Typhoon modeling method based on non-uniform underlying surface and related device

Abstract

The invention discloses a typhoon modeling method based on a non-uniform underlying surface and a related device, and the method comprises the steps of calculating the total ground surface roughness length of the non-uniform underlying surface, and the total ground surface roughness length comprises a first ground surface roughness length based on terrain and a second ground surface roughness length based on ground surface coverage; calculating a frictional resistance coefficient under the condition of a non-uniform underlying surface according to the total surface roughness length; and building a preset typhoon wind field model according to the frictional resistance coefficient, the preset typhoon wind field model comprises preset boundary conditions, and the preset boundary conditions are configured according to the frictional resistance coefficient. The technical problems that an existing typhoon wind field model does not perform model design for a non-uniform underlying surface, the typhoon wind field structure cannot be accurately reflected, and consequently the applicability and accuracy of the model are low can be solved.

Description

Technical field[0001]This application relates to the field of meteorological monitoring, and in particular to a typhoon modeling method and related devices based on a non-uniform underlying surface.Background technique[0002]A typhoon is a mesoscale weather phenomenon with strong vortices that occurs in the tropical ocean. The central area of ​​a mature typhoon is approximately axisymmetric, and strong wind surrounds the central low wind speed area. The typhoon has an impact area of ​​up to hundreds of kilometers. In the process of its mobile development, it is accompanied by strong winds, waves and heavy rainfall, which can cause significant losses to major projects, infrastructure, transmission lines, and agriculture in coastal areas.[0003]Since most of the ground meteorological observation sites are built on land, and the sites are sparsely distributed, the actual measured typhoon data is relatively limited, and it is difficult to reflect the full picture of the typhoon wind field...

AI Technical Summary

Problems solved by technology

[0004] This application provides a typhoon modeling method and related devices based on non-uniform underlying surface, which is used to solve the problem that the existing typhoon wind field model does not carry out model design for non-uniform underlying surface, and cannot accurately reflect the typhoon wind field structure, resulting in Technical issues with low model applicability and accuracy

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