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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/tc-2019-59
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-2019-59
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 09 Apr 2019

Research article | 09 Apr 2019

Review status
This discussion paper is a preprint. A revision of this manuscript was accepted for the journal The Cryosphere (TC) and is expected to appear here in due course.

Iceberg topography and volume classification using TanDEM-X interferometry

Dyre O. Dammann1,2, Leif E. B. Eriksson1, Son V. Nghiem3, Erin Pettit4, Nathan T. Kurtz5, John G. Sonntag5, Thomas Busche6, Franz J. Meyer7, and Andrew R. Mahoney7 Dyre O. Dammann et al.
  • 1Department of Space, Earth, and Environment, Chalmers University of Technology, Gothenburg, Sweden
  • 2StormGeo, Bergen, Norway
  • 3Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
  • 4College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, USA
  • 5National Aeronautics and Space Administration Goddard Space Flight Center, Greenbelt, MD, USA
  • 6German Aerospace Center, Microwaves and Radar Institute, Oberpfaffenhofen, Germany
  • 7Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA

Abstract. Icebergs in polar regions affect water salinity, alter marine habitats, and impose serious hazards on maritime operations and navigation. These impacts mainly depend on the iceberg volume, which remain an elusive parameter to measure. We investigate the capability of TanDEM-X bistatic single-pass synthetic aperture radar interferometry (InSAR) to derive iceberg subaerial morphology and infer total volume. We cross-verify InSAR results with Operation IceBridge (OIB) data acquired near Wordie Bay, Antarctica, as part of the OIB/TanDEM-X Antarctic Science Campaign (OTASC). While icebergs are typically classified according to size based on length or maximum height, we develop a new volumetric classification approach for applications where iceberg volume is relevant. For icebergs with heights exceeding 5 m, we find iceberg volumes derived from TanDEM-X and OIB data match within 7 %. These results suggest that TanDEM-X could pave the way for future single-pass interferometric systems for scientific and operational iceberg mapping and classification.

Dyre O. Dammann et al.
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Dyre O. Dammann et al.
Dyre O. Dammann et al.
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Latest update: 24 Jun 2019
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Short summary
We validate TanDEM-X interferometry as a tool to derive iceberg subaerial morphology using Operation IceBridge data. This approach enables a volumetric classification of icebergs according to volume relevant to iceberg drift and decay, freshwater contribution and potential impact on structures. We find iceberg volumes to match generally within 7 %. These results suggest that TanDEM-X could pave the way for future interferometric systems for scientific and operational iceberg classification.
We validate TanDEM-X interferometry as a tool to derive iceberg subaerial morphology using...
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