{"id":878,"date":"2005-09-09T13:37:00","date_gmt":"2005-09-09T11:37:00","guid":{"rendered":"https:\/\/kids.esa.int\/cryosat_europe_s_ice_explorer\/"},"modified":"2026-10-08T00:33:18","modified_gmt":"2026-10-07T22:33:18","slug":"cryosat_europe_s_ice_explorer","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/cryosat_europe_s_ice_explorer\/","title":{"rendered":"Cryosat: Eur\u00f3pa j\u00e9gkutat\u00f3ja"},"content":{"rendered":"
\n

A tud\u00f3sok t\u00f6bbs\u00e9ge egyet\u00e9rt abban, hogy bolyg\u00f3nk egyre melegebb\u00e9 v\u00e1lik. A sz\u00e1zad els\u0151 t\u00edz \u00e9ve volt a valaha m\u00e9rt legmelegebb \u00e9vtized. Ez val\u00f3sz\u00edn\u0171leg jelent\u0151s v\u00e1ltoz\u00e1sokat fog okozni Eur\u00f3pa \u00e9ghajlat\u00e1ban. De mi a helyzet a sarki j\u00e9gsapk\u00e1kkal? Olvad a j\u00e9g? Ha igen, milyen hat\u00e1ssal lesz ez a glob\u00e1lis \u00e9ghajlatra \u00e9s a tengerszintre?<\/p>\n<\/div>\n

Egy eur\u00f3pai m\u0171hold most m\u00e1r n\u00e9h\u00e1ny v\u00e1laszt is ad ezekre a k\u00e9rd\u00e9sekre. A 2010. \u00e1prilis 8-\u00e1n p\u00e1ly\u00e1ra \u00e1ll\u00edtott Cryosat 720 km-es magass\u00e1gban rep\u00fcl a sarkok felett.<\/p>\n

A Cryosat egy cs\u00facstechnol\u00f3gi\u00e1j\u00fa radarberendez\u00e9s seg\u00edts\u00e9g\u00e9vel m\u00e9ri a j\u00e9gvastags\u00e1g apr\u00f3 v\u00e1ltoz\u00e1sait \u00fagy, hogy r\u00e1di\u00f3jeleket bocs\u00e1t ki a felsz\u00ednre, majd fogja a visszhangokat. Ha a visszhangok gyorsabban \u00e9rkeznek vissza, akkor a j\u00e9gfelsz\u00edn magasabbnak kell lennie.<\/p>\n

A Cryosat k\u00e9pes \u00e9szlelni az \u00c9szaki-tengeren \u00fasz\u00f3 j\u00e9g magass\u00e1g\u00e1nak \u00e9vi 2 cm-n\u00e9l kisebb v\u00e1ltoz\u00e1sait. Az Antarktisz kontinensen tal\u00e1lhat\u00f3 hatalmas j\u00e9gtakar\u00f3k felett pedig \u00e9vi 2 mm-n\u00e9l kisebb v\u00e1ltoz\u00e1sokat is k\u00e9pes m\u00e9rni.<\/p>\n

Ezek az eredm\u00e9nyek seg\u00edtenek a tud\u00f3soknak abban, hogy kider\u00edts\u00e9k, felbomlik-e \u00e9s olvad-e az \u00c9szaki-sarkvid\u00e9k tengeri j\u00e9gtakar\u00f3ja. Emellett azt is megmutatj\u00e1k, hogy az Antarktisz sz\u00e1razf\u00f6ldj\u00e9t \u00e9s a k\u00f6rnyez\u0151 tengert bor\u00edt\u00f3 j\u00e9gtakar\u00f3k zsugorodnak-e vagy n\u00f6vekednek-e. Ez az\u00e9rt fontos, mert a j\u00e9gtakar\u00f3k olvad\u00e1sa eset\u00e9n a tengerszint t\u00f6bb m\u00e9terrel is emelkedhet. Ez\u00e1ltal sz\u00e1mos alacsonyan fekv\u0151 v\u00e1ros \u00e9s orsz\u00e1g ker\u00fclhet v\u00edz al\u00e1.<\/p>\n

A CryoSat az ESA \u201eLiving Planet\u201d programja keret\u00e9ben ind\u00edtott harmadik Earth Explorer-misszi\u00f3 (a GOCE \u2013 az ESA gravit\u00e1ci\u00f3s misszi\u00f3ja \u2013 \u00e9s az SMOS \u2013 az ESA v\u00edzmisszi\u00f3ja \u2013 ut\u00e1n).<\/p>","protected":false},"excerpt":{"rendered":"

Most scientists agree that our planet is getting warmer. The first 10 years of this century were the warmest decade on record. This is likely to cause important changes 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\/06\/artist_s_impression_of_cryosat_in_orbit2\/17878071-2-eng-GB\/Artist_s_impression_of_CryoSat_in_orbit.jpg","esa_banner_description":"Artist's impression of CryoSat in orbit","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/06\/Artist_s_impression_of_CryoSat_in_orbit2","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":[64,42,10],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-878","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=878"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/878\/revisions"}],"predecessor-version":[{"id":2021,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/878\/revisions\/2021"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=878"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=878"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=878"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=878"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=878"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=878"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=878"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}