The Variation of Lightning Current Parameters with Altitude in Shandong Region

Abstract

Lightning current parameters is the basis of the transmission line design and transformation essential parameters of lightning location system somewhere in shandong area ground ground lightning information lack of height of the statistical properties, not situation, the analysis of the influence of altitude on lightning parameters using global digital elevation data filled in the lightning location data in the lack of information, analysis of the lightning current parameters and the relationship between the altitude in the region. The variation of lightning current amplitude, lightning return times, ground flash density and other factors with altitude is studied, and the variation law of lightning parameters in this area with altitude is obtained. When the altitude is 1200∼2000m and 2400∼3200m, the number of lightning return stroke fluctuates greatly. When the altitude is from 2000 to 2800m, the number of lightning return strokes increases with the increase of altitude. With the rise of altitude, the proportion of normal lightning flashes in total lightning flashes in shandong area has a tendency to increase gradually. Due to the shortcomings of the above three kinds of observation data, we try to learn from each other to better reflect the lightning activity rule in shandong more comprehensively, accurately and effectively, and to provide certain theoretical basis and help for lightning protection and disaster reduction work, providing reference for the design and lightning protection transformation of power grid in shandong.