*2026/01/16 09:57:48.00 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/15 21:15:19.000 END TIME : UTC 2024/02/15 21:15:31.200 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 18.55 2 Depth metres 0.15 18.5 3 Temperature 'deg C (ITS90)' 8.466 9.913 4 Conductivity S/m 2.72567 3.28065 5 Conductance:Specific S/m 4.07219 4.70863 6 Salinity PSS-78 25.22 29.78 7 Speed:Sound m/s 1472.2 1483.19 8 Density kg/m^3 1019.55 1022.986 $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 : 53 LATITUDE : 48 57.95290 N ! (deg min) LONGITUDE : 125 19.12720 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240215_211519 ! 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 09:53:47 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 09:57:48 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 8.469 2.72595 4.07234 25.23 1472.20 1019.550 0.45 0.45 8.466 2.72567 4.07225 25.22 1472.20 1019.551 0.75 0.75 8.475 2.72630 4.07219 25.23 1472.23 1019.551 1.05 1.05 8.489 2.72771 4.07257 25.23 1472.30 1019.554 1.35 1.35 8.512 2.72982 4.07287 25.23 1472.40 1019.556 1.65 1.65 8.528 2.73328 4.07608 25.26 1472.49 1019.573 1.95 1.95 8.585 2.74322 4.08398 25.32 1472.79 1019.614 2.25 2.25 8.650 2.75087 4.08752 25.35 1473.08 1019.632 2.55 2.55 8.701 2.75839 4.09241 25.39 1473.33 1019.657 2.85 2.85 8.767 2.76935 4.10070 25.45 1473.66 1019.699 3.15 3.15 8.857 2.78693 4.11574 25.57 1474.15 1019.776 3.45 3.45 8.907 2.79650 4.12377 25.63 1474.42 1019.818 3.75 3.75 9.006 2.80276 4.12093 25.62 1474.79 1019.799 4.05 4.05 9.101 2.82540 4.14276 25.78 1475.34 1019.912 4.35 4.35 9.173 2.83892 4.15370 25.86 1475.72 1019.967 4.65 4.65 9.265 2.86551 4.18134 26.06 1476.32 1020.111 4.95 4.95 9.366 2.90922 4.23272 26.42 1477.14 1020.382 5.25 5.25 9.561 2.99040 4.32623 27.09 1478.69 1020.875 5.55 5.55 9.741 3.06963 4.41793 27.74 1480.15 1021.359 5.85 5.85 9.821 3.09444 4.44335 27.93 1480.68 1021.493 6.15 6.15 9.872 3.11097 4.46051 28.05 1481.03 1021.584 6.45 6.45 9.893 3.12141 4.47283 28.14 1481.21 1021.650 6.75 6.74 9.900 3.13092 4.48559 28.23 1481.35 1021.720 7.05 7.04 9.908 3.13451 4.48972 28.26 1481.42 1021.743 7.35 7.34 9.913 3.13770 4.49362 28.29 1481.48 1021.765 7.65 7.64 9.906 3.14748 4.50845 28.39 1481.58 1021.847 7.95 7.94 9.899 3.15360 4.51815 28.46 1481.64 1021.902 8.25 8.24 9.889 3.15907 4.52737 28.52 1481.68 1021.954 8.55 8.54 9.880 3.16800 4.54131 28.62 1481.77 1022.031 8.85 8.84 9.878 3.17249 4.54803 28.66 1481.83 1022.069 9.15 9.14 9.878 3.17814 4.55604 28.72 1481.90 1022.114 9.45 9.44 9.878 3.19095 4.57440 28.85 1482.06 1022.215 9.75 9.74 9.865 3.19955 4.58855 28.94 1482.14 1022.294 10.05 10.04 9.860 3.20953 4.60345 29.05 1482.25 1022.377 10.35 10.34 9.867 3.21412 4.60908 29.09 1482.33 1022.408 10.65 10.63 9.873 3.22265 4.62055 29.17 1482.45 1022.472 10.95 10.93 9.873 3.22772 4.62787 29.22 1482.52 1022.513 11.25 11.23 9.875 3.23228 4.63409 29.26 1482.59 1022.548 11.55 11.53 9.878 3.23658 4.63990 29.30 1482.65 1022.581 11.85 11.83 9.887 3.23662 4.63867 29.30 1482.68 1022.575 12.15 12.13 9.890 3.23892 4.64166 29.32 1482.72 1022.592 12.45 12.43 9.888 3.23962 4.64289 29.33 1482.73 1022.600 12.75 12.73 9.886 3.24055 4.64447 29.34 1482.74 1022.610 13.05 13.03 9.882 3.24352 4.64922 29.37 1482.77 1022.637 13.35 13.33 9.884 3.24799 4.65539 29.41 1482.83 1022.672 13.65 13.63 9.880 3.25551 4.66679 29.49 1482.92 1022.736 13.95 13.92 9.875 3.26068 4.67481 29.55 1482.97 1022.781 14.25 14.22 9.868 3.26214 4.67784 29.57 1482.98 1022.800 14.55 14.52 9.859 3.26346 4.68099 29.59 1482.97 1022.819 14.85 14.82 9.856 3.26401 4.68219 29.60 1482.98 1022.827 15.15 15.12 9.855 3.26527 4.68412 29.61 1482.99 1022.839 15.45 15.42 9.859 3.26845 4.68806 29.64 1483.05 1022.861 15.75 15.72 9.871 3.27036 4.68916 29.65 1483.11 1022.867 16.05 16.02 9.876 3.27088 4.68935 29.65 1483.13 1022.870 16.35 16.32 9.881 3.27112 4.68895 29.65 1483.16 1022.868 16.65 16.62 9.881 3.27165 4.68976 29.65 1483.17 1022.874 16.95 16.91 9.876 3.27179 4.69065 29.66 1483.16 1022.880 17.25 17.21 9.868 3.27367 4.69441 29.68 1483.17 1022.903 17.55 17.51 9.852 3.27792 4.70265 29.74 1483.18 1022.950 17.85 17.81 9.840 3.28065 4.70814 29.77 1483.19 1022.982 18.15 18.11 9.836 3.28064 4.70863 29.78 1483.18 1022.986 18.55 18.50 9.837 3.28050 4.70830 29.77 1483.19 1022.986