{"id":3688,"date":"2024-09-11T08:05:04","date_gmt":"2024-09-11T12:05:04","guid":{"rendered":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/?page_id=3688"},"modified":"2024-09-11T08:05:04","modified_gmt":"2024-09-11T12:05:04","slug":"2024-dispatch-11","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/expeditions\/2024-expedition\/2024-dispatches\/2024-dispatch-11\/","title":{"rendered":"Dispatch 11: Deployment of TOP"},"content":{"rendered":"\n\n\t<h1>Dispatch 11: Deployment of TOP<\/h1>\n\t<h3>Ashley Arroyo (Yale University)<\/h3>\n<h3>September 9, 2024<br \/>\n16:30 UTC, 77.42\u00b0N 149.29\u00b0W<\/h3>\n<p>Conditions:<\/p>\n<ul>\n<li>Mostly cloudy<\/li>\n<li>50% sea ice cover<\/li>\n<li>-2.4\u00b0C<\/li>\n<li>Winds 12.6 knots northerly<\/li>\n<li>Sunrise: 08-Sep-2024 07:54:41 -06<\/li>\n<li>Sunset: 08-Sep-2024 23:57:32 -06<\/li>\n<li>Day length: 16h 2mn 51s<\/li>\n<\/ul>\n<p>Today, the buoy team from Woods Hole Oceanographic Institution (WHOI) and the deck crew deployed a Tethered-Ocean Profiler (TOP 15) in open water, which involved lowering the instrument off the side of the forward deck into the ocean. TOP 15 has a deep tether and can measure ocean properties down to ~750 meters, returning information about temperature and salinity through the warm Atlantic Water layer that centers around 500 m depth. The deep TOP also has a thermistor chain coming down through the surface float, which measures temperature through the sea ice and into the upper ocean. Like other TOPs, this TOP bumps up to the underside of the sea ice, recording its depth which gives us a full record of ice thickness as the ice grows throughout the winter season.<\/p>\n<p>The TOP deployment went smoothly (it took less than an hour to complete). As soon as the deployment was complete, we did a quick CTD cast at the same location so that the buoy team could compare the temperature and salinity profiles to those transmitted by TOP 15. This cast was short and sweet (~35 minutes), as we only lowered the rosette down to 800 meters and did not take any water samples in the Niskin bottles. Once the rosette was back on board, the Louis began on its transit to station CB-12!<\/p>\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-content\/uploads\/sites\/108\/2024\/09\/map-9.png\" alt=\"Map of our current location.\" height=\"348\" width=\"472\" title=\"map\" \/>\n\t\tMap of our current location.\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-content\/uploads\/sites\/108\/2024\/09\/photo1-6.jpg\" alt=\"Tim McDonough prepares the TOP surface package.\" height=\"831\" width=\"626\" title=\"photo1\" \/>\n\t\tTim McDonough prepares the TOP surface package.\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-content\/uploads\/sites\/108\/2024\/09\/photo2-7.jpg\" alt=\"The TOP profiling unit and weights suspended over the side of the ship\" height=\"1017\" width=\"770\" title=\"photo2\" \/>\n\t\tThe TOP profiling unit and weights suspended over the side of the ship\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-content\/uploads\/sites\/108\/2024\/09\/photo3-6.jpg\" alt=\"Bosun Rico Amamio, Nico Llanos, and Eric Trotto pay out wire during the TOP deployment\" height=\"577\" width=\"766\" title=\"photo3\" \/>\n\t\tBosun Rico Amamio, Nico Llanos, and Eric Trotto pay out wire during the TOP deployment\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-content\/uploads\/sites\/108\/2024\/09\/Photo4-6.jpg\" alt=\"TOP15 begins its sampling journey\" height=\"656\" width=\"495\" title=\"Photo4\" \/>\n\t\tTOP15 begins its sampling journey\n\n","protected":false},"excerpt":{"rendered":"<p>Dispatch 11: Deployment of TOP Ashley Arroyo (Yale University) September 9, 2024 16:30 UTC, 77.42\u00b0N 149.29\u00b0W Conditions: Mostly cloudy 50% sea ice cover -2.4\u00b0C Winds 12.6 knots northerly Sunrise: 08-Sep-2024 07:54:41 -06 Sunset: 08-Sep-2024 23:57:32 -06 Day length: 16h 2mn 51s Today, the buoy team from Woods Hole Oceanographic Institution (WHOI) and the deck crew&hellip;<\/p>\n","protected":false},"author":188,"featured_media":0,"parent":3557,"menu_order":11,"comment_status":"closed","ping_status":"closed","template":"tpl-sidebar.php","meta":{"advanced-sidebar-menu\/link-title":"Dispatch 11: Deployment of TOP","advanced-sidebar-menu\/exclude-page":false},"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3688"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/users\/188"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/comments?post=3688"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3688\/revisions"}],"predecessor-version":[{"id":3696,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3688\/revisions\/3696"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/pages\/3557"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/beaufortgyre\/wp-json\/wp\/v2\/media?parent=3688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}