Bu \u0131s\u0131nma e\u011filimini endi\u015fe verici bulan NASA y\u00f6neticisi Bill Nelson, \u0131s\u0131nan iklimin \u015fimdiden b\u0131rakt\u0131\u011f\u0131 izlere dikkat \u00e7ekiyor. Ortal\u0131\u011f\u0131 kas\u0131p kavuran kurakl\u0131k, yo\u011funla\u015fan orman yang\u0131nlar\u0131 ve artan deniz seviyeleri, k\u00fcresel iklim kriziyle birlikte ele al\u0131nd\u0131\u011f\u0131nda tart\u0131\u015fma tamamlan\u0131yor. Ayr\u0131ca yap\u0131lan \u00e7al\u0131\u015fman\u0131n, t\u00fcretilen en son iklim de\u011fi\u015fikli\u011fi modellemelerine de referans olaca\u011f\u0131n\u0131n alt\u0131 \u00e7iziliyor.
\nSon dokuz y\u0131l, modern kay\u0131t tutman\u0131n 1880’de ba\u015flamas\u0131ndan bu yana en s\u0131cak y\u0131llardan oldular. Bu durum, 2022’de D\u00fcnya’n\u0131n 19. y\u00fczy\u0131l\u0131n sonundaki s\u0131cakl\u0131k ortalamas\u0131ndan yakla\u015f\u0131k 1,11 Santigrat derece daha s\u0131cak oldu\u011fu anlam\u0131na geliyor.
\nNASA iklim modelleme merkezini direkt\u00f6r\u00fc Gavin Schmidt, “Is\u0131nma e\u011filiminin nedeni, insan faaliyetlerinin atmosfere muazzam miktarlarda sera gaz\u0131 pompalamaya devam etmesi ve gezegenimize etkilerinin de uzun s\u00fcreler boyu devam edecek olmas\u0131d\u0131r” dedi.
\n\u0130nsan kaynakl\u0131 sera gaz\u0131 emisyonlar\u0131 , Kovid-19 salg\u0131n\u0131 nedeniyle 2020’de k\u0131sa s\u00fcreli bir d\u00fc\u015f\u00fc\u015f\u00fcn ard\u0131ndan toparland\u0131. NASA b\u00fcnyesinde son zamanlarda yap\u0131lan bir ba\u015fka \u00e7al\u0131\u015fma, k\u00fcresel karbondioksit sal\u0131n\u0131m\u0131n\u0131n \u015fu ana kadar kaydedilen en y\u00fcksek karbondioksit seviyelerine bu y\u0131l eri\u015fildi\u011fini belirledi. Bu y\u0131l NASA b\u00fcnyesinde yap\u0131lan bir ba\u015fka \u00e7al\u0131\u015fmada da Uluslararas\u0131 Uzay \u0130stasyonu \u00fczerinde bulunan\u00a0 D\u00fcnya Y\u00fczeyi Mineral Toz Kayna\u011f\u0131 Ara\u015ft\u0131rma Arac\u0131’n\u0131 (\u0130ng. Earth Surface Mineral Dust Source Investigation Instrument) kullanarak bir ba\u015fka g\u00fc\u00e7l\u00fc sera gaz\u0131 olan Metan’\u0131n da ola\u011fan\u00fcst\u00fc miktarlarda yay\u0131ld\u0131\u011f\u0131n\u0131 g\u00f6sterdi.
\nABD Jeofizik Birli\u011fi’nin 2022 y\u0131ll\u0131k toplant\u0131s\u0131nda sunulan ara\u015ft\u0131rma sonu\u00e7lar\u0131na g\u00f6re Kuzey Kutbu b\u00f6lgesi, k\u00fcresel ortalaman\u0131n d\u00f6rt kat\u0131na yak\u0131n en g\u00fc\u00e7l\u00fc \u0131s\u0131nma e\u011filimlerini ya\u015famaya devam ediyor.
\nD\u00fcnyan\u0131n d\u00f6rt bir yan\u0131ndaki insan topluluklar\u0131, biliminsanlar\u0131n\u0131n \u0131s\u0131nan atmosfer ve okyanuslarla ilgili olarak g\u00f6rd\u00fckleri etkiler birinci elden tecr\u00fcbe ediyor. K\u00fcresel iklim krizi, ya\u011f\u0131\u015flar\u0131 ve tropik f\u0131rt\u0131nalar\u0131 yo\u011funla\u015ft\u0131rd\u0131. Kurakl\u0131klar\u0131n \u015fiddetini derinle\u015ftirdi ve f\u0131rt\u0131na dalgalar\u0131n\u0131n etkisini art\u0131rd\u0131. Ge\u00e7en y\u0131l Pakistan’\u0131 harap eden \u015fiddetli muson ya\u011fmurlar\u0131 ve ABD’nin g\u00fcneybat\u0131s\u0131ndaki kal\u0131c\u0131 bir mega kurakl\u0131k k\u00fcresel iklim krizinin sonu\u00e7lar\u0131yd\u0131. Eyl\u00fcl ay\u0131nda Ian Kas\u0131rgas\u0131, Amerika k\u0131tas\u0131n\u0131 vuran en g\u00fc\u00e7l\u00fc ve hasarlar\u0131 onar\u0131lmas\u0131 en maliyetli kas\u0131rgalardan biri oldu.<\/p>\n
