*2026/01/16 10:37:56.06 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 17:37:22.000 END TIME : UTC 2025/06/24 17:37:45.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 119 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.58 2 Depth metres 0.15 35.5 3 Temperature 'deg C (ITS90)' 12.856 13.703 4 Conductivity S/m 3.34174 3.44067 5 Conductance:Specific S/m 4.32196 4.54434 6 Salinity PSS-78 27.43 28.92 7 Speed:Sound m/s 1492.51 1493.84 8 Density kg/m^3 1020.415 1021.872 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 182 LATITUDE : 49 13.90800 N ! (deg min) LONGITUDE : 125 46.43200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_173722 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 119 119 MERGEHDR 1.3 2026/01/16 10:35:46 119 119 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:46 119 119 CALIB 12.1 2026/01/16 10:37:19 119 119 CLEAN 5.3 2026/01/16 10:37:56 119 119 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 10:36:46 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 10:37:42 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 13.464 3.36696 4.37673 27.80 1493.25 1020.736 0.45 0.45 13.586 3.34482 4.33422 27.51 1493.32 1020.491 0.75 0.75 13.660 3.34174 4.32196 27.43 1493.48 1020.415 1.05 1.05 13.703 3.36472 4.34687 27.61 1493.84 1020.545 1.35 1.35 13.605 3.37340 4.36909 27.76 1493.69 1020.681 1.65 1.65 13.448 3.37844 4.39350 27.92 1493.36 1020.836 1.95 1.95 13.329 3.38229 4.41214 28.04 1493.11 1020.954 2.25 2.25 13.300 3.38964 4.42511 28.13 1493.12 1021.030 2.55 2.55 13.254 3.39112 4.43237 28.18 1493.02 1021.077 2.85 2.85 13.196 3.39694 4.44667 28.27 1492.95 1021.163 3.15 3.15 13.141 3.40012 4.45734 28.34 1492.85 1021.230 3.45 3.44 13.088 3.40264 4.46676 28.40 1492.75 1021.289 3.75 3.74 13.028 3.40418 4.47594 28.46 1492.62 1021.348 4.05 4.04 12.988 3.40696 4.48428 28.52 1492.55 1021.400 4.35 4.34 12.965 3.40957 4.49041 28.56 1492.53 1021.437 4.65 4.64 12.955 3.41024 4.49249 28.57 1492.52 1021.451 4.95 4.94 12.946 3.41138 4.49502 28.59 1492.51 1021.467 5.25 5.24 12.935 3.41333 4.49896 28.62 1492.51 1021.492 5.55 5.54 12.927 3.41455 4.50149 28.64 1492.51 1021.507 5.85 5.84 12.922 3.41811 4.50679 28.67 1492.54 1021.538 6.15 6.14 12.920 3.41918 4.50845 28.68 1492.55 1021.549 6.45 6.44 12.912 3.42355 4.51508 28.73 1492.58 1021.587 6.75 6.74 12.906 3.42342 4.51571 28.73 1492.57 1021.593 7.05 7.04 12.902 3.42524 4.51856 28.75 1492.59 1021.610 7.35 7.34 12.900 3.42511 4.51864 28.75 1492.58 1021.612 7.65 7.64 12.897 3.42562 4.51968 28.76 1492.59 1021.619 7.95 7.94 12.893 3.42498 4.51928 28.76 1492.58 1021.619 8.25 8.23 12.892 3.42538 4.51996 28.76 1492.58 