*2026/01/16 09:57:54.00 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 21:13:28.000 END TIME : UTC 2024/08/15 21:13:46.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 95 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.37 2 Depth metres 0.15 28.24 3 Temperature 'deg C (ITS90)' 9.636 19.282 4 Conductivity S/m 3.49974 4.21376 5 Conductance:Specific S/m 4.5104 5.05223 6 Salinity PSS-78 29.02 32.16 7 Speed:Sound m/s 1485.52 1514.79 8 Density kg/m^3 1020.618 1024.928 $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 : 218 LATITUDE : 48 56.51090 N ! (deg min) LONGITUDE : 125 15.90190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_211328 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 95 95 MERGEHDR 1.3 2026/01/16 09:54:02 95 95 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 95 95 CALIB 12.1 2026/01/16 09:56:54 95 95 CLEAN 5.3 2026/01/16 09:57:54 95 95 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 19.282 4.21376 4.75788 30.84 1514.79 1021.773 0.45 0.45 19.045 4.16268 4.72552 30.59 1513.85 1021.649 0.75 0.75 18.777 4.09500 4.67710 30.23 1512.67 1021.442 1.05 1.05 18.559 4.04519 4.64331 29.98 1511.76 1021.304 1.35 1.35 18.412 3.97649 4.57998 29.52 1510.81 1020.989 1.65 1.65 18.409 3.92440 4.52031 29.09 1510.32 1020.665 1.95 1.95 18.379 3.91311 4.51040 29.02 1510.16 1020.618 2.25 2.25 18.307 3.92463 4.53122 29.17 1510.12 1020.748 2.55 2.55 18.172 3.94642 4.57055 29.44 1510.04 1020.993 2.85 2.85 17.971 4.09571 4.76563 30.84 1511.03 1022.107 3.15 3.14 17.385 4.06943 4.80055 31.06 1509.54 1022.418 3.45 3.44 16.903 4.02978 4.80848 31.09 1508.12 1022.556 3.75 3.74 16.572 3.96709 4.77129 30.81 1506.79 1022.414 4.05 4.04 15.817 3.85940 4.72768 30.45 1504.04 1022.309 4.35 4.34 14.895 3.84042 4.81320 31.00 1501.76 1022.934 4.65 4.64 14.400 3.80790 4.83230 31.10 1500.28 1023.116 4.95 4.94 14.181 3.79689 4.84528 31.18 1499.66 1023.221 5.25 5.24 13.995 3.79370 4.86429 31.30 1499.20 1023.354 5.55 5.54 13.896 3.78924 4.87099 31.34 1498.93 1023.406 5.85 5.83 13.777 3.78085 4.87514 31.36 1498.56 1023.447 6.15 6.13 13.625 3.77137 4.88200 31.40 1498.11 1023.507 6.45 6.43 13.500 3.76159 4.88521 31.41 1497.72 1023.543 6.75 6.73 13.408 3.75331 4.88605 31.41 1497.41 1023.561 7.05 7.03 13.292 3.74513 4.89025 31.43 1497.05 1023.600 7.35 7.33 13.204 3.74281 4.89850 31.48 1496.82 1023.659 7.65 7.63 13.091 3.73593 4.90400 31.51 1496.49 1023.705 7.95 7.93 12.949 3.72780 4.91165 31.55 1496.06 1023.766 8.25 8.22 12.683 3.71126 4.92437 31.61 1495.25 1023.869 8.55 8.52 12.443 3.67998 4.91412 31.52 1494.32 1023.842 8.85 8.82 12.220 3.66886 4.92858 31.60 1493.66 1023.948 9.15 9.12 11.994 3.65330 4.93765 31.64 1492.94 1024.023 9.45 9.42 11.875 3.64176 4.93793 31.63 1492.52 1024.039 9.75 9.72 11.780 3.63951 4.94764 31.69 1492.27 1024.103 10.05 10.02 11.715 3.63481 4.95004 31.70 1492.06 1024.124 10.35 10.32 11.641 3.62904 4.95219 31.71 1491.82 1024.145 10.65 10.61 11.545 3.62622 4.96131 31.76 1491.55 1024.206 10.95 10.91 11.466 3.61722 4.95973 31.74 1491.26 1024.206 11.25 11.21 11.433 3.61514 4.96141 31.75 1491.16 1024.219 11.55 11.51 11.409 3.61303 4.96168 31.75 1491.08 1024.224 11.85 11.81 11.369 3.61041 4.96357 31.76 1490.96 