De\u011fi\u015fen gezegenimizi takip etmek<\/strong> Bu \u0131s\u0131nma e\u011filimini endi\u015fe verici bulan NASA y\u00f6neticisi Bill Nelson, \u0131s\u0131nan iklimin \u015fimdiden b\u0131rakt\u0131\u011f\u0131 izlere dikkat \u00e7ekiyor. Ortal\u0131\u011f\u0131 kas\u0131p kavuran kurakl\u0131k, yo\u011funla\u015fan orman yang\u0131nlar\u0131 ve artan deniz seviyeleri, k\u00fcresel iklim kriziyle birlikte ele al\u0131nd\u0131\u011f\u0131nda tart\u0131\u015fma tamamlan\u0131yor. Ayr\u0131ca yap\u0131lan \u00e7al\u0131\u015fman\u0131n, t\u00fcretilen en son iklim de\u011fi\u015fikli\u011fi modellemelerine de referans olaca\u011f\u0131n\u0131n alt\u0131 \u00e7iziliyor. Son dokuz y\u0131l, modern kay\u0131t […]<\/p>\n","protected":false},"author":512,"featured_media":57263,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,19,232],"tags":[8418,2025,628],"class_list":["post-57261","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomi","category-bilim-gundemi","category-yerbilimleri","tag-kuresel-iklim-krizi","tag-kuresel-isinma","tag-nasa"],"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
\nK\u00fcresel s\u0131cakl\u0131k analizleri i\u00e7in, D\u00fcnya’n\u0131n d\u00f6rt bir yan\u0131ndaki meteoroloji istasyonlar\u0131 ve G\u00fcney Kutbundaki ara\u015ft\u0131rma istasyonlar\u0131 taraf\u0131ndan toplanan verilerin yan\u0131 s\u0131ra, gemilere ve okyanus \u015famand\u0131ralar\u0131na monte edilen aletlerden faydan\u0131lmakta. NASA biliminsanlar\u0131, verilerdeki belirsizlikleri hesaba katmak ve her y\u0131l i\u00e7in ortalama k\u00fcresel y\u00fczey s\u0131cakl\u0131\u011f\u0131 farkl\u0131l\u0131klar\u0131n\u0131 hesaplamak i\u00e7in \u00f6l\u00e7\u00fcmler yap\u0131yor. Bu yer tabanl\u0131 y\u00fczey s\u0131cakl\u0131\u011f\u0131 \u00f6l\u00e7\u00fcmleri, 2002’den beri NASA’n\u0131n Aqua uydusu \u00fczerindeki Atmosfer K\u0131z\u0131l\u00f6tesi \u0130skandili (\u0130ng. Atmospheric Infrared Sounder)\u00a0 taraf\u0131ndan toplanan uydu verileri ve di\u011fer tahminlerle tutarl\u0131d\u0131r.
\nNASA, k\u00fcresel s\u0131cakl\u0131klar\u0131n zaman i\u00e7inde nas\u0131l de\u011fi\u015fti\u011fini anlamak i\u00e7in 1951-1980 d\u00f6nemini temel olarak kullan\u0131yor. Bu taban \u00e7izgisi, La Ni\u00f1a ve El Ni\u00f1o gibi iklim hadiselerinin yan\u0131s\u0131ra di\u011fer etkenler nedeniyle ola\u011fand\u0131\u015f\u0131 s\u0131cak veya so\u011fuk y\u0131llar\u0131 i\u00e7inde bulundurmakta ve D\u00fcnya s\u0131cakl\u0131\u011f\u0131ndaki do\u011fal de\u011fi\u015fimleri anlamland\u0131rmam\u0131z\u0131 sa\u011flar.
\nHerhangi bir y\u0131ldaki ortalama y\u00fczey s\u0131cakl\u0131\u011f\u0131n\u0131 bir\u00e7ok etken etkileyebilir. \u00d6rne\u011fin 2022 y\u0131l\u0131, Pasifik Okyanusu’ndaki La Ni\u00f1a ko\u015fullar\u0131n\u0131n ard arda \u00fc\u00e7 y\u0131ld\u0131r devam etmesine ra\u011fmen kaydedilen en s\u0131cak y\u0131llardan biri oldu. NASA biliminsanlar\u0131, La Ni\u00f1a’n\u0131n so\u011futma etkisinin, k\u00fcresel s\u0131cakl\u0131klar\u0131 d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnden daha az (yakla\u015f\u0131k 0,06 santigrat derece) d\u00fc\u015f\u00fcrm\u00fc\u015f olabilece\u011fini tahmin ediyor.
\nABD Ulusal Okyanus ve Atmosfer \u0130daresi (\u0130ng. National Oceanic and Atmospheric Administration; NOAA) taraf\u0131ndan ba\u011f\u0131ms\u0131z bir ba\u015fka \u00f6l\u00e7\u00fcm, 2022 i\u00e7in k\u00fcresel y\u00fczey s\u0131cakl\u0131\u011f\u0131n\u0131n 1880 y\u0131l\u0131ndan bu yana alt\u0131nc\u0131 en y\u00fcksek s\u0131cakl\u0131k oldu\u011fu sonucuna vard\u0131. NOAA biliminsanlar\u0131, analizlerinde 2022 y\u0131l\u0131na ait NASA’n\u0131n da kulland\u0131\u011f\u0131 ayn\u0131 ham s\u0131cakl\u0131k verilerini, farkl\u0131 bir temel d\u00f6nem s\u0131cakl\u0131klar\u0131yla ( 1901-2000) ve farkl\u0131 bir metodolojiyle inceledi. Belirli y\u0131llar i\u00e7in s\u0131ralamalar kay\u0131tlar aras\u0131nda biraz farkl\u0131l\u0131k g\u00f6r\u00fclse de, sonu\u00e7lar geni\u015f bir uyum i\u00e7inde ve her ikisi de devam eden uzun vadeli \u0131s\u0131nmay\u0131 yans\u0131tmakta.<\/p>\n