{"id":13279,"date":"2021-09-11T21:05:16","date_gmt":"2021-09-11T21:05:16","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=13279"},"modified":"2021-09-11T21:05:16","modified_gmt":"2021-09-11T21:05:16","slug":"delaware-sized-iceberg-breaks-off-antarctica-climate-change-concerns","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/ro\/science\/earth-sciences\/delaware-sized-iceberg-breaks-off-antarctica-climate-change-concerns\/","title":{"rendered":"Un aisberg de m\u0103rimea statului Delaware s-a desprins din Antarctica"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Un aisberg de m\u0103rimea statului Delaware s-a desprins din Antarctica<\/h2>\n\n<h2 class=\"wp-block-heading\">Context<\/h2>\n\n<p>Platforma de ghea\u021b\u0103 Larsen C, situat\u0103 pe coasta estic\u0103 a Peninsulei Antarctice, a \u00eenregistrat o cr\u0103p\u0103tur\u0103 care s-a l\u0103rgit \u00een ultimii ani. Oamenii de \u0219tiin\u021b\u0103 monitorizeaz\u0103 evolu\u021bia cr\u0103p\u0103turii din 2014, anticip\u00e2nd desprinderea \u00een cele din urm\u0103 a unui aisberg masiv.<\/p>\n\n<h2 class=\"wp-block-heading\">Evenimentul desprinderii<\/h2>\n\n<p>Pe 31 ianuarie 2023, oamenii de \u0219tiin\u021b\u0103 au confirmat c\u0103 un aisberg de m\u0103rimea statului Delaware s-a desprins de platforma de ghea\u021b\u0103 Larsen C. Aisbergul, care c\u00e2nt\u0103re\u0219te peste un trilion de tone metrice, este unul dintre cei mai mari \u00eenregistra\u021bi vreodat\u0103.<\/p>\n\n<p>Adrian Luckman, glaciolog la Universitatea Swansea, a declarat: \u201eAm anticipat acest eveniment luni de zile \u0219i am fost surprin\u0219i c\u00e2t de mult a durat p\u00e2n\u0103 c\u00e2nd ruptura a str\u0103puns ultimii c\u00e2\u021biva kilometri de ghea\u021b\u0103.\u201d<\/p>\n\n<h2 class=\"wp-block-heading\">Caracteristicile aisbergului<\/h2>\n\n<p>Aisbergul m\u0103soar\u0103 aproximativ 2.300 de mile p\u0103trate ca suprafa\u021b\u0103 \u0219i are o lungime de aproximativ 120 de mile. Este a treia sec\u021biune major\u0103 a platformei de ghea\u021b\u0103 Larsen care s-a pr\u0103bu\u0219it \u00een ultimele decenii. Primul, Larsen A, s-a desprins \u00een 1995, urmat de Larsen B \u00een 2002.<\/p>\n\n<h2 class=\"wp-block-heading\">Impactul asupra nivelului m\u0103rii<\/h2>\n\n<p>De\u0219i desprinderea aisbergului nu va cre\u0219te direct nivelul m\u0103rii, deoarece plutea deja pe ap\u0103, ar putea avea consecin\u021be indirecte. Pr\u0103bu\u0219irea platformei de ghea\u021b\u0103 o poate face mai vulnerabil\u0103 la o dezintegrare ulterioar\u0103, ceea ce ar putea elibera poten\u021bial mai mult\u0103 ghea\u021b\u0103 \u00een ocean \u0219i ar putea contribui la cre\u0219terea nivelului m\u0103rii.<\/p>\n\n<h2 class=\"wp-block-heading\">Cauzele desprinderii<\/h2>\n\n<p>Cauza exact\u0103 a pr\u0103bu\u0219irii platformei de ghea\u021b\u0103 Larsen C este \u00eenc\u0103 neclar\u0103. Unii oameni de \u0219tiin\u021b\u0103 cred c\u0103 schimb\u0103rile climatice induse de om au jucat un rol, \u00een timp ce al\u021bii sus\u021bin c\u0103 factorii naturali sunt \u00een primul r\u00e2nd responsabili.