*2026/01/16 10:37:59.22 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/23 15:54:08.000 END TIME : UTC 2025/07/23 15:54:38.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 154 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 45.98 2 Depth metres 0.15 45.75 3 Temperature 'deg C (ITS90)' 8.563 17.648 4 Conductivity S/m 3.45201 3.97535 5 Conductance:Specific S/m 4.63638 5.1544 6 Salinity PSS-78 29.88 32.73 7 Speed:Sound m/s 1482.42 1509.15 8 Density kg/m^3 1021.498 1025.61 $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 : 239 LATITUDE : 49 39.76720 N ! (deg min) LONGITUDE : 126 28.59820 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250723_155408 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 154 154 MERGEHDR 1.3 2026/01/16 10:35:49 154 154 HDREDIT2 3.2 2026/01/16 10:36:20 ? ? REMOVECH 8.2 2026/01/16 10:36:52 154 154 CALIB 12.1 2026/01/16 10:37:23 154 154 CLEAN 5.3 2026/01/16 10:37:59 154 154 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:20 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 10:36:52 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:23 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 17.648 3.97535 4.66066 30.07 1509.15 1021.583 0.45 0.45 17.411 3.93268 4.63638 29.88 1508.23 1021.498 0.75 0.75 17.182 3.97168 4.70778 30.38 1508.11 1021.936 1.05 1.05 16.878 3.95334 4.72003 30.46 1507.28 1022.063 1.35 1.35 16.691 3.94867 4.73569 30.56 1506.82 1022.186 1.65 1.65 16.790 3.94502 4.72007 30.45 1507.01 1022.082 1.95 1.95 16.696 3.96140 4.75033 30.66 1506.97 1022.268 2.25 2.24 16.546 3.95877 4.76436 30.76 1506.62 1022.374 2.55 2.54 16.349 3.92497 4.74617 30.61 1505.86 1022.311 2.85 2.84 16.196 3.90339 4.73754 30.54 1505.31 1022.292 3.15 3.14 16.108 3.87130 4.70871 30.33 1504.79 1022.150 3.45 3.44 15.954 3.85010 4.70053 30.26 1504.24 1022.133 3.75 3.74 15.718 3.84320 4.71927 30.38 1503.64 1022.278 4.05 4.04 15.545 3.83988 4.73532 30.49 1503.22 1022.397 4.35 4.34 15.387 3.83317 4.74553 30.55 1502.80 1022.481 4.65 4.64 15.208 3.82226 4.75317 30.59 1502.29 1022.554 4.95 4.94 15.026 3.81336 4.76364 30.65 1501.78 1022.642 5.25 5.24 14.779 3.80963 4.78844 30.82 1501.18 1022.819 5.55 5.53 14.525 3.79388 4.79931 30.87 1500.44 1022.919 5.85 5.83 14.338 3.77761 4.80150 30.88 1499.84 1022.960 6.15 6.13 14.222 3.76679 4.80192 30.87 1499.46 1022.981 6.45 6.43 14.134 3.76834 4.81470 30.95 1499.27 1023.065 6.75 6.73 14.011 3.76840 4.82993 31.05 1498.99 1023.168 7.05 7.03 13.777 3.76867 4.85935 31.25 1498.45 1023.365 7.35 7.33 13.603 3.76852 4.88115 31.39 1498.05 1023.510 7.65 7.63 13.448 3.76235 4.89274 31.46 1497.62 1023.596 7.95 7.93 13.322 3.75675 4.90154 31.51 1497.27 1023.663 8.25 8.22 13.216 3.75264 4.90979 31.56 1496.98 1023.723 8.55 8.52 13.111 3.75118 4.92140 31.63 1496.72 1023.802 8.85 8.82 12.987 3.74926 4.93491 31.72 1496.41 1023.893 9.15 9.12 12.815 3.73370 4.93680 31.71 1495.83 1023.926 9.45 9.42 12.601 3.71138 4.93524 31.68 1495.07 1023.944 9.75 9.72 12.335 3.69717 4.95132 31.77 1494.28 1024.065 10.05 10.02 12.097 3.68803 4.97079 31.89 1493.60 1024.200 10.35 10.31 11.943 3.68212 4.98352 31.96 1493.17 1024.287 10.65 10.61 11.846 3.67917 4.99269 32.02 1492.90 1024.349 10.95 10.91 11.773 3.67848 5.00162 32.07 1492.72 1024.407 11.25 11.21 11.725 3.67703 5.00610 32.10 1492.60 1024.438 11.55 11.51 11.698 