University of Groningen Atmospheric electric fields during thunderstorm conditions measured by LOFAR Trinh, Thi Ngoc Gia

University of Groningen

Atmospheric electric fields during thunderstorm conditions measured by LOFAR

Trinh, Thi Ngoc Gia

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Publication date: 2018

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Trinh, T. N. G. (2018). Atmospheric electric fields during thunderstorm conditions measured by LOFAR. University of Groningen.

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Stellingen

Atmospheric electric fields during

thunderstorm conditions measured by

LOFAR

Thi Ngoc Gia Trinh

1. Strong atmospheric electric fields, even if they are not strong enough to generate lightning activity, have significant influ-ences on both intensity and polarizations of radio emission from extensive air showers.

2. Measuring radio emission from extensive air showers is a non-intrusive method to determine electric fields in clouds. 3. In contrast to fair-weather events, linear and circular po-larizations play an essential role in data analysis of radio emission from extensive air showers in the presence of at-mospheric electric fields.

4. Main features seen in the intensity and polarization pat-terns of the analyzed "thunderstorm" events can be recon-structed by a three-layered electric field.

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