{"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\/sl\/huge_earthquake_changed_earth_s_gravity\/","title":{"rendered":"Ogromen potres je spremenil zemeljsko gravitacijo"},"content":{"rendered":"
\n

\u010ceprav se je satelit GOCE agencije ESA pred nekaj tedni pri ponovnem vstopu v Zemljino atmosfero razpadel, ta edinstvena misija \u0161e naprej prina\u0161a presene\u010denja. Najnovej\u0161e nepri\u010dakovano odkritje je, da je GOCE zaznal izrazito spremembo v lokalni gravitacijski sili po mo\u010dnem potresu, ki je leta 2011 prizadel Japonsko.<\/p>\n<\/div>\n

Satelit GOCE, ki je imel obliko konice pu\u0161\u010dice, je bil posebej zasnovan za izdelavo najbolj podrobnega in natan\u010dnega zemljevida nihanj zemeljskega gravitacijskega polja, kar jih je bilo kdajkoli izdelanih. Med letom po skoraj polarni orbiti so spremembe v gravitacijski sili planeta rahlo spreminjale pot aerodinami\u010dno oblikovanega satelita.<\/p>\n

Natan\u010dna analiza podatkov, ki jih je GOCE poslal med svojo \u0161tiriletno misijo, je znanstvenikom omogo\u010dila izdelavo izjemno natan\u010dnega modela (znanega kot \u2018geoid\u2019) zemeljske gravitacije. Vendar je izjemna ob\u010dutljivost njegovega gradiometra omogo\u010dila tudi preu\u010devanje drugih zna\u010dilnosti na\u0161ega planeta, kot so oceanski tokovi, spreminjanje morske gladine, vi\u0161ina zemeljske povr\u0161ine in plasti v zemeljski kamniti skorji. Satelit je celo zaznal vetrove v vesolju in zvo\u010dne valove, ki so se po ogromnem japonskem potresu 11. marca 2011 \u0161irili navzgor skozi atmosfero.<\/p>\n

\"Gravity
Gravitacijska brazgotina nad Japonsko<\/figcaption><\/figure>\n

Sedaj je GOCE ponovno presenetil vse, ko je zaznal spremembe v lokalnem gravitacijskem polju po istem potresu z magnitudo 9, ki je opusto\u0161il velik del Japonske. Nem\u0161ki in nizozemski znanstveniki so analizirali rezultate GOCE in ugotovili, da je potres o\u010ditno spremenil jakost gravitacije na otoku Hon\u0161u in na bli\u017enjem morskem dnu. To je prvi\u010d, da so podatki GOCE razkrili spremembe v \u010dasu.<\/p>\n

Poleg tega se velikost in lokacija sprememb gravitacije, ki jih je izmeril GOCE, razlikujeta od napovedi. Z zdru\u017eitvijo podatkov GOCE z informacijami iz nem\u0161ko-ameri\u0161ke misije GRACE in drugih virov bodo znanstveniki pridobili precej natan\u010dnej\u0161o sliko o tem, kaj se je zgodilo med podvodnim potresom.<\/p>","protected":false},"excerpt":{"rendered":"

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 […]<\/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\/sl\/wp-json\/wp\/v2\/posts\/554","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=554"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/554\/revisions"}],"predecessor-version":[{"id":4546,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/554\/revisions\/4546"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=554"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=554"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=554"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=554"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=554"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=554"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=554"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}