*2026/01/16 09:57:47.24 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/30 21:46:02.000 END TIME : UTC 2024/01/30 21:46:19.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 86 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.65 2 Depth metres 0.15 25.61 3 Temperature 'deg C (ITS90)' 9.039 10.009 4 Conductivity S/m 1.62913 3.42405 5 Conductance:Specific S/m 2.393 4.89029 6 Salinity PSS-78 14.14 31.07 7 Speed:Sound m/s 1460.86 1485.51 8 Density kg/m^3 1010.834 1024.002 $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 : 21 LATITUDE : 49 41.76250 N ! (deg min) LONGITUDE : 126 35.91190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240130_214602 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 86 86 MERGEHDR 1.3 2026/01/16 09:53:44 86 86 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 86 86 CALIB 12.1 2026/01/16 09:56:45 86 86 CLEAN 5.3 2026/01/16 09:57:47 86 86 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 9.039 1.62913 2.39300 14.14 1460.86 1010.834 0.45 0.45 9.092 1.71832 2.52013 14.97 1462.07 1011.470 0.75 0.76 9.097 1.73439 2.54329 15.12 1462.28 1011.587 1.05 1.06 9.106 1.80005 2.63893 15.74 1463.07 1012.071 1.35 1.36 9.121 1.85276 2.71502 16.23 1463.74 1012.456 1.65 1.66 9.143 1.94087 2.84224 17.06 1464.84 1013.103 1.95 1.96 9.152 1.94396 2.84604 17.09 1464.91 1013.123 2.25 2.27 9.155 1.94678 2.84992 17.11 1464.96 1013.144 2.55 2.57 9.162 1.99993 2.92716 17.62 1465.61 1013.540 2.85 2.87 9.169 2.03082 2.97173 17.91 1466.00 1013.769 3.15 3.17 9.175 2.06158 3.01618 18.21 1466.39 1013.997 3.45 3.47 9.187 2.09847 3.06913 18.56 1466.86 1014.270 3.75 3.77 9.203 2.15169 3.14551 19.06 1467.54 1014.664 4.05 4.08 9.228 2.27742 3.32684 20.27 1469.12 1015.602 4.35 4.38 9.271 2.38648 3.48174 21.31 1470.55 1016.408 4.65 4.68 9.306 2.51721 3.66871 22.57 1472.23 1017.387 4.95 4.98 9.310 2.54228 3.70486 22.82 1472.54 1017.579 5.25 5.28 9.323 2.60022 3.78783 23.38 1473.28 1018.017 5.55 5.58 9.331 2.64143 3.84695 23.78 1473.81 1018.330 5.85 5.88 9.360 2.71189 3.94624 24.46 1474.75 1018.857 6.15 6.18 9.387 2.76702 4.02335 24.99 1475.50 1019.266 6.45 6.48 9.408 2.84211 4.13003 25.72 1476.47 1019.836 6.75 6.78 9.451 2.96916 4.30920 26.96 1478.15 1020.796 7.05 7.08 9.482 2.99484 4.34262 27.19 1478.55 1020.975 7.35 7.38 9.499 2.99508 4.34088 27.18 1478.60 1020.966 7.65 7.68 9.498 2.99980 4.34782 27.23 1478.66 1021.005 7.95 7.98 9.510 3.01052 4.36186 27.33 1478.83 1021.081 8.25 8.28 9.538 3.02928 4.38543 27.50 1479.14 1021.208 8.55 8.58 9.593 3.16114 4.56911 28.78 1480.91 1022.201 8.85 8.87 9.659 3.22691 4.65523 29.39 1481.90 1022.667 9.15 9.17 9.702 3.26272 4.70109 29.71 1482.46 1022.915 9.45 9.47 9.724 3.26990 4.70838 29.77 1482.61 1022.955 9.75 9.77 9.703 3.27034 4.71187 29.79 1482.57 1022.977 10.05 10.07 9.688 3.26956 4.71284 29.79 1482.52 1022.984 10.35 10.37 9.662 3.26775 4.71369 29.79 1482.44 1022.991 10.65 10.67 9.664 