*2026/01/16 10:37:54.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 23:17:13.000 END TIME : UTC 2025/05/27 23:17:33.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 104 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.08 2 Depth metres 0.15 30.98 3 Temperature 'deg C (ITS90)' 10.542 13.154 4 Conductivity S/m 1.6636 3.56419 5 Conductance:Specific S/m 2.18146 4.92969 6 Salinity PSS-78 12.95 31.41 7 Speed:Sound m/s 1474.66 1490.75 8 Density kg/m^3 1009.358 1024.204 $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 : 160 LATITUDE : 49 38.90580 N ! (deg min) LONGITUDE : 126 26.39770 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_231713 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 104 104 MERGEHDR 1.3 2026/01/16 10:35:45 104 104 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 104 104 CALIB 12.1 2026/01/16 10:37:18 104 104 CLEAN 5.3 2026/01/16 10:37:54 104 104 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:42 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 13.130 1.66360 2.18146 12.95 1474.66 1009.358 0.45 0.45 13.154 1.71745 2.25071 13.40 1475.27 1009.701 0.75 0.76 13.137 1.89607 2.48586 14.93 1477.02 1010.883 1.05 1.06 13.065 2.13449 2.80373 17.02 1479.23 1012.506 1.35 1.36 13.086 2.33815 3.06959 18.80 1481.39 1013.870 1.65 1.66 13.093 2.47353 3.24671 19.99 1482.82 1014.788 1.95 1.96 13.002 2.64151 3.47547 21.53 1484.33 1015.996 2.25 2.26 12.855 2.86494 3.78414 23.64 1486.30 1017.645 2.55 2.56 12.794 3.04370 4.02668 25.31 1488.07 1018.947 2.85 2.86 12.669 3.22995 4.28727 27.11 1489.78 1020.365 3.15 3.16 12.420 3.28715 4.39228 27.83 1489.77 1020.965 3.45 3.46 12.216 3.35013 4.50091 28.57 1489.96 1021.580 3.75 3.76 12.156 3.38673 4.55743 28.96 1490.22 1021.896 4.05 4.06 12.085 3.43189 4.62703 29.45 1490.56 1022.285 4.35 4.36 11.969 3.45013 4.66626 29.71 1490.48 1022.513 4.65 4.66 11.877 3.45143 4.67960 29.80 1490.27 1022.597 4.95 4.96 11.809 3.45424 4.69215 29.88 1490.13 1022.674 5.25 5.26 11.754 3.45545 4.70073 29.94 1490.01 1022.728 5.55 5.56 11.700 3.45645 4.70907 29.99 1489.89 1022.781 5.85 5.86 11.637 3.46918 4.73457 30.16 1489.88 1022.928 6.15 6.16 11.620 3.48112 4.75300 30.29 1489.99 1023.032 6.45 6.45 11.601 3.49770 4.77819 30.47 1490.13 1023.174 6.75 6.75 11.575 3.51401 4.80384 30.65 1490.26 1023.318 7.05 7.05 11.570 3.52421 4.81851 30.75 1490.37 1023.401 7.35 7.35 11.569 3.53423 4.83222 30.85 1490.49 1023.478 7.65 7.65 11.570 3.54449 4.84611 30.95 1490.62 1023.555 7.95 7.95 11.565 3.54801 4.85161 30.98 1490.65 1023.587 8.25 8.25 11.561 3.54823 4.85251 30.99 1490.65 1023.594 8.55 8.55 11.557 3.54916 4.85424 31.00 1490.65 1023.605 8.85 8.84 11.554 3.55124 4.85751 31.02 1490.68 1023.625 9.15 9.14 11.553 3.55175 4.85839 31.03 1490.68 1023.631 9.45 9.44 11.552 3.55205 4.85894 31.03 1490.69 1023.635 9.75 9.74 11.550 3.55184 4.85889 31.03 1490.69 1023.636 10.05 10.04 11.550 3.55394 4.86175 31.05 1490.72 1023.653 10.35 10.34 11.549 3.55432 4.86238 31.06 1490.72 1023.658 10.65 10.64 11.548 3.55460 4.86290 31.06 1490.73 1023.662 10.95 10.94 11.547 3.55553 4.86430 31.07 1490.74 1023.671 11.25 11.23 11.544 3.55610 4.86547 31.08 1490.75 1023.679 11.55 11.53 11.537 3.55719 4.86797 31.10 1490.74 1023.695 11.85 11.83 11.523 3.55966 4.87317 31.13 1490.74 1023.727 12.15 12.13 11.500 3.56077 4.87781 31.16 1490.70 1023.755 12.45 12.43 11.485 3.56214 4.88164 31.19 1490.69 1023.779 12.75 12.73 11.475 3.56180 4.88257 31.19 1490.66 1023.787 13.05 13.03 11.472 3.56169 4.88280 31.19 1490.66 