*2026/01/16 09:57:54.74 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 23:55:31.000 END TIME : UTC 2024/09/04 23:55:53.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 111 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.27 2 Depth metres 0.15 33.12 3 Temperature 'deg C (ITS90)' 10.503 17.534 4 Conductivity S/m 3.55738 3.83648 5 Conductance:Specific S/m 4.50807 5.01594 6 Salinity PSS-78 28.96 32.03 7 Speed:Sound m/s 1488.51 1507.57 8 Density kg/m^3 1020.78 1024.682 $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 : 247 LATITUDE : 48 52.97080 N ! (deg min) LONGITUDE : 125 4.53920 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_235531 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 111 111 MERGEHDR 1.3 2026/01/16 09:54:06 111 111 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 111 111 CALIB 12.1 2026/01/16 09:56:55 111 111 CLEAN 5.3 2026/01/16 09:57:54 111 111 $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 17.534 3.83648 4.50989 28.98 1507.57 1020.780 0.45 0.45 17.419 3.83538 4.52078 29.05 1507.31 1020.864 0.75 0.75 17.307 3.83182 4.52861 29.11 1507.03 1020.930 1.05 1.05 17.281 3.82724 4.52600 29.09 1506.94 1020.922 1.35 1.35 17.265 3.81071 4.50807 28.96 1506.75 1020.828 1.65 1.65 17.082 3.81180 4.52901 29.10 1506.36 1020.979 1.95 1.95 16.942 3.80266 4.53321 29.12 1505.96 1021.030 2.25 2.25 16.760 3.79258 4.54090 29.17 1505.46 1021.107 2.55 2.55 15.973 3.77107 4.60186 29.56 1503.48 1021.585 2.85 2.85 14.820 3.73439 4.68911 30.11 1500.45 1022.256 3.15 3.14 14.187 3.69954 4.72042 30.29 1498.61 1022.525 3.45 3.44 13.124 3.67372 4.81806 30.90 1495.81 1023.208 3.75 3.74 12.526 3.66880 4.88829 31.34 1494.32 1023.669 4.05 4.04 12.322 3.66403 4.90864 31.47 1493.78 1023.806 4.35 4.34 12.237 3.66263 4.91795 31.53 1493.56 1023.868 4.65 4.64 12.168 3.66128 4.92531 31.57 1493.38 1023.918 4.95 4.94 12.097 3.65957 4.93248 31.62 1493.20 1023.966 5.25 5.24 12.019 3.65292 4.93379 31.62 1492.94 1023.983 5.55 5.53 11.922 3.64806 4.94022 31.65 1492.65 1024.030 5.85 5.83 11.890 3.64383 4.93881 31.64 1492.53 1024.027 6.15 6.13 11.688 3.63583 4.95506 31.73 1491.95 1024.138 6.45 6.43 11.698 3.63150 4.94788 31.68 1491.92 1024.099 6.75 6.73 11.554 3.62393 4.95692 31.73 1491.49 1024.164 7.05 7.03 11.475 3.61624 4.95718 31.72 1491.21 1024.174 7.35 7.33 11.359 3.61003 4.96447 31.76 1490.85 1024.227 7.65 7.62 11.273 3.60797 4.97331 31.82 1490.62 1024.285 7.95 7.92 11.200 3.60352 4.97725 31.84 1490.39 1024.314 8.25 8.22 11.159 3.60228 4.98120 31.86 1490.28 1024.341 8.55 8.52 11.125 3.60033 4.98314 31.87 1490.18 1024.356 8.85 8.82 11.086 3.59885 4.98644 31.89 1490.07 1024.379 9.15 9.12 11.076 3.59857 4.98754 31.89 1490.05 1024.387 9.45 9.42 11.061 3.59819 4.98902 31.90 1490.01 1024.398 9.75 9.71 11.059 3.59818 4.98925 31.90 1490.01 1024.401 10.05 10.01 11.047 3.59695 4.98921 31.90 1489.97 1024.403 10.35 10.31 11.045 3.59754 4.99031 31.91 1489.98 1024.410 10.65 10.61 11.042 3.59725 4.99031 31.91 1489.97 1024.412 10.95 10.91 11.039 3.59693 4.99034 31.91 1489.96 1024.413 11.25 11.21 11.039 3.59656 4.98980 31.91 1489.97 1024.412 11.55 11.51 11.029 3.59621 4.99067 31.91 1489.94 1024.418 11.85 11.80 11.028 3.59585 4.99035 31.91 1489.94 1024.418 12.15 12.10 11.023 3.59437 4.98904 31.90 1489.91 1024.413 12.45 12.40 11.012 3.59382 4.98973 31.90 1489.89 1024.419 12.75 12.70 10.994 3.59310 4.99124 31.91 1489.84 1024.430 13.05 13.00 10.977 3.59301 4.99345 31.92 1489.80 1024.445 13.35 13.30 10.950 3.59086 4.99424 31.93 1489.71 1024.453 13.65 13.60 10.931 3.58792 4.99281 31.91 1489.63 1024.448 13.95 13.89 10.901 3.58538 4.99339 31.91 1489.53 1024.454 14.25 14.19 10.873 3.58464 4.99636 31.93 1489.46 