*2026/01/16 09:57:53.07 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 20:53:53.000 END TIME : UTC 2024/07/10 20:54:11.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 93 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.86 2 Depth metres 0.15 27.74 3 Temperature 'deg C (ITS90)' 9.467 18.999 4 Conductivity S/m 3.51859 3.72847 5 Conductance:Specific S/m 4.02149 5.10464 6 Salinity PSS-78 25.57 32.51 7 Speed:Sound m/s 1485.32 1508.08 8 Density kg/m^3 1017.836 1025.222 $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 : 179 LATITUDE : 49 38.88670 N ! (deg min) LONGITUDE : 126 26.37100 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_205353 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 93 93 MERGEHDR 1.3 2026/01/16 09:53:57 93 93 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:19 93 93 CALIB 12.1 2026/01/16 09:56:52 93 93 CLEAN 5.3 2026/01/16 09:57:53 93 93 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 18.944 3.55338 4.04306 25.72 1508.08 1017.961 0.45 0.45 18.999 3.53938 4.02209 25.58 1508.08 1017.838 0.75 0.75 18.998 3.53872 4.02149 25.57 1508.08 1017.836 1.05 1.05 18.942 3.55231 4.04207 25.71 1508.08 1017.960 1.35 1.35 18.932 3.55146 4.04197 25.71 1508.06 1017.963 1.65 1.65 18.890 3.55109 4.04545 25.74 1507.96 1017.992 1.95 1.95 18.833 3.54769 4.04683 25.74 1507.81 1018.013 2.25 2.25 18.707 3.54200 4.05202 25.78 1507.48 1018.069 2.55 2.55 17.412 3.58440 4.22571 26.96 1504.94 1019.271 2.85 2.85 17.125 3.63753 4.31755 27.59 1504.79 1019.825 3.15 3.15 15.245 3.65962 4.54672 29.12 1500.68 1021.409 3.45 3.45 14.435 3.66392 4.64553 29.77 1498.82 1022.078 3.75 3.75 13.974 3.68103 4.72238 30.28 1497.92 1022.569 4.05 4.05 13.655 3.69872 4.78429 30.70 1497.36 1022.955 4.35 4.35 13.481 3.71667 4.82924 31.01 1497.15 1023.227 4.65 4.65 13.232 3.72847 4.87610 31.32 1496.69 1023.520 4.95 4.95 12.984 3.71942 4.89606 31.44 1496.01 1023.663 5.25 5.25 12.871 3.70894 4.89687 31.44 1495.62 1023.682 5.55 5.54 12.708 3.71959 4.93210 31.67 1495.36 1023.898 5.85 5.84 12.557 3.71880 4.95093 31.79 1494.99 1024.021 6.15 6.14 12.448 3.71511 4.96032 31.85 1494.70 1024.087 6.45 6.44 12.335 3.71187 4.97108 31.91 1494.39 1024.160 6.75 6.74 12.186 3.69636 4.97013 31.89 1493.86 1024.172 7.05 7.04 12.004 3.68726 4.98230 31.96 1493.32 1024.260 7.35 7.34 11.860 3.67206 4.98112 31.94 1492.80 1024.270 7.65 7.63 11.741 3.66684 4.99011 31.99 1492.46 1024.333 7.95 7.93 11.580 3.65366 4.99409 32.00 1491.92 1024.372 8.25 8.23 11.431 3.64526 5.00291 32.04 1491.46 1024.436 8.55 8.53 11.370 3.63817 5.00166 32.03 1491.23 1024.436 8.85 8.83 11.304 3.63317 5.00385 32.04 1491.01 1024.456 9.15 9.13 11.253 3.63055 5.00722 32.06 1490.86 1024.480 9.45 9.43 11.215 3.62464 5.00433 32.03 1490.70 1024.469 9.75 9.72 11.173 3.62287 5.00775 32.05 1490.58 1024.493 10.05 10.02 11.128 3.61979 5.00964 32.06 1490.44 1024.509 10.35 10.32 11.099 3.61841 5.01186 32.07 1490.36 1024.525 10.65 10.62 11.078 3.61611 5.01145 32.06 1490.29 1024.525 10.95 10.92 11.051 3.61513 5.01389 32.08 1490.21 1024.542 11.25 11.22 11.040 3.61242 5.01171 32.06 1490.16 1024.533 11.55 11.51 11.029 3.61561 5.01760 