*2026/01/16 10:37:53.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 18:17:24.000 END TIME : UTC 2025/05/08 18:17:45.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 106 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.54 2 Depth metres 0.15 31.39 3 Temperature 'deg C (ITS90)' 8.794 11.541 4 Conductivity S/m 3.38162 3.46405 5 Conductance:Specific S/m 4.65704 5.03489 6 Salinity PSS-78 29.6 31.92 7 Speed:Sound m/s 1482.17 1489.46 8 Density kg/m^3 1022.497 1024.885 $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 : 136 LATITUDE : 48 55.83350 N ! (deg min) LONGITUDE : 125 23.43480 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_181724 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 106 106 MERGEHDR 1.3 2026/01/16 10:35:43 106 106 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:40 106 106 CALIB 12.1 2026/01/16 10:37:16 106 106 CLEAN 5.3 2026/01/16 10:37:53 106 106 $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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 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 11.527 3.46405 4.74174 30.21 1489.46 1022.954 0.45 0.45 11.541 3.43927 4.70607 29.95 1489.21 1022.759 0.75 0.75 11.522 3.41675 4.67767 29.75 1488.91 1022.606 1.05 1.05 11.498 3.39941 4.65704 29.60 1488.65 1022.497 1.35 1.35 11.290 3.38162 4.65919 29.60 1487.92 1022.530 1.65 1.64 11.119 3.42701 4.74402 30.18 1488.01 1023.011 1.95 1.94 11.132 3.43363 4.75148 30.23 1488.13 1023.052 2.25 2.24 11.131 3.43760 4.75718 30.27 1488.18 1023.085 2.55 2.54 11.066 3.44267 4.77275 30.38 1488.08 1023.177 2.85 2.84 10.944 3.44208 4.78811 30.47 1487.76 1023.274 3.15 3.14 10.859 3.43901 4.79512 30.51 1487.51 1023.320 3.45 3.44 10.790 3.43743 4.80225 30.55 1487.32 1023.367 3.75 3.74 10.727 3.43673 4.80966 30.60 1487.16 1023.414 4.05 4.04 10.664 3.43204 4.81168 30.60 1486.94 1023.431 4.35 4.33 10.623 3.42974 4.81398 30.62 1486.82 1023.448 4.65 4.63 10.589 3.42855 4.81692 30.63 1486.72 1023.468 4.95 4.93 10.557 3.42804 4.82054 30.65 1486.64 1023.492 5.25 5.23 10.516 3.42549 4.82249 30.66 1486.51 1023.507 5.55 5.53 10.481 3.42485 4.82638 30.69 1486.41 1023.532 5.85 5.83 10.458 3.42206 4.82547 30.68 1486.33 1023.530 6.15 6.13 10.432 3.42041 4.82668 30.68 1486.24 1023.540 6.45 6.43 10.399 3.41971 4.83021 30.70 1486.16 1023.563 6.75 6.72 10.347 3.41990 4.83759 30.75 1486.03 1023.609 7.05 7.02 10.278 3.41708 4.84310 30.78 1485.82 1023.646 7.35 7.32 10.228 3.41698 4.84976 30.82 1485.70 1023.687 7.65 7.62 10.180 3.41328 4.85112 30.82 1485.53 1023.699 7.95 7.92 10.110 3.41165 4.85857 30.87 1485.33 1023.746 8.25 8.22 9.995 3.40884 4.87044 30.94 1485.01 1023.820 8.55 8.52 9.890 3.40471 4.87917 30.99 1484.69 1023.876 8.85 8.82 9.819 3.40207 4.88535 31.02 1484.48 1023.916 9.15 9.11 9.737 3.39872 4.89211 31.06 1484.23 1023.959 9.45 9.41 9.656 3.39729 4.90151 31.11 1484.00 1024.017 9.75 9.71 9.584 3.39406 4.90695 31.14 1483.78 1024.052 10.05 10.01 9.502 3.39493 4.91996 31.22 1483.58 1024.129 10.35 10.31 9.438 3.39469 4.92868 31.27 1483.42 1024.182 10.65 10.61 9.408 3.39428 4.93234 31.30 1483.34 1024.205 10.95 10.91 9.389 3.39427 4.93510 31.31 1483.29 1024.222 11.25 11.20 9.376 3.39370 4.93612 31.32 1483.26 1024.230 11.55 11.50 9.364 3.39348 4.93750 31.33 1483.23 1024.239 11.85 11.80 9.356 3.39399 4.93943 31.34 1483.22 1024.252 12.15 12.10 9.352 3.39444 4.94070 31.35 1483.22 1024.260 12.45 12.40 9.345 3.39430 4.94145 31.35 1483.20 1024.266 12.75 12.70 9.335 3.39410 4.94266 31.36 1483.18 1024.274 13.05 13.00 9.326 3.39356 4.94316 31.36 1483.15 1024.279 