problem, a new 5-foot-wide, 2-foot-high wind duct was designed. Another scaling problem developed because of the lack of field data on snow-accumulation rates with which to compare the laboratory accumulation rate. Preliminary measurements concluded that 3 hours of wind-duct operation simulated 3 years of snow accumulation on the Ross Ice Shelf near McMurdo Station, which has an average annual accumulation of about 1 foot. Additional field measurements are being made to provide information drift where the annual accumulation is near 1/2 foot and 2 feet. (Author) |
author2 |
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF |
format |
Text |
author |
Brier,Frank W. Stehle,Nancy S. |
author_facet |
Brier,Frank W. Stehle,Nancy S. |
author_sort |
Brier,Frank W. |
title |
PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. |
title_short |
PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. |
title_full |
PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. |
title_fullStr |
PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. |
title_full_unstemmed |
PRELIMINARY SCALE-MODEL SNOWDRIFT STUDIES. SERIES II. |
title_sort |
preliminary scale-model snowdrift studies. series ii. |
publishDate |
1968 |
url |
http://www.dtic.mil/docs/citations/AD0680427 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0680427 |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
McMurdo Station Ross Ice Shelf |
geographic_facet |
McMurdo Station Ross Ice Shelf |
genre |
Ice Ice Shelf permafrost Ross Ice Shelf |
genre_facet |
Ice Ice Shelf permafrost Ross Ice Shelf |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0680427 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027951036432384 |