{"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\/ro\/cryosat_europe_s_ice_explorer\/","title":{"rendered":"Cryosat: exploratorul european al ghe\u021burilor"},"content":{"rendered":"
\n

Majoritatea oamenilor de \u0219tiin\u021b\u0103 sunt de acord c\u0103 planeta noastr\u0103 se \u00eenc\u0103lze\u0219te. Primii 10 ani ai acestui secol au constituit cea mai cald\u0103 decad\u0103 \u00eenregistrat\u0103 vreodat\u0103. Este probabil ca acest fenomen s\u0103 provoace schimb\u0103ri importante \u00een climatul Europei. Dar ce se \u00eent\u00e2mpl\u0103 cu calotele polare? Se tope\u0219te ghea\u021ba? Dac\u0103 da, ce efect va avea acest lucru asupra climatului global \u0219i asupra nivelului m\u0103rii?<\/p>\n<\/div>\n

Un satelit european ofer\u0103 acum c\u00e2teva r\u0103spunsuri. Lansat pe 8 aprilie 2010, Cryosat survoleaz\u0103 polii la o altitudine de 720 km.<\/p>\n

Folosind un radar de ultim\u0103 genera\u021bie, Cryosat m\u0103soar\u0103 varia\u021biile minime ale grosimii ghe\u021bii prin reflectarea semnalelor radio de pe suprafa\u021b\u0103 \u0219i captarea ecourilor. Dac\u0103 ecourile se \u00eentorc mai repede, \u00eenseamn\u0103 c\u0103 suprafa\u021ba ghe\u021bii este mai \u00eenalt\u0103.<\/p>\n

Cryosat este capabil s\u0103 detecteze varia\u021bii de mai pu\u021bin de 2 cm pe an \u00een \u00een\u0103l\u021bimea ghe\u021bii plutitoare de pe Oceanul Arctic. Deasupra imenselor calote glaciare de pe continentul Antarctica, acesta poate m\u0103sura varia\u021bii anuale de mai pu\u021bin de 2 mm.<\/p>\n

Aceste rezultate \u00eei ajut\u0103 pe oamenii de \u0219tiin\u021b\u0103 s\u0103 afle dac\u0103 ghea\u021ba marin\u0103 din Arctica se fragmenteaz\u0103 \u0219i se tope\u0219te. De asemenea, ele arat\u0103 dac\u0103 calotele glaciare care acoper\u0103 masa continental\u0103 a Antarcticii \u0219i marea din jur se mic\u0219oreaz\u0103 sau se extind. Acest lucru este important deoarece nivelul m\u0103rii ar putea cre\u0219te cu mul\u021bi metri \u00een cazul \u00een care calotele glaciare s-ar topi. Multe ora\u0219e \u0219i \u021b\u0103ri situate la altitudine joas\u0103 ar putea fi atunci inundate.<\/p>\n

CryoSat este a treia misiune \u201eEarth Explorer\u201d care urmeaz\u0103 s\u0103 fie lansat\u0103 \u00een cadrul programului \u201eLiving Planet\u201d al ESA (dup\u0103 GOCE, misiunea ESA dedicat\u0103 gravita\u021biei, \u0219i SMOS, misiunea ESA dedicat\u0103 apei).<\/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\/ro\/wp-json\/wp\/v2\/posts\/878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=878"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/878\/revisions"}],"predecessor-version":[{"id":2021,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/878\/revisions\/2021"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=878"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=878"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=878"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=878"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=878"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=878"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=878"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}