*2026/01/16 09:57:56.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/16 20:16:31.000 END TIME : UTC 2024/10/16 20:16:51.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.76 2 Depth metres 0.15 30.62 3 Temperature 'deg C (ITS90)' 10.576 12.731 4 Conductivity S/m 2.88288 3.58939 5 Conductance:Specific S/m 3.82649 5.02911 6 Salinity PSS-78 23.92 32.12 7 Speed:Sound m/s 1485.97 1491.15 8 Density kg/m^3 1017.885 1024.748 $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 : 275 LATITUDE : 48 58.92810 N ! (deg min) LONGITUDE : 124 55.39090 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241016_201631 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 103 103 MERGEHDR 1.3 2026/01/16 09:54:09 103 103 HDREDIT2 3.2 2026/01/16 09:55:13 ? ? REMOVECH 8.2 2026/01/16 09:56:24 103 103 CALIB 12.1 2026/01/16 09:56:56 103 103 CLEAN 5.3 2026/01/16 09:57:56 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:13 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 12.731 2.89188 3.83221 23.96 1486.23 1017.907 0.45 0.45 12.670 2.88288 3.82649 23.92 1485.97 1017.885 0.75 0.75 12.591 3.00431 3.99607 25.08 1487.07 1018.800 1.05 1.05 12.485 3.23404 4.31375 27.28 1489.32 1020.523 1.35 1.35 12.463 3.29164 4.39320 27.84 1489.91 1020.957 1.65 1.65 12.447 3.30627 4.41464 27.99 1490.03 1021.077 1.95 1.95 12.415 3.31027 4.42376 28.05 1490.00 1021.131 2.25 2.25 12.387 3.33065 4.45433 28.26 1490.16 1021.302 2.55 2.55 12.341 3.36502 4.50576 28.62 1490.43 1021.588 2.85 2.85 12.300 3.38978 4.54400 28.88 1490.61 1021.803 3.15 3.15 12.275 3.40053 4.56140 29.00 1490.67 1021.902 3.45 3.45 12.240 3.41595 4.58645 29.18 1490.76 1022.044 3.75 3.75 12.216 3.44008 4.62183 29.42 1490.98 1022.241 4.05 4.04 12.178 3.45512 4.64670 29.60 1491.06 1022.382 4.35 4.34 12.095 3.48167 4.69296 29.91 1491.15 1022.646 4.65 4.64 12.023 3.49320 4.71766 30.08 1491.11 1022.790 4.95 4.94 11.953 3.50652 4.74450 30.27 1491.09 1022.946 5.25 5.24 11.856 3.52041 4.77596 30.48 1491.01 1023.131 5.55 5.54 11.705 3.53371 4.81370 30.73 1490.79 1023.355 5.85 5.84 11.526 3.55152 4.86165 31.05 1490.56 1023.637 6.15 6.14 11.426 3.55621 4.88140 31.18 1490.37 1023.757 6.45 6.44 11.373 3.56947 4.90682 31.36 1490.40 1023.904 6.75 6.73 11.304 3.57522 4.92404 31.47 1490.30 1024.006 7.05 7.03 11.254 3.57925 4.93637 31.55 1490.23 1024.080 7.35 7.33 11.229 3.58024 4.94108 31.58 1490.18 1024.109 7.65 7.63 11.215 3.58338 4.94731 31.63 1490.19 1024.146 7.95 7.93 11.197 3.58852 4.95699 31.69 1490.21 1024.203 8.25 8.23 11.173 3.58907 4.96096 31.72 1490.16 1024.228 8.55 8.53 11.149 3.58939 4.96468 31.74 1490.11 1024.252 8.85 8.82 11.116 3.58903 4.96876 31.77 1490.03 1024.279 9.15 9.12 11.096 3.58801 4.97007 31.77 1489.97 1024.289 9.45 9.42 11.084 3.58777 4.97143 31.78 1489.94 1024.299 9.75 9.72 11.073 3.58709 4.97193 31.78 1489.91 1024.304 10.05 10.02 11.063 3.58786 4.97439 31.80 1489.90 1024.319 10.35 10.32 11.047 3.58728 4.97587 31.81 1489.86 1024.330 10.65 10.62 11.014 3.58687 4.97982 31.83 1489.78 1024.356 10.95 10.91 10.996 3.58622 4.98137 31.84 1489.73 1024.367 11.25 11.21 10.975 3.58608 4.98419 31.86 1489.68 1024.386 11.55 11.51 10.954 3.58574 4.98650 31.87 1489.63 1024.402 11.85 11.81 10.941 3.58578 4.98842 31.88 1489.60 1024.415 12.15 12.11 10.928 3.58526 4.98945 31.89 1489.57 1024.423 12.45 12.41 10.916 3.58456 4.99026 31.89 1489.53 1024.430 12.75 12.71 10.909 3.58549 4.99248 31.91 1489.53 1024.444 13.05 13.00 10.901 3.58494 4.99274 31.91 