Artículo . MethodsX ; vol. 4

A method for soil moisture probes calibration and validation of satellite estimates

Holzman, Mauro | Rivas, Raúl Eduardo | Carmona, Facundo | Niclos, Raquel
Abstract: Optimization of field techniques is crucial to ensure high quality soil moisture data. The aim of the work is to present a sampling method for undisturbed soil and soil water content to calibrated soil moisture probes, in a context of the SMOS (Soil Moisture and Ocean Salinity) mission MIRAS Level 2...
Abstract: Optimization of field techniques is crucial to ensure high quality soil moisture data. The aim of the work is to present a sampling method for undisturbed soil and soil water content to calibrated soil moisture probes, in a context of the SMOS (Soil Moisture and Ocean Salinity) mission MIRAS Level 2 soil moisture product validation in Pampean Region of Argentina. The method avoids soil alteration and is recommended to calibrated probes based on soil type under a freely drying process at ambient temperature. A detailed explanation of field and laboratory procedures to obtain reference soil moisture is shown. The calibration results reflected accurate operation for the Delta-T thetaProbe ML2x probes in most of analyzed cases (RMSE and bias ≤ 05m³/m³). Post-calibration results indicated that the accuracy improves significantly applying the adjustments of the calibration based on soil types (RMSE ≤ 0.022m³/m³, bias ≤ 0.010m³/m³).
  • Origin info: Instituto de Hidrología de Llanuras
  • Publisher: Elsevier
  • Subject: Oceanografía, Hidrología, Recursos Hídricos
  • Keyword: soil water content | Soil Moisture and Ocean Salinity (SMOS) | land surface processes | remote sensing
  • Lenguage: Inglés
  • Extension: p. 243-249

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  • Date of availability: 23 de mayo de 2018
  • Date of accession: 23 de mayo de 2018
  • Date issued: julio de 2017
  • Others identifiers: doi:10.1016/j.mex.2017.07.004
  • URL to resource: http://digital.cic.gba.gob.ar/handle/11746/8097
  • Licence: Attribution-NonCommercial 4.0 International (BY-NC 4.0)
http://creativecommons.org/licenses/by-nc/4.0/
This work is published under license Creative Commons Attribution-NonCommercial 4.0 International (BY-NC 4.0)
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