AtmoHEAD 2018

Session

Transient Luminous Events and General Topics in Atmospheric Electricity

Sep 26, 2018, 9:30 AM

Villa Orlandi

Conveners

Transient Luminous Events and General Topics in Atmospheric Electricity

• Roberto Mussa (TO)

Transient Luminous Events and General Topics in Atmospheric Electricity

• Ashot Chilingarian (Yerevan Physics Institute)

22. Influence of Atmospheric Electricity on the recovered parameters of primary cosmic rays

Prof. Ashot Chilingaryan (Yerevan Physics Institute)

9/26/18, 9:30 AM

The problem of thundercloud electrification is of the most difficult ones in the atmospheric physics. The structure of electric fields in the cloud escapes from the detailed in situ measurements; few balloon flights revealed rather complicated structure that is much more sophisticated than a simple dipole or tripole models. To get insight into the problem of charge structure of thundercloud we...

4. Ground-Based Observations of Terrestrial Gamma Ray Flashes Associated with Downward-Directed Lightning Leaders

Prof. Rasha Abbasi (University of Utah)

9/26/18, 10:00 AM

Terrestrial gamma-ray flashes (TGFs) are bursts of gamma-rays initiated in the Earth's atmosphere. TGFs were serendipitously first observed over twenty years ago by the BATSE gamma ray satellite experiment. Since then, several satellite experiments have shown that TGFs are produced in the upward negative breakdown stage at the start of intracloud lightning discharges. In this talk, we present...

5. The Observation of lightning-related events with the Surface Detector of the Pierre Auger Observatory.

Roberta Colalillo (NA)

9/26/18, 10:30 AM

The Pierre Auger Observatory, designed to detect ultra high energy cosmic rays, can be a valid instrument at ground to study phenomena related to the atmospheric electricity. The fluorescence detector is a powerful instrument to observe elves thanks to its excellent time resolution, while peculiar events with a large number of triggered stations have been recorded by the surface detector. The...

19. ELVES at the Pierre Auger Observatory

Roberto Mussa (TO)

9/26/18, 11:30 AM

Since 2013, the Pierre Auger Observatory, located in Malargue (Argentina), has implemented a dedicated trigger for the study of transient luminous emissions from the base of the ionosphere. These phenomena, called ELVES, are due to the de-excitation of the nitrogen molecules after the passage of the electromagnetic pulses produced by strong lightning activity. A significant fraction of the...

2. Propagation and R.F. Emission Patterns of Lightning Leaders as Observed by the LOFAR Radio Telescope

Dr Brian Hare (University of Groningen)

9/26/18, 12:00 PM

LOFAR (LOw Frequency ARray) is a radio telescope that consists of a large number of dual-polarized antennas spread over the northern Netherlands and beyond. The LOFAR for Lightning Imaging project (LOFAR-LIM) has successfully used LOFAR to map out lightning in the Netherlands. Since LOFAR covers a large frequency range (10-90 MHz), has antennas spread over a large area, and saves the raw trace...

9. On The Importance Of The Electrical And High-Energy Processes Monitoring In Troposphere

Dr Arsen Ghalumyan (A. Alikhanian National Laboratory (Yerevan Physics Institute), Armenia, 0036, Alikhanian Br. Str. 2)

9/26/18, 12:30 PM

The upcoming Cherenkov Telescope Array (CTA) project is expected to provide unprecedented sensitivity in the low-energy (<~100 GeV) range for Cherenkov telescopes. In order to fully exploit the potential of the telescope systems it is meaningful to look for ways to further improve the available analysis methods and include possible biasness of the Cherenkov images due to the...