*2026/01/16 09:57:54.93 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/14 21:13:35.000 END TIME : UTC 2024/10/14 21:13:49.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 73 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.7 2 Depth metres 0.15 21.66 3 Temperature 'deg C (ITS90)' 14.618 15.433 4 Conductivity S/m 1.52964 3.81016 5 Conductance:Specific S/m 1.8958 4.80849 6 Salinity PSS-78 11.17 30.94 7 Speed:Sound m/s 1480.21 1501.08 8 Density kg/m^3 1007.619 1023.022 $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 : 253 LATITUDE : 49 8.57160 N ! (deg min) LONGITUDE : 125 40.84470 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241014_211335 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 73 73 MERGEHDR 1.3 2026/01/16 09:54:06 73 73 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:23 73 73 CALIB 12.1 2026/01/16 09:56:56 73 73 CLEAN 5.3 2026/01/16 09:57:54 73 73 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 15.343 1.52964 1.89580 11.17 1480.21 1007.619 0.45 0.46 15.424 1.60844 1.98948 11.77 1481.19 1008.067 0.75 0.76 15.433 1.77398 2.19370 13.09 1482.75 1009.075 1.05 1.06 15.372 1.95739 2.42419 14.59 1484.28 1010.238 1.35 1.36 15.219 2.18111 2.71152 16.49 1485.96 1011.716 1.65 1.67 15.124 2.35758 2.93786 17.99 1487.39 1012.890 1.95 1.97 15.101 3.03249 3.78105 23.74 1493.96 1017.301 2.25 2.27 15.080 3.24487 4.04797 25.60 1496.05 1018.731 2.55 2.57 15.007 3.39770 4.24641 26.98 1497.42 1019.812 2.85 2.87 14.952 3.51724 4.40185 28.08 1498.52 1020.665 3.15 3.17 14.920 3.53779 4.43111 28.28 1498.66 1020.831 3.45 3.47 14.892 3.55493 4.45569 28.45 1498.77 1020.970 3.75 3.77 14.868 3.58599 4.49738 28.75 1499.04 1021.203 4.05 4.07 14.836 3.59791 4.51592 28.88 1499.09 1021.310 4.35 4.36 14.830 3.61062 4.53250 28.99 1499.22 1021.403 4.65 4.66 14.876 3.62633 4.54702 29.10 1499.49 1021.476 4.95 4.96 14.854 3.65252 4.58239 29.35 1499.72 1021.674 5.25 5.26 14.801 3.66644 4.60598 29.51 1499.74 1021.813 5.55 5.56 14.804 3.67090 4.61118 29.55 1499.80 1021.842 5.85 5.86 14.804 3.68438 4.62810 29.67 1499.94 1021.936 6.15 6.16 14.790 3.69648 4.64495 29.79 1500.04 1022.032 6.45 6.46 14.788 3.70338 4.65392 29.85 1500.11 1022.083 6.75 6.76 14.778 3.70922 4.66238 29.91 1500.16 1022.132 7.05 7.06 14.769 3.72068 4.67790 30.02 1500.26 1022.220 7.35 7.36 14.762 3.73480 4.69645 30.16 1500.40 1022.324 7.65 7.66 14.750 3.74260 4.70772 30.24 1500.45 1022.389 7.95 7.96 14.742 3.74556 4.71239 30.27 1500.47 1022.417 8.25 8.25 14.735 3.74672 4.71468 30.28 1500.47 1022.432 8.55 8.55 14.729 3.75020 4.71974 30.32 1500.50 1022.462 8.85 8.85 14.721 3.75379 4.72519 30.36 1500.52 1022.495 9.15 9.15 14.719 3.75638 4.72876 30.38 1500.55 1022.516 9.45 9.45 14.715 3.75612 4.72881 30.38 1500.54 1022.518 9.75 9.75 14.712 3.75888 4.73271 30.41 1500.57 1022.541 10.05 10.05 14.705 3.75976 4.73464 30.42 1500.57 1022.554 10.35 10.35 14.702 3.76424 4.74064 30.47 1500.61 1022.589 10.65 10.65 14.700 3.76542 4.74230 30.48 1500.63 1022.600 10.95 10.95 14.702 3.77019 4.74806 30.52 1500.69 1022.632 11.25 11.25 14.701 3.77529 4.75465 30.57 1500.74 1022.670 11.55 11.54 14.702 3.77700 4.75674 30.58 1500.76 1022.683 11.85 11.84 14.694 3.77888 4.76000 30.60 1500.77 1022.703 12.15 12.14 14.686 3.77859 4.76058 30.61 1500.76 1022.709 12.45 12.44 14.684 3.77872 4.76106 30.61 1500.76 1022.713 12.75 12.74 14.683 3.77916 4.76170 30.61 1500.76 1022.718 13.05 13.04 14.676 3.78174 4.76583 30.64 1500.78 1022.743 13.35 13.34 14.668 3.78219 4.76735 30.65 1500.77 1022.754 13.65 13.64 14.668 3.78256 4.76774 30.66 1500.78 1022.757 13.95 13.94 14.669 3.78420 4.76977 30.67 1500.80 1022.770 14.25 14.24 14.665 3.78367 4.76952 30.67 1500.79 1022.770 14.55 14.53 14.667 3.78461 4.77047 30.68 1500.81 1022.776 14.85 14.83 14.662 3.78673 4.77370 30.70 1500.83 1022.796 15.15 15.13 14.656 3.78812 4.77625 30.72 1500.83 1022.812 15.45 15.43 14.655 3.78951 4.77808 30.73 1500.85 1022.824 15.75 15.73 14.650 3.79019 4.77952 30.74 1500.85 1022.833 16.05 16.03 14.649 3.78964 4.77897 30.73 1500.85 1022.832 16.35 16.33 14.648 3.79101 4.78085 30.75 1500.86 1022.844 16.65 16.63 14.644 3.79058 4.78074 30.75 1500.86 1022.845 16.95 16.93 14.646 3.79113 4.78125 30.75 1500.87 1022.849 17.25 17.23 14.641 3.79079 4.78139 30.75 1500.86 1022.852 17.55 17.52 14.641 3.79130 4.78206 30.76 1500.87 1022.857 17.85 17.82 14.640 3.79235 4.78350 30.77 1500.88 1022.866 18.15 18.12 14.634 3.79542 4.78811 30.80 1500.91 1022.893 18.45 18.42 14.636 3.79788 4.79097 30.82 1500.94 1022.910 18.75 18.72 14.632 3.80043 4.79466 30.84 1500.97 1022.932 19.05 19.02 14.621 3.80055 4.79613 30.85 1500.95 1022.943 19.35 19.32 14.622 3.80283 4.79891 30.87 1500.98 1022.960 19.65 19.62 14.622 3.80452 4.80100 30.89 1501.00 1022.973 19.95 19.92 14.623 3.80681 4.80382 30.91 1501.03 1022.989 20.25 20.22 14.622 3.80847 4.80601 30.92 1501.05 1023.003 20.55 20.51 14.621 3.80816 4.80568 30.92 1501.05 1023.002 20.85 20.81 14.620 3.80879 4.80669 30.93 1501.06 1023.009 21.15 21.11 14.620 3.80833 4.80606 30.92 1501.06 1023.007 21.45 21.41 14.619 3.81016 4.80849 30.94 1501.08 1023.022 21.70 21.66 14.618 3.80938 4.80760 30.93 1501.08 1023.018