{"id":13092,"date":"2021-07-08T11:00:00","date_gmt":"2021-07-08T14:00:00","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=13092"},"modified":"2023-01-05T13:48:01","modified_gmt":"2023-01-05T16:48:01","slug":"arctic-sea-ice-thinning-in-the-fast-lane","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/hu\/sarki-tengeri-jeg-elvekonyodas-a-gyors-savban\/","title":{"rendered":"A sarkvid\u00e9ki tengeri j\u00e9g v\u00e9konyod\u00e1sa, a gyors\u00edt\u00f3s\u00e1vban"},"content":{"rendered":"

Az \u00c9szaki-sarkvid\u00e9k a v\u00e1rtn\u00e1l k\u00e9tszer gyorsabban v\u00e9konyodik.<\/strong><\/h2>\n\n\n\n

Egy friss\u00edtett modell szerint a v\u00e1rtn\u00e1l k\u00e9tszer gyorsabban v\u00e9konyodik a tengeri j\u00e9g az \u00c9szaki-sarkvid\u00e9k partjai ment\u00e9n.<\/p>\n\n\n\n

A term\u00e9szet \u00e1llapota a glob\u00e1lis felmeleged\u00e9s \u00e9s az \u00e9ghajlati v\u00e1ltoz\u00e1sok fokoz\u00f3d\u00e1s\u00e1val romlik. A sarki j\u00e9g gyors olvad\u00e1sa a biol\u00f3giai sokf\u00e9les\u00e9g cs\u00f6kken\u00e9s\u00e9t okozza, \u00e9s aggodalomra ad okot a tengerszint miatt is.<\/p>\n\n\n\n

N\u00e9zd meg Mind the Graph Gal\u00e9ria<\/a> a tengeri j\u00e9ggel kapcsolatos illusztr\u00e1ci\u00f3k\u00e9rt. Kattintson az al\u00e1bbi k\u00e9pre!<\/p>\n\n\n\n

\"tengeri<\/a><\/figure>\n\n\n\n

A tengeri j\u00e9g vastags\u00e1ga barom\u00e9terk\u00e9nt szolg\u00e1l az \u00c9szaki-sarkvid\u00e9k \u00e1llapot\u00e1nak meg\u00e9rt\u00e9s\u00e9hez. Min\u00e9l vastagabb a j\u00e9g, ann\u00e1l nagyobb a h\u0151szigetel\u0151 hat\u00e1sa, amely megakad\u00e1lyozza, hogy t\u00e9len emelkedjen az \u00f3ce\u00e1n felsz\u00edni h\u0151m\u00e9rs\u00e9klete, ny\u00e1ron pedig v\u00e9delmet ny\u00fajt a h\u0151s\u00e9g ellen.<\/p>\n\n\n\n

A sarkvid\u00e9ki ny\u00e1ri olvad\u00e1st a v\u00e9konyabb j\u00e9g is kev\u00e9sb\u00e9 tudja fenntartani.<\/p>\n\n\n\n

Ez\u00e9rt a kutat\u00f3k ki\u00e9rt\u00e9kelt\u00e9k egy \u00fajonnan kifejlesztett sz\u00e1m\u00edt\u00f3g\u00e9pes program eredm\u00e9nyeit, amelynek c\u00e9lja az \u00e9ves h\u00f3vastags\u00e1g k\u00fcl\u00f6nbs\u00e9g\u00e9nek becsl\u00e9se volt, \u00e9s azonos\u00edtott\u00e1k a tengeri j\u00e9g elv\u00e9konyod\u00e1sa<\/strong> a v\u00e1rtn\u00e1l sokkal jobban felgyorsult.<\/p>\n\n\n\n

A tanulm\u00e1ny c\u00e9lja \u00e9s c\u00e9lkit\u0171z\u00e9sei<\/strong><\/h2>\n\n\n\n

Mivel a tengeri j\u00e9gtakar\u00f3 m\u00e9rs\u00e9kli a leveg\u0151-v\u00edz cser\u00e9t \u00e9s a h\u0151\u00e1tad\u00e1st az \u00f3ce\u00e1nok \u00e9s a l\u00e9gk\u00f6r k\u00f6z\u00f6tt, ez hat\u00e1ssal van a region\u00e1lis \u00f6kosziszt\u00e9m\u00e1kra, a f\u00e9lg\u00f6mbi szelek mint\u00e1zat\u00e1ra \u00e9s a glob\u00e1lis \u00e9ghajlatra.<\/p>\n\n\n\n

A vastagabb tengeri j\u00e9g n\u00f6veli a h\u0151szigetel\u00e9st, \u00edgy a h\u0151m\u00e9rs\u00e9klet t\u00e9len alacsonyabb marad.<\/p>\n\n\n\n

