{"id":38693,"date":"2021-05-12T10:43:29","date_gmt":"2021-05-12T14:43:29","guid":{"rendered":"http:\/\/www.cec.org\/publications\/guide-des-indices-et-indicateurs-de-secheresse-utilises-en-amerique-du-nord\/"},"modified":"2024-07-11T16:51:07","modified_gmt":"2024-07-11T20:51:07","slug":"guide-des-indices-et-indicateurs-de-secheresse-utilises-en-amerique-du-nord","status":"publish","type":"publications","link":"https:\/\/www.cec.org\/fr\/publications\/guide-des-indices-et-indicateurs-de-secheresse-utilises-en-amerique-du-nord\/","title":{"rendered":"Guide des indices et indicateurs de s\u00e9cheresse utilis\u00e9s en Am\u00e9rique du Nord"},"content":{"rendered":"<p style=\"font-weight: 400;\">Presque tous les r\u00e9pondants ont d\u00e9clar\u00e9 que leur zone de responsabilit\u00e9 avait connu des s\u00e9cheresses au cours des dix ann\u00e9es pr\u00e9c\u00e9dentes, et la plupart ont indiqu\u00e9 qu\u2019elles duraient g\u00e9n\u00e9ralement moins de six mois. \u00c0 l\u2019\u00e9gard de la plupart des zones climatiques, les r\u00e9pondants ont d\u00e9clar\u00e9 que l\u2019efficacit\u00e9 des indicateurs n\u2019\u00e9tait pas uniforme dans l\u2019ensemble de leur zone g\u00e9ographique respective, ou encore d\u2019une saison \u00e0 une autre. L\u2019humidit\u00e9 du sol \u00e9tait le seul indicateur consid\u00e9r\u00e9 comme tr\u00e8s efficace dans toutes les zones climatiques. Six autres se sont r\u00e9v\u00e9l\u00e9es tr\u00e8s efficaces dans la plupart de ces zones : le rapport \u00e0 la normale des pr\u00e9cipitations (RNP), l\u2019indice de pr\u00e9cipitations et d\u2019\u00e9vapotranspiration normalis\u00e9, l\u2019indice de pr\u00e9cipitations normalis\u00e9, l\u2019\u00e9tat des cultures, le stockage d\u2019eau dans les r\u00e9servoirs et l\u2019United States Drought Monitor (Outil de suivi des s\u00e9cheresses aux \u00c9tats-Unis).<\/p>\n<p style=\"font-weight: 400;\">Les informations recueillies au sujet de l\u2019efficacit\u00e9 des indicateurs de s\u00e9cheresse sont compil\u00e9es dans une s\u00e9rie de tableaux et de graphiques qui constituent un guide informel des indicateurs les plus appropri\u00e9s pour surveiller les s\u00e9cheresses dans les zones climatiques nord-am\u00e9ricaines.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019objectif de la pr\u00e9sente \u00e9tude a consist\u00e9 \u00e0 am\u00e9liorer la capacit\u00e9 des collectivit\u00e9s et des d\u00e9cideurs r\u00e9gionaux et locaux \u00e0 surveiller les conditions de s\u00e9cheresse et \u00e0 s\u2019y pr\u00e9parer gr\u00e2ce \u00e0 l\u2019\u00e9laboration d\u2019un guide d\u2019indicateurs pertinents \u00e0 l\u2019\u00e9chelle locale pour les r\u00e9gions climatiques nord-am\u00e9ricaines. La collecte des donn\u00e9es s\u2019est faite au moyen d\u2019un sondage en ligne comportant des questions sur les exp\u00e9riences des r\u00e9pondants en mati\u00e8re de s\u00e9cheresse dans leur zone g\u00e9ographique. Une s\u00e9rie de questions cl\u00e9s portait sur l\u2019efficacit\u00e9 de diff\u00e9rents indicateurs de s\u00e9cheresse, et l\u2019analyse des r\u00e9ponses a servi \u00e0 d\u00e9terminer quels indicateurs de s\u00e9cheresse de courte et de longue dur\u00e9e les r\u00e9pondants ont estim\u00e9 avoir le plus d\u2019efficacit\u00e9 dans des zones climatiques particuli\u00e8res d\u2019Am\u00e9rique du Nord vis\u00e9es par le syst\u00e8me de classification des climats de K\u00f6ppen. La tenue de webinaires en anglais et en espagnol a permis de recueillir des renseignements suppl\u00e9mentaires.<\/p>\n","protected":false},"featured_media":38697,"template":"","class_list":["post-38693","publications","type-publications","status-publish","has-post-thumbnail","hentry","document_type-publication-de-projet","document_theme-changements-climatiques"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Guide des indices et indicateurs de s\u00e9cheresse utilis\u00e9s en Am\u00e9rique du Nord<\/title>\n<meta name=\"description\" content=\"Presque tous les r\u00e9pondants ont d\u00e9clar\u00e9 que leur zone de responsabilit\u00e9 avait connu des s\u00e9cheresses au cours des dix ann\u00e9es pr\u00e9c\u00e9dentes...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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