3.27120 4.71843 29.83 1482.49 1023.019 10.95 10.97 9.684 3.28039 4.72894 29.90 1482.66 1023.076 11.25 11.27 9.661 3.29254 4.74969 30.05 1482.75 1023.192 11.55 11.56 9.643 3.30387 4.76842 30.17 1482.85 1023.297 11.85 11.86 9.670 3.31354 4.77869 30.25 1483.04 1023.353 12.15 12.16 9.685 3.31475 4.77843 30.25 1483.10 1023.352 12.45 12.46 9.711 3.31910 4.78099 30.27 1483.23 1023.365 12.75 12.76 9.731 3.32664 4.78912 30.33 1483.38 1023.410 13.05 13.06 9.771 3.33159 4.79074 30.35 1483.55 1023.418 13.35 13.36 9.795 3.33409 4.79106 30.35 1483.65 1023.419 13.65 13.66 9.817 3.33904 4.79515 30.38 1483.77 1023.441 13.95 13.95 9.836 3.34225 4.79714 30.40 1483.87 1023.452 14.25 14.25 9.848 3.34510 4.79953 30.42 1483.94 1023.466 14.55 14.55 9.864 3.34961 4.80378 30.45 1484.04 1023.490 14.85 14.85 9.891 3.35473 4.80742 30.48 1484.18 1023.509 15.15 15.15 9.913 3.36335 4.81675 30.55 1484.35 1023.560 15.45 15.45 9.924 3.37364 4.83000 30.64 1484.51 1023.633 15.75 15.75 9.934 3.38024 4.83802 30.70 1484.62 1023.678 16.05 16.05 9.941 3.38616 4.84561 30.75 1484.71 1023.720 16.35 16.34 9.948 3.38950 4.84935 30.78 1484.78 1023.742 16.65 16.64 9.953 3.39006 4.84948 30.78 1484.80 1023.743 16.95 16.94 9.956 3.39053 4.84974 30.78 1484.82 1023.746 17.25 17.24 9.959 3.39118 4.85026 30.79 1484.84 1023.750 17.55 17.54 9.964 3.39252 4.85151 30.80 1484.87 1023.758 17.85 17.84 9.966 3.39382 4.85300 30.81 1484.90 1023.767 18.15 18.14 9.971 3.39473 4.85360 30.81 1484.93 1023.771 18.45 18.44 9.980 3.39626 4.85457 30.82 1484.98 1023.777 18.75 18.73 9.985 3.39929 4.85815 30.85 1485.03 1023.798 19.05 19.03 9.987 3.40087 4.86019 30.86 1485.06 1023.810 19.35 19.33 9.989 3.40274 4.86259 30.88 1485.09 1023.824 19.65 19.63 9.993 3.40535 4.86578 30.90 1485.14 1023.843 19.95 19.93 9.996 3.41080 4.87318 30.95 1485.22 1023.885 20.25 20.23 9.999 3.41449 4.87798 30.99 1485.28 1023.912 20.55 20.53 9.999 3.41550 4.87937 31.00 1485.30 1023.921 20.85 20.83 9.999 3.41645 4.88081 31.01 1485.31 1023.930 21.15 21.12 9.999 3.41704 4.88161 31.01 1485.32 1023.936 21.45 21.42 9.999 3.41778 4.88266 31.02 1485.34 1023.943 21.75 21.72 10.000 3.41783 4.88265 31.02 1485.34 1023.944 22.05 22.02 10.000 3.41901 4.88425 31.03 1485.37 1023.954 22.35 22.32 10.001 3.41968 4.88507 31.04 1485.38 1023.960 22.65 22.62 10.002 3.42065 4.88634 31.04 1485.40 1023.968 22.95 22.92 10.003 3.42113 4.88698 31.05 1485.41 1023.973 23.25 23.21 10.004 3.42150 4.88734 31.05 1485.42 1023.976 23.55 23.51 10.004 3.42218 4.88825 31.06 1485.44 1023.982 23.85 23.81 10.006 3.42216 4.88793 31.06 1485.45 1023.981 24.15 24.11 10.005 3.42247 4.88858 31.06 1485.45 1023.986 24.45 24.41 10.005 3.42272 4.88890 31.06 1485.46 1023.989 24.75 24.71 10.007 3.42310 4.88922 31.06 1485.47 1023.992 25.05 25.01 10.007 3.42335 4.88950 31.07 1485.48 1023.995 25.35 25.30 10.008 3.42318 4.88913 31.06 1485.49 1023.994 25.65 25.61 10.009 3.42405 4.89029 31.07 1485.51 1024.002