3D Lightning Risk Mapping for Takeoff and Landing Avoidance
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Solution Overview
Problem
Existing lightning strike risk evaluation methods are limited to two-dimensional assessments, making it difficult to avoid strikes during takeoff and landing phases, where vertical avoidance is crucial.
Innovation Solution
A device and system that derive a three-dimensional lightning strike risk by integrating echo intensity and air temperature data from meteorological radar and observation devices, allowing for altitude-specific risk assessments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two-dimensional lightning strike risk evaluation method is used, then existing evaluation capability is maintained, but avoidance behavior in takeoff and landing phase becomes difficult
Solution Approach 1:
The patent transitions from two-dimensional planar risk evaluation to three-dimensional risk evaluation by adding the vertical altitude dimension. The system derives altitude distribution of echo intensity and air temperature, and combines them with lightning strike risk degree to create a three-dimensional risk model that enables avoidance behavior in both horizontal and vertical directions during takeoff and landing phases.
2Adaptability or versatility
If three-dimensional lightning strike risk derivation is implemented, then avoidance behavior capability is improved, but device complexity increases
Solution Approach 1:
The patent divides the atmospheric space into multiple regions using latitude and longitude grids, and further segments each region into altitude layers. The echo intensity and air temperature are derived separately for each region and altitude layer, then combined to produce the three-dimensional lightning strike risk degree. This segmentation allows complex three-dimensional analysis to be performed through systematic regional and vertical decomposition.
Solution Approach 2:
The system uses existing meteorological radar data and meteorological observation device data for multiple purposes: deriving echo intensity distribution, deriving air temperature distribution, and ultimately deriving lightning strike risk degree. This multi-functional utilization of existing data sources reduces the need for additional specialized equipment while achieving three-dimensional risk evaluation.
3Measurement precision
If altitude distribution of echo intensity and air temperature is derived, then three-dimensional risk assessment is achieved, but data processing complexity increases
Solution Approach 1:
The patent performs preliminary derivation of altitude distribution of echo intensity and air temperature before calculating the lightning strike risk degree. By pre-processing the meteorological data to obtain these altitude distributions, the subsequent risk calculation can focus on combining these pre-derived components, thereby simplifying the overall data processing workflow while achieving three-dimensional precision.
Data Source
AI summary
The lightning strike risk degree derivation device comprises: an echo intensity derivation unit that derives an altitude distribution of echo intensity in a predetermined altitude range for each of the plurality of regions using observation data acquired from meteorological radar; an air temperature derivation unit that derives an altitude distribution of air temperature in the predetermined altitude range for each of the plurality of regions using observation data acquired from a meteorological observation device; a feature amount derivation unit that derives a feature amount to be used to derive a lightning strike risk degree; and a lightning strike risk degree derivation unit that derives the lightning strike risk degree using the feature amount.