Extinction estimation over land ice using long-wavelength Pol-InSAR
In recent years there has been increased interest in using SAR to study and monitor glaciers and ice sheets for glaciological and climate change research. This paper describes for the first time the estimation of ice extinction through the modelling of Pol-InSAR coherences as a combination of a surf...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.496.6618 2023-05-15T15:33:56+02:00 Extinction estimation over land ice using long-wavelength Pol-InSAR Jayanti J. Sharma Irena Hajnsek Konstantinos P. Papathanassiou The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.496.6618 http://elib.dlr.de/54801/1/jsharma_eusar2008_final.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.496.6618 http://elib.dlr.de/54801/1/jsharma_eusar2008_final.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://elib.dlr.de/54801/1/jsharma_eusar2008_final.pdf text ftciteseerx 2016-01-08T08:48:37Z In recent years there has been increased interest in using SAR to study and monitor glaciers and ice sheets for glaciological and climate change research. This paper describes for the first time the estimation of ice extinction through the modelling of Pol-InSAR coherences as a combination of a surface contribution from the snow-ice interface and a volume response. Separation of the ground and volume contributions is obtained through decomposition of the polarimetric coherency ma-trix. Both model-based Freeman 2- and 3-component and eigenvector decompositions are examined. Ground-to-volume scattering ratios derived from polarimetry are used in conjunction with Pol-InSAR interferometric coherences to invert the extinction of the ice layer. Validation is performed with airborne Pol-InSAR data at L- and P-band collected using DLR’s E-SAR system over the Austfonna ice cap in Svalbard, Norway as part of the ICESAR campaign. 1 Text Austfonna Ice cap Svalbard Unknown Austfonna ENVELOPE(24.559,24.559,79.835,79.835) Norway Svalbard |
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Open Polar |
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ftciteseerx |
language |
English |
description |
In recent years there has been increased interest in using SAR to study and monitor glaciers and ice sheets for glaciological and climate change research. This paper describes for the first time the estimation of ice extinction through the modelling of Pol-InSAR coherences as a combination of a surface contribution from the snow-ice interface and a volume response. Separation of the ground and volume contributions is obtained through decomposition of the polarimetric coherency ma-trix. Both model-based Freeman 2- and 3-component and eigenvector decompositions are examined. Ground-to-volume scattering ratios derived from polarimetry are used in conjunction with Pol-InSAR interferometric coherences to invert the extinction of the ice layer. Validation is performed with airborne Pol-InSAR data at L- and P-band collected using DLR’s E-SAR system over the Austfonna ice cap in Svalbard, Norway as part of the ICESAR campaign. 1 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jayanti J. Sharma Irena Hajnsek Konstantinos P. Papathanassiou |
spellingShingle |
Jayanti J. Sharma Irena Hajnsek Konstantinos P. Papathanassiou Extinction estimation over land ice using long-wavelength Pol-InSAR |
author_facet |
Jayanti J. Sharma Irena Hajnsek Konstantinos P. Papathanassiou |
author_sort |
Jayanti J. Sharma |
title |
Extinction estimation over land ice using long-wavelength Pol-InSAR |
title_short |
Extinction estimation over land ice using long-wavelength Pol-InSAR |
title_full |
Extinction estimation over land ice using long-wavelength Pol-InSAR |
title_fullStr |
Extinction estimation over land ice using long-wavelength Pol-InSAR |
title_full_unstemmed |
Extinction estimation over land ice using long-wavelength Pol-InSAR |
title_sort |
extinction estimation over land ice using long-wavelength pol-insar |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.496.6618 http://elib.dlr.de/54801/1/jsharma_eusar2008_final.pdf |
long_lat |
ENVELOPE(24.559,24.559,79.835,79.835) |
geographic |
Austfonna Norway Svalbard |
geographic_facet |
Austfonna Norway Svalbard |
genre |
Austfonna Ice cap Svalbard |
genre_facet |
Austfonna Ice cap Svalbard |
op_source |
http://elib.dlr.de/54801/1/jsharma_eusar2008_final.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.496.6618 http://elib.dlr.de/54801/1/jsharma_eusar2008_final.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766364513566720000 |