These feature importance values appear to support the interpretation that the cation exchange capacity model is fundamentally responding to relative changes in soil organic carbon and clay content. The high importance of the shortwave infrared bands indicates that clay content is likely the bigger driver...
An important step in the methodology is the definition of thresholds for each spectral index (NDVI and NBR2) to discriminate soils from other targets, which usually requires not only expert interpretation of the image but also field observations. Due to the scale of this work, broad thresholds ...
The deployment of remote sensing platforms has facilitated the mapping of soil properties to a great extent. However, the accuracy of these soil property estimates is compromised by the presence of non-soil cover, which introduces interference with the a
Indices for mapping the built-up and bare land in urban areas, such as the Normalised Difference Built-Up Index (NDBI) [7], Index-based Built-Up Index (IBI) [1], Urban Index (UI) [8], Normalised Difference Bareness Index (NDBaI) [4], and Bare soil index (BI) [9], have been ...
The adjusted real refractive index has a similar physical meaning as the soil dielectric, which also depends on soil properties. Therefore, this form of the Fresnel reflectivity equation can be applied to soil moisture retrieval. The complete form of equation is written as follows: 𝑟𝑞= ...
Shi et al. [16] established a decision tree model based on elevation, MODIS surface temperature, normalized vegetation index, and advanced microwave scanning of radiometer soil moisture to produce a map of the perennial permafrost distribution in the Tibetan Plateau. Niu et al. [17] used a ...
In this equation, the real part of the soil dielectric ε is replaced by the adjusted real refractive index Nr. The adjusted real refractive index has a similar physical meaning as the soil dielectric, which also depends on soil properties. Therefore, this form of the Fresnel reflectivity ...
However, SVM has a better interpretation of the integrity on landslide and bareland. The spatial information is a fundamental multi-temporal approach. The method can successfully be applied to serval periods of this area or another area. Thus, if the based rule of similarity spectrum can be ...