*2026/01/16 09:57:54.88 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/14 20:50:18.000 END TIME : UTC 2024/10/14 20:50:33.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 78 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.26 2 Depth metres 0.15 23.18 3 Temperature 'deg C (ITS90)' 13.959 14.374 4 Conductivity S/m 3.54411 3.79941 5 Conductance:Specific S/m 4.50054 4.87586 6 Salinity PSS-78 28.74 31.37 7 Speed:Sound m/s 1497.36 1499.45 8 Density kg/m^3 1021.28 1023.492 $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 : 252 LATITUDE : 49 7.10570 N ! (deg min) LONGITUDE : 125 48.03250 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241014_205018 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 78 78 MERGEHDR 1.3 2026/01/16 09:54:06 78 78 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:23 78 78 CALIB 12.1 2026/01/16 09:56:56 78 78 CLEAN 5.3 2026/01/16 09:57:54 78 78 $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 14.374 3.54411 4.50054 28.74 1497.37 1021.280 0.45 0.45 14.349 3.54913 4.50980 28.80 1497.36 1021.336 0.75 0.75 14.339 3.55423 4.51746 28.86 1497.40 1021.381 1.05 1.05 14.331 3.56589 4.53313 28.97 1497.51 1021.469 1.35 1.35 14.331 3.57294 4.54215 29.03 1497.58 1021.519 1.65 1.65 14.335 3.58438 4.55627 29.13 1497.72 1021.597 1.95 1.95 14.337 3.60328 4.58001 29.30 1497.93 1021.728 2.25 2.25 14.346 3.61675 4.59606 29.41 1498.10 1021.815 2.55 2.54 14.341 3.62225 4.60371 29.47 1498.15 1021.859 2.85 2.84 14.336 3.62836 4.61197 29.53 1498.20 1021.906 3.15 3.14 14.326 3.63486 4.62147 29.59 1498.25 1021.961 3.45 3.44 14.306 3.64455 4.63614 29.70 1498.31 1022.046 3.75 3.74 14.285 3.65066 4.64643 29.77 1498.33 1022.107 4.05 4.04 14.228 3.66008 4.66515 29.90 1498.30 1022.219 4.35 4.34 14.178 3.66838 4.68168 30.01 1498.28 1022.318 4.65 4.64 14.104 3.67876 4.70378 30.16 1498.22 1022.452 4.95 4.94 14.066 3.68089 4.71117 30.21 1498.15 1022.499 5.25 5.24 14.055 3.68147 4.71319 30.22 1498.14 1022.513 5.55 5.54 14.048 3.68201 4.71478 30.24 1498.13 1022.524 5.85 5.84 14.046 3.68287 4.71612 30.24 1498.14 1022.533 6.15 6.13 14.034 3.68558 4.72104 30.28 1498.15 1022.563 6.45 6.43 14.030 3.68742 4.72389 30.30 1498.16 1022.580 6.75 6.73 14.021 3.69138 4.72995 30.34 1498.19 1022.616 7.05 7.03 14.013 3.69888 4.74058 30.42 1498.26 1022.677 7.35 7.33 14.012 3.70230 4.74513 30.45 1498.29 1022.704 7.65 7.63 14.010 3.70551 4.74950 30.48 1498.33 1022.729 7.95 7.93 14.008 3.70710 4.75166 30.49 1498.35 1022.742 8.25 8.23 14.007 3.71396 4.76060 30.56 1498.42 1022.793 8.55 8.53 14.007 3.72377 4.77324 30.65 1498.53 1022.864 8.85 8.83 14.008 3.72862 4.77936 30.69 1498.59 1022.899 9.15 9.12 14.009 3.73044 4.78148 30.71 1498.62 1022.912 9.45 9.42 