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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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
18.02.2022
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Subjects | |
Online Access | Get full text |
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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 |
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Bibliography: | Application Number: CN202111154407 |