*2026/01/16 10:37:50.74 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 00:21:25.000 END TIME : UTC 2025/04/09 00:21:49.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 123 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.74 2 Depth metres 0.15 36.65 3 Temperature 'deg C (ITS90)' 8.646 9.56 4 Conductivity S/m 2.45389 3.15412 5 Conductance:Specific S/m 3.55561 4.67813 6 Salinity PSS-78 21.83 29.41 7 Speed:Sound m/s 1472.01 1479.2 8 Density kg/m^3 1016.76 1022.958 $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 : 94 LATITUDE : 49 52.28650 N ! (deg min) LONGITUDE : 126 44.96750 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_002125 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:27 123 123 MERGEHDR 1.3 2026/01/16 10:35:41 123 123 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 123 123 CALIB 12.1 2026/01/16 10:37:14 123 123 CLEAN 5.3 2026/01/16 10:37:50 123 123 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:14 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 9.507 2.45389 3.55561 21.83 1472.01 1016.760 0.45 0.45 9.454 2.48877 3.61175 22.20 1472.26 1017.060 0.75 0.75 9.435 2.52800 3.67071 22.60 1472.68 1017.372 1.05 1.05 9.448 2.65887 3.85923 23.88 1474.29 1018.368 1.35 1.35 9.472 2.67713 3.88308 24.04 1474.58 1018.495 1.65 1.65 9.488 2.77684 4.02581 25.02 1475.84 1019.254 1.95 1.95 9.489 2.84658 4.12683 25.71 1476.69 1019.794 2.25 2.25 9.481 2.89583 4.19920 26.21 1477.26 1020.184 2.55 2.55 9.476 2.91647 4.22974 26.42 1477.51 1020.349 2.85 2.85 9.477 2.93036 4.24979 26.55 1477.68 1020.458 3.15 3.15 9.484 2.94185 4.26552 26.66 1477.85 1020.544 3.45 3.45 9.509 2.96182 4.29135 26.84 1478.17 1020.682 3.75 3.75 9.519 2.97612 4.31087 26.98 1478.37 1020.788 4.05 4.05 9.520 2.97915 4.31508 27.01 1478.42 1020.812 4.35 4.35 9.518 2.98103 4.31813 27.03 1478.44 1020.830 4.65 4.65 9.523 2.98321 4.32066 27.05 1478.48 1020.844 4.95 4.95 9.523 2.98888 4.32877 27.10 1478.56 1020.889 5.25 5.25 9.534 2.99349 4.33417 27.14 1478.65 1020.919 5.55 5.55 9.537 2.99809 4.34041 27.19 1478.72 1020.954 5.85 5.85 9.539 3.00101 4.34439 27.21 1478.76 1020.976 6.15 6.15 9.543 3.00367 4.34769 27.24 1478.81 1020.995 6.45 6.45 9.547 3.01405 4.36224 27.34 1478.96 1021.075 6.75 6.75 9.556 3.02341 4.37467 27.42 1479.10 1021.143 7.05 7.05 9.560 3.02845 4.38147 27.47 1479.18 1021.180 7.35 7.34 9.550 3.03193 4.38775 27.51 1479.20 1021.216 7.65 7.64 9.513 3.03301 4.39399 27.55 1479.11 1021.253 7.95 7.94 9.475 3.03060 4.39531 27.56 1478.98 1021.264 8.25 8.24 9.464 3.02712 4.39173 27.53 1478.91 1021.247 8.55 8.54 9.427 3.02776 4.39732 27.57 1478.82 1021.280 8.85 8.84 9.395 3.03455 4.41135 27.66 1478.82 