*2026/01/16 10:37:54.49 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 21:00:04.000 END TIME : UTC 2025/05/27 21:00:27.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 119 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.57 2 Depth metres 0.15 35.43 3 Temperature 'deg C (ITS90)' 10.512 12.877 4 Conductivity S/m 2.83962 3.55951 5 Conductance:Specific S/m 3.74948 4.92615 6 Salinity PSS-78 23.4 31.38 7 Speed:Sound m/s 1486.03 1490.98 8 Density kg/m^3 1017.45 1024.205 $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 : 157 LATITUDE : 49 37.73480 N ! (deg min) LONGITUDE : 126 29.66220 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_210004 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 119 119 MERGEHDR 1.3 2026/01/16 10:35:44 119 119 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 119 119 CALIB 12.1 2026/01/16 10:37:18 119 119 CLEAN 5.3 2026/01/16 10:37:54 119 119 $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 12.867 2.83962 3.74948 23.40 1486.03 1017.450 0.45 0.45 12.877 2.84249 3.75225 23.42 1486.10 1017.465 0.75 0.75 12.861 2.87612 3.79823 23.73 1486.42 1017.712 1.05 1.05 12.795 2.90437 3.84230 24.03 1486.55 1017.956 1.35 1.35 12.745 2.99200 3.96349 24.87 1487.36 1018.610 1.65 1.65 12.714 3.04210 4.03308 25.35 1487.83 1018.987 1.95 1.95 12.628 3.08823 4.10358 25.83 1488.11 1019.377 2.25 2.25 12.491 3.16028 4.21475 26.59 1488.54 1019.993 2.55 2.55 12.388 3.22790 4.31679 27.30 1489.02 1020.557 2.85 2.85 12.294 3.31680 4.44689 28.20 1489.78 1021.275 3.15 3.15 12.190 3.39342 4.56221 29.00 1490.38 1021.916 3.45 3.45 12.099 3.45351 4.65443 29.64 1490.83 1022.431 3.75 3.75 12.017 3.48331 4.70496 29.99 1490.97 1022.718 4.05 4.05 11.974 3.49309 4.72376 30.12 1490.98 1022.827 4.35 4.35 11.939 3.50091 4.73880 30.22 1490.98 1022.914 4.65 4.65 11.901 3.50554 4.74995 30.30 1490.95 1022.980 4.95 4.94 11.864 3.50827 4.75840 30.36 1490.89 1023.032 5.25 5.24 11.837 3.51082 4.76541 30.40 1490.86 1023.075 5.55 5.54 11.794 3.51517 4.77684 30.48 1490.80 1023.143 5.85 5.84 11.749 3.51706 4.78528 30.53 1490.72 1023.195 6.15 6.14 11.718 3.51784 4.79037 30.57 1490.65 1023.228 6.45 6.44 11.685 3.51941 4.79676 30.61 1490.60 1023.267 6.75 6.74 11.649 3.52151 4.80444 30.66 1490.53 1023.314 7.05 7.04 11.611 3.52345 4.81206 30.71 1490.46 1023.361 7.35 7.34 11.582 3.52725 4.82106 30.77 1490.44 1023.415 7.65 7.63 11.543 3.52876 4.82819 30.82 1490.37 1023.459 7.95 7.93 11.520 3.53039 4.83356 30.85 1490.33 1023.492 8.25 8.23 11.515 3.53647 4.84244 30.91 1490.40 1023.543 8.55 8.53 11.510 3.54029 4.84843 30.96 1490.43 1023.578 8.85 8.83 11.504 