The day of this deployment started off as a beautiful, sunny, and warm day with some fog arriving late.\u00a0 Helicopter reconnaissance in the clear morning quickly located a small but suitable floe which stood out amongst the neighboring floes, and was found to be over 3 m thick when landed on and surveyed.\u00a0 An hour later the entire deployment team, supporting crewmembers, other scientists to perform ice measurements, and all equipment had been transferred to the floe and the work began.\u00a0 In the warm conditions, many removed their outer cold weather layer and performed their tasks in jeans and lighter wear for much of the day — atypical for the Arctic.<\/p>\r\n
While the 3.8 m thick ice at the ITP deployment site was ideal for ensuring a robust platform for the buoy, drilling the 10.5\u201d diameter hole through the thick ice becomes difficult as the auger goes deeper the ice shavings load the small auger engine.\u00a0 To assist, the tripod was assembled and the chainfall used to take some of the load of the auger head to facilitate the hole drilling which took about 45 minutes to complete.\u00a0 Twenty minutes later the inductive modem test completed, and the profiler lowered through the ice hole.\u00a0 The ITP system was completely installed and tested only 60 minutes after the hole was drilled, when the fog bank arrived.\u00a0 Half an hour later all were back onboard the ship.<\/p>\r\n
More information and photos on the deployment operations conducted during the IBO deployment are also available at:\u00a0https:\/\/www.whoi.edu\/page.do?pid=74256<\/a>.<\/p>\r\n\t\t\t\t\r\n\t\t\t\t ITP53 Deployment Operations ITP 53 was the first of four ITPs installed in the Beaufort Sea during the 2012 JOIS expedition aboard the\u00a0CCGS Louis St. Laurent\u00a0and consisted of hardware recovered \u00a0and refurbished from previous deployments.\u00a0 The surface unit was originally\u00a0ITP 27, which was originally deployed in the Transpolar Drift in 2008, and the buoy was…<\/p>\n","protected":false},"author":83,"featured_media":0,"parent":2426,"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\/2430"}],"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\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/comments?post=2430"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2430\/revisions"}],"predecessor-version":[{"id":3601,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2430\/revisions\/3601"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2426"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/media?parent=2430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"The](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSCN6988_455693.jpg\" "\\"DSCN6988_455693\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tThe ice floe where ITP53 would be deployed stands out during the morning helicopter reconassaince. (Rick Krishfield)\r\n\t\t\t\t\r\n\t\t\t\t![\"Jeff](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6033_455695.jpg\" "\\"DSC_6033_455695\\"")
\r\n\t\t\t\t<\/a>\r\n\t\t Jeff Pietro and John Kemp begin augering the 10.5\u201d diameter hole through the 3.8 m thick ice while Rick Krishfield clears snow. (Mary-Louise Timmermans)\r\n\t\t\t\t\r\n\t\t\t\t![\"While](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6160_455697.jpg\" "\\"DSC_6160_455697\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tWhen the small auger engine bogs down due to the accumulating snow on the flutes, the tripod is used to provide mechanical advantage. While Kemp and Steve Lambert auger, Pietro clear snow, and Gary Morgan operates the chainfall. (Mary-Louise Timmermans)\r\n\t\t\t\t\r\n\t\t\t\t![\"The](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6253_455699.jpg\" "\\"DSC_6253_455699\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tThe first inductive modem test is conducted before the ITP profiler is lowered into the water. (Mary-Louise Timmermans)\r\n\t\t\t\t\r\n\t\t\t\t![\"Kemp](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6288_455713.jpg\" "\\"DSC_6288_455713\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tKemp controls the brake to carefully spool out the 790 m of wire rope tether. (Mary-Louise Timmermans)\r\n\t\t\t\t\r\n\t\t\t\t![\"The](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6388_455701.jpg\" "\\"DSC_6388_455701\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tThe top bumper stop to prevent the ITP from ramming the bottom of the potted section of cable is attached by Lambert just before the surface package is deployed. (Mary-Louise Timmermans)\r\n\t\t\t\t\r\n\t\t\t\t![\"The](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6398_455597.jpg\" "\\"DSC_6398_455597\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tThe surface package is guided into place by Lambert and Krishfield while Pietro handles the tag line. (Mary-Louise Timmermans)\r\n\t\t\t\t\r\n\t\t\t\t![\"The](\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/10\/DSC_6415_455636.jpg\" "\\"DSC_6415_455636\\"")
\r\n\t\t\t\t<\/a>\r\n\t\tThe final inductive modem test to verify communications with the underwater unit is conducted before the tripod is disassembled. (Mary-Louise Timmermans)\r\n","protected":false},"excerpt":{"rendered":"