{"id":1017,"date":"2010-02-18T14:27:00","date_gmt":"2010-02-18T13:27:00","guid":{"rendered":"https:\/\/kids.esa.int\/cryosat_esa_s_eye_on_earth_s_ice\/"},"modified":"2026-10-08T00:34:55","modified_gmt":"2026-10-07T22:34:55","slug":"cryosat_esa_s_eye_on_earth_s_ice","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/cryosat_esa_s_eye_on_earth_s_ice\/","title":{"rendered":"CryoSat \u2013 ESA silm Maa j\u00e4\u00e4l"},"content":{"rendered":"<div class=\"lede\">\n<p>ESA on valmis orbiidile saatma k\u00f5igi aegade k\u00f5ige arenenuma satelliidi, mis m\u00f5\u00f5dab Maa j\u00e4\u00e4katet. CryoSat-missioon on taas ellu \u00e4ratatud p\u00e4rast seda, kui esimene satelliit l\u00e4ks kaduma 2005. aasta oktoobris kanderaketi rikke t\u00f5ttu. N\u00fc\u00fcd on uus ja t\u00e4iustatud CryoSat-2 valmis 8. aprillil orbiidile t\u00f5usma. Venemaa Dnepr-rakett viib selle 700 km k\u00f5rgusele polaarorbiidile, start toimub Kasahstani Baikonuri kosmodroomilt.<\/p>\n<\/div>\n<p>J\u00e4\u00e4katet on juba aastaid kaardistatud kosmosest selliste satelliitide abil nagu Envisat. Hiljutised rekordiliselt madalad suvised Arktika merej\u00e4\u00e4 pindalad n\u00e4itavad, et maailma p\u00f5hjapoolusel toimuvad m\u00e4rkimisv\u00e4\u00e4rsed muutused. Kuid see ei anna terviklikku \u00fclevaadet sellest, kuidas kliimamuutus v\u00f5ib m\u00f5jutada polaarpiirkondi. Teadlased soovivad samuti teada saada, kuidas muutub j\u00e4\u00e4 paksus. Maismaal asuvad j\u00e4\u00e4kilbid on mitme kilomeetri paksused. Kui need hakkavad kaduma, v\u00f5ib see kaasa tuua merepinna m\u00e4rkimisv\u00e4\u00e4rse t\u00f5usu, mille tagaj\u00e4rjel v\u00f5ivad \u00fcle ujutatud saada rannikualad, sealhulgas suurlinnad.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"4647\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/01\/Canadian_Arctic_and_Greenland_as_seen_by_Envisat2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2010\/01\/canadian_arctic_and_greenland_as_seen_by_envisat2\/17912740-2-eng-GB\/Canadian_Arctic_and_Greenland_as_seen_by_Envisat.jpg\" alt=\"Canadian Arctic and Greenland as seen by Envisat\"><\/figure>\n<p>CryoSat on ideaalne j\u00e4\u00e4vaatleja. Sellel on igasuguste ilmastikutingimuste jaoks sobiv mikrolaine-radar, mis v\u00f5tab vastu l\u00fchikeste radarimpulsside kaja, mis peegelduvad j\u00e4\u00e4pinnalt tagasi. Seade suudab v\u00e4ga t\u00e4pselt m\u00f5\u00f5ta polaarmeredel ujuvate j\u00e4\u00e4kihtide paksuse k\u00f5ikumisi. Samuti j\u00e4lgib see t\u00e4helepanelikult Gr\u00f6\u00f6nimaad ja Antarktikat katvaid tohutuid j\u00e4\u00e4kilpe. J\u00e4rgmise kolme kuni viie aasta jooksul suudab satelliit tuvastada isegi nii v\u00e4ikseid muutusi kui \u00fcks sentimeeter aastas.<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA is about to launch the most advanced satellite ever to measure Earth\u2019s ice cover. The CryoSat mission has come back from the dead after the first satellite was lost [&hellip;]<\/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\/2009\/09\/cryosat2\/17868562-2-eng-GB\/CryoSat.jpg","esa_banner_description":"CryoSat","esa_banner_credit":"ESA\/P. 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