*2026/01/16 09:57:47.53 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/01 20:30:53.000 END TIME : UTC 2024/02/01 20:31:13.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 102 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.57 2 Depth metres 0.15 30.54 3 Temperature 'deg C (ITS90)' 8.403 11.135 4 Conductivity S/m 0.23883 3.47945 5 Conductance:Specific S/m 0.3575 4.85955 6 Salinity PSS-78 1.84 30.89 7 Speed:Sound m/s 1443.15 1488.77 8 Density kg/m^3 1001.28 1023.829 $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 : 33 LATITUDE : 50 7.86270 N ! (deg min) LONGITUDE : 127 17.06790 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240201_203053 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 102 102 MERGEHDR 1.3 2026/01/16 09:53:45 102 102 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:13 102 102 CALIB 12.1 2026/01/16 09:56:45 102 102 CLEAN 5.3 2026/01/16 09:57:47 102 102 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 8.403 0.23883 0.35750 1.84 1443.15 1001.280 0.45 0.46 8.491 0.24941 0.37235 1.92 1443.61 1001.340 0.75 0.76 8.496 0.26501 0.39557 2.05 1443.80 1001.441 1.05 1.07 8.688 0.35885 0.53262 2.81 1445.54 1002.026 1.35 1.37 8.842 0.51733 0.76433 4.14 1447.81 1003.051 1.65 1.68 8.916 0.78115 1.15159 6.42 1450.93 1004.829 1.95 1.98 8.916 1.01253 1.49272 8.48 1453.47 1006.444 2.25 2.29 8.935 1.24985 1.84152 10.64 1456.20 1008.127 2.55 2.59 9.027 1.49091 2.19078 12.85 1459.27 1009.839 2.85 2.89 9.131 1.54781 2.26747 13.34 1460.28 1010.214 3.15 3.19 9.182 1.68630 2.46663 14.63 1462.05 1011.207 3.45 3.50 9.239 1.79652 2.62349 15.64 1463.52 1011.994 3.75 3.80 9.324 1.91332 2.78712 16.71 1465.15 1012.819 4.05 4.10 9.363 2.01592 2.93331 17.68 1466.47 1013.564 4.35 4.40 9.386 2.04626 2.97541 17.95 1466.91 1013.779 4.65 4.70 9.412 2.19556 3.19015 19.38 1468.74 1014.884 4.95 5.00 9.442 2.28791 3.32140 20.25 1469.92 1015.564 5.25 5.31 9.480 2.29915 3.33402 20.34 1470.18 1015.628 5.55 5.61 9.547 2.43881 3.52966 21.66 1472.04 1016.645 5.85 5.91 9.598 2.49907 3.61153 22.21 1472.91 1017.072 6.15 6.21 9.591 2.54851 3.68379 22.70 1473.48 1017.454 6.45 6.51 9.638 2.66182 3.84236 23.78 1474.97 1018.290 6.75 6.81 9.706 2.77025 3.99108 24.80 1476.47 1019.076 7.05 7.11 9.750 2.80376 4.03417 25.10 1477.00 1019.304 7.35 7.41 9.788 2.87846 4.13716 25.81 1478.01 1019.853 7.65 7.71 9.862 2.94941 4.23013 26.46 1479.07 1020.348 7.95 8.01 9.912 2.98302 4.27218 26.75 1479.62 1020.572 8.25 8.31 9.925 3.03437 4.34415 27.25 1480.28 1020.960 8.55 8.61 9.932 3.06471 4.38665 27.55 1480.67 1021.190 8.85 8.91 9.994 3.14019 4.48678 28.25 1481.75 1021.729 9.15 9.21 10.018 3.15440 4.50395 28.37 1481.99 1021.822 9.45 9.50 9.993 3.17752 4.54027 28.62 1482.21 1022.022 9.75 9.80 9.942 3.18131 4.55225 28.70 1482.12 1022.092 10.05 10.10 9.932 3.20083 4.58154 28.90 1482.34 1022.253 10.35 10.40 9.908 3.19714 4.57932 28.88 1482.23 1022.244 10.65 10.70 9.963 3.21756 4.60133 29.04 1482.63 1022.361 10.95 11.00 10.238 3.25732 4.62192 29.22 1483.85 1022.455 11.25 11.30 10.294 3.30621 4.68377 29.66 1484.59 1022.790 11.55 11.60 10.352 3.31911 4.69435 29.74 1484.90 1022.844 11.85 11.90 10.410 3.32808 4.69930 29.78 1485.17 1022.868 12.15 12.20 10.475 3.34067 4.70854 29.85 1485.49 1022.915 12.45 12.50 10.757 3.39624 4.74903 30.17 1486.89 1023.116 12.75 12.79 10.919 3.41600 4.75516 30.23 1487.55 1023.137 13.05 13.09 10.957 3.41627 4.75056 