{"id":53511,"date":"2025-07-05T12:00:34","date_gmt":"2025-07-05T06:30:34","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=53511"},"modified":"2025-07-05T14:18:39","modified_gmt":"2025-07-05T08:48:39","slug":"polar-anticyclone","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/polar-anticyclone\/","title":{"rendered":"Polar Anticyclone"},"content":{"rendered":"<h2><b>Polar Anticyclone\u00a0 Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Recently, Chile and Argentina ranked among the coldest places on Earth, outside the polar regions as polar anticyclone grips.<\/span><\/p>\n<h2><b>About Polar Anticyclone<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is a wind system associated <\/span><b>with a region<\/b><span style=\"font-weight: 400;\"> in which <\/span><b>high atmospheric pressure develops over<\/b><span style=\"font-weight: 400;\"> or in the vicinity of the poles.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The polar anticyclone is strongest in the cold season of the year.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Examples:<\/b><span style=\"font-weight: 400;\"> The Siberian anticyclone is an example of a polar anticyclone, as is the high-pressure area that forms over Canada and Alaska during the winter.<\/span><\/li>\n<\/ul>\n<h2><b>Formation of Polar anticyclones<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Polar anticyclones are created by the <\/span><b>cooling of surface layers of air.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This cooling causes the <\/span><b>air near the surface to become denser and<\/b><span style=\"font-weight: 400;\">, at the same time, causes an inflow of air at high levels to replace the denser, sinking air.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These processes increase the mass of air above the surface, thus creating the anticyclone. The weather within the central regions of these anticyclones is typically clear and quite cold. The strength of polar anticyclones is <\/span><b>greatest near the Earth\u2019s surface.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It <\/span><b>frequently migrate eastward<\/b><span style=\"font-weight: 400;\"> and equatorward in the winter season, bringing cold waves to warmer latitudes. In the summer they provide cool, dry weather as they move toward the Equator.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The boundary separating <\/span><b>the cold polar<\/b><span style=\"font-weight: 400;\"> air from <\/span><b>the warmer air is called the polar front<\/b><span style=\"font-weight: 400;\">, and along this frontal surface the extratropical cyclones, or wave cyclones, form.\u00a0<\/span><\/li>\n<\/ul>\n<p><b>Source: <\/b><a href=\"https:\/\/news.un.org\/en\/story\/2025\/07\/1165286\" target=\"_blank\" rel=\"nofollow noopener\"><b>UN<\/b><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Polar Anticyclone is a wind system associated with a region in which high atmospheric pressure develops over or in the vicinity of the poles. Read more about Polar Anticyclone, Types, Causes, Examples, Formation, Latest News<\/p>\n","protected":false},"author":24,"featured_media":53538,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[1350,21,22,23],"class_list":{"0":"post-53511","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-polar-anticyclone","9":"tag-prelims-pointers","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/53511","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=53511"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/53511\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/53538"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=53511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=53511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=53511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}