1021.359 9.15 9.14 9.381 3.04295 4.42539 27.75 1478.89 1021.437 9.45 9.44 9.375 3.04825 4.43378 27.81 1478.94 1021.484 9.75 9.74 9.371 3.05655 4.44637 27.90 1479.04 1021.554 10.05 10.04 9.363 3.05960 4.45189 27.93 1479.06 1021.585 10.35 10.34 9.352 3.06187 4.45664 27.97 1479.06 1021.613 10.65 10.64 9.334 3.06454 4.46278 28.01 1479.05 1021.648 10.95 10.94 9.322 3.06441 4.46417 28.01 1479.02 1021.658 11.25 11.24 9.305 3.06468 4.46675 28.03 1478.98 1021.674 11.55 11.54 9.279 3.06432 4.46965 28.05 1478.91 1021.692 11.85 11.84 9.247 3.06465 4.47438 28.08 1478.83 1021.721 12.15 12.13 9.213 3.06369 4.47734 28.09 1478.73 1021.740 12.45 12.43 9.179 3.06299 4.48085 28.11 1478.63 1021.762 12.75 12.73 9.150 3.06226 4.48349 28.13 1478.54 1021.779 13.05 13.03 9.132 3.06191 4.48534 28.14 1478.49 1021.792 13.35 13.33 9.117 3.06158 4.48688 28.15 1478.45 1021.802 13.65 13.63 9.100 3.06156 4.48908 28.16 1478.41 1021.816 13.95 13.93 9.083 3.06083 4.49029 28.17 1478.36 1021.825 14.25 14.23 9.064 3.06031 4.49197 28.18 1478.30 1021.836 14.55 14.53 9.045 3.05954 4.49337 28.18 1478.25 1021.846 14.85 14.83 9.023 3.05828 4.49444 28.19 1478.17 1021.854 15.15 15.13 9.009 3.05732 4.49492 28.19 1478.13 1021.859 15.45 15.43 8.994 3.05715 4.49658 28.20 1478.09 1021.870 15.75 15.73 8.980 3.05617 4.49701 28.20 1478.04 1021.874 16.05 16.02 8.964 3.05619 4.49914 28.21 1478.00 1021.887 16.35 16.32 8.951 3.05541 4.49974 28.21 1477.96 1021.893 16.65 16.62 8.941 3.05484 4.50021 28.22 1477.93 1021.897 16.95 16.92 8.930 3.05424 4.50084 28.22 1477.90 1021.902 17.25 17.22 8.915 3.05347 4.50168 28.22 1477.85 1021.909 17.55 17.52 8.903 3.05353 4.50330 28.23 1477.82 1021.919 17.85 17.82 8.894 3.05359 4.50466 28.24 1477.80 1021.928 18.15 18.12 8.889 3.05370 4.50550 28.25 1477.79 1021.934 18.45 18.42 8.882 3.05320 4.50568 28.25 1477.77 1021.937 18.75 18.72 8.874 3.05321 4.50673 28.25 1477.76 1021.944 19.05 19.02 8.868 3.05337 4.50771 28.26 1477.75 1021.951 19.35 19.32 8.866 3.05358 4.50838 28.26 1477.75 1021.956 19.65 19.62 8.863 3.05340 4.50844 28.26 1477.74 1021.958 19.95 19.91 8.858 3.05414 4.51022 28.27 1477.74 1021.969 20.25 20.21 8.856 3.05495 4.51173 28.28 1477.75 1021.979 20.55 20.51 8.850 3.05412 4.51129 28.28 1477.73 1021.978 20.85 20.81 8.842 3.05465 4.51314 28.29 1477.72 1021.989 21.15 21.11 8.834 3.05452 4.51395 28.30 1477.70 1021.995 21.45 21.41 8.819 3.05422 4.51558 28.30 1477.66 1022.006 21.75 21.71 8.798 3.05397 4.51795 28.32 1477.60 1022.021 22.05 22.01 8.778 3.05443 4.52135 28.34 1477.56 1022.042 22.35 22.31 8.753 3.05485 4.52530 28.36 1477.50 1022.066 22.65 22.61 8.717 3.05509 4.53043 28.39 1477.41 1022.096 22.95 22.91 8.696 3.05575 