*2026/01/16 09:57:56.34 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/17 00:07:52.000 END TIME : UTC 2024/10/17 00:08:16.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 125 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.33 2 Depth metres 0.15 37.15 3 Temperature 'deg C (ITS90)' 10.368 12.171 4 Conductivity S/m 3.26795 3.56402 5 Conductance:Specific S/m 4.40642 5.02637 6 Salinity PSS-78 27.9 32.07 7 Speed:Sound m/s 1488.2 1489.58 8 Density kg/m^3 1021.069 1024.775 $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 : 280 LATITUDE : 48 52.95050 N ! (deg min) LONGITUDE : 125 4.56600 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241017_000752 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 125 125 MERGEHDR 1.3 2026/01/16 09:54:09 125 125 HDREDIT2 3.2 2026/01/16 09:55:14 ? ? REMOVECH 8.2 2026/01/16 09:56:24 125 125 CALIB 12.1 2026/01/16 09:56:57 125 125 CLEAN 5.3 2026/01/16 09:57:56 125 125 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:14 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:57 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 12.171 3.27989 4.41188 27.94 1489.00 1021.087 0.45 0.45 12.082 3.26795 4.40642 27.90 1488.64 1021.069 0.75 0.75 12.048 3.32058 4.48145 28.42 1489.15 1021.481 1.05 1.05 12.037 3.34056 4.50978 28.62 1489.36 1021.638 1.35 1.35 12.002 3.35694 4.53620 28.80 1489.46 1021.787 1.65 1.65 11.932 3.36306 4.55303 28.91 1489.35 1021.887 1.95 1.95 11.737 3.38185 4.60284 29.25 1489.07 1022.181 2.25 2.25 11.576 3.46126 4.73155 30.14 1489.58 1022.902 2.55 2.54 11.431 3.49070 4.79085 30.54 1489.56 1023.243 2.85 2.84 11.199 3.53884 4.88800 31.20 1489.55 1023.800 3.15 3.14 11.010 3.54795 4.92634 31.46 1489.19 1024.030 3.45 3.44 10.951 3.54781 4.93424 31.50 1489.04 1024.079 3.75 3.74 10.877 3.54828 4.94502 31.57 1488.87 1024.146 4.05 4.04 10.826 3.54886 4.95284 31.62 1488.75 1024.195 4.35 4.34 10.805 3.54914 4.95625 31.64 1488.71 1024.217 4.65 4.63 10.783 3.54916 4.95928 31.66 1488.66 1024.237 4.95 4.93 10.770 3.55182 4.96485 31.70 1488.66 1024.270 5.25 5.23 10.767 3.55151 4.96475 31.70 1488.65 1024.271 5.55 5.53 10.760 3.55255 4.96720 31.72 1488.65 1024.286 5.85 5.83 10.748 3.55233 4.96863 31.72 1488.62 1024.296 6.15 6.13 10.741 3.55238 4.96962 31.73 1488.61 1024.303 6.45 6.43 10.738 3.55304 4.97095 31.74 1488.62 1024.312 6.75 6.72 10.725 3.55287 4.97249 31.75 1488.59 1024.323 7.05 7.02 10.712 3.55200 4.97306 31.75 1488.55 1024.328 7.35 7.32 10.700 3.55210 4.97493 31.76 1488.53 1024.341 7.65 7.62 10.693 3.55112 4.97450 31.76 1488.50 1024.340 7.95 7.92 10.690 3.55230 4.97657 31.77 1488.51 1024.353 8.25 8.22 10.689 3.55121 4.97527 31.76 1488.50 1024.348 8.55 8.52 10.685 3.55126 4.97589 31.77 1488.50 1024.353 8.85 8.81 10.680 3.55163 4.97710 31.77 