*2026/01/16 09:57:49.42 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/24 16:07:48.000 END TIME : UTC 2024/04/24 16:08:11.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.19 2 Depth metres 0.15 35.04 3 Temperature 'deg C (ITS90)' 9.901 11.849 4 Conductivity S/m 3.356 3.50417 5 Conductance:Specific S/m 4.55461 5.01846 6 Salinity PSS-78 28.92 31.96 7 Speed:Sound m/s 1486.21 1489.33 8 Density kg/m^3 1021.9 1024.755 $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 : 86 LATITUDE : 48 52.90120 N ! (deg min) LONGITUDE : 125 4.71270 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240424_160748 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 118 118 MERGEHDR 1.3 2026/01/16 09:53:49 118 118 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 118 118 CALIB 12.1 2026/01/16 09:56:48 118 118 CLEAN 5.3 2026/01/16 09:57:49 118 118 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.849 3.35770 4.55607 28.93 1489.05 1021.906 0.45 0.45 11.842 3.35600 4.55461 28.92 1489.02 1021.900 0.75 0.75 11.846 3.35705 4.55553 28.92 1489.05 1021.906 1.05 1.05 11.846 3.35750 4.55608 28.93 1489.06 1021.910 1.35 1.35 11.841 3.35798 4.55736 28.94 1489.06 1021.919 1.65 1.65 11.837 3.35919 4.55952 28.95 1489.07 1021.933 1.95 1.95 11.820 3.36178 4.56511 28.99 1489.06 1021.966 2.25 2.24 11.802 3.36412 4.57054 29.02 1489.04 1021.999 2.55 2.54 11.791 3.36800 4.57726 29.07 1489.06 1022.038 2.85 2.84 11.779 3.37073 4.58244 29.11 1489.07 1022.069 3.15 3.14 11.760 3.37395 4.58915 29.15 1489.06 1022.109 3.45 3.44 11.732 3.37578 4.59512 29.19 1489.02 1022.145 3.75 3.74 11.703 3.38599 4.61274 29.31 1489.06 1022.246 4.05 4.04 11.695 3.39159 4.62135 29.37 1489.11 1022.295 4.35 4.34 11.673 3.39741 4.63207 29.44 1489.13 1022.357 4.65 4.64 11.660 3.39941 4.63642 29.47 1489.12 1022.383 4.95 4.94 11.650 3.40180 4.64090 29.50 1489.13 1022.410 5.25 5.24 11.635 3.40473 4.64684 29.54 1489.13 1022.445 5.55 5.54 11.631 3.40778 4.65151 29.58 1489.16 1022.473 5.85 5.83 11.618 3.40627 4.65111 29.57 1489.11 1022.473 6.15 6.13 11.620 3.42471 4.67607 29.75 1489.33 1022.611 6.45 6.43 11.553 3.42977 4.69148 29.85 1489.23 1022.703 6.75 6.73 11.516 3.42502 4.68972 29.83 1489.08 1022.698 7.05 7.03 11.489 3.42695 4.69582 29.87 1489.04 1022.735 7.35 7.33 11.455 3.44485 4.72479 30.08 1489.17 1022.899 7.65 7.63 11.425 3.45263 4.73931 30.17 1489.19 1022.982 7.95 7.93 11.370 3.45438 4.74888 30.24 1489.07 1023.041 8.25 8.23 11.291 3.45529 4.76054 30.31 1488.89 1023.114 8.55 8.53 11.126 3.45484 4.78162 30.44 1488.47 1023.246 8.85 8.82 10.897 3.45599 4.81383 30.64 1487.90 1023.444 9.15 9.12 10.739 3.45629 4.83541 30.78 1487.51 1023.577 9.45 9.42 10.663 3.45568 4.84486 30.84 1487.31 1023.636 9.75 9.72 10.596 3.45514 4.85334 30.89 1487.14 1023.689 10.05 10.02 10.524 3.45461 4.86232 30.94 1486.95 1023.746 10.35 10.32 10.490 3.45413 4.86631 30.97 1486.87 1023.771 10.65 10.62 10.453 3.45394 4.87121 31.00 1486.77 1023.802 10.95 10.92 10.420 3.45545 4.87789 31.04 1486.71 1023.843 11.25 11.21 10.362 3.45416 4.88397 31.08 1486.55 1023.882 11.55 11.51 10.332 3.45309 4.88662 31.09 1486.47 1023.900 11.85 11.81 10.298 3.45453 4.89332 31.13 1486.40 1023.940 12.15 12.11 10.270 3.45708 4.90081 31.18 1486.37 1023.985 12.45 12.41 10.249 3.45843 4.90568 31.22 1486.33 1024.014 12.75 12.71 10.235 3.45968 4.90943 31.24 1486.32 1024.037 13.05 13.01 10.225 3.46060 4.91214 31.26 1486.31 1024.054 13.35 13.30 10.209 3.46211 4.91646 31.29 1486.29 1024.080 13.65 13.60 10.196 3.46506 4.92257 31.33 1486.30 1024.116 13.95 13.90 10.174 3.47069 4.93365 31.40 1486.31 1024.180 14.25 14.20 10.141 3.47491 4.94424 31.47 1486.29 1024.242 14.55 14.50 10.116 3.47785 4.95199 31.53 1486.26 1024.287 14.85 14.80 10.096 3.47919 4.95661 31.56 1486.23 1024.315 15.15 15.10 10.085 3.47991 4.95923 31.57 1486.22 1024.332 15.45 15.39 10.075 3.48147 