{"id":18247,"date":"2019-02-04T08:55:36","date_gmt":"2019-02-04T07:55:36","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=18247"},"modified":"2019-02-04T08:55:36","modified_gmt":"2019-02-04T07:55:36","slug":"observation-a-couper-le-souffle-du-vortex-polaire-qui-refroidit-lamerique-du-nord","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/observation-a-couper-le-souffle-du-vortex-polaire-qui-refroidit-lamerique-du-nord\/","title":{"rendered":"Observation \u00e0 couper le souffle du vortex polaire qui refroidit l&rsquo;Am\u00e9rique du Nord"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Les Am\u00e9ricains du Midwest et du Nord-Est peuvent \u00eatre d&rsquo;accord sur un point : il fait vraiment tr\u00e8s froid ce d\u00e9but f\u00e9vrier 2019, et un satellite de la NASA qui observe les temp\u00e9ratures de l\u2019air confirme ce sentiment.<\/p>\n<p>Un instrument appel\u00e9 sondeur atmosph\u00e9rique infrarouge, ou AIRS, install\u00e9 sur le satellite Aqua, mesure la temp\u00e9rature des masses d\u2019air aux \u00c9tats-Unis. Aqua a \u00e9t\u00e9 lanc\u00e9 en 2002 et comprend une demi-douzaine de diff\u00e9rents instruments con\u00e7us pour \u00e9tudier certaines parties du cycle de l&rsquo;eau, notamment l&rsquo;\u00e9vaporation, la formation de nuages \u200b\u200bet les pr\u00e9cipitations.<\/p>\n<p>L\u2019instrument AIRS se concentre sur les mesures des temp\u00e9rature, ce qui en fait un outil utile pour observer la m\u00e9t\u00e9o glaciale de cette semaine et sa cause, plus pr\u00e9cis\u00e9ment le ph\u00e9nom\u00e8ne du vortex polaire dans lequel l\u2019air froid de l\u2019Arctique se glisse plus au sud qu&rsquo;\u00e0 l&rsquo;accoutum\u00e9e.<\/p>\n<p>La nouvelle visualisation des donn\u00e9es de cet instrument de la NASA montre les mesures enregistr\u00e9es entre le 20 et le 29 janvier. Des temp\u00e9ratures basses de -40 degr\u00e9s Celsius sont affich\u00e9es en violet, et peuvent \u00eatre vues jusqu&rsquo;au sud du Dakota, Iowa et nord de l&rsquo;Illinois. Toutes les couleurs bleu p\u00e2le et \u00abplus froides\u00bb repr\u00e9sentent des temp\u00e9ratures inf\u00e9rieures au point de cong\u00e9lation de l&rsquo;eau (0 degr\u00e9 Celsius).<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/VHhAzur64HA?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Si vous habitez dans les r\u00e9gions actuellement sujettes \u00e0 cet air glacial, veillez \u00e0 bien vous grouper et \u00e0 garder un \u0153il sur les pr\u00e9visions m\u00e9t\u00e9orologiques locales.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/SolcPM0XorY?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Adaptation<a href=\"https:\/\/www.laterredufutur.com\/accueil\/\"> la Terre du Futur<\/a><\/p>\n<p>source : <a href=\"https:\/\/www.livescience.com\/64664-polar-vortex-freezing-air-satellite-view-2019.html\" target=\"_blank\" rel=\"noopener\">https:\/\/www.livescience.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"18247\">(966)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Les Am\u00e9ricains du Midwest et du Nord-Est peuvent \u00eatre d&rsquo;accord sur un point : il fait vraiment tr\u00e8s froid ce&#8230;<\/p>\n","protected":false},"author":1,"featured_media":18248,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_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":"","jetpack_publicize_message":"Observation \u00e0 couper le souffle du vortex polaire qui refroidit l'Am\u00e9rique du Nord @laterredufutur.com","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[21,32],"tags":[189,153,1988,119,684,550],"class_list":["post-18247","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenement-brutal","category-meteorologie","tag-amerique-du-nord","tag-froid","tag-glacial","tag-nasa","tag-video","tag-vortex-polaire","wpcat-21-id","wpcat-32-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/vortex-polaire-amerique-du-nord-fevrier2019.jpg?fit=2333%2C1400&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-4Kj","jetpack-related-posts":[{"id":27094,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-decouvrent-des-changements-dans-le-vortex-polaire\/","url_meta":{"origin":18247,"position":0},"title":"Des scientifiques d\u00e9couvrent des changements dans le vortex polaire","author":"Admin","date":"23 juillet 2025","format":false,"excerpt":"Lorsque le vortex polaire s'\u00e9tend, l'Am\u00e9rique du Nord ressent le froid. De nouvelles recherches r\u00e9v\u00e8lent certains des sch\u00e9mas stratosph\u00e9riques qui contr\u00f4lent ces vagues de froid. Bien que les temp\u00e9ratures mondiales se r\u00e9chauffent, les hivers dans l\u2019h\u00e9misph\u00e8re nord sont toujours marqu\u00e9s par des vagues de froid et des chutes de neige\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/neige-froid-texas-1.jpg?fit=600%2C750&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/neige-froid-texas-1.jpg?fit=600%2C750&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/neige-froid-texas-1.jpg?fit=600%2C750&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":3283,"url":"https:\/\/www.laterredufutur.com\/accueil\/quand-le-vortex-polaire-cree-un-trou-dozone-sur-les-pays-bas\/","url_meta":{"origin":18247,"position":1},"title":"Quand