{"id":22761,"date":"2020-12-17T14:57:14","date_gmt":"2020-12-17T09:27:14","guid":{"rendered":"https:\/\/newsmakhani.com\/?p=22761"},"modified":"2020-12-18T15:00:53","modified_gmt":"2020-12-18T09:30:53","slug":"research-done-informed-that-disturbance-from-the-north-atlantic-could-be-possible-reason-why-indian-monsoon-derails-in-august","status":"publish","type":"post","link":"https:\/\/newsnarad.com\/pa\/research-done-informed-that-disturbance-from-the-north-atlantic-could-be-possible-reason-why-indian-monsoon-derails-in-august\/","title":{"rendered":"Research done informed that Disturbance from the North Atlantic could be possible reason why Indian monsoon derails in August"},"content":{"rendered":"

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Research done informed that Disturbance from the North Atlantic could be possible reason why Indian monsoon derails in August
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DECEMBER 18th<\/strong><\/div>\n
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A planetary wave from the North Atlantic is capable of derailing the Indian monsoon on which the Indian economy is heavily dependent, suggests a study published in the journal\u00a0Science. The findings suggest that modelling efforts asked to focus on the including the influence of mid-latitudes, in addition to the Pacific and Indian oceans, for getting a better handle on predictability of the monsoon, its variability as well as droughts.<\/p>\n

A team from the\u00a0Centre for Atmospheric and Oceanic Sciences (CAOS), Indian Institute of Science (IISc), who carried out the research, supported in part by DST under their climate change programme, showed that, in the past century, Indian monsoon droughts that occurred in non-El Ni\u00f1o years\u00a0were sub-seasonal, as against El Ni\u00f1o droughts, where the deficit persists throughout the season.<\/strong><\/p>\n

The research team analyzed daily rainfall during the two categories of droughts from 1900 to 2015 and noticed dramatic differences in the evolution of rainfall deficit. Rainfall deficit in El Ni\u00f1o droughts sets in early around mid-June and becomes progressively worse. By mid-August, the deficit is very high and spread across the country, with no sign of recovery.\u00a0 During non-El Ni\u00f1o droughts there is a moderate reduce in June rainfall, followed by signs of recovery during mid-July to mid-August \u2012 the peak of the season.\u00a0 However, in late August, there is an sudden\u00a0and steep fall in rainfall, resulting in drought conditions.<\/p>\n

\u201cWe tried to trace this late August break to a forcing agent or system that influences the behaviour over India. We looked at the winds that were prevalent in these non-El Ni\u00f1o drought years,\u201d said Jai Sukhatme, Associate Professor at CAOS, and one of the senior authors, in an IISC statement. \u201cThe interaction between upper level winds and deep cyclonic vorticity anomalies located above anomalously cold North Atlantic waters during late August to early September results in an atmospheric disturbance. This disturbance, a Rossby wave, curves in towards India and, apparently squeezed in by the Tibetan Plateau, disrupts the flow of the monsoon winds,\u201d V Venugopal, Associate Professor at CAOS, and a co-author explained. The atmospheric teleconnection studied in this paper whose first author was a PhD student Pritam Borah with DST inspire fellowship, offers an avenue for improved predictability of droughts, especially in the absence of tell-tale signs in the Pacific.<\/p>\n

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\u0a2e\u0a3e\u0a2b\u0a3c \u0a15\u0a30\u0a28\u0a3e, \u0a07\u0a39 \u0a16\u0a2c\u0a30 \u0a24\u0a41\u0a39\u0a3e\u0a21\u0a40 \u0a2c\u0a47\u0a28\u0a24\u0a40 \u0a2d\u0a3e\u0a38\u0a3c\u0a3e \u0a35\u0a3f\u0a71\u0a1a \u0a09\u0a2a\u0a32\u0a2c\u0a27 \u0a28\u0a39\u0a40\u0a02 \u0a39\u0a48\u0964 \u0a15\u0a3f\u0a30\u0a2a\u0a3e \u0a15\u0a30\u0a15\u0a47 \u0a07\u0a71\u0a25\u0a47 \u0a26\u0a47\u0a16\u0a4b\u0964 Research done informed that Disturbance from the North Atlantic could be possible reason why Indian monsoon derails in August DECEMBER 18th A planetary wave from the North Atlantic is capable of derailing the Indian monsoon on which the Indian economy […]<\/p>\n","protected":false},"author":6,"featured_media":22648,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122],"tags":[12971],"class_list":["post-22761","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news","tag-research-done-informed-that-disturbance-from-the-north-atlantic-could-be-possible-reason-why-indian-monsoon-derails-in-august"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/posts\/22761","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/comments?post=22761"}],"version-history":[{"count":0,"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/posts\/22761\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/media\/22648"}],"wp:attachment":[{"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/media?parent=22761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/categories?post=22761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/newsnarad.com\/pa\/wp-json\/wp\/v2\/tags?post=22761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}