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Sea ice detection using GNSS‐R data from TechDemoSat‐1

Sea ice detection using GNSS‐R data from TechDemoSat‐1
Sea ice detection using GNSS‐R data from TechDemoSat‐1
A new method for the detection of sea ice using GNSS‐R (Global Navigation Satellite Systems Reflectometry) is presented and applied to 33 months of data from the U.K. TechDemoSat‐1 mission. This method of sea ice detection shows the potential for a future GNSS‐R polar mission, attaining an agreement of over 98% and 96% in the Antarctic and Arctic, respectively, when compared to the European Space Agency's Climate Change Initiative sea ice concentration product. The algorithm uses a combination of two parameters derived from the delay‐Doppler Maps to quantify the spread of power in delay and Doppler. Application of thresholds then allows sea ice to be distinguished from open water. Differences between the TechDemoSat‐1 sea ice detection and comparison data sets are explored. The results provide information on the seasonal and multiyear changes in sea ice distribution of the Arctic and Antarctic. Future potential and applications of this technique are discussed.
2169-9275
5801-5810
Cartwright, Jessica
8a249815-a421-41ad-b13a-eb48c97ee95d
Banks, Christopher J.
5d65ec1e-ed5f-48fc-9b05-3e46f24c35dc
Srokosz, Meric
1e0442ce-679f-43f2-8fe4-9a0f0174d483
Cartwright, Jessica
8a249815-a421-41ad-b13a-eb48c97ee95d
Banks, Christopher J.
5d65ec1e-ed5f-48fc-9b05-3e46f24c35dc
Srokosz, Meric
1e0442ce-679f-43f2-8fe4-9a0f0174d483

Cartwright, Jessica, Banks, Christopher J. and Srokosz, Meric (2019) Sea ice detection using GNSS‐R data from TechDemoSat‐1. Journal of Geophysical Research: Oceans, 124 (8), 5801-5810. (doi:10.1029/2019JC015327).

Record type: Article

Abstract

A new method for the detection of sea ice using GNSS‐R (Global Navigation Satellite Systems Reflectometry) is presented and applied to 33 months of data from the U.K. TechDemoSat‐1 mission. This method of sea ice detection shows the potential for a future GNSS‐R polar mission, attaining an agreement of over 98% and 96% in the Antarctic and Arctic, respectively, when compared to the European Space Agency's Climate Change Initiative sea ice concentration product. The algorithm uses a combination of two parameters derived from the delay‐Doppler Maps to quantify the spread of power in delay and Doppler. Application of thresholds then allows sea ice to be distinguished from open water. Differences between the TechDemoSat‐1 sea ice detection and comparison data sets are explored. The results provide information on the seasonal and multiyear changes in sea ice distribution of the Arctic and Antarctic. Future potential and applications of this technique are discussed.

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Accepted/In Press date: 31 July 2019
Published date: 23 September 2019

Identifiers

Local EPrints ID: 434539
URI: https://eprints.soton.ac.uk/id/eprint/434539
ISSN: 2169-9275
PURE UUID: ef5f779d-4f7d-4be1-bdca-8fdf18903da3

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Date deposited: 01 Oct 2019 16:30
Last modified: 02 Dec 2019 17:31

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