*2026/01/16 10:37:56.41 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 20:17:54.000 END TIME : UTC 2025/06/24 20:18:21.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 138 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.33 2 Depth metres 0.15 41.22 3 Temperature 'deg C (ITS90)' 12.936 13.225 4 Conductivity S/m 3.45481 3.49636 5 Conductance:Specific S/m 4.51908 4.60774 6 Salinity PSS-78 28.78 29.37 7 Speed:Sound m/s 1493.43 1494.01 8 Density kg/m^3 1021.55 1022.234 $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 : 186 LATITUDE : 49 15.36750 N ! (deg min) LONGITUDE : 125 52.27510 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_201754 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 138 138 MERGEHDR 1.3 2026/01/16 10:35:46 138 138 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:47 138 138 CALIB 12.1 2026/01/16 10:37:19 138 138 CLEAN 5.3 2026/01/16 10:37:56 138 138 $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 10:36:47 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 13.131 3.46998 4.55012 29.00 1493.54 1021.724 0.45 0.45 13.146 3.46545 4.54234 28.94 1493.53 1021.681 0.75 0.75 13.163 3.46260 4.53665 28.90 1493.54 1021.649 1.05 1.05 13.174 3.46438 4.53760 28.91 1493.60 1021.654 1.35 1.35 13.180 3.46276 4.53475 28.89 1493.60 1021.639 1.65 1.65 13.204 3.45833 4.52616 28.83 1493.61 1021.590 1.95 1.95 13.225 3.45481 4.51908 28.78 1493.63 1021.550 2.25 2.25 13.204 3.45485 4.52154 28.80 1493.59 1021.567 2.55 2.54 13.177 3.46082 4.53262 28.88 1493.59 1021.633 2.85 2.84 13.154 3.46585 4.54193 28.94 1493.59 1021.688 3.15 3.14 13.136 3.47057 4.55031 29.00 1493.60 1021.737 3.45 3.44 13.124 3.47020 4.55118 29.00 1493.57 1021.745 3.75 3.74 13.122 3.46995 4.55114 29.00 1493.57 1021.746 4.05 4.04 13.108 3.46927 4.55195 29.01 1493.53 1021.753 4.35 4.34 13.093 3.46852 4.55269 29.01 1493.49 1021.761 4.65 4.64 13.086 3.46857 4.55360 29.02 1493.48 1021.768 4.95 4.94 13.079 3.46826 4.55401 29.02 1493.47 1021.772 5.25 5.24 13.071 3.46838 4.55519 29.03 1493.45 1021.781 5.55 5.54 13.070 3.46815 4.55502 29.02 1493.45 1021.781 5.85 5.84 13.069 3.46887 4.55602 29.03 1493.46 1021.788 6.15 6.14 13.066 3.46848 4.55590 29.03 1493.45 1021.789 6.45 6.44 13.062 3.46894 4.55700 29.04 1493.45 1021.797 6.75 6.73 13.056 3.46869 4.55738 29.04 1493.44 1021.801 7.05 7.03 13.053 3.46897 4.55802 29.04 1493.44 1021.806 7.35 7.33 13.050 3.46775 4.55685 29.04 1493.43 1021.802 7.65 7.63 13.050 3.46779 4.55690 29.04 1493.43 1021.803 7.95 7.93 13.049 3.46812 4.55750 29.04 1493.44 1021.808 8.25 8.23 13.051 3.46793 4.55692 29.04 1493.45 1021.805 8.55 8.53 13.054 3.46934 4.55846 29.05 1493.47 1021.815 8.85 8.83 13.055 3.46914 4.55807 29.04 1493.48 1021.814 9.15 9.13 13.055 3.46878 4.55764 29.04 1493.48 1021.813 9.45 9.43 13.052 3.46927 4.55863 29.05 1493.48 1021.820 9.75 9.73 13.051 3.46881 4.55809 29.04 1493.48 1021.818 10.05 10.03 13.052 3.46930 4.55864 29.05 1493.49 1021.822 10.35 10.33 13.052 3.46870 4.55783 29.04 1493.49 1021.819 