Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker.
During the weeks of May 1984, a CRREL impulse radar system was used onboard the R V Polarstern to measure the thickness of level first-year sea ice. The purpose was to determine the onboard performance of the radar system and, if possible, provide ice thickness information to researchers conducting...
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ftdtic:ADA163229 2023-05-15T16:37:15+02:00 Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. Martinson,Carl R. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1985-11 text/html http://www.dtic.mil/docs/citations/ADA163229 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA163229 en eng http://www.dtic.mil/docs/citations/ADA163229 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Active & Passive Radar Detection & Equipment *RADAR *SEA ICE THICKNESS SHIPBOARD RADAR EQUIPMENT RADAR ANTENNAS ULTRAHIGH FREQUENCY RESEARCH SHIPS SOUNDING PE61101A AS91D Text 1985 ftdtic 2016-02-21T01:22:05Z During the weeks of May 1984, a CRREL impulse radar system was used onboard the R V Polarstern to measure the thickness of level first-year sea ice. The purpose was to determine the onboard performance of the radar system and, if possible, provide ice thickness information to researchers conducting other tests. Radar data were compared with ice thickness determined by drilling, indicating that radar soundings could be a viable means of collecting ice thickness information, A lack of adequate coordination between the two measurements methods prevented a point-by-point comparison of ice thicknesses; the comparisons were based on averages for particular test runs. The differences of the averages for the two measuring methods ranged from 0.03 m to 0.22 m with a mean variation in the differences of 0.13 m fore eight runs. There may have been some interference from the ship's hull during data collection because of the location of the antenna. However, an unidentified signal in some of the data does not appear to obscure a valid return from the bottom of the ice sheet. (Author) Errata sheet inserted. Text Ice Ice Sheet permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
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English |
topic |
Snow Ice and Permafrost Active & Passive Radar Detection & Equipment *RADAR *SEA ICE THICKNESS SHIPBOARD RADAR EQUIPMENT RADAR ANTENNAS ULTRAHIGH FREQUENCY RESEARCH SHIPS SOUNDING PE61101A AS91D |
spellingShingle |
Snow Ice and Permafrost Active & Passive Radar Detection & Equipment *RADAR *SEA ICE THICKNESS SHIPBOARD RADAR EQUIPMENT RADAR ANTENNAS ULTRAHIGH FREQUENCY RESEARCH SHIPS SOUNDING PE61101A AS91D Martinson,Carl R. Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. |
topic_facet |
Snow Ice and Permafrost Active & Passive Radar Detection & Equipment *RADAR *SEA ICE THICKNESS SHIPBOARD RADAR EQUIPMENT RADAR ANTENNAS ULTRAHIGH FREQUENCY RESEARCH SHIPS SOUNDING PE61101A AS91D |
description |
During the weeks of May 1984, a CRREL impulse radar system was used onboard the R V Polarstern to measure the thickness of level first-year sea ice. The purpose was to determine the onboard performance of the radar system and, if possible, provide ice thickness information to researchers conducting other tests. Radar data were compared with ice thickness determined by drilling, indicating that radar soundings could be a viable means of collecting ice thickness information, A lack of adequate coordination between the two measurements methods prevented a point-by-point comparison of ice thicknesses; the comparisons were based on averages for particular test runs. The differences of the averages for the two measuring methods ranged from 0.03 m to 0.22 m with a mean variation in the differences of 0.13 m fore eight runs. There may have been some interference from the ship's hull during data collection because of the location of the antenna. However, an unidentified signal in some of the data does not appear to obscure a valid return from the bottom of the ice sheet. (Author) Errata sheet inserted. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Martinson,Carl R. |
author_facet |
Martinson,Carl R. |
author_sort |
Martinson,Carl R. |
title |
Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. |
title_short |
Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. |
title_full |
Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. |
title_fullStr |
Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. |
title_full_unstemmed |
Impulse Radar Sounding of Level First-Year Sea Ice from an Icebreaker. |
title_sort |
impulse radar sounding of level first-year sea ice from an icebreaker. |
publishDate |
1985 |
url |
http://www.dtic.mil/docs/citations/ADA163229 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA163229 |
genre |
Ice Ice Sheet permafrost Sea ice |
genre_facet |
Ice Ice Sheet permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA163229 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027546634223616 |