{"id":1656,"date":"2014-11-21T09:12:48","date_gmt":"2014-11-21T09:12:48","guid":{"rendered":"http:\/\/\/wpweb\/?page_id=1656"},"modified":"2024-03-06T06:44:51","modified_gmt":"2024-03-06T06:44:51","slug":"st-estrats","status":"publish","type":"page","link":"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/observadors-meteorologics\/manual-de-lobservador\/generes-de-nuvols\/st-estrats\/","title":{"rendered":"St – Estratus"},"content":{"rendered":"\n

Definici\u00f3<\/h2>\n\n\n\n

Tipus de n\u00favols baixos que formen un mantell nuvol\u00f3s est\u00e8s i for\u00e7a uniforme, de color gris, que pot ocupar tot el cel.
<\/p>\n\n\n\n

Estan situats a poca altura del s\u00f2l, per\u00f2 mai en contacte, perqu\u00e8 aleshores es tracta d\u2019una boira<\/strong>.
<\/p>\n\n\n\n

De vegades, aquest mantell t\u00e9 per sota seu fragments de n\u00favols disposats ca\u00f2ticament anomenats fractoestratus<\/strong>.
<\/p>\n\n\n\n

Sovint, s\u2019originen en estratoc\u00famulus quan la seva superf\u00edcie inferior baixa en altura, perden el relleu i deixen d\u2019estar fragmentats per formar un tot uniforme.
<\/p>\n\n\n\n

Tamb\u00e9 es poden originar en boires enlairades quan avan\u00e7a el dia i la radiaci\u00f3 solar aconsegueix fer augmentar la temperatura i disminuir la humitat relativa.<\/p>\n\n\n\n

Consells per a l\u2019observaci\u00f3<\/h2>\n\n\n\n

Els estratus solen ser n\u00favols locals, formats pel refredament superficial i sovint no s\u2019associen amb d\u2019altres, per la qual cosa, quan s\u2019esvaeixen, s\u2019acostuma a veure el cel obert.
<\/p>\n\n\n\n

En la majoria dels casos, si hi ha estratus al cel, el vent est\u00e0 encalmat.
<\/p>\n\n\n\n

Es poden observar fen\u00f2mens de corones, per\u00f2 no difuminen la llum solar i nom\u00e9s permeten veure el disc.
<\/p>\n\n\n\n

S\u00f3n els n\u00favols amb la base m\u00e9s pr\u00f2xima a la superf\u00edcie.<\/p>\n\n\n\n

Fotografies<\/h2>\n\n\n\n
\"Estratus\"<\/a>
G\u00e8neres de n\u00favols Estratus. Autor: Josep Pareta<\/figcaption><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"

Definici\u00f3 Tipus de n\u00favols baixos que formen un mantell nuvol\u00f3s est\u00e8s i for\u00e7a uniforme, de color gris, que pot ocupar tot el cel. Estan situats a poca altura del s\u00f2l, per\u00f2 mai en contacte, perqu\u00e8 aleshores es tracta d\u2019una boira. De vegades, aquest mantell t\u00e9 per sota seu fragments de n\u00favols disposats ca\u00f2ticament anomenats fractoestratus. […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":1326,"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\/1656"}],"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=1656"}],"version-history":[{"count":6,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1656\/revisions"}],"predecessor-version":[{"id":39918,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1656\/revisions\/39918"}],"up":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1326"}],"wp:attachment":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/media?parent=1656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}