A h\u00f3 felhalmoz\u00f3d\u00e1sa sor\u00e1n a tengeri j\u00e9g vastags\u00e1ga hat\u00e1rozza meg a tengeri j\u00e9g v\u00edzfelsz\u00edn alatti m\u00e9lys\u00e9g\u00e9t is, ami jelent\u0151sen hozz\u00e1j\u00e1rul a tengeri j\u00e9g termodinamikai n\u00f6veked\u00e9s\u00e9hez. A tengeri j\u00e9g vastags\u00e1ga ez\u00e9rt a r\u00e9gi\u00f3 eg\u00e9szs\u00e9gi \u00e1llapot\u00e1nak fontos mutat\u00f3ja. <\/p>\n\n\n\n

A kutat\u00f3k a CryoSat-2<\/a> m\u0171holdas radarral a tengeri j\u00e9g vastags\u00e1g\u00e1nak m\u00e9r\u00e9s\u00e9re.<\/p>\n\n\n\n

A c\u00e9l az volt, hogy \u00f6sszehasonl\u00edts\u00e1k a r\u00e9gi modellb\u0151l rendelkez\u00e9sre \u00e1ll\u00f3 adatokat egy \u00faj modellel, amely az \u00e9ghajlatv\u00e1ltoz\u00e1st is mag\u00e1ban foglalja.<\/p>\n\n\n\n

A j\u00e9g v\u00edz feletti magass\u00e1g\u00e1t a radarhull\u00e1mok visszaver\u0151d\u00e9s\u00e9nek id\u0151z\u00edt\u00e9s\u00e9vel lehet meghat\u00e1rozni, ami a j\u00e9g vastags\u00e1g\u00e1nak becsl\u00e9s\u00e9t eredm\u00e9nyezi.<\/p>\n\n\n\n

A SnowModel-LG-t, egy Lagrange-f\u00e9le h\u00f3felhalmoz\u00f3d\u00e1si modellt haszn\u00e1lt\u00e1k a teljes h\u00f3vastags\u00e1g \u00e9s h\u00f3s\u0171r\u0171s\u00e9g el\u0151rejelz\u00e9s\u00e9re a Jeges-tenger k\u00f6r\u00fcli k\u00fcl\u00f6nb\u00f6z\u0151 helyeken a sz\u00e9l, a h\u0151m\u00e9rs\u00e9klet, a csapad\u00e9k \u00e9s a j\u00e9gmozg\u00e1s elemz\u00e9s\u00e9nek figyelembev\u00e9tel\u00e9vel.<\/p>\n\n\n\n

Ezt k\u00f6vette a h\u00f3modell eredm\u00e9nyeinek kombin\u00e1l\u00e1sa a m\u0171holdas radarok adataival, hogy megbecs\u00fclj\u00fck, milyen gyorsan cs\u00f6kken a tengeri j\u00e9g vastags\u00e1ga az \u00c9szaki-sarkvid\u00e9ken, \u00e9s hogyan v\u00e1ltozhat az id\u0151 m\u00fal\u00e1s\u00e1val.<\/p>\n\n\n\n

\"nagy<\/a>
A k\u00e9p forr\u00e1sa: Unsplash<\/a> a Cassie Matias<\/a><\/figcaption><\/figure>\n\n\n\n

Ennek eredm\u00e9nyek\u00e9ppen:<\/strong><\/h2>\n\n\n\n

A peremtengerek tengeri j\u00e9gvastags\u00e1g\u00e1nak v\u00e1ltoz\u00e9konys\u00e1g\u00e1hoz a h\u00f3takar\u00f3 v\u00e1ltoz\u00e9konys\u00e1g\u00e1nak figyelembev\u00e9tel\u00e9vel 50 sz\u00e1zal\u00e9kos t\u00e9nyez\u0151t adtak hozz\u00e1.<\/p>\n\n\n\n

Tanulm\u00e1nyuk szerint a h\u00f3takar\u00f3 fluktu\u00e1ci\u00f3ja egyre nagyobb m\u00e9rt\u00e9kben j\u00e1rul hozz\u00e1 a tengeri j\u00e9g vastags\u00e1g\u00e1nak v\u00e1ltoz\u00e9konys\u00e1g\u00e1hoz, \u00e9s szezon\u00e1lis id\u0151sk\u00e1l\u00e1n 20%-r\u0151l t\u00f6bb mint 70%-re n\u0151.<\/p>\n\n\n\n

