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- W2364201840 abstract "HJ-1 Hyperspectral image radiometer is on the HJ-1A satellite to be launched in 2007.It will provide images in about 135 spectral bands between 0.45 and 0.95μm,with spatial resolution of 100 meters.HJ-1 Hyper-spectral image radiometer will give a return visit every 96 hours.Aerosol optical thickness retrieval is discussed in this paper.The aerosol optical thickness retrieval is always conducted over the dense dark vegetation,because green vegetation are dark in the red(around 0.66 μm) and blue(around 0.46μm) spectral region.The radiance measured by the sensor increases with the aerosol optical depth increases,the aerosol information can be easily separated from the land surface.We simulated the HJ-1 high-spectral data using HYPERION data,then selected the algorithm of Dense Dark Vegetation to retrieve aerosol optical thickness from the simulated data.For lacking of shortwave-infrared and mid-infrared bands,the dense dark vegetation pixels detected by NDVI(normalized difference vegetation index),the reflectance of the dense dark vegetation pixels is 0.035 in blue band and 0.055 in red band.The results show that the HJ-1 high-spectral data can be well applied in aerosol optical thickness retrieval." @default.
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- W2364201840 date "2006-01-01" @default.
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- W2364201840 title "The Application of HJ-1 Hyperspectral Imaging Radiometer to Retrieve Aerosol Optical Thickness over Land" @default.
- W2364201840 doi "https://doi.org/10.11834/jrs.200605114" @default.
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