Results show that the annual hail days in China decreased apparently in recent 30 years,and hails occur more frequently in the Tibetan Plateau with annual hail days more than 10 days.

Modifications were applied to the profiler parameters such as slant,altitude of 0℃ and-20 ℃,and the thresholds of POH,to study the change of 20 km/30km wind profile,hail index after the modifications.

By means of the CINRAD/CD and WSR-88D hail indexes,the hail data from January 2005 to August 2007 is analyzed.

Aerocraft is easy to impact with hailstone and may cause serious damages during its flight,so it′s necessary to investigate hail impact on aerocraft by trial system.

The methods of speedup are proposed under the limitation of the strength of hailstone pill.

The hailstone impacting test system is constructed basing on the theory of air gun which energy is offered by compressed air.

Statistical Analysis on Hail Disaster of Zhaoyuan City;

Climate Characters and Prediction on Hail Weather in Haiyan;

The effects of freeze and hail condition on biochemistry and physiology of tea tree;

Mechanism Analysis of a Severe Hailstorm Process in Guangxi;

Echo characteristics,circulation background and environment variables during a hailstorm in Akesu were analyzed by using basic CINRAD/CC data and its production.

The hailstorm occurred on July 6 to 8,2003 over the northeast of Qinghai-Xizang plateau was simulated by using MM5,and its meso-scale circulation background and local convective cells characteristics were analyzed based on simulated data.