*2026/01/16 10:37:56.69 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/25 19:36:13.000 END TIME : UTC 2025/06/25 19:36:35.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 112 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.38 2 Depth metres 0.15 33.31 3 Temperature 'deg C (ITS90)' 9.487 18.117 4 Conductivity S/m 1.37695 3.52775 5 Conductance:Specific S/m 1.59725 5.00884 6 Salinity PSS-78 9.31 31.84 7 Speed:Sound m/s 1484.64 1497.32 8 Density kg/m^3 1005.672 1024.717 $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 : 191 LATITUDE : 49 10.55940 N ! (deg min) LONGITUDE : 124 49.62720 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250625_193613 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 112 112 MERGEHDR 1.3 2026/01/16 10:35:46 112 112 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:48 112 112 CALIB 12.1 2026/01/16 10:37:20 112 112 CLEAN 5.3 2026/01/16 10:37:56 112 112 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 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 10:36:48 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 17.883 1.37695 1.60548 9.36 1486.43 1005.756 0.45 0.46 18.117 1.37739 1.59725 9.31 1487.12 1005.672 0.75 0.76 18.095 1.37871 1.59960 9.32 1487.07 1005.689 1.05 1.06 18.067 1.38227 1.60478 9.36 1487.02 1005.721 1.35 1.37 18.005 1.39725 1.62453 9.48 1486.97 1005.830 1.65 1.67 17.940 1.44017 1.67697 9.81 1487.15 1006.096 1.95 1.98 17.915 1.47446 1.71790 10.07 1487.37 1006.300 2.25 2.28 17.925 1.47777 1.72134 10.09 1487.43 1006.316 2.55 2.58 17.930 1.48042 1.72423 10.11 1487.47 1006.330 2.85 2.89 17.927 1.48388 1.72837 10.14 1487.50 1006.352 3.15 3.19 17.922 1.48844 1.73388 10.17 1487.52 1006.381 3.45 3.50 17.914 1.49322 1.73977 10.21 1487.55 1006.412 3.75 3.80 17.893 1.50029 1.74886 10.27 1487.55 1006.462 4.05 4.10 17.858 1.51996 1.77324 10.42 1487.62 1006.588 4.35 4.41 17.781 1.56844 1.83308 10.80 1487.82 1006.895 4.65 4.71 17.259 1.85901 2.19953 13.16 1488.84 1008.796 4.95 5.01 16.502 2.70523 3.25917 20.21 1494.47 1014.327 5.25 5.31 15.507 3.26100 4.02526 25.46 1497.32 1018.551 5.55 5.61 14.436 3.41359 4.32802 27.52 1496.24 1020.356 5.85 5.91 13.694 3.49816 4.52033 28.83 1495.32 1021.510 6.15 6.21 13.229 3.51075 4.59173 29.30 1494.32 1021.964 6.45 6.51 12.883 3.51589 4.64047 29.61 1493.53 1022.276 6.75 6.81 12.592 3.52096 4.68312 29.89 1492.87 1022.546 7.05 7.11 12.389 3.52274 4.71089 30.07 1492.39 1022.723 7.35 7.41 12.285 3.52562 4.72794 30.18 1492.17 1022.829 7.65 7.71 12.189 3.52775 4.74300 30.28 1491.96 1022.924 7.95 8.01 11.935 3.52608 4.77330 30.47 1491.32 1023.119 8.25 8.31 11.786 3.52060 4.78527 30.54 1490.89 1023.202 8.55 8.60 11.610 3.51833 4.80512 30.66 1490.43 1023.330 8.85 8.90 11.427 3.51243 4.82114 30.75 1489.91 1023.437 9.15 9.20 11.301 3.51142 4.83654 30.85 1489.58 1023.534 9.45 9.50 11.220 3.51025 4.84580 30.91 1489.37 1023.594 9.75 9.80 11.160 3.50809 4.85076 30.93 1489.20 1023.628 10.05 10.10 11.087 3.50729 4.85948 30.99 1489.01 1023.684 10.35 10.40 11.026 3.50499 4.86447 31.02 1488.83 1023.718 10.65 10.70 10.985 3.50394 4.86861 31.04 1488.72 1023.745 10.95 10.99 10.949 3.50239 4.87133 31.06 1488.62 1023.765 11.25 11.29 10.905 3.50111 4.87550 31.08 1488.50 1023.793 11.55 11.59 10.867 3.50009 4.87928 31.10 1488.39 1023.818 11.85 11.89 10.842 3.49937 4.88160 31.12 1488.33 1023.834 12.15 12.19 10.811 3.49792 4.88391 31.13 1488.23 1023.851 12.45 12.49 10.774 3.49719 4.88785 31.15 1488.14 1023.876 12.75 12.79 10.733 3.49614 4.89198 31.18 1488.03 1023.904 13.05 13.09 10.692 3.49419 4.89487 31.19 1487.90 1023.924 13.35 13.38 10.651 3.49168 4.89703 31.20 1487.77 1023.941 13.65 13.68 10.606 3.49035 4.90130 31.23 1487.65 1023.969 13.95 13.98 10.566 3.48980 4.90607 31.26 1487.55 