*2026/01/16 10:37:54.57 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 22:38:16.000 END TIME : UTC 2025/05/27 22:38:41.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.71 2 Depth metres 0.15 37.57 3 Temperature 'deg C (ITS90)' 9.489 12.859 4 Conductivity S/m 1.51927 3.50904 5 Conductance:Specific S/m 2.00915 5.00505 6 Salinity PSS-78 11.84 31.81 7 Speed:Sound m/s 1472.2 1489.73 8 Density kg/m^3 1008.549 1024.714 $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 : 159 LATITUDE : 49 38.20760 N ! (deg min) LONGITUDE : 126 21.07220 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_223816 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 126 126 MERGEHDR 1.3 2026/01/16 10:35:45 126 126 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 126 126 CALIB 12.1 2026/01/16 10:37:18 126 126 CLEAN 5.3 2026/01/16 10:37:54 126 126 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:42 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 12.809 1.51927 2.00915 11.84 1472.20 1008.549 0.45 0.45 12.854 1.53762 2.03101 11.98 1472.53 1008.652 0.75 0.76 12.859 1.58181 2.08906 12.35 1472.99 1008.939 1.05 1.06 12.826 1.77207 2.34242 13.98 1474.81 1010.205 1.35 1.36 12.753 2.18191 2.88974 17.58 1478.79 1012.988 1.65 1.66 12.599 2.40321 3.19584 19.62 1480.66 1014.587 1.95 1.97 12.568 2.60255 3.46376 21.43 1482.70 1015.989 2.25 2.27 12.319 2.89046 3.87260 24.21 1485.12 1018.181 2.55 2.57 12.179 3.07987 4.14191 26.06 1486.83 1019.638 2.85 2.87 12.068 3.22591 4.35131 27.51 1488.18 1020.782 3.15 3.17 12.009 3.29600 4.45292 28.22 1488.82 1021.340 3.45 3.47 11.905 3.39685 4.60210 29.26 1489.70 1022.165 3.75 3.76 11.757 3.43256 4.66927 29.72 1489.73 1022.549 4.05 4.06 11.617 3.44994 4.71078 29.99 1489.58 1022.792 4.35 4.36 11.560 3.45864 4.73013 30.13 1489.54 1022.905 4.65 4.66 11.520 3.46264 4.74069 30.20 1489.50 1022.968 4.95 4.96 11.481 3.46914 4.75469 30.29 1489.48 1023.050 5.25 5.26 11.413 3.46448 4.75720 30.30 1489.26 1023.072 5.55 5.56 11.346 3.46059 4.76062 30.32 1489.05 1023.098 5.85 5.86 11.292 3.47124 4.78232 30.47 1489.04 1023.223 6.15 6.16 11.286 3.49237 4.81224 30.68 1489.27 1023.390 6.45 6.45 11.279 3.50579 4.83174 30.81 1489.42 1023.499 6.75 6.75 11.259 3.50715 4.83625 30.84 1489.39 1023.527 7.05 7.05 11.228 3.50263 4.83411 30.82 1489.26 1023.519 7.35 7.35 11.209 3.49881 4.83134 30.80 1489.18 1023.507 7.65 7.65 11.176 3.49627 4.83229 30.81 1489.07 1023.516 7.95 7.95 11.132 3.49510 4.83657 30.83 1488.95 1023.545 8.25 8.25 11.092 3.49586 4.84301 30.87 1488.86 1023.585 8.55 8.55 11.053 3.49454 4.84644 30.89 1488.75 1023.609 8.85 8.84 11.018 3.49641 4.85366 30.94 1488.69 1023.653 9.15 9.14 10.989 3.49695 4.85835 30.97 1488.63 1023.682 9.45 9.44 10.946 3.49997 