In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
Atmospheric electricity: TLEs, TGFs and their observation from space and ground1h
The atmosphere is never quite neutral due to thunderstorms, which create lightning bolts to rapidly discharge huge amounts of atmospheric charge stored in thunderclouds, and due to ionization from cosmic rays and natural radioactivity. Therefore, in the atmosphere, and in particular in thunderclouds, not negligible electric fields are present. Terrestrial gamma-ray flashes (TGFs) are transient gamma-ray emissions generated by electrons accelerated to relativistic energies in electric fields. The Transient Luminous Events (TLEs) are short-lived electrical-breakdown phenomena which occur well above the altitudes of normal lightning and cumulonimbus clouds. Elves, an example of TLEs, are ultraviolet and optical emissions excited in the lower ionosphere by electromagnetic waves radiated from lightning current pulses. In this talk, we will review the experimental evidence of these phenomena and in particular their study at the Pierre Auger Observatory. Finally, we will discuss the possible effects that atmospheric electricity can have on the detection of cosmic rays.
(University of Napoli “Federico II”)