*2026/01/16 10:37:47.35 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/18 21:30:10.000 END TIME : UTC 2025/02/18 21:30:26.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 85 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.46 2 Depth metres 0.15 25.35 3 Temperature 'deg C (ITS90)' 8.334 8.853 4 Conductivity S/m 3.25052 3.26495 5 Conductance:Specific S/m 4.80097 4.88586 6 Salinity PSS-78 30.3 30.81 7 Speed:Sound m/s 1478.97 1479.96 8 Density kg/m^3 1023.467 1024.055 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 44 LATITUDE : 49 52.26270 N ! (deg min) LONGITUDE : 126 55.86190 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250218_213010 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 85 85 MERGEHDR 1.3 2026/01/16 10:35:39 85 85 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 85 85 CALIB 12.1 2026/01/16 10:37:11 85 85 CLEAN 5.3 2026/01/16 10:37:47 85 85 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:11 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 10:37:42 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 8.844 3.25816 4.81353 30.39 1479.96 1023.535 0.45 0.45 8.853 3.25052 4.80097 30.30 1479.89 1023.467 0.75 0.75 8.823 3.25455 4.81118 30.37 1479.87 1023.526 1.05 1.05 8.761 3.25747 4.82433 30.45 1479.74 1023.601 1.35 1.34 8.721 3.25886 4.83215 30.50 1479.66 1023.647 1.65 1.64 8.711 3.26057 4.83608 30.53 1479.66 1023.670 1.95 1.94 8.722 3.25957 4.83295 30.51 1479.68 1023.654 2.25 2.24 8.726 3.26034 4.83357 30.51 1479.70 1023.658 2.55 2.54 8.721 3.26044 4.83447 30.52 1479.70 1023.665 2.85 2.84 8.712 3.25881 4.83337 30.51 1479.66 1023.660 3.15 3.14 8.686 3.25815 4.83603 30.52 1479.58 1023.677 3.45 3.44 8.653 3.26034 4.84402 30.58 1479.53 1023.723 3.75 3.73 8.643 3.26080 4.84617 30.59 1479.51 1023.737 4.05 4.03 8.640 3.26050 4.84619 30.59 1479.50 1023.738 4.35 4.33 8.632 3.26149 4.84882 30.61 1479.50 1023.754 4.65 4.63 8.626 3.26427 4.85374 30.64 1479.52 1023.782 4.95 4.93 8.619 3.26404 4.85442 30.64 1479.51 1023.788 5.25 5.23 8.611 3.26407 4.85567 30.65 1479.49 1023.796 5.55 5.53 8.606 3.26465 4.85729 30.66 1479.49 1023.806 5.85 5.83 8.589 3.26457 4.85960 30.67 1479.45 1023.821 6.15 6.12 8.565 3.26427 4.86264 30.69 1479.38 1023.840 6.45 6.42 8.543 3.26431 4.86580 30.71 1479.33 1023.859 6.75 6.72 8.528 3.26437 4.86815 30.72 1479.29 1023.874 7.05 7.02 8.518 3.26410 4.86916 30.73 1479.27 1023.881 7.35 7.32 8.510 3.26460 4.87111 30.74 1479.26 1023.893 7.65 7.62 8.506 3.26459 4.87166 30.75 1479.25 1023.897 7.95 7.92 8.504 3.26425 4.87138 30.74 1479.25 1023.897 8.25 8.21 8.504 3.26446 4.87177 30.75 1479.25 1023.901 8.55 8.51 8.503 3.26444 4.87192 30.75 1479.25 1023.903 8.85 8.81 8.501 3.26459 4.87245 30.75 1479.26 1023.907 9.15 9.11 8.498 3.26459 4.87282 30.75 1479.25 1023.910 9.45 9.41 8.497 3.26452 4.87286 30.75 1479.25 1023.912 9.75 9.71 8.496 3.26447 4.87291 30.75 1479.26 1023.913 10.05 10.01 8.497 3.26439 4.87270 30.75 