1021.624 8.55 8.53 12.889 3.42618 4.52129 28.77 1492.59 1021.633 8.85 8.83 12.887 3.42565 4.52087 28.77 1492.58 1021.632 9.15 9.13 12.887 3.42550 4.52071 28.77 1492.58 1021.633 9.45 9.43 12.886 3.42601 4.52149 28.77 1492.59 1021.638 9.75 9.73 12.884 3.42551 4.52107 28.77 1492.59 1021.637 10.05 10.03 12.883 3.42563 4.52132 28.77 1492.59 1021.640 10.35 10.33 12.882 3.42635 4.52244 28.78 1492.60 1021.648 10.65 10.63 12.883 3.42583 4.52164 28.77 1492.60 1021.644 10.95 10.93 12.881 3.42566 4.52162 28.77 1492.60 1021.646 11.25 11.23 12.879 3.42561 4.52177 28.77 1492.60 1021.648 11.55 11.53 12.879 3.42680 4.52333 28.78 1492.62 1021.658 11.85 11.83 12.878 3.42805 4.52508 28.80 1492.64 1021.669 12.15 12.13 12.876 3.42841 4.52583 28.80 1492.64 1021.674 12.45 12.43 12.876 3.42953 4.52734 28.81 1492.65 1021.684 12.75 12.72 12.875 3.43002 4.52812 28.82 1492.66 1021.690 13.05 13.02 12.874 3.42983 4.52798 28.82 1492.66 1021.690 13.35 13.32 12.874 3.43034 4.52866 28.82 1492.67 1021.695 13.65 13.62 12.873 3.42983 4.52806 28.82 1492.67 1021.693 13.95 13.92 12.873 3.43098 4.52958 28.83 1492.69 1021.703 14.25 14.22 12.873 3.43106 4.52973 28.83 1492.69 1021.705 14.55 14.52 12.871 3.43149 4.53045 28.83 1492.70 1021.710 14.85 14.82 12.871 3.43148 4.53045 28.83 1492.70 1021.712 15.15 15.12 12.872 3.43191 4.53098 28.84 1492.71 1021.716 15.45 15.42 12.871 3.43254 4.53186 28.84 1492.72 1021.722 15.75 15.72 12.870 3.43199 4.53127 28.84 1492.72 1021.720 16.05 16.02 12.871 3.43217 4.53141 28.84 1492.73 1021.722 16.35 16.32 12.869 3.43234 4.53184 28.84 1492.73 1021.726 16.65 16.62 12.868 3.43229 4.53188 28.84 1492.73 1021.727 16.95 16.92 12.868 3.43192 4.53139 28.84 1492.73 1021.726 17.25 17.21 12.868 3.43139 4.53078 28.83 1492.73 1021.724 17.55 17.51 12.868 3.43171 4.53113 28.84 1492.74 1021.727 17.85 17.81 12.868 3.43147 4.53084 28.83 1492.74 1021.727 18.15 18.11 12.869 3.43179 4.53115 28.84 1492.75 1021.730 18.45 18.41 12.869 3.43131 4.53048 28.83 1492.75 1021.727 18.75 18.71 12.868 3.43182 4.53129 28.84 1492.76 1021.733 19.05 19.01 12.866 3.43200 4.53174 28.84 1492.76 1021.737 19.35 19.31 12.866 3.43258 4.53253 28.84 1492.77 1021.743 19.65 19.61 12.868 3.43209 4.53170 28.84 1492.78 1021.739 19.95 19.91 12.867 3.43342 4.53351 28.85 1492.80 1021.750 20.25 20.21 12.867 3.43296 4.53292 28.85 1492.80 1021.748 20.55 20.51 12.867 3.43368 4.53392 28.85 1492.81 1021.755 20.85 20.81 12.865 3.43389 4.53434 28.86 1492.81 1021.759 21.15 21.11 12.864 3.43441 4.53514 28.86 1492.82 1021.765 21.45 21.40 12.865 3.43522 4.53614 28.87 1492.83 1021.771 21.75 21.70 12.864 3.43458 4.53547 28.86 1492.83 1021.769 22.05 22.00 12.863 3.43555 