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DETERMINATION OF ATTENUATION AND PENETRATION DEPTH OF MICROWAVES IN SOIL
Microwave Remote Sensing: Land and Ocean Surface Applications, 2nd Ed.
Soilmoisture is an essential variable in Earth surfacemodeling. However, at the longer L-band wavelength of these satellites, the emitting behavior of the land becomes very complex due to the unknown deeper penetration depth. This complexity leads to more uncertainty in calibration and validation of satellite soil moisture product and their applications. In the framework of zeroth-order incoherent microwave radiative transfer model, the soil effective temperature is the only component that contains depth information and thus provides the necessary link to quantify the penetration depth. By means of the multi-layer soil effective temperature Lv's T eff scheme, we have determined the relationship between the penetration depth and soil effective temperature and verified it against field observations at the Maqu Network. The key findings are that the penetration depth can be estimated according to Lv's T eff scheme with the assumption of linear soil temperature gradient along the optical depth; and conversely, the soil temperature at the penetration depth should be equal to the soil effective temperature with the same linear assumption. The accuracy of this inference depends on to what extent the assumption of linear soil temperature gradient is satisfied.



Estimation of Penetration Depth from Soil Effective Temperature in Microwave Radiometry
Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Owe and A. Owe , A.
Measurement of dielectric permittivity of soil has been studied by many researchers. However, few studies have been conducted on contaminated soil. The motivation of the present study is to investigate the behavior of sandy soil contaminated by lubricant oil at microwave frequency.
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But Without pretending to be presumptuous, I review myself in this guy...
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