{"id":41105,"date":"2023-11-27T01:19:47","date_gmt":"2023-11-27T00:19:47","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=41105"},"modified":"2023-11-26T18:32:47","modified_gmt":"2023-11-26T17:32:47","slug":"nejvetsi-ledovec-na-svete-se-poprve-za-37-let-odlomil-a-pluje-smerem-k-jiznimu-oceanu","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2023\/11\/27\/nejvetsi-ledovec-na-svete-se-poprve-za-37-let-odlomil-a-pluje-smerem-k-jiznimu-oceanu\/","title":{"rendered":"Nejv\u011bt\u0161\u00ed ledovec na sv\u011bt\u011b se poprv\u00e9 za 37 let odlomil a pluje sm\u011brem k ji\u017en\u00edmu oce\u00e1nu"},"content":{"rendered":"
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Nejv\u011bt\u0161\u00ed sv\u011btov\u00fd antarktick\u00fd ledovec A23a, jeho\u017e plocha je v\u00edce ne\u017e 4 tis\u00edce kilometr\u016f \u010dtvere\u010dn\u00edch, se poprv\u00e9 po v\u00edce ne\u017e t\u0159ech desetilet\u00edch za\u010dal pohybovat.\u00a0Informuje o tom\u00a0agentura Reuters<\/a>\u00a0.<\/strong><\/p>\n

Ned\u00e1vn\u00e9 satelitn\u00ed sn\u00edmky ukazuj\u00ed, \u017ee ledovec o hmotnosti t\u00e9m\u011b\u0159 bilion\u016f tun se nyn\u00ed rychle un\u00e1\u0161\u00ed kolem severn\u00edho c\u00edpu Antarktick\u00e9ho poloostrova, \u010demu\u017e napom\u00e1haj\u00ed siln\u00e9 v\u011btry a proudy.<\/span><\/p>\n

Podle glaciologa\u00a0<\/span>Olivera Marshe<\/span><\/strong>\u00a0z British Antarctic Survey je pohybuj\u00edc\u00ed se ledovec t\u00e9to velikosti extr\u00e9mn\u011b vz\u00e1cn\u00fd, tak\u017ee v\u011bdci budou pohyby ledov\u00e9ho bloku pozorn\u011b sledovat.<\/span><\/p>\n

S nejv\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed ob\u0159\u00ed ledovec spadne do Antarktidy Circumpolar Current (chladn\u00fd povrchov\u00fd oce\u00e1nsk\u00fd proud na ji\u017en\u00ed polokouli).\u00a0Pokud k tomu dojde, ledovec zam\u00ed\u0159\u00ed k Ji\u017en\u00edmu oce\u00e1nu cestou zn\u00e1mou jako \u201eledov\u00e1 alej\u201c.<\/span><\/p>\n

„Postupem \u010dasu se pravd\u011bpodobn\u011b jen trochu zten\u010dil a z\u00edskal dal\u0161\u00ed vztlak, co\u017e mu umo\u017enilo odtrhnout se od dna oce\u00e1nu a pohybovat se v m\u00edstech od oce\u00e1nsk\u00fdch proud\u016f.“ – vysv\u011btlil Marsh.<\/span><\/em><\/p>\n

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Dodal tak\u00e9, \u017ee A23a je tak\u00e9 jednou z nejstar\u0161\u00edch ledovc\u016f na sv\u011bt\u011b.<\/span><\/p>\n

Expert nevylou\u010dil, \u017ee by ledovec mohl najet na m\u011bl\u010dinu u ostrova Ji\u017en\u00ed Georgie, co\u017e by zp\u016fsobilo probl\u00e9m pro divokou zv\u011b\u0159 Antarktidy \u2013 miliony tule\u0148\u016f, tu\u010d\u0148\u00e1k\u016f a mo\u0159sk\u00fdch pt\u00e1k\u016f, kte\u0159\u00ed se na ostrov\u011b \u017eiv\u00ed a rozmno\u017euj\u00ed.<\/span><\/p>\n

V roce 2020 dal\u0161\u00ed ledovec, A68, hrozil sr\u00e1\u017ekou s Ji\u017en\u00ed Georgi\u00ed, co\u017e mohlo v\u00e9st ke katastrof\u011b, ale plovouc\u00ed blok se rozpadl na men\u0161\u00ed kousky.<\/span><\/p>\n

Ale \u201eledovec t\u00e9to velikosti m\u00e1 potenci\u00e1l p\u0159e\u017e\u00edt pom\u011brn\u011b dlouhou dobu v ji\u017en\u00edm oce\u00e1nu, i kdy\u017e je tam mnohem tepleji, a mohl by se p\u0159esunout d\u00e1le na sever sm\u011brem k Ji\u017en\u00ed Africe, kde by mohl naru\u0161it lodn\u00ed dopravu,\u201c\u00a0\u2014 navrhuje v\u011bdec.<\/span><\/em><\/p>\n

P\u0159ipome\u0148me, \u017ee v roce 1986 se ledovec A23a, na kter\u00e9m se kdysi nach\u00e1zela sov\u011btsk\u00e1 arktick\u00e1 stanice \u201eDru\u017enaja 1\u201c, odd\u011blil od ledovce a plaval.\u00a0Pak ob\u0159\u00ed ledovec uv\u00edzl na dn\u011b Weddellova mo\u0159e.\u00a0Nyn\u00ed \u010d\u00e1st, kter\u00e1 spojovala ledovec se dnem oce\u00e1nu, rozt\u00e1la a za\u010dala se pohybovat.<\/span><\/p>\n

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Nejv\u011bt\u0161\u00ed sv\u011btov\u00fd antarktick\u00fd ledovec A23a, jeho\u017e plocha je v\u00edce ne\u017e 4 tis\u00edce kilometr\u016f \u010dtvere\u010dn\u00edch, se…<\/p>\n","protected":false},"author":2,"featured_media":41106,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[1648,873,1213],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/41105"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=41105"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/41105\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/41106"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=41105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=41105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=41105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}