For the satellite remote sensing data, it is necessary to evaluate the adjacency effect due to atmospheric scattering. Accurate modeling of the adjacency effect requires capabilities dealing with rugged areas and multiple scattering. In this paper, estimation of the adjacency effect is done by calculating the contribution of photons after the multiple scattering process through a many layered atmosphere. For the requirement of fast calculation in remote sensing simulation system, we adopt the approximate ISAACS 2-stream and flux adding method to model the adjacency effect. We evaluate the multiple scattering model by simulating the at-sensor radiance observed over synthetic rugged scenes under varying atmospheric conditions. Radiance comparisons with a single scattering model show good agreement in the clear atmosphere. Relative radiance differences are found to be about 11% in the dust atmosphere, increasing to 15% in the steep areas. Being coupled with the simulation model for remote sensing, it can be used in generation of simulated datasets and validation of the data processing algorithms.
Cheng Jiang, Yunfei Bao, Kun Xing, Long Gao, and Fangqi Li, "Estimation of the adjacency effect with multiple scattering in the simulated signals observed over rugged areas," Proc. SPIE 10001, Remote Sensing of Clouds and the Atmosphere XXI, 100010I (Presented at SPIE Remote Sensing: September 28, 2016; Published: 19 October 2016); https://doi.org/10.1117/12.2241785.
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