Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band
The monitoring of soil freezing and thawing states over large areas is very challenging on ground. In order to investigate the potential and the limitations of space-borne SAR polarimetry at C-band for soil state survey, analyses were conducted on an entire winter time series of fully polarimetric R...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/81908 2023-05-15T18:20:17+02:00 Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band Jagdhuber, Thomas Stockamp, Julia Hajnsek, Irena Ludwig, Ralf 2014-03-05 application/application/pdf https://hdl.handle.net/20.500.11850/81908 https://doi.org/10.3929/ethz-b-000081908 en eng MDPI info:eu-repo/semantics/altIdentifier/doi/10.3390/rs6032008 info:eu-repo/semantics/altIdentifier/wos/000334797000013 http://hdl.handle.net/20.500.11850/81908 doi:10.3929/ethz-b-000081908 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported CC-BY Remote Sensing, 6 (3) Soil freezing Soil thawing SAR polarimetry Polarimetric eigen-based decomposition RADARSAT-2 C-band info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftethz https://doi.org/20.500.11850/81908 https://doi.org/10.3929/ethz-b-000081908 https://doi.org/10.3390/rs6032008 2022-04-25T13:53:53Z The monitoring of soil freezing and thawing states over large areas is very challenging on ground. In order to investigate the potential and the limitations of space-borne SAR polarimetry at C-band for soil state survey, analyses were conducted on an entire winter time series of fully polarimetric RADARSAT-2 data from 2011/2012 to identify freezing as well as thawing states within the soil. The polarimetric data were acquired over the Sodankylä test site in Finland together with in situ measurements of the soil and the snow cover. The analyses indicate clearly that the dynamics of the polarimetric entropy and mean scattering alpha angle are directly correlated to soil freezing and thawing states, even under distinct dry snow cover. First modeling attempts using the Extended Bragg soil scattering model justify the observed trends, which indicate surface-like scattering during frozen soil conditions and multiple/volume scattering for thawed soils. Hence, these first investigations at C-band foster motivation to work towards a robust polarimetric detection of soil freezing and thawing states as well as their transition phase. ISSN:2072-4292 Article in Journal/Newspaper Sodankylä ETH Zürich Research Collection Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
Soil freezing Soil thawing SAR polarimetry Polarimetric eigen-based decomposition RADARSAT-2 C-band |
spellingShingle |
Soil freezing Soil thawing SAR polarimetry Polarimetric eigen-based decomposition RADARSAT-2 C-band Jagdhuber, Thomas Stockamp, Julia Hajnsek, Irena Ludwig, Ralf Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band |
topic_facet |
Soil freezing Soil thawing SAR polarimetry Polarimetric eigen-based decomposition RADARSAT-2 C-band |
description |
The monitoring of soil freezing and thawing states over large areas is very challenging on ground. In order to investigate the potential and the limitations of space-borne SAR polarimetry at C-band for soil state survey, analyses were conducted on an entire winter time series of fully polarimetric RADARSAT-2 data from 2011/2012 to identify freezing as well as thawing states within the soil. The polarimetric data were acquired over the Sodankylä test site in Finland together with in situ measurements of the soil and the snow cover. The analyses indicate clearly that the dynamics of the polarimetric entropy and mean scattering alpha angle are directly correlated to soil freezing and thawing states, even under distinct dry snow cover. First modeling attempts using the Extended Bragg soil scattering model justify the observed trends, which indicate surface-like scattering during frozen soil conditions and multiple/volume scattering for thawed soils. Hence, these first investigations at C-band foster motivation to work towards a robust polarimetric detection of soil freezing and thawing states as well as their transition phase. ISSN:2072-4292 |
format |
Article in Journal/Newspaper |
author |
Jagdhuber, Thomas Stockamp, Julia Hajnsek, Irena Ludwig, Ralf |
author_facet |
Jagdhuber, Thomas Stockamp, Julia Hajnsek, Irena Ludwig, Ralf |
author_sort |
Jagdhuber, Thomas |
title |
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band |
title_short |
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band |
title_full |
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band |
title_fullStr |
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band |
title_full_unstemmed |
Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band |
title_sort |
identification of soil freezing and thawing states using sar polarimetry at c-band |
publisher |
MDPI |
publishDate |
2014 |
url |
https://hdl.handle.net/20.500.11850/81908 https://doi.org/10.3929/ethz-b-000081908 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_source |
Remote Sensing, 6 (3) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3390/rs6032008 info:eu-repo/semantics/altIdentifier/wos/000334797000013 http://hdl.handle.net/20.500.11850/81908 doi:10.3929/ethz-b-000081908 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/81908 https://doi.org/10.3929/ethz-b-000081908 https://doi.org/10.3390/rs6032008 |
_version_ |
1766197789486743552 |