*2026/01/16 09:57:47.92 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 18:35:03.000 END TIME : UTC 2024/02/15 18:35:16.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 69 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.68 2 Depth metres 0.15 20.64 3 Temperature 'deg C (ITS90)' 8.731 9.92 4 Conductivity S/m 2.80763 3.29733 5 Conductance:Specific S/m 4.16183 4.7213 6 Salinity PSS-78 25.87 29.87 7 Speed:Sound m/s 1474.02 1483.65 8 Density kg/m^3 1020.023 1023.061 $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 : 50 LATITUDE : 48 54.54170 N ! (deg min) LONGITUDE : 125 27.86870 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_183503 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 69 69 MERGEHDR 1.3 2026/01/16 09:53:47 69 69 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 69 69 CALIB 12.1 2026/01/16 09:56:46 69 69 CLEAN 5.3 2026/01/16 09:57:47 69 69 $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 8.737 2.81382 4.17021 25.93 1474.08 1020.060 0.45 0.45 8.737 2.81295 4.16897 25.92 1474.08 1020.055 0.75 0.75 8.739 2.81271 4.16827 25.91 1474.09 1020.052 1.05 1.05 8.738 2.81214 4.16765 25.91 1474.08 1020.050 1.35 1.35 8.737 2.81036 4.16516 25.89 1474.06 1020.038 1.65 1.65 8.734 2.80839 4.16251 25.87 1474.03 1020.026 1.95 1.95 8.731 2.80763 4.16183 25.87 1474.02 1020.023 2.25 2.25 8.735 2.81333 4.16979 25.92 1474.10 1020.067 2.55 2.55 8.738 2.81677 4.17453 25.95 1474.16 1020.094 2.85 2.85 8.740 2.81880 4.17719 25.97 1474.20 1020.109 3.15 3.15 8.743 2.81862 4.17662 25.97 1474.21 1020.107 3.45 3.45 8.747 2.82066 4.17911 25.99 1474.25 1020.122 3.75 3.75 8.750 2.82092 4.17919 25.99 1474.27 1020.123 4.05 4.05 8.751 2.82362 4.18304 26.01 1474.31 1020.145 4.35 4.35 8.750 2.82498 4.18509 26.03 1474.33 1020.157 4.65 4.65 8.751 2.82592 4.18637 26.04 1474.35 1020.165 4.95 4.95 8.751 2.82671 4.18757 26.04 1474.36 1020.173 5.25 5.25 8.750 2.82795 4.18956 26.06 1474.38 1020.185 5.55 5.55 8.748 2.82818 4.19012 26.06 1474.38 1020.189 5.85 5.85 8.747 2.82795 4.18995 26.06 1474.38 1020.190 6.15 6.15 8.744 2.82946 4.19257 26.08 1474.39 1020.205 6.45 6.45 8.743 2.82961 4.19285 26.08 1474.40 1020.208 6.75 6.75 8.742 2.83021 4.19391 26.09 1474.41 1020.215 7.05 7.05 8.740 2.83046 4.19451 26.09 1474.41 1020.220 7.35 7.34 8.742 2.83020 4.19389 26.09 1474.42 1020.218 7.65 7.64 8.746 2.83010 4.19321 26.08 1474.43 1020.215 7.95 7.94 8.744 2.83022 4.19366 26.08 1474.43 1020.219 8.25 8.24 8.742 2.83071 4.19467 26.09 1474.44 1020.226 8.55 8.54 8.743 2.83115 4.19518 26.09 1474.45 1020.230 8.85 8.84 8.749 2.83163 4.19518 26.09 1474.48 1020.231 9.15 9.14 8.778 2.83533 4.19703 26.11 1474.61 1020.241 9.45 9.44 8.925 2.93773 4.32975 27.04 1476.31 1020.947 9.75 9.74 9.134 3.00786 4.40595 27.59 1477.78 1021.348 10.05 10.04 9.374 3.04680 4.43187 27.80 1478.93 1021.476 10.35 10.34 9.517 3.07595 4.45576 27.98 1479.69 1021.598 10.65 10.64 9.607 3.09827 4.47643 28.13 1480.21 1021.706 10.95 10.94 9.663 3.10125 4.47339 28.12 1480.41 1021.687 11.25 11.24 9.682 3.10732 4.47973 28.16 1480.54 1021.722 11.55 11.54 9.698 3.12504 4.50325 28.33 1480.80 1021.850 11.85 11.84 9.709 3.13767 4.52003 28.45 1480.99 1021.941 12.15 12.14 9.717 3.14754 4.53312 28.54 1481.14 1022.013 12.45 12.44 9.730 3.15252 4.53861 28.58 1481.24 1022.043 12.75 12.74 9.746 3.15620 4.54177 28.60 1481.34 1022.061 13.05 13.03 9.762 3.16620 4.55414 28.69 1481.50 1022.128 13.35 13.33 9.788 3.17918 4.56934 28.80 1481.74 1022.210 13.65 13.63 9.810 3.19391 4.58765 28.93 1481.98 1022.310 13.95 13.93 9.841 3.21134 4.60854 29.08 1482.28 1022.422 14.25 14.23 9.858 3.22011 4.61891 29.15 1482.44 1022.479 14.55 14.53 9.879 3.22342 4.62091 29.17 1482.54 1022.490 14.85 14.83 9.893 3.22900 4.62705 29.21 1482.65 1022.524 15.15 15.13 9.898 3.23511 4.63504 29.27 1482.74 1022.568 15.45 15.43 9.903 3.23735 4.63770 29.29 1482.79 1022.584 15.75 15.73 9.904 3.23929 4.64028 29.31 1482.82 1022.599 16.05 16.03 9.907 3.24071 4.64196 29.32 1482.85 1022.609 16.35 16.32 9.909 3.24012 4.64078 29.31 1482.85 1022.604 16.65 16.62 9.910 3.24064 4.64147 29.32 1482.87 1022.609 16.95 16.92 9.905 3.24089 4.64245 29.32 1482.86 1022.616 17.25 17.22 9.906 3.24288 4.64511 29.34 1482.89 1022.631 17.55 17.52 9.907 3.24557 4.64884 29.37 1482.93 1022.653 17.85 17.82 9.907 3.24788 4.65213 29.39 1482.97 1022.672 18.15 18.12 9.906 3.25241 4.65879 29.44 1483.02 1022.710 18.45 18.42 9.908 3.25761 4.66593 29.49 1483.10 1022.750 18.75 18.72 9.907 3.26143 4.67160 29.53 1483.14 1022.782 19.05 19.02 9.903 3.27057 4.68520 29.62 1483.25 1022.858 19.35 19.32 9.910 3.27199 4.68636 29.63 1483.29 1022.865 19.65 19.61 9.915 3.28060 4.69802 29.71 1483.41 1022.930 19.95 19.91 9.916 3.29544 4.71916 29.86 1483.60 1023.046 20.25 20.21 9.919 3.29666 4.72050 29.87 1483.63 1023.055 20.68 20.64 9.920 3.29733 4.72130 29.87 1483.65 1023.061