{"id":122301,"date":"2022-10-17T22:07:00","date_gmt":"2022-10-17T19:07:00","guid":{"rendered":"https:\/\/life.karpat.in.ua\/?p=122301"},"modified":"2022-10-17T19:11:02","modified_gmt":"2022-10-17T16:11:02","slug":"2015-ota-nem-volt-ekkora-most-264-millio-negyzetkilometeres-az-antarktisz-feletti-ozonlyuk","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=122301&lang=hu","title":{"rendered":"2015 \u00f3ta nem volt ekkora, most 26,4 milli\u00f3 n\u00e9gyzetkilom\u00e9teres az Antarktisz feletti \u00f3zonlyuk"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El\u00e9rte \u00e9ves maximum\u00e1t az Antarktisz felett l\u00e9v\u0151 \u00f3zonlyuk, amit a NASA is hosszabb ideje tanulm\u00e1nyoz. Adataik szerint \u2013 der\u00fcl ki az IFLScience h\u00edr\u00e9b\u0151l \u2013 a ter\u00fclet id\u00e9n okt\u00f3ber 5-\u00e9n 26,4 milli\u00f3 n\u00e9gyzetkilom\u00e9teres volt, ami meghaladja a 2015-\u00f6s rekord\u00e9rt\u00e9ket is. Agg\u00f3dni ugyanakkor nem kell: b\u00e1r ez m\u00e1r a harmadik egym\u00e1st k\u00f6vet\u0151 \u00e9v, amikor az \u00f3zonlyuk ideiglenesen a megszokottn\u00e1l nagyobb m\u00e9ret\u0171 lesz, a trendvonal \u00f6sszess\u00e9g\u00e9ben azt mutatja, hogy tov\u00e1bbra is zsugorodik.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"370\" src=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2022\/10\/ozonjuk.jpg\" alt=\"\" class=\"wp-image-122302\" srcset=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2022\/10\/ozonjuk.jpg 800w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2022\/10\/ozonjuk-300x139.jpg 300w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2022\/10\/ozonjuk-768x355.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Paul Newman, a NASA Goddard \u0170rk\u00f6zpont bolyg\u00f3tudom\u00e1nyi munkat\u00e1rsa szerint a lyuk \u00e1ltal\u00e1ban augusztus \u00e9s okt\u00f3ber k\u00f6rny\u00e9ken kezd n\u00f6vekedni, de id\u00e9n egy kicsit hidegebb az id\u0151, \u00edgy a helyzet valamivel rosszabb. A kutat\u00f3 elmondta: a d\u00e9li sarkvid\u00e9k feletti \u00f3zonr\u00e9teg cs\u00f6kken\u00e9s\u00e9t azok a sztratoszf\u00e9r\u00e1ban l\u00e9v\u0151 kl\u00f3rvegy\u00fcletek okozz\u00e1k, amik nagy r\u00e9sz\u00e9\u00e9rt a kl\u00f3r-fluor-sz\u00e9nhidrog\u00e9nek (CFC-k) felel\u0151sek. A hideg id\u0151 pedig \u2013 egy bizonyos felh\u0151t\u00edpus \u00e9s a k\u00e9miai reakci\u00f3k miatt is \u2013 feler\u0151s\u00edtheti ezt a folyamatot.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A NASA m\u00e9r\u00e9sei azt mutatt\u00e1k, hogy az \u00f3zonlyuk okt\u00f3ber 11-re 22,67 milli\u00f3 n\u00e9gyzetkilom\u00e9terre zsugorodott.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Az \u00f3zon minim\u00e1lis vastags\u00e1ga okt\u00f3ber 1-j\u00e9n 97 Dobson-egys\u00e9g volt a d\u00e9li sarkvid\u00e9k felett. T\u00edz nappal k\u00e9s\u0151bb ez az \u00e9rt\u00e9k 105-re emelkedett. (A Dobson-egys\u00e9g az \u00f3zonr\u00e9teg oszlops\u0171r\u0171s\u00e9g\u00e9nek m\u00e9rt\u00e9kegys\u00e9ge.) \u00d6sszehasonl\u00edt\u00e1sk\u00e9ppen: a F\u00f6ldet 220 Dobson-egys\u00e9gben m\u00e9rhet\u0151 \u00f3zonr\u00e9teg veszi k\u00f6r\u00fcl.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Egyesek \u00fagy v\u00e9lik, hogy az alacsony h\u0151m\u00e9rs\u00e9klet mellett az egyes k\u00ednai gy\u00e1rak \u00e1ltal illeg\u00e1lisan haszn\u00e1lt CFC-k is felel\u0151sek lehetnek az \u00f3zonlyuk n\u00f6veked\u00e9s\u00e9\u00e9rt. Brian Toon, a Colorad\u00f3i Egyetem munkat\u00e1rsa szerint az ausztr\u00e1liai nagy erd\u0151t\u00fczek \u00e9s a tongai vulk\u00e1nkit\u00f6r\u00e9s is mind olyan jelens\u00e9gek, amik negat\u00edv hat\u00e1ssal voltak az \u00f3zonlyukra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Az Antarktisz feletti \u00f3zonlyuk m\u00e9rete 2000 szeptember\u00e9ben volt a legnagyobb, akkor el\u00e9rte a 29,9 milli\u00f3 n\u00e9gyzetkilom\u00e9tert.<\/p>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\"><strong><a href=\"https:\/\/hvg.hu\/tudomany\/20221017_ozonlyuk_merete_nasa_antarktisz#rss\" target=\"_blank\" rel=\"noreferrer noopener\">(hvg.hu)<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El\u00e9rte \u00e9ves maximum\u00e1t az Antarktisz felett l\u00e9v\u0151 \u00f3zonlyuk, amit a NASA is hosszabb ideje tanulm\u00e1nyoz. <\/p>\n","protected":false},"author":12,"featured_media":122302,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,49,592,598,39],"tags":[24362,4596],"class_list":["post-122301","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-hirek","category-tarsadalom","category-tudomany","category-vilag","tag-antarktisz","tag-ozonlyuk"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/122301","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=122301"}],"version-history":[{"count":1,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/122301\/revisions"}],"predecessor-version":[{"id":122303,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/122301\/revisions\/122303"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/122302"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=122301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=122301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=122301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}