{"id":2202,"date":"2023-03-14T06:25:19","date_gmt":"2023-03-14T06:25:19","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2202"},"modified":"2023-03-14T06:25:19","modified_gmt":"2023-03-14T06:25:19","slug":"west-antarctic-ice-sheet-vulnerability-revealed-by-past-global-flood","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/tr\/science\/earth-sciences\/west-antarctic-ice-sheet-vulnerability-revealed-by-past-global-flood\/","title":{"rendered":"Ge\u00e7mi\u015f K\u00fcresel Seller, Antarktika’n\u0131n Buz Tabakas\u0131n\u0131n Hassasiyetini Ortaya Koyuyor"},"content":{"rendered":"

Ge\u00e7mi\u015fteki K\u00fcresel Tufan, Antarktika Buz Tabakas\u0131n\u0131n Savunmas\u0131zl\u0131\u011f\u0131n\u0131 Ortaya \u00c7\u0131kar\u0131yor<\/h2>\n\n

Eem Gizemi<\/h2>\n\n

116.000 ila 129.000 y\u0131l \u00f6nce, deniz seviyeleri bug\u00fcnk\u00fcnden \u00f6nemli \u00f6l\u00e7\u00fcde daha y\u00fcksekti ve k\u0131y\u0131 b\u00f6lgelerini ve t\u00fcm adalar\u0131 sular alt\u0131nda b\u0131rakm\u0131\u015ft\u0131. Eem d\u00f6nemindeki bu y\u00fckselmenin nedeni bir gizemdi ancak yeni ara\u015ft\u0131rmalar, Bat\u0131 Antarktika Buz Tabakas\u0131’n\u0131n<\/strong> \u00e7\u00f6kmesinden kaynakland\u0131\u011f\u0131n\u0131 \u00f6ne s\u00fcr\u00fcyor.<\/p>\n\n

Gr\u00f6nland Temize \u00c7\u0131kt\u0131<\/h2>\n\n

Bilim insanlar\u0131 ba\u015flang\u0131\u00e7ta, Eem d\u00f6nemindeki deniz seviyesi y\u00fckselmesinden Gr\u00f6nland Buz Tabakas\u0131’n\u0131n sorumlu oldu\u011funa inan\u0131yordu. Ancak son jeolojik kan\u0131tlar, Gr\u00f6nland’\u0131n buzunun sa\u011flam kald\u0131\u011f\u0131n\u0131 ve bu nedenle su\u00e7suz oldu\u011funu g\u00f6steriyor.<\/p>\n\n

Bat\u0131 Antarktika’n\u0131n Rol\u00fc<\/h2>\n\n

Bat\u0131 Antarktika Buz Tabakas\u0131<\/strong>, devasa b\u00fcy\u00fckl\u00fc\u011f\u00fc ve dengesizli\u011fi nedeniyle ba\u015f \u015f\u00fcpheli haline geldi. Rol\u00fcn\u00fc ara\u015ft\u0131rmak i\u00e7in buzul bilimciler, buz tabakas\u0131n\u0131n k\u0131y\u0131lar\u0131nda a\u00e7\u0131lan tortul \u00e7ekirdeklerini analiz etti. Eem d\u00f6neminde, Amundsen b\u00f6lgesi<\/strong> ve Pine Island Buzulu<\/strong> alanlar\u0131ndan gelen malzemenin yava\u015f yava\u015f yok oldu\u011funu ve yaln\u0131zca Antarktika Yar\u0131madas\u0131’ndan<\/strong> gelen siltin kald\u0131\u011f\u0131n\u0131 ke\u015ffettiler.<\/p>\n\n

Buz Tabakas\u0131 \u00c7\u00f6kmesi<\/h2>\n\n

Bu bulgu, Amundsen ve Pine Island Buzulu alanlar\u0131ndaki buzun akmay\u0131 b\u0131rakt\u0131\u011f\u0131n\u0131 veya eridi\u011fini, Antarktika Yar\u0131madas\u0131’ndaki buzullar\u0131n ise varl\u0131\u011f\u0131n\u0131 s\u00fcrd\u00fcrd\u00fc\u011f\u00fcn\u00fc g\u00f6steriyor. Ara\u015ft\u0131rmac\u0131lar, Bat\u0131 Antarktika Buz Tabakas\u0131’n\u0131n<\/strong> \u00e7\u00f6kt\u00fc\u011f\u00fc ve deniz ortam\u0131na tortu katk\u0131da bulunma yetene\u011fini kaybetti\u011fi sonucuna vard\u0131.<\/p>\n\n

