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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Online Access: | https://doi.org/10.3390/rs6032008 https://doaj.org/article/201023a9644b4c9e82f28f78cc6a30a9 |
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ftdoajarticles:oai:doaj.org/article:201023a9644b4c9e82f28f78cc6a30a9 2023-05-15T18:20:17+02:00 Identification of Soil Freezing and Thawing States Using SAR Polarimetry at C-Band Thomas Jagdhuber Julia Stockamp Irena Hajnsek Ralf Ludwig 2014-03-01T00:00:00Z https://doi.org/10.3390/rs6032008 https://doaj.org/article/201023a9644b4c9e82f28f78cc6a30a9 EN eng MDPI AG http://www.mdpi.com/2072-4292/6/3/2008 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs6032008 https://doaj.org/article/201023a9644b4c9e82f28f78cc6a30a9 Remote Sensing, Vol 6, Iss 3, Pp 2008-2023 (2014) soil freezing soil thawing SAR polarimetry polarimetric eigen-based decomposition RADARSAT-2 C-band Science Q article 2014 ftdoajarticles https://doi.org/10.3390/rs6032008 2022-12-31T16:18:23Z 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. Article in Journal/Newspaper Sodankylä Directory of Open Access Journals: DOAJ Articles Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Remote Sensing 6 3 2008 2023 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
soil freezing soil thawing SAR polarimetry polarimetric eigen-based decomposition RADARSAT-2 C-band Science Q |
spellingShingle |
soil freezing soil thawing SAR polarimetry polarimetric eigen-based decomposition RADARSAT-2 C-band Science Q Thomas Jagdhuber Julia Stockamp Irena Hajnsek Ralf Ludwig 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 Science Q |
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. |
format |
Article in Journal/Newspaper |
author |
Thomas Jagdhuber Julia Stockamp Irena Hajnsek Ralf Ludwig |
author_facet |
Thomas Jagdhuber Julia Stockamp Irena Hajnsek Ralf Ludwig |
author_sort |
Thomas Jagdhuber |
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 AG |
publishDate |
2014 |
url |
https://doi.org/10.3390/rs6032008 https://doaj.org/article/201023a9644b4c9e82f28f78cc6a30a9 |
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, Vol 6, Iss 3, Pp 2008-2023 (2014) |
op_relation |
http://www.mdpi.com/2072-4292/6/3/2008 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs6032008 https://doaj.org/article/201023a9644b4c9e82f28f78cc6a30a9 |
op_doi |
https://doi.org/10.3390/rs6032008 |
container_title |
Remote Sensing |
container_volume |
6 |
container_issue |
3 |
container_start_page |
2008 |
op_container_end_page |
2023 |
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1766197785678315520 |