PROTECTIVE COVERINGS FOR ICE AND SNOW.
Summer deterioration of snow and ice surfaces due to high solar radiation and near-melting temperatures hampers the year-round use of natural ice islands and smooth sea-ice areas in the Arctic Ocean, and permanent snow and ice areas in the Antarctic. Sawdust has been used successfully in the Califor...
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ftdtic:AD0635963 2023-05-15T13:51:45+02:00 PROTECTIVE COVERINGS FOR ICE AND SNOW. STEHLE, N. S. NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF 1966-06 text/html http://www.dtic.mil/docs/citations/AD0635963 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0635963 en eng http://www.dtic.mil/docs/citations/AD0635963 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Coatings Colorants and Finishes *ICE *SNOW PROTECTIVE COVERINGS THERMAL INSULATION DEGRADATION WOOD PARTICLES FOAM EXPANDED PLASTICS ISOCYANATES POLAR REGIONS ICE ISLANDS Text 1966 ftdtic 2016-02-21T19:07:04Z Summer deterioration of snow and ice surfaces due to high solar radiation and near-melting temperatures hampers the year-round use of natural ice islands and smooth sea-ice areas in the Arctic Ocean, and permanent snow and ice areas in the Antarctic. Sawdust has been used successfully in the California Sierras for protecting compacted-snow areas during periods of alternating above-and below-freezing temperatures and high solar radiation, but its scarcity and shipping bulk preclude its use in polar areas. Urethane foam has proven even more successful than sawdust as a protective covering in laboratory tests during alternating above-and below-freezing temperatures and simulated solar radiation of 0.8 Langley/min (gm-cal sq cm/min). Use of snow or chipped ice on ice surfaces in the Antarctic has generally provided sufficient protection to prevent deterioration and ablation, but warmer environments may preclude use of these natural materials. The use of snow and chipped ice as protective coverings should be exploited and further studies should be made to gain quantitative knowledge on the protective properties of these natural materials and to determine the practical application of urethane foam in polar areas. (Author) Text Antarc* Antarctic Arctic Arctic Ocean Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database Antarctic Arctic Arctic Ocean The Antarctic |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Coatings Colorants and Finishes *ICE *SNOW PROTECTIVE COVERINGS THERMAL INSULATION DEGRADATION WOOD PARTICLES FOAM EXPANDED PLASTICS ISOCYANATES POLAR REGIONS ICE ISLANDS |
spellingShingle |
Snow Ice and Permafrost Coatings Colorants and Finishes *ICE *SNOW PROTECTIVE COVERINGS THERMAL INSULATION DEGRADATION WOOD PARTICLES FOAM EXPANDED PLASTICS ISOCYANATES POLAR REGIONS ICE ISLANDS STEHLE, N. S. PROTECTIVE COVERINGS FOR ICE AND SNOW. |
topic_facet |
Snow Ice and Permafrost Coatings Colorants and Finishes *ICE *SNOW PROTECTIVE COVERINGS THERMAL INSULATION DEGRADATION WOOD PARTICLES FOAM EXPANDED PLASTICS ISOCYANATES POLAR REGIONS ICE ISLANDS |
description |
Summer deterioration of snow and ice surfaces due to high solar radiation and near-melting temperatures hampers the year-round use of natural ice islands and smooth sea-ice areas in the Arctic Ocean, and permanent snow and ice areas in the Antarctic. Sawdust has been used successfully in the California Sierras for protecting compacted-snow areas during periods of alternating above-and below-freezing temperatures and high solar radiation, but its scarcity and shipping bulk preclude its use in polar areas. Urethane foam has proven even more successful than sawdust as a protective covering in laboratory tests during alternating above-and below-freezing temperatures and simulated solar radiation of 0.8 Langley/min (gm-cal sq cm/min). Use of snow or chipped ice on ice surfaces in the Antarctic has generally provided sufficient protection to prevent deterioration and ablation, but warmer environments may preclude use of these natural materials. The use of snow and chipped ice as protective coverings should be exploited and further studies should be made to gain quantitative knowledge on the protective properties of these natural materials and to determine the practical application of urethane foam in polar areas. (Author) |
author2 |
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF |
format |
Text |
author |
STEHLE, N. S. |
author_facet |
STEHLE, N. S. |
author_sort |
STEHLE, N. S. |
title |
PROTECTIVE COVERINGS FOR ICE AND SNOW. |
title_short |
PROTECTIVE COVERINGS FOR ICE AND SNOW. |
title_full |
PROTECTIVE COVERINGS FOR ICE AND SNOW. |
title_fullStr |
PROTECTIVE COVERINGS FOR ICE AND SNOW. |
title_full_unstemmed |
PROTECTIVE COVERINGS FOR ICE AND SNOW. |
title_sort |
protective coverings for ice and snow. |
publishDate |
1966 |
url |
http://www.dtic.mil/docs/citations/AD0635963 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0635963 |
geographic |
Antarctic Arctic Arctic Ocean The Antarctic |
geographic_facet |
Antarctic Arctic Arctic Ocean The Antarctic |
genre |
Antarc* Antarctic Arctic Arctic Ocean Ice permafrost Sea ice |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0635963 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
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1766255778217328640 |