File:A diver descends beneath sea ice (50645757993).jpg

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A_diver_descends_beneath_sea_ice_(50645757993).jpg (640 × 499 pixels, file size: 19 KB, MIME type: image/jpeg)

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As part of the 1972 Arctic Ice Dynamics Joint Experiment (AIDJEX) Project, the University of Washington boundary-layer studies used divers to assemble current-meter masts under the water and to map under-ice topography.

In the AIDJEX pilot study, scientists collected meteorological and oceanographic data from instruments located at the camps and on floating data buoys. The experiment was designed to collect coordinated measurements over at least one year, in order to have the right combination of data for understanding atmosphere and ice interactions. The submarine USS Gurnard participated by collecting ice draft data from upward-looking acoustical soundings (sonar). Ice draft (the depth of the ice below the water surface) is an estimator of ice thickness.

The AIDJEX project was the first major western sea ice experiment constructed specifically to answer emerging questions about how sea ice moves and changes in response to the influence of ocean and atmosphere. The pilot study in 1972 was followed by the AIDJEX field program in 1975 and 1976.

Credit: National Snow & Ice Data Center
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Source A diver descends beneath sea ice
Author National Snow and Ice Data Center from Boulder, United States

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by NSIDC at https://flickr.com/photos/189007038@N05/50645757993. It was reviewed on 5 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

5 December 2020

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current17:46, 5 December 2020Thumbnail for version as of 17:46, 5 December 2020640 × 499 (19 KB)Eyes Roger (talk | contribs)Transferred from Flickr via #flickr2commons

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