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Chapitre D'ouvrage Année : 2014

Using airborne thermal inertia mapping to analyze the soil spatial variability at regional scale

Résumé

The study aims at demonstrating the ability of thermal airborne remote sensing to help in delineating soil types over large areas. Measurements of the surface temperature variations were compared with electrical resistivity measurements recorded for three depths of investigation. The study area was located in the Beauce region with Calcisols and Cambisols, 0.3 to 1.2 m thick. Airborne thermal measurements were recorded by the ARIES radiometer in the 10.5-12.5 µm thermal infra-red channel, on December 11th 2002. Comparisons between thermal airborne data and electrical resistivity measurements demonstrated that: the spatial organisation of the thermal inertia map resembles the spatial organisation of the 0-170 cm resistivity map, suggesting that the investigation depth of the two methods is similar; the thermal inertia values were significantly different between the Calcisols and the Cambisols. In the Beauce area, the thermal inertia map would the consist of a useful tool to characterize the soil spatial variability with a high spatial resolution.
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Dates et versions

hal-02795584 , version 1 (05-06-2020)

Identifiants

  • HAL Id : hal-02795584 , version 1
  • PRODINRA : 254861
  • WOS : 000341268700072

Citer

Isabelle I. Cousin, Catherine Pasquier, Maud Seger, Alain Tabbagh. Using airborne thermal inertia mapping to analyze the soil spatial variability at regional scale. GlobalSoilMap: Basis of the global soil information system, CRC Press, 2014. ⟨hal-02795584⟩
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