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Effect of surface roughness on the microwave emission from soils
Open accessAbstract
The effect of surface roughness on the brightness temperature of a moist terrain has been studied through the modification of Fresnel reflection coefficient and using the radiative transfer equation. The modification involves introduction of a single parameter to characterize the roughness. It is shown that this parameter depends on both the surface height variance and the horizontal scale of the roughness. Model calculations are in good quantitative agreement with the observed dependence of the brightness temperature on the moisture content in the surface layer. Data from truck mounted and airborne radiometers are presented for comparison. The results indicate that the roughness effects are great for wet soils where the difference between smooth and rough surfaces can be as great as 50K.
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Citations
Cited by
Survey of methods for soil moisture determination
Schmugge, T. J., Jackson, T. J., & McKim, H. L. (1980) · Water Resources Research · doi:10.1029/wr016i006p00961 · Cited by 455
Self-citationAnalysis of CYGNSS Data for Soil Moisture Retrieval
Clarizia, M. P., Pierdicca, N., Costantini, F., & Floury, N. (2019) · IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing · doi:10.1109/jstars.2019.2895510 · Cited by 277
Metadata
- Authors
- Choudhury, B. J., Schmugge, T. J., Chang, A., & Newton, R. W.
- Venue
- Journal of Geophysical Research: Oceans
- Publisher
- American Geophysical Union (AGU)
- Published
- 1979-09-20
- Volume
- 84
- Issue
- C9
- Pages
- 5699-5706
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2066247114
- Cited by
- 620
- References
- 0
- FWCI
- 17.83
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Effect of surface roughness on the microwave emission from soils. https://app.cochat.ai/papers/10.1029/jc084ic09p05699
- The paper
- Choudhury, B. J., Schmugge, T. J., Chang, A., & Newton, R. W. (1979). Effect of surface roughness on the microwave emission from soils. Journal of Geophysical Research: Oceans. https://doi.org/10.1029/jc084ic09p05699
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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