*2026/01/16 10:37:56.01 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/24 17:02:53.000 END TIME : UTC 2025/06/24 17:03:21.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 145 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.31 2 Depth metres 0.15 43.22 3 Temperature 'deg C (ITS90)' 12.839 13.505 4 Conductivity S/m 3.36873 3.44001 5 Conductance:Specific S/m 4.38223 4.54036 6 Salinity PSS-78 27.84 28.89 7 Speed:Sound m/s 1492.18 1493.45 8 Density kg/m^3 1020.772 1021.885 $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 : 181 LATITUDE : 49 14.47960 N ! (deg min) LONGITUDE : 125 44.77860 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250624_170253 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:32 145 145 MERGEHDR 1.3 2026/01/16 10:35:46 145 145 HDREDIT2 3.2 2026/01/16 10:36:17 ? ? REMOVECH 8.2 2026/01/16 10:36:46 145 145 CALIB 12.1 2026/01/16 10:37:19 145 145 CLEAN 5.3 2026/01/16 10:37:56 145 145 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:17 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 10:36:46 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:19 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 13.505 3.37648 4.38442 27.86 1493.45 1020.772 0.45 0.45 13.435 3.37311 4.38810 27.88 1493.25 1020.803 0.75 0.75 13.413 3.37310 4.39058 27.89 1493.20 1020.821 1.05 1.05 13.423 3.37024 4.38571 27.86 1493.20 1020.794 1.35 1.35 13.436 3.36873 4.38223 27.84 1493.22 1020.775 1.65 1.65 13.443 3.37997 4.39606 27.93 1493.36 1020.850 1.95 1.95 13.431 3.37871 4.39580 27.93 1493.32 1020.852 2.25 2.25 13.401 3.37872 4.39931 27.95 1493.25 1020.876 2.55 2.55 13.383 3.37892 4.40161 27.97 1493.21 1020.893 2.85 2.85 13.367 3.37891 4.40336 27.98 1493.18 1020.905 3.15 3.15 13.358 3.37854 4.40401 27.98 1493.16 1020.911 3.45 3.45 13.344 3.37859 4.40567 27.99 1493.13 1020.924 3.75 3.74 13.330 3.37751 4.40583 27.99 1493.09 1020.928 4.05 4.04 13.315 3.37659 4.40641 28.00 1493.04 1020.934 4.35 4.34 13.295 3.37701 4.40918 28.01 1493.00 1020.953 4.65 4.64 13.275 3.37762 4.41233 28.04 1492.96 1020.974 4.95 4.94 13.261 3.37847 4.41497 28.05 1492.94 1020.991 5.25 5.24 13.244 3.37894 4.41759 28.07 1492.91 1021.009 5.55 5.54 13.224 3.37858 4.41941 28.08 1492.86 1021.023 5.85 5.84 13.202 3.38047 4.42444 28.11 1492.83 1021.054 6.15 6.14 13.182 3.38008 4.42624 28.13 1492.78 1021.068 6.45 6.44 13.167 3.37952 4.42730 28.13 1492.74 1021.077 6.75 6.74 13.148 3.37936 4.42930 28.14 1492.70 1021.092 7.05 7.04 13.134 3.37999 4.43172 28.16 1492.67 1021.108 7.35 7.34 13.118 3.38002 4.43367 28.17 1492.64 1021.122 7.65 7.64 13.102 3.38088 4.43660 28.19 1492.61 1021.141 7.95 7.94 13.090 3.37989 4.43676 28.19 1492.57 1021.145 8.25 8.24 13.077 3.37974 4.43803 28.20 1492.55 1021.155 8.55 8.54 13.069 3.38103 4.44065 28.22 1492.55 1021.171 8.85 8.84 13.064 3.38033 4.44029 28.21 1492.53 1021.171 9.15 9.14 13.061 3.38029 4.44067 28.22 1492.53 1021.175 9.45 9.44 13.052 3.38079 4.44228 28.23 1492.52 1021.186 9.75 9.73 13.043 3.38098 4.44366 28.24 1492.50 1021.196 10.05 10.03 13.032 3.38111 4.44504 28.24 1492.48 1021.206 10.35 10.33 13.024 3.38085 4.44573 28.25 1492.46 1021.212 10.65 10.63 13.016 3.38157 4.44751 28.26 1492.45 1021.224 10.95 10.93 13.006 3.38271 4.45019 28.28 1492.44 1021.241 11.25 11.23 12.997 3.38221 4.45065 28.28 1492.42 1021.246 11.55 11.53 12.988 3.38288 4.45254 28.29 1492.41 1021.259 11.85 11.83 12.981 3.38356 4.45433 28.31 1492.40 1021.271 12.15 12.13 12.973 3.38381 4.45549 28.31 1492.39 1021.279 12.45 12.43 12.966 3.38462 4.45739 28.33 1492.39 1021.292 12.75 12.73 12.959 3.38541 4.45929 28.34 1492.38 1021.304 13.05 13.03 12.955 3.38606 4.46064 28.35 1492.39 1021.313 13.35 13.33 12.950 3.38723 4.46269 28.36 1492.39 1021.326 13.65 13.63 12.946 3.38693 4.46288 28.36 1492.38 1021.329 13.95 13.93 12.938 3.38669 4.46340 28.37 1492.37 1021.334 14.25 14.23 12.933 