*2026/01/16 09:57:52.31 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/09 00:57:46.000 END TIME : UTC 2024/07/09 00:58:02.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 81 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.29 2 Depth metres 0.15 24.19 3 Temperature 'deg C (ITS90)' 9.036 18.593 4 Conductivity S/m 3.16929 3.63574 5 Conductance:Specific S/m 3.63541 5.16076 6 Salinity PSS-78 22.86 32.86 7 Speed:Sound m/s 1483.95 1503.84 8 Density kg/m^3 1015.867 1025.534 $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 : 160 LATITUDE : 49 38.20130 N ! (deg min) LONGITUDE : 126 21.36060 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240709_005746 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 81 81 MERGEHDR 1.3 2026/01/16 09:53:55 81 81 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 81 81 CALIB 12.1 2026/01/16 09:56:51 81 81 CLEAN 5.3 2026/01/16 09:57:52 81 81 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 18.589 3.16929 3.63541 22.86 1503.82 1015.867 0.45 0.45 18.593 3.16981 3.63566 22.86 1503.84 1015.869 0.75 0.75 18.503 3.17531 3.64957 22.96 1503.68 1015.963 1.05 1.05 18.402 3.18183 3.66552 23.06 1503.50 1016.070 1.35 1.35 18.256 3.18990 3.68724 23.21 1503.24 1016.216 1.65 1.66 17.658 3.22598 3.78124 23.85 1502.15 1016.837 1.95 1.96 16.919 3.28981 3.92404 24.82 1500.98 1017.743 2.25 2.26 16.481 3.36408 4.05497 25.71 1500.65 1018.526 2.55 2.56 16.232 3.40096 4.12414 26.19 1500.42 1018.945 2.85 2.86 16.064 3.44677 4.19685 26.69 1500.47 1019.368 3.15 3.16 15.687 3.49929 4.30025 27.40 1500.10 1019.994 3.45 3.46 14.921 3.55538 4.45297 28.44 1498.85 1020.951 3.75 3.76 14.456 3.58754 4.54622 29.07 1498.08 1021.533 4.05 4.05 13.996 3.61530 4.63543 29.67 1497.27 1022.090 4.35 4.35 13.466 3.62399 4.71060 30.16 1496.10 1022.576 4.65 4.65 13.234 3.62601 4.74191 30.36 1495.57 1022.780 4.95 4.95 13.022 3.63128 4.77525 30.58 1495.12 1022.992 5.25 5.25 12.906 3.63206 4.79084 30.68 1494.85 1023.093 5.55 5.55 12.817 3.63241 4.80260 30.76 1494.65 1023.170 5.85 5.85 12.722 3.63471 4.81775 30.86 1494.45 1023.266 6.15 6.15 12.573 3.63574 4.83820 30.99 1494.10 1023.398 6.45 6.45 12.308 3.63507 4.87171 31.20 1493.45 1023.614 6.75 6.74 12.104 3.63441 4.89756 31.37 1492.96 1023.780 7.05 7.04 12.261 3.63271 4.87467 31.22 1493.32 1023.638 7.35 7.34 12.340 3.63069 4.86169 31.13 1493.50 1023.559 7.65 7.64 12.097 3.62664 4.88801 31.30 1492.86 1023.732 7.95 7.94 11.799 3.62651 4.92750 31.55 1492.14 1023.982 8.25 8.24 11.649 3.61803 4.93601 31.59 1491.68 1024.046 8.55 8.54 11.928 3.62047 4.90200 31.38 1492.39 1023.831 8.85 8.84 11.755 3.61812 4.92192 31.50 1491.95 1023.960 9.15 9.13 11.559 3.61216 4.94021 31.61 1491.40 1024.081 9.45 9.43 11.277 3.60725 4.97175 31.81 1490.65 1024.283 9.75 9.73 10.993 3.60323 5.00539 32.01 