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Jafar Sepehril, Parisa Zareie Z
The paper is about a micro scale electrical discharge a phenomenon that is happens in ionized clouds at 3000-4500 meters in Iranian Mountains. We named this phenomena “Micro Thunder” in this paper. To identify the ionized clouds which have enough electricity to cause this condition, we developed an ozone sensor circuit and put it in a test field near a spring that is famous for this danger and has claimed victims before. An increasing amount of ozone warns climbers the micro thunder is going to happen.