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Title: Sea Ice Detection Using GNSS-R Data From TechDemoSat-1

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.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of Southampton (United Kingdom)
  2. National Oceanography Centre, Liverpool (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1577553
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Oceans
Additional Journal Information:
[ Journal Volume: 124; Journal Issue: 8]; Journal ID: ISSN 2169-9275
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Oceanography; Global Navigation Satellite Systems Reflectometry (GNSS‐R); sea ice; sea ice detection; delay‐Doppler map; TechDemoSat‐1; remote sensing

Citation Formats

Cartwright, Jessica, Banks, Christopher J., and Srokosz, Meric. Sea Ice Detection Using GNSS-R Data From TechDemoSat-1. United States: N. p., 2019. Web. doi:10.1029/2019jc015327.
Cartwright, Jessica, Banks, Christopher J., & Srokosz, Meric. Sea Ice Detection Using GNSS-R Data From TechDemoSat-1. United States. doi:10.1029/2019jc015327.
Cartwright, Jessica, Banks, Christopher J., and Srokosz, Meric. Wed . "Sea Ice Detection Using GNSS-R Data From TechDemoSat-1". United States. doi:10.1029/2019jc015327. https://www.osti.gov/servlets/purl/1577553.
@article{osti_1577553,
title = {Sea Ice Detection Using GNSS-R Data From TechDemoSat-1},
author = {Cartwright, Jessica and Banks, Christopher J. and Srokosz, Meric},
abstractNote = {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.},
doi = {10.1029/2019jc015327},
journal = {Journal of Geophysical Research. Oceans},
number = [8],
volume = [124],
place = {United States},
year = {2019},
month = {7}
}

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