Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6922502 | Computers & Geosciences | 2015 | 30 Pages |
Abstract
Warming ocean currents are considered to be a contributing factor to the retreat of marine-terminating glaciers worldwide, but direct observations near the ice-ocean interface are challenging. We use radar intensity imagery and an iceberg tracking algorithm to produce half-hourly current maps within an imaged portion of Jökulsárlón, a proglacial lagoon in southeastern Iceland. Over our 43.5-h observation period, the lagoon has clockwise circulation with current speeds of order 3-8Â cm/s and occasional strong glacier outflows of up to â¼15Â cm/s. The currents driven by the glacial outflows appear to be dominantly inertial.
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Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Denis Voytenko, Timothy H. Dixon, Mark E. Luther, Chad Lembke, Ian M. Howat, Santiago de la Peña,