{"id":280220,"date":"2023-09-24T19:09:53","date_gmt":"2023-09-24T17:09:53","guid":{"rendered":"https:\/\/climatescience.press\/?p=280220"},"modified":"2023-09-24T19:09:56","modified_gmt":"2023-09-24T17:09:56","slug":"long-lasting-la-nina-events-more-common-over-past-century","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=280220","title":{"rendered":"Long-lasting La Ni\u00f1a events more common over past\u00a0century"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

From Tallbloke’s Talkshop<\/a><\/p>\n\n\n\n

\u00a0September 24, 2023 by\u00a0oldbrew<\/strong>\u00a0<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u2018Global temperatures typically increase during an El Ni\u00f1o episode, and fall during La Ni\u00f1a\u2019 \u2013 says BBC Science<\/a>. This article also refers to \u2018El Ni\u00f1o and La Ni\u00f1a, the warm and cool phases of a recurring climate pattern\u2019. The featured research concludes that recent La Ni\u00f1as<\/a> are different, being more to do with warming, supported by \u2018complex computer simulations\u2019. The question is: does \u2018the recent increase in multiyear La Ni\u00f1as\u2019 (per the study title) since 1998 suggest more cooling, or not? In the climate science world we read that \u2018answers remain elusive\u2019.<\/em>
\u2013 \u2013 \u2013
Multiyear La Ni\u00f1a events have become more common over the last 100 years, according to a new study led by University of Hawai\u2019i (UH) at M\u0101noa atmospheric scientist Bin Wang.<\/p>\n\n\n\n

Five out of six La Ni\u00f1a events since 1998 have lasted more than one year, including an unprecedented triple-year event [Talkshop comment \u2013 no, occurred three times since 1950<\/a>]<\/em>. The study was published in Nature Climate Change.<\/p>\n\n\n\n

\u201cThe clustering of multiyear La Ni\u00f1a events is phenomenal given that only ten such events have occurred since 1920,\u201d said Wang, emeritus professor of atmospheric sciences in the UH M\u0101noa School of Ocean and Earth Science and Technology.<\/p>\n\n\n\n

El Ni\u00f1o and La Ni\u00f1a, the warm and cool phases of a recurring climate pattern across the tropical Pacific, affect weather and ocean conditions, which can, in turn, influence the marine environment and fishing industry in Hawai\u2019i and throughout the Pacific Ocean.<\/p>\n\n\n\n

Long-lasting La Ni\u00f1as could cause persistent climate extremes and devastating weather events, affecting community resilience, tourist industry and agriculture.<\/p>\n\n\n\n

Determining why so many multiyear La Ni\u00f1a events have emerged recently and whether they will become more common has sparked worldwide discussion among climate scientists, yet answers remain elusive.<\/p>\n\n\n\n

Wang and co-authors examined 20 La Ni\u00f1a events from 1920-2022 to investigate the fundamental reasons behind the historic change of the multiyear La Ni\u00f1a. Some long-lasting La Ni\u00f1as occurred after a super El Ni\u00f1o, which the researchers expected due to the massive discharge of heat from the upper-ocean following an El Ni\u00f1o.<\/p>\n\n\n\n

However, three recent multiyear La Ni\u00f1a episodes (2007\u201308, 2010\u201311, and 2020\u201322) did not follow this pattern.<\/p>\n\n\n\n

They discovered these events are fueled by warming in the western Pacific Ocean and steep gradients in sea surface temperature from the western to central Pacific.<\/p>\n\n\n\n

\u201cWarming in the western Pacific triggers the rapid onset and persistence of these events,\u201d said Wang. \u201cAdditionally, our study revealed that multiyear La Ni\u00f1a are distinguished from single-year La Ni\u00f1a by a conspicuous onset rate, which foretells its accumulative intensity and climate impacts.\u201d<\/p>\n\n\n\n

Results from complex computer simulations of climate support the observed link between multiyear La Ni\u00f1a events and western Pacific warming.<\/p>\n\n\n\n

Full article\u00a0here<\/a>.<\/em>
\u2013 \u2013 \u2013
Research article:\u00a0Understanding the recent increase in multiyear La Ni\u00f1as<\/a>.<\/p>\n\n\n\n

