Urban surface temperature inversion method based on ASRER data
A surface temperature and data technology, applied in the field of urban surface temperature inversion based on ASRER data, can solve the problems of complex logic structure and low inversion accuracy, and achieve the effects of low acquisition cost, high signal-to-noise ratio, and good current situation.
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[0050] In order to make the purpose, technical solution and advantages of the present invention clearer, a method for inversion of urban surface temperature based on ASRER data of the present invention will be further described in detail through the following examples and in conjunction with the accompanying drawings.
[0051] figure 1 It is a flow chart of a method for inversion of urban surface temperature based on ASRER data, which mainly includes the following steps:
[0052] 1) Step 1: Calculate the atmospheric water vapor content w: Calculate the atmospheric water vapor content w using the MODIS remote sensing data of the same period. The calculation formula is as follows:
[0053] w=((0.02-ln(b19 / b2)) / 0.651)²
[0054] Among them, b19 and b2 correspond to the radiation gray value corresponding to the 19th band and the 2nd band in the MODIS data;
[0055] 2) Step 2: Calculate the atmospheric transmittance t13 and t1 corresponding to the two thermal infrared bands of th...
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