3.54504 4.85574 31.01 1490.48 1023.620 9.15 9.13 11.510 3.54637 4.85669 31.01 1490.51 1023.626 9.45 9.43 11.517 3.54662 4.85609 31.01 1490.54 1023.623 9.75 9.73 11.522 3.54919 4.85893 31.03 1490.59 1023.639 10.05 10.02 11.522 3.55260 4.86365 31.06 1490.63 1023.667 10.35 10.32 11.526 3.55440 4.86552 31.08 1490.67 1023.678 10.65 10.62 11.528 3.55520 4.86645 31.08 1490.68 1023.684 10.95 10.92 11.526 3.55560 4.86728 31.09 1490.69 1023.690 11.25 11.22 11.517 3.55571 4.86862 31.10 1490.67 1023.700 11.55 11.52 11.502 3.55439 4.86880 31.10 1490.62 1023.703 11.85 11.82 11.471 3.55453 4.87306 31.12 1490.56 1023.731 12.15 12.12 11.438 3.55013 4.87142 31.11 1490.43 1023.726 12.45 12.41 11.419 3.54590 4.86825 31.08 1490.33 1023.712 12.75 12.71 11.407 3.54094 4.86293 31.05 1490.25 1023.685 13.05 13.01 11.399 3.54457 4.86909 31.09 1490.28 1023.721 13.35 13.31 11.366 3.54765 4.87770 31.15 1490.24 1023.773 13.65 13.61 11.350 3.54867 4.88119 31.17 1490.21 1023.795 13.95 13.91 11.346 3.54877 4.88187 31.17 1490.21 1023.800 14.25 14.21 11.342 3.55172 4.88653 31.21 1490.24 1023.827 14.55 14.51 11.348 3.55353 4.88827 31.22 1490.28 1023.838 14.85 14.80 11.360 3.55492 4.88850 31.22 1490.33 1023.839 15.15 15.10 11.374 3.55721 4.88980 31.23 1490.40 1023.846 15.45 15.40 11.382 3.55782 4.88959 31.23 1490.43 1023.846 15.75 15.70 11.386 3.55769 4.88887 31.23 1490.44 1023.842 16.05 16.00 11.385 3.55783 4.88919 31.23 1490.45 1023.846 16.35 16.30 11.383 3.55838 4.89023 31.24 1490.45 1023.853 16.65 16.60 11.379 3.55810 4.89037 31.24 1490.44 1023.855 16.95 16.89 11.376 3.55845 4.89122 31.24 1490.44 1023.861 17.25 17.19 11.374 3.55833 4.89126 31.24 1490.44 1023.863 17.55 17.49 11.370 3.55754 4.89081 31.24 1490.43 1023.862 17.85 17.79 11.367 3.55870 4.89274 31.25 1490.44 1023.874 18.15 18.09 11.366 3.55832 4.89230 31.25 1490.44 1023.873 18.45 18.39 11.363 3.55859 4.89320 31.25 1490.44 1023.880 18.75 18.69 11.360 3.55859 4.89358 31.26 1490.44 1023.883 19.05 18.99 11.358 3.55857 4.89373 31.26 1490.44 1023.886 19.35 19.28 11.354 3.55881 4.89466 31.26 1490.43 1023.892 19.65 19.58 11.352 3.55823 4.89411 31.26 1490.43 1023.891 19.95 19.88 11.351 3.55837 4.89441 31.26 1490.43 1023.894 20.25 20.18 11.348 3.55900 4.89567 31.27 1490.44 1023.902 20.55 20.48 11.343 3.55951 4.89718 31.28 1490.43 1023.912 20.85 20.78 11.332 3.55888 4.89770 31.28 1490.40 1023.918 21.15 21.08 11.321 3.55615 4.89542 31.26 1490.35 1023.907 21.45 21.37 11.305 3.55396 4.89453 31.26 1490.29 1023.905 21.75 21.67 11.284 3.55134 4.89376 31.25 1490.21 1023.904 22.05 21.97 11.264 3.55041 4.89518 31.26 1490.15 1023.915 22.35 22.27 