Records |
Author |
Dukhovskoy, D; Bourassa, M |
Title |
Comparison of ocean surface wind products in the perspective of ocean modeling of the Nordic Seas |
Type |
$loc['typeConference Article'] |
Year |
2011 |
Publication |
OCEANS 2011 |
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Keywords |
scatterometer winds; Arctic Ocean; ocean modeling |
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Conference |
MTS/IEEE OCEANS Conference |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
315 |
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Author |
Ilicak, M.; Drange, H.; Wang, Q.; Gerdes, R.; Aksenov, Y.; Bailey, D.; Bentsen, M.; Biastoch, A.; Bozec, A.; Böning, C.; Cassou, C.; Chassignet, E.; Coward, A.C.; Curry, B.; Danabasoglu, G.; Danilov, S.; Fernandez, E.; Fogli, P.G.; Fujii, Y.; Griffies, S.M.; Iovino, D.; Jahn, A.; Jung, T.; Large, W.G.; Lee, C.; Lique, C.; Lu, J.; Masina, S.; George Nurser, A.J.; Roth, C.; Salas y Mélia, D.; Samuels, B.L.; Spence, P.; Tsujino, H.; Valcke, S.; Voldoire, A.; Wang, X.; Yeager, S.G. |
Title |
An assessment of the Arctic Ocean in a suite of interannual CORE-II simulations. Part III: Hydrography and fluxes |
Type |
$loc['typeJournal Article'] |
Year |
2016 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
100 |
Issue |
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Pages |
141-161 |
Keywords |
Arctic Ocean; Atlantic Water; St. Anna Trough; Density currents; CORE-II atmospheric forcing |
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ISSN |
1463-5003 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
80 |
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Author |
Morrison, T.; Dukhovskoy, D. S.; McClean, J.; Gille, S. T.; Chassignet, E. |
Title |
Causes of the anomalous heat flux onto the Greenland continental shelf |
Type |
$loc['typeAbstract'] |
Year |
2018 |
Publication |
American Geophysical Union |
Abbreviated Journal |
AGU |
Volume |
Fall Meeting |
Issue |
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Pages |
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Keywords |
0726 Ice sheets, CRYOSPHEREDE: 4207 Arctic and Antarctic oceanography, OCEANOGRAPHY: GENERALDE: 4215 Climate and interannual variability, OCEANOGRAPHY: GENERALDE: 4255 Numerical modeling, OCEANOGRAPHY: GENERAL |
Abstract |
On the continental shelf around Greenland, warm-salty Atlantic water at depth fills the deep narrow fjords where Greenland's tidewater glaciers terminate. Changes in the quantity or properties of this water mass starting in the mid 1990s is thought to be largely responsible for increased ocean-driven melting of the Greenland Ice Sheet. Using high-resolution (nominal 0.1-degree) ocean circulation models we cannot accurately resolve small-scale processes on the shelf or within fjords. However, we can assess changes in the flux of heat via Atlantic water onto the continental shelf. To understand the causes of the anomalous heat that has reached the shelf we examine heat content of subtropical gyre water and shifts in the North Atlantic and Atlantic Multidecadal Oscillations.