1488.49 1024.361 9.15 9.11 10.676 3.55130 4.97715 31.77 1488.49 1024.363 9.45 9.41 10.675 3.55198 4.97823 31.78 1488.50 1024.370 9.75 9.71 10.676 3.55209 4.97832 31.78 1488.50 1024.372 10.05 10.01 10.673 3.55256 4.97928 31.79 1488.51 1024.378 10.35 10.31 10.670 3.55314 4.98050 31.80 1488.51 1024.387 10.65 10.61 10.670 3.55283 4.98016 31.79 1488.51 1024.386 10.95 10.90 10.668 3.55295 4.98060 31.80 1488.51 1024.390 11.25 11.20 10.665 3.55429 4.98282 31.81 1488.53 1024.404 11.55 11.50 10.660 3.55435 4.98373 31.82 1488.52 1024.410 11.85 11.80 10.658 3.55354 4.98282 31.81 1488.51 1024.407 12.15 12.10 10.656 3.55339 4.98288 31.81 1488.51 1024.408 12.45 12.40 10.654 3.55295 4.98255 31.81 1488.50 1024.408 12.75 12.70 10.650 3.55281 4.98283 31.81 1488.50 1024.411 13.05 12.99 10.646 3.55285 4.98347 31.81 1488.49 1024.416 13.35 13.29 10.640 3.55215 4.98335 31.81 1488.47 1024.417 13.65 13.59 10.634 3.55206 4.98414 31.82 1488.46 1024.423 13.95 13.89 10.629 3.55296 4.98609 31.83 1488.46 1024.436 14.25 14.19 10.625 3.55223 4.98555 31.83 1488.45 1024.434 14.55 14.49 10.624 3.55224 4.98571 31.83 1488.45 1024.437 14.85 14.79 10.623 3.55237 4.98612 31.83 1488.45 1024.440 15.15 15.08 10.623 3.55321 4.98721 31.84 1488.47 1024.448 15.45 15.38 10.624 3.55286 4.98656 31.83 1488.47 1024.445 15.75 15.68 10.625 3.55334 4.98713 31.84 1488.49 1024.449 16.05 15.98 10.626 3.55342 4.98713 31.84 1488.49 1024.451 16.35 16.28 10.627 3.55405 4.98790 31.84 1488.51 1024.456 16.65 16.58 10.630 3.55462 4.98819 31.84 1488.53 1024.459 16.95 16.87 10.632 3.55451 4.98780 31.84 1488.54 1024.458 17.25 17.17 10.633 3.55447 4.98767 31.84 1488.54 1024.458 17.55 17.47 10.628 3.55404 4.98770 31.84 1488.53 1024.460 17.85 17.77 10.620 3.55405 4.98881 31.85 1488.52 1024.468 18.15 18.07 10.617 3.55287 4.98759 31.84 1488.50 1024.463 18.45 18.37 10.607 3.55273 4.98878 31.84 1488.48 1024.471 18.75 18.67 10.595 3.55294 4.99077 31.86 1488.45 1024.484 19.05 18.96 10.585 3.55152 4.99023 31.85 1488.42 1024.484 19.35 19.26 10.581 3.55083 4.98984 31.85 1488.40 1024.483 19.65 19.56 10.579 3.55147 4.99095 31.86 1488.41 1024.491 19.95 19.86 10.584 3.55118 4.98987 31.85 1488.42 1024.485 20.25 20.16 10.586 3.55394 4.99340 31.87 1488.47 1024.506 20.55 20.46 10.588 3.55457 4.99406 31.88 1488.49 1024.511 20.85 20.76 10.598 3.55533 4.99376 31.88 1488.52 1024.510 21.15 21.05 10.605 3.55513 4.99250 31.87 1488.54 1024.503 21.45 21.35 10.611 3.55631 4.99334 31.88 1488.58 1024.509 21.75 21.65 10.628 3.55773 4.99289 31.87 1488.64 1024.506 22.05 21.95 10.635 3.55916 4.99384 31.88 1488.68 1024.512 22.35 22.25 10.637 3.55973 4.99439 31.89 1488.70 1024.516 22.65 22.55 10.639 3.55929 4.99358 31.88 1488.70 1024.513 22.95 22.85 10.640 3.56010 4.99459 31.89 1488.72 1024.520 23.25 23.14 10.643 3.56036 