*2026/01/16 10:37:50.16 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 20:11:03.000 END TIME : UTC 2025/04/08 20:11:20.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 88 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.14 2 Depth metres 0.15 26.08 3 Temperature 'deg C (ITS90)' 8.836 9.912 4 Conductivity S/m 2.88564 3.0858 5 Conductance:Specific S/m 4.14755 4.55995 6 Salinity PSS-78 25.88 28.61 7 Speed:Sound m/s 1477.98 1480.55 8 Density kg/m^3 1019.878 1022.265 $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 : 88 LATITUDE : 49 50.90110 N ! (deg min) LONGITUDE : 126 54.45200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_201103 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 88 88 MERGEHDR 1.3 2026/01/16 10:35:41 88 88 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 88 88 CALIB 12.1 2026/01/16 10:37:13 88 88 CLEAN 5.3 2026/01/16 10:37:50 88 88 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 9.787 2.88564 4.14755 25.88 1477.98 1019.878 0.45 0.45 9.816 2.89920 4.16366 26.00 1478.23 1019.964 0.75 0.75 9.851 2.91918 4.18813 26.17 1478.57 1020.094 1.05 1.05 9.861 2.93926 4.21566 26.36 1478.84 1020.242 1.35 1.35 9.860 2.94701 4.22698 26.44 1478.94 1020.304 1.65 1.65 9.857 2.95244 4.23512 26.49 1479.00 1020.349 1.95 1.95 9.853 2.95528 4.23963 26.52 1479.03 1020.375 2.25 2.25 9.859 2.95608 4.24008 26.53 1479.06 1020.378 2.55 2.55 9.867 2.95679 4.24014 26.53 1479.09 1020.380 2.85 2.85 9.873 2.95662 4.23909 26.52 1479.12 1020.375 3.15 3.15 9.879 2.95792 4.24025 26.53 1479.15 1020.382 3.45 3.45 9.889 2.96225 4.24521 26.57 1479.24 1020.409 3.75 3.75 9.901 2.97456 4.26142 26.68 1479.42 1020.497 4.05 4.05 9.905 2.98323 4.27332 26.76 1479.54 1020.562 4.35 4.35 9.905 2.99599 4.29160 26.89 1479.70 1020.661 4.65 4.65 9.902 3.01647 4.32133 27.09 1479.94 1020.823 4.95 4.94 9.903 3.02916 4.33942 27.22 1480.10 1020.922 5.25 5.24 9.907 3.04763 4.36532 27.40 1480.34 1021.063 5.55 5.54 9.912 3.05528 4.37572 27.47 1480.45 1021.120 5.85 5.84 9.910 3.05775 4.37951 27.50 1480.48 1021.142 6.15 6.14 9.908 3.05853 4.38088 27.51 1480.49 1021.150 6.45 6.44 9.905 3.05959 4.38277 27.52 1480.50 1021.162 6.75 6.74 9.901 3.06051 4.38459 27.53 1480.50 1021.174 7.05 7.04 9.896 3.06283 4.38854 27.56 1480.52 1021.196 7.35 7.34 9.892 3.06391 4.39053 27.57 1480.53 1021.209 7.65 7.64 9.886 3.06535 4.39337 27.59 1480.54 1021.226 7.95 7.94 9.880 3.06743 4.39717 27.62 1480.55 1021.248 8.25 8.24 9.869 3.06916 4.40099 27.64 1480.54 1021.271 8.55 8.54 9.862 3.06911 4.40186 27.65 1480.53 1021.277 8.85 8.84 9.855 3.07000 4.40399 27.66 1480.52 1021.290 9.15 9.14 9.849 3.06998 4.40474 27.66 1480.51 1021.296 9.45 9.44 9.843 3.07124 4.40729 27.68 1480.52 1021.312 9.75 9.74 9.834 3.07242 4.41010 27.70 1480.51 1021.329 10.05 10.04 9.825 3.07458 4.41427 27.73 1480.52 1021.353 10.35 10.33 9.820 3.07597 4.41700 27.75 1480.52 1021.370 10.65 10.63 9.810 3.07600 4.41832 27.75 1480.50 1021.379 10.95 10.93 9.798 