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Date: 03/12 (Thu)
Time: 14:45-16:30
Place: telework
Speaker: "Karin Niino"

Title:
"The Estimation of lightning altitude and electric charge to observe at multiple points quasi-electrostatic field"

Abstract:
"Intense weather disturbances associated with developed cumulonimbus, such as heavy rain and lightning, is closely related to serious social problems, such as recent disasters.
Because of that,it is very important to grasp and predict their development and activities in the future.
Intense weather disturbances are often caused by rapidly developing cumulonimbus clouds, but in order to observe them, it is important to establish observation equipment and networks with higher temporal and spatial resolution.
In addition, it was found that there was a high correlation between the distribution of lightning and the distribution of precipitation, and the relationship between precipitation and lightning frequency.(Onishi 2015)
If it becomes possible to stably observe changes in charge during a lightning, this theory can be supported more reliably.

The purpose of this study is to estimate the amount of charge and the location of lightning that fluctuates due to lightning phenomena and moves in clouds by simultaneously observing lightning at multiple points. It is also to clarify the relationship between them and the cumulonimbus intensity.
In this study, it is assumed that the data of P-POTEKA, an observation instrument used in the SATREPS project, is used.
Based on the formulas and simulation examples established by Noguchi's thesis
 (2019), we establish a program to actually calculate and discuss the simulation results of the calculation."

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