HILITE 2013

Modern ground based instruments for the study of cosmic rays at high energy using fluorescence light (the Pierre Auger Observatory and Telescope Array), and TeV gamma telescopes using Cherenkov light (MAGIC, HESS), can detect and study Transient Luminous Events (TLEs) as well as the continuum light emission (airglow) from the high atmosphere. At the same time, satellite missions such as AGILE and FERMI can detect gamma and positron emission from thunderstorms , opening new interesting questions on the potential of our atmosphere to accelerate charged particles. This interdisciplinary workshop is meant to intensify the exchange of information between the astroparticle physics community and the geophysics community, on the phenomenology of atmospheric phenomena occurring between 15 and 100 km of altitude, a region which includes the stratosphere and the mesosphere. This region was nicknamed 'ignorosphere', before year 2000, but in recent years the modeling of stratospheric phenomena is playing an important role in our understanding of earth climate. HILITE 2013 is a follow up of the workshop "Interdisciplinary Science at Auger Observatory" (Cambridge , April 2011), and focuses on the long standing issue of correlation between cosmic rays and lightning, as well as the new perspectives opened by present and future astroparticle physics experiments.