4.96296 31.60 1486.22 1024.354 15.75 15.69 10.065 3.48235 4.96560 31.61 1486.21 1024.371 16.05 15.99 10.061 3.48281 4.96682 31.62 1486.21 1024.379 16.35 16.29 10.060 3.48314 4.96741 31.63 1486.21 1024.384 16.65 16.59 10.058 3.48347 4.96817 31.63 1486.22 1024.389 16.95 16.89 10.056 3.48422 4.96953 31.64 1486.23 1024.398 17.25 17.19 10.052 3.48401 4.96978 31.64 1486.22 1024.401 17.55 17.48 10.050 3.48433 4.97051 31.65 1486.22 1024.406 17.85 17.78 10.044 3.48476 4.97193 31.66 1486.22 1024.416 18.15 18.08 10.033 3.48776 4.97780 31.70 1486.23 1024.450 18.45 18.38 10.029 3.49135 4.98345 31.73 1486.27 1024.483 18.75 18.68 10.022 3.49151 4.98480 31.74 1486.26 1024.492 19.05 18.98 10.015 3.49212 4.98656 31.75 1486.25 1024.504 19.35 19.28 10.015 3.49287 4.98771 31.76 1486.26 1024.511 19.65 19.57 10.013 3.49285 4.98793 31.76 1486.26 1024.514 19.95 19.87 10.011 3.49320 4.98872 31.77 1486.27 1024.519 20.25 20.17 10.007 3.49429 4.99084 31.78 1486.28 1024.533 20.55 20.47 10.003 3.49468 4.99200 31.79 1486.28 1024.541 20.85 20.77 10.002 3.49517 4.99277 31.80 1486.28 1024.546 21.15 21.07 10.001 3.49517 4.99295 31.80 1486.29 1024.548 21.45 21.37 10.000 3.49631 4.99480 31.81 1486.30 1024.560 21.75 21.66 9.999 3.49656 4.99526 31.81 1486.31 1024.564 22.05 21.96 9.996 3.49682 4.99599 31.82 1486.31 1024.569 22.35 22.26 9.994 3.49757 4.99733 31.83 1486.32 1024.578 22.65 22.56 9.991 3.49765 4.99793 31.83 1486.31 1024.583 22.95 22.86 9.989 3.49868 4.99967 31.84 1486.33 1024.594 23.25 23.16 9.986 3.49898 5.00060 31.85 1486.33 1024.601 23.55 23.45 9.983 3.49950 5.00167 31.86 1486.33 1024.608 23.85 23.75 9.982 3.49919 5.00146 31.85 1486.33 1024.608 24.15 24.05 9.978 3.50046 5.00381 31.87 1486.34 1024.623 24.45 24.35 9.975 3.50094 5.00493 31.88 1486.34 1024.630 24.75 24.65 9.973 3.50089 5.00515 31.88 1486.34 1024.633 25.05 24.95 9.971 3.50123 5.00589 31.88 1486.35 1024.638 25.35 25.25 9.970 3.50167 5.00670 31.89 1486.35 1024.644 25.65 25.54 9.969 3.50165 5.00681 31.89 1486.35 1024.646 25.95 25.84 9.968 3.50270 5.00849 31.90 1486.37 1024.656 26.25 26.14 9.968 3.50240 5.00800 31.90 1486.37 1024.655 26.55 26.44 9.968 3.50250 5.00813 31.90 1486.38 1024.657 26.85 26.74 9.967 3.50285 5.00879 31.90 1486.38 1024.662 27.15 27.04 9.967 3.50262 5.00840 31.90 1486.39 1024.661 27.45 27.33 9.967 3.50268 5.00856 31.90 1486.39 1024.663 27.75 27.63 9.967 3.50292 5.00893 31.90 1486.40 1024.667 28.05 27.93 9.967 3.50325 5.00941 31.91 1486.41 1024.671 28.35 28.23 9.966 3.50296 5.00913 31.90 1486.41 1024.670 28.65 28.53 9.966 3.50326 5.00956 31.91 1486.41 1024.674 28.95 28.83 9.966 3.50366 5.01006 31.91 1486.43 1024.678 29.25 29.13 9.966 3.50360 5.01006 31.91 1486.43 1024.679 29.55 29.42 9.964 3.50334 5.00991 31.91 1486.43 1024.680 29.85 29.72 9.960 3.50398 5.01138 31.92 1486.43 1024.689 30.15 30.02 9.956 3.50373 5.01157 31.92 1486.42 1024.692 30.45 30.32 9.952 3.50330 5.01159 31.92 1486.41 1024.694 30.75 30.62 9.944 3.50402 5.01370 31.93 1486.40 1024.707 31.05 30.92 9.940 3.50417 5.01452 31.94 1486.40 1024.713 31.35 31.21 9.935 3.50387 5.01479 31.94 1486.39 1024.716 31.65 31.51 9.935 3.50373 5.01469 31.94 1486.39 1024.717 31.95 31.81 9.931 3.50362 5.01501 31.94 1486.38 1024.720 32.25 32.11 9.919 3.50352 5.01657 31.95 1486.36 1024.731 32.55 32.41 9.915 3.50333 5.01701 31.95 1486.35 1024.735 32.85 32.71 9.913 3.50336 5.01726 31.95 1486.35 1024.737 33.15 33.01 9.911 3.50312 5.01722 31.95 1486.34 1024.739 33.45 33.30 9.910 3.50324 5.01752 31.95 1486.35 1024.742 33.75 33.60 9.909 3.50339 5.01782 31.96 1486.35 1024.745 34.05 33.90 9.909 3.50293 5.01722 31.95 1486.35 1024.742 34.35 34.20 9.908 3.50329 5.01783 31.96 1486.36 1024.747 34.65 34.50 9.907 3.50322 5.01793 31.96 1486.36 1024.749 34.95 34.80 9.901 3.50276 5.01817 31.96 1486.34 1024.752 35.19 35.04 9.901 3.50295 5.01846 31.96 1486.35 1024.755