*2026/01/16 09:57:54.52 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 19:17:33.000 END TIME : UTC 2024/09/04 19:18:00.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 138 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.4 2 Depth metres 0.15 41.21 3 Temperature 'deg C (ITS90)' 9.477 17.972 4 Conductivity S/m 3.492 3.98779 5 Conductance:Specific S/m 4.63996 5.06578 6 Salinity PSS-78 29.93 32.23 7 Speed:Sound m/s 1485.23 1509.96 8 Density kg/m^3 1021.404 1025.062 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 240 LATITUDE : 48 56.68260 N ! (deg min) LONGITUDE : 125 19.20170 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_191733 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 138 138 MERGEHDR 1.3 2026/01/16 09:54:05 138 138 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 138 138 CALIB 12.1 2026/01/16 09:56:55 138 138 CLEAN 5.3 2026/01/16 09:57:54 138 138 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 09:57:46 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 17.972 3.98779 4.63996 29.93 1509.96 1021.404 0.45 0.45 17.469 3.95764 4.65944 30.05 1508.59 1021.613 0.75 0.75 17.261 3.94304 4.66506 30.08 1508.01 1021.686 1.05 1.05 17.249 3.94658 4.67061 30.12 1508.02 1021.720 1.35 1.35 17.222 3.94641 4.67343 30.14 1507.96 1021.742 1.65 1.65 17.161 3.93723 4.66923 30.10 1507.75 1021.732 1.95 1.95 16.980 3.93548 4.68729 30.23 1507.34 1021.867 2.25 2.24 16.807 3.93391 4.70480 30.34 1506.95 1021.997 2.55 2.54 16.622 3.92894 4.71978 30.44 1506.50 1022.116 2.85 2.84 16.415 3.92702 4.74102 30.58 1506.03 1022.272 3.15 3.14 16.173 3.91228 4.75100 30.64 1505.35 1022.371 3.45 3.44 16.022 3.89557 4.74820 30.61 1504.85 1022.384 3.75 3.74 15.874 3.88648 4.75420 30.64 1504.43 1022.444 4.05 4.04 15.622 3.87482 4.76941 30.74 1503.75 1022.572 4.35 4.34 15.357 3.86338 4.78649 30.84 1503.04 1022.712 4.65 4.64 15.075 3.85821 4.81373 31.02 1502.36 1022.909 4.95 4.94 14.857 3.85091 4.83086 31.12 1501.79 1023.039 5.25 5.24 14.559 3.83210 4.84348 31.19 1500.92 1023.156 5.55 5.53 14.336 3.80692 4.83897 31.14 1500.14 1023.166 5.85 5.83 14.116 3.79121 4.84613 31.18 1499.47 1023.239 6.15 6.13 13.960 3.77380 4.84318 31.14 1498.92 1023.246 6.45 6.43 13.659 3.75558 4.85737 31.22 1498.02 1023.368 6.75 6.73 13.489 3.74550 4.86568 31.27 1497.52 1023.438 7.05 7.03 13.329 3.73012 4.86588 31.25 1496.98 1023.461 7.35 7.33 13.155 3.72454 4.88075 31.35 1496.51 1023.567 7.65 7.63 12.980 3.70592 4.87883 31.32 1495.89 1023.579 7.95 7.93 12.870 3.69619 4.88009 31.31 1495.52 1023.601 8.25 8.22 12.762 3.68734 4.88235 31.32 1495.17 1023.628 8.55 8.52 12.583 3.68574 4.90353 31.45 1494.73 1023.767 8.85 8.82 12.376 3.67747 4.91953 31.55 1494.14 1023.880 9.15 9.12 12.230 3.65322 4.90624 31.44 1493.52 1023.825 9.45 9.42 12.100 3.64417 4.91127 31.46 1493.10 1023.868 9.75 9.72 11.983 3.63702 4.91709 31.49 1492.74 1023.914 10.05 10.02 11.878 3.63168 4.92387 31.53 1492.43 1023.963 10.35 10.31 11.794 3.62820 4.93037 31.57 1492.18 