Advanced search

Multifrequency radar observations of bare surface soil moisture content: a laboratory experiment

(1999) WATER RESOURCES RESEARCH. 35(6). p.1827-1838
Author
Organization
Abstract
This paper reports on a laboratory experiment that investigates the use of active microwave observations to estimate volumetric soil moisture content. The experiment, held in 1995, was set up at the European Microwave Signature Laboratory, Joint Research Centre of the European Communities, Ispra (Italy). Full polarimetric radar observations of a 2 m diameter cylindric container filled with a sandy loam soil were performed. During successive wetting and drying cycles, different soil moisture profiles were generated and observed in situ by means of time domain reflectometry probes. The radar data are analyzed based on the Integral Equation Model that simulates radar backscattering given known surface characteristics, such as moisture content and roughness. This allows the evaluation of the predictive power of the simulation model. We find general good agreement between measurements and simulations, but problems occur at high incidence angles. The model is then used to invert soil moisture information from radar measurements. It is shown that, in spite of the complexity of the model involved, it is possible to retrieve under certain circumstances reliable soil moisture estimates with similar accuracies as the in situ measurements.
Keywords
SCATTERING MODEL, WATER-CONTENT, WET SOIL, MICROWAVE DIELECTRIC BEHAVIOR

Citation

Please use this url to cite or link to this publication:

Chicago
Mancini, Marco, Rudi Hoeben, and Peter A Troch. 1999. “Multifrequency Radar Observations of Bare Surface Soil Moisture Content: a Laboratory Experiment.” Water Resources Research 35 (6): 1827–1838.
APA
Mancini, Marco, Hoeben, R., & Troch, P. A. (1999). Multifrequency radar observations of bare surface soil moisture content: a laboratory experiment. WATER RESOURCES RESEARCH, 35(6), 1827–1838.
Vancouver
1.
Mancini M, Hoeben R, Troch PA. Multifrequency radar observations of bare surface soil moisture content: a laboratory experiment. WATER RESOURCES RESEARCH. 1999;35(6):1827–38.
MLA
Mancini, Marco, Rudi Hoeben, and Peter A Troch. “Multifrequency Radar Observations of Bare Surface Soil Moisture Content: a Laboratory Experiment.” WATER RESOURCES RESEARCH 35.6 (1999): 1827–1838. Print.
@article{120113,
  abstract     = {This paper reports on a laboratory experiment that investigates the use of active microwave observations to estimate volumetric soil moisture content. The experiment, held in 1995, was set up at the European Microwave Signature Laboratory, Joint Research Centre of the European Communities, Ispra (Italy). Full polarimetric radar observations of a 2 m diameter cylindric container filled with a sandy loam soil were performed. During successive wetting and drying cycles, different soil moisture profiles were generated and observed in situ by means of time domain reflectometry probes. The radar data are analyzed based on the Integral Equation Model that simulates radar backscattering given known surface characteristics, such as moisture content and roughness. This allows the evaluation of the predictive power of the simulation model. We find general good agreement between measurements and simulations, but problems occur at high incidence angles. The model is then used to invert soil moisture information from radar measurements. It is shown that, in spite of the complexity of the model involved, it is possible to retrieve under certain circumstances reliable soil moisture estimates with similar accuracies as the in situ measurements.},
  author       = {Mancini, Marco and Hoeben, Rudi and Troch, Peter A},
  issn         = {0043-1397},
  journal      = {WATER RESOURCES RESEARCH},
  keyword      = {SCATTERING MODEL,WATER-CONTENT,WET SOIL,MICROWAVE DIELECTRIC BEHAVIOR},
  language     = {eng},
  number       = {6},
  pages        = {1827--1838},
  title        = {Multifrequency radar observations of bare surface soil moisture content: a laboratory experiment},
  url          = {http://dx.doi.org/10.1029/1999WR900033},
  volume       = {35},
  year         = {1999},
}

Altmetric
View in Altmetric
Web of Science
Times cited: