*2026/01/16 10:37:48.37 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 23:00:35.000 END TIME : UTC 2025/02/19 23:00:56.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 107 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.88 2 Depth metres 0.15 31.74 3 Temperature 'deg C (ITS90)' 7.476 10.071 4 Conductivity S/m 1.94956 3.50296 5 Conductance:Specific S/m 3.00153 4.99465 6 Salinity PSS-78 17.98 31.81 7 Speed:Sound m/s 1459.37 1486.73 8 Density kg/m^3 1013.996 1024.595 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 57 LATITUDE : 49 43.23760 N ! (deg min) LONGITUDE : 126 38.00360 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_230035 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 107 107 MERGEHDR 1.3 2026/01/16 10:35:40 107 107 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:37 107 107 CALIB 12.1 2026/01/16 10:37:11 107 107 CLEAN 5.3 2026/01/16 10:37:48 107 107 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:11 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 10:37:42 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 7.476 1.94956 3.00153 17.98 1459.37 1013.996 0.45 0.45 8.592 2.82446 4.20405 26.14 1473.80 1020.249 0.75 0.75 8.698 3.15227 4.67723 29.42 1478.23 1022.800 1.05 1.05 8.708 3.17974 4.71661 29.69 1478.61 1023.015 1.35 1.35 8.696 3.21005 4.76323 30.02 1478.97 1023.271 1.65 1.65 8.734 3.22807 4.78453 30.17 1479.31 1023.387 1.95 1.95 8.777 3.24602 4.80507 30.32 1479.66 1023.499 2.25 2.25 8.814 3.25644 4.81524 30.40 1479.89 1023.555 2.55 2.54 8.844 3.26457 4.82298 30.46 1480.08 1023.597 2.85 2.84 8.837 3.26663 4.82703 30.48 1480.09 1023.621 3.15 3.14 8.835 3.27150 4.83445 30.53 1480.16 1023.663 3.45 3.44 8.845 3.27900 4.84417 30.60 1480.28 1023.717 3.75 3.74 8.859 3.28174 4.84617 30.62 1480.36 1023.728 4.05 4.04 8.871 3.28672 4.85182 30.66 1480.46 1023.760 4.35 4.34 8.884 3.28882 4.85301 30.67 1480.52 1023.767 4.65 4.63 8.901 3.29036 4.85296 30.67 1480.59 1023.768 4.95 4.93 8.911 3.29173 4.85351 30.68 1480.64 1023.772 5.25 5.23 8.917 3.29087 4.85135 30.66 1480.65 1023.761 5.55 5.53 8.920 3.29232 4.85306 30.67 1480.68 1023.771 5.85 5.83 8.922 3.29286 4.85359 30.68 1480.70 1023.775 6.15 6.13 8.925 3.29366 4.85435 30.68 1480.72 1023.781 6.45 6.43 8.931 3.29538 4.85599 30.70 1480.77 1023.791 6.75 6.73 8.936 3.29708 4.85776 30.71 1480.81 1023.801 7.05 7.02 8.933 3.29804 4.85967 30.72 1480.81 1023.813 7.35 7.32 8.930 3.29997 4.86297 30.74 1480.83 1023.833 7.65 7.62 8.935 3.30011 4.86239 30.74 1480.86 1023.831 7.95 7.92 8.935 3.30115 4.86392 30.75 1480.87 1023.840 8.25 8.22 8.930 3.30239 4.86652 30.77 1480.88 1023.856 8.55 8.52 8.929 3.30294 4.86746 30.78 1480.89 1023.862 8.85 8.82 8.930 3.30302 4.86748 30.78 1480.90 1023.864 9.15 9.12 8.930 3.30288 4.86725 30.77 1480.90 1023.864 9.45 9.41 8.929 3.30285 4.86732 30.77 1480.90 1023.866 9.75 9.71 8.925 3.30268 4.86756 30.78 1480.90 1023.868 10.05 10.01 8.924 3.30278 4.86792 30.78 1480.90 1023.872 10.35 10.31 8.925 3.30307 4.86824 30.78 1480.91 1023.875 10.65 10.61 8.924 3.30344 4.86890 30.78 1480.92 1023.879 10.95 10.91 8.924 3.30438 4.87020 30.79 1480.93 1023.888 11.25 11.21 8.926 3.30531 4.87140 30.80 1480.95 1023.896 11.55 11.50 8.925 3.30598 4.87254 30.81 1480.96 1023.903 11.85 11.80 8.928 3.30682 4.87327 30.81 1480.99 1023.908 12.15 12.10 8.941 3.31038 4.87662 30.84 1481.07 1023.927 12.45 12.40 8.966 3.31454 4.87919 30.86 1481.20 1023.942 12.75 12.70 8.990 3.31868 4.88191 30.88 1481.32 1023.957 13.05 13.00 9.009 3.32053 4.88179 30.89 1481.40 1023.957 13.35 13.30 9.024 3.32218 4.88217 30.89 