*2026/01/16 09:57:48.28 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/22 20:38:26.000 END TIME : UTC 2024/04/22 20:38:34.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 44 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 13.11 2 Depth metres 0.15 13.11 3 Temperature 'deg C (ITS90)' 10.418 11.677 4 Conductivity S/m 0.51536 3.49685 5 Conductance:Specific S/m 0.70256 4.93657 6 Salinity PSS-78 3.81 31.45 7 Speed:Sound m/s 1458.46 1487.26 8 Density kg/m^3 1002.504 1024.172 $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 : 63 LATITUDE : 49 13.88770 N ! (deg min) LONGITUDE : 124 49.47440 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240422_203826 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 44 44 MERGEHDR 1.3 2026/01/16 09:53:48 44 44 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 44 44 CALIB 12.1 2026/01/16 09:56:47 44 44 CLEAN 5.3 2026/01/16 09:57:48 44 44 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:47 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 11.677 0.51536 0.70256 3.81 1458.46 1002.504 0.45 0.46 11.550 0.68226 0.93332 5.16 1459.62 1003.568 0.75 0.76 11.359 1.23459 1.69776 9.83 1464.51 1007.204 1.05 1.06 11.446 2.07764 2.85028 17.25 1473.72 1012.939 1.35 1.37 11.459 2.18566 2.99739 18.23 1474.93 1013.693 1.65 1.67 11.449 2.36448 3.24359 19.87 1476.86 1014.968 1.95 1.97 11.456 2.43777 3.34340 20.55 1477.69 1015.488 2.25 2.27 11.421 2.49932 3.43114 21.13 1478.27 1015.951 2.55 2.57 11.403 2.53829 3.48636 21.51 1478.66 1016.243 2.85 2.87 11.308 2.59744 3.57699 22.11 1479.05 1016.730 3.15 3.17 11.246 2.66830 3.68084 22.82 1479.67 1017.285 3.45 3.47 11.187 2.70524 3.73784 23.20 1479.92 1017.593 3.75 3.77 11.150 2.75095 3.80487 23.66 1480.34 1017.953 4.05 4.07 11.118 2.80953 3.88937 24.23 1480.91 1018.406 4.35 4.37 11.039 2.85552 3.96174 24.72 1481.22 1018.801 4.65 4.67 10.985 2.94340 4.08973 25.60 1482.08 1019.491 4.95 4.97 10.934 2.99139 4.16234 26.10 1482.50 1019.886 5.25 5.27 10.919 3.02326 4.20844 26.41 1482.83 1020.137 5.55 5.57 10.903 3.07507 4.28243 26.92 1483.40 1020.538 5.85 5.87 10.893 3.12956 4.35953 27.46 1484.01 1020.956 6.15 6.17 10.857 3.20017 4.46241 28.17 1484.74 1021.518 6.45 6.47 10.832 3.31603 4.62714 29.32 1486.04 1022.417 6.75 6.77 10.822 3.33335 4.65263 29.50 1486.23 1022.559 7.05 7.07 10.808 3.35252 4.68124 29.70 1486.42 1022.718 7.35 7.37 10.772 3.38569 4.73238 30.06 1486.72 1023.002 7.65 7.67 10.759 3.40009 4.75419 30.21 1486.87 1023.123 7.95 7.97 10.717 3.42474 4.79434 30.49 1487.06 1023.348 8.25 8.27 10.665 3.43168 4.81101 30.60 1487.01 1023.445 8.55 8.56 10.630 3.44365 4.83245 30.75 1487.07 1023.567 8.85 8.86 10.598 3.46116 4.86149 30.95 1487.20 1023.730 9.15 9.16 10.552 3.46787 4.87717 31.05 1487.17 1023.821 9.45 9.46 10.526 3.47261 4.88739 31.12 1487.17 1023.881 9.75 9.76 10.515 3.47907 4.89796 31.19 1487.22 1023.941 10.05 10.06 10.499 3.47963 4.90102 31.21 1487.19 1023.960 10.35 10.36 10.481 3.47973 4.90362 31.23 1487.15 1023.977 10.65 10.66 10.480 3.48265 4.90790 31.26 1487.19 1024.002 10.95 10.95 10.465 3.48346 4.91107 31.28 1487.17 1024.022 11.25 11.25 10.453 3.48500 4.91497 31.31 1487.16 1024.046 11.55 11.55 10.436 3.49280 4.92837 31.40 1487.21 1024.122 11.85 11.85 10.430 3.49565 4.93323 31.43 1487.24 1024.151 12.15 12.15 10.426 3.49519 4.93313 31.43 1487.22 1024.152 12.45 12.45 10.418 3.49685 4.93657 31.45 1487.23 1024.172 12.75 12.75 10.420 3.49293 4.93076 31.41 1487.19 1024.141 13.11 13.11 10.436 3.49437 4.93051 31.41 1487.26 1024.140