1024.009 10.65 10.61 11.733 3.62177 4.92991 31.56 1491.96 1024.014 10.95 10.91 11.674 3.61912 4.93422 31.58 1491.79 1024.045 11.25 11.21 11.618 3.61403 4.93483 31.58 1491.60 1024.055 11.55 11.51 11.567 3.61295 4.94017 31.61 1491.47 1024.090 11.85 11.81 11.512 3.61106 4.94510 31.64 1491.31 1024.124 12.15 12.11 11.467 3.60980 4.94946 31.67 1491.19 1024.154 12.45 12.41 11.432 3.60653 4.94974 31.66 1491.07 1024.160 12.75 12.70 11.392 3.60430 4.95201 31.68 1490.96 1024.177 13.05 13.00 11.343 3.60134 4.95462 31.69 1490.80 1024.198 13.35 13.30 11.285 3.59699 4.95655 31.70 1490.61 1024.215 13.65 13.60 11.244 3.59459 4.95888 31.71 1490.49 1024.233 13.95 13.90 11.207 3.59135 4.95950 31.71 1490.36 1024.241 14.25 14.20 11.171 3.58993 4.96250 31.73 1490.26 1024.262 14.55 14.50 11.150 3.58855 4.96342 31.73 1490.20 1024.270 14.85 14.79 11.130 3.58720 4.96428 31.73 1490.14 1024.278 15.15 15.09 11.107 3.58622 4.96609 31.74 1490.07 1024.291 15.45 15.39 11.088 3.58512 4.96716 31.75 1490.02 1024.300 15.75 15.69 11.058 3.58332 4.96878 31.76 1489.93 1024.313 16.05 15.99 11.031 3.58216 4.97094 31.77 1489.85 1024.328 16.35 16.29 11.010 3.58095 4.97215 31.78 1489.79 1024.338 16.65 16.59 10.960 3.57804 4.97501 31.79 1489.64 1024.359 16.95 16.88 10.909 3.57331 4.97557 31.79 1489.45 1024.368 17.25 17.18 10.862 3.56886 4.97578 31.78 1489.29 1024.374 17.55 17.48 10.807 3.56638 4.98001 31.81 1489.13 1024.403 17.85 17.78 10.752 3.56402 4.98441 31.83 1488.97 1024.433 18.15 18.08 10.711 3.56296 4.98860 31.86 1488.86 1024.461 18.45 18.38 10.658 3.55973 4.99144 31.87 1488.69 1024.482 18.75 18.67 10.628 3.55483 4.98879 31.85 1488.56 1024.471 19.05 18.97 10.591 3.55338 4.99201 31.87 1488.45 1024.493 19.35 19.27 10.558 3.55250 4.99531 31.88 1488.37 1024.515 19.65 19.57 10.517 3.55088 4.99880 31.90 1488.25 1024.539 19.95 19.87 10.493 3.54869 4.99907 31.90 1488.17 1024.543 20.25 20.17 10.479 3.54838 5.00065 31.91 1488.13 1024.554 20.55 20.47 10.451 3.54612 5.00142 31.91 1488.04 1024.562 20.85 20.76 10.435 3.54502 5.00212 31.92 1487.99 1024.568 21.15 21.06 10.425 3.54539 5.00406 31.93 1487.97 1024.581 21.45 21.36 10.415 3.54451 5.00419 31.93 1487.94 1024.583 21.75 21.66 10.409 3.54475 5.00540 31.94 1487.94 1024.592 22.05 21.96 10.403 3.54452 5.00599 31.94 1487.92 1024.597 22.35 22.26 10.398 3.54471 5.00694 31.95 1487.92 1024.604 22.65 22.56 10.398 3.54525 5.00768 31.95 1487.93 1024.609 22.95 22.85 10.391 3.54361 5.00638 31.94 1487.90 1024.604 23.25 23.15 10.378 3.54246 5.00655 31.94 1487.85 1024.607 23.55 23.45 10.373 3.54261 5.00747 31.95 1487.85 1024.613 23.85 23.75 10.370 3.54257 5.00792 31.95 1487.84 1024.617 24.15 24.05 10.368 3.54230 5.00775 31.95 1487.84 1024.618 24.45 24.35 10.364 3.54234 5.00837 31.95 1487.84 1024.623 24.75 24.64 10.367 3.54230 5.00795 31.95 1487.85 1024.622 25.05 24.94 10.357 3.54188 5.00874 31.95 1487.82 1024.628 25.35 25.24 10.357 3.54173 5.00847 31.95 1487.83 1024.628 25.65 25.54 10.330 3.53921 5.00875 31.95 1487.73 1024.632 25.95 