Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea.
Trajectories of five free-drifting satellite-tracked buoys released during the summer of 1979 in open water in the Beaufort Sea north of the Tuktoyaktuk Peninsula indicate a pronounced east-to-west near-surface flow along the northern Alaskan coast. The direction of the buoy movement is in general a...
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ftdtic:ADA126344 2023-05-15T15:40:08+02:00 Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. Murphy,D L Tebeau,P A Lissauer,I M COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT 1981-06 text/html http://www.dtic.mil/docs/citations/ADA126344 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA126344 en eng http://www.dtic.mil/docs/citations/ADA126344 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Physical and Dynamic Oceanography *OCEAN CURRENTS *BUOYS POSITION(LOCATION) WIND DRIFT SURFACE WATERS DATA ACQUISITION SEA ICE BEAUFORT SEA TRACKS Text 1981 ftdtic 2016-02-20T22:07:11Z Trajectories of five free-drifting satellite-tracked buoys released during the summer of 1979 in open water in the Beaufort Sea north of the Tuktoyaktuk Peninsula indicate a pronounced east-to-west near-surface flow along the northern Alaskan coast. The direction of the buoy movement is in general agreement with the direction of the flow in the southern portion of the Beaufort Sea Gyre as previously calculated from dynamic topography. The buoy tracks and speeds differ from the surface circulation calculated from the dynamic topography in two respects. First, the average buoy speeds (approx. 20 cm/s) were approximately 3 times larger than calculated surface currents. Second, three of the buoys moved onto the Chukchi Sea shelf near Wrangel Island instead of turning to the northwest near Point Barrow with the Beaufort Sea Gyre. The remaining two buoys stopped transmitting before reaching Point Barrow. Analysis of the available wind data suggests that the surface currents as indicated by the motions of the buoys were strongly influenced by the local wind. For surface wind speeds, or = 5 m/s the buoys moved 22 deg to the right of the wind at 3.8% of the wind speed. (Author) Text Beaufort Sea Chukchi Chukchi Sea Point Barrow Sea ice Wrangel Island Defense Technical Information Center: DTIC Technical Reports database Chukchi Sea Tuktoyaktuk ENVELOPE(-133.006,-133.006,69.425,69.425) Tuktoyaktuk Peninsula ENVELOPE(-131.339,-131.339,69.750,69.750) Wrangel Island ENVELOPE(-179.385,-179.385,71.244,71.244) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography *OCEAN CURRENTS *BUOYS POSITION(LOCATION) WIND DRIFT SURFACE WATERS DATA ACQUISITION SEA ICE BEAUFORT SEA TRACKS |
spellingShingle |
Physical and Dynamic Oceanography *OCEAN CURRENTS *BUOYS POSITION(LOCATION) WIND DRIFT SURFACE WATERS DATA ACQUISITION SEA ICE BEAUFORT SEA TRACKS Murphy,D L Tebeau,P A Lissauer,I M Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. |
topic_facet |
Physical and Dynamic Oceanography *OCEAN CURRENTS *BUOYS POSITION(LOCATION) WIND DRIFT SURFACE WATERS DATA ACQUISITION SEA ICE BEAUFORT SEA TRACKS |
description |
Trajectories of five free-drifting satellite-tracked buoys released during the summer of 1979 in open water in the Beaufort Sea north of the Tuktoyaktuk Peninsula indicate a pronounced east-to-west near-surface flow along the northern Alaskan coast. The direction of the buoy movement is in general agreement with the direction of the flow in the southern portion of the Beaufort Sea Gyre as previously calculated from dynamic topography. The buoy tracks and speeds differ from the surface circulation calculated from the dynamic topography in two respects. First, the average buoy speeds (approx. 20 cm/s) were approximately 3 times larger than calculated surface currents. Second, three of the buoys moved onto the Chukchi Sea shelf near Wrangel Island instead of turning to the northwest near Point Barrow with the Beaufort Sea Gyre. The remaining two buoys stopped transmitting before reaching Point Barrow. Analysis of the available wind data suggests that the surface currents as indicated by the motions of the buoys were strongly influenced by the local wind. For surface wind speeds, or = 5 m/s the buoys moved 22 deg to the right of the wind at 3.8% of the wind speed. (Author) |
author2 |
COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT |
format |
Text |
author |
Murphy,D L Tebeau,P A Lissauer,I M |
author_facet |
Murphy,D L Tebeau,P A Lissauer,I M |
author_sort |
Murphy,D L |
title |
Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. |
title_short |
Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. |
title_full |
Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. |
title_fullStr |
Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. |
title_full_unstemmed |
Long-Term Movement of Satellite-Tracked Buoys in the Beaufort Sea. |
title_sort |
long-term movement of satellite-tracked buoys in the beaufort sea. |
publishDate |
1981 |
url |
http://www.dtic.mil/docs/citations/ADA126344 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA126344 |
long_lat |
ENVELOPE(-133.006,-133.006,69.425,69.425) ENVELOPE(-131.339,-131.339,69.750,69.750) ENVELOPE(-179.385,-179.385,71.244,71.244) |
geographic |
Chukchi Sea Tuktoyaktuk Tuktoyaktuk Peninsula Wrangel Island |
geographic_facet |
Chukchi Sea Tuktoyaktuk Tuktoyaktuk Peninsula Wrangel Island |
genre |
Beaufort Sea Chukchi Chukchi Sea Point Barrow Sea ice Wrangel Island |
genre_facet |
Beaufort Sea Chukchi Chukchi Sea Point Barrow Sea ice Wrangel Island |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA126344 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766372254504976384 |