13.35 13.29 9.312 3.39250 4.94362 31.36 1483.11 1024.283 13.65 13.59 9.299 3.39334 4.94669 31.38 1483.09 1024.302 13.95 13.89 9.288 3.39390 4.94915 31.40 1483.07 1024.317 14.25 14.19 9.272 3.39451 4.95237 31.42 1483.04 1024.337 14.55 14.49 9.263 3.39496 4.95434 31.43 1483.03 1024.350 14.85 14.79 9.257 3.39661 4.95756 31.45 1483.04 1024.369 15.15 15.09 9.244 3.39684 4.95971 31.46 1483.01 1024.383 15.45 15.38 9.235 3.39620 4.96018 31.47 1482.98 1024.387 15.75 15.68 9.230 3.39639 4.96115 31.47 1482.98 1024.394 16.05 15.98 9.229 3.39629 4.96120 31.47 1482.98 1024.395 16.35 16.28 9.228 3.39637 4.96145 31.47 1482.98 1024.398 16.65 16.58 9.228 3.39709 4.96247 31.48 1483.00 1024.405 16.95 16.88 9.226 3.39663 4.96204 31.48 1482.99 1024.404 17.25 17.18 9.222 3.39684 4.96295 31.48 1482.99 1024.410 17.55 17.47 9.220 3.39751 4.96419 31.49 1483.00 1024.418 17.85 17.77 9.214 3.39701 4.96440 31.49 1482.98 1024.421 18.15 18.07 9.204 3.39732 4.96632 31.50 1482.96 1024.433 18.45 18.37 9.198 3.39716 4.96690 31.51 1482.95 1024.438 18.75 18.67 9.193 3.39749 4.96811 31.51 1482.94 1024.446 19.05 18.97 9.191 3.39727 4.96811 31.51 1482.94 1024.448 19.35 19.27 9.186 3.39706 4.96843 31.52 1482.93 1024.451 19.65 19.56 9.185 3.39745 4.96920 31.52 1482.94 1024.457 19.95 19.86 9.184 3.39768 4.96974 31.52 1482.94 1024.461 20.25 20.16 9.182 3.39661 4.96846 31.52 1482.93 1024.455 20.55 20.46 9.178 3.39690 4.96942 31.52 1482.93 1024.462 20.85 20.76 9.172 3.39611 4.96913 31.52 1482.91 1024.462 21.15 21.06 9.169 3.39753 4.97164 31.54 1482.92 1024.477 21.45 21.36 9.163 3.39644 4.97098 31.53 1482.89 1024.475 21.75 21.65 9.153 3.39642 4.97233 31.54 1482.87 1024.484 22.05 21.95 9.147 3.39691 4.97397 31.55 1482.87 1024.495 22.35 22.25 9.142 3.39651 4.97405 31.55 1482.86 1024.497 22.65 22.55 9.134 3.39636 4.97504 31.55 1482.84 1024.504 22.95 22.85 9.125 3.39703 4.97739 31.57 1482.83 1024.518 23.25 23.15 9.119 3.39767 4.97915 31.58 1482.82 1024.530 23.55 23.44 9.113 3.39791 4.98044 31.59 1482.81 1024.538 23.85 23.74 9.106 3.39804 4.98156 31.60 1482.80 1024.546 24.15 24.04 9.100 3.39841 4.98307 31.60 1482.80 1024.556 24.45 24.34 9.083 3.39843 4.98557 31.62 1482.76 1024.572 24.75 24.64 9.067 3.39905 4.98879 31.64 1482.73 1024.591 25.05 24.94 9.053 3.39924 4.99109 31.65 1482.70 1024.606 25.35 25.24 9.043 3.39892 4.99205 31.66 1482.67 1024.613 25.65 25.53 9.034 3.39961 4.99448 31.67 1482.66 1024.628 25.95 25.83 9.022 3.39939 4.99582 31.68 1482.64 1024.637 26.25 26.13 9.011 3.39964 4.99790 31.70 1482.61 1024.650 26.55 26.43 8.995 3.39920 4.99958 31.70 1482.57 1024.661 26.85 26.73 8.985 3.39960 5.00157 31.72 1482.56 1024.674 27.15 27.03 8.971 3.39963 5.00379 31.73 1482.52 1024.688 27.45 27.33 8.950 3.39961 5.00674 31.75 1482.47 1024.706 27.75 27.62 8.935 3.40037 5.01015 31.77 1482.45 1024.727 28.05 27.92 8.923 3.40057 5.01224 31.78 1482.42 1024.740 28.35 28.22 8.908 3.40028 5.01402 31.79 1482.38 1024.752 28.65 28.52 8.908 3.40111 5.01525 31.80 1482.40 1024.760 28.95 28.82 8.891 3.40215 5.01930 31.83 1482.37 1024.784 29.25 29.12 8.852 3.40191 5.02466 31.86 1482.27 1024.816 29.55 29.41 8.832 3.40204 5.02783 31.88 1482.23 1024.836 29.85 29.71 8.818 3.40205 5.02992 31.89 1482.20 1024.849 30.15 30.01 8.813 3.40175 5.03028 31.89 1482.18 1024.853 30.45 30.31 8.811 3.40156 5.03021 31.89 1482.18 1024.854 30.75 30.61 8.809 3.40193 5.03112 31.90 1482.18 1024.860 31.05 30.91 8.809 3.40221 5.03155 31.90 1482.19 1024.864 31.35 31.20 8.801 3.40190 5.03221 31.90 1482.17 1024.869 31.54 31.39 8.794 3.40298 5.03489 31.92 1482.17 1024.885