1024.240 12.15 12.11 11.339 3.60771 4.96400 31.76 1490.85 1024.246 12.45 12.41 11.316 3.60701 4.96617 31.77 1490.79 1024.261 12.75 12.70 11.284 3.60597 4.96906 31.79 1490.71 1024.282 13.05 13.00 11.256 3.60533 4.97201 31.80 1490.64 1024.302 13.35 13.30 11.241 3.60435 4.97275 31.81 1490.59 1024.308 13.65 13.60 11.227 3.60324 4.97309 31.81 1490.55 1024.313 13.95 13.90 11.209 3.60310 4.97538 31.82 1490.51 1024.328 14.25 14.20 11.172 3.60189 4.97883 31.84 1490.41 1024.352 14.55 14.50 11.149 3.59790 4.97655 31.82 1490.31 1024.343 14.85 14.79 11.118 3.59496 4.97671 31.82 1490.20 1024.348 15.15 15.09 11.084 3.59175 4.97693 31.82 1490.08 1024.353 15.45 15.39 11.015 3.58709 4.97999 31.83 1489.86 1024.377 15.75 15.69 10.956 3.58387 4.98366 31.85 1489.68 1024.404 16.05 15.99 10.926 3.58124 4.98414 31.85 1489.58 1024.410 16.35 16.29 10.880 3.57516 4.98213 31.83 1489.40 1024.404 16.65 16.59 10.833 3.57195 4.98417 31.84 1489.25 1024.420 16.95 16.88 10.791 3.56963 4.98683 31.85 1489.12 1024.440 17.25 17.18 10.743 3.56774 4.99086 31.88 1488.98 1024.467 17.55 17.48 10.683 3.56414 4.99418 31.89 1488.79 1024.491 17.85 17.78 10.633 3.55940 4.99446 31.89 1488.61 1024.498 18.15 18.08 10.564 3.55785 5.00198 31.93 1488.43 1024.546 18.45 18.38 10.534 3.55954 5.00869 31.98 1488.38 1024.587 18.75 18.67 10.477 3.54962 5.00267 31.93 1488.12 1024.559 19.05 18.97 10.418 3.54579 5.00567 31.94 1487.93 1024.581 19.35 19.27 10.382 3.54360 5.00764 31.95 1487.81 1024.596 19.65 19.57 10.341 3.54258 5.01202 31.98 1487.70 1024.624 19.95 19.87 10.325 3.54190 5.01333 31.98 1487.66 1024.634 20.25 20.17 10.306 3.54052 5.01408 31.99 1487.60 1024.641 20.55 20.47 10.296 3.54036 5.01524 31.99 1487.58 1024.649 20.85 20.76 10.284 3.53985 5.01617 32.00 1487.55 1024.656 21.15 21.06 10.278 3.53960 5.01677 32.00 1487.53 1024.661 21.45 21.36 10.260 3.53869 5.01794 32.01 1487.48 1024.670 21.75 21.66 10.227 3.53687 5.02013 32.02 1487.38 1024.686 22.05 21.96 10.187 3.53318 5.02052 32.02 1487.24 1024.692 22.35 22.26 10.164 3.53103 5.02084 32.02 1487.16 1024.697 22.65 22.55 10.128 3.52924 5.02335 32.03 1487.05 1024.714 22.95 22.85 10.092 3.52751 5.02615 32.04 1486.94 1024.733 23.25 23.15 10.077 3.52582 5.02583 32.04 1486.89 1024.734 23.55 23.45 10.062 3.52442 5.02602 32.04 1486.84 1024.737 23.85 23.75 10.042 3.52411 5.02839 32.05 1486.79 1024.753 24.15 24.05 10.030 3.52362 5.02945 32.06 1486.76 1024.761 24.45 24.35 10.016 3.52395 5.03192 32.07 1486.73 1024.776 24.75 24.64 10.008 3.52190 5.03019 32.06 1486.69 1024.769 25.05 24.94 9.974 3.51965 5.03178 32.07 1486.58 1024.781 25.35 25.24 9.957 3.51686 5.03033 32.05 1486.51 1024.775 25.65 25.54 9.947 3.51665 5.03142 32.06 1486.48 1024.783 25.95 25.84 9.929 3.51716 5.03476 32.08 1486.45 1024.804 26.25 26.14 9.924 3.51745 5.03579 32.09 1486.45 1024.811 26.55 26.43 9.921 3.51556 5.03360 32.07 1486.42 1024.801 26.85 26.73 9.906 3.51452 5.03425 32.07 1486.37 1024.806 27.15 27.03 9.882 3.51356 5.03636 32.09 1486.30 1024.821 27.45 27.33 9.842 3.50877 5.03530 32.07 1486.15 1024.819 27.75 27.63 9.788 3.50393 5.03618 32.07 1485.95 1024.828 28.05 27.93 9.679 3.50093 5.04766 32.14 1485.64 1024.899 28.37 28.24 9.636 3.49974 5.05223 32.16 1485.52 1024.928