1489.51 1024.447 13.35 13.30 10.893 3.58499 4.99405 31.92 1489.50 1024.456 13.65 13.60 10.881 3.58416 4.99447 31.92 1489.46 1024.461 13.95 13.90 10.870 3.58149 4.99237 31.90 1489.41 1024.451 14.25 14.20 10.862 3.57937 4.99052 31.89 1489.37 1024.443 14.55 14.50 10.856 3.58380 4.99742 31.94 1489.41 1024.483 14.85 14.80 10.850 3.58271 4.99678 31.93 1489.39 1024.481 15.15 15.09 10.842 3.58261 4.99774 31.94 1489.37 1024.488 15.45 15.39 10.835 3.58195 4.99787 31.94 1489.35 1024.491 15.75 15.69 10.829 3.58166 4.99829 31.94 1489.34 1024.495 16.05 15.99 10.821 3.58096 4.99839 31.94 1489.31 1024.497 16.35 16.29 10.808 3.58039 4.99941 31.94 1489.28 1024.505 16.65 16.59 10.793 3.58103 5.00241 31.96 1489.25 1024.524 16.95 16.88 10.781 3.57967 5.00218 31.96 1489.21 1024.525 17.25 17.18 10.773 3.57935 5.00286 31.96 1489.19 1024.531 17.55 17.48 10.759 3.57952 5.00503 31.98 1489.17 1024.545 17.85 17.78 10.752 3.57948 5.00601 31.98 1489.15 1024.553 18.15 18.08 10.748 3.57952 5.00656 31.99 1489.15 1024.557 18.45 18.38 10.743 3.57967 5.00745 31.99 1489.14 1024.564 18.75 18.68 10.741 3.57980 5.00801 32.00 1489.14 1024.568 19.05 18.97 10.736 3.58012 5.00909 32.00 1489.14 1024.576 19.35 19.27 10.734 3.57992 5.00920 32.00 1489.14 1024.578 19.65 19.57 10.731 3.57969 5.00921 32.00 1489.13 1024.580 19.95 19.87 10.728 3.57966 5.00960 32.01 1489.13 1024.583 20.25 20.17 10.725 3.58002 5.01050 32.01 1489.13 1024.590 20.55 20.47 10.721 3.57926 5.01001 32.01 1489.12 1024.589 20.85 20.76 10.717 3.58027 5.01198 32.02 1489.12 1024.601 21.15 21.06 10.711 3.57952 5.01181 32.02 1489.10 1024.602 21.45 21.36 10.706 3.57991 5.01304 32.03 1489.10 1024.610 21.75 21.66 10.703 3.57955 5.01294 32.03 1489.09 1024.611 22.05 21.96 10.701 3.58008 5.01395 32.03 1489.10 1024.618 22.35 22.26 10.694 3.57958 5.01422 32.03 1489.08 1024.621 22.65 22.56 10.691 3.57915 5.01402 32.03 1489.07 1024.622 22.95 22.85 10.690 3.57907 5.01413 32.03 1489.07 1024.624 23.25 23.15 10.688 3.57972 5.01526 32.04 1489.08 1024.631 23.55 23.45 10.682 3.58002 5.01655 32.05 1489.07 1024.640 23.85 23.75 10.678 3.57979 5.01674 32.05 1489.07 1024.643 24.15 24.05 10.673 3.57963 5.01722 32.05 1489.06 1024.647 24.45 24.35 10.668 3.57941 5.01773 32.05 1489.05 1024.652 24.75 24.64 10.662 3.57964 5.01886 32.06 1489.04 1024.660 25.05 24.94 10.655 3.57903 5.01897 32.06 1489.02 1024.662 25.35 25.24 10.650 3.57929 5.02007 32.07 1489.01 1024.670 25.65 25.54 10.643 3.57877 5.02034 32.07 1488.99 1024.673 25.95 25.84 10.630 3.57894 5.02243 32.08 1488.97 1024.687 26.25 26.14 10.624 3.57877 5.02294 32.09 1488.96 1024.692 26.55 26.44 10.617 3.57822 5.02312 32.09 1488.94 1024.694 26.85 26.73 10.609 3.57830 5.02449 32.09 1488.92 1024.704 27.15 27.03 10.604 3.57799 5.02465 32.10 1488.91 1024.706 27.45 27.33 10.600 3.57848 5.02593 32.10 1488.91 1024.715 27.75 27.63 10.600 3.57851 5.02600 32.10 1488.92 1024.717 28.05 27.93 10.599 3.57892 5.02668 32.11 1488.93 1024.722 28.35 28.23 10.596 3.57881 5.02699 32.11 1488.92 1024.725 28.65 28.52 10.597 3.57890 5.02701 32.11 1488.93 1024.726 28.95 28.82 10.597 3.57843 5.02629 32.11 1488.93 1024.723 29.25 29.12 10.594 3.57838 5.02665 32.11 1488.93 1024.727 29.55 29.42 10.592 3.57841 5.02705 32.11 1488.92 1024.731 29.85 29.72 10.583 3.57831 5.02808 32.12 1488.91 1024.738 30.15 30.02 10.580 3.57804 5.02818 32.12 1488.90 1024.740 30.45 30.32 10.577 3.57796 5.02840 32.12 1488.90 1024.743 30.76 30.62 10.576 3.57829 5.02911 32.12 1488.90 1024.748