{"id":1621,"date":"2014-11-21T08:52:54","date_gmt":"2014-11-21T08:52:54","guid":{"rendered":"http:\/\/\/wpweb\/?page_id=1621"},"modified":"2020-10-15T09:11:25","modified_gmt":"2020-10-15T09:11:25","slug":"foc-de-sant-elm","status":"publish","type":"page","link":"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/observadors-meteorologics\/manual-de-lobservador\/meteors-relacionats-amb-la-precipitacio\/foc-de-sant-elm\/","title":{"rendered":"Foc de Sant Elm"},"content":{"rendered":"\n<h2>Definici\u00f3<\/h2>\n\n\n\n<p>Desc\u00e0rrega el\u00e8ctrica lluminosa que t\u00e9 lloc a l\u2019atmosfera, \u00e9s d\u2019intensitat feble o moderada i emana d\u2019objectes situats elevats a la superf\u00edcie (parallamps, pals de vaixells, antenes) o directament enlairats (ales d\u2019avions). Aquesta desc\u00e0rrega pot durar un temps.<br><\/p>\n\n\n\n<p>El fenomen s\u2019observa quan el camp el\u00e8ctric en les proximitats de la superf\u00edcie dels objectes \u00e9s for\u00e7a intens i es pot veure que s\u2019origina en qualsevol aresta o element sortint dels edificis.<br><\/p>\n\n\n\n<p>Es manifesten com a plomalls acolorits, molt m\u00e9s grans quan l\u2019electricitat \u00e9s positiva, que quan \u00e9s negativa.<\/p>\n\n\n\n<h2>Consells per a l\u2019observaci\u00f3<\/h2>\n\n\n\n<p>S\u2019observa principalment a l\u2019hivern, en nits de tempesta, i s\u00f3n m\u00e9s freq\u00fcents als cims de les muntanyes.<br><\/p>\n\n\n\n<p>Si es presenta en un sol plomall llumin\u00f3s rep el nom d\u2019<strong>helena<\/strong>.<br><\/p>\n\n\n\n<p>Quan els n\u00favols s\u00f3n a molt poca al\u00e7ada, va acompanyat d\u2019un so d\u2019espurneig.<\/p>\n\n\n\n<h2>Fotografies<\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/21084223\/BIG_568465615022712_00.jpg\"><img loading=\"lazy\" width=\"700\" height=\"522\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/21084223\/BIG_568465615022712_00.jpg\" alt=\"Foc de Sant Elm\" class=\"wp-image-2954\"\/><\/a><figcaption>Meteors relacionats amb la precipitaci\u00f3 Foc de Sant Elm. Autor: David Jessop<\/figcaption><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Definici\u00f3 Desc\u00e0rrega el\u00e8ctrica lluminosa que t\u00e9 lloc a l\u2019atmosfera, \u00e9s d\u2019intensitat feble o moderada i emana d\u2019objectes situats elevats a la superf\u00edcie (parallamps, pals de vaixells, antenes) o directament enlairats (ales d\u2019avions). Aquesta desc\u00e0rrega pot durar un temps. El fenomen s\u2019observa quan el camp el\u00e8ctric en les proximitats de la superf\u00edcie dels objectes \u00e9s for\u00e7a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":1261,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"_links":{"self":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1621"}],"collection":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/comments?post=1621"}],"version-history":[{"count":4,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1621\/revisions"}],"predecessor-version":[{"id":28888,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1621\/revisions\/28888"}],"up":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1261"}],"wp:attachment":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/media?parent=1621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}