32.10 1490.17 1024.567 11.85 11.81 11.043 3.61995 5.02166 32.13 1490.26 1024.590 12.15 12.11 11.032 3.62314 5.02764 32.17 1490.28 1024.625 12.45 12.41 11.025 3.62218 5.02732 32.17 1490.25 1024.625 12.75 12.71 11.012 3.62082 5.02727 32.17 1490.21 1024.627 13.05 13.01 10.981 3.61714 5.02641 32.16 1490.10 1024.626 13.35 13.31 10.922 3.61283 5.02877 32.17 1489.90 1024.646 13.65 13.60 10.863 3.60732 5.02935 32.17 1489.69 1024.655 13.95 13.90 10.804 3.60152 5.02943 32.16 1489.48 1024.662 14.25 14.20 10.747 3.59785 5.03245 32.17 1489.30 1024.684 14.55 14.50 10.703 3.59692 5.03721 32.20 1489.19 1024.715 14.85 14.80 10.654 3.59379 5.03984 32.21 1489.03 1024.735 15.15 15.10 10.587 3.59037 5.04455 32.24 1488.83 1024.767 15.45 15.39 10.520 3.58564 5.04730 32.25 1488.61 1024.789 15.75 15.69 10.474 3.58115 5.04760 32.25 1488.44 1024.795 16.05 15.99 10.449 3.57785 5.04649 32.24 1488.35 1024.792 16.35 16.29 10.410 3.57555 5.04881 32.25 1488.22 1024.809 16.65 16.59 10.370 3.57322 5.05116 32.26 1488.10 1024.826 16.95 16.89 10.343 3.57160 5.05280 32.27 1488.02 1024.838 17.25 17.18 10.309 3.57099 5.05671 32.29 1487.93 1024.864 17.55 17.48 10.282 3.56727 5.05531 32.28 1487.82 1024.859 17.85 17.78 10.229 3.56274 5.05655 32.28 1487.64 1024.871 18.15 18.08 10.182 3.55950 5.05874 32.29 1487.48 1024.887 18.45 18.38 10.142 3.55525 5.05836 32.28 1487.34 1024.889 18.75 18.68 10.089 3.55234 5.06186 32.30 1487.17 1024.913 19.05 18.98 10.050 3.55198 5.06697 32.33 1487.08 1024.945 19.35 19.27 10.015 3.54940 5.06837 32.33 1486.96 1024.957 19.65 19.57 9.998 3.54902 5.07039 32.35 1486.92 1024.970 19.95 19.87 9.963 3.54670 5.07203 32.35 1486.81 1024.983 20.25 20.17 9.966 3.54668 5.07158 32.35 1486.82 1024.981 20.55 20.47 9.925 3.54516 5.07542 32.37 1486.70 1025.006 20.85 20.77 9.913 3.54402 5.07554 32.37 1486.66 1025.009 21.15 21.06 9.901 3.54421 5.07747 32.38 1486.64 1025.021 21.45 21.36 9.858 3.54320 5.08233 32.41 1486.52 1025.052 21.75 21.66 9.844 3.53925 5.07875 32.38 1486.44 1025.035 22.05 21.96 9.826 3.53906 5.08106 32.40 1486.40 1025.050 22.35 22.26 9.823 3.53825 5.08032 32.39 1486.38 1025.047 22.65 22.56 9.771 3.53550 5.08399 32.41 1486.22 1025.072 22.95 22.85 9.756 3.53463 5.08486 32.41 1486.18 1025.078 23.25 23.15 9.746 3.53487 5.08677 32.43 1486.16 1025.091 23.55 23.45 9.732 3.53391 5.08732 32.43 1486.12 1025.096 23.85 23.75 9.724 3.53358 5.08812 32.43 1486.10 1025.102 24.15 24.05 9.693 3.53170 5.08990 32.44 1486.00 1025.115 24.45 24.35 9.663 3.52892 5.09032 32.44 1485.89 1025.120 24.75 24.64 9.647 3.52795 5.09123 32.44 1485.85 1025.127 25.05 24.94 9.598 3.52530 5.09462 32.46 1485.69 1025.150 25.35 25.24 9.588 3.52508 5.09580 32.47 1485.67 1025.158 25.65 25.54 9.580 3.52424 5.09584 32.47 1485.64 1025.160 25.95 25.84 9.562 3.52248 5.09582 32.46 1485.58 1025.162 26.25 26.13 9.535 3.52176 5.09884 32.48 1485.51 1025.182 26.55 26.43 9.517 3.51945 5.09809 32.47 1485.44 1025.180 26.85 26.73 9.492 3.51935 5.10171 32.50 1485.38 1025.203 27.15 27.03 9.477 3.51859 5.10275 32.50 1485.33 1025.210 27.45 27.33 9.467 3.51888 5.10464 32.51 1485.32 1025.222 27.86 27.74 9.472 3.51885 5.10399 32.51 1485.33 1025.220