1479.26 1023.914 10.35 10.30 8.493 3.26484 4.87387 30.76 1479.26 1023.921 10.65 10.60 8.491 3.26371 4.87253 30.75 1479.25 1023.915 10.95 10.90 8.487 3.26469 4.87454 30.76 1479.25 1023.928 11.25 11.20 8.487 3.26495 4.87499 30.76 1479.26 1023.932 11.55 11.50 8.482 3.26469 4.87526 30.77 1479.25 1023.934 11.85 11.80 8.478 3.26375 4.87450 30.76 1479.23 1023.932 12.15 12.10 8.475 3.26300 4.87384 30.75 1479.22 1023.929 12.45 12.40 8.468 3.26293 4.87465 30.76 1479.20 1023.935 12.75 12.69 8.452 3.26230 4.87608 30.77 1479.16 1023.945 13.05 12.99 8.440 3.26232 4.87784 30.78 1479.13 1023.956 13.35 13.29 8.432 3.26233 4.87911 30.78 1479.11 1023.965 13.65 13.59 8.428 3.26143 4.87835 30.78 1479.09 1023.962 13.95 13.89 8.423 3.26240 4.88043 30.79 1479.10 1023.975 14.25 14.19 8.423 3.26139 4.87894 30.78 1479.09 1023.968 14.55 14.49 8.419 3.26169 4.87993 30.79 1479.09 1023.975 14.85 14.78 8.417 3.26160 4.88017 30.79 1479.09 1023.977 15.15 15.08 8.414 3.26186 4.88093 30.79 1479.09 1023.983 15.45 15.38 8.412 3.26172 4.88101 30.79 1479.08 1023.985 15.75 15.68 8.409 3.26194 4.88190 30.80 1479.08 1023.991 16.05 15.98 8.408 3.26104 4.88064 30.79 1479.07 1023.985 16.35 16.28 8.409 3.26122 4.88079 30.79 1479.08 1023.987 16.65 16.58 8.406 3.26087 4.88061 30.79 1479.08 1023.988 16.95 16.87 8.401 3.26052 4.88082 30.79 1479.06 1023.990 17.25 17.17 8.401 3.26086 4.88144 30.79 1479.07 1023.995 17.55 17.47 8.398 3.26028 4.88090 30.79 1479.06 1023.993 17.85 17.77 8.397 3.26051 4.88149 30.79 1479.07 1023.998 18.15 18.07 8.396 3.26099 4.88230 30.80 1479.07 1024.004 18.45 18.37 8.395 3.26065 4.88191 30.80 1479.07 1024.003 18.75 18.67 8.396 3.26028 4.88131 30.79 1479.07 1024.001 19.05 18.97 8.395 3.26067 4.88193 30.80 1479.08 1024.005 19.35 19.26 8.393 3.26044 4.88188 30.80 1479.08 1024.006 19.65 19.56 8.392 3.26041 4.88204 30.80 1479.08 1024.009 19.95 19.86 8.387 3.26080 4.88327 30.80 1479.08 1024.017 20.25 20.16 8.385 3.25967 4.88189 30.79 1479.06 1024.011 20.55 20.46 8.384 3.25945 4.88174 30.79 1479.06 1024.011 20.85 20.76 8.383 3.25971 4.88231 30.80 1479.06 1024.016 21.15 21.06 8.382 3.25981 4.88257 30.80 1479.07 1024.018 21.45 21.35 8.380 3.25993 4.88299 30.80 1479.07 1024.022 21.75 21.65 8.377 3.25915 4.88230 30.79 1479.06 1024.019 22.05 21.95 8.375 3.25940 4.88303 30.80 1479.06 1024.025 22.35 22.25 8.372 3.25924 4.88315 30.80 1479.05 1024.027 22.65 22.55 8.370 3.25837 4.88221 30.79 1479.04 1024.023 22.95 22.85 8.367 3.25866 4.88302 30.80 1479.04 1024.029 23.25 23.15 8.367 3.25870 4.88311 30.80 1479.05 1024.031 23.55 23.44 8.368 3.25821 4.88218 30.79 1479.05 1024.027 23.85 23.74 8.365 3.25881 4.88358 30.80 1479.05 1024.036 24.15 24.04 8.360 3.25865 4.88403 30.80 1479.04 1024.040 24.45 24.34 8.356 3.25790 4.88349 30.80 1479.03 1024.038 24.75 24.64 8.350 3.25757 4.88390 30.80 1479.01 1024.042 25.05 24.94 8.338 3.25768 4.88586 30.81 1478.98 1024.054 25.46 25.35 8.334 3.25718 4.88569 30.81 1478.97 1024.055