{"id":44712,"date":"2024-01-15T00:31:34","date_gmt":"2024-01-14T23:31:34","guid":{"rendered":"http:\/\/www.infokuryr.cz\/n\/?p=44712"},"modified":"2024-01-14T15:28:55","modified_gmt":"2024-01-14T14:28:55","slug":"ctyri-studie-ukazuji-rostouci-nebo-konstantni-antarkticky-led","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2024\/01\/15\/ctyri-studie-ukazuji-rostouci-nebo-konstantni-antarkticky-led\/","title":{"rendered":"\u010cty\u0159i studie ukazuj\u00ed rostouc\u00ed nebo konstantn\u00ed antarktick\u00fd led"},"content":{"rendered":"
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Zat\u00edmco kultovn\u00ed klimati\u010dt\u00ed hysterici nad\u00e1le \u0161\u00ed\u0159\u00ed m\u00fdtus o t\u00e1n\u00ed pol\u00e1rn\u00edch ledovc\u016f, \u010dty\u0159i nov\u00e9 studie o Antarktid\u011b ukazuj\u00ed opak.\u00a0Navzdory v\u0161em varov\u00e1n\u00edm klimatick\u00fdch fanatik\u016f z\u016fst\u00e1v\u00e1 antarktick\u00fd led pom\u011brn\u011b stabiln\u00ed a dokonce se zd\u00e1, \u017ee v mnoha oblastech p\u0159ib\u00fdv\u00e1.\u00a0Jen v z\u00e1padn\u00ed Antarktid\u011b z\u016fst\u00e1v\u00e1 situace nestabiln\u00ed.\u00a0Je jist\u00e9, \u017ee na pol\u00e1rn\u00ed led vy\u0161\u0161\u00ed dan\u011b z CO2 dojem neud\u011blaj\u00ed.<\/span><\/strong><\/p>\n

Led v Antarktid\u011b se prost\u011b n\u011bjak nechce chovat tak, jak by si klimati\u010dt\u00ed podiv\u00edni evidentn\u011b p\u0159\u00e1li, aby prosadili svou propagandu CO2 a dekarboniza\u010dn\u00ed pl\u00e1ny.\u00a0Proto\u017ee bez v\u011bdeck\u00fdch d\u016fkaz\u016f o obecn\u00e9m alarmismu je tak\u00e9 nedostatek p\u0159\u00edle\u017eitost\u00ed k zaveden\u00ed roz\u0161\u00ed\u0159en\u00e9ho \u0161\u00ed\u0159en\u00ed popla\u0161n\u00fdch zpr\u00e1v.\u00a0O to d\u016fle\u017eit\u011bj\u0161\u00ed je pou\u010dit \u0161irokou populaci o realit\u011b, proto\u017ee mainstreamov\u00e1 m\u00e9dia, kter\u00e1 byla o\u010dividn\u011b unesena Zelen\u00fdmi a klimatick\u00fdmi fanatiky, to ned\u011blaj\u00ed.<\/span><\/p>\n

Studie<\/span><\/a>\u00a0nap\u0159\u00edklad ukazuje\u00a0, \u017ee ledov\u00e1 pokr\u00fdvka Antarktidy vzrostla od roku 2009 do roku 2019 o 5 305 kilometr\u016f \u010dtvere\u010dn\u00edch a v tomto desetilet\u00ed vzrostla o 661 gigatun.\u00a0<\/span>V\u011bdci zjistili, \u017ee a\u010dkoliv 18 ledov\u00fdch \u0161elf\u016f pon\u011bkud ustoupilo, z\u00e1rove\u0148 se v\u00fdrazn\u011b zv\u00fd\u0161ilo 16 v\u011bt\u0161\u00edch ledov\u00fdch \u0161elf\u016f.\u00a0<\/span><\/strong>V\u011bdci to ukazuj\u00ed tak\u00e9 pomoc\u00ed grafiky:<\/span><\/p>\n

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Druh\u00e1\u00a0<\/span>studie, kter\u00e1 stoj\u00ed za zm\u00ednku,<\/span><\/a>\u00a0byla publikov\u00e1na v \u010dasopise Geophysical Research Letters.\u00a0V\u00fdzkumn\u00edci zkoumali d\u00e9lku a mno\u017estv\u00ed povrchov\u00e9 vody z t\u00e1n\u00ed od roku 1980 do roku 2021. Pou\u017eili mikrovlnn\u00e1 satelitn\u00ed data ze sn\u011bhov\u00e9ho modelu \u201eSNOWPACK\u201c.\u00a0V\u00fdsledek: Vrcholy byly v letech 1992\/1993 a 1994\/1995.\u00a0<\/span>Za posledn\u00edch 41 let v\u0161ak byly nam\u011b\u0159eny celkov\u00e9 m\u00edrn\u00e9 klesaj\u00edc\u00ed trendy jak v ro\u010dn\u00edch dnech t\u00e1n\u00ed, tak v produkci taj\u00edc\u00ed vody.<\/span><\/strong><\/p>\n

