{"id":1213,"date":"2023-07-03T02:41:58","date_gmt":"2023-07-03T01:41:58","guid":{"rendered":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/?page_id=1213"},"modified":"2023-07-03T02:41:58","modified_gmt":"2023-07-03T01:41:58","slug":"abstract249","status":"publish","type":"page","link":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/","title":{"rendered":"Abstract 249"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text]Abstract ID:<\/strong> 249<\/p>\n

ENSO-MJO effects on the lifecycle of North Pacific Atmospheric Rivers<\/h2>\n

Lead Author:<\/strong> La\u00eds Fernandes
\nPortland State University, United States of America
\n<\/span><\/p>\n

Keywords:<\/strong> ENSO-MJO Interaction, MJO-AR lifecycle relationships, North Pacific ARs, AR precipitation, AR extreme events<\/p>\n

Abstract:<\/strong> This study investigates how the El Ni\u00f1o-Southern Oscillation influences the modulation of cold-season North Pacific atmospheric river (AR) lifecycle characteristics by the Madden-Julian Oscillation (MJO) and associated AR-landfall driven precipitation extremes over North America. For ARs that originate between 0\u00b0N-60\u00b0N and 100\u00b0E-100\u00b0W, MJO phases 6-8 are associated with the highest AR lifecycle frequency over the North Pacific compared to other MJO phases. During El Ni\u00f1o, the highest AR lifecycle frequency in MJO phases 6-8 in the subtropics shifts to the east compared to the climatological mean. This El Ni\u00f1o effect on the MJO-AR lifecycle relationship is stronger than the El Ni\u00f1o modulation alone. The El Ni\u00f1o background changes the key drivers of the MJO-AR lifecycle relationship in these MJO phases by shifting MJO-driven convection to the east of 180\u00b0 and extending the North Pacific subtropical jet eastward. Under these conditions, a weakened MJO extratropical teleconnection is triggered east of 180\u00b0 and results in a significant cyclonic circulation anomaly along the United States (US) coast. Consequently, under El Ni\u00f1o, landfalling North Pacific ARs in MJO phases 6-8 more often impact the southern tier of the US, enhancing positive precipitation anomalies and increasing the frequency of AR-related extreme precipitation events across California and even the southeast US. At the same time, enhanced negative precipitation anomalies and decreased frequency of AR extreme precipitation events occur over the northwestern US and western Canada. Results provide new useful insight into the drivers of AR and precipitation variability along the west coast of North America with novel implications for improving S2S predictions.<\/p>\n

Co-authors:
\n<\/strong>Paul Loikith (Portland State University)[\/vc_column_text][vc_separator][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/6″][vc_single_image image=”344″ img_size=”full” onclick=”custom_link” link=”http:\/\/s2sprediction.net\/”][\/vc_column][vc_column width=”1\/6″][vc_single_image image=”345″ img_size=”full” onclick=”custom_link” link=”https:\/\/public.wmo.int\/en”][\/vc_column][vc_column width=”1\/6″][vc_single_image image=”346″ img_size=”full” onclick=”custom_link” link=”https:\/\/community.wmo.int\/activity-areas\/wwrp”][\/vc_column][vc_column width=”1\/6″][vc_single_image image=”347″ img_size=”full” onclick=”custom_link” link=”https:\/\/www.wcrp-climate.org\/”][\/vc_column][vc_column width=”1\/6″][vc_single_image image=”348″ img_size=”full”][\/vc_column][vc_column width=”1\/6″][vc_single_image image=”349″ img_size=”full” onclick=”custom_link” link=”https:\/\/www.reading.ac.uk\/”][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

[vc_row][vc_column][vc_column_text]Abstract ID: 249 ENSO-MJO effects on the lifecycle of North Pacific Atmospheric Rivers Lead Author: La\u00eds Fernandes Portland State University, United States of America Keywords: ENSO-MJO Interaction, MJO-AR lifecycle relationships,…Read More ><\/a><\/p>\n","protected":false},"author":145,"featured_media":0,"parent":528,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"__cvm_playback_settings":[],"__cvm_video_id":"","footnotes":""},"coauthors":[13],"class_list":["post-1213","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nAbstract 249 - WWRP\/WCRP S2S Summit 2023<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Abstract 249 - WWRP\/WCRP S2S Summit 2023\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column][vc_column_text]Abstract ID: 249 ENSO-MJO effects on the lifecycle of North Pacific Atmospheric Rivers Lead Author: La\u00eds Fernandes Portland State University, United States of America Keywords: ENSO-MJO Interaction, MJO-AR lifecycle relationships,...Read More >\" \/>\n<meta property=\"og:url\" content=\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/\" \/>\n<meta property=\"og:site_name\" content=\"WWRP\/WCRP S2S Summit 2023\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data2\" content=\"Robert Lee\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/\",\"url\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/\",\"name\":\"Abstract 249 - WWRP\/WCRP S2S Summit 2023\",\"isPartOf\":{\"@id\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/#website\"},\"datePublished\":\"2023-07-03T01:41:58+00:00\",\"dateModified\":\"2023-07-03T01:41:58+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Programme\",\"item\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Abstract 249\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/#website\",\"url\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/\",\"name\":\"WWRP\/WCRP S2S Summit 2023\",\"description\":\"Advancing Sub-seasonal to Seasonal Predictions and their Applications\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/research.reading.ac.uk\/s2s-summit2023\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Abstract 249 - WWRP\/WCRP S2S Summit 2023","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/","og_locale":"en_GB","og_type":"article","og_title":"Abstract 249 - WWRP\/WCRP S2S Summit 2023","og_description":"[vc_row][vc_column][vc_column_text]Abstract ID: 249 ENSO-MJO effects on the lifecycle of North Pacific Atmospheric Rivers Lead Author: La\u00eds Fernandes Portland State University, United States of America Keywords: ENSO-MJO Interaction, MJO-AR lifecycle relationships,...Read More >","og_url":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/","og_site_name":"WWRP\/WCRP S2S Summit 2023","twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"2 minutes","Written by":"Robert Lee"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/","url":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/","name":"Abstract 249 - WWRP\/WCRP S2S Summit 2023","isPartOf":{"@id":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/#website"},"datePublished":"2023-07-03T01:41:58+00:00","dateModified":"2023-07-03T01:41:58+00:00","breadcrumb":{"@id":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/abstract249\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/"},{"@type":"ListItem","position":2,"name":"Programme","item":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/programme\/"},{"@type":"ListItem","position":3,"name":"Abstract 249"}]},{"@type":"WebSite","@id":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/#website","url":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/","name":"WWRP\/WCRP S2S Summit 2023","description":"Advancing Sub-seasonal to Seasonal Predictions and their Applications","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"}]}},"_links":{"self":[{"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/pages\/1213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/users\/145"}],"replies":[{"embeddable":true,"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/comments?post=1213"}],"version-history":[{"count":2,"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/pages\/1213\/revisions"}],"predecessor-version":[{"id":1234,"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/pages\/1213\/revisions\/1234"}],"up":[{"embeddable":true,"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/pages\/528"}],"wp:attachment":[{"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/media?parent=1213"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/research.reading.ac.uk\/s2s-summit2023\/wp-json\/wp\/v2\/coauthors?post=1213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}