*2026/01/16 09:57:51.78 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/11 23:12:23.000 END TIME : UTC 2024/06/11 23:12:41.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 93 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.63 2 Depth metres 0.15 27.51 3 Temperature 'deg C (ITS90)' 9.32 15.456 4 Conductivity S/m 3.17882 3.53208 5 Conductance:Specific S/m 3.92875 5.06428 6 Salinity PSS-78 24.78 32.21 7 Speed:Sound m/s 1484.41 1496.5 8 Density kg/m^3 1018.021 1025.008 $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 : 150 LATITUDE : 48 52.98010 N ! (deg min) LONGITUDE : 125 4.55850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240611_231223 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 93 93 MERGEHDR 1.3 2026/01/16 09:53:54 93 93 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:18 93 93 CALIB 12.1 2026/01/16 09:56:51 93 93 CLEAN 5.3 2026/01/16 09:57:51 93 93 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 15.456 3.17882 3.92875 24.78 1496.29 1018.021 0.45 0.45 15.355 3.18020 3.94029 24.86 1496.06 1018.101 0.75 0.75 15.188 3.21213 3.99640 25.24 1495.96 1018.430 1.05 1.05 15.106 3.24295 4.04300 25.56 1496.07 1018.695 1.35 1.35 15.125 3.25354 4.05428 25.64 1496.23 1018.753 1.65 1.65 15.153 3.26234 4.06237 25.70 1496.40 1018.793 1.95 1.95 15.139 3.26758 4.07034 25.76 1496.42 1018.840 2.25 2.25 15.122 3.27730 4.08416 25.85 1496.48 1018.918 2.55 2.55 15.099 3.28467 4.09571 25.93 1496.50 1018.985 2.85 2.85 15.020 3.29562 4.11742 26.08 1496.42 1019.116 3.15 3.15 14.921 3.31315 4.14958 26.30 1496.36 1019.306 3.45 3.45 14.815 3.32114 4.17069 26.44 1496.19 1019.438 3.75 3.75 14.474 3.33730 4.22721 26.82 1495.51 1019.797 4.05 4.05 14.156 3.35943 4.28977 27.24 1494.96 1020.184 4.35 4.35 13.359 3.44371 4.48884 28.58 1493.88 1021.378 4.65 4.65 12.727 3.51329 4.65618 29.71 1493.09 1022.373 4.95 4.95 12.098 3.53208 4.76047 30.39 1491.74 1023.019 5.25 5.25 11.597 3.52578 4.81707 30.74 1490.43 1023.383 5.55 5.55 11.268 3.51870 4.85094 30.95 1489.53 1023.602 5.85 5.85 10.862 3.50634 4.88860 31.17 1488.37 1023.846 6.15 6.14 10.525 3.50167 4.92841 31.41 1487.46 1024.093 6.45 6.44 10.358 3.49927 4.94832 31.53 1487.01 1024.216 6.75 6.74 10.259 3.49820 4.96074 31.61 1486.75 1024.293 7.05 7.04 10.178 3.49712 4.97054 31.67 1486.54 1024.354 7.35 7.34 10.134 3.49646 4.97583 31.70 1486.42 1024.387 7.65 7.64 10.109 3.49509 4.97755 31.71 1486.34 1024.400 7.95 7.94 10.078 3.49471 4.98138 31.73 1486.27 1024.424 8.25 8.23 10.054 3.49363 4.98326 31.74 1486.20 1024.437 8.55 8.53 10.034 3.49346 4.98581 31.76 1486.15 1024.454 8.85 8.83 10.005 3.49330 4.98976 31.78 1486.08 1024.479 9.15 9.13 9.986 3.49253 4.99130 31.79 1486.02 1024.490 9.45 9.43 9.962 3.49197 4.99393 31.80 1485.96 1024.507 9.75 9.73 9.924 3.49074 4.99761 31.83 1485.85 1024.531 10.05 10.03 9.891 3.48894 4.99973 31.84 1485.75 1024.546 10.35 10.32 9.858 3.48898 5.00453 31.87 1485.67 1024.576 10.65 10.62 9.836 3.48827 5.00677 31.88 1485.61 1024.591 10.95 10.92 9.818 3.48770 5.00849 31.89 1485.56 1024.603 11.25 11.22 9.806 3.48710 5.00931 31.89 1485.53 1024.609 11.55 11.52 9.798 3.48664 