Brasil - undefined·27 de setembro de 2017

Brasil é líder mundial na incidência de raios

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mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} </style> <![endif]--></p><p class="MsoNormal" style="text-align:center;line-height:150%" align="center"><span style="font-size: small;"><i style="mso-bidi-font-style:normal"><span style="font-family: &quot;Arial&quot;,&quot;sans-serif&quot;;">As esta&ccedil;&otilde;es que mais concentram as descargas de rel&acirc;mpagos s&atilde;o o Ver&atilde;o e a Primavera </span></i></span></p><p>&nbsp;</p>

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JORNAL DIGITAL PARA COMUNICADORES

O conteúdo que vai ao ar começa aqui.

Áudios, textos e roteiros produzidos todos os dias para rádios e mídias online regionais. Gratuito. Pronto para usar. Em todos os 27 estados. São 25 anos ao lado de quem comunica o Brasil.

Em nenhuma parte do mundo cai tanto raio como aqui no Brasil. De acordo com o Grupo de Eletricidade Atmosférica do Instituto Nacional de Pesquisas Espaciais, nos últimos seis anos, o país registrou, em média, 77,8 milhões raios por ano, nos tornando líder mundial na incidência de raios. As estações que mais concentram as descargas de relâmpagos são o Verão (43%) e a Primavera (33%). Por isto, a população deve ficar alerta, afinal, é nessa época que se concentram 90% dos casos registrados ao longo do ano. Isto ocorre por conta do choque de massas de ar com temperaturas diferentes.

A cada ano, em média, 300 pessoas são atingidas por raios no Brasil, das quais 100 morrem. Para monitorar a ocorrência do fenômeno em todo o território brasileiro, foi desenvolvido uma rede de sensores chamada Rede BrasilDAT. Além de detectar cerca de 99% das tempestades que ocorrem no país, a rede tem uma base de dados de raios que permite esclarecer a causa da maior parte dos eventos associados a eles. Quem dá mais detalhes do levantamento é o coordenador do Grupo de Eletricidade Atmosférica, Osmar Pinto Júnior.

"O levantamento anterior, feito em 2002, era fundamentalmente baseado em satélite. O novo levantamento, passado 15 anos, é muito mais preciso e trás informações mais detalhadas da incidência de raios em todo o país. Em 2012 nós tivemos 94 milhões de raios no Brasil. Em 2016, 57 milhões. Então os raios variam e variam de forma significativa de um ano para o outro em nosso país e o responsável por isto são os fenômenos El Niño e La Niña."

O levantamento aponta que o Estado com maior densidade de raios é Tocantins, com 17,1 raios por quilômetro quadrado. Em seguida vêm Amazonas (15,8), Acre (15,8), Maranhão (13,3), Pará (12,4), Rondônia (11,4), Mato Grosso (11,1), Roraima (7,9), Piauí (7,7) e São Paulo (5,2). Já a cidade de Santa Maria das Barreiras, no Pará, registra um índice de 44 raios por quilômetro quadrado por ano e carrega o título de município com maior densidade de raios do país.

Para se proteger dos raios durante uma tempestade, não use o telefone com fio ou celular enquanto estiver carregando, não fique próximo a tomadas, janelas e portas metálicas. Se estiver ao livre, preste atenção na chegada de tempestades e busque um abrigo, seja em um residência ou dentro de um carro fechado.

Reportagem, Cintia Moreira.
 

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