11.247 3.54918 4.89577 31.26 1490.10 1023.921 22.65 22.57 11.239 3.54856 4.89598 31.26 1490.08 1023.924 22.95 22.87 11.231 3.54839 4.89684 31.26 1490.06 1023.931 23.25 23.17 11.224 3.54699 4.89597 31.26 1490.03 1023.928 23.55 23.47 11.219 3.54744 4.89724 31.26 1490.03 1023.937 23.85 23.76 11.211 3.54721 4.89795 31.27 1490.01 1023.943 24.15 24.06 11.204 3.54697 4.89857 31.27 1490.00 1023.948 24.45 24.36 11.196 3.54559 4.89777 31.26 1489.96 1023.945 24.75 24.66 11.191 3.54555 4.89845 31.27 1489.96 1023.951 25.05 24.96 11.184 3.54476 4.89828 31.27 1489.93 1023.952 25.35 25.26 11.175 3.54470 4.89936 31.27 1489.92 1023.960 25.65 25.56 11.153 3.54303 4.90001 31.28 1489.85 1023.967 25.95 25.85 11.113 3.53719 4.89745 31.25 1489.68 1023.957 26.25 26.15 11.073 3.53376 4.89803 31.25 1489.55 1023.965 26.55 26.45 11.032 3.52891 4.89693 31.24 1489.39 1023.964 26.85 26.75 10.994 3.52788 4.90068 31.26 1489.29 1023.989 27.15 27.05 10.952 3.52597 4.90374 31.28 1489.16 1024.011 27.45 27.35 10.919 3.52427 4.90592 31.29 1489.06 1024.027 27.75 27.65 10.892 3.52382 4.90890 31.31 1489.00 1024.047 28.05 27.94 10.862 3.52080 4.90883 31.30 1488.89 1024.051 28.35 28.24 10.830 3.51775 4.90893 31.30 1488.78 1024.055 28.65 28.54 10.809 3.51624 4.90968 31.30 1488.71 1024.062 28.95 28.84 10.780 3.51485 4.91177 31.32 1488.63 1024.077 29.25 29.14 10.766 3.51371 4.91206 31.32 1488.58 1024.081 29.55 29.44 10.754 3.51292 4.91258 31.32 1488.55 1024.086 29.85 29.74 10.747 3.51245 4.91290 31.32 1488.53 1024.090 30.15 30.04 10.741 3.51119 4.91200 31.31 1488.50 1024.087 30.45 30.33 10.736 3.51296 4.91512 31.33 1488.52 1024.105 30.75 30.63 10.735 3.51342 4.91599 31.34 1488.52 1024.112 31.05 30.93 10.742 3.51586 4.91844 31.36 1488.58 1024.126 31.35 31.23 10.752 3.51834 4.92051 31.37 1488.64 1024.138 31.65 31.53 10.762 3.51918 4.92033 31.37 1488.67 1024.137 31.95 31.83 10.766 3.51909 4.91966 31.37 1488.69 1024.134 32.25 32.13 10.768 3.52012 4.92077 31.38 1488.71 1024.142 32.55 32.42 10.771 3.51992 4.92011 31.37 1488.72 1024.139 32.85 32.72 10.775 3.51963 4.91909 31.36 1488.73 1024.134 33.15 33.02 10.776 3.52003 4.91956 31.37 1488.74 1024.138 33.45 33.32 10.774 3.51938 4.91887 31.36 1488.74 1024.136 33.75 33.62 10.771 3.51933 4.91929 31.37 1488.73 1024.140 34.05 33.92 10.768 3.51647 4.91572 31.34 1488.70 1024.121 34.35 34.22 10.743 3.51176 4.91254 31.31 1488.58 1024.107 34.65 34.51 10.696 3.50623 4.91128 31.30 1488.40 1024.105 34.95 34.81 10.640 3.50099 4.91158 31.29 1488.20 1024.113 35.25 35.11 10.533 3.49946 4.92431 31.37 1487.92 1024.192 35.57 35.43 10.512 3.49875 4.92615 31.38 1487.86 1024.205