*2026/01/16 10:37:56.26 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 18:54:06.000 END TIME : UTC 2025/06/24 18:54:33.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 139 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.47 2 Depth metres 0.15 41.37 3 Temperature 'deg C (ITS90)' 12.857 14.361 4 Conductivity S/m 3.03343 3.46945 5 Conductance:Specific S/m 3.85334 4.57947 6 Salinity PSS-78 24.2 29.17 7 Speed:Sound m/s 1491.91 1493.64 8 Density kg/m^3 1017.794 1022.09 $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 : 184 LATITUDE : 49 14.52000 N ! (deg min) LONGITUDE : 125 50.76970 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_185406 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 139 139 MERGEHDR 1.3 2026/01/16 10:35:46 139 139 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:46 139 139 CALIB 12.1 2026/01/16 10:37:19 139 139 CLEAN 5.3 2026/01/16 10:37:56 139 139 $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 14.361 3.03343 3.85334 24.20 1492.04 1017.794 0.45 0.45 14.000 3.11112 3.98859 25.12 1491.91 1018.571 0.75 0.75 13.463 3.31358 4.30754 27.31 1492.68 1020.364 1.05 1.05 13.304 3.42651 4.47276 28.46 1493.51 1021.284 1.35 1.35 13.293 3.43027 4.47892 28.51 1493.53 1021.320 1.65 1.65 13.308 3.43227 4.47989 28.51 1493.59 1021.324 1.95 1.95 13.316 3.43309 4.47994 28.52 1493.62 1021.325 2.25 2.25 13.322 3.43306 4.47919 28.51 1493.64 1021.321 2.55 2.55 13.281 3.43481 4.48635 28.56 1493.56 1021.367 2.85 2.85 13.215 3.43604 4.49567 28.62 1493.42 1021.428 3.15 3.15 13.168 3.43668 4.50200 28.66 1493.31 1021.469 3.45 3.45 13.132 3.43796 4.50798 28.70 1493.24 1021.508 3.75 3.74 13.108 3.44026 4.51380 28.74 1493.21 1021.544 4.05 4.04 13.084 3.44221 4.51927 28.77 1493.18 1021.578 4.35 4.34 13.071 3.44423 4.52349 28.80 1493.17 1021.604 4.65 4.64 13.053 3.44426 4.52558 28.82 1493.13 1021.619 4.95 4.94 13.042 3.44429 4.52692 28.82 1493.11 1021.629 5.25 5.24 13.039 3.44642 4.53010 28.85 1493.13 1021.648 5.55 5.54 13.028 3.44582 4.53065 28.85 1493.10 1021.654 5.85 5.84 13.013 3.44627 4.53300 28.86 1493.08 1021.670 6.15 6.14 13.004 3.44564 4.53321 28.87 1493.05 1021.673 6.45 6.44 12.999 3.44664 4.53514 28.88 1493.05 1021.686 6.75 6.74 13.000 3.44736 4.53601 28.88 1493.07 1021.692 7.05 7.04 12.999 3.44798 4.53695 28.89 1493.08 1021.698 7.35 7.34 12.996 3.44734 4.53649 28.89 1493.07 1021.697 7.65 7.64 12.993 3.44801 4.53766 28.90 1493.07 1021.705 7.95 7.94 12.991 3.44726 4.53696 28.89 1493.06 1021.703 8.25 8.23 12.990 3.44745 4.53731 28.89 1493.07 1021.706 8.55 8.53 12.989 3.44788 4.53795 28.90 1493.08 1021.711 8.85 8.83 12.987 3.44758 4.53784 28.90 1493.07 1021.712 9.15 9.13 12.985 3.44851 4.53930 28.91 1493.08 1021.721 9.45 9.43 12.986 3.44855 4.53922 28.90 1493.09 1021.722 9.75 9.73 12.987 3.45022 4.54133 28.92 1493.12 1021.735 10.05 10.03 12.987 3.45096 4.54232 28.93 1493.13 1021.742 10.35 10.33 12.987 3.45201 4.54373 28.94 1493.14 1021.751 10.65 10.63 12.986 3.45350 4.54581 28.95 1493.16 1021.763 