一种下击暴流对称与不对称结构解析方法、介质及程序产品
By establishing a reference based on the disaster point in downburst events, calculating the horizontal center of the weather system and performing Fourier wavenumber decomposition, the problems of insufficient unified benchmark and wavenumber mode identification in the analysis of symmetric and asymmetric structures in existing technologies are solved. Stable extraction and verifiable characterization of downburst structures are achieved, thus improving the accuracy of early warning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINESE ACAD OF METEOROLOGICAL SCI
- Filing Date
- 2026-04-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack a unified reference standard for the analysis of symmetric and asymmetric structures of downbursts, have insufficient wavenumber mode identification capabilities, and are difficult to achieve quantitative separation and verifiable structural characterization. In particular, they lack a systematic analysis framework under the condition of multi-source meteorological space field data.
By establishing event references with disaster points as constraints, calculating the horizontal center of the weather system, constructing a polar coordinate sampling framework, performing high-precision interpolation and resampling, and using the Fourier wavenumber decomposition method to convert the target variable field into radial and azimuth expressions, quantitative separation of symmetric structural components and various asymmetric wave modes is achieved.
It achieves stable extraction and verifiable output of downburst structural features, supports quantitative analysis of the evolution of disaster hazard orientation and intensity, and improves the accuracy of early warning and the reliability of structural research.
Smart Images
Figure CN122045559B_ABST