Improvement method of Bevis model for regional weighted average temperature based on sounding data
A weighted average and model technology, applied in the field of global navigation systems, can solve the problem of low calculation accuracy of the Bevis model and achieve the effect of improving calculation accuracy
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[0021] The technical solution of the present invention will be further introduced below in combination with specific implementation methods and accompanying drawings.
[0022] This specific embodiment discloses a Bevis model improvement method based on the regional weighted average temperature of sounding data, comprising the following steps:
[0023] S1: Preprocess the sounding data of the station to obtain the true value T of the weighted average temperature m0 and the true value T of the surface temperature s0 .
[0024] This specific implementation mode adopts the radiosonde data of 76 stations in China from 2013 to 2015, figure 2 It is the distribution map of each station in China. Taking station 57494 as an example, the sounding data provide the atmospheric characteristic layer and wind layer data of different isobaric surface layers, such as figure 1 shown. Atmospheric characteristic layer parameters include geopotential height (HGHT), air temperature (TEMP), dew ...
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