A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res.
Abstract Year-long time-series of temperature, salinity and velocity from 12 locations throughout the Chukchi Sea from September 1990 to October 1991 document the physical transformations and significant seasonal changes in the throughflow from the Pacific to the Arctic Ocean. In most of the Chukchi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1084.3826 2023-05-15T15:03:42+02:00 A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. Rebecca A Woodgate Knut Aagaard Thomas Weingartner The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1084.3826 http://psc.apl.washington.edu/HLD/Chukchi/Woodgateetalpaper.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1084.3826 http://psc.apl.washington.edu/HLD/Chukchi/Woodgateetalpaper.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://psc.apl.washington.edu/HLD/Chukchi/Woodgateetalpaper.pdf text 2005 ftciteseerx 2020-05-03T00:30:12Z Abstract Year-long time-series of temperature, salinity and velocity from 12 locations throughout the Chukchi Sea from September 1990 to October 1991 document the physical transformations and significant seasonal changes in the throughflow from the Pacific to the Arctic Ocean. In most of the Chukchi, the flow field responds rapidly to the local wind, with high spatial coherence over the basin scale -effectively the ocean takes on the lengthscales of the wind forcing. The mean flow is northwards, opposed by the mean wind, but presumably forced by a sea-level slope between the Pacific and the Arctic, which these data suggest may have significant variability on long (order a year) timescales. The high flow variability yields a significant range of residence times for waters in the Chukchi (i.e. 1-6 months for half the transit) with larger values in winter. Temperature and salinity (TS) records show a strong annual cycle of freezing, salinization, freshening and warming, with sizable interannual variability. The largest seasonal variability is seen in the east, where warm, fresh waters escape from the buoyant, coastally trapped Alaskan Coastal Current into the interior Chukchi. In the west, the seasonally present Siberian Coastal Current provides a source of cold, fresh waters and a flow field less linked to the local wind. Cold, dense polynya waters are observed near Cape Lisburne and occasional upwelling events bring lower halocline waters to the head of Barrow Canyon. For about half the year, the entire Chukchi is condensed down into a small region of TS-space at the freezing temperature, suggesting ventilation occurs to near-bottom driven by cooling and brine rejection in autumn/winter and by storm-mixing all year. transit through the Chukchi, but remarkably little change in salinity. In fact, with the exception of (in this year small) polynya events, the salinity cycle in the Chukchi can be considered as being set by the input through Bering Strait. Thus, since density is dominated by salinity at these ... Text Arctic Arctic Ocean Bering Strait Chukchi Chukchi Sea Unknown Arctic Arctic Ocean Barrow Canyon ENVELOPE(-154.000,-154.000,72.500,72.500) Bering Strait Chukchi Sea Pacific |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
Abstract Year-long time-series of temperature, salinity and velocity from 12 locations throughout the Chukchi Sea from September 1990 to October 1991 document the physical transformations and significant seasonal changes in the throughflow from the Pacific to the Arctic Ocean. In most of the Chukchi, the flow field responds rapidly to the local wind, with high spatial coherence over the basin scale -effectively the ocean takes on the lengthscales of the wind forcing. The mean flow is northwards, opposed by the mean wind, but presumably forced by a sea-level slope between the Pacific and the Arctic, which these data suggest may have significant variability on long (order a year) timescales. The high flow variability yields a significant range of residence times for waters in the Chukchi (i.e. 1-6 months for half the transit) with larger values in winter. Temperature and salinity (TS) records show a strong annual cycle of freezing, salinization, freshening and warming, with sizable interannual variability. The largest seasonal variability is seen in the east, where warm, fresh waters escape from the buoyant, coastally trapped Alaskan Coastal Current into the interior Chukchi. In the west, the seasonally present Siberian Coastal Current provides a source of cold, fresh waters and a flow field less linked to the local wind. Cold, dense polynya waters are observed near Cape Lisburne and occasional upwelling events bring lower halocline waters to the head of Barrow Canyon. For about half the year, the entire Chukchi is condensed down into a small region of TS-space at the freezing temperature, suggesting ventilation occurs to near-bottom driven by cooling and brine rejection in autumn/winter and by storm-mixing all year. transit through the Chukchi, but remarkably little change in salinity. In fact, with the exception of (in this year small) polynya events, the salinity cycle in the Chukchi can be considered as being set by the input through Bering Strait. Thus, since density is dominated by salinity at these ... |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Rebecca A Woodgate Knut Aagaard Thomas Weingartner |
spellingShingle |
Rebecca A Woodgate Knut Aagaard Thomas Weingartner A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. |
author_facet |
Rebecca A Woodgate Knut Aagaard Thomas Weingartner |
author_sort |
Rebecca A Woodgate |
title |
A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. |
title_short |
A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. |
title_full |
A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. |
title_fullStr |
A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. |
title_full_unstemmed |
A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990-1991”, Deep-Sea Res. |
title_sort |
year in the physical oceanography of the chukchi sea: moored measurements from autumn 1990-1991”, deep-sea res. |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1084.3826 http://psc.apl.washington.edu/HLD/Chukchi/Woodgateetalpaper.pdf |
long_lat |
ENVELOPE(-154.000,-154.000,72.500,72.500) |
geographic |
Arctic Arctic Ocean Barrow Canyon Bering Strait Chukchi Sea Pacific |
geographic_facet |
Arctic Arctic Ocean Barrow Canyon Bering Strait Chukchi Sea Pacific |
genre |
Arctic Arctic Ocean Bering Strait Chukchi Chukchi Sea |
genre_facet |
Arctic Arctic Ocean Bering Strait Chukchi Chukchi Sea |
op_source |
http://psc.apl.washington.edu/HLD/Chukchi/Woodgateetalpaper.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1084.3826 http://psc.apl.washington.edu/HLD/Chukchi/Woodgateetalpaper.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766335551756042240 |