3.67601 5.00845 32.11 1492.52 1024.455 11.85 11.81 11.673 3.67494 5.01036 32.12 1492.46 1024.469 12.15 12.11 11.655 3.67370 5.01119 32.13 1492.40 1024.477 12.45 12.40 11.639 3.67326 5.01278 32.14 1492.36 1024.489 12.75 12.70 11.627 3.67161 5.01209 32.13 1492.32 1024.487 13.05 13.00 11.611 3.66970 5.01175 32.13 1492.26 1024.488 13.35 13.30 11.585 3.66890 5.01428 32.14 1492.19 1024.506 13.65 13.60 11.535 3.66513 5.01591 32.15 1492.03 1024.521 13.95 13.90 11.463 3.65779 5.01579 32.14 1491.77 1024.529 14.25 14.19 11.401 3.65042 5.01412 32.12 1491.54 1024.526 14.55 14.49 11.342 3.64669 5.01717 32.13 1491.36 1024.550 14.85 14.79 11.290 3.64436 5.02122 32.16 1491.21 1024.578 15.15 15.09 11.234 3.64049 5.02364 32.17 1491.03 1024.598 15.45 15.39 11.164 3.62828 5.01641 32.11 1490.72 1024.566 15.75 15.69 11.086 3.61890 5.01427 32.08 1490.42 1024.562 16.05 15.99 11.015 3.61324 5.01624 32.09 1490.18 1024.580 16.35 16.28 10.958 3.61127 5.02152 32.12 1490.02 1024.615 16.65 16.58 10.901 3.60853 5.02566 32.14 1489.85 1024.644 16.95 16.88 10.866 3.60673 5.02803 32.15 1489.75 1024.661 17.25 17.18 10.855 3.60652 5.02925 32.16 1489.72 1024.670 17.55 17.48 10.847 3.60559 5.02914 32.16 1489.70 1024.672 17.85 17.78 10.838 3.60541 5.03017 32.17 1489.68 1024.679 18.15 18.07 10.830 3.60468 5.03030 32.17 1489.65 1024.682 18.45 18.37 10.822 3.60511 5.03199 32.18 1489.64 1024.693 18.75 18.67 10.816 3.60464 5.03218 32.18 1489.63 1024.696 19.05 18.97 10.809 3.60332 5.03124 32.17 1489.60 1024.693 19.35 19.27 10.801 3.60351 5.03263 32.18 1489.59 1024.702 19.65 19.57 10.796 3.60210 5.03146 32.17 1489.56 1024.697 19.95 19.87 10.787 3.60123 5.03145 32.17 1489.53 1024.699 20.25 20.16 10.759 3.59927 5.03262 32.17 1489.45 1024.709 20.55 20.46 10.711 3.59450 5.03272 32.17 1489.27 1024.715 20.85 20.76 10.677 3.59219 5.03438 32.18 1489.16 1024.728 21.15 21.06 10.652 3.58802 5.03205 32.16 1489.06 1024.718 21.45 21.36 10.614 3.58506 5.03318 32.16 1488.93 1024.729 21.75 21.66 10.570 3.57957 5.03169 32.14 1488.76 1024.725 22.05 21.95 10.524 3.57623 5.03351 32.15 1488.61 1024.740 22.35 22.25 10.476 3.57210 5.03451 32.15 1488.44 1024.750 22.65 22.55 10.442 3.56887 5.03482 32.15 1488.32 1024.756 22.95 22.85 10.413 3.56726 5.03660 32.16 1488.24 1024.769 23.25 23.15 10.379 3.56489 5.03811 32.16 1488.13 1024.781 23.55 23.45 10.345 3.56343 5.04097 32.18 1488.03 1024.801 23.85 23.74 10.324 3.56250 5.04264 32.19 1487.97 1024.812 24.15 24.04 10.308 3.56184 5.04399 32.20 1487.93 1024.822 24.45 24.34 10.287 3.56076 5.04549 32.20 1487.86 1024.833 24.75 24.64 10.250 3.56019 5.04985 32.23 1487.77 1024.861 25.05 24.94 10.204 3.55840 5.05396 32.25 1487.64 1024.888 25.35 25.24 10.178 3.55297 5.04997 32.22 1487.51 1024.869 25.65 25.53 10.144 3.54932 5.04964 32.22 1487.39 1024.871 25.95 25.83 10.096 3.54487 5.05024 32.21 1487.21 1024.879 26.25 26.13 10.060 3.54275 5.05244 32.22 1487.10 1024.895 26.55 26.43 10.016 3.53903 5.05342 32.22 1486.95 1024.904 26.85 26.73 9.959 3.53712 5.05901 32.26 1486.78 1024.940 27.15 27.03 9.907 3.53040 5.05682 32.23 1486.58 1024.932 27.45 27.33 9.869 3.52400 5.05318 32.20 1486.41 1024.916 27.75 27.62 9.814 3.52089 5.05673 32.22 1486.23 1024.940 28.05 27.92 9.764 3.52031 5.06316 32.26 1486.10 1024.979 28.35 28.22 9.722 3.51496 5.06163 32.24 1485.93 1024.975 28.65 28.52 9.682 3.51393 5.06592 32.27 