*2026/01/16 10:37:50.04 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/08 18:10:16.000 END TIME : UTC 2025/04/08 18:10:32.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 83 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.65 2 Depth metres 0.15 24.6 3 Temperature 'deg C (ITS90)' 9.733 9.939 4 Conductivity S/m 3.04344 3.12023 5 Conductance:Specific S/m 4.3554 4.48684 6 Salinity PSS-78 27.34 28.22 7 Speed:Sound m/s 1480.3 1481.12 8 Density kg/m^3 1020.985 1021.809 $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 : 85 LATITUDE : 49 49.19700 N ! (deg min) LONGITUDE : 126 59.36300 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250408_181016 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 83 83 MERGEHDR 1.3 2026/01/16 10:35:41 83 83 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:39 83 83 CALIB 12.1 2026/01/16 10:37:13 83 83 CLEAN 5.3 2026/01/16 10:37:50 83 83 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 9.939 3.04344 4.35540 27.34 1480.30 1020.985 0.45 0.45 9.936 3.04749 4.36149 27.38 1480.34 1021.019 0.75 0.75 9.934 3.05129 4.36719 27.42 1480.39 1021.052 1.05 1.05 9.930 3.05150 4.36801 27.42 1480.38 1021.058 1.35 1.35 9.928 3.05465 4.37279 27.45 1480.42 1021.085 1.65 1.65 9.927 3.05479 4.37314 27.46 1480.42 1021.088 1.95 1.95 9.925 3.05542 4.37423 27.46 1480.43 1021.095 2.25 2.25 9.924 3.05519 4.37408 27.46 1480.43 1021.096 2.55 2.55 9.923 3.05544 4.37452 27.46 1480.44 1021.100 2.85 2.85 9.923 3.05570 4.37495 27.47 1480.44 1021.103 3.15 3.14 9.923 3.05514 4.37407 27.46 1480.44 1021.100 3.45 3.44 9.923 3.05507 4.37401 27.46 1480.45 1021.101 3.75 3.74 9.924 3.05472 4.37337 27.46 1480.45 1021.099 4.05 4.04 9.924 3.05585 4.37496 27.47 1480.47 1021.108 4.35 4.34 9.924 3.05768 4.37764 27.49 1480.49 1021.124 4.65 4.64 9.921 3.06144 4.38337 27.53 1480.54 1021.157 4.95 4.94 9.914 3.06828 4.39404 27.60 1480.61 1021.216 5.25 5.24 9.910 3.06926 4.39597 27.61 1480.61 1021.228 5.55 5.54 9.906 3.07066 4.39849 27.63 1480.62 1021.243 5.85 5.84 9.899 3.07187 4.40110 27.65 1480.62 1021.259 6.15 6.14 9.895 3.07313 4.40345 27.66 1480.63 1021.273 6.45 6.44 9.891 3.07495 4.40652 27.68 1480.65 1021.291 6.75 6.74 9.886 3.07718 4.41034 27.71 1480.66 1021.314 7.05 7.04 9.878 3.07708 4.41120 27.71 1480.65 1021.320 7.35 7.34 9.870 3.07994 4.41636 27.75 1480.66 1021.350 7.65 7.64 9.864 3.08117 4.41884 27.76 1480.67 1021.365 7.95 7.94 9.858 3.08258 4.42165 27.78 1480.67 1021.382 8.25 8.24 9.845 3.08392 4.42515 27.81 1480.66 1021.403 8.55 8.53 9.834 3.08810 4.43261 27.86 1480.68 1021.445 8.85 8.83 9.828 3.08975 4.43577 27.88 1480.69 1021.464 9.15 9.13 9.825 3.09144 4.43855 27.90 1480.71 1021.481 9.45 9.43 9.823 3.09261 4.44052 27.91 1480.72 1021.493 9.75 9.73 9.819 3.09288 4.44134 27.91 1480.72 1021.499 10.05 10.03 9.818 3.09322 4.44203 27.92 