SURFACE TEMPERATURES AND GROWTH OF SEA ICE.
Sea-ice surface temperatures observed at Eureka, N.W.T., Canada, during 1949-50 and 1950-51 were used to compute the numerical value of the expression k/L rho, where k = thermal conductivity, L = latent heat of fusion and rho = density. The numerical value for these combined physical properties of s...
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ftdtic:AD0653136 2023-05-15T16:37:12+02:00 SURFACE TEMPERATURES AND GROWTH OF SEA ICE. Bilello,Michael A. SNOW ICE AND PERMAFROST RESEARCH ESTABLISHMENT WILMETTE ILL 1961-01 text/html http://www.dtic.mil/docs/citations/AD0653136 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0653136 en eng http://www.dtic.mil/docs/citations/AD0653136 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost (*SEA ICE PHYSICAL PROPERTIES) SURFACE TEMPERATURE SALINITY THERMAL CONDUCTIVITY DENSITY HEAT OF FUSION NUMERICAL ANALYSIS Text 1961 ftdtic 2016-02-18T20:09:47Z Sea-ice surface temperatures observed at Eureka, N.W.T., Canada, during 1949-50 and 1950-51 were used to compute the numerical value of the expression k/L rho, where k = thermal conductivity, L = latent heat of fusion and rho = density. The numerical value for these combined physical properties of sea ice was found to increase from approximately 0.000047 to 0.00007 during ice growth (between 6 November and 22 December) from 0.6 to 1 m thickness. During the increase from 1.1 to 1.3 m (between 20 January and 10 February) the value of k/L rho ranged from 0.00007 to 0.00008 and then decreased slightly during the rest of the growth period. These variations in the value of k/L rho throughout the winter season were considered as changes in the effective conductivity caused by physical changes and distribution of brine in the sea ice. Since no observations on sea-ice salinity were made at Eureka, it was not possible to investigate the effect of the physical properties separately. A study on the relation between sea-ice accretion and temperature gradient disclosed a correlation coefficient of r = 0.73. (Author) Text Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database Canada Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Rho ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost (*SEA ICE PHYSICAL PROPERTIES) SURFACE TEMPERATURE SALINITY THERMAL CONDUCTIVITY DENSITY HEAT OF FUSION NUMERICAL ANALYSIS |
spellingShingle |
Snow Ice and Permafrost (*SEA ICE PHYSICAL PROPERTIES) SURFACE TEMPERATURE SALINITY THERMAL CONDUCTIVITY DENSITY HEAT OF FUSION NUMERICAL ANALYSIS Bilello,Michael A. SURFACE TEMPERATURES AND GROWTH OF SEA ICE. |
topic_facet |
Snow Ice and Permafrost (*SEA ICE PHYSICAL PROPERTIES) SURFACE TEMPERATURE SALINITY THERMAL CONDUCTIVITY DENSITY HEAT OF FUSION NUMERICAL ANALYSIS |
description |
Sea-ice surface temperatures observed at Eureka, N.W.T., Canada, during 1949-50 and 1950-51 were used to compute the numerical value of the expression k/L rho, where k = thermal conductivity, L = latent heat of fusion and rho = density. The numerical value for these combined physical properties of sea ice was found to increase from approximately 0.000047 to 0.00007 during ice growth (between 6 November and 22 December) from 0.6 to 1 m thickness. During the increase from 1.1 to 1.3 m (between 20 January and 10 February) the value of k/L rho ranged from 0.00007 to 0.00008 and then decreased slightly during the rest of the growth period. These variations in the value of k/L rho throughout the winter season were considered as changes in the effective conductivity caused by physical changes and distribution of brine in the sea ice. Since no observations on sea-ice salinity were made at Eureka, it was not possible to investigate the effect of the physical properties separately. A study on the relation between sea-ice accretion and temperature gradient disclosed a correlation coefficient of r = 0.73. (Author) |
author2 |
SNOW ICE AND PERMAFROST RESEARCH ESTABLISHMENT WILMETTE ILL |
format |
Text |
author |
Bilello,Michael A. |
author_facet |
Bilello,Michael A. |
author_sort |
Bilello,Michael A. |
title |
SURFACE TEMPERATURES AND GROWTH OF SEA ICE. |
title_short |
SURFACE TEMPERATURES AND GROWTH OF SEA ICE. |
title_full |
SURFACE TEMPERATURES AND GROWTH OF SEA ICE. |
title_fullStr |
SURFACE TEMPERATURES AND GROWTH OF SEA ICE. |
title_full_unstemmed |
SURFACE TEMPERATURES AND GROWTH OF SEA ICE. |
title_sort |
surface temperatures and growth of sea ice. |
publishDate |
1961 |
url |
http://www.dtic.mil/docs/citations/AD0653136 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0653136 |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
geographic |
Canada Eureka Rho |
geographic_facet |
Canada Eureka Rho |
genre |
Ice permafrost Sea ice |
genre_facet |
Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0653136 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027497234759680 |