Journal of Remote Sensing / 2021 / Article / Fig 2

Research Article

An Air-to-Soil Transition Model for Discrete Scattering-Emission Modelling at L-Band

Figure 2

Flowchart illustrating the procedure for the forward simulations by the coupled TVG and AIEM model including the ATS model. ➀-➉ represent the workflow. The square rectangle represents inputs and parameters, and the rounded rectangle in orange refers to models and algorithms. The outermost dash blue box encloses elements in the TVG+AIEM+ATS model. Inside three dash boxes in blue enclose elements in modelling scattering of vegetation, soil parts, and their combination, respectively. The black dashed box inside the upper blue dash box is with inputs used for computing scattering and transmission matrices. The black dashed box inside the lower blue dash box is with inputs used for calculating the dielectric constant, and the dashed arrow points to inputs used for ATS-based simulations (see Section 2.2.4). Detailed descriptions of the ATS model are seen in Section 2.2.2, as well as Wilheit coherent and Lv incoherent models in Section 2.2.3.