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    Temporal monitoring of the soil freeze-thaw cycles over snow-cover land by using off-ground GPR

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    Type
    Conference Paper
    Authors
    Jadoon, Khan
    Lambot, Sébastien
    Dimitrov, Marin
    Weihermüller, Lutz
    KAUST Department
    Water Desalination and Reuse Research Center (WDRC)
    Biological and Environmental Sciences and Engineering (BESE) Division
    Date
    2013-07
    Permanent link to this record
    http://hdl.handle.net/10754/564765
    
    Metadata
    Show full item record
    Abstract
    We performed off-ground ground-penetrating radar (GPR) measurements over a bare agricultural field to monitor the freeze-thaw cycles over snow-cover. The GPR system consisted of a vector network analyzer combined with an off-ground monostatic horn antenna, thereby setting up an ultra-wideband stepped-frequency continuous-wave radar. Measurements were performed during nine days and the surface of the bare soil was exposed to snow fall, evaporation and precipitation as the GPR antenna was mounted 110 cm above the ground. Soil surface dielectric permittivity was retrieved using an inversion of time-domain GPR data focused on the surface reflection. The GPR forward model used combines a full-waveform solution of Maxwell's equations for three-dimensional wave propagation in planar layered media together with global reflection and transmission functions to account for the antenna and its interactions with the medium. Temperature and permittivity sensors were installed at six depths to monitor the soil dynamics in the top 8 cm depth. Significant effects of soil dynamics were observed in the time-lapse GPR, temperature and permittivity data and in particular freeze and thaw events were clearly visible. A good agreement of the trend was observed between the temperature, permittivity and GPR time-lapse data with respect to five freeze-thaw cycles. The GPR-derived permittivity was in good agreement with sensor observations. The proposed method appears to be promising for the real-time mapping and monitoring of the frozen layer at the field scale. © 2013 IEEE.
    Citation
    Jadoon, K. Z., Lambot, S., Dimitrov, M., & Weihermuller, L. (2013). Temporal monitoring of the soil freeze-thaw cycles over snow-cover land by using off-ground GPR. 2013 7th International Workshop on Advanced Ground Penetrating Radar. doi:10.1109/iwagpr.2013.6601518
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2013 7th International Workshop on Advanced Ground Penetrating Radar
    Conference/Event name
    2013 7th International Workshop on Advanced Ground Penetrating Radar, IWAGPR 2013
    ISBN
    9781479909377
    DOI
    10.1109/IWAGPR.2013.6601518
    ae974a485f413a2113503eed53cd6c53
    10.1109/IWAGPR.2013.6601518
    Scopus Count
    Collections
    Conference Papers; Biological and Environmental Science and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)

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