澳大利亚森林火灾高分四号卫星监测图

封面图片为2020-01-11高分四号卫星获取的澳大利亚森林火灾影像,利用着火点自适应阈值检测方法生成的森林火灾监测结果图,空间分辨率为400 m。高分四号卫星是中国首颗地球静止轨道高分辨率对地观测光学遥感卫星,具有普查、凝视、区域、机动巡查4种工作模式,其搭载的全色/多光谱相机(简称PMS)空间分辨率优于50 m,单景成像幅宽优于500 km,中波红外相机(简称IRS)空间分辨率优于400 m,单景成像幅宽优于400 km。

Australian Forest Fire Monitoring Map by GF-4 Satellite

The cover image shows the forest fire monitoring result produced by the adaptive threshold for active fire identification on the basis of the GF-4 PMI image of Australia,which was obtained on January 11,2020,with a spatial resolution of 400 m.The GF-4 satellite is the first geosynchronous orbit optics remote sensing satellite with a high spatial resolution in China.It has four observation working modes,including general,stare,regional and mobile patrol.This satellite is equipped with a panchromatic/multispectral camera(PMS)with a resolution of 50m and swath of over 500 km,and medium wave infrared ray(IRS)with a resolution of 400m and swath of over 400 km.It can provide high-efficiency and-resolution observation images throughout China and surrounding countries and has provided new technical methods for disaster risk warning and forecasting,forest and grassland fire monitoring,seismic structure information extracting,and meteorological monitoring in China and neighboring regions.