{"id":1075,"date":"2023-06-20T13:53:06","date_gmt":"2023-06-20T08:23:06","guid":{"rendered":"https:\/\/lotusarise.com\/qna\/?p=1075"},"modified":"2024-04-03T07:08:50","modified_gmt":"2024-04-03T01:38:50","slug":"q-in-the-south-atlantic-and-south-eastern-pacific-regions-in-tropical-latitudes-cyclone-does-not-originate-what-is-the-reason","status":"publish","type":"post","link":"https:\/\/lotusarise.com\/qna\/upsc\/q-in-the-south-atlantic-and-south-eastern-pacific-regions-in-tropical-latitudes-cyclone-does-not-originate-what-is-the-reason","title":{"rendered":"Q. In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason?"},"content":{"rendered":"\n<ul class=\"mcq wp-block-list\">\n<li>Sea surface temperatures are low<\/li>\n\n\n\n<li>Inter-Tropical Convergence Zone seldom occurs<\/li>\n\n\n\n<li>Coriolis force is too weak<\/li>\n\n\n\n<li>Absence of land in those regions<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Answer: (b) Inter-Tropical Convergence Zone seldom occurs<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>Reasons for the lack of cyclone formation in the South Atlantic<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sea surface temperatures<\/strong>&nbsp;run a shade&nbsp;<strong>cooler&nbsp;<\/strong>than the one ideal for tropical cyclone formation.<\/li>\n\n\n\n<li><strong>Climatologically high values of vertical wind shear<\/strong>&nbsp;across that basin&nbsp;<strong>throughout the year even in summer<\/strong>.<\/li>\n\n\n\n<li><strong>Vorticity<\/strong>: Lack of pre-existing centres of rotation&nbsp;in the&nbsp;area.<\/li>\n\n\n\n<li><strong>Absence of tropical waves.<\/strong><\/li>\n\n\n\n<li>The&nbsp;<strong>Intertropical Convergence Zone<\/strong>&nbsp;(ITZC), which&nbsp;<strong>shifts&nbsp;<\/strong>toward the&nbsp;<strong>north in northern summer<\/strong>&nbsp;and toward the&nbsp;<strong>south<\/strong>&nbsp;in the&nbsp;<strong>southern summer<\/strong>, usually&nbsp;<strong>stays at or north of the equator<\/strong>.<\/li>\n\n\n\n<li>The&nbsp;<strong>tropospheric vertical wind shear is much too strong&nbsp;<\/strong>and there is typically&nbsp;<strong>no inter-tropical convergence zone&nbsp;<\/strong>(ITCZ) over the ocean.<\/li>\n\n\n\n<li><strong>Without an&nbsp;<a href=\"https:\/\/lotusarise.com\/indian-monsoon-upsc\/\">ITCZ<\/a>&nbsp;to provide synoptic vorticity and convergence resulting in large-scale spin and thunderstorm activity as well as having strong wind shear<\/strong>, it becomes very difficult&nbsp;to generate&nbsp;tropical cyclones.<\/li>\n\n\n\n<li><strong>ITCZ&nbsp;<\/strong>stays at or near the&nbsp;<strong>equator&nbsp;<\/strong>and&nbsp;<strong>does not shift southward over the south Atlantic or South Pacific region<\/strong>. Therefore, these regions do not have the ITCZ over them which is a major cause of the lack of cyclones.<\/li>\n\n\n\n<li><strong>Lower sea temperatures<\/strong>&nbsp;are also a reason.<\/li>\n<\/ul>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-_f71c31-b4 .kt-block-spacer{height:40px;}.wp-block-kadence-spacer.kt-block-spacer-_f71c31-b4 .kt-divider{border-top-width:2px;border-top-color:#eee;width:100%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-_f71c31-b4\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Answer: (b) Inter-Tropical Convergence Zone seldom occurs Reasons for the lack of cyclone formation in the South Atlantic<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[1,3],"tags":[37],"years":[58],"class_list":["post-1075","post","type-post","status-publish","format-standard","hentry","category-upsc","category-prelims","tag-geography","years-58"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"UPSC"},{"value":3,"label":"Prelims"}],"post_tag":[{"value":37,"label":"Geography"}],"years":[{"value":58,"label":"2015"}]},"featured_image_src_large":false,"author_info":{"display_name":"LotusArise","author_link":"https:\/\/lotusarise.com\/qna\/author\/team-lotusarise"},"comment_info":0,"category_info":[{"term_id":1,"name":"UPSC","slug":"upsc","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":1269,"filter":"raw","cat_ID":1,"category_count":1269,"category_description":"","cat_name":"UPSC","category_nicename":"upsc","category_parent":0},{"term_id":3,"name":"Prelims","slug":"prelims","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":1,"count":1251,"filter":"raw","cat_ID":3,"category_count":1251,"category_description":"","cat_name":"Prelims","category_nicename":"prelims","category_parent":1}],"tag_info":[{"term_id":37,"name":"Geography","slug":"geography","term_group":0,"term_taxonomy_id":37,"taxonomy":"post_tag","description":"","parent":0,"count":167,"filter":"raw"}],"_links":{"self":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/comments?post=1075"}],"version-history":[{"count":1,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1075\/revisions"}],"predecessor-version":[{"id":1089,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/posts\/1075\/revisions\/1089"}],"wp:attachment":[{"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/media?parent=1075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/categories?post=1075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/tags?post=1075"},{"taxonomy":"years","embeddable":true,"href":"https:\/\/lotusarise.com\/qna\/wp-json\/wp\/v2\/years?post=1075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}