{"id":381,"date":"2023-07-08T10:45:00","date_gmt":"2023-07-08T10:45:00","guid":{"rendered":"https:\/\/www.issibern.ch\/teams\/solactregars\/?page_id=381"},"modified":"2023-07-13T21:39:53","modified_gmt":"2023-07-13T21:39:53","slug":"team-meeting-3","status":"publish","type":"page","link":"https:\/\/www.issibern.ch\/teams\/solactregars\/main-page\/meetings\/team-meeting-3\/","title":{"rendered":"Team Meeting 3"},"content":{"rendered":"\r\n\r\n\r\n<p><strong><span style=\"color: #0000ff;font-size: 14pt\">Third team meeting: Bern, 10-14 July, 2023<\/span><\/strong><\/p>\r\n<p><strong><em>On-site participants:<\/em><\/strong><br \/>Bhowmik, Cameron, Charbonneau, Karak, Lemerle, Norton, Petrovay, Sreedevi, Upton, Yeates<\/p>\r\n<p><strong><em>Online attendees:<\/em><\/strong><br \/><em>Team members:<\/em> Theo Chatzistergos, Jie Jiang, Dibyendu Nandi, Kalevi Mursula<br \/><em>Young researchers:<\/em><br \/>Beijing: Zhang Zebin, Luo Yukun, Wang Ruihui <br \/>Budapest: Mohammed Talafha, Guilherme Nogueira, Laura Magyar<br \/>Kolkata: Shaonwita Pal, Chitradeep Saha, Priyansh Jaswal, Suprabha Mukhopadhyay<br \/>Montreal: Christian Tibeault<br \/>Stanford\/Bangalore: Bibhuti Jha<br \/>Varanasi: Akash Biswas, Pawan Kumar, Vindya Vashishth<\/p>\r\n<p><strong>Monday<\/strong><\/p>\r\n<p>09:00-12:30 informal discussions<\/p>\r\n<p>14:00 opening, brief self-intro of participants; <br \/>summary of work done by the team since 2019<\/p>\r\n<p>break<\/p>\r\n<p>15:30 Topic 1: Modelling the AR source<\/p>\r\n<p>Robert Cameron:<br \/>Joy&#8217;s law and the alpha effect,<\/p>\r\n<p>Anu Sreedevi:<br \/>Origins and evolution of BMR<\/p>\r\n<p>&nbsp;<\/p>\r\n<p><strong>Tuesday<\/strong><\/p>\r\n<p>9:30 Topic 2: The AR source: observations<\/p>\r\n<p>Ruihui Wang:<br \/>Catalogue of individual ARs as source term in SFT models<\/p>\r\n<p>Pawan Kumar:<br \/>Effect of irregular properties of BMR on the polar field and solar cycle <br \/>variability<\/p>\r\n<p>break<\/p>\r\n<p>Anthony Yeates:<br \/>Active regions in historical data<\/p>\r\n<p>&nbsp;<\/p>\r\n<p>14:00\u00a0<\/p>\r\n<p>Akash Biswas: <br \/>Exploring the reliability of polar field rise rate as a precursor for <br \/>an early prediction of solar cycle<\/p>\r\n<p>Topic 3: Meridional flow<\/p>\r\n<p>Prantika Bhowmik:<br \/>Memory of Solar Cycles in Fluctuating Meridional Circulation<\/p>\r\n<p>Mohammed Talafha:<br \/>Effect of active region inflows on polar field buildup<\/p>\r\n<p><br \/><strong>Wednesday<\/strong><\/p>\r\n<p>9:30 Topic 4: The underlying dynamo<\/p>\r\n<p>Kalevi Mursula:<br \/>Hale cycle in solar hemispheric radio flux and sunspots: <br \/>Evidence for a northward shifted relic field<\/p>\r\n<p>Priyansh Jaswal: <br \/>Discovery of a causal relation: the decay rate of the Sun&#8217;s <br \/>dipole moment is related to the rate of rise of the following <br \/>sunspot cycle<\/p>\r\n<p>break<\/p>\r\n<p>Jie Jiang:<br \/>Constraining the outer boundary condition for Babcock-Leighton <br \/>dynamo models<\/p>\r\n<p>14:00 The underlying dynamo -continued.<\/p>\r\n<p>Vindya Vashishth:<br \/>Grand minima and maxima in chaotic regimes of solar dynamo: <br \/>Comparison with observations<\/p>\r\n<p>Chitradeep Saha:<br \/>Origin of supermodulation in the Sun&#8217;s activity cycle <br \/><br \/><\/p>\r\n<p>break<\/p>\r\n<p>Paul Charbonneau:<br \/>Behavior of Babcock-Leighton-type dynamos in the moderately<br \/>to strongly supercritical regime, including interaction with<br \/>low-amplitude stochastic noise.<\/p>\r\n<p><br \/>19:00 Banquet<br \/>Restaurant Rosengarten<br \/><a href=\"https:\/\/www.rosengarten.be\/en\">https:\/\/www.rosengarten.be\/en<\/a><\/p>\r\n<p><br \/><strong>Thursday<\/strong><\/p>\r\n<p>9:30 Cycle prediction<\/p>\r\n<p>Lisa Upton: <br \/>Comparison of precursor based predictions of cycle 25<\/p>\r\n<p>Kristof Petrovay:<br \/>The Cycle 25 tension<\/p>\r\n<p>Shaonwita Pal:<br \/>Prediction of Solar Cycle 25 using algebraic quantification of sunspots<\/p>\r\n<p>&nbsp;<\/p>\r\n<p>14:00<\/p>\r\n<p>Alex Lemerle: <br \/>Systematic errors in cycle prediction<\/p>\r\n<p>Further topics:<\/p>\r\n<p>Bidya Karak:<br \/>Hemispheric asymmetry \/ coupling \/ nonlinearity<br \/><br \/>Aimee Norton:<br \/>On flux emergence rate in active regions<br \/><br \/>Lisa Upton:<br \/>Joy&#8217;s law in historical simulations<\/p>\r\n<p>&nbsp;<\/p>\r\n<p><br \/><strong>Friday<\/strong><\/p>\r\n<p>09:00-12:00 team plenary discussion &amp; official closing of project<\/p>\r\n<p>\u00a0 <a href=\"https:\/\/www.issibern.ch\/teams\/solactregars\/index.php\/main-page\/restricted-area\/slides\/\">Slides<\/a><\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n<p>\r\n\r\n<\/p>\r\n<p>\r\n\r\n\r\n\r\n<\/p>\r\n<p><\/p>\r\n<p><!