{"id":3062,"date":"2014-09-24T13:10:36","date_gmt":"2014-09-24T18:10:36","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=3062"},"modified":"2014-09-24T20:07:10","modified_gmt":"2014-09-25T01:07:10","slug":"comment-le-canyon-fraser-reste-escarpe","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/comment-le-canyon-fraser-reste-escarpe\/","title":{"rendered":"Comment le canyon Fraser reste escarp\u00e9<img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_3060\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/DSC_0265.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3060\" class=\"size-full wp-image-3060\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/DSC_0265.jpg\" alt=\"Le canyon Fraser en Colombie-Britannique. (Photo : Jeremy Venditti)\" width=\"400\" height=\"262\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/DSC_0265.jpg 400w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/DSC_0265-300x196.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-3060\" class=\"wp-caption-text\">Le canyon Fraser en Colombie-Britannique. (Photo : Jeremy Venditti)<\/p><\/div>\n<p>Une nouvelle \u00e9tude r\u00e9v\u00e8le la dynamique de la rivi\u00e8re qui creuse le canyon Fraser long de 542 kilom\u00e8tres en Colombie-Britannique et explique comment les parois du canyon restent escarp\u00e9es.<\/p>\n<p>Les chercheurs ont utilis\u00e9 un dispositif sonore mont\u00e9 sur un radeau afin d\u2019analyser la vitesse du flot de l\u2019eau \u00e0 diff\u00e9rentes profondeurs et \u00e0 divers endroits de la rivi\u00e8re. Ils ont d\u00e9couvert qu\u2019\u00e0 certains endroits, l\u2019eau coule vite vers le bas et remonte rapidement sur les parois.<\/p>\n<p>Contrairement \u00e0 la majorit\u00e9 des rivi\u00e8res, l\u2019eau au fond de la rivi\u00e8re coule plus rapidement que l\u2019eau de surface. Le flot rapide \u00e9rode le fond de la rivi\u00e8re et les parois, et emp\u00eache l\u2019accumulation de s\u00e9diments au fond de celle-ci.<\/p>\n<p>Pour lire l\u2019article original publi\u00e9 dans\u00a0<em>Nature\u00a0<\/em>le\u00a0<strong>24 septembre\u00a0<\/strong><strong>2014<\/strong>,\u00a0<span style=\"text-decoration: underline;\"><a href=\"http:\/\/dx.doi.org\/10.1038\/nature13779\" target=\"_blank\">cliquez ici<\/a><\/span>.<\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Auteur \u00e0 contacter pour plus d\u2019informations<\/strong><\/em><\/span><\/p>\n<h4>Colin Rennie, Universit\u00e9 d\u2019Ottawa, Ontario<\/h4>\n<h4>Jeremy Venditti, Universit\u00e9 Simon Fraser, British Columbia<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Une nouvelle \u00e9tude r\u00e9v\u00e8le la dynamique de la rivi\u00e8re qui creuse le canyon Fraser long de 542 kilom\u00e8tres en Colombie-Britannique et explique comment les parois du canyon restent escarp\u00e9es. Les chercheurs ont utilis\u00e9 un dispositif sonore mont\u00e9 sur un radeau afin d\u2019analyser la vitesse du flot de l\u2019eau \u00e0 diff\u00e9rentes profondeurs et \u00e0 divers endroits [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3060,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[531],"tags":[388,402,1324,683,1463,846],"class_list":["post-3062","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest-fr","tag-changements-climatiques","tag-colombie-britannique","tag-ecologie","tag-environnement","tag-geologie","tag-ontario-fr"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/09\/DSC_0265.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-No","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/3062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=3062"}],"version-history":[{"count":3,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/3062\/revisions"}],"predecessor-version":[{"id":3065,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/3062\/revisions\/3065"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/3060"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=3062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=3062"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=3062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}