Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990
In an attempt to gain a better understanding of the intermediate depth circulation of the Greenland Sea,16 SOFAR floats were launched into Fram Strait in 1988 and 1989. Between the fall of 1989 and the summer of 1990, five of these floats were tracked by autonomous listening stations (ALS) positione...
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Monterey, California. Naval Postgraduate School
1991
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ftnavalpschool:oai:calhoun.nps.edu:10945/26354 2024-06-09T07:45:40+00:00 Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 McCarren, David Hilton Bourke, Robert H. Gascard, Jean Claude Naval Postgraduate School (U.S.) Oceanography Garfield, Newell, III 1991-12 75 p. application/pdf https://hdl.handle.net/10945/26354 en_US eng Monterey, California. Naval Postgraduate School https://hdl.handle.net/10945/26354 This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. Greenland Sea East Greenland Current Jan Mayen Current SOFAR floats Fram Strait Thesis 1991 ftnavalpschool 2024-05-15T00:14:48Z In an attempt to gain a better understanding of the intermediate depth circulation of the Greenland Sea,16 SOFAR floats were launched into Fram Strait in 1988 and 1989. Between the fall of 1989 and the summer of 1990, five of these floats were tracked by autonomous listening stations (ALS) positioned to provide tracking in the southern portion of the Greenland Sea. One float (MZ86) provided tracking information for ten months of the ALS deployment period. The other floats provided tracking information ranging from several days to two months. These float tracks delineated the intermediate depth circulation around the Greenland Sea gyre. The MZ86 trajectory exited the Boreas Basin and crossed the Greenland Fracture Zone with a speed of approximately 17 cm s-1. Along the Greenland continental slope the flow increased to 28 cm s- 1 suggesting the presence of a bottom trapped boundary current. Near 74°N the trajectory turned eastward under the shallower warm core of the Jan Mayen Current at 4 cm s-1. This leg closed the Greenland Sea gyre and also shows evidence of interactions with filaments of the Norwegian Atlantic Current (NAC) coming through the Mohns Ridge at these intermediate depths. Two other floats demonstrated tracks which crossed the Mohns Ridge and drifted farther to the east, mixing with the waters of the NAC. Approved for public release; distribution is unlimited. Lieutenant Commander, United States Navy http://archive.org/details/analysisofdrifti1094526354 Thesis East Greenland east greenland current Fram Strait Greenland Greenland Sea Jan Mayen Naval Postgraduate School: Calhoun Boreas ENVELOPE(-3.933,-3.933,-71.300,-71.300) Boreas Basin ENVELOPE(1.000,1.000,77.500,77.500) Greenland Greenland Fracture Zone ENVELOPE(0.500,0.500,75.500,75.500) Jan Mayen |
institution |
Open Polar |
collection |
Naval Postgraduate School: Calhoun |
op_collection_id |
ftnavalpschool |
language |
English |
topic |
Greenland Sea East Greenland Current Jan Mayen Current SOFAR floats Fram Strait |
spellingShingle |
Greenland Sea East Greenland Current Jan Mayen Current SOFAR floats Fram Strait McCarren, David Hilton Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 |
topic_facet |
Greenland Sea East Greenland Current Jan Mayen Current SOFAR floats Fram Strait |
description |
In an attempt to gain a better understanding of the intermediate depth circulation of the Greenland Sea,16 SOFAR floats were launched into Fram Strait in 1988 and 1989. Between the fall of 1989 and the summer of 1990, five of these floats were tracked by autonomous listening stations (ALS) positioned to provide tracking in the southern portion of the Greenland Sea. One float (MZ86) provided tracking information for ten months of the ALS deployment period. The other floats provided tracking information ranging from several days to two months. These float tracks delineated the intermediate depth circulation around the Greenland Sea gyre. The MZ86 trajectory exited the Boreas Basin and crossed the Greenland Fracture Zone with a speed of approximately 17 cm s-1. Along the Greenland continental slope the flow increased to 28 cm s- 1 suggesting the presence of a bottom trapped boundary current. Near 74°N the trajectory turned eastward under the shallower warm core of the Jan Mayen Current at 4 cm s-1. This leg closed the Greenland Sea gyre and also shows evidence of interactions with filaments of the Norwegian Atlantic Current (NAC) coming through the Mohns Ridge at these intermediate depths. Two other floats demonstrated tracks which crossed the Mohns Ridge and drifted farther to the east, mixing with the waters of the NAC. Approved for public release; distribution is unlimited. Lieutenant Commander, United States Navy http://archive.org/details/analysisofdrifti1094526354 |
author2 |
Bourke, Robert H. Gascard, Jean Claude Naval Postgraduate School (U.S.) Oceanography Garfield, Newell, III |
format |
Thesis |
author |
McCarren, David Hilton |
author_facet |
McCarren, David Hilton |
author_sort |
McCarren, David Hilton |
title |
Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 |
title_short |
Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 |
title_full |
Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 |
title_fullStr |
Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 |
title_full_unstemmed |
Analysis of drifting SOFAR buoys in the Greenland Sea, 1989-1990 |
title_sort |
analysis of drifting sofar buoys in the greenland sea, 1989-1990 |
publisher |
Monterey, California. Naval Postgraduate School |
publishDate |
1991 |
url |
https://hdl.handle.net/10945/26354 |
long_lat |
ENVELOPE(-3.933,-3.933,-71.300,-71.300) ENVELOPE(1.000,1.000,77.500,77.500) ENVELOPE(0.500,0.500,75.500,75.500) |
geographic |
Boreas Boreas Basin Greenland Greenland Fracture Zone Jan Mayen |
geographic_facet |
Boreas Boreas Basin Greenland Greenland Fracture Zone Jan Mayen |
genre |
East Greenland east greenland current Fram Strait Greenland Greenland Sea Jan Mayen |
genre_facet |
East Greenland east greenland current Fram Strait Greenland Greenland Sea Jan Mayen |
op_relation |
https://hdl.handle.net/10945/26354 |
op_rights |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
_version_ |
1801375136134201344 |