14.009 3.73332 4.78514 30.73 1498.65 1022.933 9.75 9.72 14.008 3.73647 4.78932 30.76 1498.69 1022.957 10.05 10.02 14.010 3.73735 4.79021 30.77 1498.71 1022.963 10.35 10.32 14.009 3.73876 4.79217 30.78 1498.73 1022.976 10.65 10.62 14.009 3.73689 4.78981 30.77 1498.71 1022.964 10.95 10.92 14.010 3.73780 4.79084 30.77 1498.73 1022.971 11.25 11.22 14.011 3.73812 4.79116 30.78 1498.74 1022.974 11.55 11.52 14.009 3.73988 4.79356 30.79 1498.76 1022.988 11.85 11.82 14.011 3.74011 4.79361 30.79 1498.77 1022.989 12.15 12.11 14.009 3.74370 4.79850 30.83 1498.81 1023.018 12.45 12.41 14.009 3.74383 4.79867 30.83 1498.81 1023.020 12.75 12.71 14.010 3.74543 4.80064 30.84 1498.84 1023.032 13.05 13.01 14.006 3.74806 4.80449 30.87 1498.86 1023.055 13.35 13.31 14.007 3.74885 4.80534 30.88 1498.88 1023.061 13.65 13.61 14.007 3.75283 4.81041 30.91 1498.93 1023.090 13.95 13.91 14.008 3.75416 4.81203 30.92 1498.95 1023.100 14.25 14.21 14.010 3.75578 4.81391 30.94 1498.97 1023.112 14.55 14.51 14.006 3.75698 4.81586 30.95 1498.98 1023.124 14.85 14.80 14.007 3.76123 4.82126 30.99 1499.03 1023.155 15.15 15.10 14.005 3.76234 4.82288 31.00 1499.05 1023.165 15.45 15.40 14.004 3.76195 4.82253 31.00 1499.05 1023.165 15.75 15.70 14.006 3.76172 4.82201 30.99 1499.05 1023.163 16.05 16.00 14.004 3.76288 4.82377 31.01 1499.06 1023.174 16.35 16.30 14.003 3.76167 4.82235 31.00 1499.05 1023.168 16.65 16.60 14.007 3.76313 4.82361 31.00 1499.09 1023.175 16.95 16.90 14.006 3.76326 4.82395 31.01 1499.09 1023.179 17.25 17.20 14.005 3.76273 4.82341 31.00 1499.09 1023.177 17.55 17.49 14.005 3.76414 4.82519 31.02 1499.11 1023.188 17.85 17.79 14.002 3.76532 4.82714 31.03 1499.11 1023.201 18.15 18.09 14.000 3.76759 4.83024 31.05 1499.14 1023.219 18.45 18.39 14.002 3.76832 4.83094 31.06 1499.16 1023.224 18.75 18.69 13.996 3.77005 4.83385 31.08 1499.17 1023.242 19.05 18.99 13.992 3.77531 4.84114 31.13 1499.22 1023.284 19.35 19.29 13.989 3.77799 4.84492 31.15 1499.25 1023.307 19.65 19.59 13.980 3.78047 4.84926 31.18 1499.26 1023.333 19.95 19.89 13.977 3.78519 4.85572 31.23 1499.30 1023.371 20.25 20.18 13.973 3.79036 4.86284 31.28 1499.36 1023.412 20.55 20.48 13.966 3.79133 4.86495 31.30 1499.35 1023.426 20.85 20.78 13.963 3.79402 4.86876 31.32 1499.38 1023.449 21.15 21.08 13.963 3.79703 4.87267 31.35 1499.42 1023.471 21.45 21.38 13.961 3.79941 4.87586 31.37 1499.45 1023.491 21.75 21.68 13.961 3.79938 4.87582 31.37 1499.45 1023.492 22.05 21.98 13.962 3.79795 4.87396 31.36 1499.44 1023.482 22.35 22.28 13.962 3.79680 4.87240 31.35 1499.43 1023.475 22.65 22.57 13.961 3.79641 4.87211 31.35 1499.43 1023.475 22.95 22.87 13.960 3.79693 4.87286 31.35 1499.44 1023.480 23.26 23.18 13.959 3.79641 4.87228 31.35 1499.44 1023.479