吉林一号光谱星（JL1GP02-5M）- 塔吉克斯坦（2021-2023）

JL1GP02-5M数据集由吉林一号光谱02卫星的多光谱成像仪所拍摄的遥感影像数据制作、构建而成。在传感器参数方面,该数据集的空间分辨率为5-20m,共有19个多光谱谱段。在空间范围方面,该数据集对“一带一路”区域实现3年内2次覆盖。在物理属性方面,该数据集为对光谱卫星多光谱成像仪的L1级数据进行大气校正和正射校正后的地表反射率数据。The JL1GP02-5M dataset is developed from remote sensing imagery acquired by the multispectral imager aboard the Jilin-1 Spectral 02 satellite. With regard to sensor parameters, the dataset has a spatial resolution ranging from 5 m to 20 m and a total of 19 multispectral bands. For spatial coverage, the dataset has been revisited twice over the Belt and Road region within a three-year timeframe. In terms of physical properties, this dataset comprises surface reflectance data derived after performing atmospheric correction and orthorectification on the L1-level data generated by the satellite’s multispectral imager.

搜集汇总

背景与挑战

背景概述

该数据集是吉林一号光谱02号卫星多光谱成像仪获取的遥感影像数据，覆盖塔吉克斯坦及“一带一路”区域，时间范围为2021年6月至2023年3月，具有5-20米空间分辨率和19个多光谱波段。数据经过大气校正和正射校正，提供地表反射率产品，对“一带一路”65个国家的总覆盖率超过90%，地表反射率平均绝对精度不低于7%，确保数据质量可靠。