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024 7 _ |2 DOI
|a 10.1109/TGRS.2009.2031907
024 7 _ |2 WOS
|a WOS:000274794600013
037 _ _ |a PreJuSER-11777
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Geochemistry & Geophysics
084 _ _ |2 WoS
|a Engineering, Electrical & Electronic
084 _ _ |2 WoS
|a Remote Sensing
100 1 _ |0 P:(DE-HGF)0
|a Minet, J.
|b 0
245 _ _ |a Soil Surface Water Content Estimation by Full-Waveform GPR Signal Inversion in the Presence of Thin Layers
260 _ _ |a New York, NY
|b IEEE
|c 2010
300 _ _ |a 1138 - 1150
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
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336 7 _ |a Output Types/Journal article
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336 7 _ |a Journal Article
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|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |0 17961
|a IEEE Transactions on Geoscience and Remote Sensing
|v 48
|x 0196-2892
|y 3
500 _ _ |a This work was supported in part by the Belgian Science Policy Office in the frame of the Stereo II Programme-project SR/00/100 (HYDRASENS) and in part by Fonds de la Recherche Scientifique, Belgium.
520 _ _ |a We analyzed the effect of shallow thin layers on the estimation of soil surface water content using full-waveform inversion of off-ground ground penetrating radar (GPR) data. Strong dielectric contrasts are expected to occur under fast wetting or drying weather conditions, thereby leading to constructive and destructive interferences with respect to surface reflection. First, synthetic GPR data were generated and subsequently inverted considering different thin-layer model configurations. The resulting inversion errors when neglecting the thin layer were quantified, and then, the possibility to reconstruct these layers was investigated. Second, laboratory experiments reproducing some of the numerical experiment configurations were conducted to assess the stability of the inverse solution with respect to actual measurement and modeling errors. Results showed that neglecting shallow thin layers may lead to significant errors on the estimation of soil surface water content (Delta theta > 0.03 m(3)/m(3)), depending on the contrast. Accounting for these layers in the inversion process strongly improved the results, although some optimization issues were encountered. In the laboratory, the proposed full-waveform method permitted to reconstruct thin layers with a high resolution up to 2 cm and to retrieve the soil surface water content with an rmse less than 0.02 m(3)/m(3), owing to the full-waveform inverse modeling. These results suggest that the proposed GPR approach is promising for field-scale mapping of soil surface water content of nondispersive soils with low electrical conductivity and for instances when soil layering is encountered.
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|x 0
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |2 WoSType
|a J
653 2 0 |2 Author
|a Dielectric properties
653 2 0 |2 Author
|a digital soil mapping
653 2 0 |2 Author
|a ground penetrating radar (GPR)
653 2 0 |2 Author
|a inverse modeling
653 2 0 |2 Author
|a soil layering
653 2 0 |2 Author
|a soil water content
700 1 _ |0 P:(DE-Juel1)VDB54976
|a Lambot, S.
|b 1
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Slob, E.C.
|b 2
700 1 _ |0 P:(DE-HGF)0
|a Vanclooster, M.
|b 3
773 _ _ |0 PERI:(DE-600)2027520-1
|a 10.1109/TGRS.2009.2031907
|g Vol. 48, p. 1138 - 1150
|p 1138 - 1150
|q 48<1138 - 1150
|t IEEE transactions on geoscience and remote sensing
|v 48
|x 0196-2892
|y 2010
856 7 _ |u http://dx.doi.org/10.1109/TGRS.2009.2031907
909 C O |o oai:juser.fz-juelich.de:11777
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914 1 _ |y 2010
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |0 I:(DE-Juel1)VDB793
|d 31.10.2010
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