Articles | Volume 14, issue 6
https://doi.org/10.5194/os-14-1349-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-14-1349-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Nov 2018
Research article |
| 02 Nov 2018
| 02 Nov 2018
Heat, salt, and volume transports in the eastern Eurasian Basin of the Arctic Ocean from 2 years of mooring observations
Andrey V. Pnyushkov
CORRESPONDING AUTHOR
International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA
Igor V. Polyakov
International Arctic Research Center and College of Natural Science and Mathematics, University of Alaska Fairbanks, Fairbanks, AK, USA
Robert Rember
International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA
Vladimir V. Ivanov
Arctic and Antarctic Research Institute, St. Petersburg, Russia
Moscow State University, Geography department, Moscow, Russia
Matthew B. Alkire
Applied Physics Laboratory, University of Washington, Seattle, WA, USA
Igor M. Ashik
Arctic and Antarctic Research Institute, St. Petersburg, Russia
Till M. Baumann
International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA
Genrikh V. Alekseev
Arctic and Antarctic Research Institute, St. Petersburg, Russia
Arild Sundfjord
Norwegian Polar Institute, Fram Centre, Tromsø, Norway
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A total of 4 years of velocity and hydrography records from moored profilers over the Laptev Sea slope reveal multiple events of eddies passing through the mooring site. These events suggest that the advection of mesoscale eddies is an important component of ocean dynamics in the Eurasian Basin of the Arctic Ocean. Increased vertical shear of current velocities found within eddies produces enhanced diapycnal mixing, suggesting their importance for the redistribution of heat in the Arctic Ocean.
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H. Jakob Belter, Thomas Krumpen, Luisa von Albedyll, Tatiana A. Alekseeva, Gerit Birnbaum, Sergei V. Frolov, Stefan Hendricks, Andreas Herber, Igor Polyakov, Ian Raphael, Robert Ricker, Sergei S. Serovetnikov, Melinda Webster, and Christian Haas
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A total of 4 years of velocity and hydrography records from moored profilers over the Laptev Sea slope reveal multiple events of eddies passing through the mooring site. These events suggest that the advection of mesoscale eddies is an important component of ocean dynamics in the Eurasian Basin of the Arctic Ocean. Increased vertical shear of current velocities found within eddies produces enhanced diapycnal mixing, suggesting their importance for the redistribution of heat in the Arctic Ocean.
Achim Randelhoff and Arild Sundfjord
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The future of Arctic marine ecosystems has received increasing attention in recent years as the extent of the sea ice cover is dwindling. Regional differences in the hydrography, bathymetry and atmospheric forcing of nutrient fluxes essential for phytoplankton growth mean that wind-driven mixing, advection and upwelling will influence the polar ecosystem in differing magnitudes in different regions of the Arctic Ocean, with particular effects likely being restricted to very specific areas.
Matthew B. Alkire, Igor Polyakov, Robert Rember, Andrey Pnyushkov, Vladimir Ivanov, and Igor Ashik
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High-resolution measurements of temperature, salinity, and the stable oxygen isotope ratio of seawater were collected along the slopes of the Barents, Kara, and Laptev seas during late summer of 2013 and 2015. Two separate mixing regimes were identified that describe the initial and final stages of halocline water formation. The linear regressions defining the mixing regimes appear to be stable despite the dramatic environmental changes observed over the Arctic Ocean over the past two decades.
I. A. Dmitrenko, S. A. Kirillov, N. Serra, N. V. Koldunov, V. V. Ivanov, U. Schauer, I. V. Polyakov, D. Barber, M. Janout, V. S. Lien, M. Makhotin, and Y. Aksenov
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D. Bauch, S. Torres-Valdes, I. Polyakov, A. Novikhin, I. Dmitrenko, J. McKay, and A. Mix
Ocean Sci., 10, 141–154, https://doi.org/10.5194/os-10-141-2014, https://doi.org/10.5194/os-10-141-2014, 2014
Related subject area
Approach: In situ Observations | Depth range: Deep Ocean | Geographical range: Deep Seas: Arctic Ocean | Phenomena: Current Field
Structure and dynamics of mesoscale eddies over the Laptev Sea continental slope in the Arctic Ocean
Andrey Pnyushkov, Igor V. Polyakov, Laurie Padman, and An T. Nguyen
Ocean Sci., 14, 1329–1347, https://doi.org/10.5194/os-14-1329-2018, https://doi.org/10.5194/os-14-1329-2018, 2018
Short summary
Short summary
A total of 4 years of velocity and hydrography records from moored profilers over the Laptev Sea slope reveal multiple events of eddies passing through the mooring site. These events suggest that the advection of mesoscale eddies is an important component of ocean dynamics in the Eurasian Basin of the Arctic Ocean. Increased vertical shear of current velocities found within eddies produces enhanced diapycnal mixing, suggesting their importance for the redistribution of heat in the Arctic Ocean.
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Short summary
This study describes along-slope volume, heat, and salt transports derived from observations collected between 2013 and 2015 in the eastern Eurasian Basin of the Arctic Ocean using a cross-slope array of six moorings. Inferred transport estimates may have wide implications and should be considered when assessing high-latitude ocean dynamics.
This study describes along-slope volume, heat, and salt transports derived from observations...
