Hail is a kind of extreme weather that greatly damge of agricultural protection. Hail is a typical small-scale weather condition generated by severe convectional weather, and the knowledge of spatial-temporal and intensity of its generation is limited by the observation system damages agricultural production worldwide.
In Meteorology Research Institute, Faculty of Global Environmental Science,
The results showed that hails in the northern part of the peninsula are mainly distributed in the northern mountainous areas and the western plain area, and the average annual hailing days(AHD) in the above mentioned areas over were 2 days and 1 day, respectively.
The distribution of AHD takes a noticeable seasonal character: it is mainly concentrated in the northern and central mountainous areas in spring with the number of 0.6 days, in the northern mountainous areas in summer with the number of 0.7 days and in the western coastal area in autumn with the number of 0.6 days.
The research also analyzed the changing trend of the recent hail climate using Normalized Convective Available Potential Energy(NCAPE), Freezing Level Height (FLH), and Vertical Wind Shear (VWS) values calculated from aerological observation data in Pyongyang observation site. The results showed that the changing trend of FLH and VWS correspond to the change of hail climate, but the change of NCAPE tends to be inconsistent with the change of hail climate.
The reseach results were published in «Journal of Earth System Science» under the title of "Characteristics of hail climate distribution and changing trends over DPR Korea during 1981– 2020"(https://doi.org/10.1007/s12040-024-02262-x).