3.07639 4.42031 27.77 1480.48 1021.391 11.25 11.23 9.791 3.07714 4.42230 27.78 1480.47 1021.404 11.55 11.53 9.782 3.07756 4.42406 27.79 1480.46 1021.415 11.85 11.83 9.769 3.07777 4.42597 27.80 1480.43 1021.428 12.15 12.13 9.759 3.07830 4.42803 27.81 1480.41 1021.441 12.45 12.43 9.749 3.07848 4.42954 27.82 1480.39 1021.451 12.75 12.73 9.740 3.07860 4.43085 27.83 1480.38 1021.460 13.05 13.03 9.732 3.07891 4.43237 27.84 1480.36 1021.470 13.35 13.33 9.727 3.07914 4.43338 27.85 1480.35 1021.477 13.65 13.63 9.722 3.07873 4.43335 27.85 1480.34 1021.479 13.95 13.93 9.719 3.07864 4.43366 27.85 1480.34 1021.482 14.25 14.23 9.713 3.07903 4.43500 27.86 1480.33 1021.491 14.55 14.53 9.709 3.07898 4.43544 27.86 1480.32 1021.495 14.85 14.83 9.701 3.07909 4.43664 27.87 1480.31 1021.503 15.15 15.12 9.683 3.07870 4.43835 27.88 1480.26 1021.514 15.45 15.42 9.652 3.07877 4.44241 27.90 1480.18 1021.540 15.75 15.72 9.622 3.07782 4.44490 27.91 1480.09 1021.556 16.05 16.02 9.598 3.07726 4.44716 27.93 1480.02 1021.571 16.35 16.32 9.567 3.07591 4.44918 27.94 1479.92 1021.585 16.65 16.62 9.540 3.07586 4.45260 27.96 1479.85 1021.607 16.95 16.92 9.496 3.07524 4.45740 27.99 1479.73 1021.637 17.25 17.22 9.436 3.07484 4.46462 28.03 1479.56 1021.681 17.55 17.52 9.403 3.07393 4.46753 28.05 1479.47 1021.700 17.85 17.82 9.347 3.07338 4.47406 28.08 1479.31 1021.739 18.15 18.12 9.293 3.07267 4.47999 28.12 1479.16 1021.776 18.45 18.42 9.251 3.07198 4.48454 28.14 1479.03 1021.804 18.75 18.72 9.219 3.07105 4.48732 28.16 1478.94 1021.822 19.05 19.02 9.177 3.07067 4.49231 28.19 1478.82 1021.853 19.35 19.32 9.130 3.06885 4.49581 28.21 1478.67 1021.875 19.65 19.61 9.087 3.06717 4.49902 28.22 1478.54 1021.896 19.95 19.91 9.068 3.06445 4.49753 28.21 1478.46 1021.890 20.25 20.21 9.041 3.06471 4.50153 28.24 1478.39 1021.915 20.55 20.51 9.017 3.06395 4.50355 28.25 1478.32 1021.928 20.85 20.81 9.008 3.06498 4.50626 28.26 1478.31 1021.944 21.15 21.11 9.004 3.06686 4.50962 28.29 1478.33 1021.964 21.45 21.41 9.001 3.06870 4.51272 28.31 1478.35 1021.982 21.75 21.71 8.998 3.06957 4.51440 28.32 1478.35 1021.993 22.05 22.01 8.993 3.07021 4.51600 28.33 1478.35 1022.003 22.35 22.31 8.987 3.07008 4.51656 28.33 1478.34 1022.008 22.65 22.61 8.982 3.07050 4.51778 28.34 1478.34 1022.016 22.95 22.91 8.977 3.07010 4.51786 28.34 1478.32 1022.018 23.25 23.20 8.976 3.07000 4.51788 28.34 1478.32 1022.019 23.55 23.50 8.977 3.07025 4.51814 28.34 1478.33 1022.022 23.85 23.80 8.975 3.06973 4.51761 28.34 1478.33 1022.020 24.15 24.10 8.974 3.06965 4.51759 28.34 1478.33 1022.021 24.45 24.40 8.972 3.06979 4.51807 28.34 1478.33 1022.025 24.75 24.70 8.969 3.07059 4.51963 28.35 1478.34 1022.035 25.05 25.00 8.956 3.07276 4.52461 28.38 1478.33 1022.064 25.35 25.30 8.933 3.07551 4.53172 28.43 1478.31 1022.105 25.65 25.60 8.877 3.07988 4.54568 28.52 1478.21 1022.185 25.95 25.90 8.836 3.08580 4.55995 28.61 1478.17 1022.265 26.14 26.08 8.847 3.07921 4.54867 28.54 1478.13 1022.204