{"id":554,"date":"2013-12-06T10:12:00","date_gmt":"2013-12-06T09:12:00","guid":{"rendered":"https:\/\/kids.esa.int\/huge_earthquake_changed_earth_s_gravity\/"},"modified":"2026-10-08T00:29:34","modified_gmt":"2026-10-07T22:29:34","slug":"huge_earthquake_changed_earth_s_gravity","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/huge_earthquake_changed_earth_s_gravity\/","title":{"rendered":"Obrovsk\u00e9 zem\u011bt\u0159esen\u00ed zm\u011bnilo zemskou gravitaci"},"content":{"rendered":"<div class=\"lede\">\n<p>A\u010dkoli satelit GOCE agentury ESA p\u0159ed n\u011bkolika t\u00fddny sho\u0159el p\u0159i n\u00e1vratu do zemsk\u00e9 atmosf\u00e9ry, tato jedine\u010dn\u00e1 mise st\u00e1le p\u0159in\u00e1\u0161\u00ed p\u0159ekvapen\u00ed. Nejnov\u011bj\u0161\u00edm ne\u010dekan\u00fdm objevem je, \u017ee GOCE zaznamenal v\u00fdraznou zm\u011bnu v lok\u00e1ln\u00ed s\u00edle gravitace po mohutn\u00e9m zem\u011bt\u0159esen\u00ed, kter\u00e9 v roce 2011 zas\u00e1hlo Japonsko.<\/p>\n<\/div>\n<p>Satelit GOCE, kter\u00fd m\u00e1 tvar \u0161ipky, byl speci\u00e1ln\u011b navr\u017een tak, aby vytvo\u0159il dosud nejpodrobn\u011bj\u0161\u00ed a nejp\u0159esn\u011bj\u0161\u00ed mapu odchylek v gravita\u010dn\u00edm poli Zem\u011b. B\u011bhem letu po t\u00e9m\u011b\u0159 pol\u00e1rn\u00ed ob\u011b\u017en\u00e9 dr\u00e1ze byla trajektorie tohoto aerodynamick\u00e9ho satelitu m\u00edrn\u011b ovliv\u0148ov\u00e1na zm\u011bnami gravita\u010dn\u00edho pole planety.<\/p>\n<p>D\u016fkladn\u00e1 anal\u00fdza dat, kter\u00e1 sonda GOCE zaslala b\u011bhem sv\u00e9 \u010dty\u0159let\u00e9 mise, umo\u017enila v\u011bdc\u016fm vytvo\u0159it mimo\u0159\u00e1dn\u011b p\u0159esn\u00fd model (zn\u00e1m\u00fd jako \u2018geoid\u2019) zemsk\u00e9 gravitace. D\u00edky mimo\u0159\u00e1dn\u00e9 citlivosti gradiometru bylo v\u0161ak mo\u017en\u00e9 studovat i dal\u0161\u00ed jevy na na\u0161\u00ed planet\u011b, jako jsou oce\u00e1nsk\u00e9 proudy, zm\u011bny hladiny mo\u0159e, v\u00fd\u0161ka zemsk\u00e9ho povrchu a vrstvy zemsk\u00e9 horninov\u00e9 k\u016fry. Sonda dokonce zaznamenala v\u011btry ve vesm\u00edru a zvukov\u00e9 vlny, kter\u00e9 se \u0161\u00ed\u0159ily atmosf\u00e9rou po obrovsk\u00e9m zem\u011bt\u0159esen\u00ed v Japonsku dne 11. b\u0159ezna 2011.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"4446\" data-credit=\"DGFI\/TU Delft\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2013\/12\/Gravity_scar_over_Japan2\" 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\/2013\/12\/gravity_scar_over_japan2\/17911676-2-eng-GB\/Gravity_scar_over_Japan.jpg\" alt=\"Gravity scar over Japan\"><figcaption>Jizva zp\u016fsoben\u00e1 gravitac\u00ed nad Japonskem<\/figcaption><\/figure>\n<p>Nyn\u00ed GOCE op\u011bt v\u0161echny p\u0159ekvapil, kdy\u017e zaznamenal zm\u011bny v m\u00edstn\u00edm gravita\u010dn\u00edm poli po stejn\u00e9m zem\u011bt\u0159esen\u00ed o s\u00edle 9 stup\u0148\u016f, kter\u00e9 zpusto\u0161ilo velkou \u010d\u00e1st Japonska. N\u011bme\u010dt\u00ed a nizozem\u0161t\u00ed v\u011bdci analyzovali v\u00fdsledky sondy GOCE a zjistili, \u017ee zem\u011bt\u0159esen\u00ed z\u0159eteln\u011b zm\u011bnilo s\u00edlu gravitace na ostrov\u011b Hon\u0161\u00fa a na nedalek\u00e9m mo\u0159sk\u00e9m dn\u011b. Je to poprv\u00e9, co data sondy GOCE odhalila zm\u011bny v pr\u016fb\u011bhu \u010dasu.<\/p>\n<p>Krom\u011b toho se rozsah a poloha zm\u011bn gravita\u010dn\u00edho pole nam\u011b\u0159en\u00fdch sondou GOCE li\u0161\u00ed od p\u016fvodn\u00edch p\u0159edpov\u011bd\u00ed. Spojen\u00edm dat ze sondy GOCE s informacemi z n\u011bmecko-americk\u00e9 mise GRACE a dal\u0161\u00edch zdroj\u016f z\u00edskaj\u00ed v\u011bdci mnohem p\u0159esn\u011bj\u0161\u00ed p\u0159edstavu o tom, co se b\u011bhem podmo\u0159sk\u00e9ho zem\u011bt\u0159esen\u00ed odehr\u00e1lo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Although ESA\u2019s GOCE satellite burned up during re-entry into Earth\u2019s atmosphere a few weeks ago, this unique mission keeps on springing surprises. The latest unexpected discovery is that GOCE detected [&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\/2013\/12\/goce\/17888098-2-eng-GB\/GOCE.jpg","esa_banner_description":"GOCE","esa_banner_credit":"ESA \/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2013\/12\/GOCE","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":[42,10,59],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-554","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-natural-disasters"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/554","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=554"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/554\/revisions"}],"predecessor-version":[{"id":4546,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/554\/revisions\/4546"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=554"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=554"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=554"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=554"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=554"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=554"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=554"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}