{"id":2588,"date":"2019-11-21T16:08:49","date_gmt":"2019-11-21T20:08:49","guid":{"rendered":"https:\/\/www2.whoi.edu\/site\/itp\/?page_id=2588"},"modified":"2021-07-20T13:31:56","modified_gmt":"2021-07-20T17:31:56","slug":"itp58-data-processing","status":"publish","type":"page","link":"https:\/\/www2.whoi.edu\/site\/itp\/data\/completed-missions\/itp58\/itp58-data-processing\/","title":{"rendered":"ITP 058 Data Processing"},"content":{"rendered":"\r\n\t<h1>ITP58 Data Processing<\/h1>\r\n\t<p>The 950 profiles that were transmitted 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 this ITP are shown in the figures to the right.<\/p>\r\n<p>Large series of fouled salinity profiles were removed between profiles 51-63, 89-148, and 890-904.\u00a0 Dissolved oxygen profiles between 49-440 were all removed due to presumed fouling, as the sensor recovered afterwards.\u00a0 Thermohaline staircases were not well defined, so that initial estimates for CTD lag corrections were poorly determined. These initial values were manually modified to reduce density spikes and inversions presumably related to reduced flow through the sensors. \u00a0Thermal lag estimates were relatively large and variable, particularly after profile 400.\u00a0 On the other hand, the conductivity lag and thermal mass estimates were large and variable during the first 400 profiles, but stabilized at more typical values for later profiles.\u00a0 Dissolved oxygen ratio adjustments were also somewhat variable throughout. The potential conductivity adjustment increased nearly 20% after profile 882, all salinities and dissolved oxygen are questionable after profile 899, and all data from profiles after 928 were removed.<\/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\/11\/itp58loc2_510553.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\/11\/itp58loc2_510553.jpg\" alt=\"ITP Surface Buoy Status.\" height=\"1730\" width=\"1000\" title=\"itp58loc2_510553\" \/>\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\/11\/itp58dat1_510495.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\/11\/itp58dat1_510495.jpg\" alt=\"ITP profiler engineering data.\" height=\"1480\" width=\"1560\" title=\"itp58dat1_510495\" \/>\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\/11\/itp58final1_513433.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\/11\/itp58final1_513433.jpg\" alt=\"Top: number of bad points removed, Middle: variance of verticle difference of temperature and salinity in step region for up-going profiles, Bottom: temperature lag.\" height=\"5447\" width=\"4088\" title=\"itp58final1_513433\" \/>\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\/11\/itp58final2_513453.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\/11\/itp58final2_513453.jpg\" alt=\"Top: conductivity lag, Middle: conductivity thermal mass amplitude correction, Bottom: conductivity thermal mass lag correction.\" height=\"5455\" width=\"4073\" title=\"itp58final2_513453\" \/>\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\/11\/itp58final3_513473.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\/11\/itp58final3_513473.jpg\" alt=\"Top: down pressure deviation correction, Middle: salinity ratio adjustment, Bottom: number of filtered spikes.\" height=\"5448\" width=\"4096\" title=\"itp58final3_513473\" \/>\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\t\t\t\t<a href=\"https:\/\/www2.whoi.edu\/site\/itp\/wp-content\/uploads\/sites\/92\/2019\/11\/itp58final4_513493.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\/11\/itp58final4_513493.jpg\" alt=\"Top: number of bad dissolved oxygen points removed, Middle: dissolved oxygen ratio adjustment, Bottom: number of filtered spikes.\" height=\"5440\" width=\"4057\" title=\"itp58final4_513493\" \/>\r\n\t\t\t\t<\/a>\r\n\t\tTop: number of bad dissolved oxygen points removed, Middle: dissolved oxygen ratio adjustment, Bottom: number of filtered spikes.\r\n","protected":false},"excerpt":{"rendered":"<p>ITP58 Data Processing The 950 profiles that were transmitted from the ITP were processed according to the procedures described in the\u00a0ITP Updated Data Processing Procedures.\u00a0 The processing parameters for this ITP are shown in the figures to the right. Large series of fouled salinity profiles were removed between profiles 51-63, 89-148, and 890-904.\u00a0 Dissolved oxygen&hellip;<\/p>\n","protected":false},"author":83,"featured_media":0,"parent":2580,"menu_order":2,"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\/2588"}],"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=2588"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2588\/revisions"}],"predecessor-version":[{"id":3622,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2588\/revisions\/3622"}],"up":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/pages\/2580"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/itp\/wp-json\/wp\/v2\/media?parent=2588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}