*2026/01/16 09:57:47.97 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 20:44:57.000 END TIME : UTC 2024/02/15 20:45:16.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 99 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.54 2 Depth metres 0.15 29.46 3 Temperature 'deg C (ITS90)' 8.523 10.017 4 Conductivity S/m 2.77128 3.32788 5 Conductance:Specific S/m 4.13345 4.76397 6 Salinity PSS-78 25.65 30.17 7 Speed:Sound m/s 1472.94 1484.18 8 Density kg/m^3 1019.877 1023.33 $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 : 52 LATITUDE : 48 56.75790 N ! (deg min) LONGITUDE : 125 19.11310 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_204457 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 99 99 MERGEHDR 1.3 2026/01/16 09:53:47 99 99 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 99 99 CALIB 12.1 2026/01/16 09:56:46 99 99 CLEAN 5.3 2026/01/16 09:57:47 99 99 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:46 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 8.523 2.77538 4.13949 25.69 1472.98 1019.905 0.45 0.45 8.528 2.77302 4.13544 25.66 1472.97 1019.885 0.75 0.75 8.523 2.77261 4.13542 25.66 1472.95 1019.886 1.05 1.05 8.523 2.77128 4.13345 25.65 1472.94 1019.877 1.35 1.35 8.523 2.77203 4.13454 25.66 1472.96 1019.884 1.65 1.65 8.525 2.77232 4.13471 25.66 1472.97 1019.886 1.95 1.95 8.529 2.77434 4.13720 25.67 1473.01 1019.901 2.25 2.25 8.531 2.77612 4.13962 25.69 1473.05 1019.915 2.55 2.55 8.532 2.77679 4.14053 25.70 1473.06 1019.921 2.85 2.85 8.532 2.77707 4.14093 25.70 1473.07 1019.924 3.15 3.15 8.534 2.77739 4.14120 25.70 1473.08 1019.927 3.45 3.45 8.535 2.77841 4.14256 25.71 1473.10 1019.936 3.75 3.75 8.538 2.78064 4.14547 25.73 1473.15 1019.952 4.05 4.05 8.541 2.78099 4.14562 25.73 1473.17 1019.954 4.35 4.35 8.574 2.78644 4.14971 25.76 1473.33 1019.976 4.65 4.65 8.616 2.79520 4.15757 25.82 1473.57 1020.018 4.95 4.95 8.718 2.85912 4.23979 26.40 1474.67 1020.454 5.25 5.25 9.077 2.93311 4.30368 26.88 1476.62 1020.781 5.55 5.55 9.477 3.08018 4.46700 28.05 1479.56 1021.641 5.85 5.85 9.699 3.09692 4.46250 28.05 1480.38 1021.604 6.15 6.15 9.845 3.12849 4.48917 28.25 1481.16 1021.741 6.45 6.44 9.921 3.15982 4.52427 28.50 1481.75 1021.927 6.75 6.74 9.952 3.16882 4.53310 28.57 1481.95 1021.974 7.05 7.04 9.982 3.17361 4.53608 28.59 1482.09 1021.990 7.35 7.34 10.001 3.18163 4.54510 28.66 1482.25 1022.039 7.65 7.64 10.015 3.18634 4.55002 28.69 1482.35 1022.066 7.95 7.94 10.017 3.19073 4.55592 28.73 1482.41 1022.099 8.25 8.24 10.015 3.19322 4.55974 28.76 1482.44 1022.121 8.55 8.54 10.003 3.19357 4.56185 28.77 1482.42 1022.135 8.85 8.84 9.986 3.19290 4.56314 28.78 1482.37 1022.144 9.15 9.14 9.970 3.19269 4.56492 28.79 1482.33 1022.156 9.45 9.44 9.970 3.19955 4.57477 28.86 1482.41 1022.211 9.75 9.74 9.996 3.20546 4.57979 28.90 1482.56 1022.238 10.05 10.04 9.995 3.20718 4.58232 28.92 1482.58 1022.253 10.35 10.33 9.991 3.20859 4.58485 28.93 1482.60 1022.268 10.65 10.63 9.993 3.21172 4.58913 28.96 1482.64 1022.293 10.95 10.93 9.993 3.21663 4.59606 29.01 1482.71 1022.332 11.25 11.23 9.993 3.22184 4.60352 29.06 1482.78 1022.373 11.55 11.53 9.992 3.23244 4.61877 29.17 1482.91 1022.458 11.85 11.83 9.991 3.23741 4.62606 29.22 1482.97 1022.499 12.15 12.13 9.990 3.23954 4.62926 29.24 1482.99 1022.518 12.45 12.43 