{"id":41621,"date":"2020-04-05T12:49:16","date_gmt":"2020-04-05T09:49:16","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=41621"},"modified":"2020-04-05T12:49:16","modified_gmt":"2020-04-05T09:49:16","slug":"antarktikada-90-milyon-yillik-yagmur-ormani-kalintisi-kesfedildi","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2020\/04\/05\/antarktikada-90-milyon-yillik-yagmur-ormani-kalintisi-kesfedildi","title":{"rendered":"Antarktika\u2019da 90 milyon y\u0131ll\u0131k ya\u011fmur orman\u0131 kal\u0131nt\u0131s\u0131 ke\u015ffedildi"},"content":{"rendered":"

Heyecan verici bilimsel bir ke\u015ffe g\u00f6re Antarktika her zaman bu kadar so\u011fuk de\u011fildi ve k\u0131tan\u0131n baz\u0131 b\u00f6l\u00fcmleri ya\u011fmur ormanlar\u0131yla kapl\u0131yd\u0131. Alfred Wegener Enstit\u00fcs\u00fc \u00f6nc\u00fcl\u00fc\u011f\u00fcndeki uluslararas\u0131 bir ara\u015ft\u0131rma grubu, bir zamanlar, Antarktika\u2019n\u0131n \u0131l\u0131man ya\u011fmur ormanlar\u0131na ev sahipli\u011fi yapt\u0131\u011f\u0131n\u0131 g\u00f6steriyor. Ke\u015ffedilen fosil k\u00f6kleri, polen ve sporlar, 83-93 milyon y\u0131l \u00f6nce, Kretase D\u00f6nemde, Bat\u0131 Antarktika k\u0131y\u0131lar\u0131n\u0131n \u0131l\u0131man bir iklime sahip oldu\u011funu, batakl\u0131klar\u0131 ve ya\u011fmur ormanlar\u0131n\u0131 bar\u0131nd\u0131rd\u0131\u011f\u0131n\u0131 do\u011fruluyor.<\/p>\n

Ge\u00e7ti\u011fimiz \u00c7ar\u015famba g\u00fcn\u00fc Nature dergisinde yay\u0131nlanan ara\u015ft\u0131rman\u0131n, iklim tarihi ve gelece\u011fi hakk\u0131ndaki bilimsel kavray\u0131\u015f\u0131m\u0131z\u0131 yeniden \u015fekillendirmesi bekleniyor. S\u00f6z\u00fc edilen d\u00f6nemde yaz s\u0131cakl\u0131klar\u0131n\u0131n Antarktika\u2019da 25 \u00b0C\u2019ye kadar y\u00fckseldi\u011fi ve yaz s\u0131cakl\u0131klar\u0131 y\u0131ll\u0131k ortalamas\u0131n\u0131n 19 \u00b0C\u2019ye, nehirlerdeki ve batakl\u0131klardaki su s\u0131cakl\u0131klar\u0131n\u0131n 20 \u00b0C\u2019ye kadar ula\u015ft\u0131\u011f\u0131 ve ya\u011f\u0131\u015f miktar\u0131n\u0131n bug\u00fcn\u00fcn Galler\u2019inkine benzedi\u011fi aktar\u0131ld\u0131. Ara\u015ft\u0131rmac\u0131lar yapt\u0131klar\u0131 bas\u0131n a\u00e7\u0131klamas\u0131nda, bu s\u0131cakl\u0131klar\u0131n sadece Antarktika\u2019da bir zamanlar buz tabakas\u0131 olmad\u0131\u011f\u0131n\u0131 de\u011fil, ayn\u0131 zamanda atmosferik karbondioksit konsantrasyonunun bug\u00fcne kadarki iklim modelleri taraf\u0131ndan belirtilenden \u00e7ok daha y\u00fcksek oldu\u011funu g\u00f6sterdi\u011fini de belirttiler.
\nBiliminsanlar\u0131 \u015fimdi yeni sorular\u0131 yan\u0131tlamaya \u00e7al\u0131\u015f\u0131yorlar.<\/p>\n

Antarktika kabaca 90 milyon y\u0131l \u00f6nce bu kadar \u0131s\u0131nm\u0131\u015fken, daha sonra D\u00fcnya\u2019n\u0131n bu kadar dramatik bir \u015fekilde so\u011fumas\u0131na neden olan \u015fey neydi? Gerrit Lohmann, bu soruya, \u201c\u0130klim sim\u00fclasyonlar\u0131m\u0131z hen\u00fcz tatmin edici bir cevap vermedi\u201d diyor ve ekliyor \u201cBu keskin d\u00f6n\u00fc\u015flerin nedenlerini bulmak art\u0131k uluslararas\u0131 iklim ara\u015ft\u0131rma toplulu\u011fu i\u00e7in \u00f6nemli bir zorunluluktur.\u201d<\/p>\n

Kaynaklar:<\/strong> https:\/\/www.awi.de\/en\/about-us\/service\/press\/press-release\/a-sensational-discovery-traces-of-rainforests-in-west-antarctica.html<\/p>\n

https:\/\/www.nature.com\/articles\/s41586-020-2148-5<\/p>\n","protected":false},"excerpt":{"rendered":"

Heyecan verici bilimsel bir ke\u015ffe g\u00f6re Antarktika her zaman bu kadar so\u011fuk de\u011fildi ve k\u0131tan\u0131n baz\u0131 b\u00f6l\u00fcmleri ya\u011fmur ormanlar\u0131yla kapl\u0131yd\u0131. Alfred Wegener Enstit\u00fcs\u00fc \u00f6nc\u00fcl\u00fc\u011f\u00fcndeki uluslararas\u0131 bir ara\u015ft\u0131rma grubu, bir zamanlar, Antarktika\u2019n\u0131n \u0131l\u0131man ya\u011fmur ormanlar\u0131na ev sahipli\u011fi yapt\u0131\u011f\u0131n\u0131 g\u00f6steriyor. Ke\u015ffedilen fosil k\u00f6kleri, polen ve sporlar, 83-93 milyon y\u0131l \u00f6nce, Kretase D\u00f6nemde, Bat\u0131 Antarktika k\u0131y\u0131lar\u0131n\u0131n \u0131l\u0131man bir […]<\/p>\n","protected":false},"author":2394,"featured_media":41622,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[3186,308,6029],"class_list":["post-41621","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-antarktika","tag-iklim","tag-yagmur-ormani"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t