5.00988 31.89 1485.51 1024.614 11.85 11.82 9.788 3.48664 5.01126 31.90 1485.49 1024.623 12.15 12.12 9.782 3.48631 5.01160 31.90 1485.47 1024.627 12.45 12.41 9.779 3.48605 5.01173 31.90 1485.47 1024.629 12.75 12.71 9.774 3.48585 5.01209 31.91 1485.46 1024.633 13.05 13.01 9.772 3.48639 5.01318 31.91 1485.46 1024.640 13.35 13.31 9.774 3.48601 5.01241 31.91 1485.47 1024.637 13.65 13.61 9.767 3.48589 5.01327 31.91 1485.45 1024.643 13.95 13.91 9.765 3.48648 5.01432 31.92 1485.46 1024.651 14.25 14.20 9.759 3.48583 5.01430 31.92 1485.44 1024.652 14.55 14.50 9.754 3.48550 5.01451 31.92 1485.43 1024.655 14.85 14.80 9.747 3.48536 5.01533 31.92 1485.42 1024.661 15.15 15.10 9.741 3.48483 5.01544 31.92 1485.40 1024.663 15.45 15.40 9.734 3.48522 5.01708 31.94 1485.39 1024.674 15.75 15.70 9.727 3.48505 5.01770 31.94 1485.38 1024.679 16.05 16.00 9.727 3.48546 5.01836 31.94 1485.38 1024.684 16.35 16.29 9.723 3.48534 5.01874 31.95 1485.38 1024.688 16.65 16.59 9.720 3.48419 5.01748 31.94 1485.36 1024.682 16.95 16.89 9.716 3.48164 5.01446 31.91 1485.32 1024.667 17.25 17.19 9.710 3.48492 5.02000 31.95 1485.35 1024.699 17.55 17.49 9.704 3.48469 5.02063 31.96 1485.34 1024.704 17.85 17.79 9.701 3.48405 5.02014 31.95 1485.33 1024.703 18.15 18.08 9.692 3.48396 5.02125 31.96 1485.31 1024.711 18.45 18.38 9.680 3.48378 5.02280 31.97 1485.28 1024.721 18.75 18.68 9.664 3.48367 5.02494 31.98 1485.24 1024.735 19.05 18.98 9.649 3.48319 5.02635 31.99 1485.20 1024.745 19.35 19.28 9.641 3.48269 5.02690 31.99 1485.18 1024.750 19.65 19.58 9.634 3.48249 5.02756 31.99 1485.17 1024.755 19.95 19.88 9.626 3.48251 5.02879 32.00 1485.15 1024.764 20.25 20.17 9.623 3.48209 5.02859 32.00 1485.14 1024.764 20.55 20.47 9.611 3.48212 5.03037 32.01 1485.12 1024.776 20.85 20.77 9.606 3.48200 5.03089 32.01 1485.11 1024.780 21.15 21.07 9.599 3.48223 5.03223 32.02 1485.10 1024.789 21.45 21.37 9.596 3.48080 5.03063 32.01 1485.08 1024.782 21.75 21.67 9.584 3.48146 5.03336 32.03 1485.06 1024.799 22.05 21.96 9.571 3.48029 5.03350 32.03 1485.02 1024.801 22.35 22.26 9.561 3.48063 5.03545 32.04 1485.00 1024.814 22.65 22.56 9.547 3.48014 5.03684 32.05 1484.96 1024.824 22.95 22.86 9.536 3.48013 5.03841 32.06 1484.94 1024.834 23.25 23.16 9.533 3.48007 5.03881 32.06 1484.93 1024.838 23.55 23.46 9.527 3.48043 5.04012 32.07 1484.93 1024.847 23.85 23.75 9.519 3.47988 5.04056 32.07 1484.90 1024.851 24.15 24.05 9.519 3.48012 5.04092 32.07 1484.91 1024.854 24.45 24.35 9.507 3.47945 5.04171 32.07 1484.88 1024.860 24.75 24.65 9.498 3.47925 5.04273 32.08 1484.86 1024.868 25.05 24.95 9.501 3.47937 5.04236 32.08 1484.87 1024.867 25.35 25.25 9.501 3.47954 5.04265 32.08 1484.88 1024.870 25.65 25.55 9.491 3.47986 5.04453 32.09 1484.86 1024.882 25.95 25.84 9.487 3.47962 5.04482 32.09 1484.85 1024.885 26.25 26.14 9.464 3.47810 5.04600 32.10 1484.78 1024.894 26.55 26.44 9.398 3.47658 5.05342 32.14 1484.60 1024.939 26.85 26.74 9.351 3.47641 5.06019 32.18 1484.47 1024.980 27.15 27.04 9.335 3.47657 5.06270 32.20 1484.44 1024.996 27.45 27.34 9.327 3.47639 5.06366 32.20 1484.42 1025.003 27.63 27.51 9.320 3.47615 5.06428 32.21 1484.41 1025.008