{"id":2166,"date":"2019-09-19T16:57:10","date_gmt":"2019-09-19T20:57:10","guid":{"rendered":"https:\/\/www2.whoi.edu\/site\/itp\/?page_id=2166"},"modified":"2021-07-20T13:05:43","modified_gmt":"2021-07-20T17:05:43","slug":"itp42-data-processing","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/site\/itp\/data\/completed-missions\/itp42\/itp42-data-processing\/","title":{"rendered":"ITP 042 Data Processing"},"content":{"rendered":"\r\n\t<h1>ITP42 Data Processing<\/h1>\r\n\t<p>The 386 profiles that were transmitted and recovered from the ITP were processed according to the procedures described in the\u00a0<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/08\/ITP_Data_Processing_Procedures_35803-1.pdf\">ITP Updated Data Processing Procedures<\/a>.\u00a0 The processing parameters for ITP 42 are shown in the figures to the right.\u00a0 Buoy drift speeds infrequently exceeded 30 cm\/s so the profiler covered the full extent of over 98% of the profiles. \u00a0The CTD sensors were largely free of fouling, providing over 90% good data return.<\/p>\r\n<p>Thermohaline staircases were present at the beginning and end of the time series, enabling CTD lag corrections. All of the lags were in the typical range as previous systems and did not vary significantly.\u00a0 Potential conductivity exhibited some small spikes on 2 down profiles and larger shift over 6 other consecutive profiles.\u00a0 In general, the data quality is excellent over the short record.<\/p>\r\n<p>See the Data Products tab to the left for descriptions of the three levels (I, II, III) of data processing and to access all data.<\/p>\r\n\t\t\t\t<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42loc2_449917.jpg\" target=\"_self\" rel=\"noopener noreferrer\">\r\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42loc2_449917.jpg\" alt=\"ITP Surface Buoy Status\" height=\"1730\" width=\"1000\" title=\"itp42loc2_449917\" \/>\r\n\t\t\t\t<\/a>\r\n\t\tITP Surface Buoy Status\r\n\t\t\t\t<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42dat1_449919.jpg\" target=\"_self\" rel=\"noopener noreferrer\">\r\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42dat1_449919.jpg\" alt=\"ITP profiler engineering data.\" height=\"1480\" width=\"1560\" title=\"itp42dat1_449919\" \/>\r\n\t\t\t\t<\/a>\r\n\t\tITP profiler engineering data.\r\n\t\t\t\t<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42final1_449953.jpg\" target=\"_self\" rel=\"noopener noreferrer\">\r\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42final1_449953.jpg\" alt=\"Data\" height=\"2701\" width=\"2047\" title=\"itp42final1_449953\" \/>\r\n\t\t\t\t<\/a>\r\n\t\tTop: number of bad points removed, Middle: variance of verticle difference of temperature and salinity in step region for up-going profiles, Bottom: temperature lag.\r\n\t\t\t\t<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42final2_449955.jpg\" target=\"_self\" rel=\"noopener noreferrer\">\r\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42final2_449955.jpg\" alt=\"Data\" height=\"2736\" width=\"2039\" title=\"itp42final2_449955\" \/>\r\n\t\t\t\t<\/a>\r\n\t\tTop: conductivity lag, Middle: conductivity thermal mass amplitude correction, Bottom: conductivity thermal mass lag correction.\r\n\t\t\t\t<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42final3_449957.jpg\" target=\"_self\" rel=\"noopener noreferrer\">\r\n\t\t\t\t<img loading=\"lazy\" src=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/09\/itp42final3_449957.jpg\" alt=\"Data\" height=\"2716\" width=\"2032\" title=\"itp42final3_449957\" \/>\r\n\t\t\t\t<\/a>\r\n\t\tTop: down pressure deviation correction, Middle: salinity ratio adjustment, Bottom: Number of filtered spikes.\r\n","protected":false},"excerpt":{"rendered":"<p>ITP42 Data Processing The 386 profiles that were transmitted and recovered from the ITP were processed according to the procedures described in the\u00a0ITP Updated Data Processing Procedures.\u00a0 The processing parameters for ITP 42 are shown in the figures to the right.\u00a0 Buoy drift speeds infrequently exceeded 30 cm\/s so the profiler covered the full extent&hellip;<\/p>\n","protected":false},"author":83,"featured_media":0,"parent":2142,"menu_order":3,"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\/2166"}],"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=2166"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2166\/revisions"}],"predecessor-version":[{"id":3566,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2166\/revisions\/3566"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2142"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/media?parent=2166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}