Does Moment of Microphysics Parameterization Schemes Have Any Impact In Simulating The Lightning Events?
Abstract
Thunderstorms, the severe weather phenomena are usually associated with lightning, flash flood and hails. Improved forecasts of these extreme weather events would help to mitigate the socio-economic hazards and thus have significant societal benefits. In the present work, we have discussed the impact of microphysical parameterization schemes on the simulation of lightning events.. We have compared the performance of double and triple moment microphysics scheme in WRF model for the simulation of lightning events over Indian subcontinent. Moreover, we have selected several lightning storm events associated with extreme weather for the model simulation. The Lightning Potential Index (LPI) is computed for Morrison double moment and NTU-CLR triple moment microphysics schemes and compared with the Lightning Detection Network (LDN) observation. In most of the cases, the Morrison double moment is showing more LPI than CLR triple moment scheme. Both schemes also differ in simulating rainfall and other thermodynamical, dynamical and microphysical parameters in model. Our results shows that the simulation of characteristics of lightning events is sensitive to the choice of double moment or triple moment microphysical parameterization. Also, the understanding of the physical processes for the different storm combinations, such as lightning, lightning associated with cyclone and depression is performed in the study. The findings may reveal new insight on the relationships between depression, cyclones, and thunderstorms over Indian subcontinent.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2022
- Bibcode:
- 2022AGUFM.A45F..07M
- Keywords:
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- Lightning;
- Morrison Microphysics;
- NTU-CLR;
- Extreme Weather Simulation;
- WRF