1023.789 13.35 13.33 11.466 3.56104 4.88265 31.19 1490.64 1023.790 13.65 13.62 11.458 3.55981 4.88212 31.19 1490.61 1023.790 13.95 13.92 11.446 3.56041 4.88444 31.20 1490.60 1023.805 14.25 14.22 11.435 3.56203 4.88823 31.23 1490.59 1023.828 14.55 14.52 11.425 3.56419 4.89248 31.26 1490.60 1023.854 14.85 14.82 11.412 3.56298 4.89254 31.26 1490.55 1023.856 15.15 15.12 11.398 3.56194 4.89309 31.26 1490.51 1023.862 15.45 15.42 11.381 3.56122 4.89432 31.26 1490.47 1023.872 15.75 15.71 11.361 3.56022 4.89564 31.27 1490.41 1023.882 16.05 16.01 11.347 3.55992 4.89710 31.28 1490.38 1023.893 16.35 16.31 11.333 3.55929 4.89811 31.29 1490.34 1023.901 16.65 16.61 11.318 3.55804 4.89850 31.29 1490.29 1023.906 16.95 16.91 11.304 3.55604 4.89758 31.28 1490.24 1023.903 17.25 17.21 11.296 3.55574 4.89818 31.28 1490.22 1023.908 17.55 17.51 11.284 3.55479 4.89856 31.28 1490.18 1023.913 17.85 17.81 11.271 3.55389 4.89901 31.28 1490.15 1023.918 18.15 18.10 11.263 3.55316 4.89914 31.28 1490.12 1023.920 18.45 18.40 11.251 3.55319 4.90087 31.30 1490.09 1023.932 18.75 18.70 11.236 3.55141 4.90044 31.29 1490.04 1023.933 19.05 19.00 11.226 3.55139 4.90172 31.30 1490.02 1023.942 19.35 19.30 11.219 3.55099 4.90204 31.30 1490.01 1023.945 19.65 19.60 11.214 3.55105 4.90284 31.30 1490.00 1023.952 19.95 19.90 11.211 3.55111 4.90339 31.31 1489.99 1023.956 20.25 20.19 11.210 3.55112 4.90352 31.31 1490.00 1023.958 20.55 20.49 11.208 3.55101 4.90363 31.31 1490.00 1023.960 20.85 20.79 11.204 3.55114 4.90434 31.31 1489.99 1023.966 21.15 21.09 11.200 3.55128 4.90503 31.32 1489.99 1023.971 21.45 21.39 11.192 3.55100 4.90575 31.32 1489.97 1023.977 21.75 21.69 11.184 3.55079 4.90665 31.33 1489.95 1023.984 22.05 21.99 11.176 3.55055 4.90735 31.33 1489.93 1023.990 22.35 22.29 11.161 3.54905 4.90723 31.33 1489.89 1023.992 22.65 22.58 11.140 3.54686 4.90706 31.33 1489.81 1023.994 22.95 22.88 11.119 3.54585 4.90861 31.33 1489.75 1024.006 23.25 23.18 11.093 3.54361 4.90906 31.33 1489.66 1024.012 23.55 23.48 11.062 3.54118 4.90990 31.34 1489.56 1024.020 23.85 23.78 11.028 3.53805 4.91019 31.33 1489.44 1024.026 24.15 24.08 11.000 3.53513 4.90984 31.33 1489.35 1024.028 24.45 24.38 10.974 3.53321 4.91085 31.33 1489.26 1024.037 24.75 24.67 10.942 3.53023 4.91105 31.33 1489.15 1024.042 25.05 24.97 10.921 3.52859 4.91162 31.33 1489.08 1024.048 25.35 25.27 10.894 3.52815 4.91474 31.35 1489.01 1024.069 25.65 25.57 10.865 3.52543 4.91492 31.35 1488.91 1024.074 25.95 25.87 10.841 3.52243 4.91400 31.34 1488.82 1024.072 26.25 26.17 10.807 3.52145 4.91721 31.36 1488.73 1024.094 26.55 26.47 10.779 3.51968 4.91866 31.36 1488.64 1024.105 26.85 26.76 10.762 3.51741 4.91776 31.36 1488.58 1024.103 27.15 27.06 10.743 3.51536 4.91751 31.35 1488.51 1024.104 27.45 27.36 10.719 3.51545 4.92103 31.37 1488.45 1024.127 27.75 27.66 10.708 3.51451 4.92124 31.37 1488.42 1024.130 28.05 27.96 10.708 3.51419 4.92072 31.37 1488.42 1024.129 28.35 28.26 10.707 3.51301 4.91915 31.36 1488.41 1024.121 28.65 28.56 10.696 3.51110 4.91808 31.35 1488.36 1024.117 28.95 28.85 10.680 3.51167 4.92110 31.37 1488.34 1024.137 29.25 29.15 10.666 3.51019 4.92088 31.37 1488.29 1024.138 29.55 29.45 10.645 3.50728 4.91975 31.36 1488.20 1024.135 29.85 29.75 10.613 3.50508 4.92113 31.36 1488.10 1024.146 30.15 30.05 10.575 3.50467 4.92581 31.39 1488.00 1024.176 30.45 30.35 10.558 3.50431 4.92763 31.40 1487.96 1024.188 30.75 30.65 10.542 3.50386 4.92918 31.41 1487.92 1024.199 31.08 30.98 10.543 3.50429 4.92969 31.41 1487.93 1024.204