Global accumulated snow judgment method and device based on geostationary orbit satellite

The invention discloses a global accumulated snow judgment method based on a geostationary orbit satellite, wherein the method comprises the following steps: performing data preprocessing: performing re-projection and re-sampling of the data of the geostationary orbit satellite according to the same...

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Bibliographic Details
Main Authors ZHANG PING, LI ZHEN, QIAO HAIWEI
Format Patent
LanguageChinese
English
Published 18.02.2022
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The invention discloses a global accumulated snow judgment method based on a geostationary orbit satellite, wherein the method comprises the following steps: performing data preprocessing: performing re-projection and re-sampling of the data of the geostationary orbit satellite according to the same standard, and calculating the reflectivity and brightness temperature of each wave band; performing maximum brightness temperature fusion on multi-time-phase data, wherein the brightness temperature of the 10 [mu]m waveband corresponding to the pixel value of the synthesized image is the maximum value of the brightness temperature of the 10 [mu]m waveband of the non-night time phase in the multiple time phases on the same day; selecting accumulated snow discrimination factors, and determining a discrimination threshold value of each discrimination factor on the basis of the pixel value; and processing the pixel value of the geostationary orbit satellite according to the selected accumulated snow discrimination fac
Bibliography:Application Number: CN202111154407