{"id":555,"date":"2013-12-13T08:49:00","date_gmt":"2013-12-13T07:49:00","guid":{"rendered":"https:\/\/kids.esa.int\/thinning_ice_and_rising_sea_levels\/"},"modified":"2026-10-08T00:29:35","modified_gmt":"2026-10-07T22:29:35","slug":"thinning_ice_and_rising_sea_levels","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/thinning_ice_and_rising_sea_levels\/","title":{"rendered":"J\u00e4\u00e4 \u00f5henemine ja merepinna t\u00f5us"},"content":{"rendered":"
\n

Alates k\u00e4ivitamisest 2010. aasta aprillis on ESA kosmosesond CryoSat lennanud meie planeedi p\u00f5hja- ja l\u00f5unapooluse kohal. Selle \u00fclesanne on j\u00e4lgida neid piirkondi katva j\u00e4\u00e4 paksuse muutusi.<\/p>\n

Kolmeaastaste vaatluste j\u00e4rel on CryoSat kinnitanud, et Arktika j\u00e4\u00e4 (P\u00f5hjapoolus) maht v\u00e4heneb. CryoSat on n\u00e4idanud ka, et L\u00e4\u00e4ne-Antarktika j\u00e4\u00e4kilp (L\u00f5unapoolus) kaotab igal aastal \u00fcle 150 kuupkilomeetri j\u00e4\u00e4d. See vastab 1 km laiale, 1 km paksule ja 150 km pikale j\u00e4\u00e4plaadile!<\/p>\n<\/div>\n

Maakera polaarpiirkondi katvad tohutud j\u00e4\u00e4kilbid ei ole p\u00fcsivad. Need kasvavad k\u00fclmemate perioodide, nn j\u00e4\u00e4aegade ajal, ning kahanevad, kui temperatuur t\u00f5useb v\u00f5i kohalikud tingimused muutuvad. Isegi peaaegu 3 km paksune Antarktika j\u00e4\u00e4kilp v\u00f5ib sellest m\u00f5jutatud olla.<\/p>\n

\"Change
J\u00e4\u00e4katte paksuse muutus aastas<\/figcaption><\/figure>\n

L\u00e4\u00e4ne-Antarktikas toimub praegu kiire j\u00e4\u00e4kaotus. CryoSat on n\u00e4idanud, et suurem osa sellest toimub Amundseni merre suubuvates liustikes. J\u00e4\u00e4 \u00f5henemise kiirus t\u00f5useb 4\u20138 meetrini aastas kohtades, kus Pine Islandi, Thwaites\u2019i ja Smithi liustikud lahkuvad maismaast ja hakkavad ookeani peal ujuma.<\/p>\n

Arvati, et L\u00e4\u00e4ne-Antarktika j\u00e4\u00e4 sulamine p\u00f5hjustas aastatel 2005\u20132010 \u00fclemaailmset merepinna t\u00f5usu 0,28 mm aastas. CryoSati uued tulemused viitavad aga sellele, et selle piirkonna panus merepinna t\u00f5usu on veelgi suurem! See v\u00f5ib olla tingitud kas sellest, et j\u00e4\u00e4 \u00f5heneb kiiremini, kui teadlased varem arvasid, v\u00f5i sellest, et CryoSat annab teistest satelliitidest t\u00e4psema \u00fclevaate!<\/p>","protected":false},"excerpt":{"rendered":"

Since its launch in April 2010, ESA\u2019s CryoSat spacecraft has been flying over the North and South Poles of our planet. Its mission is to observe changes in the thickness […]<\/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\/2010\/01\/esa_s_ice_mission2\/17894573-2-eng-GB\/ESA_s_ice_mission.jpg","esa_banner_description":"ESA's ice mission","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/01\/ESA_s_ice_mission2","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-555","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\/et\/wp-json\/wp\/v2\/posts\/555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=555"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/555\/revisions"}],"predecessor-version":[{"id":4547,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/555\/revisions\/4547"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=555"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=555"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=555"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=555"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=555"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=555"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=555"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}