Multitemporal monitoring of soil moisture with RADARSAT SAR during the 1997 Southern Great Plains hydrology experiment

A. J. Wickel; T. J. Jackson; Eric F. Wood

doi:10.1080/01431160120291

Multitemporal monitoring of soil moisture with RADARSAT SAR during the 1997 Southern Great Plains hydrology experiment

A. J. Wickel, T. J. Jackson, Eric F. Wood

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Abstract

Multitemporal RADARSAT Synthetic Aperture Radar (SAR) imagery was evaluated for monitoring soil moisture during the Southern Great Plains 1997 Hydrology Experiment (SGP97). Over the 1-month experiment a total of 10 RADARSAT (C-band; 5.3GHz; HH polarized) acquisitions were obtained. After co-registration of the images, the dependence of the backscattering coeYcient (σ°) on incidence angle (θ) was evaluated. An angular correction scheme was applied to the data and the correlation of σ° values with volumetric soil moisture measurements was determined. A high positive correlation between the two was observed for wheat stubble fields, whereas no correlation could be observed for pasture ? elds. A change detection approach yielded a correlation of soil moisture changes to s� changes for wheat stubble ? elds, indicating the potential of this method for soil moisture monitoring.

Original language	English (US)
Pages (from-to)	1571-1583
Number of pages	13
Journal	International Journal of Remote Sensing
Volume	22
Issue number	8
DOIs	https://doi.org/10.1080/01431160120291
State	Published - Jan 1 2001

All Science Journal Classification (ASJC) codes

Earth and Planetary Sciences(all)

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10.1080/01431160120291

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title = "Multitemporal monitoring of soil moisture with RADARSAT SAR during the 1997 Southern Great Plains hydrology experiment",

abstract = "Multitemporal RADARSAT Synthetic Aperture Radar (SAR) imagery was evaluated for monitoring soil moisture during the Southern Great Plains 1997 Hydrology Experiment (SGP97). Over the 1-month experiment a total of 10 RADARSAT (C-band; 5.3GHz; HH polarized) acquisitions were obtained. After co-registration of the images, the dependence of the backscattering coeYcient (σ°) on incidence angle (θ) was evaluated. An angular correction scheme was applied to the data and the correlation of σ° values with volumetric soil moisture measurements was determined. A high positive correlation between the two was observed for wheat stubble fields, whereas no correlation could be observed for pasture ? elds. A change detection approach yielded a correlation of soil moisture changes to s� changes for wheat stubble ? elds, indicating the potential of this method for soil moisture monitoring.",

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T1 - Multitemporal monitoring of soil moisture with RADARSAT SAR during the 1997 Southern Great Plains hydrology experiment

AU - Wickel, A. J.

AU - Jackson, T. J.

AU - Wood, Eric F.

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Y1 - 2001/1/1

N2 - Multitemporal RADARSAT Synthetic Aperture Radar (SAR) imagery was evaluated for monitoring soil moisture during the Southern Great Plains 1997 Hydrology Experiment (SGP97). Over the 1-month experiment a total of 10 RADARSAT (C-band; 5.3GHz; HH polarized) acquisitions were obtained. After co-registration of the images, the dependence of the backscattering coeYcient (σ°) on incidence angle (θ) was evaluated. An angular correction scheme was applied to the data and the correlation of σ° values with volumetric soil moisture measurements was determined. A high positive correlation between the two was observed for wheat stubble fields, whereas no correlation could be observed for pasture ? elds. A change detection approach yielded a correlation of soil moisture changes to s� changes for wheat stubble ? elds, indicating the potential of this method for soil moisture monitoring.

AB - Multitemporal RADARSAT Synthetic Aperture Radar (SAR) imagery was evaluated for monitoring soil moisture during the Southern Great Plains 1997 Hydrology Experiment (SGP97). Over the 1-month experiment a total of 10 RADARSAT (C-band; 5.3GHz; HH polarized) acquisitions were obtained. After co-registration of the images, the dependence of the backscattering coeYcient (σ°) on incidence angle (θ) was evaluated. An angular correction scheme was applied to the data and the correlation of σ° values with volumetric soil moisture measurements was determined. A high positive correlation between the two was observed for wheat stubble fields, whereas no correlation could be observed for pasture ? elds. A change detection approach yielded a correlation of soil moisture changes to s� changes for wheat stubble ? elds, indicating the potential of this method for soil moisture monitoring.

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Multitemporal monitoring of soil moisture with RADARSAT SAR during the 1997 Southern Great Plains hydrology experiment

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