*2026/01/16 09:57:51.81 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/12 00:19:05.000 END TIME : UTC 2024/06/12 00:19:23.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 94 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.13 2 Depth metres 0.15 28.01 3 Temperature 'deg C (ITS90)' 9.306 14.678 4 Conductivity S/m 3.46959 3.55847 5 Conductance:Specific S/m 4.46739 5.05764 6 Salinity PSS-78 28.52 32.16 7 Speed:Sound m/s 1484.3 1498.12 8 Density kg/m^3 1021.055 1024.972 $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 : 151 LATITUDE : 48 51.55090 N ! (deg min) LONGITUDE : 125 6.84580 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240612_001905 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 94 94 MERGEHDR 1.3 2026/01/16 09:53:54 94 94 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:18 94 94 CALIB 12.1 2026/01/16 09:56:51 94 94 CLEAN 5.3 2026/01/16 09:57:51 94 94 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 14.641 3.54348 4.46948 28.54 1498.00 1021.071 0.45 0.45 14.678 3.54517 4.46739 28.52 1498.11 1021.055 0.75 0.75 14.675 3.54673 4.46978 28.54 1498.12 1021.070 1.05 1.05 14.663 3.54690 4.47132 28.55 1498.10 1021.081 1.35 1.35 14.652 3.54762 4.47339 28.56 1498.09 1021.095 1.65 1.65 14.635 3.54805 4.47593 28.58 1498.06 1021.113 1.95 1.95 14.610 3.54973 4.48088 28.61 1498.02 1021.145 2.25 2.25 14.603 3.55072 4.48292 28.63 1498.02 1021.159 2.55 2.55 14.595 3.55147 4.48478 28.64 1498.01 1021.171 2.85 2.85 14.563 3.55182 4.48876 28.67 1497.94 1021.199 3.15 3.14 14.526 3.55378 4.49549 28.71 1497.88 1021.243 3.45 3.44 14.484 3.55306 4.49932 28.74 1497.78 1021.271 3.75 3.74 14.410 3.55070 4.50485 28.77 1497.58 1021.314 4.05 4.04 14.365 3.55179 4.51140 28.81 1497.49 1021.358 4.35 4.34 14.285 3.55122 4.51980 28.87 1497.29 1021.417 4.65 4.64 14.153 3.55341 4.53783 28.99 1497.00 1021.536 4.95 4.94 13.906 3.55749 4.57193 29.21 1496.45 1021.759 5.25 5.24 13.848 3.55618 4.57699 29.24 1496.31 1021.796 5.55 5.54 13.831 3.55627 4.57914 29.25 1496.27 1021.811 5.85 5.84 13.824 3.55742 4.58153 29.27 1496.27 1021.827 6.15 6.14 13.807 3.55824 4.58450 29.29 1496.24 1021.846 6.45 6.44 13.765 3.55740 4.58841 29.32 1496.14 1021.875 6.75 6.74 13.664 3.55847 4.60184 29.40 1495.91 1021.964 7.05 7.04 13.443 3.55692 4.62622 29.56 1495.36 1022.128 7.35 7.34 12.898 3.54375 4.67537 29.86 1493.89 1022.469 7.65 7.63 12.442 3.53580 4.72172 30.15 1492.68 1022.779 7.95 7.93 12.067 3.53238 4.76484 30.42 1491.72 1023.059 8.25 8.23 11.804 3.52942 4.79485 30.61 1491.04 1023.252 8.55 8.53 11.622 3.52961 4.81902 30.76 1490.59 1023.405 8.85 8.83 11.497 3.52899 4.83459 30.86 1490.28 1023.504 9.15 9.13 11.377 3.52577 4.84615 30.93 1489.94 1023.580 9.45 9.43 11.181 3.51887 4.86286 31.02 1489.37 1023.691 9.75 9.73 10.915 3.51390 4.89203 31.20 1488.65 1023.876 10.05 10.02 10.600 3.50749 4.92622 31.40 1487.78 1024.091 10.35 10.32 10.399 3.50227 4.94685 31.53 1487.21 1024.222 10.65 10.62 10.243 3.49751 4.96198 31.61 1486.76 1024.317 10.95 10.92 10.066 3.49324 4.98096 31.73 1486.27 1024.435 11.25 11.22 9.996 3.49240 4.98978 31.78 1486.08 1024.490 11.55 11.52 9.967 3.49159 4.99267 31.80 1486.00 