{"id":34473,"date":"2024-03-18T08:59:41","date_gmt":"2024-03-18T08:59:41","guid":{"rendered":"https:\/\/edukemy.com\/blog\/?p=34473"},"modified":"2024-03-18T08:59:43","modified_gmt":"2024-03-18T08:59:43","slug":"upsc-prelims-2017-question-66","status":"publish","type":"post","link":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/","title":{"rendered":"UPSC Prelims 2017 &#8211; Question 66"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/edukemy.com\/upsc\/upsc-prelims-test-series?utm_source=Blog&amp;utm_medium=Blog&amp;utm_campaign=Blog-%20PTS\" target=\"_blank\" rel=\"noreferrer noopener\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/02\/Prelims-Test-Series-eng-and-hindi-1280\u00d7330.svg\" alt=\"UPSC Prelims Mock Test - ECONOMY 2\" class=\"wp-image-24924\" width=\"779\" height=\"199\"\/><\/a><\/figure>\n\n\n\n<p>Here is Question No. 66 a part of our series on UPSC Prelims 2017<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6a4c6956678d1\" class=\"ez-toc-cssicon-toggle-label\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a4c6956678d1\"  \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#Q66_With_reference_to_%E2%80%98Indian_Ocean_Dipole_IOD_sometimes_mentioned_in_the_news_while_forecasting_the_Indian_monsoon_which_of_the_following_statements_isare_correct\" >Q66. With reference to \u2018Indian Ocean Dipole (IOD)\u2019. sometimes mentioned in the news while forecasting the Indian monsoon, which of the following statements is\/are correct?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#The_correct_answer_is%E2%80%AF2_only\" >The correct answer is\u202f2 only.&nbsp;<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Q66_With_reference_to_%E2%80%98Indian_Ocean_Dipole_IOD_sometimes_mentioned_in_the_news_while_forecasting_the_Indian_monsoon_which_of_the_following_statements_isare_correct\"><\/span>Q66. With reference to \u2018Indian Ocean Dipole (IOD)\u2019. sometimes mentioned in the news while forecasting the Indian monsoon, which of the following statements is\/are correct?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>IOD phenomenon is characterised by a the difference in sea surface temperature between the tropical Western Indian Ocean and tropical Eastern Pacific Ocean.<\/li><li>An IOD phenomenon can influence an El Nino\u2019s impact on the monsoon.<\/li><\/ol>\n\n\n\n<p>Select the correct answer using the code given below:<\/p>\n\n\n\n<p>a) 1 only<br>b) 2 only<br>c) Both 1 and 2<br>d) Neither 1 nor 2<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_correct_answer_is%E2%80%AF2_only\"><\/span>The correct answer is\u202f<strong>2 only<\/strong>.&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Indian Ocean Dipole (IOD)\u00a0<\/strong>\u00a0<\/li><li><strong>The difference in sea surface temperature between two poles or areas (hence a dipole) in the Indian Ocean, namely an eastern pole in the eastern Indian Ocean south of Indonesia and a western pole in the Arabian Sea (western Indian Ocean). Hence, statement 1 is incorrect.<\/strong>\u00a0<\/li><li>The IOD influences the climate of countries surrounding the Indian Ocean Basin, such as India and Australia, and is a significant contributor to rainfall variability in this region.\u00a0<\/li><li>The IOD is a coupled ocean-atmosphere phenomenon, similar to El Nino-Southern Oscillation (ENSO), but occurring in the equatorial Indian Ocean.\u00a0<\/li><li>The IOD is thought to be linked to ENSO events via an extension of the Walker Circulation to the west and associated Indonesian throughflow (the flow of warm tropical ocean water from the Pacific into the Indian Ocean).\u00a0\u00a0<\/li><li><strong>Hence, negative IOD events are frequently associated with La Nina, while positive events are associated with El Nino. Hence, statement 2 is correct.<\/strong>\u00a0<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/edukemy.com\/free-resources-for-upsc?utm_source=Blog&amp;utm_medium=Banner&amp;utm_campaign=Resources\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"1280\" height=\"300\" data-src=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/18.png\" alt=\"\" class=\"wp-image-42398 lazyload\" data-srcset=\"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/18.png 1280w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/18-1170x274.png 1170w, https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/06\/18-585x137.png 585w\" data-sizes=\"(max-width: 1280px) 100vw, 1280px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1280px; --smush-placeholder-aspect-ratio: 1280\/300;\" \/><\/a><\/figure>\n\n\n\n<p>For UPSC Prelims Resources,&nbsp;<a href=\"https:\/\/edukemy.com\/upsc-cse-prelims-resource-centre\" target=\"_blank\" rel=\"noreferrer noopener\">Click here<\/a><\/p>\n\n\n\n<p>For Daily Updates and Study Material:<\/p>\n\n\n\n<p>Join our Telegram Channel \u2013&nbsp;<a href=\"https:\/\/t.me\/WithEdukemy4IAS\" target=\"_blank\" rel=\"noreferrer noopener\">Edukemy for IAS<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>1. 