New lightning imaging method using adaptive sensing and its application for local severe phenomena

2016 Fiscal Year Final Research Report

• Project/Area Number: 26750138
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Natural disaster / Disaster prevention science
• Research Institution: Japan, Meteorological Research Institute
• Principal Investigator: Yoshida Satoru 気象庁気象研究所, 気象衛星・観測システム研究部, 主任研究官 (00571564)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 雷放電 / 電磁波リモートセンシング / 適応信号処理

Outline of Final Research Achievements

We proposed a new method for lightning imaging using the latest adaptive sensing technique. We confirmed that the new method estimates lightning current distribution more effectively than the convectional method based on simulation and data analysis of lightning discharges. Furthermore, we performed observation data analysis for understanding relationship between lightning activity and thunderstorm kinetics. In the analysis, we showed an increase of lightning activity when updraft in the thunderstorm became strong. Since strong updraft sometimes cases local severe rains, these results contribute to development of forecasting of local severe rains.

Free Research Field

リモートセンシング、気象