*2026/01/16 09:57:49.74 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/25 18:07:57.000 END TIME : UTC 2024/04/25 18:08:18.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 109 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.44 2 Depth metres 0.15 32.42 3 Temperature 'deg C (ITS90)' 10.59 11.622 4 Conductivity S/m 2.35335 3.07402 5 Conductance:Specific S/m 3.213 4.31778 6 Salinity PSS-78 19.68 27.13 7 Speed:Sound m/s 1477.23 1482.97 8 Density kg/m^3 1014.784 1020.866 $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 : 93 LATITUDE : 49 8.88380 N ! (deg min) LONGITUDE : 125 48.11820 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240425_180757 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:58 109 109 MERGEHDR 1.3 2026/01/16 09:53:50 109 109 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 109 109 CALIB 12.1 2026/01/16 09:56:48 109 109 CLEAN 5.3 2026/01/16 09:57:49 109 109 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.622 2.35335 3.21300 19.68 1477.23 1014.784 0.45 0.45 11.465 2.66219 3.65029 22.63 1480.18 1017.090 0.75 0.75 11.432 2.71455 3.72554 23.14 1480.68 1017.492 1.05 1.05 11.390 2.74922 3.77740 23.49 1480.95 1017.772 1.35 1.35 11.279 2.81407 3.87839 24.17 1481.37 1018.321 1.65 1.65 11.187 2.84868 3.93609 24.56 1481.51 1018.638 1.95 1.95 11.100 2.87929 3.98796 24.91 1481.62 1018.924 2.25 2.25 11.026 2.89800 4.02210 25.14 1481.64 1019.115 2.55 2.55 10.960 2.90979 4.04588 25.29 1481.59 1019.249 2.85 2.85 10.907 2.91647 4.06118 25.40 1481.53 1019.337 3.15 3.15 10.878 2.91841 4.06717 25.43 1481.47 1019.373 3.45 3.45 10.857 2.91958 4.07117 25.46 1481.43 1019.398 3.75 3.75 10.849 2.92251 4.07609 25.49 1481.45 1019.426 4.05 4.05 10.839 2.93608 4.09622 25.63 1481.59 1019.536 4.35 4.35 10.823 2.95087 4.11863 25.78 1481.72 1019.659 4.65 4.65 10.795 2.95268 4.12447 25.82 1481.66 1019.694 4.95 4.95 10.758 2.95732 4.13523 25.89 1481.62 1019.756 5.25 5.25 10.745 2.96133 4.14235 25.94 1481.64 1019.797 5.55 5.55 10.740 2.96164 4.14331 25.95 1481.63 1019.804 5.85 5.85 10.732 2.96181 4.14450 25.95 1481.62 1019.812 6.15 6.15 10.730 2.96176 4.14462 25.95 1481.62 1019.814 6.45 6.45 10.722 2.96119 4.14472 25.95 1481.59 1019.817 6.75 6.75 10.709 2.96135 4.14647 25.96 1481.56 1019.829 7.05 7.05 10.701 2.96102 4.14694 25.97 1481.54 1019.833 7.35 7.35 10.691 2.96298 4.15090 25.99 1481.54 1019.857 7.65 7.65 10.679 2.96319 4.15255 26.00 1481.51 1019.868 7.95 7.95 10.667 2.96396 4.15510 26.02 1481.49 1019.884 8.25 8.25 10.663 2.96382 4.15529 26.02 1481.49 1019.886 8.55 8.55 10.658 2.96347 4.15538 26.02 1481.47 1019.889 8.85 8.85 10.656 2.96579 4.15894 26.04 1481.50 1019.909 9.15 9.15 10.655 2.96584 4.15905 26.05 1481.50 1019.911 9.45 9.45 10.656 2.96852 4.16273 26.07 1481.54 1019.932 9.75 9.75 10.659 2.97022 4.16470 26.08 1481.58 1019.944 10.05 10.05 10.661 2.97129 4.16606 26.09 1481.60 1019.952 10.35 10.35 10.661 2.97452 4.17059 26.13 1481.64 1019.978 10.65 10.65 10.650 2.98651 4.18863 26.25 1481.75 1020.077 10.95 10.95 10.641 2.98884 4.19298 26.28 1481.76 1020.102 11.25 11.25 10.640 2.99138 4.19669 26.30 1481.79 1020.124 11.55 11.55 10.642 2.99436 4.20065 26.33 1481.84 1020.146 11.85 11.85 10.644 2.99678 4.20381 26.35 1481.88 1020.164 12.15 12.15 10.643 3.00365 4.21352 26.42 1481.96 1020.218 12.45 12.45 10.642 3.00693 4.21827 26.45 1482.00 1020.245 12.75 12.75 10.638 3.01920 4.23591 26.57 1482.14 1020.341 13.05 13.05 10.633 3.02228 4.24084 26.61 1482.16 1020.369 13.35 13.35 10.628 3.02319 4.24272 26.62 1482.17 1020.381 13.65 13.65 10.624 3.02658 4.24794 26.66 1482.20 1020.411 13.95 13.95 10.619 3.03078 4.25449 26.70 