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With reference to \u2018Indian Ocean Dipole (IOD)\u2019. sometimes mentioned in the news while forecasting the Indian monsoon, which of the following statements <\/p>\n","protected":false},"author":17,"featured_media":34474,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1644],"tags":[232,515],"class_list":["post-34473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-upsc-prelims","tag-upsc","tag-upsc-cse"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Q66. 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With reference to \u2018Indian Ocean Dipole (IOD)\u2019. sometimes mentioned in the news while forecasting the Indian monsoon, which of the following statements","canonical_url":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#blogposting","name":"UPSC Prelims 2017 - Question 66","headline":"UPSC Prelims 2017 &#8211; Question 66","author":{"@id":"https:\/\/edukemy.com\/blog\/author\/sanyoukta-shukla\/#author"},"publisher":{"@id":"https:\/\/edukemy.com\/blog\/#organization"},"image":{"@type":"ImageObject","url":"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/03\/Question-9-11.png","width":900,"height":600},"datePublished":"2024-03-18T08:59:41+00:00","dateModified":"2024-03-18T08:59:43+00:00","inLanguage":"en-US","mainEntityOfPage":{"@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#webpage"},"isPartOf":{"@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#webpage"},"articleSection":"UPSC Prelims, UPSC, UPSC CSE"},{"@type":"BreadcrumbList","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog#listItem","position":1,"name":"Home","item":"https:\/\/edukemy.com\/blog","nextItem":{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog\/category\/upsc-prelims\/#listItem","name":"UPSC Prelims"}},{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog\/category\/upsc-prelims\/#listItem","position":2,"name":"UPSC Prelims","item":"https:\/\/edukemy.com\/blog\/category\/upsc-prelims\/","nextItem":{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#listItem","name":"UPSC Prelims 2017 &#8211; Question 66"},"previousItem":{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#listItem","position":3,"name":"UPSC Prelims 2017 &#8211; Question 66","previousItem":{"@type":"ListItem","@id":"https:\/\/edukemy.com\/blog\/category\/upsc-prelims\/#listItem","name":"UPSC Prelims"}}]},{"@type":"Organization","@id":"https:\/\/edukemy.com\/blog\/#organization","name":"Edukemy","description":"Edukemy's Blog for aspirants","url":"https:\/\/edukemy.com\/blog\/","telephone":"+919773890615","logo":{"@type":"ImageObject","url":"https:\/\/edukemy.com\/blog\/wp-content\/uploads\/2024\/12\/edukemy-logo-horizontal.jpg","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#organizationLogo","width":512,"height":157},"image":{"@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#organizationLogo"},"sameAs":["https:\/\/www.facebook.com\/edukemy\/","https:\/\/x.com\/EdukemyOfficial","https:\/\/www.instagram.com\/edukemyforias\/?hl=en","https:\/\/www.youtube.com\/@EdukemyforIAS","https:\/\/www.linkedin.com\/company\/71977927\/admin\/dashboard\/"]},{"@type":"Person","@id":"https:\/\/edukemy.com\/blog\/author\/sanyoukta-shukla\/#author","url":"https:\/\/edukemy.com\/blog\/author\/sanyoukta-shukla\/","name":"Edukemy Team","image":{"@type":"ImageObject","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#authorImage","url":"https:\/\/secure.gravatar.com\/avatar\/08b080a995c146c9df575a1a4a9a4f1d?s=96&d=mm&r=g","width":96,"height":96,"caption":"Edukemy Team"}},{"@type":"WebPage","@id":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/#webpage","url":"https:\/\/edukemy.com\/blog\/upsc-prelims-2017-question-66\/","name":"UPSC Prelims 2017 - Question 66","description":"Q66. 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