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Meteorological data assimilation method, device and equipment, readable storage medium and product

A meteorological data and atmospheric technology, applied in the field of meteorological science, can solve problems such as inability to assimilate meteorological data

Pending Publication Date: 2022-04-15
CHINESE ACAD OF METEOROLOGICAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The disclosure provides a meteorological data assimilation method, device, equipment, readable storage medium and product, which are used to solve the technical problem that the existing data assimilation system cannot assimilate the meteorological data of the unstructured grid numerical model

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  • Meteorological data assimilation method, device and equipment, readable storage medium and product
  • Meteorological data assimilation method, device and equipment, readable storage medium and product

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments It is a part of the embodiments of the present disclosure, but not all of them. All other embodiments obtained based on the embodiments in the present disclosure belong to the protection scope of the present disclosure.

[0029] In view of the above-mentioned technical problem that the existing data assimilation system cannot assimilate the meteorological data of the unstructured grid numerical model, the present disclosure provides a meteorological data assimilation method, device, equipment, readable storage medium and product .

[0030] It should be noted that the meteorological data assimilation method, device, equipment...

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Abstract

The invention provides a meteorological data assimilation method, device and equipment, a readable storage medium and a product, and the method comprises the steps: obtaining a target observation vector corresponding to at least one observation content, and determining an observation error matrix corresponding to the target observation vector; obtaining a three-dimensional atmosphere variable background field in an unstructured grid mode, remapping the three-dimensional atmosphere variable background field to a preset structural grid to obtain a background field vector, and determining a background error matrix according to a preset global background error and the three-dimensional atmosphere variable background field; performing cost function minimization iterative calculation according to the target observation vector, the observation error matrix, the background field vector, the background error matrix and the observation operator to obtain structural grid data; and performing reverse grid remapping operation on the structural grid data to obtain a target data structure required by initialization of the unstructured grid mode. The data assimilation operation of the meteorological data in the unstructured grid numerical model is realized, so that the assimilation operation of the meteorological data better meets the leading-edge requirements of the industry.

Description

technical field [0001] The present disclosure relates to the field of meteorological sciences, in particular to a meteorological data assimilation method, device, equipment, readable storage medium and product. Background technique [0002] In recent years, due to the frequent occurrence of meteorological disasters such as typhoons, tornadoes, and rainstorms, heavy losses have been caused to society and families. Therefore, accurate and efficient weather and climate forecasts have become increasingly important. Accurate weather and climate forecasts generally require the cooperation of atmospheric numerical models and data assimilation systems. [0003] The existing atmospheric numerical models are generally structured grid numerical models. Data assimilation technology is based on considering the actual information of the atmosphere and the information of the numerical model, and minimizes the cost function by constructing it, so that the numerical model is closer to the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/26G06F17/16G06F111/10
Inventor 孙溦张祎李建
Owner CHINESE ACAD OF METEOROLOGICAL SCI