{"id":993,"date":"2007-03-13T10:41:00","date_gmt":"2007-03-13T09:41:00","guid":{"rendered":"https:\/\/kids.esa.int\/arctic_explorers_support_esa_s_cryosat\/"},"modified":"2026-10-08T00:34:37","modified_gmt":"2026-10-07T22:34:37","slug":"arctic_explorers_support_esa_s_cryosat","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/arctic_explorers_support_esa_s_cryosat\/","title":{"rendered":"Les explorateurs de l'Arctique au service de la mission CryoSat de l'ESA"},"content":{"rendered":"
\n

Il y a 18 mois, le d\u00e9sespoir de la communaut\u00e9 scientifique \u00e9tait grand apr\u00e8s la perte d'un satellite charg\u00e9 de transmettre des donn\u00e9es cruciales sur le changement climatique, suite \u00e0 un probl\u00e8me au d\u00e9collage. Mais l'ESA a d\u00e9cid\u00e9 de reconstruire CryoSat et la mission est maintenant bel et bien en bonne voie. En effet, quand il d\u00e9collera en 2009, Cryosat-2 sera encore plus perfectionn\u00e9 que son pr\u00e9d\u00e9cesseur.<\/p>\n<\/div>\n

Le grand avantage de Cryosat-2 est sa capacit\u00e9 \u00e0 mesurer les changements dans l'\u00e9paisseur de la couche de glace, \u00e0 la fois sur terre et sur mer. Son principal radar et un instrument de secours identique pourront \u00e9tudier les couches de glace et les glaciers, de jour comme de nuit, quelles que soient les conditions m\u00e9t\u00e9orologiques.<\/p>\n

\"The
Les deux explorateurs de l'Arctic Arc, Alain Hubert (\u00e0 gauche) et Dixie Dansercoer<\/figcaption><\/figure>\n

Avant le lancement, plusieurs travaux pr\u00e9paratoires sont planifi\u00e9s dans l'Arctique. L'une, baptis\u00e9e Arctic Arc Expedition, se d\u00e9roule dans le cadre de l'Ann\u00e9e Polaire Internationale. Les deux explorateurs belges de cette exp\u00e9dition, Alain Hubert et Dixie Dansercoer, viennent d'entamer un long et audacieux p\u00e9riple de 110 jours \u00e0 travers le d\u00e9sert de glace.<\/p>\n

Tirant chacun un tra\u00eeneau de 130 kg charg\u00e9 de provisions et de mat\u00e9riel, ces deux intr\u00e9pides explorateurs \u2018 marcheront \u2019 au sommet du monde, depuis une \u00eele de Sib\u00e9rie jusqu\u2019au sud du Groenland. En chemin, ils noteront minutieusement l\u2019\u00e9paisseur de la neige. Ces mesures sont extr\u00eamement utiles pour v\u00e9rifier la m\u00e9thode utilis\u00e9e pour convertir les mesures radar de CryoSat en donn\u00e9es pr\u00e9cises sur l\u2019\u00e9paisseur de la glace.<\/p>\n

Les scientifiques se dirigeront vers les \u00eeles couvertes de glace Svalbard d\u00e8s la mi-avril. Les mesures de la neige et de la glace seront compar\u00e9es avec les donn\u00e9es transmises depuis un avion transportant la r\u00e9plique du radar de Cryosat.<\/p>","protected":false},"excerpt":{"rendered":"

18 months ago, scientists were in despair when a satellite that would send back vital data about climate change was lost during a launch failure. However, ESA quickly decided to […]<\/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\/2005\/07\/cryosat13\/17882289-2-eng-GB\/CryoSat.jpg","esa_banner_description":"CryoSat","esa_banner_credit":"ESA - AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/07\/CryoSat13","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":[42,10,66],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-993","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-water-world"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/993","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=993"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/993\/revisions"}],"predecessor-version":[{"id":4784,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/993\/revisions\/4784"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=993"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=993"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=993"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=993"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=993"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=993"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=993"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}