10.65 10.63 13.052 3.46923 4.55853 29.05 1493.50 1021.824 10.95 10.92 13.053 3.46849 4.55743 29.04 1493.50 1021.819 11.25 11.22 13.052 3.46848 4.55755 29.04 1493.50 1021.822 11.55 11.52 13.049 3.46902 4.55859 29.05 1493.51 1021.829 11.85 11.82 13.045 3.46856 4.55845 29.04 1493.50 1021.830 12.15 12.12 13.043 3.46844 4.55854 29.05 1493.49 1021.832 12.45 12.42 13.042 3.46888 4.55923 29.05 1493.50 1021.837 12.75 12.72 13.043 3.46836 4.55852 29.04 1493.50 1021.834 13.05 13.02 13.040 3.46846 4.55895 29.05 1493.50 1021.838 13.35 13.32 13.038 3.46872 4.55950 29.05 1493.50 1021.843 13.65 13.62 13.035 3.46893 4.56016 29.06 1493.50 1021.848 13.95 13.92 13.036 3.46829 4.55918 29.05 1493.50 1021.844 14.25 14.22 13.037 3.46902 4.56011 29.05 1493.52 1021.850 14.55 14.52 13.036 3.46880 4.55987 29.05 1493.52 1021.850 14.85 14.82 13.037 3.46946 4.56061 29.06 1493.53 1021.855 15.15 15.11 13.036 3.46913 4.56037 29.06 1493.53 1021.855 15.45 15.41 13.035 3.46842 4.55948 29.05 1493.53 1021.852 15.75 15.71 13.035 3.46873 4.55990 29.05 1493.54 1021.856 16.05 16.01 13.036 3.46923 4.56051 29.06 1493.55 1021.860 16.35 16.31 13.037 3.46952 4.56078 29.06 1493.56 1021.863 16.65 16.61 13.037 3.46889 4.55992 29.05 1493.56 1021.859 16.95 16.91 13.037 3.46912 4.56021 29.05 1493.56 1021.862 17.25 17.21 13.034 3.46996 4.56165 29.06 1493.57 1021.872 17.55 17.51 13.034 3.46902 4.56037 29.06 1493.57 1021.866 17.85 17.81 13.034 3.46956 4.56111 29.06 1493.58 1021.871 18.15 18.11 13.035 3.46981 4.56140 29.06 1493.58 1021.874 18.45 18.41 13.033 3.46854 4.55994 29.05 1493.57 1021.867 18.75 18.71 13.031 3.46923 4.56111 29.06 1493.58 1021.875 19.05 19.00 13.018 3.46821 4.56123 29.06 1493.54 1021.879 19.35 19.30 13.008 3.46911 4.56371 29.08 1493.53 1021.895 19.65 19.60 13.006 3.46876 4.56349 29.07 1493.52 1021.895 19.95 19.90 13.000 3.46914 4.56464 29.08 1493.52 1021.904 20.25 20.20 12.996 3.46989 4.56607 29.09 1493.52 1021.913 20.55 20.50 12.993 3.46978 4.56633 29.09 1493.52 1021.916 20.85 20.80 12.985 3.46962 4.56704 29.10 1493.50 1021.922 21.15 21.10 12.978 3.47014 4.56864 29.11 1493.50 1021.933 21.45 21.40 12.975 3.47101 4.57012 29.12 1493.50 1021.943 21.75 21.70 12.971 3.47072 4.57023 29.12 1493.49 1021.945 22.05 22.00 12.969 3.47021 4.56983 29.12 1493.49 1021.945 22.35 22.30 12.969 3.47137 4.57134 29.13 1493.51 1021.954 22.65 22.60 12.968 3.47098 4.57089 29.12 1493.50 1021.953 22.95 22.90 12.969 3.47079 4.57050 29.12 1493.51 1021.952 23.25 23.19 12.971 3.47140 4.57118 29.12 1493.52 1021.957 23.55 23.49 12.970 3.47136 4.57115 29.12 1493.53 1021.958 23.85 23.79 12.968 3.47172 4.57192 29.13 1493.53 1021.964 24.15 24.09 12.966 3.47212 4.57271 29.13 1493.53 1021.970 24.45 24.39 12.963 3.47204 4.57296 29.14 1493.53 1021.973 24.75 24.69 12.960 3.47214 4.57341 29.14 1493.53 1021.977 25.05 24.99 12.956 3.47330 4.57538 29.15 1493.54 1021.989 25.35 25.29 12.956 3.47317 4.57529 29.15 1493.54 1021.990 25.65 25.59 12.953 3.47444 4.57731 29.17 1493.55 1022.003 25.95 25.89 12.951 3.47533 