S\u0131cakl\u0131k Hassasiyeti<\/h2>\n\n

Bat\u0131 Antarktika Buz Tabakas\u0131’n\u0131n<\/strong> \u00e7\u00f6kmesi, s\u0131cakl\u0131k de\u011fi\u015fimlerine kar\u015f\u0131 olan k\u0131r\u0131lganl\u0131\u011f\u0131n\u0131 g\u00f6steriyor. Bu durum endi\u015fe verici \u00e7\u00fcnk\u00fc buz tabakas\u0131 \u015fu anda stres belirtileri g\u00f6steriyor. Ancak Eem d\u00f6neminin g\u00fcn\u00fcm\u00fczdeki iklim de\u011fi\u015fikli\u011fiyle tam olarak \u00f6rt\u00fc\u015fmedi\u011fini, \u00e7\u00fcnk\u00fc do\u011fal fakt\u00f6rlerden ziyade insan faaliyetlerinden kaynakland\u0131\u011f\u0131n\u0131 belirtmek \u00f6nemlidir.<\/p>\n\n

Dengesizlik \u0130\u015faretleri<\/h2>\n\n

Eem ve g\u00fcn\u00fcm\u00fcz iklimi aras\u0131ndaki farklara ra\u011fmen Antarktika dengesizlik i\u015faretleri g\u00f6steriyor. Bat\u0131 Antarktika Buz Tabakas\u0131<\/strong>, 1992’den bu yana \u00fc\u00e7 trilyon ton buz kaybetti ve buz kay\u0131plar\u0131 son y\u0131llarda h\u0131zland\u0131.<\/p>\n\n

Do\u011fu Antarktika’n\u0131n Endi\u015feleri<\/h2>\n\n

Sadece Bat\u0131 de\u011fil, uzun s\u00fcredir istikrarl\u0131 oldu\u011fu d\u00fc\u015f\u00fcn\u00fclen Do\u011fu Antarktika Buz Tabakas\u0131<\/strong> da buz kayb\u0131 belirtileri g\u00f6steriyor. Buzul bilimciler, Vincennes K\u00f6rfezi’ndeki<\/strong> ve devasa Totten Buzulu’ndaki<\/strong> buzullar\u0131n inceldi\u011fini ve ak\u0131\u015f h\u0131zlar\u0131n\u0131n artt\u0131\u011f\u0131n\u0131 g\u00f6zlemlediler. Bu sistemler, deniz seviyesini 30 fit y\u00fckseltecek kadar buz i\u00e7eriyor.<\/p>\n\n

Deniz Seviyesine Etkisi<\/h2>\n\n

NASA’ya g\u00f6re, Antarktika buzlar\u0131n\u0131n erimesi 1992’den bu yana k\u00fcresel deniz seviyelerinde 0,3 in\u00e7lik bir art\u0131\u015fa neden oldu. T\u00fcm Antarktika buzlar\u0131 erirse, deniz seviyesi muazzam bir 190 fit y\u00fckselir. Bu a\u015f\u0131r\u0131 g\u00f6r\u00fcnse de, \u00e7al\u0131\u015fmalar mevcut t\u00fcm fosil yak\u0131tlar\u0131n yak\u0131lmas\u0131n\u0131n t\u00fcm buz \u00f6rt\u00fcs\u00fcn\u00fc eritebilece\u011fini \u00f6ne s\u00fcr\u00fcyor.<\/p>\n\n

\u0130leri Ara\u015ft\u0131rmalar<\/h2>\n\n

Ara\u015ft\u0131rmac\u0131lar, Eem d\u00f6nemi hakk\u0131nda daha fazla bilgi edinmek i\u00e7in Antarktika a\u00e7\u0131klar\u0131nda ek tortul \u00e7ekirdekleri delmeyi planl\u0131yor. Bulgular\u0131, Antarktika buz tabakalar\u0131n\u0131n iklim de\u011fi\u015fikli\u011fine kar\u015f\u0131 k\u0131r\u0131lganl\u0131\u011f\u0131n\u0131 ve deniz seviyesinin y\u00fckselmesi \u00fczerindeki potansiyel sonu\u00e7lar\u0131n\u0131 anlamam\u0131za yard\u0131mc\u0131 olacak.<\/p>","protected":false},"excerpt":{"rendered":"

Ge\u00e7mi\u015fteki K\u00fcresel Tufan, Antarktika Buz Tabakas\u0131n\u0131n Savunmas\u0131zl\u0131\u011f\u0131n\u0131 Ortaya \u00c7\u0131kar\u0131yor Eem Gizemi 116.000 ila 129.000 y\u0131l \u00f6nce, deniz seviyeleri bug\u00fcnk\u00fcnden \u00f6nemli \u00f6l\u00e7\u00fcde daha y\u00fcksekti ve k\u0131y\u0131 b\u00f6lgelerini ve t\u00fcm adalar\u0131 sular…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[728],"tags":[721,4595,4592,749,4596,4594,34,4593,473,4597,4598,4599],"class_list":["post-2202","post","type-post","status-publish","format-standard","hentry","category-earth-sciences","tag-antarctica","tag-west-antarctic-ice-sheet","tag-ice-sheets","tag-sea-level-rise","tag-east-antarctic-ice-sheet","tag-eemian-period","tag-climate-change","tag-global-flood","tag-nasa","tag-pine-island-glacier","tag-totten-glacier","tag-vincennes-bay"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=2202"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2202\/revisions"}],"predecessor-version":[{"id":2203,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/2202\/revisions\/2203"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=2202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=2202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=2202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}