{"id":3700,"date":"2014-12-16T12:27:47","date_gmt":"2014-12-16T17:27:47","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=3700"},"modified":"2015-01-06T20:05:24","modified_gmt":"2015-01-07T01:05:24","slug":"quest-ce-qui-se-passe-si-de-la-lave-coule-sur-de-la-neige","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/quest-ce-qui-se-passe-si-de-la-lave-coule-sur-de-la-neige\/","title":{"rendered":"Qu&#8217;est-ce qui se passe si de la lave coule sur de la neige?"},"content":{"rendered":"<div id=\"attachment_3701\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/12\/Image2.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3701\" class=\"size-medium wp-image-3701\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/12\/Image2-300x200.jpg\" alt=\"De la lave s\u2019\u00e9coule sur de la neige lors de l\u2019\u00e9ruption du volcan Tolbachik \u00e0 Kamtchatka en Russie en 2012-2013. (Photo: Benjamin R. Edwards)\" width=\"300\" height=\"200\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/12\/Image2-300x200.jpg 300w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/12\/Image2-1024x683.jpg 1024w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/12\/Image2.jpg 1890w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-3701\" class=\"wp-caption-text\">De la lave s\u2019\u00e9coule sur de la neige lors de l\u2019\u00e9ruption du volcan Tolbachik \u00e0 Kamtchatka en Russie en 2012-2013. (Photo: Benjamin R. Edwards)<\/p><\/div>\n<p>Contrairement \u00e0 ce qu\u2019on pourrait croire, la lave n\u2019interagit pas beaucoup avec la neige et ne cause pas de risque d\u2019inondation pour une ville \u00e0 proximit\u00e9. Des chercheurs ont \u00e9tudi\u00e9 dans l\u2019est de la Russie le volcan Tolbachik afin de mieux comprendre les effets de coul\u00e9es de lave sur de la neige afin de pr\u00e9voir l\u2019intensit\u00e9 de la fonte subs\u00e9quente des neiges.<\/p>\n<p>Ils ont observ\u00e9 que la lave se d\u00e9pla\u00e7ant rapidement sur de la neige n\u2019interagit quasiment pas avec celle-ci : la neige agit comme un isolant thermique. M\u00eame avec de la lave se d\u00e9pla\u00e7ant tr\u00e8s lentement, les chercheurs ont observ\u00e9 de la vapeur d\u2019eau et seulement une quantit\u00e9 limit\u00e9e de neige fondue.<\/p>\n<p>Finalement, ils ont observ\u00e9 que les coul\u00e9es de lave les plus lentes peuvent cr\u00e9er des textures sur la neige qui pourraient \u00eatre utiles dans les \u00e9tudes de pal\u00e9oclimatologie.<\/p>\n<p>Pour lire l\u2019article original publi\u00e9 dans <em>Nature Communications\u00a0<\/em>le\u00a0<strong>16 d\u00e9cembre<\/strong><b><span lang=\"FR-CA\">\u00a02014<\/span><\/b>,\u00a0<a href=\"http:\/\/nature.com\/articles\/doi:10.1038\/ncomms6666\" target=\"_blank\"><span style=\"text-decoration: underline;\">cliquez ici<\/span><\/a>.<\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Auteur \u00e0 contacter pour plus d\u2019information<\/strong><\/em><\/span><\/p>\n<h4>Benjamin Edwards, Dickinson College, \u00c9tats-Unis<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Contrairement \u00e0 ce qu\u2019on pourrait croire, la lave n\u2019interagit pas beaucoup avec la neige et ne cause pas de risque d\u2019inondation pour une ville \u00e0 proximit\u00e9. Des chercheurs ont \u00e9tudi\u00e9 dans l\u2019est de la Russie le volcan Tolbachik afin de mieux comprendre les effets de coul\u00e9es de lave sur de la neige afin de pr\u00e9voir [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3699,"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":[683,1463,2337],"class_list":["post-3700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest-fr","tag-environnement","tag-geologie","tag-volcan"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/12\/Image2.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-XG","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/3700","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=3700"}],"version-history":[{"count":3,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/3700\/revisions"}],"predecessor-version":[{"id":3718,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/3700\/revisions\/3718"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/3699"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=3700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=3700"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=3700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}