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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/tc-2020-223
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-2020-223
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  04 Sep 2020

04 Sep 2020

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This preprint is currently under review for the journal TC.

Brief Communication: Ice Sheet Elevation Measurements from the Sentinel-3A / 3B Tandem Phase

Malcolm McMillan1, Alan Muir2, and Craig Donlon3 Malcolm McMillan et al.
  • 1UK Centre for Polar Observation & Modelling, Centre for Excellence in Environmental Data Science, Lancaster University, Lancaster, LA1 4YW, UK
  • 2University College London, Gower Street, London, WC1E 6BT, UK
  • 3European Space Agency, European Space Research and Technology Centre (ESA ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, the Netherlands

Abstract. Over the coming decade, the quartet of Sentinel-3 satellite altimeters will provide a continuous record of ice sheet elevation change. To ensure consistency of measurement between each of the four satellites, requires rigorous in-flight inter-comparison. To facilitate this, Sentinel-3B was initially flown in a unique tandem formation with Sentinel-3A, enabling near-instantaneous, co-located measurements to be acquired. Here, we analyse tandem measurements of ice sheet elevation, to show that both instruments operate with statistically equivalent accuracy and precision, even over complex ice margin terrain. This analysis demonstrates that both satellites can be used interchangeably to study ice sheet evolution.

Malcolm McMillan et al.

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Malcolm McMillan et al.

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