1024.509 11.85 11.82 9.939 3.49127 4.99630 31.82 1485.93 1024.532 12.15 12.11 9.903 3.49004 4.99960 31.84 1485.83 1024.553 12.45 12.41 9.887 3.49114 5.00354 31.86 1485.81 1024.577 12.75 12.71 9.860 3.49085 5.00700 31.88 1485.74 1024.599 13.05 13.01 9.850 3.49062 5.00801 31.89 1485.72 1024.607 13.35 13.31 9.823 3.48831 5.00869 31.89 1485.62 1024.614 13.65 13.61 9.806 3.48837 5.01115 31.90 1485.58 1024.629 13.95 13.91 9.788 3.48787 5.01308 31.91 1485.54 1024.642 14.25 14.20 9.775 3.48744 5.01426 31.92 1485.50 1024.651 14.55 14.50 9.760 3.48635 5.01492 31.92 1485.46 1024.657 14.85 14.80 9.747 3.48627 5.01660 31.93 1485.43 1024.668 15.15 15.10 9.734 3.48525 5.01699 31.93 1485.39 1024.672 15.45 15.40 9.726 3.48489 5.01774 31.94 1485.36 1024.678 15.75 15.70 9.722 3.48544 5.01901 31.95 1485.37 1024.687 16.05 15.99 9.706 3.48503 5.02083 31.96 1485.32 1024.699 16.35 16.29 9.691 3.48421 5.02175 31.96 1485.28 1024.706 16.65 16.59 9.684 3.48323 5.02142 31.96 1485.25 1024.706 16.95 16.89 9.672 3.48318 5.02306 31.97 1485.23 1024.717 17.25 17.19 9.660 3.48295 5.02445 31.98 1485.20 1024.726 17.55 17.49 9.646 3.48224 5.02541 31.98 1485.16 1024.734 17.85 17.79 9.637 3.48181 5.02612 31.99 1485.14 1024.739 18.15 18.08 9.635 3.48164 5.02613 31.98 1485.13 1024.741 18.45 18.38 9.632 3.48190 5.02703 31.99 1485.13 1024.747 18.75 18.68 9.624 3.48165 5.02776 31.99 1485.12 1024.753 19.05 18.98 9.615 3.48144 5.02880 32.00 1485.09 1024.760 19.35 19.28 9.617 3.48196 5.02923 32.00 1485.11 1024.764 19.65 19.58 9.622 3.48270 5.02968 32.01 1485.14 1024.767 19.95 19.87 9.617 3.48203 5.02938 32.00 1485.12 1024.767 20.25 20.17 9.610 3.48192 5.03022 32.01 1485.11 1024.774 20.55 20.47 9.599 3.48162 5.03134 32.02 1485.08 1024.782 20.85 20.77 9.595 3.48132 5.03157 32.02 1485.07 1024.784 21.15 21.07 9.575 3.48030 5.03302 32.02 1485.01 1024.795 21.45 21.37 9.559 3.47984 5.03466 32.03 1484.97 1024.806 21.75 21.67 9.549 3.47937 5.03544 32.04 1484.94 1024.812 22.05 21.96 9.527 3.47865 5.03759 32.05 1484.88 1024.826 22.35 22.26 9.500 3.47773 5.04014 32.06 1484.81 1024.843 22.65 22.56 9.487 3.47735 5.04159 32.07 1484.77 1024.853 22.95 22.86 9.473 3.47806 5.04461 32.09 1484.75 1024.872 23.25 23.16 9.466 3.47787 5.04539 32.10 1484.73 1024.878 23.55 23.46 9.456 3.47704 5.04569 32.10 1484.70 1024.881 23.85 23.75 9.452 3.47628 5.04511 32.09 1484.69 1024.879 24.15 24.05 9.447 3.47674 5.04650 32.10 1484.68 1024.889 24.45 24.35 9.425 3.47623 5.04896 32.11 1484.63 1024.904 24.75 24.65 9.407 3.47516 5.05013 32.12 1484.57 1024.913 25.05 24.95 9.409 3.47545 5.05016 32.12 1484.59 1024.914 25.35 25.25 9.420 3.47369 5.04597 32.09 1484.60 1024.892 25.65 25.54 9.390 3.47236 5.04844 32.11 1484.51 1024.908 25.95 25.84 9.355 3.47258 5.05399 32.14 1484.42 1024.942 26.25 26.14 9.352 3.47236 5.05406 32.14 1484.42 1024.944 26.55 26.44 9.343 3.47150 5.05417 32.14 1484.39 1024.946 26.85 26.74 9.337 3.47176 5.05536 32.15 1484.38 1024.954 27.15 27.04 9.332 3.47179 5.05626 32.15 1484.37 1024.961 27.45 27.33 9.328 3.47206 5.05713 32.16 1484.37 1024.967 27.75 27.63 9.306 3.47020 5.05764 32.16 1484.30 1024.972 28.13 28.01 9.308 3.46959 5.05652 32.15 1484.30 1024.968