A winter cold nights pattern in the Northern Hemisphere lands: Circum−hemisphere teleconnection of extreme cold events

A winter cold nights pattern in the Northern Hemisphere lands: Circum−hemisphere teleconnection of extreme cold events | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article A winter cold nights pattern in the Northern Hemisphere lands: Circum−hemisphere teleconnection of extreme cold events Ning Wang, Jianping Li, Hao Wang, Hao Li, Zixiang Wu, Hongyuan Zhao This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4808848/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 06 Dec, 2024 Read the published version in Climate Dynamics → Version 1 posted 5 You are reading this latest preprint version Abstract This study discovers a teleconnection of winter cold nights (TN10p) in the Northern Hemisphere lands, termed as the Circum–hemisphere teleconnection (CHT) of extreme cold events (CHTe). The CHTe exhibits five distinct centers of action situated in the Southeastern North America, Baffin Bay Coast, Northern Europe, Middle East–North Africa, and Eastern Siberia. Notably, it displays significant interannual (~3a) and decadal (~10a) variabilities. Besides, the differences between the CHTe and several known atmospheric and oceanic modes are also illustrated in terms of the occurrence year, physical nature, temporal variability, and spatial structure. Meanwhile, a new atmospheric teleconnection pattern in the troposphere, named as the CHT, corresponds to the atmospheric circulation associated with the CHTe. During the positive CHTe events, the positive CHT events occur, resulting in significant positive geopotential height anomalies (GHTa) over the Central North Atlantic, Western Europe and Songhua River as well as significant negative GHTa over Greenland and Caspian Sea, and vice versa. Compared with the horizontal advections, vertical convections and diabatic heating, the CHT may mainly influence the local TN10p anomalies by modulating atmospheric thickness anomalies over five regions of the CHTe. Extreme cold events Teleconnection Circum–hemisphere teleconnection (CHT) of 51 extreme cold events (CHTe) Temperature diagnosis Atmospheric thickness Full Text Cite Share Download PDF Status: Published Journal Publication published 06 Dec, 2024 Read the published version in Climate Dynamics → Version 1 posted Editorial decision: Major Revision 25 Sep, 2024 Reviewers agreed at journal 06 Aug, 2024 Reviewers invited by journal 05 Aug, 2024 Editor assigned by journal 27 Jul, 2024 First submitted to journal 26 Jul, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4808848","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":336439674,"identity":"177ed28d-dd4d-48df-94ee-12046811a0e8","order_by":0,"name":"Ning Wang","email":"","orcid":"","institution":"Ocean University of China","correspondingAuthor":false,"prefix":"","firstName":"Ning","middleName":"","lastName":"Wang","suffix":""},{"id":336439675,"identity":"04a3e464-84c4-4cc0-8f75-0d5734e8ebc7","order_by":1,"name":"Jianping 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