{"id":877,"date":"2005-06-30T09:24:00","date_gmt":"2005-06-30T07:24:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_s_gravity_explorer\/"},"modified":"2026-10-08T00:33:17","modified_gmt":"2026-10-07T22:33:17","slug":"esa_s_gravity_explorer","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/esa_s_gravity_explorer\/","title":{"rendered":"ESA Gravity Explorer"},"content":{"rendered":"
\n

ESA uue uuringu kohaselt ei p\u00f5hjustanud 26. detsembril 2004 toimunud Sumatra maav\u00e4rin mitte ainult tohutut laastamist, vaid muutis ka veidi selle piirkonna gravitatsiooni.<\/p>\n<\/div>\n

Kui maav\u00e4rina ajal nihkus India ookeani p\u00f5hja piki 1000 km pikkust murrangujoont, tekkis 6 meetri k\u00f5rgune kalju. See tohutu kivimite liikumine muutis kohaliku raskusj\u00f5u hetkega.<\/p>\n

See ei ole midagi ebatavalist. Satelliidiandmete p\u00f5hjal koostatud kaardid n\u00e4itavad, et gravitatsioonij\u00f5ud varieerub kohati. \u00dcks selle p\u00f5hjuseid on Maa p\u00f6\u00f6rlemine. Kui planeet p\u00f6\u00f6rleb, paisub see ekvaatoril v\u00e4ljapoole. Kuna Maa on ekvaatoril 42 km laiem, on gravitatsioonij\u00f5ud seal n\u00f5rgem kui poolustel.<\/p>\n

M\u00f5ju avaldavad ka k\u00f5rged m\u00e4ed, s\u00fcgavad ookeanil\u00f5hed ja Maa sisemuses leiduvad erinevad kivimit\u00fc\u00fcbid. Isegi loodete, ookeanivoolude ja sulavate j\u00e4\u00e4kilpide m\u00f5jul muutub raskusj\u00f5u v\u00e4\u00e4rtus.<\/p>\n

\"Artist's
GOCE kunstilise kujutise<\/figcaption><\/figure>\n

Praegu on selliseid v\u00e4ikeseid gravitatsioonimuutusi raske m\u00f5\u00f5ta, kuid see muutub j\u00e4rgmisel aastal, kui ESA k\u00e4ivitab oma gravitatsiooniv\u00e4lja ja ookeani ringluse uurimissatelliidi (GOCE).<\/p>\n

See tundlik kosmoselaev uurib gravitatsiooni v\u00e4ga \u00fcksikasjalikult. Kui kosmoselaev l\u00e4bib piirkondi, kus gravitatsioon on tugevam v\u00f5i n\u00f5rgem, hakkab see \u00fcles-alla h\u00fcppama ning selle m\u00f5\u00f5teriistad registreerivad teekonna jooksul muutuva gravitatsiooniv\u00e4lja.<\/p>\n

See v\u00f5imaldab teadlastel m\u00f5\u00f5ta, kui palju materjali liigub \u00fcmber \u2013 kas j\u00e4rsult maav\u00e4rina korral v\u00f5i j\u00e4rk-j\u00e4rgult, nagu n\u00e4iteks sulava j\u00e4\u00e4kilbi puhul. Need andmed aitavad isegi selgitada v\u00e4lja kliimamuutusega seotud muutusi ookeani ringluses.<\/p>","protected":false},"excerpt":{"rendered":"

According to a new ESA study, the Sumatran earthquake of 26 December 2004 not only devastated a huge area, but it slightly altered the gravity of that area. When the […]<\/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\/04\/ers-2_composite_highlighting_tsunami_damage3\/17891576-2-eng-GB\/ERS-2_composite_highlighting_tsunami_damage.jpg","esa_banner_description":"ERS-2 composite highlighting tsunami damage","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/04\/ERS-2_composite_highlighting_tsunami_damage3","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-877","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\/877","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=877"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/877\/revisions"}],"predecessor-version":[{"id":4715,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/877\/revisions\/4715"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=877"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=877"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=877"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=877"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=877"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=877"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=877"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}