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Observations of supercooling and frazil ice formation in the Laptev Sea coastal polynya

Dmitrenko, Igor A. and Wegner, Carolyn and Kassens, Heidemarie and Kirillov, Sergey A. and Krumpen, Thomas and Heinemann, Günther and Helbig, Alfred and Schröder, David and Hölemann, Jens A. and Klagge, Torben and Tyshko, Konstantin P. and Busche, Thomas (2010) Observations of supercooling and frazil ice formation in the Laptev Sea coastal polynya. Journal of Geophysical Research, 115 (C05015), pp. 1-9. American Geophysical Union. DOI: 10.1029/2009JC005798.

Full text not available from this repository.

Official URL: http://www.agu.org/journals/jc/jc1005/2009JC005798/

Abstract

This paper examines a hydrographic response to the wind-driven coastal polynya activity over the southeastern Laptev Sea shelf for April–May 2008, using a combination of Environmental Satellite (Envisat) advanced synthetic aperture radar (ASAR) and TerraSAR-X satellite imagery, aerial photography, meteorological data, and SBE-37 salinity-temperature-depth and acoustic Doppler current profiler land-fast ice edge-moored instruments. When ASAR observed the strongest end-of-April polynya event with frazil ice formation, the moored instruments showed maximal acoustical scattering within the surface mixed layer, and the seawater temperatures were either at or 0.02°C below freezing. We also find evidence of the persistent horizontal temperature and salinity gradients across the fast ice edge to have the signature of geostrophic flow adjustment as predicted by polynya models.

Document Type:Article
Title:Observations of supercooling and frazil ice formation in the Laptev Sea coastal polynya
Authors:
AuthorsInstitution or Email of Authors
Dmitrenko, Igor A. Leibniz Institute of Marine Sciences at University of Kiel (IFM-GEOMAR), Kiel, Germany
Wegner, CarolynLeibniz Institute of Marine Sciences at University of Kiel (IFM-GEOMAR), Kiel, Germany
Kassens, Heidemarie Leibniz Institute of Marine Sciences at University of Kiel (IFM-GEOMAR), Kiel, Germany
Kirillov, Sergey A. Arctic and Antarctic Research Institute, St. Petersburg, Russia
Krumpen, Thomas Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
Heinemann, Günther Department of Environmental Meteorology, University of Trier, Trier, Germany
Helbig, AlfredDepartment of Environmental Meteorology, University of Trier, Trier, Germany
Schröder, DavidDepartment of Environmental Meteorology, University of Trier, Trier, Germany
Hölemann, Jens A. Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
Klagge, Torben Leibniz Institute of Marine Sciences at University of Kiel (IFM-GEOMAR), Kiel, Germany
Tyshko, Konstantin P. Arctic and Antarctic Research Institute, St. Petersburg, Russia
Busche, ThomasGerman Aerospace Center, Microwaves and Radar Institute, Oberpfaffenhofen-Wessling, Germany
Date:19 May 2010
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:115
DOI:10.1029/2009JC005798
Page Range:pp. 1-9
Editors:
EditorsEmail
Bryan, Frank O. Oceanography Section, Climate and Global Dynamics Division NCAR, jgro@cgd.ucar.edu
Publisher:American Geophysical Union
Series Name:Oceans
Status:Published
Keywords:coastal polynya, supercooling, frazil ice
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt TerraSAR-X Kalibration und Projektunterstützung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Thomas Edmund Busche
Deposited On:15 Jun 2010 16:41
Last Modified:23 Jan 2014 11:36

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