{"id":36046,"date":"2022-11-18T12:19:25","date_gmt":"2022-11-18T12:19:25","guid":{"rendered":"https:\/\/www.meteo.cat\/wpweb\/?page_id=36046"},"modified":"2022-11-18T12:24:02","modified_gmt":"2022-11-18T12:24:02","slug":"idf-ebre-fabra-i-lestartit","status":"publish","type":"page","link":"https:\/\/www.meteo.cat\/wpweb\/climatologia\/dades-i-productes-climatics\/corbes-idf\/idf-ebre-fabra-i-lestartit\/","title":{"rendered":"IDF Ebre, Fabra i L\u2019Estartit"},"content":{"rendered":"\n<p>Per a cadascun dels observatoris es proporciona la corba generalitzada (segons l\u2019equaci\u00f3 de Sherman) i l\u2019equaci\u00f3 per a obtenir la intensitat (I) de la precipitaci\u00f3 (en mm\/minut), per a un per\u00edode de retorn donat (T) i per a una durada (t).<\/p>\n\n\n\n<p>Per exemple, pel cas de l\u2019Observatori de l\u2019Ebre i fent \u00fas de la f\u00f2rmula adjunta a la gr\u00e0fica, la intensitat de precipitaci\u00f3 m\u00e0xima esperada, per a un per\u00edode de retorn de 10 anys, i per una durada de 10 minuts seria de 2,08 mm\/min. En d\u2019altres paraules, un cop cada 10 anys a l\u2019Observatori de l\u2019Ebre es pot donar una intensitat de 20,8 mm en 10 minuts.<\/p>\n\n\n\n<form class=\"smc-combobox line\" name=\"jump2\" onsubmit=\"jsDropDown('cful','2016',this)\">\n<label for=\"var1\">Localitzaci\u00f3:<\/label>\n<select name=\"2016\" id=\"var1\">\n<option selected=\"selected\" value=\"05\/20094504\/Ebre_Sherman\">Observatori de l&#8217;Ebre<\/option>\n<option value=\"05\/23060055\/Fabra_Sherman\">Observatori Fabra<\/option><option value=\"05\/20094500\/Estartit_Sherman\">l&#8217;Estartit<\/option><\/select>\n<input type=\"submit\" value=\"Mostra imatge\" class=\"go\">\n<\/form>\n\n\n\n<img loading=\"lazy\" id=\"cful\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2016\/05\/20094504\/Ebre_Sherman.png\" alt=\"Imatge seleccionada\" width=\"650\" height=\"650\">\n\n\n\n<h2>Les dades usades<\/h2>\n\n\n\n<p>Dades digitalitzades procedents de les bandes di\u00e0ries dels seg\u00fcents pluvi\u00f2grafs:<\/p>\n\n\n\n<ul><li>Pluvi\u00f2graf de sif\u00f3 de l\u2019Observatori de l\u2019Ebre (1905-2003)<\/li><li>Pluvi\u00f2graf d\u2019intensitats Jard\u00ed de l\u2019Observatori Fabra (1927-1992)<\/li><li>Pluvi\u00f2graf de sif\u00f3 de l\u2019estaci\u00f3 meteorol\u00f2gica de l\u2019Estartit (1986-2006)<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><a href=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2016\/05\/20093146\/Banda_Pluviograf_Estartit.png\"><img loading=\"lazy\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2016\/05\/20093146\/Banda_Pluviograf_Estartit-1024x325.png\" alt=\"Banda Pluviograf Estartit\" class=\"wp-image-9602\" width=\"768\" height=\"244\"\/><\/a><figcaption>Exemple d&#8217;una banda di\u00e0ria de pluvi\u00f2graf de l&#8217;estaci\u00f3 de l&#8217;Estartit corresponent al 6 de gener de 1994<\/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\/2016\/05\/20093151\/pluviograf_Ebre.png\"><img loading=\"lazy\" width=\"224\" height=\"300\" src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2016\/05\/20093151\/pluviograf_Ebre-224x300.png\" alt=\"Pluvi\u00f2graf Obs Ebre per enregistrar la quantitat i intensitat de la pluja\" class=\"wp-image-9603\"\/><\/a><figcaption>Pluvi\u00f2graf de tipus sif\u00f3 Lambrecht instal\u00b7lat a l&#8217;Observatori de l&#8217;Ebre<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/static-m.meteo.cat\/wordpresswebpre\/wp-content\/uploads\/2022\/10\/25154355\/publiograf-jardi-Fabra-2004.jpg\"><img