{"id":21023495,"date":"2014-07-15T19:13:14","date_gmt":"2014-07-15T17:13:14","guid":{"rendered":"http:\/\/znanost.geek.hr\/?p=21023495"},"modified":"2017-02-02T14:56:02","modified_gmt":"2017-02-02T13:56:02","slug":"jezero-abraham","status":"publish","type":"post","link":"https:\/\/geek.hr\/znanost\/clanak\/jezero-abraham\/","title":{"rendered":"Jezero Abraham &#8211; \u0160to ga to \u010dini jedinstvenim?"},"content":{"rendered":"<p>Jezero Abraham umjetno je jezero u zapadnoj Alberti u Kanadi. Nastalo je 1972. godine, a nazvano je prema Silasu Abrahamu, stanovniku doline rijeke Saskatchewan iz 19. stolje\u0107a. Jezero je me\u0111u fotografima poznato po fenomenu zamrznutih mjehuri\u0107a zarobljenih ispod povr\u0161ine.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-21023497\" src=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/Stunning-Frozen-Air-Bubbles-at-Abraham-Lake-Canada-4-720x445.jpg\" alt=\"\" width=\"720\" height=\"445\" srcset=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/Stunning-Frozen-Air-Bubbles-at-Abraham-Lake-Canada-4-720x445.jpg 720w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/Stunning-Frozen-Air-Bubbles-at-Abraham-Lake-Canada-4-300x185.jpg 300w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/Stunning-Frozen-Air-Bubbles-at-Abraham-Lake-Canada-4.jpg 880w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>Fotograf Fikret Onal objasnio je fenomen: &#8220;Biljke na dnu jezera proizvode vrlo zapaljivi plin metan. Ti se mjehuri\u0107i metana, kako se pribli\u017eavaju povr\u0161ini jezera gdje je temperatura ni\u017ea, smrzavaju i talo\u017ee se jedan ispod drugog.&#8221;<\/p>\n<p>&#8220;Iako sam mnogo puta hodao po povr\u0161ini smrznutih jezera, najstra\u0161nije je bilo hodati po jezeru Abraham. Povr\u0161ina nije bila prekrivena snijegom jer je bilo vrlo hladno, oko -30 stupnjeva. Iako je led na povr\u0161ini jezera bio debeo 20-ak centimetara, mogao sam vidjeti pukotine u ledu te dno jezera kroz prozirni led.&#8221;<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-21038717 size-full\" src=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/83908903.jpeg\" width=\"948\" height=\"532\" srcset=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/83908903.jpeg 948w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/83908903-300x168.jpeg 300w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/83908903-768x431.jpeg 768w\" sizes=\"(max-width: 948px) 100vw, 948px\" \/><\/p>\n<p>Metan se stvara u brojnim jezerima oko Arktika i njegovo otpu\u0161tanje prilikom topljenja leda je u ve\u0107ini slu\u010dajeva bezopasno, no uvijek postoji mogu\u0107nost da zapalite \u0161ibicu u trenutku kada jedan od zamrznutih mjehuri\u0107a pukne i oslobodi se metan.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-21038719\" src=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/398089038903.jpg\" alt=\"\" width=\"960\" height=\"504\" srcset=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/398089038903.jpg 960w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/398089038903-300x158.jpg 300w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/07\/398089038903-768x403.jpg 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/p>\n<p>Otapanje permafrosta uzrokovano klimatskim promjenama zna\u010di otpu\u0161tanje vi\u0161e metana u atmosferu, a to je \u010dinjenica koja zabrinjava klimatologe budu\u0107i da je metan mnogo potentniji stakleni\u010dki plin od ugljikova dioksida.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jezero Abraham umjetno je jezero u zapadnoj Alberti u Kanadi. Nastalo je 1972. godine, a nazvano je prema Silasu Abrahamu, stanovniku doline rijeke Saskatchewan iz 19. stolje\u0107a. Jezero je me\u0111u fotografima poznato po fenomenu zamrznutih mjehuri\u0107a zarobljenih ispod povr\u0161ine. Fotograf Fikret Onal objasnio je fenomen: &#8220;Biljke na dnu jezera proizvode vrlo zapaljivi plin metan. Ti [&hellip;]<\/p>\n","protected":false},"author":10022,"featured_media":21038716,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[16374],"tags":[17124,17130,16805],"class_list":["post-21023495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geografija-i-geologija","tag-jezero","tag-led","tag-metan"],"modified_by":null,"_links":{"self":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts\/21023495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/users\/10022"}],"replies":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/comments?post=21023495"}],"version-history":[{"count":0,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts\/21023495\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/media\/21038716"}],"wp:attachment":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/media?parent=21023495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/categories?post=21023495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/tags?post=21023495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}