2020 Workshop:Atmospheric Electricity

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Thunderstorm Effects in the near-Earth Space

Location, Date/Time and Duration

2 hours

Conveners

Yen-Jung Wu
Erin Lay

Workshop Categories

Altitudes: MLT - Latitudes: global - Other:

Format of the Workshop

Short Presentations

Estimated attendance

20

Requested Specific Days

None

Special technology requests

None

Justification

The thundercloud is one of the most eye-catching meteorological phenomena to human beings in the lower atmosphere. It is not only directly related to our daily life and the safety of the environment we inhabit but also serves as the bridge for energy transfer from the lower atmosphere to the higher atmosphere. Thunderstorms interact with the ionosphere both kinetically and electromagnetically. The strong upwelling in moist convective systems transports the momentum via gravity waves , while the intense current carried by lightning modifies the electromagnetic environment above the thundercloud and results in variations in ionization and conductivity at the D region ionosphere. Relevant topics for this session include lightning and the electromagnetic signature that induce perturbations in the ionosphere, transient luminous events and the modulation in the lower ionosphere, and the thunderstorm-associated energetic radiation such as terrestrial gamma ray and their interaction with the terrestrial environment. The session is targeting the CEDAR Strategic Thrust #1: Encourage and Undertake a Systems Perspective to Geospace, with the particular focus on exploring system characteristics of the space-atmosphere interaction region in terms of nonlinearities, preconditioning and memory, feedback, instabilities, emergent behavior, and cross-scale coupling. Investigation of the link between the weather in the lower atmosphere and the space weather has become popular lately, and this session will provide a platform for the CEDAR community to discuss influences from the surface of the Earth to the ionosphere.

Description

The session will adopt the regular short presentation format. We welcome contributions in all experimental, theoretical, and observational aspects of investigations connected with thunderstorms and their effects on the ionosphere. Three main categories should be considered: 1. Lightning and the electromagnetic signature of the perturbation in the ionosphere. 2. Transient luminous events (TLEs) and field-induced perturbations on properties of the upper atmosphere such as ionization and conductivity. 3. Terrestrial gamma-ray flashes (TGFs) and other thunderstorm-associated energetic radiation

Workshop Summary

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