*2026/01/16 10:37:56.12 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 18:18:59.000 END TIME : UTC 2025/06/24 18:19:27.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 142 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.51 2 Depth metres 0.15 42.4 3 Temperature 'deg C (ITS90)' 12.742 13.651 4 Conductivity S/m 3.34304 3.46724 5 Conductance:Specific S/m 4.32459 4.58674 6 Salinity PSS-78 27.45 29.21 7 Speed:Sound m/s 1492.65 1493.91 8 Density kg/m^3 1020.428 1022.144 $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 : 183 LATITUDE : 49 16.73250 N ! (deg min) LONGITUDE : 125 48.60180 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_181859 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 142 142 MERGEHDR 1.3 2026/01/16 10:35:46 142 142 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:46 142 142 CALIB 12.1 2026/01/16 10:37:19 142 142 CLEAN 5.3 2026/01/16 10:37:56 142 142 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 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 10:36:46 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 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 13.651 3.34304 4.32459 27.45 1493.46 1020.428 0.45 0.45 13.517 3.38081 4.38870 27.89 1493.54 1020.795 0.75 0.75 13.378 3.42006 4.45578 28.35 1493.62 1021.180 1.05 1.05 13.303 3.43482 4.48372 28.54 1493.59 1021.343 1.35 1.35 13.314 3.43686 4.48512 28.55 1493.65 1021.351 1.65 1.65 13.371 3.43751 4.47933 28.52 1493.80 1021.313 1.95 1.95 13.410 3.43771 4.47505 28.49 1493.91 1021.286 2.25 2.25 13.328 3.43801 4.48497 28.55 1493.71 1021.352 2.55 2.55 13.226 3.43913 4.49844 28.64 1493.47 1021.440 2.85 2.84 13.150 3.43729 4.50493 28.68 1493.27 1021.486 3.15 3.14 13.099 3.43751 4.51131 28.72 1493.15 1021.529 3.45 3.44 13.073 3.43742 4.51428 28.74 1493.09 1021.550 3.75 3.74 13.051 3.43753 4.51699 28.76 1493.04 1021.569 4.05 4.04 13.026 3.43794 4.52046 28.78 1492.99 1021.592 4.35 4.34 13.006 3.43895 4.52428 28.80 1492.95 1021.617 4.65 4.64 12.983 3.43804 4.52575 28.81 1492.89 1021.629 4.95 4.94 12.960 3.43781 4.52817 28.83 1492.84 1021.646 5.25 5.24 12.950 3.43756 4.52902 28.83 1492.81 1021.653 5.55 5.54 12.942 3.43839 4.53114 28.85 1492.81 1021.667 5.85 5.84 12.929 3.43732 4.53124 28.85 1492.77 1021.671 6.15 6.14 12.916 3.43749 4.53298 28.86 1492.74 1021.683 6.45 6.44 12.907 3.43806 4.53482 28.87 1492.73 1021.695 6.75 6.74 12.898 3.43804 4.53594 28.88 1492.71 1021.704 7.05 7.04 12.890 3.43808 4.53698 28.88 1492.70 1021.712 7.35 7.33 12.887 3.43877 4.53822 28.89 1492.70 1021.720 7.65 7.63 12.882 3.43818 4.53798 28.89 1492.69 1021.721 7.95 7.93 12.876 3.43798 4.53850 28.89 1492.68 1021.726 8.25 8.23 12.871 3.43885 4.54024 28.90 1492.68 1021.737 8.55 8.53 12.865 3.43835 4.54023 28.90 1492.66 1021.739 8.85 8.83 12.861 3.43902 4.54163 28.91 1492.66 1021.748 9.15 9.13 12.858 3.43888 4.54180 28.91 1492.66 1021.751 9.45 9.43 12.856 3.43865 4.54179 28.91 1492.66 1021.753 9.75 9.73 12.852 3.43889 4.54250 28.92 1492.66 1021.758 10.05 10.03 12.852 3.43894 4.54262 28.92 1492.66 1021.760 10.35 10.33 12.851 3.43927 4.54317 28.92 1492.67 1021.764 10.65 