Temporal Monitoring of the Soil Freeze-Thaw Cycles over a Snow-Covered Surface by Using Air-Launched Ground-Penetrating Radar

Handle URI:
http://hdl.handle.net/10754/578845
Title:
Temporal Monitoring of the Soil Freeze-Thaw Cycles over a Snow-Covered Surface by Using Air-Launched Ground-Penetrating Radar
Authors:
Jadoon, Khan; Weihermller, Lutz; McCabe, Matthew ( 0000-0002-1279-5272 ) ; Moghadas, Davood; Vereecken, Harry; Lambot, Sbastien
Abstract:
We tested an off-ground ground-penetrating radar (GPR) system at a fixed location over a bare agricultural field to monitor the soil freeze-thaw cycles over a snow-covered surface. The GPR system consisted of a monostatic horn antenna combined with a vector network analyzer, providing an ultra-wideband stepped-frequency continuous-wave radar. An antenna calibration experiment was performed to filter antenna and back scattered effects from the raw GPR data. Near the GPR setup, sensors were installed in the soil to monitor the dynamics of soil temperature and dielectric permittivity at different depths. The soil permittivity was retrieved via inversion of time domain GPR data focused on the surface reflection. Significant effects of soil dynamics were observed in the time-lapse GPR, temperature and dielectric permittivity measurements. In particular, five freeze and thaw events were clearly detectable, indicating that the GPR signals respond to the contrast between the dielectric permittivity of frozen and thawed soil. The GPR-derived permittivity was in good agreement with sensor observations. Overall, the off-ground nature of the GPR system permits non-invasive time-lapse observation of the soil freeze-thaw dynamics without disturbing the structure of the snow cover. The proposed method shows promise for the real-time mapping and monitoring of the shallow frozen layer at the field scale.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Temporal Monitoring of the Soil Freeze-Thaw Cycles over a Snow-Covered Surface by Using Air-Launched Ground-Penetrating Radar 2015, 7 (9):12041 Remote Sensing
Publisher:
MDPI AG
Journal:
Remote Sensing
Issue Date:
18-Sep-2015
DOI:
10.3390/rs70912041
Type:
Article
ISSN:
2072-4292
Additional Links:
http://www.mdpi.com/2072-4292/7/9/12041/
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorJadoon, Khanen
dc.contributor.authorWeihermller, Lutzen
dc.contributor.authorMcCabe, Matthewen
dc.contributor.authorMoghadas, Davooden
dc.contributor.authorVereecken, Harryen
dc.contributor.authorLambot, Sbastienen
dc.date.accessioned2015-09-29T05:30:53Zen
dc.date.available2015-09-29T05:30:53Zen
dc.date.issued2015-09-18en
dc.identifier.citationTemporal Monitoring of the Soil Freeze-Thaw Cycles over a Snow-Covered Surface by Using Air-Launched Ground-Penetrating Radar 2015, 7 (9):12041 Remote Sensingen
dc.identifier.issn2072-4292en
dc.identifier.doi10.3390/rs70912041en
dc.identifier.urihttp://hdl.handle.net/10754/578845en
dc.description.abstractWe tested an off-ground ground-penetrating radar (GPR) system at a fixed location over a bare agricultural field to monitor the soil freeze-thaw cycles over a snow-covered surface. The GPR system consisted of a monostatic horn antenna combined with a vector network analyzer, providing an ultra-wideband stepped-frequency continuous-wave radar. An antenna calibration experiment was performed to filter antenna and back scattered effects from the raw GPR data. Near the GPR setup, sensors were installed in the soil to monitor the dynamics of soil temperature and dielectric permittivity at different depths. The soil permittivity was retrieved via inversion of time domain GPR data focused on the surface reflection. Significant effects of soil dynamics were observed in the time-lapse GPR, temperature and dielectric permittivity measurements. In particular, five freeze and thaw events were clearly detectable, indicating that the GPR signals respond to the contrast between the dielectric permittivity of frozen and thawed soil. The GPR-derived permittivity was in good agreement with sensor observations. Overall, the off-ground nature of the GPR system permits non-invasive time-lapse observation of the soil freeze-thaw dynamics without disturbing the structure of the snow cover. The proposed method shows promise for the real-time mapping and monitoring of the shallow frozen layer at the field scale.en
dc.language.isoenen
dc.publisherMDPI AGen
dc.relation.urlhttp://www.mdpi.com/2072-4292/7/9/12041/en
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).en
dc.subjectground-penetrating radaren
dc.subjectfreeze-thaw cyclesen
dc.subjectseasonal snow coveren
dc.subjectinversionen
dc.titleTemporal Monitoring of the Soil Freeze-Thaw Cycles over a Snow-Covered Surface by Using Air-Launched Ground-Penetrating Radaren
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalRemote Sensingen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionAgrosphere (IBG-3), Forschungszentrum Jlich GmbH, 52425 Juelich, Germanyen
dc.contributor.institutionFederal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, 30655 Hannover, Germanyen
dc.contributor.institutionEarth and Life Institute, Universite Catholique de Louvain, Croix du Sud, 2 box L7.05.02, Louvain-la-Neuve B-1348, Belgiumen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorJadoon, Khanen
kaust.authorMcCabe, Matthewen
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