{"id":459,"date":"2016-08-01T11:19:00","date_gmt":"2016-08-01T09:19:00","guid":{"rendered":"https:\/\/kids.esa.int\/greenland_s_melting_ice_revealed_by_esa_satellite\/"},"modified":"2026-10-08T00:28:27","modified_gmt":"2026-10-07T22:28:27","slug":"greenland_s_melting_ice_revealed_by_esa_satellite","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/de\/greenland_s_melting_ice_revealed_by_esa_satellite\/","title":{"rendered":"ESA-Satellit erfasst Abschmelzen des Gr\u00f6nlandeises"},"content":{"rendered":"<div class=\"lede\">\n<p>Der ESA-Satellit CryoSat misst seit geraumer Zeit die Dicke des gr\u00f6nl\u00e4ndischen Eisschilds und die von ihm erfassten Daten zeigen, wie stark das Eis bereits geschmolzen ist. Dieses Schmelzwasser gelangt in die Ozeane und l\u00e4sst den Meeresspiegel ansteigen. Das ist besorgniserregend, denn das Anschwellen der Meere bringt viele Probleme mit sich, zum Beispiel die \u00dcberflutung von K\u00fcstenst\u00e4dten auf der ganzen Welt.<\/p>\n<\/div>\n<p>Die Wissenschaft geht davon aus, dass der globale Klimawandel das Gr\u00f6ndlandeis zum Schmelzen bringt: Auf der Erde wird es w\u00e4rmer und Eis schmilzt bei W\u00e4rme. Warum sich die Erde erw\u00e4rmt, ist schwer zu erkl\u00e4ren, aber es wird vermutet, dass Auto- und Fabrikabgase mitverantwortlich sind.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Planetary Visions\/CPOM\/UCL\/ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/07\/CryoSat_has_been_measuring_the_thickness_of_ice\" 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\/2016\/07\/cryosat_has_been_measuring_the_thickness_of_ice\/17888542-2-eng-GB\/CryoSat_has_been_measuring_the_thickness_of_ice.jpg\" alt=\"CryoSat has been measuring the thickness of ice\"><\/figure>\n<p>CryoSat misst die Dicke der ausgedehnten gr\u00f6nl\u00e4ndischen Gletscher sehr genau. Dazu nutzt der Satellit ein spezielles H\u00f6henmessinstrument, ein sogenanntes Radar-Altimeter. Wenn sich CryoSat \u00fcber Gr\u00f6nland befindet, sendet das Radar-Altimeter kurze Radarimpulse direkt nach unten auf das Eis. Der Impuls prallt vom Eis ab und das Instrument f\u00e4ngt dieses \u201eEcho\u201c auf. Es misst die Laufzeit des Signals vom Satelliten zum Boden und zur\u00fcck und leitet daraus die H\u00f6he der Eisdecke ab. CryoSat f\u00fchrt diese Messungen auch an den Eisr\u00e4ndern durch, denn diese sind von Ver\u00e4nderungen am st\u00e4rksten betroffen.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Library image\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/07\/Ice_is_important_for_life_on_Earth_and_maintaining_a_healthy_climate\" 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\/2016\/07\/ice_is_important_for_life_on_earth_and_maintaining_a_healthy_climate\/17885693-2-eng-GB\/Ice_is_important_for_life_on_Earth_and_maintaining_a_healthy_climate.jpg\" alt=\"Ice is important for life on Earth and maintaining a healthy climate\"><\/figure>\n<p>CryoSat ist nur einer von vielen Satelliten in der Erdumlaufbahn, die uns helfen, unseren Planeten zu beobachten und besser zu verstehen. Schlie\u00dflich kann man Probleme nur l\u00f6sen, wenn man wei\u00df, dass es sie gibt! Dank CryoSat wissen wir recht genau, wie die Eisschmelze in Gr\u00f6nland zum Anstieg des Meeresspiegels beitr\u00e4gt. Jetzt k\u00f6nnen wir versuchen, das Problem anzugehen.<\/p>\n<p><b>Interessante Tatsache:<\/b> CryoSat umkreist die Erde in einer H\u00f6he von etwa 717 km \u2013 fast doppelt so hoch wie die Internationale Raumstation!<\/p>","protected":false},"excerpt":{"rendered":"<p>An ESA satellite called CryoSat has been measuring the amount of ice in Greenland. It has discovered that a lot of ice has been melting. The solid ice is turning [&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\/2016\/07\/cryosat_is_in_orbit_around_earth\/17911898-2-eng-GB\/CryoSat_is_in_orbit_around_Earth.jpg","esa_banner_description":"CryoSat is in orbit around Earth","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/07\/CryoSat_is_in_orbit_around_Earth","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-459","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\/de\/wp-json\/wp\/v2\/posts\/459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/comments?post=459"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/459\/revisions"}],"predecessor-version":[{"id":4493,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/459\/revisions\/4493"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/media?parent=459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/categories?post=459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/tags?post=459"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/panel?post=459"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/language?post=459"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/age?post=459"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/duration?post=459"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/resource_type?post=459"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/audience?post=459"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/wf_post_folders?post=459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}