{"id":1813,"date":"2014-11-25T11:08:43","date_gmt":"2014-11-25T11:08:43","guid":{"rendered":"http:\/\/\/wpweb\/?page_id=1813"},"modified":"2022-04-21T10:55:57","modified_gmt":"2022-04-21T10:55:57","slug":"xarxa-destacions-meteorologiques-automatiques-xema","status":"publish","type":"page","link":"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/estacions-meteorologiques-automatiques\/xarxa-destacions-meteorologiques-automatiques-xema\/","title":{"rendered":"Xarxa d&#8217;Estacions Meteorol\u00f2giques Autom\u00e0tiques (XEMA)"},"content":{"rendered":"\n<p>La <b>XEMA<\/b> \u00e9s la Xarxa d&#8217;Estacions Meteorol\u00f2giques Autom\u00e0tiques que gestiona el Servei Meteorol\u00f2gic de Catalunya (SMC), i que est\u00e0 integrada a la Xarxa d&#8217;Equipaments Meteorol\u00f2gics de la Generalitat de Catalunya (Xemec), creada per la Llei 15\/2001, de 14 de novembre, de meteorologia.<\/p>\n\n\n\n<p>La XEMA es composa actualment (desembre 2017) per un total de <strong>186 Estacions Meteorol\u00f2giques Autom\u00e0tiques<\/strong> (EMA), que transmeten la informaci\u00f3 al SMC a trav\u00e9s de r\u00e0dio digital, tecnologia GSM o sat\u00e8l\u00b7lit.<\/p>\n\n\n\n<p>La difer\u00e8ncia fonamental entre totes les EMA \u00e9s l&#8217;altura en la qual es mesura el vent, at\u00e8s que, segons el seu empla\u00e7ament i la seva aplicaci\u00f3, l&#8217;anem\u00f2metre i el penell poden estar situats a 2, a 6 o a 10 metres d&#8217;altura. Aquesta altura en la qual es mesura el vent apareix a la fitxa de cada estaci\u00f3. Des del punt de vista meteorol\u00f2gic, l&#8217;altura recomanable per mesurar el vent \u00e9s de 10 metres, i el motiu principal per mesurar-lo a 2 o a 6 metres \u00e9s la necessitat de con\u00e8ixer el valor del vent a aquestes altures per a diferents aplicacions concretes com s\u00f3n el c\u00e0lcul del risc d&#8217;incendis forestals o el c\u00e0lcul de l&#8217;evapotranspiraci\u00f3 de refer\u00e8ncia, entre d&#8217;altres.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Sant Pere Pescador<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA1.jpg\"><img loading=\"lazy\" width=\"400\" height=\"299\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA1.jpg\" alt=\"EMA Sant Pere Pescador\" class=\"wp-image-2223\"\/><\/a><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Certascan<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA2.jpg\"><img loading=\"lazy\" width=\"400\" height=\"300\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA2.jpg\" alt=\"EMA Alta muntanya Certascan\" class=\"wp-image-2224\"\/><\/a><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Amposta<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"390\" height=\"522\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA3.jpg\" alt=\"EMA Amposta\" class=\"wp-image-2225\"\/><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Guardiola de Bergued\u00e0<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA4.jpg\"><img loading=\"lazy\" width=\"391\" height=\"521\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2014\/11\/25110843\/XEMA4.jpg\" alt=\"EMA Guardiola de Bergued\u00e0\" class=\"wp-image-2227\"\/><\/a><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<ul class=\"parent-page-menu\"><li class=\"page_item page-item-1822\"><a href=\"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/estacions-meteorologiques-automatiques\/xarxa-destacions-meteorologiques-automatiques-xema\/antecedents\/\">Antecedents<\/a><\/li>\n<li class=\"page_item page-item-1824\"><a href=\"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/estacions-meteorologiques-automatiques\/xarxa-destacions-meteorologiques-automatiques-xema\/els-sensors\/\">Els sensors<\/a><\/li>\n<li class=\"page_item page-item-1826 page_item_has_children\"><a href=\"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/estacions-meteorologiques-automatiques\/xarxa-destacions-meteorologiques-automatiques-xema\/informacio-sobre-les-dades-meteorologiques-de-les-ema-que-es-mostren-al-web\/\">Informaci\u00f3 sobre les dades meteorol\u00f2giques de les EMA que es mostren al web<\/a>\n<ul class='children'>\n\t<li class=\"page_item page-item-637\"><a href=\"https:\/\/www.meteo.cat\/wpweb\/divulgacio\/equipaments-meteorologics\/estacions-meteorologiques-automatiques\/xarxa-destacions-meteorologiques-automatiques-xema\/informacio-sobre-les-dades-meteorologiques-de-les-ema-que-es-mostren-al-web\/reduccio-de-la-pressio-atmosferica-a-un-nivell-de-referencia\/\">Reducci\u00f3 de la pressi\u00f3 atmosf\u00e8rica a un nivell de refer\u00e8ncia<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"icon-link-arrow\"><a href=\"https:\/\/www.meteo.cat\/observacions\/llistat-xema\">Llistat d&#8217;estacions autom\u00e0tiques<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La XEMA \u00e9s la Xarxa d&#8217;Estacions Meteorol\u00f2giques Autom\u00e0tiques que gestiona el Servei Meteorol\u00f2gic de Catalunya (SMC), i que est\u00e0 integrada a la Xarxa d&#8217;Equipaments Meteorol\u00f2gics de la Generalitat de Catalunya (Xemec), creada per la Llei 15\/2001, de 14 de novembre, de meteorologia. La XEMA es composa actualment (desembre 2017) per un total de 186 Estacions [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":142,"menu_order":3,"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\/1813"}],"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=1813"}],"version-history":[{"count":13,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1813\/revisions"}],"predecessor-version":[{"id":34192,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/1813\/revisions\/34192"}],"up":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/142"}],"wp:attachment":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/media?parent=1813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}