2019年下半年全国高分五号原始影像数据集

高分五号卫星是环境保护部作为牵头用户的环境专用卫星，也是国家高分重大科技专项中搭载载荷最多、光谱分辨率最高、研制难度最大的卫星。卫星首次搭载了大气痕量气体差分吸收光谱仪、主要温室气体探测仪、大气多角度偏振探测仪、大气环境红外甚高分辨率探测仪、可见短波红外高光谱相机、全谱段光谱成像仪共6台载荷，可对大气气溶胶、二氧化硫、二氧化氮、二氧化碳、甲烷、水华、水质、核电厂温排水、陆地植被、秸秆焚烧、城市热岛等多个环境要素进行监测。高分五号利用大气中各种痕量气体的特征光谱识别、探测痕量气体的含量和空间分布，帮助科研人员更好、更深入地监测和研究大气化学过程如臭氧层的消耗和恢复及气候变化；此外，高分五号还利用其它仪器探测大气气溶胶，监测冰川、积雪覆盖及局地高温情况。

Gaofen-5 is an environment-specialized satellite with the Ministry of Ecology and Environment as its lead user, and it is also the satellite with the largest number of on-board payloads, highest spectral resolution and most difficult development in the National High-resolution Earth Observation Major Science and Technology Project. For the first time, the satellite carries a total of 6 payloads, including the Differential Optical Absorption Spectrometer for Atmospheric Trace Gases, Major Greenhouse Gas Detector, Multi-angle Polarization Detector for the Atmosphere, Infrared Ultra-high Resolution Detector for Atmospheric Environment, Visible and Short-wave Infrared Hyperspectral Camera, and Full-spectrum Spectral Imager. It can monitor multiple environmental factors such as atmospheric aerosols, sulfur dioxide, nitrogen dioxide, carbon dioxide, methane, algal blooms, water quality, thermal discharge from nuclear power plants, terrestrial vegetation, straw burning, and urban heat islands. Gaofen-5 utilizes the characteristic spectra of various trace gases in the atmosphere to identify and detect their content and spatial distribution, assisting researchers in better and more in-depth monitoring and research of atmospheric chemical processes such as ozone layer depletion and recovery, as well as climate change. In addition, Gaofen-5 also uses other instruments to detect atmospheric aerosols, and monitor glaciers, snow cover and local high-temperature conditions.

搜集汇总

背景与挑战

背景概述

该数据集包含2019年下半年中国区域的高分五号卫星原始影像，具有高光谱特性，分辨率为20/40米，主要用于环境监测。高分五号卫星搭载多种载荷，可监测大气痕量气体、温室气体、水质等多种环境因素，数据产品为一级系统辐射校正产品，需通过离线申请方式获取。