{"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\/et\/huge_earthquake_changed_earth_s_gravity\/","title":{"rendered":"V\u00f5imas maav\u00e4rin muutis Maa gravitatsiooni"},"content":{"rendered":"
\n

Kuigi ESA satelliit GOCE p\u00f5les m\u00f5ni n\u00e4dal tagasi Maa atmosf\u00e4\u00e4ri sisenemisel \u00e4ra, pakub see ainulaadne missioon ikka veel \u00fcllatusi. Viimane ootamatu avastus on see, et GOCE tuvastas m\u00e4rkimisv\u00e4\u00e4rse muutuse kohalikus gravitatsioonitugevuses p\u00e4rast 2011. aastal Jaapanit tabanud v\u00f5imsat maav\u00e4rinat.<\/p>\n<\/div>\n

Noolipea kujuline GOCE oli spetsiaalselt kavandatud selleks, et koostada k\u00f5ige \u00fcksikasjalikum ja t\u00e4pseim kaart Maa gravitatsiooniv\u00e4lja k\u00f5ikumistest, mis kunagi on koostatud. Kui see lendas peaaegu polaarsel orbiidil, muutus voolujoonelise satelliidi trajektoor veidi planeedi gravitatsioonij\u00f5u muutuste t\u00f5ttu.<\/p>\n

GOCE poolt oma nelja-aastase missiooni jooksul saadetud andmete hoolikas anal\u00fc\u00fcs on v\u00f5imaldanud teadlastel luua Maa gravitatsiooni kohta m\u00e4rkimisv\u00e4\u00e4rselt t\u00e4pse mudeli (tuntud kui \u2018geoid\u2019). Kuid gradiomeetri m\u00e4rkimisv\u00e4\u00e4rne tundlikkus v\u00f5imaldas uurida ka meie planeedi muid omadusi, nagu ookeanivoolud, muutuv merepinna tase, maapinna k\u00f5rgus ja Maa kivikoore kihid. See tuvastas isegi kosmoses puhuvaid tuuli ja helilaineid, mis levisid atmosf\u00e4\u00e4ri kaudu \u00fclespoole p\u00e4rast 11. m\u00e4rtsil 2011 toimunud suurt Jaapani maav\u00e4rinat.<\/p>\n

\"Gravity
Raskusj\u00e4lg Jaapani kohal<\/figcaption><\/figure>\n

N\u00fc\u00fcd on GOCE k\u00f5iki taas \u00fcllatanud, tuvastades muutusi kohalikus gravitatsiooniv\u00e4ljas p\u00e4rast sama 9-magnituudilist maav\u00e4rinat, mis laastas suure osa Jaapanist. Saksa ja Hollandi teadlased on anal\u00fc\u00fcsinud GOCE tulemusi ja avastanud, et maav\u00e4rin muutis selgelt gravitatsiooni tugevust Honshu saarel ja selle l\u00e4hedal asuval ookeanip\u00f5hjal. See on esimene kord, kui GOCE andmed on n\u00e4idanud muutusi aja jooksul.<\/p>\n

Lisaks erinevad GOCE poolt m\u00f5\u00f5detud gravitatsioonimuutuste suurus ja asukoht prognoosidest. Kombineerides GOCE andmeid Saksamaa-USA GRACE-missiooni ja muude allikate teabega, saavad teadlased palju t\u00e4psema \u00fclevaate sellest, mis veealuse maav\u00e4rina ajal toimus.<\/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\/et\/wp-json\/wp\/v2\/posts\/554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=554"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/554\/revisions"}],"predecessor-version":[{"id":4546,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/554\/revisions\/4546"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=554"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=554"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=554"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=554"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=554"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=554"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=554"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}