4.53424 28.42 1477.36 1022.119 23.25 23.21 8.682 3.05689 4.53789 28.44 1477.34 1022.141 23.55 23.51 8.660 3.05940 4.54452 28.48 1477.31 1022.179 23.85 23.80 8.655 3.06286 4.55041 28.52 1477.35 1022.212 24.15 24.10 8.649 3.06759 4.55817 28.58 1477.40 1022.255 24.45 24.40 8.648 3.08077 4.57788 28.71 1477.57 1022.364 24.75 24.70 8.647 3.08783 4.58854 28.79 1477.66 1022.423 25.05 25.00 8.647 3.09114 4.59351 28.82 1477.70 1022.451 25.35 25.30 8.649 3.09257 4.59538 28.83 1477.73 1022.462 25.65 25.60 8.649 3.09503 4.59901 28.86 1477.77 1022.483 25.95 25.90 8.646 3.09863 4.60470 28.90 1477.81 1022.516 26.25 26.20 8.649 3.10027 4.60681 28.91 1477.84 1022.528 26.55 26.50 8.654 3.10094 4.60703 28.92 1477.87 1022.530 26.85 26.80 8.659 3.10204 4.60805 28.92 1477.90 1022.537 27.15 27.09 8.662 3.10673 4.61459 28.97 1477.97 1022.574 27.45 27.39 8.664 3.10947 4.61842 29.00 1478.02 1022.596 27.75 27.69 8.669 3.11302 4.62302 29.03 1478.08 1022.622 28.05 27.99 8.670 3.11545 4.62641 29.05 1478.12 1022.641 28.35 28.29 8.674 3.11788 4.62953 29.07 1478.17 1022.659 28.65 28.59 8.676 3.11841 4.62996 29.08 1478.19 1022.663 28.95 28.89 8.678 3.11994 4.63207 29.09 1478.21 1022.676 29.25 29.19 8.685 3.12222 4.63450 29.11 1478.27 1022.690 29.55 29.49 8.689 3.12324 4.63545 29.12 1478.29 1022.696 29.85 29.79 8.688 3.12383 4.63646 29.12 1478.30 1022.703 30.15 30.08 8.686 3.12456 4.63772 29.13 1478.32 1022.711 30.45 30.38 8.688 3.12630 4.64012 29.15 1478.35 1022.725 30.75 30.68 8.688 3.13013 4.64572 29.19 1478.40 1022.757 31.05 30.98 8.688 3.13359 4.65094 29.22 1478.45 1022.787 31.35 31.28 8.689 3.13402 4.65144 29.23 1478.46 1022.791 31.65 31.58 8.685 3.13394 4.65181 29.23 1478.45 1022.794 31.95 31.88 8.681 3.13400 4.65246 29.23 1478.45 1022.799 32.25 32.18 8.679 3.13348 4.65194 29.23 1478.44 1022.798 32.55 32.48 8.678 3.13344 4.65205 29.23 1478.44 1022.799 32.85 32.78 8.676 3.13273 4.65135 29.22 1478.43 1022.797 33.15 33.07 8.673 3.13282 4.65181 29.23 1478.43 1022.801 33.45 33.37 8.670 3.13352 4.65331 29.24 1478.44 1022.811 33.75 33.67 8.668 3.13466 4.65521 29.25 1478.45 1022.822 34.05 33.97 8.667 3.13492 4.65581 29.25 1478.45 1022.827 34.35 34.27 8.666 3.13472 4.65556 29.25 1478.46 1022.827 34.65 34.57 8.668 3.13594 4.65708 29.26 1478.48 1022.836 34.95 34.87 8.670 3.13762 4.65941 29.28 1478.51 1022.850 35.25 35.17 8.671 3.14157 4.66505 29.32 1478.57 1022.882 35.55 35.47 8.682 3.14478 4.66840 29.34 1478.64 1022.901 35.85 35.77 8.684 3.14804 4.67288 29.37 1478.70 1022.927 36.15 36.06 8.685 3.15014 4.67586 29.39 1478.73 1022.944 36.45 36.36 8.708 3.15365 4.67795 29.41 1478.84 1022.956 36.74 36.65 8.711 3.15412 4.67813 29.41 1478.86 1022.958