Estimation of Arctic glacier motion with satellite L-band SAR data
Offset fields between pairs of JERS-1 satellite SAR data acquired in winter with 44 days time interval were employed for the estimation of Arctic glacier motion over Svalbard, Novaya Zemlya and Franz-Josef Land. The displacement maps show that the ice caps are divided into a number of clearly define...
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ftutoulouse3hal:oai:HAL:hal-00402165v1 2024-09-15T18:07:06+00:00 Estimation of Arctic glacier motion with satellite L-band SAR data Strozzi, T. Kouraev, A. Wiesmann, A. Wegmuller, U. Sharov, A. Werner, C. Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/hal-00402165 en eng HAL CCSD Elsevier hal-00402165 https://hal.science/hal-00402165 ISSN: 0034-4257 EISSN: 1879-0704 Remote Sensing of Environment https://hal.science/hal-00402165 Remote Sensing of Environment, 2008, 112 (3), pp.636-645 info:eu-repo/semantics/article Journal articles 2008 ftutoulouse3hal 2024-06-25T00:07:14Z Offset fields between pairs of JERS-1 satellite SAR data acquired in winter with 44 days time interval were employed for the estimation of Arctic glacier motion over Svalbard, Novaya Zemlya and Franz-Josef Land. The displacement maps show that the ice caps are divided into a number of clearly defined fast-flowing units with displacement larger than about 6 in in 44 days (i.e. 50 m/year). The estimated error of the JERS-1 offset tracking derived displacement is on the order of 20 m/year. Occasionally, azimuth streaks related to auroral zone ionospheric disturbances were detected and dedicated processing steps were applied to minimize their influence on the estimated motion pattern. Our analysis demonstrated that offset tracking of L-band SAR images is a robust and direct estimation technique of glacier motion. The method is particularly useful when differential SAR interferometry is limited by loss of coherence, i.e. for rapid and incoherent flow and large acquisition time intervals between the two SAR images. The JERS-1 results, obtained using SAR data acquired by a satellite operated until 1998, raise expectations of L-band SAR data from the ALOS satellite launched in early 2006. (C) 2007 Elsevier Inc. All rights reserved. Article in Journal/Newspaper Franz Josef Land glacier Novaya Zemlya Svalbard Université Toulouse III - Paul Sabatier: HAL-UPS |
institution |
Open Polar |
collection |
Université Toulouse III - Paul Sabatier: HAL-UPS |
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ftutoulouse3hal |
language |
English |
description |
Offset fields between pairs of JERS-1 satellite SAR data acquired in winter with 44 days time interval were employed for the estimation of Arctic glacier motion over Svalbard, Novaya Zemlya and Franz-Josef Land. The displacement maps show that the ice caps are divided into a number of clearly defined fast-flowing units with displacement larger than about 6 in in 44 days (i.e. 50 m/year). The estimated error of the JERS-1 offset tracking derived displacement is on the order of 20 m/year. Occasionally, azimuth streaks related to auroral zone ionospheric disturbances were detected and dedicated processing steps were applied to minimize their influence on the estimated motion pattern. Our analysis demonstrated that offset tracking of L-band SAR images is a robust and direct estimation technique of glacier motion. The method is particularly useful when differential SAR interferometry is limited by loss of coherence, i.e. for rapid and incoherent flow and large acquisition time intervals between the two SAR images. The JERS-1 results, obtained using SAR data acquired by a satellite operated until 1998, raise expectations of L-band SAR data from the ALOS satellite launched in early 2006. (C) 2007 Elsevier Inc. All rights reserved. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Strozzi, T. Kouraev, A. Wiesmann, A. Wegmuller, U. Sharov, A. Werner, C. |
spellingShingle |
Strozzi, T. Kouraev, A. Wiesmann, A. Wegmuller, U. Sharov, A. Werner, C. Estimation of Arctic glacier motion with satellite L-band SAR data |
author_facet |
Strozzi, T. Kouraev, A. Wiesmann, A. Wegmuller, U. Sharov, A. Werner, C. |
author_sort |
Strozzi, T. |
title |
Estimation of Arctic glacier motion with satellite L-band SAR data |
title_short |
Estimation of Arctic glacier motion with satellite L-band SAR data |
title_full |
Estimation of Arctic glacier motion with satellite L-band SAR data |
title_fullStr |
Estimation of Arctic glacier motion with satellite L-band SAR data |
title_full_unstemmed |
Estimation of Arctic glacier motion with satellite L-band SAR data |
title_sort |
estimation of arctic glacier motion with satellite l-band sar data |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00402165 |
genre |
Franz Josef Land glacier Novaya Zemlya Svalbard |
genre_facet |
Franz Josef Land glacier Novaya Zemlya Svalbard |
op_source |
ISSN: 0034-4257 EISSN: 1879-0704 Remote Sensing of Environment https://hal.science/hal-00402165 Remote Sensing of Environment, 2008, 112 (3), pp.636-645 |
op_relation |
hal-00402165 https://hal.science/hal-00402165 |
_version_ |
1810444475935227904 |