Observations of Inertial Currents in a Lagoon in Southeastern Iceland using Terrestrial Radar Interferometry and Automated Iceberg Tracking
Terrestrial radar interferometry, Iceberg tracking, Inertial currents
Digital Object Identifier (DOI)
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 3–8 cm/s and occasional strong glacier outflows of up to ∼15 cm/s. The currents driven by the glacial outflows appear to be dominantly inertial.
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Citation / Publisher Attribution
Computers & Geosciences, v. 82, p. 23-30
Scholar Commons Citation
Voytenko, Denis; Dixon, Timothy H.; Luther, Mark E.; Lembke, Chad; Howat, Ian M.; and de la Pena, Santiago, "Observations of Inertial Currents in a Lagoon in Southeastern Iceland using Terrestrial Radar Interferometry and Automated Iceberg Tracking" (2015). School of Geosciences Faculty and Staff Publications. 1535.