Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps.
During 1975 and 1976, measurements of sea ice motion were made as part of the Arctic Ice Dynamics Joint Experiment (AIDJEX). In an earlier report (Thorndike and Cheung, 1977), energy at the inertial period was attenuated by approximately 50% due to the choice of a low covariance factor, Q = 100, dur...
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ftdtic:ADA082211 2023-05-15T14:53:34+02:00 Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. Thorndike,A S Manley,T O LAMONT-DOHERTY GEOLOGICAL OBSERVATORY PALISADES N Y 1980-02 text/html http://www.dtic.mil/docs/citations/ADA082211 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA082211 en eng http://www.dtic.mil/docs/citations/ADA082211 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost *DRIFT *SEA ICE VELOCITY POSITION(LOCATION) STATISTICAL DATA KALMAN FILTERING POSITION FINDING TABLES(DATA) STATISTICAL ANALYSIS MANNED GROUND STATIONS RADIO NAVIGATION BEAUFORT SEA ARCTIC OCEAN DOPPLER NAVIGATION *AIDJEX project WUNR307359 Text 1980 ftdtic 2016-02-20T17:48:02Z During 1975 and 1976, measurements of sea ice motion were made as part of the Arctic Ice Dynamics Joint Experiment (AIDJEX). In an earlier report (Thorndike and Cheung, 1977), energy at the inertial period was attenuated by approximately 50% due to the choice of a low covariance factor, Q = 100, during Kalman filtering. For Oceanographic investigations, the data set proved to be unacceptable particularly in the summer months when there is a significant amount of energy at the inertial period. This report is the result of the reprocessing of the original position data taken from the four manned camps (Caribou, Blue Fox, Snowbird and Big Bear) with a covariance factor Q = 100000. The higher Q allows data of the inertial period and longer to pass through the filter with less than 1 percent attenuation. Because of the large amount of information contained in the data set, it was divided into two parts. This report (Vol. 1) provides position and ice velocity from 11 April 1975 to 17 October 1975. Vol. 2 covers the remainder of the data, 18 October 1975 to 4 May 1976. (Author) See also AD-A082 212. Text Arctic Arctic Ocean Beaufort Sea Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost *DRIFT *SEA ICE VELOCITY POSITION(LOCATION) STATISTICAL DATA KALMAN FILTERING POSITION FINDING TABLES(DATA) STATISTICAL ANALYSIS MANNED GROUND STATIONS RADIO NAVIGATION BEAUFORT SEA ARCTIC OCEAN DOPPLER NAVIGATION *AIDJEX project WUNR307359 |
spellingShingle |
Snow Ice and Permafrost *DRIFT *SEA ICE VELOCITY POSITION(LOCATION) STATISTICAL DATA KALMAN FILTERING POSITION FINDING TABLES(DATA) STATISTICAL ANALYSIS MANNED GROUND STATIONS RADIO NAVIGATION BEAUFORT SEA ARCTIC OCEAN DOPPLER NAVIGATION *AIDJEX project WUNR307359 Thorndike,A S Manley,T O Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. |
topic_facet |
Snow Ice and Permafrost *DRIFT *SEA ICE VELOCITY POSITION(LOCATION) STATISTICAL DATA KALMAN FILTERING POSITION FINDING TABLES(DATA) STATISTICAL ANALYSIS MANNED GROUND STATIONS RADIO NAVIGATION BEAUFORT SEA ARCTIC OCEAN DOPPLER NAVIGATION *AIDJEX project WUNR307359 |
description |
During 1975 and 1976, measurements of sea ice motion were made as part of the Arctic Ice Dynamics Joint Experiment (AIDJEX). In an earlier report (Thorndike and Cheung, 1977), energy at the inertial period was attenuated by approximately 50% due to the choice of a low covariance factor, Q = 100, during Kalman filtering. For Oceanographic investigations, the data set proved to be unacceptable particularly in the summer months when there is a significant amount of energy at the inertial period. This report is the result of the reprocessing of the original position data taken from the four manned camps (Caribou, Blue Fox, Snowbird and Big Bear) with a covariance factor Q = 100000. The higher Q allows data of the inertial period and longer to pass through the filter with less than 1 percent attenuation. Because of the large amount of information contained in the data set, it was divided into two parts. This report (Vol. 1) provides position and ice velocity from 11 April 1975 to 17 October 1975. Vol. 2 covers the remainder of the data, 18 October 1975 to 4 May 1976. (Author) See also AD-A082 212. |
author2 |
LAMONT-DOHERTY GEOLOGICAL OBSERVATORY PALISADES N Y |
format |
Text |
author |
Thorndike,A S Manley,T O |
author_facet |
Thorndike,A S Manley,T O |
author_sort |
Thorndike,A S |
title |
Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. |
title_short |
Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. |
title_full |
Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. |
title_fullStr |
Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. |
title_full_unstemmed |
Updated Position and Ice Velocity for the Arctic Ice Dynamics Joint Experiment. (AIDJEX) Manned Camps. |
title_sort |
updated position and ice velocity for the arctic ice dynamics joint experiment. (aidjex) manned camps. |
publishDate |
1980 |
url |
http://www.dtic.mil/docs/citations/ADA082211 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA082211 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Beaufort Sea Ice permafrost Sea ice |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA082211 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766325177306578944 |