4.86833 31.03 1488.56 1023.742 9.75 9.74 10.907 3.50615 4.88222 31.13 1488.54 1023.823 10.05 10.04 10.863 3.50086 4.88088 31.11 1488.37 1023.821 10.35 10.34 10.840 3.50206 4.88567 31.14 1488.33 1023.850 10.65 10.64 10.815 3.50828 4.89774 31.23 1488.35 1023.920 10.95 10.94 10.787 3.50880 4.90235 31.26 1488.28 1023.949 11.25 11.23 10.766 3.50900 4.90546 31.28 1488.24 1023.969 11.55 11.53 10.755 3.50859 4.90639 31.28 1488.21 1023.976 11.85 11.83 10.748 3.50892 4.90784 31.29 1488.20 1023.986 12.15 12.13 10.745 3.50833 4.90746 31.29 1488.19 1023.986 12.45 12.43 10.740 3.50894 4.90905 31.30 1488.19 1023.996 12.75 12.73 10.735 3.50794 4.90825 31.29 1488.17 1023.993 13.05 13.03 10.731 3.50858 4.90976 31.30 1488.17 1024.003 13.35 13.32 10.727 3.50879 4.91055 31.31 1488.17 1024.009 13.65 13.62 10.722 3.50904 4.91160 31.31 1488.17 1024.016 13.95 13.92 10.716 3.50777 4.91064 31.31 1488.14 1024.013 14.25 14.22 10.709 3.50729 4.91094 31.31 1488.12 1024.016 14.55 14.52 10.696 3.50618 4.91110 31.31 1488.08 1024.020 14.85 14.82 10.675 3.50544 4.91297 31.32 1488.02 1024.033 15.15 15.12 10.658 3.50564 4.91559 31.33 1487.99 1024.050 15.45 15.41 10.648 3.50533 4.91654 31.34 1487.96 1024.057 15.75 15.71 10.631 3.50477 4.91811 31.35 1487.92 1024.068 16.05 16.01 10.618 3.50254 4.91674 31.34 1487.86 1024.063 16.35 16.31 10.607 3.50090 4.91602 31.33 1487.82 1024.061 16.65 16.61 10.599 3.49973 4.91555 31.33 1487.79 1024.061 16.95 16.91 10.585 3.49878 4.91614 31.33 1487.75 1024.066 17.25 17.21 10.572 3.49966 4.91909 31.35 1487.73 1024.085 17.55 17.51 10.563 3.49804 4.91809 31.34 1487.69 1024.081 17.85 17.80 10.554 3.49836 4.91980 31.35 1487.68 1024.093 18.15 18.10 10.548 3.49755 4.91952 31.35 1487.66 1024.093 18.45 18.40 10.545 3.49727 4.91956 31.35 1487.65 1024.094 18.75 18.70 10.542 3.49715 4.91975 31.35 1487.65 1024.097 19.05 19.00 10.538 3.49731 4.92055 31.35 1487.65 1024.103 19.35 19.30 10.536 3.49737 4.92092 31.35 1487.65 1024.106 19.65 19.60 10.536 3.49770 4.92140 31.36 1487.65 1024.110 19.95 19.89 10.538 3.49772 4.92103 31.36 1487.67 1024.109 20.25 20.19 10.543 3.49740 4.91996 31.35 1487.68 1024.104 20.55 20.49 10.538 3.49713 4.92028 31.35 1487.67 1024.108 20.85 20.79 10.535 3.49731 4.92094 31.35 1487.67 1024.113 21.15 21.09 10.533 3.49745 4.92136 31.36 1487.67 1024.117 21.45 21.39 10.533 3.49735 4.92134 31.36 1487.67 1024.118 21.75 21.69 10.530 3.49711 4.92140 31.36 1487.66 1024.120 22.05 21.98 10.528 3.49710 4.92164 31.36 1487.67 1024.122 22.35 22.28 10.527 3.49672 4.92120 31.35 1487.66 1024.121 22.65 22.58 10.526 3.49616 4.92063 31.35 1487.66 1024.120 22.95 22.88 10.523 3.49672 4.92180 31.36 1487.66 1024.127 23.25 23.18 10.519 3.49675 4.92230 31.36 1487.66 1024.132 23.55 23.48 10.518 3.49683 