The Chinese High-resolution Earth Observation System(CHEOS)program has successfully launched 7 civilian satellites since 2010.These satellites are named by Gaofen(meaning high resolution in Chinese,hereafter noted as ...The Chinese High-resolution Earth Observation System(CHEOS)program has successfully launched 7 civilian satellites since 2010.These satellites are named by Gaofen(meaning high resolution in Chinese,hereafter noted as GF).To combine the advantages of high temporal and comparably high spatial resolution,diverse sensors are deployed to each satellite.GF-1 and GF-6 carry both high-resolution cameras(2m resolution panchromatic and 8m resolution multispectral camera),providing high spatial imaging for land use monitoring;GF-3 is equipped with a C-band multipolarization synthetic aperture radar with a spatial resolution of up to 1 meter,mostly monitoring marine targets;GF-5 carried 6 sensors including hyperspectral camera and directional polarization camera,dedicated to environmental remote sensing and climate research,such as aerosol,clouds,and greenhouse gas monitoring;and GF-7 laser altimeter system payload enables a three-dimensional surveying and mapping of natural resource and land surveying,facilitating the accumulation of basic geographic information.This study provides an overview of GF civilian series satellites,especially their missions,sensors,and applications.展开更多
基金This study was supported by the National Natural Science Foundation of China(Grant Nos.41830109,42025504,42175152,41871254,and 41701406).
文摘The Chinese High-resolution Earth Observation System(CHEOS)program has successfully launched 7 civilian satellites since 2010.These satellites are named by Gaofen(meaning high resolution in Chinese,hereafter noted as GF).To combine the advantages of high temporal and comparably high spatial resolution,diverse sensors are deployed to each satellite.GF-1 and GF-6 carry both high-resolution cameras(2m resolution panchromatic and 8m resolution multispectral camera),providing high spatial imaging for land use monitoring;GF-3 is equipped with a C-band multipolarization synthetic aperture radar with a spatial resolution of up to 1 meter,mostly monitoring marine targets;GF-5 carried 6 sensors including hyperspectral camera and directional polarization camera,dedicated to environmental remote sensing and climate research,such as aerosol,clouds,and greenhouse gas monitoring;and GF-7 laser altimeter system payload enables a three-dimensional surveying and mapping of natural resource and land surveying,facilitating the accumulation of basic geographic information.This study provides an overview of GF civilian series satellites,especially their missions,sensors,and applications.
