{"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\/sl\/thinning_ice_and_rising_sea_levels\/","title":{"rendered":"Tanj\u0161anje ledu in dvigovanje morske gladine"},"content":{"rendered":"
\n

Od izstrelitve aprila 2010 vesoljsko plovilo CryoSat agencije ESA kro\u017ei nad severnim in ju\u017enim polom na\u0161ega planeta. Njegova naloga je opazovanje sprememb v debelini ledu, ki prekriva ta obmo\u010dja.<\/p>\n

Po treh letih opazovanj je satelit CryoSat potrdil, da se prostornina arkti\u010dnega ledu (Severni pol) zmanj\u0161uje. CryoSat je prav tako pokazal, da zahodnoantarkti\u010dni ledeni pokrov (Ju\u017eni pol) vsako leto izgubi ve\u010d kot 150 kubi\u010dnih kilometrov ledu. To je enako plo\u0161\u010di ledu, \u0161iroki 1 km, globoki 1 km in dolgi 150 km!<\/p>\n<\/div>\n

Ogromne ledene odeje, ki prekrivajo polarne regije Zemlje, niso trajne. Raz\u0161irjajo se v hladnej\u0161ih obdobjih, znanih kot ledene dobe, in se kr\u010dijo, ko se temperature dvignejo ali se spremenijo lokalne razmere. To lahko vpliva celo na antarkti\u010dni ledeni pokrov, ki je debel skoraj 3 km.<\/p>\n

\"Change
Letna sprememba debeline ledenega pokrova<\/figcaption><\/figure>\n

V zahodni Antarktiki trenutno prihaja do hitre izgube ledu. Satelit CryoSat je pokazal, da se ve\u010dina tega dogaja na ledenikih, ki se stekajo v Amundsenovo morje. Hitrost tanj\u0161anja ledu se povzpne na 4\u20138 m na leto tam, kjer se ledeniki Pine Island, Thwaites in Smith lo\u010dijo od kopnega in za\u010dnejo plavati po oceanu.<\/p>\n

Menili so, da je taljenje v Zahodni Antarktiki med letoma 2005 in 2010 povzro\u010dilo globalno dvigovanje morske gladine za 0,28 mm na leto. Vendar pa najnovej\u0161i podatki satelita CryoSat ka\u017eejo, da je prispevek tega obmo\u010dja k dvigu morske gladine \u0161e ve\u010dji! To bi lahko bilo posledica tega, da se led tanj\u0161a hitreje, kot so znanstveniki prej menili, ali pa satelit CryoSat zagotavlja natan\u010dnej\u0161o sliko kot drugi sateliti!<\/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\/sl\/wp-json\/wp\/v2\/posts\/555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=555"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/555\/revisions"}],"predecessor-version":[{"id":4547,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/555\/revisions\/4547"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=555"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=555"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=555"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=555"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=555"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=555"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=555"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}