{"id":896,"date":"2008-03-17T10:42:00","date_gmt":"2008-03-17T09:42:00","guid":{"rendered":"https:\/\/kids.esa.int\/a_swirling_atmospheric_sink_on_venus\/"},"modified":"2026-10-08T00:33:30","modified_gmt":"2026-10-07T22:33:30","slug":"a_swirling_atmospheric_sink_on_venus","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/a_swirling_atmospheric_sink_on_venus\/","title":{"rendered":"Venusel asuv keerlev atmosf\u00e4\u00e4riline madalr\u00f5huala"},"content":{"rendered":"
\n

Kujutlege planeeti, millel on kaks keerist, \u00fcks p\u00f5hjas ja teine l\u00f5unas. Igas keerises on atmosf\u00e4\u00e4rigaasidest moodustunud keeris, mis p\u00f6\u00f6rlevad suure kiirusega, kui nad pinnale suunduvad. ESA kosmosesondi \u201eVenus Express\u201c andmete kohaselt n\u00e4ib just see toimuvat Maa s\u00f5sarplaneedil Veenusel.<\/p>\n<\/div>\n

Euroopa robotuurija on tiirlenud P\u00e4ikesest teise planeedi orbiidil alates 11. aprillist 2006. M\u00f5ned selle varasemad vaatlused n\u00e4itasid l\u00f5unapooluse kohal tumedat, orkaani meenutavat n\u00e4htust (mida nimetatakse keeriseks). P\u00f5hjapooluse kohal oli sarnane pilvestruktuur juba varem avastatud.<\/p>\n

\"The
Orkaani silm<\/figcaption><\/figure>\n

Sellest ajast alates on \u201cVenus Express\u201d pidevalt j\u00e4lginud Veenuse l\u00f5unapoolust ning \u201ekeeris\u201d keskpunkt on osutunud \u00fcllatavalt muutlikuks. 26. veebruaril 2007 oli see liivakella kujuline. 24 tundi varem oli see peaaegu \u00fcmmargune. M\u00f5nikord n\u00e4ib see ovaalne (munakujuline). Ilmselgelt on see n\u00e4htus \u00fcsna kiiresti kuju muutev.<\/p>\n

Mis p\u00f5hjustab selle 2000 km laiuse keerise? Venus Express on n\u00e4idanud, et selle keskosa on \u00fcmbritsevast piirkonnast soojem. Nagu orkaani silm, m\u00e4rgib see kuumem piirkond kohta, kus atmosf\u00e4\u00e4ri gaasid liiguvad allapoole, tekitades pilvede \u00fclemistes kihtides madalr\u00f5hu.<\/p>\n

\u201cSee tohutu keeris sarnaneb sellele, mida v\u00f5id n\u00e4ha oma vannis, kui oled korgi v\u00e4lja t\u00f5mmanud,\u201d \u00fctleb \u201eVenus Expressi\u201c teadlane Giuseppe Piccioni.<\/p>\n

Teadlased usuvad, et s\u00fcsinikdioksiidist koosnev atmosf\u00e4\u00e4r soojeneb ekvaatoril P\u00e4ikese m\u00f5jul. Gaas t\u00f5useb \u00fcles ja liigub seej\u00e4rel pooluste suunas. Polaarpiirkondades langeb see alla, moodustades atmosf\u00e4\u00e4ri \u201c\u00e4ravoolu\u201d.<\/p>","protected":false},"excerpt":{"rendered":"

Imagine a planet with two drains, one in the north and the other in the south. Each drain features a whirlpool of atmospheric gases which are swirling around at high […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2008\/03\/venus_s_polar_vortex2\/18246846-2-eng-GB\/Venus_s_polar_vortex.jpg","esa_banner_description":"Venus's polar vortex","esa_banner_credit":"ESA\/VIRTIS\/INAF-IASF\/Obs. de Paris-LESIA\/Univ. of Oxford","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/03\/Venus_s_polar_vortex2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,12],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-896","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/896","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=896"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/896\/revisions"}],"predecessor-version":[{"id":4726,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/896\/revisions\/4726"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=896"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=896"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=896"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=896"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=896"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=896"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=896"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=896"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}