基于云的植被多波段3D联合模拟研究

This study focuses on the vegetation 3D multi-band joint simulation research. The study aims to explore the vegetation multiband radiation scattering characteristics simulation mechanism and develop a joint 3D simulation cloud platform. The platform can simulate the VIS/NIR BRDF, TIR band DBT and MW backscattering coefficient with parallel algorithm. .This study provides a new way and a new tool for remote sensing mechanism research. By analyzing the mechanism of the 3D radiation scattering characteristic simulation models of different bands, we proposes a unified scene and unified drive parameter scheme, which laying the foundation for multi-band joint simulation. In this study, WebGL technology and cloud computing technology are comprehensively used to improve the visualization effect and improve the computation efficiency. The lightweight WebGIS cloud platform is based on the open source library. The platform provides a powerful support for large scene, cross band and joint inversion research.Combined with the measurement data of Huailai/Genhe, this study compares the parallel algorithm provided by our platform with corresponding serial algorithm as well as the observation data. The quantitative evaluation is given in the end.

本研究围绕植被冠层3D多波段联合模拟开展研究，旨在探索植被冠层多波段辐射散射特性联合模拟机理，研发基于统一场景和驱动参数，可同时模拟VIS/NIR波段二向反射特性、TIR波段热辐射方向性以及MW波段后向散射特性的多波段3D联合模拟云平台，以期为遥感机理研究开拓新思路，提供新工具。.本研究通过分析不同波段3D辐射散射特性模拟模型的机理，提出场景统一与参数统一的联合模拟方案，为多波段联合模拟奠定基础。本研究综合使用WebGL技术和云计算技术，通过对原模型进行并行化改进，基于开源库研发轻量级WebGIS云平台，实现三维场景的快速可视化，以及联合模拟的并行计算，为大区域、跨波段的3D联合模拟和联合反演提供有力支撑。本研究结合怀来/根河试验数据，利用所提出的云平台进行多波段联合模拟，并与实测数据以及相应的串行算法模拟结果进行比较验证，给出定量评价。

本研究围绕植被冠层3D多波段联合模拟开展研究，旨在探索植被冠层多波段辐射散射特性联合模拟机理，研发基于统一场景和驱动参数，可同时模拟VIS/NIR波段二向反射特性、TIR波段热辐射方向性以及MW波段后向散射特性的多波段3D联合模拟云平台，以期为遥感机理研究开拓新思路，提供新工具。.本研究通过分析不同波段3D辐射散射特性模拟模型的机理，提出场景统一与参数统一的联合模拟方案，为多波段联合模拟奠定基础。本研究综合使用WebGL技术和云计算技术，通过对原模型进行并行化改进，基于开源库研发轻量级WebGIS云平台，实现三维场景的快速可视化，以及联合模拟的并行计算，为大区域、跨波段的3D联合模拟和联合反演提供有力支撑。本研究结合怀来/根河试验数据，利用所提出的云平台进行多波段联合模拟，并与实测数据以及相应的串行算法模拟结果进行比较验证，给出定量评价。.