<\/p>\n\n<p>Anna Hogg, cercet\u0103toare \u00een Antarctica, a declarat: \u201e\u00cen acest moment, ar fi prematur s\u0103 spunem c\u0103 acest lucru a fost cauzat de \u00eenc\u0103lzirea global\u0103. Cu toate acestea, este clar c\u0103 Peninsula Antarctic\u0103 se confrunt\u0103 cu o \u00eenc\u0103lzire rapid\u0103, ceea ce ar putea contribui la destabilizarea platformelor de ghea\u021b\u0103.\u201d<\/p>\n\n<h2 class=\"wp-block-heading\">Implica\u021biile pentru ecosistemul antarctic<\/h2>\n\n<p>Pr\u0103bu\u0219irea platformei de ghea\u021b\u0103 Larsen C ar putea avea implica\u021bii semnificative pentru ecosistemul antarctic. Platforma de ghea\u021b\u0103 ofer\u0103 un habitat pentru o varietate de via\u021b\u0103 marin\u0103, inclusiv pinguini, foci \u0219i balene. Pr\u0103bu\u0219irea acesteia ar putea perturba aceste ecosisteme \u0219i ar putea duce poten\u021bial la sc\u0103deri ale popula\u021biei.<\/p>\n\n<h2 class=\"wp-block-heading\">Perspective de viitor<\/h2>\n\n<p>Oamenii de \u0219tiin\u021b\u0103 sunt \u00eengrijora\u021bi c\u0103 pr\u0103bu\u0219irea platformei de ghea\u021b\u0103 Larsen C ar putea fi un semn al unei pierderi mai r\u0103sp\u00e2ndite de ghea\u021b\u0103 \u00een Antarctica. Dac\u0103 platformele de ghea\u021b\u0103 continu\u0103 s\u0103 se pr\u0103bu\u0219easc\u0103, acest lucru ar putea duce la o cre\u0219tere substan\u021bial\u0103 a nivelului m\u0103rii \u0219i la alte impacturi legate de clim\u0103.<\/p>\n\n<h2 class=\"wp-block-heading\">Informa\u021bii suplimentare<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Platforma de ghea\u021b\u0103 Larsen C este una dintre cele mai mari \u0219i mai stabile platforme de ghea\u021b\u0103 din Antarctica.<\/li>\n<li>Cr\u0103p\u0103tura care a dus la desprinderea aisbergului se extindea de peste un deceniu.<\/li>\n<li>Se preconizeaz\u0103 c\u0103 aisbergul va deriva spre nord \u0219i, \u00een cele din urm\u0103, se va topi \u00een ape mai calde.<\/li>\n<li>Oamenii de \u0219tiin\u021b\u0103 continu\u0103 s\u0103 monitorizeze platforma de ghea\u021b\u0103 Larsen C \u0219i alte platforme de ghea\u021b\u0103 antarctice pentru semne de pr\u0103bu\u0219ire ulterioar\u0103.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Un aisberg de m\u0103rimea statului Delaware s-a desprins din Antarctica Context Platforma de ghea\u021b\u0103 Larsen C, situat\u0103 pe coasta estic\u0103 a Peninsulei Antarctice, a \u00eenregistrat o cr\u0103p\u0103tur\u0103 care s-a l\u0103rgit&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[728],"tags":[7595,17901,17900,749,34,4317],"class_list":["post-13279","post","type-post","status-publish","format-standard","hentry","category-earth-sciences","tag-iceberg","tag-larsen-c","tag-antarctic-ice-shelf","tag-sea-level-rise","tag-climate-change","tag-polar-science"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/13279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/comments?post=13279"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/13279\/revisions"}],"predecessor-version":[{"id":13280,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/13279\/revisions\/13280"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/media?parent=13279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/categories?post=13279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/tags?post=13279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}