{"id":195651,"date":"2026-08-29T17:47:13","date_gmt":"2026-08-29T17:47:13","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/195651\/"},"modified":"2026-08-29T17:47:13","modified_gmt":"2026-08-29T17:47:13","slug":"z-gronskeho-ledovce-se-odlomil-ostrov-o-velikosti-manhattanu","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/195651\/","title":{"rendered":"Z gr\u00f3nsk\u00e9ho ledovce se odlomil \u201eostrov\u201c o\u00a0velikosti Manhattanu"},"content":{"rendered":"

Podle Evropsk\u00e9 vesm\u00edrn\u00e9 agentury (ESA) zachytila odlomen\u00ed ledovcov\u00e9 kry dru\u017eice Sentinel-1.\u00a0Je\u0161t\u011b o\u00a0den d\u0159\u00edve satelitn\u00ed sn\u00edmky ukazovaly v\u00fdrazn\u00e9 trhliny v\u00a0plovouc\u00ed \u010d\u00e1sti ledovce. N\u00e1sleduj\u00edc\u00ed den se od jeho v\u00fdchodn\u00edho okraje odd\u011blila rozs\u00e1hl\u00e1 masa ledu.<\/p>\n

Vznikl tak tabul\u00e1rn\u00ed ledovec o\u00a0rozloze p\u0159ibli\u017en\u011b 76\u00a0kilometr\u016f \u010dtvere\u010dn\u00edch, co\u017e zhruba odpov\u00edd\u00e1 rozloze Manhattanu. Jeho tlou\u0161\u0165ka podle odhad\u016f dosahuje a\u017e 150\u00a0metr\u016f. Jde o\u00a0nejv\u011bt\u0161\u00ed odlomen\u00ed z\u00a0plovouc\u00ed \u010d\u00e1sti Petermannova ledovce za posledn\u00edch 14\u00a0let.<\/p>\n

\u201ePetermann\u016fv ledovec je ji\u017e dlouho jedn\u00edm z\u00a0nejv\u011bt\u0161\u00edch zb\u00fdvaj\u00edc\u00edch ledovc\u016f s\u00a0rozs\u00e1hlou plovouc\u00ed \u010d\u00e1st\u00ed v\u00a0Gr\u00f3nsku. Toto odlomen\u00ed jsme o\u010dek\u00e1vali u\u017e l\u00e9ta a\u00a0kone\u010dn\u011b k\u00a0n\u011bmu do\u0161lo. Je to p\u0159ipom\u00ednka toho, jak rychle se mohou ledovce m\u011bnit,\u201c uvedl Adam Garbo z\u00a0Ottawsk\u00e9 univerzity.<\/p>\n

<\/a><\/p>\n

K rozs\u00e1hl\u00e9mu odlamov\u00e1n\u00ed ledu z\u00a0Petermannova ledovce do\u0161lo tak\u00e9 v\u00a0letech 2008, 2010\u00a0a\u00a02012.\u00a0Od t\u00e9 doby v\u0161ak byla jeho plovouc\u00ed \u010d\u00e1st relativn\u011b stabiln\u00ed. Radarov\u00e1 m\u011b\u0159en\u00ed z\u00a0leto\u0161n\u00edho dubna nicm\u00e9n\u011b odhalila deformace a\u00a0trhliny, kter\u00e9 se v\u00a0ledu postupn\u011b roz\u0161i\u0159ovaly.<\/p>\n

Foto: ESA<\/p>\n

Velikost odlomen\u00e9 ledovcov\u00e9 kry<\/p>\n

Ledov\u00fd obr bude d\u00e1l pod dohledem<\/p>\n

Srpnov\u00fdm odlomen\u00edm v\u0161ak zm\u011bny z\u0159ejm\u011b nekon\u010d\u00ed. Dal\u0161\u00ed dv\u011b \u010d\u00e1sti o\u00a0rozloze p\u0159ibli\u017en\u011b 97\u00a0a\u00a087\u00a0kilometr\u016f \u010dtvere\u010dn\u00edch by se podle v\u00fdzkumn\u00edk\u016f mohly v\u00a0budoucnu rovn\u011b\u017e odd\u011blit. V\u011bdci proto budou dal\u0161\u00ed v\u00fdvoj ledovce sledovat pomoc\u00ed dru\u017eic i\u00a0leteck\u00fdch pozorov\u00e1n\u00ed.<\/p>\n

Stejn\u011b tak budou v\u00a0n\u00e1sleduj\u00edc\u00edch letech pe\u010dliv\u011b sledovat osud nov\u00e9 ledovcov\u00e9 kry. Oce\u00e1nsk\u00e9 proudy ji budou un\u00e1\u0161et a\u00a0postupn\u011b se m\u016f\u017ee rozpadat na men\u0161\u00ed kusy. Vz\u00e1cn\u011b velk\u00e1 masa ledu by se mohla st\u00e1t rizikem pro lodn\u00ed dopravu i\u00a0arktickou infrastrukturu.<\/p>\n

\u201eZat\u00edmco velk\u00e9 tabulovit\u00e9 ledovcov\u00e9 kry jsou v\u00a0Ji\u017en\u00edm oce\u00e1nu kolem Antarktidy relativn\u011b b\u011b\u017en\u00e9, arktick\u00e9 ledov\u00e9 ostrovy jsou mnohem vz\u00e1cn\u011bj\u0161\u00ed,\u201c uvedla Anna Crawfordov\u00e1 z\u00a0Univerzity ve Stirlingu.<\/p>\n

Jejich studium podle n\u00ed pom\u00e1h\u00e1 pochopit, jak odlamov\u00e1n\u00ed a\u00a0n\u00e1sledn\u00fd rozpad ledu ovliv\u0148uj\u00ed chov\u00e1n\u00ed ledovc\u016f, oce\u00e1n i\u00a0r\u016fst hladiny mo\u0159\u00ed. <\/p>\n

Samotn\u00e9 odlomen\u00ed nyn\u011bj\u0161\u00edho kusu hladinu oce\u00e1nu prakticky nezv\u00fd\u0161\u00ed, proto\u017ee led ji\u017e p\u0159edt\u00edm plaval na vod\u011b. \u00dabytek plovouc\u00ed \u010d\u00e1sti ale m\u016f\u017ee ovlivnit rychlost, s\u00a0jakou led z\u00a0pevniny proud\u00ed do oce\u00e1nu, a\u00a0t\u00edm nep\u0159\u00edmo p\u0159isp\u011bt k\u00a0r\u016fstu jeho hladiny.<\/p>\n

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Podle Evropsk\u00e9 vesm\u00edrn\u00e9 agentury (ESA) zachytila odlomen\u00ed ledovcov\u00e9 kry dru\u017eice Sentinel-1.\u00a0Je\u0161t\u011b o\u00a0den d\u0159\u00edve satelitn\u00ed sn\u00edmky ukazovaly v\u00fdrazn\u00e9 trhliny…\n","protected":false},"author":2,"featured_media":195652,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[11],"tags":[340,159,13017,54,4573,45125,53,52],"class_list":["post-195651","post","type-post","status-publish","format-standard","has-post-thumbnail","category-svet","tag-gronsko","tag-klima","tag-ledovce","tag-svet","tag-tani","tag-teleni-ledovcu","tag-world","tag-world-news"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/117180055683871855","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/195651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=195651"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/195651\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/195652"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=195651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=195651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=195651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}