Effects of atmospheric vorticity on the seasonal hydrographic cycle over the eastern Siberian shelf.

Dmitrenko, Igor A., Kirillov, Sergey A., Tremblay, L. Bruno, Bauch, Dorothea and Makhotin, Mikhail (2008) Effects of atmospheric vorticity on the seasonal hydrographic cycle over the eastern Siberian shelf. Open Access Geophysical Research Letters, 35 (3). L03619. DOI 10.1029/2007GL032739.

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Abstract

The seasonal hydrographic cycle explains about 25–75% of the entire salinity variability spectrum of the Siberian shelf hydrography. Quasi-decadal variations in the seasonal salinity difference over the Laptev and East Siberian sea shelves derived from continuous summer-to-winter historical records from the 1960s–1990s are attributed to atmospheric vorticity quasi-decadal variations. Summer cyclonic vorticity results in riverine water accumulation on the shelf, increasing the salinity summer-to-winter difference. Summer anticyclonic wind pattern enhances fresh water movement from the shelf towards the Arctic Ocean that tends to weaken the seasonal salinity amplitude.

Document Type: Article
Keywords: Siberian shelf hydrography; Laptev Sea, Siberia, Russia; East Siberian seas; Atmospheric vorticity; Hydrographic cycle
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
Refereed: Yes
Open Access Journal?: No
Publisher: AGU (American Geophysical Union)
Projects: Laptev Sea System, Polynya, Otto Schmidt Laboratory
Date Deposited: 08 Dec 2008 12:00
Last Modified: 08 Nov 2017 10:49
URI: https://oceanrep.geomar.de/id/eprint/4043

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