*2026/01/16 09:57:57.54 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/27 17:56:09.000 END TIME : UTC 2024/11/27 17:56:25.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.09 2 Depth metres 0.15 25.01 3 Temperature 'deg C (ITS90)' 7.679 10.895 4 Conductivity S/m 0.93633 3.46863 5 Conductance:Specific S/m 1.43262 4.84198 6 Salinity PSS-78 8.08 30.83 7 Speed:Sound m/s 1447.94 1488.14 8 Density kg/m^3 1006.225 1023.674 $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 : 321 LATITUDE : 48 58.86380 N ! (deg min) LONGITUDE : 124 58.21360 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241127_175609 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:10 84 84 MERGEHDR 1.3 2026/01/16 09:54:13 84 84 HDREDIT2 3.2 2026/01/16 09:55:16 ? ? REMOVECH 8.2 2026/01/16 09:56:26 84 84 CALIB 12.1 2026/01/16 09:56:59 84 84 CLEAN 5.3 2026/01/16 09:57:57 84 84 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:16 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 09:56:26 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 7.679 0.93633 1.43262 8.08 1447.94 1006.225 0.45 0.46 7.714 0.96143 1.46944 8.30 1448.37 1006.400 0.75 0.76 8.090 1.14868 1.73568 9.95 1451.95 1007.660 1.05 1.06 8.471 1.56578 2.33902 13.77 1458.17 1010.605 1.35 1.36 9.214 2.47976 3.62393 22.26 1471.44 1017.143 1.65 1.66 9.481 3.01313 4.36928 27.38 1478.68 1021.096 1.95 1.96 9.733 3.15160 4.53695 28.57 1481.07 1021.989 2.25 2.26 10.037 3.25063 4.63888 29.32 1483.10 1022.525 2.55 2.56 10.246 3.30440 4.68763 29.68 1484.30 1022.777 2.85 2.86 10.401 3.33317 4.70775 29.84 1485.06 1022.877 3.15 3.16 10.534 3.35797 4.72505 29.98 1485.71 1022.963 3.45 3.46 10.609 3.36998 4.73190 30.04 1486.05 1022.996 3.75 3.76 10.656 3.37165 4.72801 30.01 1486.20 1022.972 4.05 4.06 10.673 3.37383 4.72887 30.02 1486.27 1022.977 4.35 4.36 10.683 3.37531 4.72954 30.03 1486.32 1022.981 4.65 4.65 10.690 3.37912 4.73404 30.06 1486.39 1023.006 4.95 4.95 10.701 3.38353 4.73868 30.09 1486.48 1023.032 5.25 5.25 10.711 3.38599 4.74086 30.11 1486.54 1023.044 5.55 5.55 10.719 3.38771 4.74213 30.12 1486.58 1023.052 5.85 5.85 10.732 3.39216 4.74662 30.15 1486.68 1023.076 6.15 6.15 10.738 3.39429 4.74889 30.17 1486.72 1023.090 6.45 6.45 10.741 3.39666 4.75170 30.19 1486.76 1023.106 6.75 6.75 10.746 3.39958 4.75518 30.21 1486.81 1023.126 7.05 7.05 10.757 3.40547 4.76202 30.26 1486.92 1023.164 7.35 7.34 10.763 3.41074 4.76849 30.31 1487.00 1023.200 7.65 7.64 10.771 3.41466 4.77289 30.34 1487.07 1023.225 7.95 7.94 10.784 3.41804 4.77591 30.36 1487.15 1023.242 8.25 8.24 10.799 3.42155 4.77889 30.39 1487.23 1023.258 8.55 8.54 10.804 3.42253 4.77955 30.39 1487.26 1023.263 8.85 8.84 10.808 3.42423 4.78138 30.41 1487.30 1023.273 9.15 9.14 10.814 3.42727 4.78488 30.43 1487.35 1023.293 9.45 9.44 10.815 3.42940 4.78760 30.45 1487.39 1023.310 9.75 9.74 10.818 3.43052 4.78881 30.46 1487.41 1023.317 10.05 10.03 10.826 3.43590 4.79531 30.50 