Parameterization of tillage-induced single-scale soil roughness from 4-m profiles

Soil roughness greatly affects the scattering process of microwaves to the soil surface. Previous studies showed that the values of roughness parameters increase asymptotically with increasing profile length. In this paper, 25-m profiles are used to study the influence of profile length on the rough...

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Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 2006-04, Vol.44 (4), p.878-888
Main Authors: Callens, M., Verhoest, N.E.C., Davidson, M.W.J.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Applied geophysics
Asymptotic properties
Autocorrelation
Autocorrelation functions
Backscatter
Biological and medical sciences
Earth sciences
Earth, ocean, space
Electromagnetic scattering
Exact sciences and technology
Extrapolation
Fundamental and applied biological sciences. Psychology
Generalities. Biometrics, experimentation. Remote sensing
Internal geophysics
Laser profilometer
Microwaves
Parametrization
Radar imaging
Radar scattering
Remote sensing
Rough surfaces
Roughness
Scattering parameters
Soil (material)
Soil moisture
soil roughness
Space technology
Surface roughness
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Summary:Soil roughness greatly affects the scattering process of microwaves to the soil surface. Previous studies showed that the values of roughness parameters increase asymptotically with increasing profile length. In this paper, 25-m profiles are used to study the influence of profile length on the roughness parameters and on the shape of the autocorrelation function. It is further investigated whether correct soil roughness parameters, as obtained from long surface roughness profiles, can be determined from 4-m-long profiles. Therefore, the extrapolation of an empirical relationship between roughness parameters and profile length is investigated, for three different roughness classes. The technique yields parameter values which are comparable to the 25-m roughness parameters.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2005.860488