A SnowModel-LG adatok \u00e1ltal vez\u00e9relt tendenci\u00e1k a tengeri j\u00e9g vastags\u00e1g\u00e1ra vonatkoz\u00f3 statisztik\u00e1kban is megfigyelhet\u0151ek voltak, feler\u0151s\u00edtve a cs\u00f6kken\u00e9st azokon a ter\u00fcleteken, ahol m\u00e1r l\u00e9tezett, \u00e9s jelent\u0151s vesztes\u00e9geket okozva azokon a helyeken, ahol m\u00e9g nem volt ilyen.<\/p>\n\n\n\n

A n\u00f6vekv\u0151 sz\u00e9n-dioxid-kibocs\u00e1t\u00e1s a j\u00e9gtakar\u00f3 cs\u00f6kken\u00e9s\u00e9hez vezet, mivel az ember jelent\u0151sen megn\u00f6velte a k\u00f6rnyezetre hat\u00f3 tev\u00e9kenys\u00e9gek sz\u00e1m\u00e1t. A sarkvid\u00e9keken \u00e9l\u0151 sz\u00e1mos \u00e1llatfaj is elvesztette \u00e9l\u0151hely\u00e9t az olvad\u00e1s miatt. A tengeri j\u00e9g vastags\u00e1g\u00e1nak \u00e9rt\u00e9kel\u00e9s\u00e9hez holisztikus megk\u00f6zel\u00edt\u00e9st adnak integr\u00e1lt modellj\u00fck\u00f6n kereszt\u00fcl, amely \u00e1thidalja az elavult elemz\u00e9si rendszerek hi\u00e1ny\u00e1t, \u00e9s olyan t\u00e9nyez\u0151ket is mag\u00e1ban foglal, mint az \u00e9ghajlatv\u00e1ltoz\u00e1s.<\/p>\n\n\n\n

Kutat\u00e1suk jelent\u0151s m\u00e9rf\u00f6ldk\u0151, amely hat\u00e1rozottan hozz\u00e1j\u00e1rulhat a nagyobb k\u00e9phez, hogy megvizsg\u00e1ljuk a val\u00f3di okot.<\/p>\n\n\n\n

Ha t\u00f6bbet szeretne megtudni a kutat\u00e1sukr\u00f3l, n\u00e9zze meg az al\u00e1bbi hivatkoz\u00e1st. <\/p>\n\n\n\n

Robbie D. C. Mallett, Julienne C. Stroeve, Michel Tsamados, Jack C. Landy, Rosemary Willatt, Vishnu Nandan, Glen E. Liston. A peremvid\u00e9ki sarkvid\u00e9ki tengerek tengeri j\u00e9gvastags\u00e1g\u00e1nak gyorsabb cs\u00f6kken\u00e9se \u00e9s nagyobb v\u00e1ltoz\u00e9konys\u00e1ga a dinamikus h\u00f3takar\u00f3 figyelembev\u00e9tel\u00e9vel. The Cryosphere, 2021; 15 (5): 2429<\/a> DOI: 10.5194\/tc-15-2429-2021<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Az \u00c9szaki-sarkvid\u00e9k a v\u00e1rtn\u00e1l k\u00e9tszer gyorsabban v\u00e9konyodik. Egy friss\u00edtett modell szerint a v\u00e1rtn\u00e1l k\u00e9tszer gyorsabban v\u00e9konyodik a tengeri j\u00e9g az \u00c9szaki-sarkvid\u00e9k partjai ment\u00e9n. A term\u00e9szet \u00e1llapota romlik a glob\u00e1lis felmeleged\u00e9s \u00e9s az \u00e9ghajlati v\u00e1ltoz\u00e1sok fokoz\u00f3d\u00e1s\u00e1val. A sarki j\u00e9g gyors olvad\u00e1sa a biol\u00f3giai sokf\u00e9les\u00e9g cs\u00f6kken\u00e9s\u00e9t okozza, \u00e9s aggodalmakat kelt [...].<\/p>","protected":false},"author":18,"featured_media":13111,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"\nArctic Sea Ice Thinning, in the Fast Lane - MTG<\/title>\n<meta name=\"description\" content=\"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/hu\/sarki-tengeri-jeg-elvekonyodas-a-gyors-savban\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arctic Sea Ice Thinning, in the Fast Lane\" \/>\n<meta property=\"og:description\" content=\"Nature is deteriorating with increasing global warming and climatic changes, and the sea ice along the coasts of the Arctic is thinning two times faster than expected.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mindthegraph.com\/blog\/hu\/sarki-tengeri-jeg-elvekonyodas-a-gyors-savban\/\" \/>\n<meta property=\"og:site_name\" content=\"Mind the Graph Blog\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-08T14:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-01-05T16:48:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-thinning-arctic-sea-facebook-01.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bruna Soldera\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Arctic Sea Ice Thinning, in the Fast Lane\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2021\/07\/post-thinning-arctic.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bruna Soldera\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Arctic Sea Ice Thinning, in the Fast Lane - 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