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### Access Dataset and extensive metadata can be accessed and downloaded via: [https://arcticdata.io/data/10.18739/A2CZ32678/](https://arcticdata.io/data/10.18739/A2CZ32678/) ### Overview A limited understanding of how glacier-ocean interactions lead to iceberg calving and melting at the ice-ocean boundary contributes to uncertainty in predictions of sea level rise. Dense packs of icebergs and sea ice, known as ice mélange, occur in many fjords in Greenland and Antarctica. Observations suggest that ice mélange may directly affect iceberg calving by pressing against the glacier front and indirectly affect glacier melting by controlling where and when icebergs melt which can impact ocean circulation and ocean heat transport towards glaciers. However, the interactions between ice mélange, ocean circulation, and iceberg calving have not been systematically investigated due to the difficulty of conducting field work in Greenland fjords. In order to investigate the dynamics of ice mélange (and other floating granular materials) and to inform development of ice mélange models, we conducted a series of laboratory experiments using synthetic icebergs (plastic blocks) that were pushed down a tank by a synthetic glacier. This data set consists of force measurements on the glacier terminus and time-lapse photographs of the experiments that were used for visualizing motion.
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Multibeam sonar data of icebergs from LeConte Glacier, southeast Alaska, June 2022 - July 2023
{"Abstract":["These data include processed multibeam sonar and drone-derived three-dimensional point clouds of icebergs surveyed between 2022 and 2023 in Xeitl Geeyí’ (LeConte Bay), Southeast Alaska. Thirteen grounded icebergs were mapped using Norbit iWBMS and Winghead i77h/i80s sonars, and one recently capsized floating iceberg was mapped using a DJI Air 2S drone. The datasets were collected to quantify submarine iceberg morphology and surface roughness as part of a broader effort to improve understanding of ice–ocean interactions at near-vertical ice-ocean boundaries. The methods and analyses are described in Cohen et al. (submitted in 2025), "Characterizing submarine ice roughness at icebergs from a temperate tidewater glacier", under review in the Journal of Glaciology. All data are georeferenced to World Geodetic System 1984 (WGS 84) and Universal Transverse Mercator Zone 8 N (meters in easting/northing)."]}
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- Award ID(s):
- 2023674
- PAR ID:
- 10660298
- Publisher / Repository:
- NSF Arctic Data Center
- Date Published:
- Subject(s) / Keyword(s):
- Iceberg Multibeam Morphology Fjord Ice-ocean Interactions Ice Roughness
- Format(s):
- Medium: X Other: text/xml
- Sponsoring Org:
- National Science Foundation
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