4.99444 31.89 1488.74 1024.520 23.55 23.44 10.650 3.56050 4.99369 31.88 1488.76 1024.517 23.85 23.74 10.657 3.56249 4.99546 31.90 1488.81 1024.527 24.15 24.04 10.660 3.56369 4.99669 31.90 1488.83 1024.535 24.45 24.34 10.660 3.56402 4.99719 31.91 1488.84 1024.539 24.75 24.64 10.660 3.56373 4.99676 31.90 1488.84 1024.538 25.05 24.93 10.658 3.56358 4.99694 31.91 1488.84 1024.540 25.35 25.23 10.653 3.56358 4.99754 31.91 1488.83 1024.545 25.65 25.53 10.647 3.56385 4.99884 31.92 1488.83 1024.554 25.95 25.83 10.644 3.56282 4.99783 31.91 1488.81 1024.550 26.25 26.13 10.640 3.56347 4.99932 31.92 1488.81 1024.560 26.55 26.43 10.631 3.56386 5.00107 31.93 1488.80 1024.571 26.85 26.73 10.623 3.56339 5.00151 31.93 1488.78 1024.576 27.15 27.02 10.617 3.56291 5.00174 31.93 1488.76 1024.579 27.45 27.32 10.588 3.56240 5.00503 31.95 1488.69 1024.600 27.75 27.62 10.560 3.55990 5.00541 31.95 1488.60 1024.606 28.05 27.92 10.541 3.55941 5.00750 31.97 1488.54 1024.620 28.35 28.22 10.515 3.55882 5.01029 31.98 1488.48 1024.639 28.65 28.52 10.500 3.55948 5.01329 32.00 1488.45 1024.658 28.95 28.81 10.492 3.55914 5.01406 32.01 1488.43 1024.664 29.25 29.11 10.485 3.55928 5.01518 32.01 1488.42 1024.672 29.55 29.41 10.481 3.55897 5.01533 32.01 1488.41 1024.674 29.85 29.71 10.476 3.55905 5.01615 32.02 1488.41 1024.680 30.15 30.01 10.469 3.55896 5.01697 32.02 1488.39 1024.687 30.45 30.31 10.466 3.55926 5.01784 32.03 1488.39 1024.693 30.75 30.61 10.462 3.55899 5.01804 32.03 1488.38 1024.696 31.05 30.90 10.458 3.55848 5.01794 32.03 1488.37 1024.697 31.35 31.20 10.449 3.55763 5.01792 32.03 1488.35 1024.698 31.65 31.50 10.443 3.55724 5.01831 32.03 1488.33 1024.702 31.95 31.80 10.437 3.55764 5.01972 32.04 1488.32 1024.712 32.25 32.10 10.432 3.55746 5.02011 32.04 1488.31 1024.716 32.55 32.40 10.429 3.55731 5.02028 32.04 1488.31 1024.718 32.85 32.69 10.423 3.55705 5.02075 32.04 1488.30 1024.722 33.15 32.99 10.416 3.55680 5.02150 32.05 1488.28 1024.728 33.45 33.29 10.415 3.55644 5.02103 32.04 1488.28 1024.727 33.75 33.59 10.418 3.55653 5.02084 32.04 1488.29 1024.727 34.05 33.89 10.415 3.55693 5.02182 32.05 1488.29 1024.734 34.35 34.19 10.409 3.55636 5.02182 32.05 1488.28 1024.735 34.65 34.49 10.406 3.55705 5.02316 32.06 1488.28 1024.744 34.95 34.78 10.406 3.55738 5.02365 32.06 1488.29 1024.748 35.25 35.08 10.405 3.55700 5.02328 32.06 1488.29 1024.748 35.55 35.38 10.401 3.55654 5.02316 32.06 1488.28 1024.748 35.85 35.68 10.394 3.55654 5.02414 32.06 1488.27 1024.756 36.15 35.98 10.391 3.55659 5.02466 32.06 1488.26 1024.760 36.45 36.28 10.387 3.55644 5.02502 32.07 1488.26 1024.764 36.75 36.57 10.385 3.55585 5.02448 32.06 1488.25 1024.762 37.05 36.87 10.368 3.55541 5.02637 32.07 1488.20 1024.775 37.33 37.15 10.369 3.55540 5.02609 32.07 1488.21 1024.774