{"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\/cs\/cryosat_europe_s_ice_explorer\/","title":{"rendered":"Cryosat: Evropsk\u00e1 sonda pro v\u00fdzkum ledu"},"content":{"rendered":"
\n

V\u011bt\u0161ina v\u011bdc\u016f se shoduje na tom, \u017ee se na\u0161e planeta otepluje. Prvn\u00edch deset let tohoto stolet\u00ed bylo nejteplej\u0161\u00edm desetilet\u00edm v historii. To pravd\u011bpodobn\u011b zp\u016fsob\u00ed v\u00fdznamn\u00e9 zm\u011bny v klimatu Evropy. Ale co pol\u00e1rn\u00ed ledov\u00e9 \u010depice? Taje led? Pokud ano, jak\u00fd to bude m\u00edt dopad na glob\u00e1ln\u00ed klima a hladinu mo\u0159e?<\/p>\n<\/div>\n

N\u011bkter\u00e9 odpov\u011bdi nyn\u00ed p\u0159in\u00e1\u0161\u00ed evropsk\u00e1 dru\u017eice. Cryosat, vypu\u0161t\u011bn\u00fd 8. dubna 2010, ob\u00edh\u00e1 nad p\u00f3ly ve v\u00fd\u0161ce 720 km.<\/p>\n

Pomoc\u00ed nejmodern\u011bj\u0161\u00edho radarov\u00e9ho p\u0159\u00edstroje m\u011b\u0159\u00ed Cryosat nepatrn\u00e9 zm\u011bny tlou\u0161\u0165ky ledu tak, \u017ee vys\u00edl\u00e1 r\u00e1diov\u00e9 sign\u00e1ly, kter\u00e9 se odr\u00e1\u017eej\u00ed od povrchu, a zachycuje jejich ozv\u011bny. Pokud se ozv\u011bny vracej\u00ed rychleji, znamen\u00e1 to, \u017ee povrch ledu je vy\u0161\u0161\u00ed.<\/p>\n

Cryosat je schopen zaznamenat zm\u011bny v\u00fd\u0161ky ledu plovouc\u00edho na Severn\u00edm ledov\u00e9m oce\u00e1nu men\u0161\u00ed ne\u017e 2 cm za rok. Nad obrovsk\u00fdmi ledov\u00fdmi \u0161t\u00edty na kontinentu Antarktidy dok\u00e1\u017ee m\u011b\u0159it ro\u010dn\u00ed zm\u011bny men\u0161\u00ed ne\u017e 2 mm.<\/p>\n

Tyto v\u00fdsledky pom\u00e1haj\u00ed v\u011bdc\u016fm zjistit, zda se arktick\u00fd mo\u0159sk\u00fd led rozpad\u00e1 a taje. Ukazuj\u00ed tak\u00e9, zda se ledov\u00e9 \u0161t\u00edty pokr\u00fdvaj\u00edc\u00ed pevninskou \u010d\u00e1st Antarktidy a okoln\u00ed mo\u0159e zmen\u0161uj\u00ed, nebo zv\u011bt\u0161uj\u00ed. To je d\u016fle\u017eit\u00e9, proto\u017ee pokud by ledov\u00e9 \u0161t\u00edty rozt\u00e1ly, hladina mo\u0159e by mohla stoupnout o mnoho metr\u016f. Mnoho n\u00edzko polo\u017een\u00fdch m\u011bst a zem\u00ed by pak mohlo b\u00fdt zaplaveno.<\/p>\n

CryoSat je t\u0159et\u00ed mis\u00ed v r\u00e1mci programu \u201eLiving Planet\u201c Evropsk\u00e9 kosmick\u00e9 agentury (ESA), kter\u00e1 bude vypu\u0161t\u011bna (po misi GOCE zam\u011b\u0159en\u00e9 na m\u011b\u0159en\u00ed gravitace a misi SMOS zam\u011b\u0159en\u00e9 na vodu).<\/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\/cs\/wp-json\/wp\/v2\/posts\/878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=878"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/878\/revisions"}],"predecessor-version":[{"id":2021,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/878\/revisions\/2021"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=878"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=878"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=878"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=878"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=878"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=878"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=878"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}