10.95 10.93 12.985 3.45338 4.54567 28.95 1493.17 1021.764 11.25 11.23 12.984 3.45400 4.54664 28.96 1493.17 1021.771 11.55 11.53 12.979 3.45480 4.54825 28.97 1493.18 1021.781 11.85 11.83 12.972 3.45484 4.54923 28.97 1493.16 1021.789 12.15 12.13 12.962 3.45626 4.55228 28.99 1493.16 1021.808 12.45 12.42 12.956 3.45763 4.55484 29.01 1493.16 1021.824 12.75 12.72 12.954 3.45849 4.55620 29.02 1493.17 1021.833 13.05 13.02 12.949 3.45843 4.55664 29.02 1493.17 1021.837 13.35 13.32 12.942 3.45874 4.55792 29.03 1493.16 1021.846 13.65 13.62 12.936 3.45982 4.56011 29.05 1493.16 1021.860 13.95 13.92 12.927 3.46149 4.56340 29.07 1493.16 1021.881 14.25 14.22 12.917 3.46168 4.56475 29.08 1493.14 1021.890 14.55 14.52 12.908 3.46176 4.56599 29.09 1493.12 1021.900 14.85 14.82 12.900 3.46120 4.56617 29.09 1493.10 1021.903 15.15 15.12 12.897 3.46160 4.56708 29.09 1493.10 1021.909 15.45 15.42 12.894 3.46152 4.56739 29.09 1493.10 1021.913 15.75 15.72 12.888 3.46142 4.56793 29.10 1493.09 1021.918 16.05 16.02 12.886 3.46222 4.56930 29.11 1493.10 1021.927 16.35 16.32 12.883 3.46230 4.56973 29.11 1493.10 1021.931 16.65 16.61 12.879 3.46272 4.57080 29.12 1493.10 1021.938 16.95 16.91 12.874 3.46234 4.57087 29.12 1493.08 1021.941 17.25 17.21 12.872 3.46233 4.57114 29.12 1493.08 1021.944 17.55 17.51 12.871 3.46290 4.57195 29.12 1493.09 1021.949 17.85 17.81 12.870 3.46299 4.57221 29.13 1493.10 1021.952 18.15 18.11 12.869 3.46308 4.57249 29.13 1493.10 1021.955 18.45 18.41 12.868 3.46284 4.57227 29.13 1493.10 1021.955 18.75 18.71 12.866 3.46316 4.57286 29.13 1493.10 1021.960 19.05 19.01 12.864 3.46342 4.57346 29.13 1493.11 1021.965 19.35 19.31 12.864 3.46273 4.57257 29.13 1493.10 1021.961 19.65 19.61 12.863 3.46212 4.57190 29.12 1493.10 1021.959 19.95 19.91 12.861 3.46296 4.57326 29.13 1493.11 1021.968 20.25 20.21 12.859 3.46269 4.57312 29.13 1493.10 1021.969 20.55 20.50 12.859 3.46334 4.57403 29.14 1493.11 1021.975 20.85 20.80 12.858 3.46268 4.57322 29.13 1493.11 1021.972 21.15 21.10 12.858 3.46334 4.57408 29.14 1493.12 1021.978 21.45 21.40 12.857 3.46331 4.57417 29.14 1493.13 1021.980 21.75 21.70 12.858 3.46305 4.57374 29.13 1493.13 1021.979 22.05 22.00 12.859 3.46356 4.57433 29.14 1493.14 1021.983 22.35 22.30 12.858 3.46429 4.57541 29.15 1493.15 1021.990 22.65 22.60 12.860 3.46410 4.57491 29.14 1493.16 1021.989 22.95 22.90 12.861 3.46416 4.57482 29.14 1493.17 1021.989 23.25 23.20 12.862 3.46467 4.57539 29.15 1493.18 1021.993 23.55 23.50 12.864 3.46531 4.57604 29.15 1493.20 1021.998 23.85 23.80 12.865 3.46514 4.57567 29.15 1493.20 1021.997 24.15 24.10 12.867 3.46592 4.57647 29.15 1493.22 1022.003 24.45 24.39 12.868 3.46559 4.57593 29.15 1493.22 1022.001 24.75 24.69 12.869 3.46624 4.57667 29.15 1493.24 1022.006 25.05 24.99 12.868 3.46580 4.57612 29.15 1493.24 1022.004 25.35 25.29 12.868 3.46587 4.57629 29.15 1493.24 1022.007 25.65 25.59 12.869 3.46621 4.57654 29.15 1493.25 1022.009 25.95 25.89 12.868 3.46670 4.57731 29.16 1493.26 1022.015 26.25 26.19 12.870 3.46637 