*2026/01/16 09:47:03.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/21 16:57:18.000 END TIME : UTC 2023/11/21 16:57:25.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 38 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 11.21 2 Depth metres 0.15 11.19 3 Temperature 'deg C (ITS90)' 11.144 12.738 4 Conductivity S/m 2.64994 3.62427 5 Conductance:Specific S/m 3.66576 4.80194 6 Salinity PSS-78 22.71 30.74 7 Speed:Sound m/s 1479.12 1494.45 8 Density kg/m^3 1017.202 1023.199 $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 : 63 LATITUDE : 49 37.95700 N ! (deg min) LONGITUDE : 126 4.12470 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231121_165718 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 38 38 MERGEHDR 1.3 2026/01/15 13:41:47 38 38 HDREDIT2 3.2 2026/01/15 14:00:55 ? ? REMOVECH 8.2 2026/01/15 14:01:18 38 38 CALIB 12.1 2026/01/16 09:46:05 38 38 CLEAN 5.3 2026/01/16 09:47:03 38 38 $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 09:46:05 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 11.144 2.64994 3.66576 22.71 1479.12 1017.202 0.45 0.45 11.281 2.92994 4.03784 25.27 1482.68 1019.167 0.75 0.75 11.376 2.96316 4.07302 25.52 1483.32 1019.347 1.05 1.05 11.403 2.98636 4.10185 25.72 1483.67 1019.500 1.35 1.35 11.348 3.05898 4.20785 26.45 1484.35 1020.076 1.65 1.65 11.391 3.05774 4.20118 26.41 1484.46 1020.037 1.95 1.95 11.575 3.08985 4.22404 26.58 1485.32 1020.143 2.25 2.25 11.642 3.14866 4.29651 27.09 1486.17 1020.528 2.55 2.55 11.743 3.23691 4.40475 27.86 1487.45 1021.105 2.85 2.85 11.939 3.28732 4.44966 28.19 1488.53 1021.329 3.15 3.15 12.022 3.36220 4.54084 28.84 1489.60 1021.818 3.45 3.45 12.082 3.42952 4.62419 29.43 1490.52 1022.267 3.75 3.75 12.198 3.43884 4.62240 29.43 1490.92 1022.246 4.05 4.05 12.300 3.44850 4.62261 29.44 1491.29 1022.237 4.35 4.35 12.386 3.48485 4.66062 29.71 1491.92 1022.436 4.65 4.65 12.449 3.53140 4.71498 30.10 1492.60 1022.728 4.95 4.95 12.519 3.56036 4.74479 30.32 1493.10 1022.885 5.25 5.25 12.588 3.57407 4.75424 30.39 1493.43 1022.930 5.55 5.55 12.624 3.58095 4.75886 30.43 1493.60 1022.953 5.85 5.85 12.641 3.58672 4.76435 30.47 1493.71 1022.982 6.15 6.15 12.653 3.58992 4.76712 30.49 1493.78 1022.997 6.45 6.45 12.662 3.59477 4.77245 30.53 1493.86 1023.027 6.75 6.75 12.667 3.59767 4.77560 30.55 1493.91 1023.045 7.05 7.05 12.668 3.60036 4.77913 30.58 1493.95 1023.065 7.35 7.35 12.667 3.60154 4.78071 30.59 1493.97 1023.075 7.65 7.65 12.670 3.60192 4.78086 30.59 1493.98 1023.077 7.95 7.94 12.672 3.60421 4.78368 30.61 1494.02 1023.094 8.25 8.24 12.674 3.60664 4.78660 30.63 1494.06 1023.111 8.55 8.54 12.667 3.60843 4.78992 30.65 1494.06 1023.131 8.85 8.84 12.663 3.60904 4.79129 30.66 1494.06 1023.140 9.15 9.14 12.690 3.61185 4.79149 30.67 1494.17 1023.139 9.45 9.44 12.703 3.61470 4.79359 30.68 1494.24 1023.151 9.75 9.74 12.720 3.61847 4.79652 30.71 1494.32 1023.166 10.05 10.04 12.722 3.61992 4.79816 30.72 1494.35 1023.176 10.35 10.34 12.728 3.62213 4.80033 30.73 1494.39 1023.189 10.65 10.64 12.737 3.62231 4.79936 30.73 1494.42 1023.183 10.95 10.94 12.738 3.62427 4.80194 30.74 1494.45 1023.199 11.21 11.19 12.738 3.62362 4.80102 30.74 1494.45 1023.195