1487.50 1023.353 10.35 10.33 10.837 3.43977 4.79915 30.53 1487.58 1023.375 10.65 10.63 10.845 3.44136 4.80034 30.54 1487.62 1023.382 10.95 10.93 10.849 3.44265 4.80153 30.55 1487.66 1023.389 11.25 11.23 10.855 3.44388 4.80248 30.56 1487.69 1023.395 11.55 11.53 10.859 3.44434 4.80257 30.56 1487.71 1023.397 11.85 11.83 10.861 3.44541 4.80386 30.57 1487.73 1023.405 12.15 12.13 10.862 3.44586 4.80433 30.57 1487.75 1023.409 12.45 12.42 10.861 3.44575 4.80433 30.57 1487.75 1023.410 12.75 12.72 10.862 3.44684 4.80576 30.58 1487.77 1023.419 13.05 13.02 10.861 3.44679 4.80577 30.58 1487.77 1023.421 13.35 13.32 10.868 3.44797 4.80644 30.59 1487.81 1023.425 13.65 13.62 10.873 3.44838 4.80638 30.59 1487.83 1023.425 13.95 13.92 10.877 3.44979 4.80782 30.60 1487.86 1023.434 14.25 14.22 10.875 3.45093 4.80966 30.61 1487.87 1023.446 14.55 14.52 10.875 3.45240 4.81176 30.62 1487.89 1023.459 14.85 14.82 10.874 3.45233 4.81170 30.62 1487.90 1023.460 15.15 15.11 10.876 3.45255 4.81176 30.62 1487.91 1023.461 15.45 15.41 10.876 3.45313 4.81263 30.63 1487.92 1023.467 15.75 15.71 10.878 3.45504 4.81492 30.65 1487.95 1023.481 16.05 16.01 10.888 3.45691 4.81629 30.66 1488.00 1023.489 16.35 16.31 10.892 3.45874 4.81824 30.67 1488.04 1023.500 16.65 16.61 10.892 3.45925 4.81895 30.68 1488.05 1023.506 16.95 16.91 10.895 3.46040 4.82015 30.69 1488.08 1023.513 17.25 17.21 10.894 3.46130 4.82151 30.69 1488.09 1023.522 17.55 17.50 10.895 3.46185 4.82219 30.70 1488.11 1023.527 17.85 17.80 10.895 3.46224 4.82280 30.70 1488.11 1023.532 18.15 18.10 10.889 3.46240 4.82372 30.71 1488.11 1023.538 18.45 18.40 10.884 3.46249 4.82453 30.71 1488.10 1023.544 18.75 18.70 10.878 3.46259 4.82553 30.72 1488.09 1023.552 19.05 19.00 10.874 3.46268 4.82618 30.72 1488.09 1023.557 19.35 19.30 10.874 3.46308 4.82675 30.73 1488.10 1023.561 19.65 19.60 10.877 3.46435 4.82815 30.74 1488.12 1023.570 19.95 19.89 10.876 3.46502 4.82920 30.75 1488.13 1023.577 20.25 20.19 10.867 3.46357 4.82829 30.74 1488.10 1023.574 20.55 20.49 10.868 3.46401 4.82881 30.74 1488.11 1023.578 20.85 20.79 10.861 3.46383 4.82951 30.75 1488.10 1023.584 21.15 21.09 10.853 3.46384 4.83063 30.75 1488.08 1023.592 21.45 21.39 10.848 3.46395 4.83147 30.76 1488.07 1023.598 21.75 21.69 10.844 3.46438 4.83252 30.77 1488.07 1023.606 22.05 21.99 10.846 3.46643 4.83522 30.78 1488.11 1023.622 22.35 22.28 10.843 3.46793 4.83760 30.80 1488.12 1023.636 22.65 22.58 10.851 3.46720 4.83559 30.79 1488.14 1023.626 22.95 22.88 10.850 3.46703 4.83550 30.79 1488.14 1023.627 23.25 23.18 10.846 3.46650 4.83522 30.78 1488.13 1023.627 23.55 23.48 10.842 3.46768 4.83739 30.80 1488.14 1023.640 23.85 23.78 10.840 3.46738 4.83732 30.80 1488.13 1023.641 24.15 24.08 10.838 3.46761 4.83787 30.80 1488.14 1023.646 24.45 24.38 10.835 3.46725 4.83780 30.80 1488.13 1023.647 24.75 24.67 10.826 3.46668 4.83822 30.80 1488.10 1023.651 25.09 25.01 10.818 3.46863 4.84198 30.83 1488.11 1023.674