论文部分内容阅读
本文提出了一种利用NOAA-14极轨卫星甚高分辨率辐射计(AVHRR)可见光和近红外两个通道的反射率资料遥感晴空条件下、均匀下垫面上整层大气气溶胶光学厚度的双通道方法。该方法利用气溶胶散射的波长关系,把基于大气辐射传输方程近红外通道的光学厚度均值引入可见通道,使单个通道中地表反射率和大气因子参数化的误差得以抵消,极大地提高了遥感精度(>90％)。
In this paper, we propose a new method to estimate the aerosol optical depth of the uniform underlying surface under the condition of clear sky using the reflectivity data of visible and near-infrared of NOAA-14 polar orbital satellite very high resolution radiometer (AVHRR) Two-lane method. The method utilizes the wavelength relationship of aerosol scattering to introduce the optical thickness mean of the near-infrared channel based on the atmospheric radiation transmission equation into the visible channel so that the error of parametrizing the surface reflectance and the atmospheric factor in a single channel can be offset, thereby greatly improving the accuracy of the remote sensing (> 90%).