Measurements and Analysis of Terrestrial Gamma-Ray Flashes (TGFs) within China

Terrestrial gamma-ray flashes (TGFs) are impulsive (~1 ms) but intense sources of gamma-rays associated with lightning activity and thunderstorms. Till now, few observation/study for those TGFs occurred in China are carried out. From June 2013, we started to install high sensitivity magnetic sensors in China and collected the lightning waveforms and other data related with TGF that detected by Fermi. Here we mainly introduce one special TGF occurred in South China which had three-station magnetic recordings. The results show that the TGF-related sferic is an energetic in-cloud pulse (EIP), with high current of 204.5 kA and the altitude at about 10 km. The characteristics of TGF parent thunderstorm are also discussed with comprehensive data of weather radar, Black Body Temperature (TBB), lightning location and weather sounding.