4.57873 29.18 1493.56 1022.012 26.25 26.19 12.949 3.47650 4.58047 29.19 1493.58 1022.023 26.55 26.49 12.946 3.47650 4.58081 29.19 1493.57 1022.027 26.85 26.79 12.944 3.47605 4.58047 29.19 1493.57 1022.026 27.15 27.08 12.944 3.47654 4.58116 29.19 1493.58 1022.031 27.45 27.38 12.944 3.47675 4.58139 29.19 1493.59 1022.034 27.75 27.68 12.944 3.47724 4.58207 29.20 1493.60 1022.039 28.05 27.98 12.941 3.47825 4.58372 29.21 1493.60 1022.049 28.35 28.28 12.940 3.47994 4.58607 29.23 1493.63 1022.064 28.65 28.58 12.941 3.48130 4.58781 29.24 1493.65 1022.074 28.95 28.88 12.939 3.48049 4.58697 29.23 1493.64 1022.071 29.25 29.18 12.938 3.48007 4.58659 29.23 1493.63 1022.071 29.55 29.48 12.937 3.48054 4.58722 29.23 1493.64 1022.075 29.85 29.78 12.938 3.48010 4.58656 29.23 1493.65 1022.073 30.15 30.08 12.939 3.48113 4.58780 29.24 1493.66 1022.081 30.45 30.38 12.939 3.48212 4.58911 29.25 1493.68 1022.089 30.75 30.67 12.940 3.48179 4.58858 29.24 1493.68 1022.088 31.05 30.97 12.939 3.48257 4.58970 29.25 1493.69 1022.095 31.35 31.27 12.939 3.48376 4.59122 29.26 1493.71 1022.104 31.65 31.57 12.940 3.48403 4.59149 29.26 1493.72 1022.107 31.95 31.87 12.940 3.48005 4.58629 29.23 1493.68 1022.080 32.25 32.17 12.939 3.48221 4.58916 29.25 1493.71 1022.097 32.55 32.47 12.940 3.48038 4.58671 29.23 1493.70 1022.085 32.85 32.77 12.940 3.47955 4.58563 29.22 1493.69 1022.080 33.15 33.07 12.941 3.48133 4.58781 29.24 1493.72 1022.093 33.45 33.37 12.940 3.48036 4.58671 29.23 1493.71 1022.089 33.75 33.67 12.940 3.48195 4.58878 29.24 1493.73 1022.101 34.05 33.97 12.939 3.48337 4.59069 29.26 1493.75 1022.113 34.35 34.27 12.939 3.48346 4.59084 29.26 1493.76 1022.115 34.65 34.56 12.940 3.48426 4.59183 29.26 1493.77 1022.122 34.95 34.86 12.940 3.48339 4.59071 29.26 1493.77 1022.117 35.25 35.16 12.939 3.48301 4.59026 29.25 1493.77 1022.116 35.55 35.46 12.940 3.48212 4.58893 29.24 1493.77 1022.110 35.85 35.76 12.941 3.48337 4.59048 29.25 1493.79 1022.119 36.15 36.06 12.940 3.48628 4.59441 29.28 1493.82 1022.142 36.45 36.36 12.939 3.48504 4.59294 29.27 1493.81 1022.135 36.75 36.66 12.939 3.48373 4.59119 29.26 1493.80 1022.127 37.05 36.96 12.939 3.48556 4.59360 29.28 1493.82 1022.142 37.35 37.26 12.936 3.48783 4.59693 29.30 1493.85 1022.161 37.65 37.56 12.937 3.48715 4.59594 29.29 1493.85 1022.157 37.95 37.86 12.938 3.48832 4.59741 29.30 1493.87 1022.166 38.25 38.15 12.939 3.48779 4.59657 29.30 1493.87 1022.163 38.55 38.45 12.939 3.49201 4.60220 29.34 1493.92 1022.195 38.85 38.75 12.940 3.48866 4.59760 29.30 1493.89 1022.171 39.15 39.05 12.940 3.48701 4.59542 29.29 1493.88 1022.160 39.45 39.35 12.939 3.48650 4.59488 29.28 1493.87 1022.159 39.75 39.65 12.939 3.49079 4.60058 29.32 1493.92 1022.191 40.05 39.95 12.938 3.49358 4.60433 29.35 1493.96 1022.213 40.35 40.25 12.939 3.49531 4.60647 29.36 1493.98 1022.226 40.65 40.55 12.940 3.49636 4.60774 29.37 1494.00 1022.234 40.95 40.85 12.941 3.49494 4.60582 29.36 1493.99 1022.225 41.33 41.22 12.941 3.49550 4.60655 29.37 1494.01 1022.230