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

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

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 languageEnglish (US)
Pages (from-to)1571-1583
Number of pages13
JournalInternational Journal of Remote Sensing
Volume22
Issue number8
DOIs
StatePublished - Jan 1 2001

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Multitemporal monitoring of soil moisture with RADARSAT SAR during the 1997 Southern Great Plains hydrology experiment'. Together they form a unique fingerprint.

Cite this