-- \/wp:post-content -->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-414 size-full\" src=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712.jpg\" alt=\"\" width=\"1800\" height=\"1350\" srcset=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712.jpg 1800w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712-300x225.jpg 300w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712-1024x768.jpg 1024w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712-768x576.jpg 768w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712-1536x1152.jpg 1536w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/banquet230712-400x300.jpg 400w\" sizes=\"auto, (max-width: 1800px) 100vw, 1800px\" \/><\/p>\r\n<p><!-- \/wp:paragraph -->\r\n\r\n<!-- wp:shortcode \/-->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>&nbsp;<\/p>\r\n<p>On day 2 we decided to extend the team&#8217;s activities to experimental studies of the advection of passive scalars in a flow. Site testing indicated a section of the Aare river north of Bern&#8217;s old town as an optimal location. Some team members volunteered for test particles. Here are the brave ones:<\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-415 size-full\" src=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711.jpg\" alt=\"\" width=\"1977\" height=\"1318\" srcset=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711.jpg 1977w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711-300x200.jpg 300w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711-1024x683.jpg 1024w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711-768x512.jpg 768w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711-1536x1024.jpg 1536w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/braves230711-450x300.jpg 450w\" sizes=\"auto, (max-width: 1977px) 100vw, 1977px\" \/><\/p>\r\n<p><!-- \/wp:paragraph -->\r\n\r\n<!-- wp:shortcode \/-->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<p>The bravest of the brave combined this with an aerodynamic pilot project:<\/p>\r\n<div id=\"attachment_420\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/Aare_jump.mp4\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-420\" class=\"wp-image-420 size-medium\" src=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/bravest-300x166.jpg\" alt=\"\" width=\"300\" height=\"166\" srcset=\"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/bravest-300x166.jpg 300w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/bravest-768x425.jpg 768w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/bravest-500x277.jpg 500w, https:\/\/www.issibern.ch\/teams\/solactregars\/wp-content\/uploads\/sites\/180\/2023\/07\/bravest.jpg 886w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-420\" class=\"wp-caption-text\">[click to play movie]<\/p><\/div>\r\n<p>&nbsp;<\/p>\r\n<p><!-- \/wp:paragraph -->\r\n\r\n<!-- wp:shortcode \/-->\r\n\r\n<!-- wp:paragraph --><\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:shortcode \/-->\r\n\r\n<!-- wp:paragraph -->\r\n<p>&nbsp;<\/p>\r\n<!-- \/wp:paragraph -->","protected":false},"excerpt":{"rendered":"<p>&nbsp; On day 2 we decided to extend the team&#8217;s activities to experimental studies of the advection of passive scalars in a flow. Site testing indicated a section of the Aare river north of Bern&#8217;s old town as an optimal &hellip; <a href=\"https:\/\/www.issibern.ch\/teams\/solactregars\/main-page\/meetings\/team-meeting-3\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":14,"parent":22,"menu_order":16,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-381","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/pages\/381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/comments?post=381"}],"version-history":[{"count":22,"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/pages\/381\/revisions"}],"predecessor-version":[{"id":434,"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/pages\/381\/revisions\/434"}],"up":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/pages\/22"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/media\/14"}],"wp:attachment":[{"href":"https:\/\/www.issibern.ch\/teams\/solactregars\/wp-json\/wp\/v2\/media?parent=381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}