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Iceberg topography and volume classification using TanDEM-X interferometry

Dammann, D. O. and Eriksson, L. E. B. and Nghiem, S. V. and Pettit, E. C. and Kurtz, N. T. and Sonntag, J. G. and Busche, T. E. and Meyer, F. J. and Mahoney, A. R. (2019) Iceberg topography and volume classification using TanDEM-X interferometry. The Cryosphere, 13 (7), pp. 1861-1875. Copernicus Publications. DOI: 10.5194/tc-13-1861-2019 ISSN 1994-0416

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Official URL: https://www.the-cryosphere.net/13/1861/2019/

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 remains 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 %. We also derive a range of possible iceberg keel depths relevant to grounding and potential impacts on subsea installations. These results suggest that TanDEM-X could pave the way for future single-pass interferometric systems for scientific and operational iceberg mapping and classification based on iceberg volume and keel depth.

Item URL in elib:https://elib.dlr.de/130894/
Document Type:Article
Title:Iceberg topography and volume classification using TanDEM-X interferometry
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dammann, D. O.UNSPECIFIEDUNSPECIFIED
Eriksson, L. E. B.UNSPECIFIEDUNSPECIFIED
Nghiem, S. V.UNSPECIFIEDUNSPECIFIED
Pettit, E. C.UNSPECIFIEDUNSPECIFIED
Kurtz, N. T.UNSPECIFIEDUNSPECIFIED
Sonntag, J. G.UNSPECIFIEDUNSPECIFIED
Busche, T. E.UNSPECIFIEDUNSPECIFIED
Meyer, F. J.UNSPECIFIEDUNSPECIFIED
Mahoney, A. R.UNSPECIFIEDUNSPECIFIED
Date:10 July 2019
Journal or Publication Title:The Cryosphere
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.5194/tc-13-1861-2019
Page Range:pp. 1861-1875
Publisher:Copernicus Publications
Series Name:Cryosphere
ISSN:1994-0416
Status:Published
Keywords:TanDEM-X, Interferometry, Iceberg topography
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Busche, Thomas Edmund
Deposited On:21 Nov 2019 10:28
Last Modified:10 Dec 2019 10:35

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