1024.474 14.55 14.49 10.830 3.58128 4.99765 31.94 1489.31 1024.486 14.85 14.79 10.816 3.58152 4.99988 31.95 1489.29 1024.501 15.15 15.09 10.812 3.58140 5.00031 31.95 1489.28 1024.505 15.45 15.39 10.809 3.58165 5.00105 31.96 1489.28 1024.510 15.75 15.69 10.807 3.58153 5.00114 31.96 1489.28 1024.512 16.05 15.98 10.801 3.58049 5.00060 31.95 1489.26 1024.511 16.35 16.28 10.790 3.58023 5.00176 31.96 1489.23 1024.520 16.65 16.58 10.777 3.57949 5.00255 31.96 1489.19 1024.526 16.95 16.88 10.768 3.57918 5.00334 31.97 1489.17 1024.533 17.25 17.18 10.761 3.57911 5.00425 31.97 1489.16 1024.540 17.55 17.48 10.758 3.57886 5.00433 31.97 1489.15 1024.542 17.85 17.77 10.751 3.57914 5.00569 31.98 1489.15 1024.551 18.15 18.07 10.745 3.57875 5.00595 31.98 1489.13 1024.554 18.45 18.37 10.740 3.57803 5.00562 31.98 1489.11 1024.554 18.75 18.67 10.732 3.57779 5.00637 31.98 1489.10 1024.560 19.05 18.97 10.723 3.57713 5.00676 31.99 1489.07 1024.564 19.35 19.27 10.719 3.57667 5.00674 31.99 1489.06 1024.566 19.65 19.57 10.709 3.57620 5.00749 31.99 1489.03 1024.572 19.95 19.86 10.690 3.57530 5.00881 32.00 1488.98 1024.582 20.25 20.16 10.679 3.57524 5.01025 32.00 1488.96 1024.592 20.55 20.46 10.674 3.57514 5.01088 32.01 1488.95 1024.597 20.85 20.76 10.670 3.57503 5.01126 32.01 1488.94 1024.601 21.15 21.06 10.656 3.57450 5.01249 32.02 1488.91 1024.610 21.45 21.36 10.666 3.57445 5.01104 32.01 1488.93 1024.602 21.75 21.65 10.645 3.57304 5.01204 32.01 1488.87 1024.611 22.05 21.95 10.647 3.57302 5.01162 32.01 1488.88 1024.609 22.35 22.25 10.634 3.57216 5.01232 32.01 1488.84 1024.616 22.65 22.55 10.631 3.57248 5.01316 32.02 1488.84 1024.622 22.95 22.85 10.628 3.57219 5.01319 32.02 1488.84 1024.624 23.25 23.15 10.626 3.57132 5.01230 32.01 1488.82 1024.620 23.55 23.45 10.623 3.57117 5.01245 32.01 1488.82 1024.622 23.85 23.74 10.615 3.57075 5.01302 32.02 1488.80 1024.627 24.15 24.04 10.610 3.57128 5.01441 32.02 1488.80 1024.637 24.45 24.34 10.607 3.57064 5.01398 32.02 1488.79 1024.636 24.75 24.64 10.600 3.57036 5.01448 32.02 1488.77 1024.640 25.05 24.94 10.601 3.57016 5.01409 32.02 1488.78 1024.639 25.35 25.24 10.599 3.57012 5.01440 32.02 1488.78 1024.643 25.65 25.54 10.600 3.57007 5.01419 32.02 1488.78 1024.642 25.95 25.83 10.594 3.57058 5.01567 32.03 1488.78 1024.652 26.25 26.13 10.595 3.57019 5.01503 32.03 1488.78 1024.650 26.55 26.43 10.597 3.56997 5.01439 32.02 1488.79 1024.648 26.85 26.73 10.592 3.56954 5.01456 32.02 1488.78 1024.650 27.15 27.03 10.587 3.56948 5.01511 32.03 1488.77 1024.655 27.45 27.33 10.582 3.56811 5.01390 32.02 1488.74 1024.650 27.75 27.62 10.581 3.56891 5.01515 32.02 1488.76 1024.658 28.05 27.92 10.571 3.56704 5.01404 32.02 1488.71 1024.654 28.35 28.22 10.568 3.56690 5.01422 32.02 1488.71 1024.656 28.65 28.52 10.557 3.56514 5.01331 32.01 1488.66 1024.654 28.95 28.82 10.548 3.56612 5.01594 32.03 1488.66 1024.670 29.25 29.12 10.544 3.56366 5.01309 32.00 1488.62 1024.656 29.55 29.42 10.533 3.56353 5.01444 32.01 1488.60 1024.665 29.85 29.71 10.527 3.56244 5.01366 32.01 1488.58 1024.663 30.15 30.01 10.526 3.56288 5.01453 32.01 1488.58 1024.669 30.45 30.31 10.523 3.56147 5.01294 32.00 1488.56 1024.662 30.75 30.61 10.514 3.56103 5.01355 32.00 1488.54 1024.667 31.05 30.91 10.514 3.56154 5.01430 32.01 1488.55 1024.672 31.35 31.21 10.512 3.56131 5.01424 32.01 1488.55 1024.673 31.65 31.50 10.506 3.56090 5.01455 32.01 1488.53 1024.677 31.95 31.80 10.508 3.56163 5.01531 32.01 1488.55 1024.682 32.25 32.10 10.518 3.56197 5.01432 32.01 1488.59 1024.677 32.55 32.40 10.516 3.56093 5.01310 32.00 1488.57 1024.672 32.85 32.70 10.506 3.56043 5.01381 32.00 1488.55 1024.678 33.27 33.12 10.503 3.55738 5.01003 31.98 1488.51 1024.659