海洋激光雷达实验与仿真结果的对比

Comparison of oceanic lidar experiments and simulation results

海洋激光雷达是探测上层海水并构建海洋立体观测网络的重要遥感设备。文中将激光雷达实验数据与MC (Monte Carlo)仿真、解析模型、原位数据进行综合对比,检验它们的匹配程度。与实验实测的激光雷达回波信号相比,MC仿真和解析模型均有很高的一致性(R^2>0.97),将原位漫射衰减系数(Kd)近似代入普通激光雷达方程也有较好的一致性(R^2>0.92)。反演得到的激光雷达衰减系数(α)表现出了相似的结果,MC仿真和解析模型具有更佳的一致性。结果表明:海洋激光雷达实验结果能与MC和解析模型的仿真结果很好地匹配。

Oceanic lidar is a vital remote sensing device for detecting the upper ocean and constructing the 3-D ocean observation network. In this paper, the experimental data of lidar were compared with Monte Carlo(MC) simulation, analytical model and in situ data to find their matched-degree. Compared with experimental lidar signals, the MC simulation and analytical model have high agreement( R^2>0.97).The normal lidar equation approximately adopting the in situ diffuse attenuation coefficient( Kd) also has good consistency(R^2>0.92). The retrieved lidar attenuation coefficients show similar results. The MC simulation and the analytical model have better consistency. The results show that the experimental results of oceanic lidar match well with the simulation results of MC and analytical model.