Reconstruction of summer Barents Sea circulation from climatological data
An estimate of the summer Barents Sea circulation is constructed as a four-dimensional variational inverse of the monthly hydrographic and atmospheric climatologies. The reconstructed evolution of temperature, salinity, and velocity fields provides the best fit to climatological data and satisfies d...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/14476 2023-05-15T15:38:26+02:00 Reconstruction of summer Barents Sea circulation from climatological data Panteleev, G.G. Nechaev, D.A. Ikeda, M. http://hdl.handle.net/2115/14476 eng eng CANADIAN METEOROLOGICAL OCEANOGRAPHIC SOC http://www.cmos.ca/ http://hdl.handle.net/2115/14476 Atomosphere-Ocean, 44(2): 111-132 Copyright(c)Canadian Meteorological and Oceanographic Society Atlantic inflow nordic seas water ocean model parameterization assimilation variability algorithms heat 452 article fthokunivhus 2022-11-18T01:01:17Z An estimate of the summer Barents Sea circulation is constructed as a four-dimensional variational inverse of the monthly hydrographic and atmospheric climatologies. The reconstructed evolution of temperature, salinity, and velocity fields provides the best fit to climatological data and satisfies dynamical and kinematic constraints of a primitive equation ocean circulation model. The data-optimized Barents Sea state is in general agreement with the existing schemes of circulation in the region. The circulation is characterized by the 3.2 Sv inflow from the Norwegian Sea with the Norwegian Atlantic Current. Approximately 1.5 Sv of this inflow recirculates along the northern flank of Bear Island Trough, while the major branch of the current crosses the Barents Sea and outflows through Franz Josef Land-Novaya Zemliya and the Kara Gate straits with transports of 1.1 Sv and 0.6 Sv, respectively. The data assimilation reveals an eastward current between the Great and Central banks and cyclonic circulation in the region between Central Bank and Novaya Zemliya. These two circulation features have recently been confirmed in a number of publications. The reconstructed surface heat and salt fluxes are in qualitative and quantitative agreement with the known observational estimates. The posterior error analysis and sensitivity experiments provide additional arguments in support of the reliability of the data assimilation results. Article in Journal/Newspaper Barents Sea Bear Island Franz Josef Land Nordic Seas Norwegian Sea Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Barents Sea Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Franz Josef Land ENVELOPE(55.000,55.000,81.000,81.000) Norwegian Sea |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Atlantic inflow nordic seas water ocean model parameterization assimilation variability algorithms heat 452 |
spellingShingle |
Atlantic inflow nordic seas water ocean model parameterization assimilation variability algorithms heat 452 Panteleev, G.G. Nechaev, D.A. Ikeda, M. Reconstruction of summer Barents Sea circulation from climatological data |
topic_facet |
Atlantic inflow nordic seas water ocean model parameterization assimilation variability algorithms heat 452 |
description |
An estimate of the summer Barents Sea circulation is constructed as a four-dimensional variational inverse of the monthly hydrographic and atmospheric climatologies. The reconstructed evolution of temperature, salinity, and velocity fields provides the best fit to climatological data and satisfies dynamical and kinematic constraints of a primitive equation ocean circulation model. The data-optimized Barents Sea state is in general agreement with the existing schemes of circulation in the region. The circulation is characterized by the 3.2 Sv inflow from the Norwegian Sea with the Norwegian Atlantic Current. Approximately 1.5 Sv of this inflow recirculates along the northern flank of Bear Island Trough, while the major branch of the current crosses the Barents Sea and outflows through Franz Josef Land-Novaya Zemliya and the Kara Gate straits with transports of 1.1 Sv and 0.6 Sv, respectively. The data assimilation reveals an eastward current between the Great and Central banks and cyclonic circulation in the region between Central Bank and Novaya Zemliya. These two circulation features have recently been confirmed in a number of publications. The reconstructed surface heat and salt fluxes are in qualitative and quantitative agreement with the known observational estimates. The posterior error analysis and sensitivity experiments provide additional arguments in support of the reliability of the data assimilation results. |
format |
Article in Journal/Newspaper |
author |
Panteleev, G.G. Nechaev, D.A. Ikeda, M. |
author_facet |
Panteleev, G.G. Nechaev, D.A. Ikeda, M. |
author_sort |
Panteleev, G.G. |
title |
Reconstruction of summer Barents Sea circulation from climatological data |
title_short |
Reconstruction of summer Barents Sea circulation from climatological data |
title_full |
Reconstruction of summer Barents Sea circulation from climatological data |
title_fullStr |
Reconstruction of summer Barents Sea circulation from climatological data |
title_full_unstemmed |
Reconstruction of summer Barents Sea circulation from climatological data |
title_sort |
reconstruction of summer barents sea circulation from climatological data |
publisher |
CANADIAN METEOROLOGICAL OCEANOGRAPHIC SOC |
url |
http://hdl.handle.net/2115/14476 |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(55.000,55.000,81.000,81.000) |
geographic |
Barents Sea Bear Island Franz Josef Land Norwegian Sea |
geographic_facet |
Barents Sea Bear Island Franz Josef Land Norwegian Sea |
genre |
Barents Sea Bear Island Franz Josef Land Nordic Seas Norwegian Sea |
genre_facet |
Barents Sea Bear Island Franz Josef Land Nordic Seas Norwegian Sea |
op_relation |
http://www.cmos.ca/ http://hdl.handle.net/2115/14476 Atomosphere-Ocean, 44(2): 111-132 |
op_rights |
Copyright(c)Canadian Meteorological and Oceanographic Society |
_version_ |
1766369347103621120 |