{"id":1622,"date":"2017-05-18T08:08:44","date_gmt":"2017-05-18T07:08:44","guid":{"rendered":"http:\/\/staysafe.bazl.admin.ch\/?p=1622"},"modified":"2017-05-18T08:08:44","modified_gmt":"2017-05-18T07:08:44","slug":"was-ist-eine-konvergenzliniequest-ce-quune-ligne-de-convergence","status":"publish","type":"post","link":"https:\/\/staysafe.aero\/fr\/was-ist-eine-konvergenzliniequest-ce-quune-ligne-de-convergence\/","title":{"rendered":"Qu\u2019est-ce qu\u2019une ligne de convergence ?"},"content":{"rendered":"<p>Le symbole entour\u00e9 de rouge d\u00e9signe une ligne de convergence. Les lignes de convergence sont des zones o\u00f9 des masses d\u2019air convergent. \u00c0 la diff\u00e9rence du front, la ligne de convergence ne constitue pas une d\u00e9marcation entre masses d\u2019air, mais appara\u00eet \u00e0 l\u2019int\u00e9rieur d\u2019une masse d\u2019air plus ou moins homog\u00e8ne sans grands contrastes de temp\u00e9rature. Ce ph\u00e9nom\u00e8ne est caract\u00e9ris\u00e9 la plupart du temps par la convection (mouvement de l\u2019air vers le haut) r\u00e9sultant de la convergence (flux d\u2019air convergents).<\/p>\n<p>&nbsp;<\/p>\n<p>Les lignes de convergence apparaissent par exemple dans le secteur chaud en \u00e9t\u00e9 lorsque l\u2019air froid d\u2019altitude se situe \u00e0 l\u2019avant d\u2019un front froid. Il arrive alors fr\u00e9quemment que des orages violents \u00e9clatent \u00e0 l\u2019avant du front froid et forment parfois une ligne. En \u00e9t\u00e9, l\u2019activit\u00e9 orageuse dans la convergence est souvent plus intense que dans le front froid qui se trouve \u00e0 l\u2019arri\u00e8re.<\/p>\n<p>&nbsp;<\/p>\n<p>Sur la carte, la ligne de convergence se trouve \u00e0 l\u2019arri\u00e8re du front froid. Dans cette configuration, le creux barom\u00e9trique et l\u2019air froid d\u2019altitude sont \u00e0 l\u2019arri\u00e8re du front froid, ce qui entra\u00eene la formation d\u2019une convergence laquelle se traduit en g\u00e9n\u00e9ral par du mauvais temps accompagn\u00e9 parfois d\u2019une activit\u00e9 orageuse.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Le symbole entour\u00e9 de rouge d\u00e9signe une ligne de convergence. Les lignes de convergence sont des zones o\u00f9 des masses [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":1619,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[31,1],"tags":[197],"class_list":["post-1622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-operation","category-home-teaser","tag-meteo"],"_links":{"self":[{"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/posts\/1622","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/comments?post=1622"}],"version-history":[{"count":1,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/posts\/1622\/revisions"}],"predecessor-version":[{"id":1623,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/posts\/1622\/revisions\/1623"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/media\/1619"}],"wp:attachment":[{"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/media?parent=1622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/categories?post=1622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/staysafe.aero\/fr\/wp-json\/wp\/v2\/tags?post=1622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}