4.53684 28.87 1492.84 1021.778 22.35 22.30 12.864 3.43549 4.53667 28.87 1492.85 1021.778 22.65 22.60 12.863 3.43547 4.53672 28.87 1492.85 1021.780 22.95 22.90 12.862 3.43550 4.53689 28.87 1492.85 1021.782 23.25 23.20 12.862 3.43593 4.53741 28.88 1492.86 1021.786 23.55 23.50 12.861 3.43630 4.53808 28.88 1492.87 1021.791 23.85 23.80 12.860 3.43612 4.53789 28.88 1492.87 1021.792 24.15 24.10 12.860 3.43585 4.53758 28.88 1492.87 1021.791 24.45 24.40 12.859 3.43625 4.53822 28.88 1492.88 1021.796 24.75 24.70 12.858 3.43658 4.53878 28.89 1492.89 1021.801 25.05 25.00 12.858 3.43653 4.53876 28.89 1492.89 1021.802 25.35 25.30 12.859 3.43683 4.53898 28.89 1492.90 1021.804 25.65 25.59 12.858 3.43709 4.53949 28.89 1492.90 1021.808 25.95 25.89 12.858 3.43738 4.53979 28.89 1492.91 1021.811 26.25 26.19 12.858 3.43736 4.53975 28.89 1492.92 1021.812 26.55 26.49 12.859 3.43758 4.54004 28.89 1492.93 1021.815 26.85 26.79 12.858 3.43740 4.53982 28.89 1492.93 1021.815 27.15 27.09 12.857 3.43735 4.53991 28.89 1492.93 1021.817 27.45 27.39 12.857 3.43802 4.54080 28.90 1492.94 1021.823 27.75 27.69 12.858 3.43824 4.54098 28.90 1492.95 1021.825 28.05 27.99 12.859 3.43804 4.54060 28.90 1492.96 1021.824 28.35 28.29 12.858 3.43838 4.54116 28.90 1492.96 1021.829 28.65 28.59 12.859 3.43798 4.54051 28.90 1492.97 1021.826 28.95 28.89 12.858 3.43844 4.54126 28.90 1492.97 1021.832 29.25 29.19 12.858 3.43832 4.54112 28.90 1492.98 1021.832 29.55 29.49 12.858 3.43836 4.54118 28.90 1492.98 1021.834 29.85 29.78 12.857 3.43817 4.54101 28.90 1492.98 1021.834 30.15 30.08 12.859 3.43820 4.54083 28.90 1492.99 1021.835 30.45 30.38 12.858 3.43840 4.54122 28.90 1493.00 1021.838 30.75 30.68 12.856 3.43795 4.54077 28.90 1492.99 1021.837 31.05 30.98 12.856 3.43842 4.54145 28.90 1493.00 1021.842 31.35 31.28 12.856 3.43857 4.54162 28.90 1493.01 1021.844 31.65 31.58 12.857 3.43916 4.54232 28.91 1493.02 1021.849 31.95 31.88 12.858 3.43857 4.54138 28.90 1493.02 1021.845 32.25 32.18 12.858 3.43946 4.54255 28.91 1493.04 1021.853 32.55 32.48 12.858 3.43900 4.54196 28.91 1493.04 1021.851 32.85 32.78 12.858 3.43925 4.54231 28.91 1493.04 1021.854 33.15 33.08 12.856 3.43916 4.54243 28.91 1493.04 1021.856 33.45 33.38 12.857 3.43922 4.54236 28.91 1493.05 1021.857 33.75 33.68 12.857 3.43966 4.54297 28.91 1493.06 1021.862 34.05 33.97 12.858 3.43915 4.54217 28.91 1493.06 1021.858 34.35 34.27 12.857 3.44067 4.54434 28.92 1493.08 1021.872 34.65 34.57 12.859 3.43922 4.54213 28.91 1493.08 1021.861 34.95 34.87 12.857 3.43991 4.54327 28.91 1493.08 1021.868 35.25 35.17 12.858 3.43934 4.54249 28.91 1493.08 1021.865 35.58 35.50 12.861 3.44038 4.54341 28.91 1493.11 1021.871