1480.72 1021.504 10.35 10.33 9.816 3.09321 4.44226 27.92 1480.72 1021.506 10.65 10.63 9.815 3.09490 4.44476 27.94 1480.75 1021.521 10.95 10.93 9.812 3.09486 4.44504 27.94 1480.74 1021.524 11.25 11.23 9.812 3.09535 4.44577 27.94 1480.75 1021.530 11.55 11.53 9.813 3.09566 4.44613 27.95 1480.76 1021.533 11.85 11.83 9.813 3.09711 4.44815 27.96 1480.79 1021.545 12.15 12.13 9.816 3.10070 4.45300 27.99 1480.84 1021.572 12.45 12.43 9.816 3.10203 4.45494 28.01 1480.86 1021.584 12.75 12.73 9.814 3.10561 4.46026 28.04 1480.91 1021.614 13.05 13.02 9.814 3.10957 4.46597 28.08 1480.96 1021.646 13.35 13.32 9.814 3.11248 4.47013 28.11 1481.00 1021.670 13.65 13.62 9.817 3.11451 4.47270 28.13 1481.04 1021.685 13.95 13.92 9.817 3.11746 4.47687 28.16 1481.08 1021.709 14.25 14.22 9.817 3.11885 4.47893 28.17 1481.10 1021.722 14.55 14.52 9.817 3.11845 4.47841 28.17 1481.10 1021.720 14.85 14.82 9.816 3.11894 4.47915 28.17 1481.11 1021.725 15.15 15.12 9.814 3.11882 4.47922 28.17 1481.10 1021.727 15.45 15.42 9.812 3.12023 4.48157 28.19 1481.12 1021.741 15.75 15.72 9.808 3.11927 4.48063 28.18 1481.10 1021.738 16.05 16.02 9.805 3.11976 4.48181 28.19 1481.10 1021.746 16.35 16.32 9.804 3.11976 4.48183 28.19 1481.11 1021.747 16.65 16.62 9.804 3.12001 4.48221 28.19 1481.12 1021.750 16.95 16.92 9.804 3.11964 4.48179 28.19 1481.11 1021.750 17.25 17.21 9.802 3.11926 4.48150 28.19 1481.11 1021.749 17.55 17.51 9.800 3.12005 4.48284 28.20 1481.12 1021.758 17.85 17.81 9.796 3.11979 4.48293 28.20 1481.11 1021.760 18.15 18.11 9.794 3.11986 4.48337 28.20 1481.11 1021.764 18.45 18.41 9.786 3.11923 4.48343 28.20 1481.09 1021.766 18.75 18.71 9.783 3.11965 4.48443 28.21 1481.09 1021.773 19.05 19.01 9.781 3.11998 4.48523 28.21 1481.09 1021.779 19.35 19.31 9.774 3.11908 4.48484 28.21 1481.06 1021.778 19.65 19.61 9.767 3.11898 4.48561 28.21 1481.05 1021.784 19.95 19.91 9.762 3.11870 4.48574 28.21 1481.04 1021.786 20.25 20.21 9.763 3.11849 4.48530 28.21 1481.04 1021.785 20.55 20.51 9.760 3.11832 4.48555 28.21 1481.04 1021.788 20.85 20.81 9.750 3.11828 4.48669 28.22 1481.01 1021.796 21.15 21.11 9.747 3.11737 4.48579 28.21 1481.00 1021.793 21.45 21.40 9.746 3.11776 4.48646 28.22 1481.01 1021.798 21.75 21.70 9.746 3.11790 4.48669 28.22 1481.01 1021.800 22.05 22.00 9.747 3.11710 4.48546 28.21 1481.01 1021.795 22.35 22.30 9.749 3.11750 4.48569 28.21 1481.03 1021.797 22.65 22.60 9.750 3.11632 4.48387 28.20 1481.02 1021.789 22.95 22.90 9.747 3.11732 4.48569 28.21 1481.03 1021.800 23.25 23.20 9.743 3.11658 4.48524 28.21 1481.01 1021.799 23.55 23.50 9.739 3.11740 4.48684 28.22 1481.02 1021.809 23.85 23.80 9.739 3.11694 4.48620 28.21 1481.02 1021.807 24.15 24.10 9.738 3.11685 4.48621 28.21 1481.02 1021.808 24.45 24.40 9.734 3.11622 4.48581 28.21 1481.00 1021.808 24.65 24.60 9.733 3.11519 4.48453 28.20 1480.99 1021.802