Method and device for optimizing numerical weather forecast through assimilated inversion of water vapor content

A technology of numerical weather forecasting and water vapor content, which is applied in measuring devices, weather condition forecasting, meteorology, etc., can solve the problems that the accuracy of weather forecasting needs to be improved, and achieve the effect of improving the application effect

Active Publication Date: 2019-05-21
BEIJING HUAYUN SHINETEK TECH CO LTD
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[0004] The technical problem to be solved by the present invention is how to

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  • Method and device for optimizing numerical weather forecast through assimilated inversion of water vapor content
  • Method and device for optimizing numerical weather forecast through assimilated inversion of water vapor content
  • Method and device for optimizing numerical weather forecast through assimilated inversion of water vapor content

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[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] figure 1 For the flow diagram of the method for optimizing the numerical weather prediction by assimilating and inverting the water vapor content provided in this embodiment, see figure 1 , the method includes:

[0030] 101: Obtain the initial field of the numerical weather prediction model and the radiance observed by the satellite;...

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Abstract

The embodiment of the invention discloses a method and device for optimizing numerical weather forecast through assimilated inversion of water vapor content. The method comprises: calculating the layered water vapor content of each atmospheric layer through inversion according to the radiance received by an observation satellite and generated by ground radiation, optimizing the initial field of the numerical weather forecast mode according to the calculated layered water vapor content of each atmospheric layer to obtain an optimized initial field, and carrying out new weather forecast throughthe optimized initial field. The optimized initial field considers the influence of water vapor in the atmosphere on the field, so that the weather forecast of the optimized initial field can reflectthe real weather condition more accurately compared with the weather forecast based on the original initial field. According to the method, the optimization of the initial field by combining satelliteobservation data is realized, and the weather forecast closer to the real condition can be obtained through the optimized target initial field.

Description

technical field [0001] The invention relates to the technical field of meteorological numerical forecasting, in particular to a method and device for optimizing numerical weather forecasting through assimilation and inversion of water vapor content. Background technique [0002] The accuracy of numerical weather prediction mainly depends on the accuracy of the forecast model and the initial field of the model. At present, the error of the numerical model has been effectively controlled, and how to improve the accuracy of the initial field of the model has become a major research topic for scientists at home and abroad. With the improvement of the temporal and spatial resolution of satellites at home and abroad, satellite data are gradually replacing the dominant position of conventional detection data, and have become important and effective observation data for improving the effect of numerical weather prediction. The well-developed numerical weather prediction model WRF a...

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Application Information

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IPC IPC(8): G01W1/10
Inventor 瞿建华冉茂农鄢俊洁张乃强张烺
Owner BEIJING HUAYUN SHINETEK TECH CO LTD
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