*2026/01/16 10:37:47.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 19:01:43.000 END TIME : UTC 2025/02/19 19:02:05.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 114 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.95 2 Depth metres 0.15 33.79 3 Temperature 'deg C (ITS90)' 10.049 11.698 4 Conductivity S/m 3.1612 3.6078 5 Conductance:Specific S/m 4.50967 4.99082 6 Salinity PSS-78 28.42 31.84 7 Speed:Sound m/s 1482.02 1491.53 8 Density kg/m^3 1021.812 1024.554 $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 : 51 LATITUDE : 49 47.05660 N ! (deg min) LONGITUDE : 126 27.20850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_190143 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 114 114 MERGEHDR 1.3 2026/01/16 10:35:39 114 114 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 114 114 CALIB 12.1 2026/01/16 10:37:11 114 114 CLEAN 5.3 2026/01/16 10:37:47 114 114 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:11 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 10.049 3.16120 4.50967 28.42 1482.02 1021.812 0.45 0.45 10.461 3.24309 4.57275 28.90 1484.11 1022.126 0.75 0.75 10.571 3.36332 4.72760 30.00 1485.83 1022.964 1.05 1.05 10.587 3.40302 4.78122 30.38 1486.35 1023.257 1.35 1.35 10.708 3.46106 4.84640 30.86 1487.36 1023.607 1.65 1.64 10.814 3.49228 4.87562 31.07 1488.01 1023.760 1.95 1.94 10.935 3.49774 4.86674 31.03 1488.38 1023.703 2.25 2.24 11.137 3.51623 4.86516 31.04 1489.12 1023.678 2.55 2.54 11.288 3.55127 4.89325 31.25 1489.91 1023.820 2.85 2.84 11.437 3.58122 4.91423 31.42 1490.64 1023.923 3.15 3.14 11.583 3.59182 4.90910 31.40 1491.13 1023.882 3.45 3.44 11.698 3.59988 4.90476 31.38 1491.51 1023.848 3.75 3.74 11.667 3.60780 4.91973 31.48 1491.53 1023.935 4.05 4.03 11.614 3.60521 4.92332 31.50 1491.37 1023.961 4.35 4.33 11.541 3.59342 4.91702 31.45 1491.06 1023.935 4.65 4.63 11.423 3.57290 4.90469 31.35 1490.54 1023.879 4.95 4.93 11.313 3.55245 4.89143 31.24 1490.03 1023.818 5.25 5.23 11.216 3.54097 4.88873 31.21 1489.65 1023.813 5.55 5.53 11.114 3.53178 4.88976 31.21 1489.29 1023.829 5.85 5.83 11.027 3.53001 4.89915 31.26 1489.06 1023.890 6.15 6.12 11.017 3.54973 4.92790 31.47 1489.27 1024.050 6.45 6.42 10.982 3.54526 4.92644 31.45 1489.14 1024.047 6.75 6.72 10.927 3.53655 4.92186 31.41 1488.90 1024.027 7.05 7.02 10.829 3.52771 4.92299 31.41 1488.55 1024.043 7.35 7.32 10.801 3.52185 4.91868 31.38 1488.42 1024.023 7.65 7.62 10.773 3.51647 4.91502 31.35 1488.29 1024.006 7.95 7.92 10.780 3.51674 4.91440 31.34 1488.31 1024.003 8.25 8.21 10.817 3.52608 4.92241 31.40 1488.52 1024.046 8.55 8.51 10.916 3.53535 4.92175 31.41 1488.89 1024.035 8.85 8.81 11.058 3.56188 4.93908 31.55 1489.56 1024.120 9.15 9.11 11.089 3.56819 4.94364 31.58 1489.72 1024.144 9.45 9.41 11.107 3.56823 4.94117 31.57 1489.77 1024.130 9.75 9.71 11.115 3.56775 4.93944 31.56 1489.79 1024.121 10.05 10.01 11.102 3.56473 4.93704 31.54 1489.73 1024.110 10.35 10.30 11.077 3.55840 4.93172 31.50 1489.59 1024.084 10.65 10.60 11.071 3.55632 4.92959 31.48 1489.56 1024.074 10.95 10.90 11.056 3.55623 4.93150 31.49 1489.53 1024.087 11.25 11.20 11.038 3.55620 4.93398 31.51 1489.48 1024.104 11.55 11.50 11.028 3.55707 4.93656 31.53 1489.47 1024.120 11.85 11.80 11.020 3.55928 4.94068 31.55 1489.49 1024.145 12.15 12.10 10.995 3.56001 4.94518 31.58 1489.44 1024.173 12.45 12.40 10.972 3.55416 4.94017 31.55 1489.31 1024.148 12.75 12.69 10.973 3.55143 4.93621 31.52 1489.29 1024.128 13.05 12.99 10.980 3.54830 4.93087 31.48 1489.28 1024.099 13.35 13.29 10.969 3.54940 4.93401 31.50 1489.26 1024.118 13.65 13.59 10.955 3.54994 4.93666 31.52 1489.24 1024.135 13.95 13.89 10.965 3.55200 4.93810 31.53 1489.30 1024.144 14.25 14.19 10.976 3.55922 4.94660 31.59 1489.41 1024.191 14.55 14.49 10.994 3.56078 4.94634 31.59 1489.48 