*2026/01/16 09:57:47.86 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 16:24:32.000 END TIME : UTC 2024/02/15 16:24:44.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 62 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.58 2 Depth metres 0.15 18.51 3 Temperature 'deg C (ITS90)' 9.123 9.784 4 Conductivity S/m 3.06442 3.26652 5 Conductance:Specific S/m 4.49023 4.7224 6 Salinity PSS-78 28.18 29.84 7 Speed:Sound m/s 1478.3 1482.48 8 Density kg/m^3 1021.764 1023.079 $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 : 47 LATITUDE : 48 51.14200 N ! (deg min) LONGITUDE : 125 11.77950 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_162432 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 62 62 MERGEHDR 1.3 2026/01/16 09:53:46 62 62 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:14 62 62 CALIB 12.1 2026/01/16 09:56:46 62 62 CLEAN 5.3 2026/01/16 09:57:47 62 62 $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 9.153 3.06870 4.49257 28.20 1478.43 1021.774 0.45 0.45 9.123 3.06442 4.49023 28.18 1478.30 1021.764 0.75 0.75 9.132 3.06864 4.49531 28.21 1478.38 1021.793 1.05 1.05 9.184 3.07586 4.49897 28.24 1478.62 1021.811 1.35 1.35 9.193 3.08705 4.51412 28.35 1478.79 1021.894 1.65 1.65 9.230 3.09941 4.52734 28.45 1479.05 1021.965 1.95 1.95 9.261 3.12041 4.55383 28.63 1479.40 1022.108 2.25 2.24 9.352 3.13473 4.56271 28.71 1479.83 1022.153 2.55 2.54 9.426 3.15497 4.58221 28.85 1480.29 1022.256 2.85 2.84 9.485 3.17476 4.60313 29.00 1480.70 1022.368 3.15 3.14 9.542 3.18952 4.61694 29.11 1481.04 1022.441 3.45 3.44 9.621 3.21768 4.64698 29.33 1481.60 1022.601 3.75 3.74 9.681 3.23318 4.66137 29.43 1481.96 1022.677 4.05 4.04 9.746 3.24015 4.66263 29.45 1482.22 1022.681 4.35 4.34 9.782 3.24868 4.67011 29.51 1482.43 1022.721 4.65 4.64 9.784 3.24999 4.67162 29.52 1482.45 1022.730 4.95 4.94 9.766 3.25478 4.68094 29.58 1482.47 1022.783 5.25 5.24 9.740 3.25122 4.67937 29.57 1482.36 1022.778 5.55 5.53 9.727 3.25411 4.68530 29.61 1482.36 1022.812 5.85 5.83 9.715 3.25594 4.68953 29.63 1482.36 1022.837 6.15 6.13 9.725 3.25927 4.69291 29.66 1482.43 1022.856 6.45 6.43 9.734 3.26070 4.69381 29.67 1482.48 1022.862 6.75 6.73 9.734 3.25967 4.69234 29.66 1482.47 1022.855 7.05 7.03 9.707 3.26029 4.69681 29.68 1482.41 1022.883 7.35 7.33 9.691 3.26147 4.70077 29.71 1482.39 1022.906 7.65 7.63 9.680 3.26233 4.70344 29.73 1482.37 1022.923 7.95 7.93 9.664 3.26206 4.70530 29.74 1482.33 1022.935 8.25 8.23 9.638 3.25914 4.70454 29.73 1482.23 1022.934 8.55 8.52 9.615 3.25773 4.70564 29.73 1482.16 1022.943 8.85 8.82 9.586 3.25673 4.70818 29.75 1482.07 1022.960 9.15 9.12 9.563 3.25615 4.71046 29.76 1482.01 1022.975 9.45 9.42 9.524 3.25184 4.70953 29.75 1481.86 1022.973 9.75 9.72 9.485 3.24945 4.71138 29.76 1481.73 1022.987 10.05 10.02 9.453 3.24775 4.71337 29.77 1481.62 1023.001 10.35 10.32 9.474 3.25229 4.71699 29.79 1481.74 1023.020 10.65 10.62 9.481 3.25232 4.71613 29.79 1481.77 1023.017 10.95 10.92 9.488 3.25364 4.71712 29.80 1481.80 1023.023 11.25 11.21 9.518 3.25580 4.71606 29.79 1481.92 1023.017 11.55 11.51 9.527 3.25837 4.71862 29.81 1481.98 1023.031 11.85 11.81 9.522 3.25685 4.71708 29.80 1481.95 1023.025 12.15 12.11 9.510 3.25494 4.71591 29.79 1481.90 1023.020 12.45 12.41 9.497 3.25390 4.71626 29.79 1481.86 1023.024 12.75 12.71 9.488 3.25465 4.71849 29.81 1481.85 1023.038 13.05 13.01 9.482 3.25232 4.71601 29.79 1481.81 1023.026 13.35 13.31 9.478 3.25378 4.71867 29.80 1481.82 1023.042 13.65 13.61 9.485 3.25568 4.72037 29.82 1481.87 1023.052 13.95 13.91 9.493 3.25491 4.71825 29.80 1481.88 1023.042 14.25 14.20 9.492 3.25469 4.71803 29.80 1481.88 1023.042 14.55 14.50 9.491 3.25515 4.71884 29.81 1481.89 1023.047 14.85 14.80 9.496 3.25514 4.71819 29.80 1481.91 1023.045 15.15 15.10 9.496 3.25534 4.71846 29.81 1481.92 1023.048 15.45 15.40 9.498 3.25601 4.71917 29.81 1481.93 1023.053 15.75 15.70 9.505 3.25663 4.71910 29.81 1481.96 1023.053 16.05 16.00 9.526 3.25925 4.72003 29.82 1482.06 1023.058 16.35 16.30 9.539 3.26102 4.72072 29.83 1482.12 1023.063 16.65 16.60 9.550 3.26151 4.71999 29.82 1482.16 1023.059 16.95 16.89 9.554 3.26238 4.72066 29.83 1482.19 1023.064 17.25 17.19 9.561 3.26331 4.72107 29.83 1482.22 1023.067 17.55 17.49 9.564 3.26286 4.72009 29.82 1482.23 1023.063 17.85 17.79 9.566 3.26452 4.72209 29.84 1482.26 1023.075 18.15 18.09 9.577 3.26491 4.72118 29.83 1482.30 1023.071 18.58 18.51 9.585 3.26652 4.72240 29.84 1482.35 1023.079