1024.000 14.25 14.28 10.514 3.48728 4.90966 31.27 1487.39 1024.025 14.55 14.58 10.470 3.48577 4.91372 31.30 1487.26 1024.052 14.85 14.88 10.444 3.48522 4.91647 31.31 1487.19 1024.070 15.15 15.18 10.414 3.48482 4.92016 31.34 1487.12 1024.094 15.45 15.47 10.383 3.48439 4.92386 31.36 1487.04 1024.118 15.75 15.77 10.360 3.48299 4.92507 31.36 1486.97 1024.127 16.05 16.07 10.343 3.48157 4.92544 31.37 1486.91 1024.132 16.35 16.37 10.317 3.47951 4.92607 31.37 1486.83 1024.138 16.65 16.67 10.291 3.48046 4.93111 31.40 1486.77 1024.169 16.95 16.97 10.258 3.47866 4.93314 31.41 1486.67 1024.184 17.25 17.27 10.214 3.47578 4.93526 31.42 1486.53 1024.200 17.55 17.56 10.166 3.47212 4.93677 31.42 1486.37 1024.213 17.85 17.86 10.128 3.47144 4.94109 31.45 1486.27 1024.240 18.15 18.16 10.111 3.47038 4.94202 31.45 1486.22 1024.248 18.45 18.46 10.089 3.47034 4.94500 31.47 1486.16 1024.267 18.75 18.76 10.068 3.47036 4.94808 31.49 1486.11 1024.287 19.05 19.06 10.045 3.46902 4.94943 31.50 1486.04 1024.297 19.35 19.36 10.027 3.46754 4.94981 31.50 1485.98 1024.302 19.65 19.65 10.007 3.46727 4.95220 31.51 1485.94 1024.317 19.95 19.95 9.984 3.46581 4.95343 31.52 1485.86 1024.327 20.25 20.25 9.965 3.46462 4.95436 31.52 1485.81 1024.334 20.55 20.55 9.940 3.46326 4.95601 31.53 1485.73 1024.346 20.85 20.85 9.915 3.46072 4.95599 31.53 1485.64 1024.349 21.15 21.15 9.883 3.45972 4.95900 31.54 1485.55 1024.369 21.45 21.45 9.857 3.45935 4.96215 31.56 1485.48 1024.389 21.75 21.74 9.837 3.45874 4.96421 31.57 1485.43 1024.403 22.05 22.04 9.817 3.45808 4.96614 31.58 1485.37 1024.416 22.35 22.34 9.785 3.45664 4.96854 31.60 1485.28 1024.432 22.65 22.64 9.755 3.45694 4.97336 31.63 1485.21 1024.462 22.95 22.94 9.735 3.45556 4.97416 31.63 1485.14 1024.469 23.25 23.24 9.722 3.45594 4.97652 31.64 1485.12 1024.484 23.55 23.54 9.712 3.45556 4.97743 31.65 1485.09 1024.491 23.85 23.83 9.693 3.45484 4.97913 31.66 1485.04 1024.502 24.15 24.13 9.675 3.45533 4.98239 31.68 1485.01 1024.523 24.45 24.43 9.664 3.45546 4.98416 31.69 1484.98 1024.534 24.75 24.73 9.654 3.45553 4.98582 31.70 1484.96 1024.545 25.05 25.03 9.648 3.45542 4.98643 31.70 1484.95 1024.550 25.35 25.33 9.641 3.45576 4.98797 31.71 1484.94 1024.560 25.65 25.63 9.630 3.45573 4.98951 31.72 1484.92 1024.571 25.95 25.92 9.623 3.45594 4.99076 31.73 1484.91 1024.579 26.25 26.22 9.615 3.45555 4.99136 31.73 1484.89 1024.584 26.55 26.52 9.606 3.45466 4.99135 31.73 1484.86 1024.586 26.85 26.82 9.599 3.45521 4.99327 31.74 1484.85 1024.598 27.15 27.12 9.593 3.45517 4.99408 31.75 1484.84 1024.604 27.45 27.42 9.589 3.45470 4.99389 31.75 1484.83 1024.605 27.75 27.71 9.583 3.45479 4.99497 31.75 1484.82 1024.612 28.05 28.01 9.573 3.45481 4.99645 31.76 1484.80 1024.622 28.35 28.31 9.564 3.45487 4.99779 31.77 1484.78 1024.631 28.65 28.61 9.555 3.45426 4.99823 31.77 1484.75 1024.636 28.95 28.91 9.548 3.45470 4.99992 31.78 1484.74 1024.647 29.25 29.21 9.542 3.45444 5.00040 31.79 1484.73 1024.651 29.55 29.51 9.536 3.45445 5.00121 31.79 1484.72 1024.657 29.85 29.80 9.534 3.45429 5.00124 31.79 1484.72 1024.658 30.15 30.10 9.538 3.45449 5.00103 31.79 1484.74 1024.658 30.45 30.40 9.540 3.45510 5.00157 31.79 1484.75 1024.662 30.75 30.70 9.541 3.45458 5.00068 31.79 1484.76 1024.659 31.05 31.00 9.538 3.45430 5.00078 31.79 1484.75 1024.661 31.35 31.30 9.527 3.45366 5.00137 31.79 1484.72 1024.666 31.65 31.59 9.522 3.45376 5.00229 31.80 1484.71 1024.672 31.95 31.89 9.509 3.45354 5.00388 31.80 1484.68 1024.683 32.25 32.19 9.496 3.45378 5.00611 31.82 1484.65 1024.698 32.55 32.49 9.491 3.45382 5.00682 31.82 1484.65 1024.703 32.85 32.79 9.488 3.45334 5.00652 31.82 1484.64 1024.703 33.15 33.09 9.487 3.45483 5.00884 31.84 1484.66 1024.717 33.38 33.31 9.487 3.45403 5.00767 31.83 1484.65 1024.711