*2026/01/16 09:47:02.84 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/08 22:55:25.000 END TIME : UTC 2023/11/08 22:55:32.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 40 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 11.96 2 Depth metres 0.15 11.94 3 Temperature 'deg C (ITS90)' 11.5 12.958 4 Conductivity S/m 1.19848 3.62779 5 Conductance:Specific S/m 1.64176 4.89597 6 Salinity PSS-78 9.48 31.32 7 Speed:Sound m/s 1464.61 1494.36 8 Density kg/m^3 1006.915 1023.825 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 54 LATITUDE : 48 57.45140 N ! (deg min) LONGITUDE : 125 2.12890 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231108_225525 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 40 40 MERGEHDR 1.3 2026/01/15 13:41:47 40 40 HDREDIT2 3.2 2026/01/15 14:00:55 ? ? REMOVECH 8.2 2026/01/15 14:01:18 40 40 CALIB 12.1 2026/01/16 09:46:04 40 40 CLEAN 5.3 2026/01/16 09:47:02 40 40 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:55 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:04 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 09:47:01 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 11.500 1.19848 1.64176 9.48 1464.61 1006.915 0.45 0.46 11.619 1.34916 1.84217 10.74 1466.57 1007.876 0.75 0.76 11.782 1.60132 2.17675 12.88 1469.72 1009.506 1.05 1.06 11.954 1.90871 2.58256 15.52 1473.49 1011.520 1.35 1.36 12.144 2.19974 2.96107 18.02 1477.16 1013.429 1.65 1.66 12.294 2.66207 3.56905 22.13 1482.56 1016.574 1.95 1.97 12.462 2.78128 3.71214 23.12 1484.32 1017.311 2.25 2.27 12.511 3.01455 4.01820 25.23 1487.00 1018.935 2.55 2.57 12.543 3.16230 4.21162 26.57 1488.70 1019.971 2.85 2.87 12.674 3.26540 4.33372 27.44 1490.18 1020.616 3.15 3.17 12.786 3.32648 4.40172 27.92 1491.15 1020.972 3.45 3.46 12.838 3.41174 4.50834 28.68 1492.22 1021.547 3.75 3.76 12.901 3.50515 4.62407 29.50 1493.41 1022.172 4.05 4.06 12.946 3.55526 4.68461 29.93 1494.08 1022.500 4.35 4.36 12.958 3.57329 4.70690 30.09 1494.31 1022.622 4.65 4.66 12.947 3.57910 4.71587 30.15 1494.36 1022.674 4.95 4.96 12.930 3.58193 4.72174 30.19 1494.35 1022.709 5.25 5.26 12.900 3.58349 4.72762 30.23 1494.30 1022.747 5.55 5.56 12.860 3.58625 4.73616 30.29 1494.24 1022.799 5.85 5.86 12.809 3.58662 4.74311 30.33 1494.12 1022.845 6.15 6.16 12.757 3.58803 4.75142 30.39 1494.02 1022.898 6.45 6.46 12.712 3.59306 4.76381 30.47 1493.97 1022.973 6.75 6.75 12.652 3.60416 4.78609 30.63 1493.95 1023.104 7.05 7.05 12.632 3.61379 4.80148 30.73 1494.01 1023.192 7.35 7.35 12.590 3.62012 4.81525 30.83 1493.99 1023.274 7.65 7.65 12.507 3.62779 4.83610 30.97 1493.88 1023.400 7.95 7.95 12.410 3.62567 4.84580 31.03 1493.62 1023.466 8.25 8.25 12.331 3.61902 4.84720 31.03 1493.36 1023.484 8.55 8.55 12.226 3.61876 4.86055 31.11 1493.10 1023.570 8.85 8.85 12.157 3.61733 4.86767 31.16 1492.92 1023.619 9.15 9.14 12.109 3.61388 4.86926 31.16 1492.77 1023.634 9.45 9.44 12.048 3.61010 4.87220 31.18 1492.58 1023.658 9.75 9.74 11.972 3.60836 4.87980 31.23 1492.38 1023.709 10.05 10.04 11.932 3.60898 4.88596 31.27 1492.30 1023.748 10.35 10.34 11.895 3.60917 4.89120 31.30 1492.21 1023.782 10.65 10.64 11.863 3.60798 4.89373 31.31 1492.12 1023.801 10.95 10.94 11.832 3.60448 4.89317 31.31 1492.01 1023.802 11.25 11.24 11.819 3.60370 4.89373 31.31 1491.98 1023.808 11.55 11.53 11.811 3.60355 4.89473 31.31 1491.96 1023.816 11.96 11.94 11.800 3.60346 4.89597 31.32 1491.94 1023.825