{"id":648,"date":"2012-12-05T13:13:00","date_gmt":"2012-12-05T12:13:00","guid":{"rendered":"https:\/\/kids.esa.int\/snow_cover_hits_record_lows\/"},"modified":"2026-10-08T00:30:41","modified_gmt":"2026-10-07T22:30:41","slug":"snow_cover_hits_record_lows","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/snow_cover_hits_record_lows\/","title":{"rendered":"L\u2019enneigement atteint son plus bas niveau"},"content":{"rendered":"
\n

Le P\u00e8re No\u00ebl devra-t-il un jour ajouter des roues \u00e0 son tra\u00eeneau ? Nous n\u2019en sommes pas encore l\u00e0, mais les observations par satellite d\u00e9montrent une diminution progressive de la couverture neigeuse dans l\u2019h\u00e9misph\u00e8re nord.<\/p>\n<\/div>\n

Chaque mois de juin depuis 2008, des satellites d\u2019observation comme Envisat de l\u2019ESA mettent en \u00e9vidence des niveaux d\u2019enneigement parmi les plus faibles jamais rencontr\u00e9s en Europe et en Asie. De plus, sur trois des cinq derni\u00e8res ann\u00e9es, la couverture neigeuse n\u2019aura jamais \u00e9t\u00e9 aussi basse pendant l'\u00e9t\u00e9 en Am\u00e9rique du Nord. Les zones enneig\u00e9es au mois de juin sont les plus faibles jamais relev\u00e9es depuis la mise en service des premiers satellites d\u2019observation il y a 45 ans.<\/p>\n

\"Snowfall\"<\/figure>\n

Le manteau neigeux au mois de juin diminue chaque ann\u00e9e bien plus rapidement que nos mod\u00e8les climatiques ne l\u2019avaient pr\u00e9dit. De plus, la neige fond plus rapidement que la couverture de glace estivale en Arctique. Les donn\u00e9es satellitaires d\u00e9montrent aussi que la couche maximale de neige dans l\u2019h\u00e9misph\u00e8re nord diminue progressivement, alors que les neiges printani\u00e8res - plus particuli\u00e8rement aux environs du p\u00f4le Nord - fondent plus t\u00f4t dans l\u2019ann\u00e9e.<\/p>\n

Que signifient une diminution progressive de l\u2019enneigement et une fonte plus rapide des neiges ? Les changements de la masse totale de neige et de sa r\u00e9partition ont une incidence consid\u00e9rable sur la quantit\u00e9 d\u2019eau dans les glaciers, dans les rivi\u00e8res et dans les nappes phr\u00e9atiques. Ils influent \u00e9galement les changements climatiques au long terme.<\/p>\n

Le P\u00e8re No\u00ebl ne sera pas le seul \u00e0 devoir \u00e0 changer son mode de vie dans le futur...<\/p>","protected":false},"excerpt":{"rendered":"

Will Santa Claus one day need wheels for his sleigh? That is still a long way off, but satellite observations are showing a steady decrease in the amount of snow […]<\/p>\n","protected":false},"author":5,"featured_media":0,"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,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2012\/06\/how_much_freshwater_is_held_in_snow2\/17894277-2-eng-GB\/How_much_freshwater_is_held_in_snow.jpg","esa_banner_description":"","esa_banner_credit":"S. Fraser","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/06\/How_much_freshwater_is_held_in_snow2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-648","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=648"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/648\/revisions"}],"predecessor-version":[{"id":4610,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/648\/revisions\/4610"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=648"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=648"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=648"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=648"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=648"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=648"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=648"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}