10.63 12.850 3.43875 4.54258 28.92 1492.66 1021.763 10.95 10.93 12.849 3.43900 4.54302 28.92 1492.67 1021.766 11.25 11.23 12.848 3.43907 4.54325 28.92 1492.67 1021.769 11.55 11.53 12.847 3.43900 4.54334 28.92 1492.67 1021.771 11.85 11.82 12.845 3.43913 4.54366 28.92 1492.68 1021.774 12.15 12.12 12.846 3.43880 4.54319 28.92 1492.68 1021.773 12.45 12.42 12.846 3.43936 4.54392 28.93 1492.69 1021.778 12.75 12.72 12.843 3.43961 4.54459 28.93 1492.69 1021.783 13.05 13.02 12.843 3.43965 4.54459 28.93 1492.70 1021.785 13.35 13.32 12.843 3.43940 4.54431 28.93 1492.70 1021.784 13.65 13.62 12.842 3.44015 4.54536 28.93 1492.71 1021.791 13.95 13.92 12.842 3.44015 4.54537 28.93 1492.71 1021.793 14.25 14.22 12.843 3.43983 4.54490 28.93 1492.71 1021.791 14.55 14.52 12.842 3.44114 4.54671 28.94 1492.73 1021.803 14.85 14.82 12.841 3.44126 4.54704 28.95 1492.73 1021.806 15.15 15.12 12.839 3.44162 4.54765 28.95 1492.74 1021.811 15.45 15.42 12.837 3.44182 4.54817 28.95 1492.74 1021.815 15.75 15.72 12.836 3.44219 4.54886 28.96 1492.75 1021.820 16.05 16.01 12.837 3.44102 4.54722 28.95 1492.74 1021.812 16.35 16.31 12.835 3.44146 4.54796 28.95 1492.75 1021.818 16.65 16.61 12.833 3.44091 4.54750 28.95 1492.74 1021.817 16.95 16.91 12.831 3.44071 4.54746 28.95 1492.74 1021.818 17.25 17.21 12.827 3.44141 4.54884 28.96 1492.74 1021.828 17.55 17.51 12.822 3.44164 4.54979 28.96 1492.74 1021.835 17.85 17.81 12.814 3.44070 4.54948 28.96 1492.71 1021.835 18.15 18.11 12.811 3.44127 4.55058 28.97 1492.71 1021.843 18.45 18.41 12.810 3.44027 4.54943 28.96 1492.70 1021.838 18.75 18.71 12.806 3.44036 4.55004 28.96 1492.70 1021.843 19.05 19.01 12.802 3.43949 4.54939 28.96 1492.69 1021.841 19.35 19.31 12.801 3.43975 4.54985 28.96 1492.69 1021.845 19.65 19.61 12.798 3.43894 4.54907 28.96 1492.68 1021.842 19.95 19.91 12.795 3.43853 4.54896 28.95 1492.67 1021.844 20.25 20.20 12.790 3.43896 4.55008 28.96 1492.67 1021.852 20.55 20.50 12.788 3.43804 4.54912 28.95 1492.66 1021.848 20.85 20.80 12.788 3.43871 4.54997 28.96 1492.67 1021.854 21.15 21.10 12.783 3.43820 4.54991 28.96 1492.66 1021.855 21.45 21.40 12.780 3.43781 4.54974 28.96 1492.65 1021.856 21.75 21.70 12.779 3.43837 4.55068 28.96 1492.66 1021.863 22.05 22.00 12.775 3.43782 4.55038 28.96 1492.65 1021.863 22.35 22.30 12.775 3.43785 4.55045 28.96 1492.65 1021.864 22.65 22.60 12.774 3.43711 4.54952 28.96 1492.65 1021.861 22.95 22.90 12.774 3.43774 4.55039 28.96 1492.66 1021.867 23.25 23.20 12.773 3.43686 4.54936 28.95 1492.65 1021.862 23.55 23.50 12.771 3.43753 4.55046 28.96 1492.66 1021.870 23.85 23.80 12.771 3.43701 4.54983 28.96 1492.66 1021.868 24.15 24.09 12.771 3.43716 4.55001 28.96 1492.66 1021.870 24.45 24.39 12.769 3.43699 4.55008 28.96 1492.66 1021.872 24.75 24.69 12.768 3.43650 4.54948 28.95 1492.66 1021.870 25.05 24.99 12.766 3.43709 4.55046 28.96 1492.67 1021.877 25.35 25.29 12.765 3.43716 4.55078 28.96 1492.67 1021.880 25.65 25.59 12.763 3.43735 4.55120 28.97 1492.67 1021.884 25.95 25.89 12.762 3.43652 4.55020 28.96 1492.66 1021.880 26.25 26.19 12.761 3.43695 4.55098 28.96 1492.67 1021.885 26.55 26.49 12.758 3.43769 