{"id":1519,"date":"2014-11-21T07:37:48","date_gmt":"2014-11-21T07:37:48","guid":{"rendered":"http:\/\/\/wpweb\/?page_id=1519"},"modified":"2020-10-15T10:10:02","modified_gmt":"2020-10-15T10:10:02","slug":"els-halos-corones-i-fenomens-associats","status":"publish","type":"page","link":"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/observadors-meteorologics\/manual-de-lobservador\/fenomens-optics\/els-halos-corones-i-fenomens-associats\/","title":{"rendered":"Els halos, corones i fen\u00f2mens associats"},"content":{"rendered":"\n<p>En el quadre seg\u00fcent es fa un resum d\u2019aspectes que poden ajudar a identificar aquests fen\u00f2mens \u00f2ptics i, alhora, els g\u00e8neres de n\u00favols amb els quals es donen:\n\n<\/p>\n\n\n\n<table class=\"sortable uvi\" summary=\"halos\">\n<thead>\n<tr>\n<th class=\"w10\">Fenomen<\/th>\n<th class=\"w10\">Caracter\u00edstica<\/th>\n<th class=\"w10\">G\u00e8nere de n\u00favol en la qual \u00e9s habitual el fenomen<\/th>\n<th class=\"w10\">Altres g\u00e8neres de n\u00favols en els quals es pot trobar<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td rowspan=\"4\">Halo<\/td>\n<td>Es pot veure en n\u00favols constitu\u00efts per cristalls de gla\u00e7, mai per gotes d&#8217;aigua.<\/td>\n<td rowspan=\"4\">Cirrostrats<\/td>\n<td rowspan=\"4\">Cirrus i estrats prims (en aquests \u00faltims amb temperatures baixes)<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>La seva mida \u00e9s sempre la mateixa<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>L&#8217;habitual t\u00e9 una amplada de 22\u00ba. Sovint n\u2019hi ha un segon de 46\u00ba de radi, conc\u00e8ntric del primer<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>El contorn de l&#8217;halo sempre est\u00e0 ben definit<\/td>\n<\/tr>\n<tr class=\"even\">\n<td rowspan=\"3\">Corona<\/td>\n<td>Sempre visibles en n\u00favols formats per gotes d&#8217;aigua l\u00edquida<\/td>\n<td rowspan=\"3\">Altoc\u00famuls<\/td>\n<td rowspan=\"3\">Altostrats, estrats i cirroc\u00famuls<\/td>\n<\/tr>\n<tr class=\"even\">\n<td>Molt m\u00e9s petits que l&#8217;halo, no arriben ni a la meitat de radi.<\/td>\n<\/tr>\n<tr class=\"even\">\n<td>El contorn sovint \u00e9s molt dif\u00fas<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td rowspan=\"2\">Irisaci\u00f3<\/td>\n<td rowspan=\"2\">&nbsp;Visible en n\u00favols cumuliformes<\/td>\n<td>Cirroc\u00famuls<\/td>\n<td rowspan=\"2\">Rarament en Estratoc\u00famuls molt prims<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>Altoc\u00famuls, en les vores m\u00e9s primes<\/td>\n<\/tr>\n<tr class=\"even\">\n<td>Parheli<\/td>\n<td>Associat a l&#8217;halo<\/td>\n<td>Cirrostrats<\/td>\n<td>Altoc\u00famuls<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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_474285615022712_00.jpg\"><img loading=\"lazy\" width=\"700\" height=\"415\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/21084223\/BIG_474285615022712_00.jpg\" alt=\"Parheli i halo solar\" class=\"wp-image-2960\"\/><\/a><figcaption>Fen\u00f2mens \u00f2ptics Parheli i halo solar. Autor: Sergi Corral<\/figcaption><\/figure><\/div>\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_006295615022712_00.jpg\"><img loading=\"lazy\" width=\"700\" height=\"526\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/21084223\/BIG_006295615022712_00.jpg\" alt=\"Corona solar.\" class=\"wp-image-2959\"\/><\/a><figcaption>Corona solar. Autor Carles Illa<\/figcaption><\/figure><\/div>\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_553295615022712_00.jpg\"><img loading=\"lazy\" width=\"700\" height=\"526\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/21084223\/BIG_553295615022712_00.jpg\" alt=\"Irisacions\" class=\"wp-image-2961\"\/><\/a><figcaption>Fen\u00f2mens \u00f2ptics Irisacions. Autor: Alfred Marin\u00e9<\/figcaption><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>En el quadre seg\u00fcent es fa un resum d\u2019aspectes que poden ajudar a identificar aquests fen\u00f2mens \u00f2ptics i, alhora, els g\u00e8neres de n\u00favols amb els quals es donen: Fenomen Caracter\u00edstica G\u00e8nere de n\u00favol en la qual \u00e9s habitual el fenomen Altres g\u00e8neres de n\u00favols en els quals es pot trobar Halo Es pot veure en [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":1207,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"template-sidebar.php","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\/1519"}],"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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/comments?post=1519"}],"version-history":[{"count":8,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1519\/revisions"}],"predecessor-version":[{"id":28921,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1519\/revisions\/28921"}],"up":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1207"}],"wp:attachment":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/media?parent=1519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}