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Title: Brief Communication: Mesoscale and submesoscale dynamics in the marginal ice zone from sequential synthetic aperture radar observations
Abstract. New possibilities for horizontal current retrieval inmarginal ice zones (MIZs) from sequential Sentinel-1 synthetic apertureradar (SAR) images are demonstrated. Daily overlapping SAR acquisitionswithin 70–85∘ S/N at time intervals < 1 h enableestimation of high-resolution velocity fields, revealing MIZ dynamics downto submesoscales. An example taken from the Fram Strait MIZ revealsenergetic eddies and filaments with Rossby numbers reaching O(1) magnitudes.The SAR-derived velocity estimations at such high spatial resolution can becritical for monitoring the evolving MIZ dynamics and model validation ofsubmesoscale processes in polar oceans.  more » « less
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Author(s) / Creator(s):
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Date Published:
Journal Name:
The Cryosphere
Page Range / eLocation ID:
2941 to 2947
Medium: X
Sponsoring Org:
National Science Foundation
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