We compare changes in heat transport in two eddy permitting simulations: a global 0.1 degree (5-7km around Greenland) resolution coupled hindcast (1970-2009) simulation of the Parallel Ocean Program (POP) and a regional 0.08 degree (3-5km around Greenland) resolution coupled HYbrid Coordinate Ocean Model (HYCOM) hindcast (1993-2016) simulation. Both models are coupled to the Los Alamos National Laboratory Community Ice CodE version 4 and forced by atmospheric reanalysis fluxes. In both models we look for processes that could explain the increase in heat; processes that are present in both are likely to be robust causes of warming. |
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$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1009 |
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Author |
Proshutinsky, A.; Krishfield, R.; Toole, J.M.; Timmermans, M.-L.; Williams, W.; Zimmermann, S.; Yamamoto-Kawai, M.; Armitage, T.W.K.; Dukhovskoy, D.; Golubeva, E.; Manucharyan, G.E.; Platov, G.; Watanabe, E.; Kikuchi, T.; Nishino, S.; Itoh, M.; Kang, S.-H.; Cho, K.-H.; Tateyama, K.; Zhao, J. |
Title |
Analysis of the Beaufort Gyre Freshwater Content in 2003-2018 |
Type |
$loc['typeJournal Article'] |
Year |
2019 |
Publication |
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Abbreviated Journal |
J Geophys Res Oceans |
Volume |
124 |
Issue |
12 |
Pages |
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Keywords |
Arctic Ocean; Beaufort Gyre; circulation; climate change; freshwater balance; modeling |
Abstract |
Hydrographic data collected from research cruises, bottom-anchored moorings, drifting Ice-Tethered Profilers, and satellite altimetry in the Beaufort Gyre region of the Arctic Ocean document an increase of more than 6,400 km(3) of liquid freshwater content from 2003 to 2018: a 40% growth relative to the climatology of the 1970s. This fresh water accumulation is shown to result from persistent anticyclonic atmospheric wind forcing (1997-2018) accompanied by sea ice melt, a wind-forced redirection of Mackenzie River discharge from predominantly eastward to westward flow, and a contribution of low salinity waters of Pacific Ocean origin via Bering Strait. Despite significant uncertainties in the different observations, this study has demonstrated the synergistic value of having multiple diverse datasets to obtain a more comprehensive understanding of Beaufort Gyre freshwater content variability. For example, Beaufort Gyre Observational System (BGOS) surveys clearly show the interannual increase in freshwater content, but without satellite or Ice-Tethered Profiler measurements, it is not possible to resolve the seasonal cycle of freshwater content, which in fact is larger than the year-to-year variability, or the more subtle interannual variations. |
Address |
Physical Oceanography Laboratory Ocean University of China, Qingdao China |
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Place of Publication |
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Language |
English |
Summary Language |
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Series Editor |
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Edition |
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ISSN |
2169-9275 |
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Funding |
strtoupper('3').strtolower('2055432'); strtoupper('P').strtolower('MC7003849') |
Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1097 |
Permanent link to this record |
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Author |
Proshutinsky, A.; Krishfield, R.; Toole, J.M.; Timmermans, M.-L.; Williams, W.; Zimmermann, S.; Yamamoto-Kawai, M.; Armitage, T.W.K.; Dukhovskoy, D.; Golubeva, E.; Manucharyan, G.E.; Platov, G.; Watanabe, E.; Kikuchi, T.; Nishino, S.; Itoh, M.; Kang, S.-H.; Cho, K.-H.; Tateyama, K.; Zhao, J. |
Title |
Analysis of the Beaufort Gyre Freshwater Content in 2003-2018 |
Type |
$loc['typeJournal Article'] |
Year |
2019 |
Publication |
|
Abbreviated Journal |
J Geophys Res Oceans |
Volume |
124 |
Issue |
12 |
Pages |
9658-9689 |
Keywords |
Arctic Ocean; Beaufort Gyre; circulation; climate change; freshwater balance; modeling |
Abstract |
Hydrographic data collected from research cruises, bottom-anchored moorings, drifting Ice-Tethered Profilers, and satellite altimetry in the Beaufort Gyre region of the Arctic Ocean document an increase of more than 6,400 km(3) of liquid freshwater content from 2003 to 2018: a 40% growth relative to the climatology of the 1970s. This fresh water accumulation is shown to result from persistent anticyclonic atmospheric wind forcing (1997-2018) accompanied by sea ice melt, a wind-forced redirection of Mackenzie River discharge from predominantly eastward to westward flow, and a contribution of low salinity waters of Pacific Ocean origin via Bering Strait. Despite significant uncertainties in the different observations, this study has demonstrated the synergistic value of having multiple diverse datasets to obtain a more comprehensive understanding of Beaufort Gyre freshwater content variability. For example, Beaufort Gyre Observational System (BGOS) surveys clearly show the interannual increase in freshwater content, but without satellite or Ice-Tethered Profiler measurements, it is not possible to resolve the seasonal cycle of freshwater content, which in fact is larger than the year-to-year variability, or the more subtle interannual variations. |
Address |
Physical Oceanography Laboratory Ocean University of China, Qingdao China |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Edition |
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ISSN |
2169-9275 |
ISBN |
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Funding |
strtoupper('3').strtolower('2055432'); strtoupper('P').strtolower('MC7003849') |
Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1102 |
Permanent link to this record |