\"\"
Historical change of La Nina shows increasing frequency of multiyear events. Credit: Wang, et al., 2023<\/figcaption><\/figure>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Global temperatures typically increase during an El Ni\u00f1o episode, and fall during La Ni\u00f1a\u2019 \u2013 says\u00a0BBC Science. This article also refers to \u2018El Ni\u00f1o and La Ni\u00f1a, the warm and cool phases of a recurring climate pattern\u2019. The featured research concludes that\u00a0recent La Ni\u00f1as\u00a0are different, being more to do with warming, supported by \u2018complex computer simulations\u2019. The question is: does \u2018the recent increase in multiyear La Ni\u00f1as\u2019 (per the study title) since 1998 suggest more cooling, or not? In the climate science world we read that \u2018answers remain elusive\u2019.<\/p>\n","protected":false},"author":121246920,"featured_media":280227,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[691818522,691818056,691820621,691818087,691821130],"class_list":{"0":"post-280220","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-uncategorized","8":"tag-atmosphere","9":"tag-climate-change","10":"tag-computer-simulations","11":"tag-global-warming","12":"tag-ocean-dynamics","14":"fallback-thumbnail"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/09\/image-734.png?fit=2934%2C1406&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1aTG","jetpack-related-posts":[{"id":199808,"url":"https:\/\/climatescience.press\/?p=199808","url_meta":{"origin":280220,"position":0},"title":"The Big 5 Natural Causes of Climate Change Part 3: How La Nina Warms the World","author":"uwe.roland.gross","date":"14\/05\/2022","format":false,"excerpt":"Jim Steele Climate scientists agree any imbalance between the earth\u2019s absorption and release of energy can cause climate change. However, the question is how much of that imbalance is caused by ocean dynamics vs increasing CO2 concentrations. 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His latest paper pushes the narrative that global warming is increasing dangerous \u201cHydroclimate Whiplash\u201d fear mongering there is an increasing shift between wet years\u2026","rel":"","context":"In \"carbon dioxide (CO\u2082)\"","block_context":{"text":"carbon dioxide (CO\u2082)","link":"https:\/\/climatescience.press\/?tag=carbon-dioxide-co%e2%82%82"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/01\/0GhtBJqVaYAA4b_x.jpeg?fit=1200%2C1057&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/01\/0GhtBJqVaYAA4b_x.jpeg?fit=1200%2C1057&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/01\/0GhtBJqVaYAA4b_x.jpeg?fit=1200%2C1057&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/01\/0GhtBJqVaYAA4b_x.jpeg?fit=1200%2C1057&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/01\/0GhtBJqVaYAA4b_x.jpeg?fit=1200%2C1057&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":300205,"url":"https:\/\/climatescience.press\/?p=300205","url_meta":{"origin":280220,"position":3},"title":"What Period of Warming Best Correlates with Climate Sensitivity?","author":"uwe.roland.gross","date":"07\/02\/2024","format":false,"excerpt":"One way to investigate this problem is to look at climate model output across many models to see how their warming trends compare to those models\u2019 diagnosed equilibrium climate sensitivities (ECS). 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Are We Tipping To Cooling?","author":"uwe.roland.gross","date":"21\/04\/2023","format":false,"excerpt":"We\u2019ve had a La Ni\u00f1a for nearly three years. But now it has officially ended, and ENSO has moved into its neutral phase, the \u201cLa Nada\u201d.[1] The La Ni\u00f1a event lasted three winters in a row, something that has only occurred twice before in modern times: 1973\u20131976 and 1998\u20132001. Both\u2026","rel":"","context":"In \"CO2\"","block_context":{"text":"CO2","link":"https:\/\/climatescience.press\/?tag=co2"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/04\/0la-nina-versus-el-nino-winter-weather-pattern-comparison-north-america.png?fit=1200%2C575&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/04\/0la-nina-versus-el-nino-winter-weather-pattern-comparison-north-america.png?fit=1200%2C575&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/04\/0la-nina-versus-el-nino-winter-weather-pattern-comparison-north-america.png?fit=1200%2C575&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/04\/0la-nina-versus-el-nino-winter-weather-pattern-comparison-north-america.png?fit=1200%2C575&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/04\/0la-nina-versus-el-nino-winter-weather-pattern-comparison-north-america.png?fit=1200%2C575&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":232308,"url":"https:\/\/climatescience.press\/?p=232308","url_meta":{"origin":280220,"position":5},"title":"How The El Nino Is Changing","author":"uwe.roland.gross","date":"03\/12\/2022","format":false,"excerpt":"Let me start with a quick run through how mainstream climate scientists think the climate works, and then my hypothesis on how the climate works.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/12\/image-60.png?fit=1166%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/12\/image-60.png?fit=1166%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/12\/image-60.png?fit=1166%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/12\/image-60.png?fit=1166%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2022\/12\/image-60.png?fit=1166%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/280220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/users\/121246920"}],"replies":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=280220"}],"version-history":[{"count":5,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/280220\/revisions"}],"predecessor-version":[{"id":280228,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/280220\/revisions\/280228"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/media\/280227"}],"wp:attachment":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=280220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=280220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=280220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}