{"id":718,"date":"2012-03-27T12:48:00","date_gmt":"2012-03-27T10:48:00","guid":{"rendered":"https:\/\/kids.esa.int\/keeping_an_eye_from_the_sky_on_volcanoes\/"},"modified":"2026-10-08T00:31:30","modified_gmt":"2026-10-07T22:31:30","slug":"keeping_an_eye_from_the_sky_on_volcanoes","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/keeping_an_eye_from_the_sky_on_volcanoes\/","title":{"rendered":"A vulk\u00e1nok figyelemmel k\u00eds\u00e9r\u00e9se \u2013 az \u00e9gb\u0151l \u2013"},"content":{"rendered":"<div class=\"lede\">\n<p>Az Eyjafjallaj\u00f6kull vulk\u00e1n 2010-es kit\u00f6r\u00e9se Izlandon megmutatta nek\u00fcnk, hogy a vulk\u00e1nkit\u00f6r\u00e9sek s\u00falyos k\u00f6vetkezm\u00e9nyekkel j\u00e1rhatnak, \u00e9s t\u00f6bb ezer embert \u00e9rinthetnek. \u00c9ppen ez\u00e9rt rendk\u00edv\u00fcl fontosak azok a m\u0171holdak, amelyek figyelemmel k\u00eds\u00e9rik a vulk\u00e1nokat.<\/p>\n<\/div>\n<p>Sajnos a vil\u00e1g legt\u00f6bb vulk\u00e1nj\u00e1t nem figyelik megfelel\u0151en, s\u0151t, egy\u00e1ltal\u00e1n nem is figyelik \u0151ket! A Science Magazine-ban megjelent tanulm\u00e1nyb\u00f3l kider\u00fclt, hogy a vil\u00e1g 440 akt\u00edv vulk\u00e1nja k\u00f6z\u00fcl 384-et csak nagyon alapszint\u0171en figyelnek, vagy egy\u00e1ltal\u00e1n nem figyelnek. Ezen vulk\u00e1nok k\u00f6z\u00fcl 65-\u00f6t olyanul azonos\u00edtottak, amelyek komoly vesz\u00e9lyt jelentenek nagy n\u00e9pess\u00e9gcsoportokra.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"487\" data-credit=\"J. Biggs, University of Bristol\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/03\/Alutu_Volcano2\" 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\/2012\/03\/alutu_volcano2\/17870227-2-eng-GB\/Alutu_Volcano.jpg\" alt=\"Alutu Volcano\"><figcaption>Alutu vulk\u00e1n<\/figcaption><\/figure>\n<p>A F\u00f6ld-megfigyel\u0151 m\u0171holdak, p\u00e9ld\u00e1ul az ESA Envisat m\u0171holdja, az interferometrikus szintetikus apert\u00far\u00e1j\u00fa radar (InSAR) seg\u00edts\u00e9g\u00e9vel k\u00e9pesek \u00e9szlelni a megfigyel\u00e9s alatt nem \u00e1ll\u00f3 vulk\u00e1nokn\u00e1l bek\u00f6vetkez\u0151 v\u00e1ltoz\u00e1sokat. Az InSAR egy t\u00e1v\u00e9rz\u00e9kel\u00e9si technika, amelynek sor\u00e1n k\u00e9t vagy t\u00f6bb radarfelv\u00e9telt k\u00e9sz\u00edtenek ugyanarr\u00f3l a ter\u00fcletr\u0151l, majd ezeket \u00f6sszeillesztik. \u00cdgy l\u00e1thatjuk, hogy t\u00f6rt\u00e9nt-e b\u00e1rmilyen felsz\u00edni v\u00e1ltoz\u00e1s az els\u0151 \u00e9s a m\u00e1sodik felv\u00e9tel k\u00e9sz\u00edt\u00e9se k\u00f6z\u00f6tti id\u0151 alatt. Ezek a v\u00e1ltoz\u00e1sok sziv\u00e1rv\u00e1nysz\u00edn\u0171 mint\u00e1zatokk\u00e9nt jelennek meg az \u00faj, \u00f6sszeillesztett k\u00e9pen.<\/p>\n<p>Ezeknek a m\u0171holdas megfigyel\u00e9seknek k\u00f6sz\u00f6nhet\u0151en ma m\u00e1r tudjuk, hogy sz\u00e1mos olyan vulk\u00e1n, amelyet kor\u00e1bban szunnyad\u00f3k\u00e9nt tartottunk sz\u00e1mon, jelenleg is nyugtalans\u00e1g jeleit mutatja.<\/p>\n<p>Az \u00faj Sentinel m\u0171holdak v\u00e1rhat\u00f3an a k\u00f6vetkez\u0151 20 \u00e9v sor\u00e1n hatnaponta fognak adatokat gy\u0171jteni az \u00f6sszes sz\u00e1razf\u00f6ldr\u0151l, bele\u00e9rtve a vulk\u00e1nokat is. Az els\u0151 ilyen m\u0171holdat j\u00f6v\u0151re, 2013-ban fogj\u00e1k p\u00e1ly\u00e1ra \u00e1ll\u00edtani. Ez el\u0151seg\u00edti a vil\u00e1g sz\u00e1mos vulk\u00e1nj\u00e1nak megfigyel\u00e9s\u00e9t.<\/p>\n<p>A tud\u00f3sok m\u0171holdak seg\u00edts\u00e9g\u00e9vel pr\u00f3b\u00e1lj\u00e1k meg\u00e9rteni, hogy a vulk\u00e1ni aktivit\u00e1s mikor vezet kit\u00f6r\u00e9shez. A m\u0171holdas adatok emellett seg\u00edthetnek az orsz\u00e1goknak abban, hogy evaku\u00e1ci\u00f3s terveket dolgozzanak ki a vulk\u00e1nok k\u00f6rny\u00e9k\u00e9n \u00e9l\u0151, \u00e9letvesz\u00e9lyben l\u00e9v\u0151 emberek sz\u00e1m\u00e1ra.<\/p>","protected":false},"excerpt":{"rendered":"<p>The eruption of the Eyjafjallaj\u00f6kull volcano in Iceland in 2010 showed us that volcanic eruptions can have major consequences, affecting thousands of people. That is why satellites that keep an [&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\/2011\/06\/puzzle_-_volcanoes2\/17895497-2-eng-GB\/Puzzle_-_Volcanoes.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/06\/Puzzle_-_Volcanoes2","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-718","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\/718","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=718"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/718\/revisions"}],"predecessor-version":[{"id":4646,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/718\/revisions\/4646"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=718"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=718"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=718"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=718"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=718"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=718"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=718"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}