1485.82 1025.002 28.95 28.82 9.636 3.51335 5.07182 32.30 1485.70 1025.038 29.25 29.12 9.590 3.50898 5.07219 32.30 1485.54 1025.044 29.55 29.41 9.536 3.50370 5.07255 32.29 1485.34 1025.050 29.85 29.71 9.485 3.49918 5.07348 32.29 1485.15 1025.059 30.15 30.01 9.436 3.49753 5.07827 32.32 1485.01 1025.090 30.45 30.31 9.389 3.49321 5.07895 32.32 1484.84 1025.097 30.75 30.61 9.367 3.49113 5.07919 32.32 1484.76 1025.101 31.05 30.91 9.329 3.48958 5.08261 32.34 1484.65 1025.123 31.35 31.20 9.282 3.48822 5.08753 32.36 1484.52 1025.153 31.65 31.50 9.241 3.48529 5.08938 32.37 1484.38 1025.167 31.95 31.80 9.215 3.48209 5.08856 32.36 1484.28 1025.165 32.25 32.10 9.187 3.48033 5.09018 32.37 1484.19 1025.176 32.55 32.40 9.145 3.47915 5.09473 32.39 1484.07 1025.204 32.85 32.70 9.109 3.47757 5.09770 32.41 1483.96 1025.224 33.15 32.99 9.077 3.47643 5.10080 32.43 1483.87 1025.243 33.45 33.29 9.049 3.47456 5.10224 32.43 1483.78 1025.254 33.75 33.59 9.028 3.47369 5.10413 32.44 1483.72 1025.266 34.05 33.89 9.009 3.47292 5.10583 32.45 1483.66 1025.278 34.35 34.19 8.992 3.47236 5.10756 32.46 1483.62 1025.289 34.65 34.48 8.979 3.47207 5.10915 32.47 1483.58 1025.300 34.95 34.78 8.973 3.47218 5.11028 32.48 1483.57 1025.308 35.25 35.08 8.960 3.47190 5.11183 32.49 1483.54 1025.318 35.55 35.38 8.930 3.47123 5.11529 32.51 1483.46 1025.340 35.85 35.68 8.889 3.46909 5.11831 32.52 1483.33 1025.359 36.15 35.98 8.860 3.46507 5.11671 32.51 1483.21 1025.353 36.45 36.27 8.826 3.46318 5.11909 32.52 1483.10 1025.368 36.75 36.57 8.784 3.46133 5.12276 32.54 1482.97 1025.391 37.05 36.87 8.756 3.46095 5.12638 32.56 1482.90 1025.413 37.35 37.17 8.729 3.45967 5.12869 32.57 1482.82 1025.428 37.65 37.47 8.711 3.45890 5.13025 32.58 1482.77 1025.439 37.95 37.77 8.699 3.45851 5.13154 32.59 1482.74 1025.448 38.25 38.06 8.686 3.45856 5.13360 32.60 1482.71 1025.461 38.55 38.36 8.678 3.45881 5.13512 32.61 1482.70 1025.471 38.85 38.66 8.673 3.45843 5.13531 32.61 1482.68 1025.473 39.15 38.96 8.667 3.45839 5.13610 32.61 1482.67 1025.479 39.45 39.26 8.661 3.45786 5.13635 32.61 1482.65 1025.482 39.75 39.55 8.655 3.45706 5.13599 32.61 1482.63 1025.481 40.05 39.85 8.652 3.45752 5.13712 32.62 1482.64 1025.489 40.35 40.15 8.649 3.45726 5.13726 32.62 1482.63 1025.491 40.65 40.45 8.645 3.45655 5.13686 32.61 1482.61 1025.490 40.95 40.75 8.641 3.45712 5.13825 32.62 1482.62 1025.499 41.25 41.05 8.641 3.45585 5.13634 32.61 1482.60 1025.490 41.55 41.34 8.645 3.45732 5.13786 32.62 1482.64 1025.500 41.85 41.64 8.647 3.45751 5.13790 32.62 1482.65 1025.501 42.15 41.94 8.646 3.45685 5.13713 32.61 1482.64 1025.498 42.45 42.24 8.642 3.45653 5.13719 32.61 1482.63 1025.500 42.75 42.54 8.638 3.45718 5.13886 32.63 1482.64 1025.510 43.05 42.83 8.633 3.45696 5.13921 32.63 1482.63 1025.514 43.35 43.13 8.630 3.45614 5.13853 32.62 1482.61 1025.511 43.65 43.43 8.627 3.45718 5.14048 32.63 1482.62 1025.523 43.95 43.73 8.624 3.45600 5.13912 32.62 1482.61 1025.517 44.25 44.03 8.619 3.45501 5.13842 32.62 1482.58 1025.515 44.55 44.33 8.610 3.45397 5.13826 32.62 1482.55 1025.515 44.85 44.62 8.595 3.45359 5.14010 32.63 1482.51 1025.527 45.15 44.92 8.578 3.45280 5.14149 32.63 1482.46 1025.537 45.45 45.22 8.563 3.45201 5.14252 32.64 1482.42 1025.544 45.75 45.52 8.564 3.45769 5.15084 32.70 1482.50 1025.591 45.98 45.75 8.635 3.46738 5.15440 32.73 1482.81 1025.610