{"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\/hu\/esa_s_gravity_explorer\/","title":{"rendered":"Az ESA Gravity Explorer programja"},"content":{"rendered":"
\n

Az ESA egy \u00faj tanulm\u00e1nya szerint a 2004. december 26-i szum\u00e1trai f\u00f6ldreng\u00e9s nemcsak hatalmas ter\u00fcletet puszt\u00edtott el, hanem kiss\u00e9 megv\u00e1ltoztatta az adott ter\u00fclet gravit\u00e1ci\u00f3s mez\u0151j\u00e9t is.<\/p>\n<\/div>\n

Amikor a f\u00f6ldreng\u00e9s sor\u00e1n az Indiai-\u00f3ce\u00e1n fenek\u00e9n egy 1000 km hossz\u00fa t\u00f6r\u00e9svonal ment\u00e9n elmozdul\u00e1s t\u00f6rt\u00e9nt, egy 6 m\u00e9ter magas kiugr\u00e1s keletkezett. Ez a hatalmas k\u0151zetmozg\u00e1s pillanatok alatt megv\u00e1ltoztatta a helyi gravit\u00e1ci\u00f3t.<\/p>\n

Ez nem szokatlan. A m\u0171holdas adatok alapj\u00e1n k\u00e9sz\u00fclt t\u00e9rk\u00e9pek azt mutatj\u00e1k, hogy a gravit\u00e1ci\u00f3s er\u0151 helyenk\u00e9nt elt\u00e9r\u0151. Ennek egyik oka a F\u00f6ld forg\u00e1sa. Ahogy a bolyg\u00f3 forog, az Egyenl\u00edt\u0151n\u00e9l kifel\u00e9 domborodik. Mivel a F\u00f6ld az Egyenl\u00edt\u0151n\u00e9l 42 km-rel sz\u00e9lesebb, a gravit\u00e1ci\u00f3s er\u0151 ott gyeng\u00e9bb, mint a sarkokn\u00e1l.<\/p>\n

A magas hegyek, a m\u00e9ly \u00f3ce\u00e1ni \u00e1rokv\u00f6lgyek \u00e9s a F\u00f6ld belsej\u00e9ben tal\u00e1lhat\u00f3 k\u00fcl\u00f6nb\u00f6z\u0151 k\u0151zetfajt\u00e1k is hat\u00e1ssal vannak erre. M\u00e9g az \u00e1rap\u00e1ly, az \u00f3ce\u00e1ni \u00e1ramlatok \u00e9s a j\u00e9gtakar\u00f3k olvad\u00e1sa is okozhatja a gravit\u00e1ci\u00f3s er\u0151 \u00e9rt\u00e9k\u00e9nek v\u00e1ltoz\u00e1s\u00e1t.<\/p>\n

\"Artist's
A GOCE m\u0171v\u00e9szi \u00e1br\u00e1zol\u00e1sa<\/figcaption><\/figure>\n

Jelenleg ezeket a kis gravit\u00e1ci\u00f3s eltol\u00f3d\u00e1sokat neh\u00e9z m\u00e9rni, de ez megv\u00e1ltozik az ESA Gravity Field and Ocean Circulation Explorer (GOCE) m\u0171holdj\u00e1nak j\u00f6v\u0151 \u00e9vi p\u00e1ly\u00e1ra \u00e1ll\u00edt\u00e1s\u00e1val.<\/p>\n

Az \u00e9rz\u00e9keny \u0171reszk\u00f6z rendk\u00edv\u00fcl r\u00e9szletesen fogja vizsg\u00e1lni a gravit\u00e1ci\u00f3t. Amint \u00e1thalad az er\u0151sebb \u00e9s gyeng\u00e9bb gravit\u00e1ci\u00f3s vonz\u00e1s\u00fa r\u00e9gi\u00f3k felett, az \u0171reszk\u00f6z fel-le fog mozogni, \u00e9s m\u0171szerei r\u00f6gz\u00edtik az \u00fatvonala ment\u00e9n v\u00e1ltoz\u00f3 gravit\u00e1ci\u00f3s mez\u0151t.<\/p>\n

Ez lehet\u0151v\u00e9 teszi a tud\u00f3sok sz\u00e1m\u00e1ra, hogy megm\u00e9rj\u00e9k, mennyi anyag mozog el \u2013 ak\u00e1r hirtelen, p\u00e9ld\u00e1ul egy f\u00f6ldreng\u00e9s sor\u00e1n, ak\u00e1r fokozatosan, mint p\u00e9ld\u00e1ul egy olvad\u00f3 j\u00e9gtakar\u00f3 eset\u00e9ben. Az adatok m\u00e9g az \u00e9ghajlatv\u00e1ltoz\u00e1ssal \u00f6sszef\u00fcgg\u0151 \u00f3ce\u00e1ni \u00e1raml\u00e1sok v\u00e1ltoz\u00e1sainak felt\u00e1r\u00e1s\u00e1ban is seg\u00edts\u00e9get ny\u00fajtanak.<\/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\/hu\/wp-json\/wp\/v2\/posts\/877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=877"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/877\/revisions"}],"predecessor-version":[{"id":4715,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/877\/revisions\/4715"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=877"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=877"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=877"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=877"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=877"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=877"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=877"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}