*2026/01/16 09:57:48.03 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 21:46:18.000 END TIME : UTC 2024/02/15 21:46:32.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 73 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.73 2 Depth metres 0.15 21.68 3 Temperature 'deg C (ITS90)' 8.456 9.83 4 Conductivity S/m 2.48054 3.28401 5 Conductance:Specific S/m 3.70498 4.71483 6 Salinity PSS-78 22.75 29.82 7 Speed:Sound m/s 1469.11 1483.26 8 Density kg/m^3 1017.601 1023.034 $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 : 2024-087 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 59.65580 N ! (deg min) LONGITUDE : 125 19.79770 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_214618 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 73 73 MERGEHDR 1.3 2026/01/16 09:53:47 73 73 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 73 73 CALIB 12.1 2026/01/16 09:56:46 73 73 CLEAN 5.3 2026/01/16 09:57:48 73 73 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 09:57:46 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 8.456 2.48054 3.70722 22.75 1469.11 1017.617 0.45 0.45 8.573 2.48774 3.70498 22.75 1469.57 1017.601 0.75 0.75 8.750 2.57534 3.81536 23.51 1471.19 1018.176 1.05 1.05 8.810 2.61241 3.86336 23.84 1471.83 1018.428 1.35 1.35 8.839 2.62210 3.87432 23.92 1472.04 1018.485 1.65 1.65 8.930 2.63378 3.88124 23.98 1472.46 1018.519 1.95 1.95 9.045 2.67717 3.93186 24.33 1473.33 1018.782 2.25 2.25 9.092 2.71553 3.98260 24.68 1473.95 1019.050 2.55 2.55 9.145 2.76226 4.04493 25.11 1474.67 1019.380 2.85 2.85 9.271 2.85525 4.16570 25.95 1476.18 1020.020 3.15 3.15 9.407 2.96732 4.31212 26.98 1477.94 1020.799 3.45 3.45 9.533 2.99199 4.33204 27.13 1478.60 1020.900 3.75 3.75 9.615 3.00443 4.33972 27.19 1478.99 1020.937 4.05 4.05 9.674 3.03030 4.36973 27.40 1479.47 1021.097 4.35 4.35 9.721 3.06341 4.41148 27.70 1480.00 1021.321 4.65 4.65 9.753 3.08643 4.44052 27.90 1480.38 1021.477 4.95 4.95 9.760 3.10397 4.46491 28.07 1480.61 1021.610 5.25 5.25 9.760 3.11292 4.47769 28.16 1480.73 1021.680 5.55 5.55 9.756 3.12159 4.49071 28.25 1480.83 1021.752 5.85 5.85 9.747 3.12530 4.49720 28.30 1480.85 1021.789 6.15 6.15 9.728 3.12711 4.50230 28.33 1480.83 1021.819 6.45 6.45 9.703 3.12641 4.50456 28.34 1480.75 1021.835 6.75 6.74 9.678 3.12595 4.50707 28.36 1480.69 1021.851 7.05 7.04 9.662 3.12721 4.51104 28.38 1480.66 1021.875 7.35 7.34 9.653 3.13821 4.52798 28.50 1480.78 1021.969 7.65 7.64 9.667 3.14695 4.53880 28.58 1480.93 1022.028 7.95 7.94 9.683 3.15765 4.55213 28.67 1481.11 1022.100 8.25 8.24 9.704 3.17415 4.57323 28.82 1481.37 1022.215 8.55 8.54 9.728 3.17861 4.57645 28.84 1481.49 1022.232 8.85 8.84 9.743 3.18002 4.57654 28.85 1481.55 1022.233 9.15 9.14 9.744 3.18132 4.57816 28.86 1481.58 1022.243 9.45 9.44 9.745 3.18148 4.57831 28.86 1481.59 1022.245 9.75 9.74 9.748 3.18219 4.57891 28.86 1481.61 1022.249 10.05 10.04 9.753 3.18515 4.58252 28.89 1481.66 1022.270 10.35 10.34 9.757 3.18762 4.58558 28.91 1481.71 1022.288 10.65 10.63 9.765 3.18890 4.58638 28.92 1481.75 1022.293 10.95 10.93 9.771 3.19022 4.58749 28.93 1481.79 1022.300 11.25 11.23 9.776 3.19195 4.58925 28.94 1481.83 1022.310 11.55 11.53 9.786 3.19830 4.59712 28.99 1481.94 1022.354 11.85 11.83 9.793 3.20537 4.60629 29.06 1482.05 1022.404 12.15 12.13 9.805 3.21611 4.62013 29.16 1482.22 1022.480 12.45 12.43 9.798 3.22408 4.63261 29.24 1482.30 1022.550 12.75 12.73 9.783 3.22487 4.63577 29.26 1482.27 1022.569 13.05 13.03 9.772 3.22546 4.63802 29.28 1482.25 1022.584 13.35 13.33 9.767 3.22712 4.64102 29.30 1482.27 1022.602 13.65 13.63 9.764 3.22907 4.64433 29.32 1482.29 1022.621 13.95 13.92 9.760 3.23047 4.64682 29.34 1482.30 1022.636 14.25 14.22 9.764 3.23277 4.64965 29.36 1482.34 1022.653 14.55 14.52 9.769 3.23354 4.65009 29.36 1482.37 1022.656 14.85 14.82 9.769 3.23446 4.65139 29.37 1482.38 1022.664 15.15 15.12 9.760 3.23445 4.65258 29.38 1482.37 1022.673 15.45 15.42 9.754 3.23698 4.65694 29.41 1482.39 1022.698 15.75 15.72 9.750 3.23981 4.66153 29.44 1482.42 1022.725 16.05 16.02 9.747 3.24401 4.66810 29.48 1482.46 1022.762 16.35 16.32 9.746 3.24681 4.67222 29.51 1482.50 1022.786 16.65 16.62 9.751 3.24891 4.67460 29.53 1482.54 1022.800 16.95 16.91 9.756 3.25042 4.67611 29.54 1482.58 1022.809 17.25 17.21 9.758 3.25164 4.67754 29.55 1482.60 1022.818 17.55 17.51 9.760 3.25495 4.68199 29.58 1482.66 1022.843 17.85 17.81 9.760 3.25667 4.68452 29.60 1482.68 1022.858 18.15 18.11 9.764 3.25720 4.68476 29.60 1482.70 1022.861 18.45 18.41 9.772 3.25989 4.68748 29.62 1482.76 1022.876 18.75 18.71 9.779 3.26309 4.69121 29.65 1482.82 1022.897 19.05 19.01 9.782 3.26543 4.69408 29.67 1482.87 1022.914 19.35 19.31 9.786 3.26643 4.69510 29.68 1482.89 1022.921 19.65 19.61 9.785 3.26760 4.69685 29.69 1482.91 1022.932 19.95 19.90 9.785 3.26922 4.69921 29.70 1482.93 1022.946 20.25 20.20 9.787 3.27036 4.70050 29.71 1482.96 1022.954 20.55 20.50 9.792 3.27343 4.70430 29.74 1483.01 1022.976 20.85 20.80 9.802 3.27983 4.71209 29.80 1483.12 1023.019 21.15 21.10 9.816 3.28306 4.71483 29.82 1483.21 1023.034 21.45 21.40 9.827 3.28390 4.71463 29.82 1483.25 1023.034 21.73 21.68 9.830 3.28401 4.71434 29.81 1483.26 1023.033