5:15 PM - 6:30 PM
[HDS07-P05] Study on early detection of thunderstorm based on electromagnetic measurement in ELF-VLF band
In this presentation, lightning observation for thundercloud generated above Ebina city, Kanagawa at September 6th, 2014 is summarized as an initial result. First detection of lightning signal in ELF-VLF observation is 30 minutes earlier than that in existing network for observation of cloud-to-ground (CG) lightning discharge. This result indicates the possibility that not only CG lightning discharge but also intracloud (IC) lightning discharge whose electromagnetic radiation is weaker than that from CG could be detected by our network. The IC lightning dominated over CG lightning in the early stages of thunderstorm. Detection of IC in ELF-VLF observation enables us to monitor thunderstorm generation without high-spatial density observation.