Jin\u00e1\u00a0<\/span>studie publikovan\u00e1 v Nature<\/span><\/a>\u00a0uv\u00e1d\u00ed, \u017ee v z\u00e1padn\u00ed Antarktid\u011b do\u0161lo k v\u00fdrazn\u00e9mu \u00fabytku ledov\u00e9 hmoty, ale tamn\u00ed ledovce se nyn\u00ed znateln\u011b stabilizovaly.\u00a0Vezmeme-li v\u0161ak v \u00favahu n\u00e1r\u016fst ledov\u00e9 hmoty v jin\u00fdch antarktick\u00fdch oblastech, objev\u00ed se region\u00e1ln\u011b velmi odli\u0161n\u00fd obr\u00e1zek.\u00a0<\/span>V p\u0159\u00edpad\u011b Z\u00e1padn\u00ed Antarktidy jsou to p\u0159edev\u0161\u00edm teplej\u0161\u00ed oce\u00e1nsk\u00e9 proudy, kter\u00e9 ovliv\u0148uj\u00ed tamn\u00ed region\u00e1ln\u00ed klima.\u00a0<\/span><\/strong>Je tedy vid\u011bt, \u017ee jde o region\u00e1ln\u00ed akci, i kdy\u017e tendence ke stabilizaci jsou.<\/span><\/p>\n

\u010ctvrt\u00e1\u00a0<\/span>relevantn\u00ed studie<\/span><\/a>\u00a0se vrac\u00ed o n\u011bco d\u00e1le do minulosti a zam\u011b\u0159uje se tak\u00e9 na z\u00e1padn\u00ed Antarktidu.\u00a0Na z\u00e1klad\u011b zkoum\u00e1n\u00ed subglaci\u00e1ln\u00edch skaln\u00edch jader v\u011bdci zjistili, \u017ee z\u00e1padn\u00ed antarktick\u00e1 ledov\u00e1 vrstva byla za posledn\u00edch n\u011bkolik tis\u00edc let \u201enejm\u00e9n\u011b o 35 metr\u016f ten\u010d\u00ed\u201c ne\u017e dnes a teprve ned\u00e1vno ztloustla.\u00a0Krom\u011b toho p\u00ed\u0161\u00ed v\u011bdeck\u00fdm jazykem:<\/span><\/p>\n

Minul\u00e1\u00a0<\/span>epizoda zten\u010dov\u00e1n\u00ed ledovce, ke kter\u00e9 do\u0161lo za podobn\u00fdch, i kdy\u017e ne identick\u00fdch, klimatick\u00fdch podm\u00ednek, nebyla nevratn\u00e1.\u00a0<\/span><\/strong>Navrhujeme, \u017ee minul\u00fd cyklus zten\u010dov\u00e1n\u00ed a ztlu\u0161\u0165ov\u00e1n\u00ed ledov\u00e9 pokr\u00fdvky byl zp\u016fsoben glacioizostatickou zp\u011btnou vazbou, podobnou t\u00e9, kter\u00e1 je pova\u017eov\u00e1na za mo\u017en\u00fd stabiliza\u010dn\u00ed mechanismus pro sou\u010dasn\u00fd \u00fastup z\u00e1kladn\u00ed linie, kde izostatick\u00fd vzestup zp\u016fsoben\u00fd zten\u010dov\u00e1n\u00edm v ran\u00e9m holoc\u00e9nu vedl k relativn\u00ed pokles hladiny mo\u0159e, kter\u00fd up\u0159ednostnil posun z\u00e1kladn\u00ed linie.“<\/span><\/p>\n

To tak\u00e9 znamen\u00e1, \u017ee i kdy\u017e led v z\u00e1padn\u00ed Antarktid\u011b v posledn\u00edch desetilet\u00edch ztr\u00e1cel na hmot\u011b, jde pouze o zcela p\u0159irozen\u00fd v\u00fdvoj.\u00a0Vrstva ledu tam u\u017e byla v\u00fdrazn\u011b ten\u010d\u00ed ne\u017e dnes a jen se zv\u011bt\u0161ila, proto\u017ee jsme po tepl\u00e9m obdob\u00ed st\u0159edn\u00edho holoc\u00e9nu op\u011bt vstoupili do chladn\u011bj\u0161\u00ed f\u00e1ze.\u00a0To tak\u00e9 potvrzuje, \u017ee bychom nem\u011bli panika\u0159it kv\u016fli ledov\u00e9 pokr\u00fdvce v z\u00e1padn\u00ed Antarktid\u011b.<\/span><\/p>\n

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Zat\u00edmco kultovn\u00ed klimati\u010dt\u00ed hysterici nad\u00e1le \u0161\u00ed\u0159\u00ed m\u00fdtus o t\u00e1n\u00ed pol\u00e1rn\u00edch ledovc\u016f, \u010dty\u0159i nov\u00e9 studie o…<\/p>\n","protected":false},"author":2,"featured_media":7262,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[1648,873,1102],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/44712"}],"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=44712"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/44712\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/7262"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=44712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=44712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=44712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}