25.84 10.305 3.53801 5.01066 31.96 1487.66 1024.646 26.25 26.14 10.288 3.53693 5.01150 31.96 1487.61 1024.653 26.55 26.44 10.279 3.53596 5.01138 31.96 1487.58 1024.654 26.85 26.73 10.262 3.53475 5.01208 31.96 1487.52 1024.661 27.15 27.03 10.224 3.53244 5.01433 31.97 1487.40 1024.677 27.45 27.33 10.161 3.53030 5.02018 32.01 1487.22 1024.715 27.75 27.63 10.150 3.52905 5.01994 32.00 1487.19 1024.715 28.05 27.93 10.108 3.52572 5.02131 32.01 1487.04 1024.727 28.35 28.23 10.084 3.52339 5.02138 32.01 1486.96 1024.730 28.65 28.52 10.057 3.52278 5.02430 32.02 1486.89 1024.749 28.95 28.82 10.045 3.52248 5.02572 32.03 1486.86 1024.759 29.25 29.12 10.041 3.52168 5.02504 32.03 1486.84 1024.757 29.55 29.42 10.034 3.52162 5.02594 32.03 1486.83 1024.764 29.85 29.72 10.027 3.52116 5.02630 32.03 1486.81 1024.767 30.15 30.02 10.022 3.52166 5.02775 32.04 1486.81 1024.777 30.45 30.32 10.016 3.52078 5.02742 32.04 1486.79 1024.777 30.75 30.61 10.007 3.52017 5.02784 32.04 1486.76 1024.781 31.05 30.91 9.996 3.51903 5.02779 32.04 1486.72 1024.783 31.35 31.21 9.993 3.52028 5.02996 32.05 1486.74 1024.796 31.65 31.51 9.973 3.51741 5.02871 32.04 1486.66 1024.792 31.95 31.81 9.960 3.51793 5.03136 32.06 1486.63 1024.808 32.25 32.11 9.943 3.51608 5.03115 32.06 1486.57 1024.810 32.55 32.40 9.929 3.51474 5.03127 32.05 1486.52 1024.812 32.85 32.70 9.914 3.51493 5.03366 32.07 1486.49 1024.828 33.15 33.00 9.905 3.51469 5.03472 32.07 1486.47 1024.836 33.45 33.30 9.872 3.51277 5.03672 32.08 1486.37 1024.850 33.75 33.60 9.858 3.51204 5.03761 32.09 1486.33 1024.857 34.05 33.90 9.830 3.50947 5.03795 32.09 1486.23 1024.862 34.35 34.19 9.807 3.50769 5.03880 32.09 1486.15 1024.869 34.65 34.49 9.791 3.50780 5.04125 32.11 1486.12 1024.885 34.95 34.79 9.778 3.50654 5.04127 32.10 1486.08 1024.887 35.25 35.09 9.767 3.50675 5.04318 32.12 1486.06 1024.899 35.55 35.39 9.762 3.50510 5.04159 32.10 1486.03 1024.892 35.85 35.69 9.749 3.50584 5.04456 32.12 1486.01 1024.911 36.15 35.99 9.729 3.50491 5.04604 32.13 1485.95 1024.921 36.45 36.28 9.723 3.50468 5.04666 32.13 1485.94 1024.926 36.75 36.58 9.705 3.50385 5.04809 32.14 1485.88 1024.936 37.05 36.88 9.702 3.50243 5.04644 32.13 1485.86 1024.929 37.35 37.18 9.696 3.50260 5.04762 32.14 1485.85 1024.937 37.65 37.48 9.697 3.50328 5.04846 32.14 1485.87 1024.943 37.95 37.78 9.686 3.50150 5.04741 32.13 1485.83 1024.939 38.25 38.07 9.666 3.50004 5.04826 32.14 1485.76 1024.946 38.55 38.37 9.644 3.49952 5.05072 32.15 1485.70 1024.962 38.85 38.67 9.637 3.49854 5.05035 32.15 1485.68 1024.961 39.15 38.97 9.611 3.49797 5.05324 32.16 1485.61 1024.980 39.45 39.27 9.558 3.49458 5.05617 32.18 1485.44 1025.000 39.75 39.57 9.530 3.49540 5.06136 32.21 1485.38 1025.032 40.05 39.86 9.525 3.49319 5.05895 32.19 1485.34 1025.020 40.35 40.16 9.499 3.49283 5.06226 32.21 1485.28 1025.041 40.65 40.46 9.484 3.49380 5.06578 32.23 1485.26 1025.062 40.95 40.76 9.487 3.49206 5.06284 32.21 1485.25 1025.047 41.40 41.21 9.477 3.49200 5.06426 32.22 1485.23 1025.058