4.57672 29.15 1493.27 1022.012 26.55 26.49 12.869 3.46606 4.57638 29.15 1493.27 1022.012 26.85 26.79 12.869 3.46632 4.57672 29.15 1493.27 1022.015 27.15 27.09 12.869 3.46694 4.57752 29.16 1493.29 1022.021 27.45 27.39 12.869 3.46690 4.57747 29.16 1493.29 1022.022 27.75 27.69 12.871 3.46673 4.57707 29.16 1493.30 1022.021 28.05 27.99 12.871 3.46651 4.57671 29.15 1493.30 1022.020 28.35 28.28 12.871 3.46666 4.57694 29.15 1493.31 1022.022 28.65 28.58 12.873 3.46652 4.57649 29.15 1493.32 1022.021 28.95 28.88 12.874 3.46718 4.57730 29.16 1493.33 1022.027 29.25 29.18 12.873 3.46752 4.57780 29.16 1493.34 1022.031 29.55 29.48 12.872 3.46727 4.57766 29.16 1493.33 1022.031 29.85 29.78 12.873 3.46769 4.57810 29.16 1493.35 1022.035 30.15 30.08 12.874 3.46718 4.57726 29.16 1493.35 1022.031 30.45 30.38 12.874 3.46805 4.57846 29.17 1493.36 1022.039 30.75 30.68 12.874 3.46727 4.57736 29.16 1493.36 1022.034 31.05 30.98 12.874 3.46792 4.57824 29.16 1493.37 1022.041 31.35 31.28 12.874 3.46757 4.57775 29.16 1493.37 1022.039 31.65 31.58 12.875 3.46740 4.57744 29.16 1493.38 1022.039 31.95 31.88 12.876 3.46744 4.57741 29.16 1493.38 1022.040 32.25 32.17 12.876 3.46779 4.57780 29.16 1493.39 1022.043 32.55 32.47 12.876 3.46757 4.57752 29.16 1493.40 1022.043 32.85 32.77 12.876 3.46809 4.57818 29.16 1493.41 1022.047 33.15 33.07 12.877 3.46823 4.57829 29.16 1493.42 1022.049 33.45 33.37 12.878 3.46807 4.57790 29.16 1493.42 1022.048 33.75 33.67 12.881 3.46898 4.57877 29.17 1493.44 1022.054 34.05 33.97 12.882 3.46845 4.57798 29.16 1493.45 1022.051 34.35 34.27 12.889 3.46811 4.57671 29.15 1493.46 1022.044 34.65 34.57 12.880 3.46813 4.57775 29.16 1493.45 1022.052 34.95 34.87 12.878 3.46877 4.57888 29.17 1493.45 1022.060 35.25 35.17 12.879 3.46783 4.57753 29.16 1493.45 1022.054 35.55 35.47 12.880 3.46881 4.57865 29.17 1493.47 1022.061 35.85 35.77 12.881 3.46848 4.57810 29.16 1493.47 1022.059 36.15 36.06 12.884 3.46806 4.57716 29.15 1493.48 1022.055 36.45 36.36 12.886 3.46911 4.57838 29.16 1493.50 1022.063 36.75 36.66 12.880 3.46889 4.57881 29.17 1493.49 1022.067 37.05 36.96 12.879 3.46870 4.57862 29.16 1493.49 1022.067 37.35 37.26 12.879 3.46825 4.57804 29.16 1493.49 1022.065 37.65 37.56 12.880 3.46862 4.57838 29.16 1493.50 1022.068 37.95 37.86 12.884 3.46833 4.57757 29.16 1493.51 1022.065 38.25 38.16 12.883 3.46848 4.57792 29.16 1493.52 1022.068 38.55 38.46 12.879 3.46784 4.57750 29.16 1493.50 1022.068 38.85 38.76 12.879 3.46863 4.57861 29.16 1493.52 1022.075 39.15 39.06 12.878 3.46837 4.57833 29.16 1493.52 1022.075 39.45 39.36 12.877 3.46901 4.57929 29.17 1493.53 1022.081 39.75 39.66 12.878 3.46882 4.57893 29.17 1493.53 1022.081 40.05 39.95 12.878 3.46859 4.57863 29.16 1493.53 1022.080 40.35 40.25 12.879 3.46859 4.57857 29.16 1493.54 1022.081 40.65 40.55 12.880 3.46896 4.57882 29.16 1493.55 1022.083 40.95 40.85 12.881 3.46895 4.57877 29.16 1493.56 1022.084 41.25 41.15 12.880 3.46936 4.57937 29.17 1493.57 1022.089 41.47 41.37 12.880 3.46945 4.57947 29.17 1493.57 1022.090