Research on Lightning Warning Method in Liangshan Prefecture

In this paper,based on the data of surface electric field in Liangshan Prefecture from 2014 to 2015,using threshold early warning method of electric field and polar jump warning method of electric field to analysis the effectiveness of lightning warning.Combining the two methods,we choose two parameters of electric field intensity E and electric field rate △E to determination threshold in rainy season and non-rainy season and test the effectiveness of early warning.The results show that the warning threshold of ground electric field is different in different seasons and combining the warning threshold of E and △E can increase the warning effectiveness a little.