1489.91 1024.495 10.05 10.03 10.919 3.59916 5.01009 32.04 1489.68 1024.529 10.35 10.33 10.843 3.59819 5.01944 32.09 1489.48 1024.588 10.65 10.63 10.748 3.59580 5.02942 32.15 1489.22 1024.652 10.95 10.93 10.684 3.59063 5.03117 32.16 1489.01 1024.668 11.25 11.22 10.693 3.58854 5.02699 32.13 1489.01 1024.646 11.55 11.52 10.721 3.59301 5.02922 32.15 1489.14 1024.657 11.85 11.82 10.696 3.59303 5.03283 32.17 1489.08 1024.680 12.15 12.12 10.701 3.59202 5.03065 32.16 1489.09 1024.669 12.45 12.42 10.625 3.58804 5.03590 32.18 1488.85 1024.705 12.75 12.72 10.682 3.58952 5.02995 32.15 1489.02 1024.669 13.05 13.01 10.705 3.59104 5.02870 32.14 1489.10 1024.662 13.35 13.31 10.673 3.59020 5.03212 32.16 1489.01 1024.684 13.65 13.61 10.626 3.58895 5.03695 32.19 1488.89 1024.716 13.95 13.91 10.568 3.58644 5.04169 32.22 1488.71 1024.748 14.25 14.21 10.363 3.57399 5.05330 32.27 1488.05 1024.828 14.55 14.51 10.252 3.56686 5.05902 32.30 1487.70 1024.869 14.85 14.80 10.195 3.56480 5.06434 32.33 1487.53 1024.904 15.15 15.10 10.253 3.56786 5.06036 32.31 1487.72 1024.879 15.45 15.40 10.241 3.56911 5.06382 32.33 1487.71 1024.900 15.75 15.70 10.211 3.56748 5.06589 32.34 1487.62 1024.915 16.05 16.00 10.218 3.56480 5.06102 32.31 1487.61 1024.889 16.35 16.30 10.145 3.56099 5.06619 32.34 1487.38 1024.923 16.65 16.59 10.127 3.56342 5.07217 32.38 1487.37 1024.959 16.95 16.89 10.157 3.56266 5.06682 32.34 1487.44 1024.929 17.25 17.19 10.170 3.56624 5.06997 32.37 1487.52 1024.946 17.55 17.49 10.216 3.56768 5.06541 32.34 1487.66 1024.919 17.85 17.79 10.216 3.56474 5.06129 32.31 1487.63 1024.898 18.15 18.09 10.139 3.55360 5.05644 32.27 1487.31 1024.877 18.45 18.39 10.008 3.55412 5.07618 32.39 1486.98 1024.996 18.75 18.68 9.960 3.55318 5.08183 32.42 1486.86 1025.032 19.05 18.98 9.960 3.55806 5.08878 32.47 1486.92 1025.072 19.35 19.28 9.932 3.55763 5.09217 32.49 1486.85 1025.093 19.65 19.58 9.819 3.56252 5.11579 32.64 1486.63 1025.232 19.95 19.88 9.799 3.54830 5.09834 32.52 1486.41 1025.138 20.25 20.17 9.687 3.53544 5.09621 32.49 1485.97 1025.134 20.55 20.47 9.543 3.52848 5.10732 32.55 1485.52 1025.204 20.85 20.77 9.391 3.52378 5.12314 32.64 1485.08 1025.301 21.15 21.07 9.310 3.51907 5.12838 32.66 1484.82 1025.335 21.45 21.37 9.264 3.51569 5.13032 32.67 1484.66 1025.349 21.75 21.67 9.294 3.51890 5.13048 32.67 1484.78 1025.350 22.05 21.96 9.440 3.52607 5.11920 32.61 1485.25 1025.282 22.35 22.26 9.297 3.51559 5.12520 32.64 1484.76 1025.323 22.65 22.56 9.223 3.51295 5.13250 32.68 1484.54 1025.368 22.95 22.86 9.157 3.50510 5.13079 32.66 1484.28 1025.363 23.25 23.16 9.036 3.50379 5.14720 32.75 1483.95 1025.460 23.55 23.46 9.081 3.51769 5.16076 32.86 1484.25 1025.534 23.85 23.75 9.460 3.52913 5.12067 32.63 1485.37 1025.296 24.29 24.19 9.457 3.52517 5.11528 32.59 1485.32 1025.269