loading=\"lazy\" src=\"https:\/\/static-m.meteo.cat\/wordpresswebpre\/wp-content\/uploads\/2022\/10\/25154355\/publiograf-jardi-Fabra-2004.jpg\" alt=\"Vista de l'estaci\u00f3 meteorol\u00f2gica de l'observatori Fabra a Barcelona\" class=\"wp-image-31493\" width=\"340\" height=\"229\"\/><\/a><figcaption>Ubicaci\u00f3 del pluvi\u00f2graf Jard\u00ed a les instal\u00b7lacions del Observatori Fabra l\u2019any 2004<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/static-m.meteo.cat\/wordpresswebpre\/wp-content\/uploads\/2022\/10\/25154546\/pluviograf-THIES-Estartit.jpg\"><img loading=\"lazy\" src=\"https:\/\/static-m.meteo.cat\/wordpresswebpre\/wp-content\/uploads\/2022\/10\/25154546\/pluviograf-THIES-Estartit.jpg\" alt=\"Vita de l'interior del pluvi\u00f2graf per registrar intensitats de pluja a l'Estaci\u00f3 de l'Estartit.\" class=\"wp-image-31494\" width=\"238\" height=\"317\"\/><\/a><figcaption>Pluvi\u00f2graf Thies de l\u2019estaci\u00f3 de l\u2019Estartit<\/figcaption><\/figure><\/div>\n\n\n\n<h2>Metodologia<\/h2>\n\n\n\n<p>La metodologia es troba descrita en detall al treball <a href=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/2016\/05\/19134809\/IDF_NuriaPerezZanon.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><b>An\u00e0lisi de les intensitats m\u00e0ximes de precipitaci\u00f3 als Observatoris de l\u2019Ebre i Estartit. Corbes IDF<\/b><\/a> (P\u00e9rez, 2012).<\/p>\n\n\n\n<p>De cada font s\u2019obt\u00e9 la precipitaci\u00f3 m\u00e0xima enregistrada per a diferents durades predefinides (1, 5, 10, 50, 100, 500 i 1000 minuts). Les s\u00e8ries de dades obtingudes per a cada durada s\u00f3n estudiades estad\u00edsticament, determinant la distribuci\u00f3 de probabilitat i els par\u00e0metres que representen a la mostra. Com que el per\u00edode de retorn T \u00e9s el temps de recurr\u00e8ncia mitj\u00e0 entre esdeveniments que igualen o superen una magnitud, es pot relacionar la intensitat de la precipitaci\u00f3 amb la freq\u00fc\u00e8ncia d\u2019ocurr\u00e8ncia per a cada durada. Aix\u00ed, s\u2019obtenen les corbes IDF amb l\u2019ajust de la s\u00e8rie de dades de cada freq\u00fc\u00e8ncia a una equaci\u00f3 te\u00f2rica.<\/p>\n\n\n\n<p><script>\/\/ <![CDATA[\nfunction jsDropDown (imgid,folder,newimg) { document.getElementById(imgid).src=\"https:\/\/static-m.meteo.cat\/wordpressweb\/wp-content\/uploads\/\" + folder + \"\/\" + newimg + \".png\"; }\n\/\/ ]]><\/script><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Per a cadascun dels observatoris es proporciona la corba generalitzada (segons l\u2019equaci\u00f3 de Sherman) i l\u2019equaci\u00f3 per a obtenir la intensitat (I) de la precipitaci\u00f3 (en mm\/minut), per a un per\u00edode de retorn donat (T) i per a una durada (t). Per exemple, pel cas de l\u2019Observatori de l\u2019Ebre i fent \u00fas de la f\u00f2rmula [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":36054,"menu_order":0,"comment_status":"closed","ping_status":"closed","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\/36046"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/comments?post=36046"}],"version-history":[{"count":7,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/36046\/revisions"}],"predecessor-version":[{"id":36057,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/36046\/revisions\/36057"}],"up":[{"embeddable":true,"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/pages\/36054"}],"wp:attachment":[{"href":"https:\/\/www.meteo.cat\/wpweb\/wp-json\/wp\/v2\/media?parent=36046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}