1481.46 1023.959 13.65 13.59 9.032 3.32306 4.88220 30.89 1481.50 1023.960 13.95 13.89 9.041 3.32643 4.88587 30.92 1481.57 1023.981 14.25 14.19 9.046 3.32658 4.88541 30.92 1481.59 1023.980 14.55 14.49 9.050 3.32658 4.88485 30.91 1481.61 1023.978 14.85 14.79 9.063 3.32707 4.88366 30.91 1481.65 1023.972 15.15 15.09 9.095 3.33412 4.88950 30.95 1481.83 1024.004 15.45 15.39 9.126 3.34145 4.89570 31.00 1482.01 1024.038 15.75 15.69 9.159 3.34937 4.90260 31.05 1482.20 1024.075 16.05 15.98 9.182 3.35550 4.90823 31.09 1482.34 1024.106 16.35 16.28 9.237 3.36176 4.90955 31.11 1482.57 1024.112 16.65 16.58 9.274 3.36913 4.91495 31.15 1482.77 1024.141 16.95 16.88 9.312 3.37440 4.91728 31.17 1482.94 1024.154 17.25 17.18 9.349 3.37880 4.91841 31.19 1483.09 1024.159 17.55 17.48 9.394 3.38911 4.92694 31.25 1483.35 1024.205 17.85 17.78 9.433 3.39638 4.93193 31.29 1483.54 1024.232 18.15 18.07 9.462 3.40064 4.93388 31.31 1483.68 1024.242 18.45 18.37 9.484 3.40208 4.93285 31.31 1483.76 1024.237 18.75 18.67 9.495 3.40278 4.93223 31.30 1483.80 1024.234 19.05 18.97 9.502 3.40273 4.93127 31.30 1483.82 1024.230 19.35 19.27 9.517 3.40500 4.93235 31.31 1483.89 1024.236 19.65 19.57 9.555 3.40945 4.93333 31.32 1484.05 1024.240 19.95 19.87 9.597 3.41910 4.94127 31.38 1484.29 1024.283 20.25 20.16 9.646 3.42511 4.94299 31.40 1484.49 1024.291 20.55 20.46 9.693 3.43836 4.95540 31.49 1484.78 1024.358 20.85 20.76 9.733 3.45080 4.96767 31.58 1485.05 1024.424 21.15 21.06 9.769 3.45350 4.96638 31.58 1485.18 1024.416 21.45 21.36 9.796 3.45696 4.96752 31.59 1485.29 1024.422 21.75 21.66 9.814 3.45844 4.96707 31.59 1485.36 1024.420 22.05 21.96 9.823 3.45992 4.96783 31.60 1485.41 1024.425 22.35 22.25 9.830 3.46028 4.96746 31.59 1485.44 1024.424 22.65 22.55 9.832 3.46117 4.96836 31.60 1485.46 1024.430 22.95 22.85 9.837 3.46186 4.96869 31.60 1485.48 1024.433 23.25 23.15 9.838 3.46320 4.97042 31.62 1485.51 1024.443 23.55 23.45 9.843 3.46337 4.96995 31.61 1485.53 1024.442 23.85 23.75 9.847 3.46397 4.97033 31.62 1485.55 1024.445 24.15 24.04 9.848 3.46350 4.96949 31.61 1485.55 1024.442 24.45 24.34 9.852 3.46367 4.96911 31.61 1485.57 1024.440 24.75 24.64 9.858 3.46477 4.96983 31.61 1485.60 1024.445 25.05 24.94 9.866 3.46663 4.97139 31.63 1485.65 1024.455 25.35 25.24 9.878 3.46947 4.97375 31.64 1485.72 1024.468 25.65 25.54 9.895 3.47133 4.97398 31.65 1485.79 1024.470 25.95 25.84 9.911 3.47375 4.97517 31.66 1485.87 1024.476 26.25 26.13 9.925 3.47654 4.97722 31.67 1485.94 1024.488 26.55 26.43 9.939 3.47947 4.97941 31.69 1486.02 1024.500 26.85 26.73 9.955 3.48160 4.98014 31.70 1486.09 1024.505 27.15 27.03 9.964 3.48240 4.97993 31.70 1486.13 1024.504 27.45 27.33 9.970 3.48333 4.98038 31.70 1486.16 1024.508 27.75 27.63 9.976 3.48337 4.97960 31.70 1486.18 1024.504 28.05 27.92 9.985 3.48434 4.97972 31.70 1486.22 1024.506 28.35 28.22 9.997 3.48559 4.97986 31.70 1486.27 1024.507 28.65 28.52 10.000 3.48904 4.98440 31.73 1486.33 1024.533 28.95 28.82 9.999 3.49131 4.98773 31.76 1486.36 1024.553 29.25 29.12 10.008 3.49478 4.99140 31.78 1486.43 1024.574 29.55 29.42 10.025 3.49748 4.99282 31.80 1486.51 1024.582 29.85 29.72 10.034 3.49895 4.99368 31.80 1486.55 1024.587 30.15 30.01 10.043 3.50048 4.99455 31.81 1486.60 1024.593 30.45 30.31 10.054 3.50170 4.99465 31.81 1486.65 1024.594 30.75 30.61 10.060 3.50210 4.99451 31.81 1486.67 1024.594 31.05 30.91 10.067 3.50296 4.99462 31.81 1486.71 1024.595 31.35 31.21 10.070 3.50270 4.99387 31.81 1486.72 1024.592 31.65 31.51 10.071 3.50250 4.99349 31.81 1486.72 1024.591 31.88 31.74 10.071 3.50262 4.99357 31.81 1486.73 1024.593