Sea ice draft in the Weddell Sea, measured by upward looking sonars


Contact
Axel.Behrendt [ at ] awi.de

Abstract

<jats:p>Abstract. The presented database contains time-referenced sea ice draft values from upward looking sonar (ULS) measurements in the Weddell Sea, Antarctica. The sea ice draft data can be used to infer the thickness of the ice. They were collected during the period 1990–2008. In total, the database includes measurements from 13 locations in the Weddell Sea and was generated from more than 3.7 million measurements of sea ice draft. The files contain uncorrected raw drafts, corrected drafts and the basic parameters measured by the ULS. The measurement principle, the data processing procedure and the quality control are described in detail. To account for the unknown speed of sound in the water column above the ULS, two correction methods were applied to the draft data. The first method is based on defining a reference level from the identification of open water leads. The second method uses a model of sound speed in the oceanic mixed layer and is applied to ice draft in austral winter. Both methods are discussed and their accuracy is estimated. Finally, selected results of the processing are presented. The data can be downloaded from doi:10.1594/PANGAEA.785565. </jats:p>



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Publication Status
Published
Eprint ID
33255
DOI https://www.doi.org/10.5194/essd-5-209-2013

Cite as
Behrendt, A. , Dierking, W. , Fahrbach, E. and Witte, H. (2013): Sea ice draft in the Weddell Sea, measured by upward looking sonars , Earth System Science Data, 5 (1), pp. 209-226 . doi: https://www.doi.org/10.5194/essd-5-209-2013


Download
[thumbnail of essd-5-209-2013.pdf]
Preview
PDF
essd-5-209-2013.pdf

Download (5MB) | Preview
Cite this document as:

Share


Citation

Research Platforms

Campaigns
ANT > X > 4
ANT > XIII > 4
ANT > XV > 4
ANT > XVIII > 3
ANT > XX > 2
ANT > XXII > 3
ANT > XXIV > 3


Actions
Edit Item Edit Item