4.55231 28.97 1492.68 1021.894 26.85 26.79 12.754 3.43763 4.55270 28.97 1492.67 1021.898 27.15 27.09 12.751 3.43758 4.55291 28.98 1492.67 1021.901 27.45 27.39 12.750 3.43909 4.55511 28.99 1492.69 1021.914 27.75 27.69 12.748 3.43847 4.55447 28.99 1492.68 1021.912 28.05 27.99 12.746 3.43943 4.55596 29.00 1492.69 1021.922 28.35 28.28 12.746 3.43905 4.55557 28.99 1492.69 1021.921 28.65 28.58 12.744 3.43867 4.55523 28.99 1492.69 1021.921 28.95 28.88 12.743 3.43889 4.55568 28.99 1492.69 1021.925 29.25 29.18 12.742 3.44129 4.55893 29.02 1492.72 1021.944 29.55 29.48 12.746 3.44104 4.55813 29.01 1492.73 1021.940 29.85 29.78 12.756 3.44119 4.55718 29.01 1492.76 1021.935 30.15 30.08 12.758 3.44238 4.55846 29.01 1492.79 1021.943 30.45 30.38 12.766 3.44198 4.55699 29.00 1492.81 1021.935 30.75 30.68 12.779 3.44388 4.55793 29.01 1492.86 1021.940 31.05 30.98 12.785 3.44589 4.55990 29.03 1492.91 1021.951 31.35 31.28 12.787 3.44540 4.55900 29.02 1492.91 1021.948 31.65 31.58 12.784 3.44537 4.55926 29.02 1492.91 1021.951 31.95 31.88 12.784 3.44531 4.55928 29.02 1492.91 1021.952 32.25 32.17 12.785 3.44572 4.55964 29.02 1492.92 1021.955 32.55 32.47 12.785 3.44550 4.55931 29.02 1492.93 1021.954 32.85 32.77 12.789 3.44552 4.55893 29.02 1492.94 1021.953 33.15 33.07 12.792 3.44592 4.55906 29.02 1492.96 1021.955 33.45 33.37 12.792 3.44694 4.56039 29.03 1492.97 1021.963 33.75 33.67 12.794 3.44637 4.55943 29.02 1492.98 1021.959 34.05 33.97 12.797 3.44686 4.55969 29.02 1493.00 1021.961 34.35 34.27 12.799 3.44865 4.56184 29.04 1493.03 1021.974 34.65 34.57 12.800 3.44908 4.56226 29.04 1493.04 1021.978 34.95 34.87 12.800 3.44911 4.56234 29.04 1493.04 1021.979 35.25 35.17 12.801 3.44903 4.56214 29.04 1493.05 1021.979 35.55 35.47 12.800 3.44950 4.56287 29.05 1493.06 1021.985 35.85 35.77 12.801 3.44942 4.56260 29.05 1493.06 1021.984 36.15 36.07 12.803 3.45023 4.56346 29.05 1493.08 1021.990 36.45 36.36 12.804 3.45119 4.56454 29.06 1493.10 1021.997 36.75 36.66 12.805 3.45251 4.56624 29.07 1493.12 1022.008 37.05 36.96 12.805 3.45243 4.56604 29.07 1493.13 1022.008 37.35 37.26 12.806 3.45339 4.56729 29.08 1493.14 1022.016 37.65 37.56 12.807 3.45355 4.56741 29.08 1493.15 1022.018 37.95 37.86 12.806 3.45405 4.56808 29.08 1493.16 1022.023 38.25 38.16 12.806 3.45448 4.56870 29.09 1493.17 1022.027 38.55 38.46 12.806 3.45446 4.56864 29.09 1493.17 1022.028 38.85 38.76 12.806 3.45430 4.56843 29.09 1493.18 1022.028 39.15 39.06 12.806 3.45456 4.56885 29.09 1493.18 1022.032 39.45 39.36 12.805 3.45473 4.56916 29.09 1493.19 1022.035 39.75 39.66 12.804 3.45498 4.56962 29.09 1493.19 1022.039 40.05 39.95 12.802 3.45559 4.57062 29.10 1493.20 1022.046 40.35 40.25 12.801 3.45561 4.57077 29.10 1493.20 1022.048 40.65 40.55 12.798 3.45562 4.57112 29.10 1493.20 1022.052 40.95 40.85 12.794 3.45719 4.57368 29.12 1493.21 1022.067 41.25 41.15 12.787 3.45937 4.57743 29.15 1493.23 1022.090 41.55 41.45 12.781 3.46386 4.58410 29.19 1493.26 1022.128 41.85 41.75 12.784 3.46604 4.58662 29.21 1493.30 1022.143 42.15 42.05 12.792 3.46683 4.58674 29.21 1493.33 1022.144 42.51 42.40 12.797 3.46724 4.58663 29.21 1493.36 1022.144