le vortex polaire cr\u00e9\u00e9 un trou d&rsquo;ozone sur les Pays Bas","author":"Admin","date":"25 janvier 2006","format":false,"excerpt":"Suite aux tr\u00e8s fortes gel\u00e9es et grands froids sur l'Europe, un mini trou d'ozone s'est form\u00e9 au dessus des Pays Bas. Il se pourrait bien que le vortex polaire soit descendu sur l'Europe. Ainsi\u00a0les gaz \u00e0 effet de serre sont\u00a0en train de le renforcer. Voici les raisons de cet hiver\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/115051main_vortex.jpeg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":23128,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-pole-sud-vient-de-connaitre-lhiver-le-plus-froid-jamais-enregistre\/","url_meta":{"origin":18247,"position":2},"title":"Le p\u00f4le Sud vient de conna\u00eetre l&rsquo;hiver le plus froid jamais enregistr\u00e9","author":"Admin","date":"5 octobre 2021","format":false,"excerpt":"Les temp\u00e9ratures hivernales glaciales de l'Antarctique contrastent avec les tendances observ\u00e9es dans le reste du monde, qui a enregistr\u00e9 son quatri\u00e8me \u00e9t\u00e9 le plus chaud. Le p\u00f4le Sud vient de conna\u00eetre l'hiver le plus froid jamais enregistr\u00e9. Entre avril et septembre, une station de recherche situ\u00e9e sur un haut plateau\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/antarctique.jpg?fit=1024%2C603&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/antarctique.jpg?fit=1024%2C603&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/antarctique.jpg?fit=1024%2C603&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/antarctique.jpg?fit=1024%2C603&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1898,"url":"https:\/\/www.laterredufutur.com\/accueil\/canada-lhiver-le-plus-froid-depuis-20-ans\/","url_meta":{"origin":18247,"position":3},"title":"Canada : L&rsquo;hiver le plus froid depuis 20 ans","author":"Admin","date":"30 mars 2014","format":false,"excerpt":"Pendant que l'Europe a connu un des hivers les plus doux, on se souviendra longtemps de l'hiver qui vient de finir en Am\u00e9rique du Nord. Un printemps tardif succ\u00e8de \u00e0 l'un des hivers les plus rudes. Au Qu\u00e9bec, il faut remonter \u00e0 1993-1994 pour trouver un hiver plus froid que\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2014\/03\/laterredufutur.com_photos_canada-hiver2014-1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":17903,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-vortex-polaire-seffondre-et-pourrait-impacter-notre-hiver\/","url_meta":{"origin":18247,"position":4},"title":"Le vortex polaire s&rsquo;effondre et pourrait impacter notre hiver","author":"Admin","date":"20 janvier 2019","format":false,"excerpt":"La descente des temp\u00e9ratures de l\u2019Arctique en direction des \u00c9tats-Unis ce week-end pourrait \u00eatre le premier signe de l\u2019aggravation de la situation cet hiver, avec les signes que le syst\u00e8me circulaire de basse pression de vents tourbillonnants maintient normalement l\u2019air glac\u00e9 clo\u00eetr\u00e9 au p\u00f4le Nord mais il est perturb\u00e9 et\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/vortex-polaire-2parties-janvier2019.jpg?fit=1200%2C840&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/vortex-polaire-2parties-janvier2019.jpg?fit=1200%2C840&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/vortex-polaire-2parties-janvier2019.jpg?fit=1200%2C840&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/vortex-polaire-2parties-janvier2019.jpg?fit=1200%2C840&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/01\/vortex-polaire-2parties-janvier2019.jpg?fit=1200%2C840&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1812,"url":"https:\/\/www.laterredufutur.com\/accueil\/tempetes-a-repetition-que-se-passe-t-il\/","url_meta":{"origin":18247,"position":5},"title":"Temp\u00eates \u00e0 r\u00e9p\u00e9tition, que se passe t-il ?","author":"Admin","date":"16 f\u00e9vrier 2014","format":false,"excerpt":"Cela n'aura \u00e9chapp\u00e9 \u00e0 personne, \u00e0 l'heure o\u00f9 ces lignes sont \u00e9crites, nous sommes \u00e0 la 25eme d\u00e9pression qui frappe la Bretagne de plein fouet durant cet hiver. Pendant ce temps, l'Am\u00e9rique du Nord connait un hiver sans pr\u00e9c\u00e9dent, la Californie connait une une douceur exceptionnelle comparable \u00e0 ce que\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/18247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=18247"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/18247\/revisions"}],"predecessor-version":[{"id":18249,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/18247\/revisions\/18249"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/18248"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=18247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=18247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=18247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}