30.20 1487.65 1023.110 13.35 13.39 10.952 3.42442 4.76246 30.29 1487.74 1023.176 13.65 13.69 10.962 3.42871 4.76716 30.32 1487.82 1023.203 13.95 13.99 11.065 3.44949 4.78237 30.44 1488.33 1023.278 14.25 14.29 11.104 3.45371 4.78305 30.45 1488.49 1023.280 14.55 14.59 11.117 3.45622 4.78479 30.46 1488.56 1023.290 14.85 14.89 11.119 3.46212 4.79259 30.52 1488.64 1023.333 15.15 15.18 11.135 3.46940 4.80056 30.57 1488.77 1023.377 15.45 15.48 11.126 3.46735 4.79895 30.56 1488.72 1023.370 15.75 15.78 11.114 3.46803 4.80152 30.58 1488.71 1023.387 16.05 16.08 11.113 3.47061 4.80517 30.60 1488.74 1023.408 16.35 16.38 11.113 3.47199 4.80706 30.62 1488.76 1023.420 16.65 16.68 11.105 3.47312 4.80976 30.64 1488.76 1023.437 16.95 16.98 11.076 3.47716 4.81924 30.70 1488.74 1023.493 17.25 17.28 11.048 3.47591 4.82119 30.71 1488.66 1023.507 17.55 17.58 11.049 3.47561 4.82069 30.71 1488.66 1023.505 17.85 17.87 11.052 3.47711 4.82234 30.72 1488.69 1023.515 18.15 18.17 11.046 3.47945 4.82644 30.75 1488.71 1023.540 18.45 18.47 11.025 3.47869 4.82810 30.76 1488.65 1023.552 18.75 18.77 11.002 3.47867 4.83125 30.77 1488.60 1023.573 19.05 19.07 10.973 3.47778 4.83392 30.79 1488.52 1023.591 19.35 19.37 10.937 3.47630 4.83663 30.81 1488.41 1023.610 19.65 19.67 10.894 3.47296 4.83785 30.81 1488.27 1023.622 19.95 19.97 10.849 3.47025 4.84014 30.82 1488.13 1023.640 20.25 20.26 10.808 3.46691 4.84103 30.82 1487.99 1023.649 20.55 20.56 10.781 3.46394 4.84041 30.81 1487.89 1023.649 20.85 20.86 10.728 3.45926 4.84106 30.81 1487.70 1023.658 21.15 21.16 10.689 3.45706 4.84333 30.82 1487.58 1023.675 21.45 21.46 10.669 3.45190 4.83875 30.79 1487.47 1023.653 21.75 21.76 10.639 3.45121 4.84192 30.81 1487.39 1023.674 22.05 22.06 10.587 3.44676 4.84273 30.81 1487.21 1023.684 22.35 22.36 10.533 3.44409 4.84630 30.83 1487.05 1023.709 22.65 22.65 10.531 3.44150 4.84299 30.80 1487.01 1023.692 22.95 22.95 10.501 3.43673 4.84039 30.78 1486.88 1023.681 23.25 23.25 10.486 3.43387 4.83838 30.76 1486.82 1023.673 23.55 23.55 10.503 3.43963 4.84416 30.81 1486.93 1023.704 23.85 23.85 10.514 3.44230 4.84642 30.82 1487.00 1023.717 24.15 24.15 10.471 3.43994 4.84892 30.84 1486.87 1023.736 24.45 24.45 10.475 3.44031 4.84899 30.84 1486.88 1023.737 24.75 24.74 10.469 3.43945 4.84848 30.83 1486.87 1023.736 25.05 25.04 10.444 3.43889 4.85119 30.85 1486.80 1023.754 25.35 25.34 10.424 3.43734 4.85170 30.85 1486.73 1023.759 25.65 25.64 10.401 3.43542 4.85220 30.85 1486.65 1023.765 25.95 25.94 10.389 3.43353 4.85117 30.84 1486.61 1023.762 26.25 26.24 10.382 3.43170 4.84951 30.83 1486.57 1023.754 26.55 26.54 10.366 3.43209 4.85221 30.85 1486.54 1023.772 26.85 26.84 10.347 3.43125 4.85368 30.85 1486.48 1023.782 27.15 27.13 10.338 3.42983 4.85286 30.85 1486.45 1023.780 27.45 27.43 10.328 3.42867 4.85262 30.84 1486.41 1023.780 27.75 27.73 10.332 3.42935 4.85308 30.85 1486.44 1023.784 28.05 28.03 10.334 3.42913 4.85246 30.84 1486.45 1023.782 28.35 28.33 10.332 3.42764 4.85064 30.83 1486.43 1023.773 28.65 28.63 10.319 3.42777 4.85261 30.84 1486.40 1023.786 28.95 28.93 10.315 3.42795 4.85334 30.85 1486.40 1023.792 29.25 29.23 10.315 3.42842 4.85403 30.85 1486.41 1023.797 29.55 29.52 10.316 3.43122 4.85789 30.88 1486.45 1023.819 29.85 29.82 10.323 3.43308 4.85955 30.89 1486.49 1023.829 30.15 30.12 10.336 3.43223 4.85660 30.87 1486.52 1023.813 30.57 30.54 10.342 3.43260 4.85628 30.87 1486.55 1023.813