Page 213 - Contributed Paper Session (CPS) - Volume 1

CPS1282 Liu J. et al.
prediction of lightning. When lightning disasters occur, it will inevitably cause
damage to various industries and personnel in Hohhot. Therefore, the analysis
of lightning disaster factors and the study of spatial distribution characteristics
are of great significance to improve the pertinence and efficiency of lightning
protection and disaster reduction strategies in Hohhot

2. Analysis of lighting risk factors in Hohhot
2.1.Materials and methods
This paper selects data from three aspects: meteorology, geography and
social economy. Based on the risk system theory, this paper divides the
lightning disaster risk evaluation system into three levels, as shown in figure 1:

FIG. 1 structure diagram of lightning disaster risk evaluation index system

It can be seen from FIG. 1 that, when the lightning disaster risk index (LDRI)
is determined according to the lightning disaster risk evaluation index system,
the natural breakpoint analysis function in GIS software is used to classify the
regions under the jurisdiction of Hohhot according to the extremely high, high
and general three lightning disaster risk levels.

2.2 analysis of lightning risk factors in Hohhot
2.2.1 risk analysis of disaster-causing factors

(1) ground flash density
①Divide the administrative area of Hohhot city, create grid elements
according to the "data management" function of GIS software, and divide the
whole area according to 3000m units, as shown in figure 2.

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