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TitleReviewing the Role of Radar in Mapping Soil Management Practices
DownloadDownloads (Preprint)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorMcNairn, H; Brown, R J; Brisco, B; Duguay, C; Boisvert, J B; Pultz, T J
SourceFirst International Conference: Geospatial Information in Agriculture and Forestry, Orlando, June 1-3; 1998., Open
Access logo Open Access
Alt SeriesEarth Sciences Sector, Contribution Series 20042517
Mediapaper; on-line; digital
File formatpdf
Released1998 01 01
AbstractInformation on soil conservation practices, including tillage practices and crop residue management, is required to accurately estimate soil erosion risk, to establish indicators of soil quality and to predict agricultural loadings to surface waterways. A number of recent studies have examined the role of radar in providing information on tillage and crops residue management practices. These studies have concluded that microwaves interact with tillage-induced roughness and as a result, radar imagery may provide useful information on type and timing of tillage. Less is understood about the interaction of microwaves with crop residue cover, but significant correlations between backscatter and residue cover have been observed. This paper briefly summarizes two recent studies which examined the interaction of linearly polarized microwaves (focusing on C-HH) with tilled and residue covered surfaces. The paper then discusses the role of multi-dimensional SAR configurations, including the use of polarimetric SAR parameters, in more completely defining soil management practices. Preliminary results from the 1994 SIR-C data gathered over southern Manitoba suggests that cross-polarized responses and enhanced pedestals associated with multiple scattering may be useful in identifying type and amount of residue.

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