1024.189 14.85 14.78 11.006 3.56324 4.94817 31.60 1489.54 1024.200 15.15 15.08 11.014 3.56574 4.95044 31.62 1489.60 1024.213 15.45 15.38 11.013 3.56727 4.95269 31.64 1489.62 1024.227 15.75 15.68 11.008 3.56515 4.95052 31.62 1489.59 1024.216 16.05 15.98 11.003 3.56277 4.94782 31.60 1489.55 1024.203 16.35 16.28 10.998 3.56247 4.94817 31.60 1489.54 1024.207 16.65 16.58 10.980 3.56208 4.95014 31.62 1489.49 1024.220 16.95 16.87 10.962 3.56261 4.95336 31.64 1489.46 1024.241 17.25 17.17 10.952 3.56245 4.95442 31.64 1489.44 1024.249 17.55 17.47 10.948 3.56225 4.95471 31.64 1489.43 1024.252 17.85 17.77 10.930 3.56233 4.95734 31.66 1489.39 1024.269 18.15 18.07 10.915 3.56244 4.95949 31.67 1489.36 1024.284 18.45 18.37 10.898 3.56098 4.95990 31.67 1489.30 1024.289 18.75 18.67 10.880 3.55989 4.96080 31.68 1489.25 1024.296 19.05 18.96 10.862 3.55885 4.96185 31.68 1489.20 1024.305 19.35 19.26 10.843 3.55757 4.96265 31.69 1489.14 1024.312 19.65 19.56 10.829 3.55595 4.96239 31.68 1489.09 1024.313 19.95 19.86 10.818 3.55468 4.96221 31.68 1489.05 1024.314 20.25 20.16 10.808 3.55407 4.96262 31.68 1489.03 1024.319 20.55 20.46 10.800 3.55415 4.96396 31.69 1489.01 1024.328 20.85 20.75 10.787 3.55367 4.96504 31.70 1488.98 1024.336 21.15 21.05 10.769 3.55350 4.96723 31.71 1488.94 1024.351 21.45 21.35 10.750 3.55158 4.96730 31.71 1488.87 1024.354 21.75 21.65 10.738 3.54906 4.96543 31.69 1488.81 1024.346 22.05 21.95 10.720 3.54714 4.96517 31.69 1488.75 1024.347 22.35 22.25 10.691 3.54588 4.96752 31.70 1488.67 1024.364 22.65 22.55 10.680 3.54538 4.96836 31.71 1488.64 1024.371 22.95 22.84 10.669 3.54538 4.96983 31.72 1488.62 1024.381 23.25 23.14 10.664 3.54453 4.96938 31.71 1488.60 1024.380 23.55 23.44 10.661 3.54415 4.96919 31.71 1488.59 1024.380 23.85 23.74 10.661 3.54449 4.96975 31.71 1488.60 1024.385 24.15 24.04 10.659 3.54529 4.97112 31.72 1488.61 1024.394 24.45 24.34 10.659 3.54607 4.97221 31.73 1488.62 1024.401 24.75 24.64 10.659 3.54619 4.97235 31.73 1488.63 1024.403 25.05 24.93 10.661 3.54756 4.97397 31.74 1488.66 1024.413 25.35 25.23 10.655 3.54740 4.97456 31.75 1488.65 1024.418 25.65 25.53 10.655 3.54704 4.97409 31.74 1488.64 1024.417 25.95 25.83 10.655 3.54763 4.97487 31.75 1488.66 1024.422 26.25 26.13 10.654 3.54795 4.97547 31.75 1488.66 1024.427 26.55 26.43 10.652 3.54715 4.97475 31.75 1488.65 1024.425 26.85 26.73 10.644 3.54688 4.97545 31.75 1488.63 1024.430 27.15 27.02 10.632 3.54558 4.97532 31.75 1488.59 1024.432 27.45 27.32 10.622 3.54552 4.97654 31.76 1488.57 1024.440 27.75 27.62 10.616 3.54531 4.97712 31.76 1488.56 1024.445 28.05 27.92 10.612 3.54582 4.97846 31.77 1488.56 1024.454 28.35 28.22 10.614 3.54611 4.97861 31.77 1488.57 1024.456 28.65 28.52 10.612 3.54634 4.97915 31.77 1488.58 1024.461 28.95 28.81 10.610 3.54644 4.97960 31.78 1488.58 1024.465 29.25 29.11 10.605 3.54613 4.97986 31.78 1488.56 1024.468 29.55 29.41 10.602 3.54611 4.98025 31.78 1488.56 1024.471 29.85 29.71 10.597 3.54592 4.98072 31.78 1488.55 1024.476 30.15 30.01 10.592 3.54601 4.98143 31.79 1488.55 1024.481 30.45 30.31 10.590 3.54598 4.98176 31.79 1488.54 1024.484 30.75 30.61 10.591 3.54582 4.98139 31.79 1488.55 1024.484 31.05 30.90 10.588 3.54632 4.98251 31.79 1488.55 1024.491 31.35 31.20 10.582 3.54583 4.98256 31.79 1488.54 1024.493 31.65 31.50 10.578 3.54540 4.98256 31.79 1488.53 1024.495 31.95 31.80 10.563 3.54412 4.98286 31.79 1488.48 1024.499 32.25 32.10 10.548 3.54432 4.98530 31.81 1488.45 1024.515 32.55 32.40 10.537 3.54339 4.98555 31.81 1488.41 1024.518 32.85 32.70 10.528 3.54334 4.98673 31.81 1488.39 1024.527 33.15 32.99 10.519 3.54329 4.98785 31.82 1488.38 1024.535 33.45 33.29 10.498 3.54331 4.99082 31.84 1488.33 1024.554 33.75 33.59 10.457 3.53624 4.98668 31.80 1488.14 1024.535 33.95 33.79 10.461 3.50754 4.94557 31.51 1487.81 1024.309