{"id":4130,"date":"2000-04-14T20:30:40","date_gmt":"2000-04-14T20:30:40","guid":{"rendered":"http:\/\/thales.mit.edu\/bush\/?p=4130"},"modified":"2021-04-15T00:36:10","modified_gmt":"2021-04-15T00:36:10","slug":"line-plumes-in-rotation-leads-and-megaplumes","status":"publish","type":"post","link":"https:\/\/thales.mit.edu\/bush\/index.php\/2000\/04\/14\/line-plumes-in-rotation-leads-and-megaplumes\/","title":{"rendered":"Line plumes in rotation"},"content":{"rendered":"\n<div class=\"wp-block-cover alignwide has-subtle-background-color has-background-dim\"><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"http:\/\/math.mit.edu\/~bush\/wordpress\/wp-content\/uploads\/2012\/04\/greenplume1.jpg\"><img decoding=\"async\" src=\"http:\/\/math.mit.edu\/~bush\/wordpress\/wp-content\/uploads\/2012\/04\/greenplume1.jpg\" alt=\"\" class=\"wp-image-558\" title=\"greenplume1\"\/><\/a><\/figure><\/div>\n\n\n\n<p class=\"tw-text-wide has-extra-small-font-size\">The development of coherent vortices from the discharge of a 40 cm long line plume into a rotating stratified fluid, as viewed from above. The plume rises to its level of neutral buoyancy, where it spreads as a neutral cloud. The spreading is influenced by the system rotation: the Coriolis force generates a strong shear across the neutral cloud, which goes unstable and breaks into six anticyclonic lens-shaped vortices. The dependence of the scale of the structures on the source conditions is developed on the basis of scaling arguments, and validated experimentally in &nbsp;<a href=\"http:\/\/math.mit.edu\/~bush\/wordpress\/wp-content\/uploads\/2012\/04\/bushwoods.pdf\">Bush &amp; Woods, JFM (1999)<\/a>&nbsp;. The relevance of this study to two oceanographic problems has been considered.<\/p>\n\n\n\n<p class=\"tw-text-wide has-extra-small-font-size\">The discharge of hydrothermal fluid from active mid-ocean ridge spreading centers is discussed in &nbsp;<a href=\"http:\/\/math.mit.edu\/~bush\/wordpress\/wp-content\/uploads\/2012\/04\/Megaplumes.pdf\">Woods &amp; Bush (1999)<\/a>, and the generation of arctic eddies by lead-induced thermohaline convection in&nbsp;<a href=\"http:\/\/math.mit.edu\/~bush\/wordpress\/wp-content\/uploads\/2012\/04\/Leads-BushWoods2000.pdf\">Bush &amp; Woods (2000)<\/a>&nbsp;.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":4776,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-4130","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geo","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Line plumes in rotation - John W. M. Bush<\/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:\/\/thales.mit.edu\/bush\/index.php\/2000\/04\/14\/line-plumes-in-rotation-leads-and-megaplumes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Line plumes in rotation - John W. M. Bush\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thales.mit.edu\/bush\/index.php\/2000\/04\/14\/line-plumes-in-rotation-leads-and-megaplumes\/\" \/>\n<meta property=\"og:site_name\" content=\"John W. M. 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