1482.24 1020.448 14.25 14.25 10.612 3.03437 4.26038 26.74 1482.27 1020.481 14.55 14.55 10.606 3.03465 4.26147 26.75 1482.26 1020.489 14.85 14.85 10.605 3.03613 4.26363 26.76 1482.28 1020.502 15.15 15.15 10.604 3.03705 4.26503 26.77 1482.29 1020.511 15.45 15.45 10.603 3.03858 4.26731 26.79 1482.31 1020.525 15.75 15.75 10.602 3.03904 4.26812 26.79 1482.32 1020.530 16.05 16.05 10.601 3.04070 4.27055 26.81 1482.34 1020.545 16.35 16.35 10.601 3.04454 4.27590 26.85 1482.39 1020.575 16.65 16.65 10.600 3.04896 4.28224 26.89 1482.44 1020.610 16.95 16.94 10.598 3.05075 4.28505 26.91 1482.46 1020.627 17.25 17.24 10.596 3.05258 4.28781 26.93 1482.48 1020.643 17.55 17.54 10.596 3.05358 4.28928 26.94 1482.50 1020.653 17.85 17.84 10.596 3.05506 4.29126 26.95 1482.52 1020.664 18.15 18.14 10.596 3.05855 4.29623 26.99 1482.57 1020.693 18.45 18.44 10.597 3.05873 4.29636 26.99 1482.58 1020.695 18.75 18.74 10.596 3.05975 4.29789 27.00 1482.59 1020.704 19.05 19.04 10.596 3.06022 4.29854 27.00 1482.60 1020.709 19.35 19.34 10.596 3.06090 4.29955 27.01 1482.61 1020.716 19.65 19.64 10.596 3.06180 4.30076 27.02 1482.63 1020.723 19.95 19.94 10.596 3.06261 4.30193 27.02 1482.64 1020.731 20.25 20.24 10.596 3.06291 4.30230 27.03 1482.65 1020.734 20.55 20.54 10.597 3.06365 4.30330 27.03 1482.67 1020.741 20.85 20.84 10.596 3.06416 4.30407 27.04 1482.68 1020.746 21.15 21.14 10.596 3.06409 4.30398 27.04 1482.68 1020.747 21.45 21.44 10.596 3.06440 4.30443 27.04 1482.69 1020.751 21.75 21.74 10.597 3.06572 4.30618 27.05 1482.71 1020.762 22.05 22.04 10.596 3.06501 4.30523 27.05 1482.71 1020.758 22.35 22.34 10.597 3.06461 4.30459 27.04 1482.71 1020.756 22.65 22.64 10.597 3.06574 4.30622 27.05 1482.73 1020.766 22.95 22.94 10.596 3.06582 4.30641 27.05 1482.73 1020.768 23.25 23.24 10.596 3.06635 4.30713 27.06 1482.74 1020.773 23.55 23.54 10.597 3.06689 4.30782 27.06 1482.75 1020.778 23.85 23.84 10.597 3.06720 4.30823 27.07 1482.76 1020.782 24.15 24.14 10.597 3.06779 4.30904 27.07 1482.78 1020.787 24.45 24.43 10.597 3.06783 4.30912 27.07 1482.78 1020.789 24.75 24.73 10.596 3.06815 4.30968 27.08 1482.79 1020.793 25.05 25.03 10.597 3.06831 4.30982 27.08 1482.80 1020.795 25.35 25.33 10.597 3.06853 4.31009 27.08 1482.80 1020.798 25.65 25.63 10.597 3.06906 4.31087 27.08 1482.81 1020.804 25.95 25.93 10.596 3.07020 4.31258 27.10 1482.83 1020.814 26.25 26.23 10.596 3.07053 4.31299 27.10 1482.84 1020.818 26.55 26.53 10.596 3.07077 4.31338 27.10 1482.85 1020.821 26.85 26.83 10.597 3.07098 4.31357 27.10 1482.86 1020.823 27.15 27.13 10.596 3.07149 4.31436 27.11 1482.86 1020.829 27.45 27.43 10.597 3.07235 4.31551 27.12 1482.88 1020.836 27.75 27.73 10.598 3.07265 4.31581 27.12 1482.89 1020.839 28.05 28.03 10.598 3.07294 4.31622 27.12 1482.90 1020.843 28.35 28.33 10.598 3.07283 4.31606 27.12 1482.90 1020.843 28.65 28.63 10.598 3.07337 4.31681 27.13 1482.92 1020.848 28.95 28.93 10.598 3.07299 4.31618 27.12 1482.92 1020.846 29.25 29.23 10.597 3.07289 4.31628 27.12 1482.92 1020.848 29.55 29.53 10.594 3.07340 4.31725 27.13 1482.92 1020.855 29.85 29.83 10.597 3.07311 4.31650 27.12 1482.93 1020.852 30.15 30.13 10.598 3.07336 4.31679 27.12 1482.94 1020.855 30.45 30.43 10.598 3.07305 4.31634 27.12 1482.94 1020.854 30.75 30.73 10.597 3.07402 4.31778 27.13 1482.95 1020.863 31.05 31.03 10.597 3.07349 4.31705 27.13 1482.95 1020.860 31.35 31.33 10.598 3.07350 4.31692 27.12 1482.96 1020.860 31.65 31.62 10.598 3.07356 4.31709 27.13 1482.96 1020.863 31.95 31.92 10.598 3.07384 4.31746 27.13 1482.97 1020.866 32.25 32.22 10.596 3.07199 4.31512 27.11 1482.95 1020.855 32.44 32.42 10.590 3.07115 4.31467 27.11 1482.93 1020.854