9.986 3.24179 4.63303 29.27 1483.02 1022.540 12.75 12.73 9.982 3.24309 4.63539 29.28 1483.03 1022.554 13.05 13.03 9.977 3.24441 4.63788 29.30 1483.03 1022.569 13.35 13.33 9.968 3.24780 4.64399 29.34 1483.06 1022.605 13.65 13.62 9.965 3.25028 4.64794 29.37 1483.08 1022.628 13.95 13.92 9.960 3.25299 4.65241 29.40 1483.11 1022.654 14.25 14.22 9.956 3.25572 4.65690 29.43 1483.13 1022.680 14.55 14.52 9.949 3.25761 4.66049 29.46 1483.14 1022.701 14.85 14.82 9.943 3.25878 4.66294 29.47 1483.15 1022.716 15.15 15.12 9.941 3.25919 4.66383 29.48 1483.15 1022.722 15.45 15.42 9.939 3.26023 4.66555 29.49 1483.16 1022.733 15.75 15.72 9.939 3.26071 4.66630 29.49 1483.17 1022.738 16.05 16.02 9.937 3.26126 4.66733 29.50 1483.18 1022.745 16.35 16.32 9.933 3.26195 4.66892 29.51 1483.18 1022.756 16.65 16.62 9.931 3.26553 4.67426 29.55 1483.23 1022.786 16.95 16.91 9.925 3.26999 4.68145 29.60 1483.27 1022.827 17.25 17.21 9.919 3.27335 4.68708 29.64 1483.30 1022.859 17.55 17.51 9.913 3.27425 4.68911 29.65 1483.30 1022.872 17.85 17.81 9.909 3.27605 4.69231 29.67 1483.31 1022.891 18.15 18.11 9.904 3.27840 4.69629 29.70 1483.33 1022.914 18.45 18.41 9.900 3.28007 4.69917 29.72 1483.35 1022.932 18.75 18.71 9.899 3.28126 4.70110 29.73 1483.36 1022.944 19.05 19.01 9.898 3.28336 4.70427 29.75 1483.39 1022.962 19.35 19.31 9.898 3.28426 4.70547 29.76 1483.41 1022.970 19.65 19.60 9.898 3.28571 4.70763 29.78 1483.43 1022.983 19.95 19.90 9.897 3.28719 4.70981 29.79 1483.45 1022.996 20.25 20.20 9.897 3.28757 4.71034 29.80 1483.46 1023.000 20.55 20.50 9.899 3.28873 4.71173 29.81 1483.49 1023.009 20.85 20.80 9.901 3.28915 4.71208 29.81 1483.50 1023.012 21.15 21.10 9.905 3.29246 4.71630 29.84 1483.56 1023.036 21.45 21.40 9.910 3.29496 4.71916 29.86 1483.61 1023.053 21.75 21.70 9.913 3.29682 4.72145 29.87 1483.64 1023.067 22.05 22.00 9.918 3.29820 4.72277 29.88 1483.67 1023.075 22.35 22.30 9.921 3.29803 4.72208 29.88 1483.69 1023.072 22.65 22.59 9.924 3.29832 4.72208 29.88 1483.70 1023.073 22.95 22.89 9.927 3.29969 4.72363 29.89 1483.73 1023.083 23.25 23.19 9.931 3.30271 4.72752 29.92 1483.78 1023.105 23.55 23.49 9.930 3.30666 4.73320 29.96 1483.83 1023.137 23.85 23.79 9.928 3.31046 4.73902 30.00 1483.88 1023.170 24.15 24.09 9.928 3.31631 4.74737 30.06 1483.96 1023.217 24.45 24.39 9.927 3.31730 4.74896 30.07 1483.97 1023.227 24.75 24.69 9.927 3.31922 4.75164 30.09 1484.00 1023.243 25.05 24.99 9.930 3.32091 4.75367 30.10 1484.03 1023.255 25.35 25.28 9.932 3.32336 4.75686 30.12 1484.07 1023.274 25.65 25.58 9.932 3.32373 4.75744 30.13 1484.08 1023.279 25.95 25.88 9.931 3.32416 4.75813 30.13 1484.09 1023.284 26.25 26.18 9.931 3.32494 4.75925 30.14 1484.10 1023.291 26.55 26.48 9.930 3.32508 4.75968 30.14 1484.10 1023.295 26.85 26.78 9.927 3.32520 4.76020 30.15 1484.10 1023.299 27.15 27.08 9.927 3.32522 4.76026 30.15 1484.11 1023.301 27.45 27.38 9.926 3.32528 4.76050 30.15 1484.11 1023.303 27.75 27.68 9.925 3.32532 4.76066 30.15 1484.11 1023.305 28.05 27.97 9.925 3.32505 4.76021 30.15 1484.12 1023.304 28.35 28.27 9.924 3.32545 4.76091 30.15 1484.12 1023.310 28.65 28.57 9.925 3.32609 4.76181 30.16 1484.14 1023.316 28.95 28.87 9.927 3.32733 4.76331 30.17 1484.16 1023.325 29.25 29.17 9.928 3.32788 4.76397 30.17 1484.18 1023.330 29.54 29.46 9.928 3.32771 4.76371 30.17 1484.18 1023.330