{"id":3897,"date":"2022-02-28T10:01:37","date_gmt":"2022-02-28T14:01:37","guid":{"rendered":"https:\/\/www2.whoi.edu\/site\/itp\/?page_id=3897"},"modified":"2024-01-16T13:05:00","modified_gmt":"2024-01-16T17:05:00","slug":"itp64-deployment-operations","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/site\/itp\/data\/completed-missions\/itp64\/itp64-deployment-operations\/","title":{"rendered":"ITP 064 Deployment Operations"},"content":{"rendered":"\r\n\r\n\t

ITP64 Deployment Operations<\/h1>\r\n\t

After deploying ITPs (numbers 65 & 66) on ice stations the previous 2 days, limited ship time and limited ice floes required that ITP 64 be deployed over-the-side of the ship into open water near an ice edge. Deploying an ITP directly in the ocean is less preferable than on ice, since it may encounter significant wave motion which obstructs the profiler before the ice freezes around the buoy, and can decrease instrument durability. However, not having to stage an ice operation nor auger a hole through an ice floe saves a significant amount of deployment time.<\/p>\r\n

The ice nearby and lack of winds produced light fog for the deployment. The ITP buoy, wire, anchor and winch were moved from the helicopter staging area to the foredeck for the deployment which occurred using the starboard A-frame and crane. The same ITP deployment winch that would have been used on the ice was secured to the hydro winch bolted to the ship’s deck, and the wire fed through a block suspended from the A-frame.<\/p>\r\nLight winds kept the ice away from the side of the ship during the deployment, and without the need to drill a hole in a floe, the ITP profiler could be lowered over-the-side on the bottom bumper on the wire above the anchor. The wire was unspooled using the winch brake in an hour, then the SAMI assembly consisting of SAMI pCO2, SBE 37 microcat and SBE inductive modem were clamped to the top the wire at ~6m, just below the potted section of cable and above a top bumper placed to mechanically prevent the ITP from profiling into the SAMI. Ten minutes later, the mooring was transferred to the buoy, and the system released into the Arctic.
\r\nMore information and photos on the deployment operations are also available at: https:\/\/archives.whoi.edu\/beaufortgyre\/www.whoi.edu\/page.do@pid=111517.html.\r\n\t\t\t\t\r\n\t\t\t\t\"The\r\n\t\t\t\t<\/a>\r\n\t\tThe ITP deployment winch and reel are fastened to the hydro winch on the foredeck for deployment over-the-side. (Photo by Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t\"Jim\r\n\t\t\t\t<\/a>\r\n\t\tJim Dunn controls the unspooling of the mooring wire with the winch brake. (Photo by Steve Lambert)\r\n\t\t\t\t\r\n\t\t\t\t\"Newhall\r\n\t\t\t\t<\/a>\r\n\t\tNewhall and Bosun Rico Amario guide the profiler over-the-side on the mooring wire bottom bumper. (Photo by Steve Lambert)\r\n\t\t\t\t\r\n\t\t\t\t\"The\r\n\t\t\t\t<\/a>\r\n\t\tThe surface package is coupled to the top of the mooring tether by Steve Lambert. (Photo by Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t\"The\r\n\t\t\t\t<\/a>\r\n\t\tThe mooring load is transferred in preparation for taking the load by the buoy suspended from the crane. (Photo by Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t\"Mike\r\n\t\t\t\t<\/a>\r\n\t\tMike DeGrandpre attaches the SAMI to ITP wire. (Photo by Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t\"The\r\n\t\t\t\t<\/a>\r\n\t\tThe complete ITP system is lowered into the seawater by the ship’s crane. (Photo by Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t\"Successful\r\n\t\t\t\t<\/a>\r\n\t\tSuccessful communications with the profiler by Lambert verifies the integrity of the mooring inductive modem circuit. (Photo by Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t\"The\r\n\t\t\t\t<\/a>\r\n\t\tThe moment that the surface floatation package is released. (Photo by Gary Morgan)\r\n\t\t\t\t\"\"\r\n\r\n","protected":false},"excerpt":{"rendered":"

ITP64 Deployment Operations After deploying ITPs (numbers 65 & 66) on ice stations the previous 2 days, limited ship time and limited ice floes required that ITP 64 be deployed over-the-side of the ship into open water near an ice edge. Deploying an ITP directly in the ocean is less preferable than on ice, since…<\/p>\n","protected":false},"author":99,"featured_media":0,"parent":3893,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"tpl-sidebar.php","meta":{"advanced-sidebar-menu\/link-title":"","advanced-sidebar-menu\/exclude-page":false},"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/3897"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/users\/99"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/comments?post=3897"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/3897\/revisions"}],"predecessor-version":[{"id":4728,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/3897\/revisions\/4728"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/3893"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/media?parent=3897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}