4.92257 31.36 1487.66 1024.135 23.85 23.78 10.515 3.49599 4.92188 31.36 1487.65 1024.132 24.15 24.07 10.508 3.49606 4.92298 31.36 1487.63 1024.140 24.45 24.37 10.488 3.49527 4.92458 31.37 1487.58 1024.152 24.75 24.67 10.443 3.49377 4.92873 31.40 1487.45 1024.179 25.05 24.97 10.370 3.48815 4.93092 31.40 1487.20 1024.198 25.35 25.27 10.294 3.47836 4.92770 31.37 1486.90 1024.187 25.65 25.57 10.180 3.47301 4.93599 31.42 1486.55 1024.242 25.95 25.87 10.100 3.47054 4.94385 31.46 1486.31 1024.292 26.25 26.16 10.042 3.46899 4.94976 31.50 1486.15 1024.329 26.55 26.46 9.997 3.46817 4.95494 31.53 1486.03 1024.362 26.85 26.76 9.965 3.46668 4.95732 31.54 1485.94 1024.378 27.15 27.06 9.940 3.46634 4.96047 31.56 1485.87 1024.399 27.45 27.36 9.921 3.46634 4.96314 31.57 1485.83 1024.416 27.75 27.66 9.907 3.46582 4.96434 31.58 1485.79 1024.425 28.05 27.96 9.895 3.46518 4.96521 31.58 1485.75 1024.431 28.35 28.25 9.885 3.46469 4.96589 31.59 1485.73 1024.437 28.65 28.55 9.877 3.46453 4.96678 31.59 1485.71 1024.444 28.95 28.85 9.872 3.46491 4.96802 31.60 1485.71 1024.452 29.25 29.15 9.867 3.46472 4.96848 31.60 1485.70 1024.456 29.55 29.45 9.856 3.46419 4.96931 31.61 1485.67 1024.463 29.85 29.75 9.847 3.46321 4.96917 31.61 1485.64 1024.464 30.15 30.05 9.838 3.46287 4.97003 31.61 1485.61 1024.470 30.45 30.34 9.829 3.46133 4.96900 31.60 1485.58 1024.466 30.75 30.64 9.815 3.46123 4.97086 31.61 1485.54 1024.479 31.05 30.94 9.791 3.45968 4.97204 31.62 1485.47 1024.488 31.35 31.24 9.772 3.45894 4.97376 31.63 1485.41 1024.500 31.65 31.54 9.758 3.45794 4.97424 31.63 1485.37 1024.505 31.95 31.84 9.742 3.45771 4.97621 31.64 1485.33 1024.518 32.25 32.13 9.728 3.45729 4.97772 31.65 1485.29 1024.528 32.55 32.43 9.716 3.45661 4.97847 31.65 1485.26 1024.534 32.85 32.73 9.705 3.45704 4.98060 31.67 1485.24 1024.548 33.15 33.03 9.695 3.45693 4.98190 31.67 1485.22 1024.557 33.45 33.33 9.682 3.45716 4.98414 31.69 1485.19 1024.571 33.75 33.63 9.673 3.45735 4.98568 31.70 1485.18 1024.581 34.05 33.93 9.679 3.45549 4.98217 31.67 1485.17 1024.563 34.35 34.22 9.671 3.45542 4.98312 31.68 1485.16 1024.570 34.65 34.52 9.651 3.45372 4.98356 31.68 1485.09 1024.575 34.95 34.82 9.624 3.45301 4.98641 31.70 1485.02 1024.593 35.25 35.12 9.588 3.45297 4.99159 31.73 1484.93 1024.625 35.55 35.42 9.574 3.45252 4.99290 31.73 1484.89 1024.634 35.85 35.72 9.564 3.45288 4.99489 31.75 1484.87 1024.647 36.15 36.01 9.558 3.45204 4.99459 31.74 1484.85 1024.647 36.45 36.31 9.546 3.45185 4.99604 31.75 1484.82 1024.657 36.75 36.61 9.531 3.45074 4.99664 31.75 1484.78 1024.662 37.05 36.91 9.524 3.45249 5.00018 31.78 1484.78 1024.683 37.35 37.21 9.489 3.45234 5.00505 31.81 1484.70 1024.714 37.71 37.57 9.505 3.45221 5.00241 31.79 1484.74 1024.700