S.4.2 Low cost sensor for measuring keraunic index and lightning density in the Amazon Region

Low cost sensor for measuring keraunic index and lightning density in the Amazon Region Adonis Ferreira Raiol Leal UNIVERSIDADE FEDERAL DO PARA Belem, Brasil adonisleal1@hotmail.com Brigida Ramati Pereira da Rocha SIPAM Belem, Brasil brigida.rocha@sipam.gov.br Abstract—The keraunic index indicates the number of thunderstorm days per year in a given region. The registration can be obtained from organizations responsible for the monitoring the national territory for the incidence of lightning. This index is used by Brazilian standards to assist in the design of systems for lightning protection (SPDA) NBR-5419. It is essential for risk analysis involving lightning. Another important parameter is the lightning density (lightning per square kilometer/year). To establish a good mapping of keraunic index and lightning density in the Amazon Region it is necessary a great number of sensors. In order to measure lightning automatically we propose a prototype sensor for measuring the keraunic index autonomously. The sensor will measure the amount of lightning in a particular region during the interval of one year, and determine how many days of the year lightning occurred. Basically the