3.38729 4.46488 28.37 1492.36 1021.344 14.55 14.53 12.927 3.38601 4.46384 28.37 1492.34 1021.341 14.85 14.83 12.921 3.38596 4.46452 28.37 1492.33 1021.346 15.15 15.12 12.913 3.38473 4.46381 28.37 1492.30 1021.345 15.45 15.42 12.906 3.38383 4.46344 28.36 1492.28 1021.345 15.75 15.72 12.902 3.38397 4.46411 28.37 1492.27 1021.350 16.05 16.02 12.897 3.38544 4.46662 28.38 1492.28 1021.366 16.35 16.32 12.891 3.38406 4.46551 28.38 1492.26 1021.362 16.65 16.62 12.885 3.38384 4.46596 28.38 1492.24 1021.366 16.95 16.92 12.880 3.38282 4.46522 28.37 1492.22 1021.364 17.25 17.22 12.875 3.38324 4.46629 28.38 1492.22 1021.372 17.55 17.52 12.873 3.38322 4.46659 28.38 1492.22 1021.375 17.85 17.82 12.871 3.38202 4.46517 28.37 1492.21 1021.369 18.15 18.12 12.866 3.38123 4.46468 28.37 1492.19 1021.368 18.45 18.42 12.859 3.38184 4.46640 28.38 1492.18 1021.380 18.75 18.72 12.855 3.38179 4.46675 28.38 1492.18 1021.383 19.05 19.02 12.855 3.38354 4.46912 28.40 1492.20 1021.397 19.35 19.32 12.866 3.38617 4.47127 28.41 1492.26 1021.409 19.65 19.62 12.877 3.39052 4.47564 28.44 1492.35 1021.433 19.95 19.92 12.885 3.39394 4.47932 28.47 1492.41 1021.453 20.25 20.21 12.892 3.39447 4.47911 28.47 1492.44 1021.452 20.55 20.51 12.896 3.39589 4.48050 28.48 1492.47 1021.461 20.85 20.81 12.898 3.39673 4.48146 28.49 1492.48 1021.467 21.15 21.11 12.899 3.39839 4.48346 28.50 1492.51 1021.479 21.45 21.41 12.900 3.40148 4.48742 28.53 1492.55 1021.502 21.75 21.71 12.901 3.40276 4.48906 28.54 1492.57 1021.512 22.05 22.01 12.900 3.40405 4.49087 28.55 1492.59 1021.523 22.35 22.31 12.898 3.40517 4.49252 28.56 1492.60 1021.533 22.65 22.61 12.898 3.40745 4.49556 28.59 1492.63 1021.551 22.95 22.91 12.897 3.40943 4.49834 28.60 1492.65 1021.568 23.25 23.21 12.892 3.41020 4.49990 28.62 1492.66 1021.578 23.55 23.51 12.888 3.41278 4.50376 28.64 1492.68 1021.601 23.85 23.81 12.885 3.41316 4.50468 28.65 1492.68 1021.608 24.15 24.11 12.884 3.41390 4.50571 28.65 1492.69 1021.615 24.45 24.41 12.881 3.41394 4.50609 28.66 1492.69 1021.618 24.75 24.70 12.880 3.41398 4.50635 28.66 1492.69 1021.621 25.05 25.00 12.884 3.41461 4.50665 28.66 1492.71 1021.624 25.35 25.30 12.889 3.41722 4.50948 28.68 1492.76 1021.639 25.65 25.60 12.886 3.41879 4.51198 28.70 1492.77 1021.655 25.95 25.90 12.883 3.42079 4.51498 28.72 1492.79 1021.673 26.25 26.20 12.885 3.42172 4.51589 28.73 1492.81 1021.679 26.55 26.50 12.890 3.42195 4.51563 28.72 1492.83 1021.678 26.85 26.80 12.892 3.42329 4.51715 28.74 1492.86 1021.687 27.15 27.10 12.889 3.42346 4.51772 28.74 1492.86 1021.692 27.45 27.40 12.888 3.42430 4.51895 28.75 1492.87 1021.700 27.75 27.70 12.888 3.42361 4.51806 28.74 1492.87 1021.697 28.05 28.00 12.888 3.42452 4.51928 28.75 1492.88 1021.705 28.35 28.30 12.887 3.42478 4.51967 28.75 1492.89 1021.708 28.65 28.60 12.887 3.42526 4.52039 28.76 1492.90 1021.713 28.95 28.90 12.882 3.42599 4.52194 28.77 1492.90 1021.724 29.25 29.19 12.874 3.42669 4.52376 28.78 1492.89 1021.736 29.55 29.49 12.868 3.42652 4.52424 28.78 1492.88 1021.740 29.85 29.79 12.867 3.42606 4.52381 28.78 1492.87 1021.739 30.15 30.09 12.866 3.42554 4.52324 28.77 1492.87 1021.738 30.45 30.39 12.859 3.42583 4.52447 28.78 1492.86 1021.747 30.75 30.69 12.853 3.42636 4.52589 28.79 1492.86 1021.756 31.05 30.99 12.847 3.42655 4.52680 28.80 1492.85 1021.763 31.35 31.29 12.844 3.42813 4.52928 28.82 1492.86 1021.778 31.65 31.59 12.843 3.42678 4.52759 28.80 1492.85 1021.771 31.95 31.89 12.842 3.42809 4.52946 28.82 1492.87 1021.782 32.25 32.19 12.841 3.42785 4.52933 28.82 1492.87 1021.783 32.55 32.49 12.839 3.42858 4.53044 28.82 1492.88 1021.790 32.85 32.79 12.840 3.42939 4.53139 28.83 1492.89 1021.797 33.15 33.09 12.840 3.43053 4.53297 28.84 1492.91 1021.807 33.45 33.39 12.841 3.42977 4.53181 28.83 1492.91 1021.801 33.75 33.68 12.844 3.43012 4.53194 28.83 1492.92 1021.803 34.05 33.98 12.844 3.43139 4.53363 28.84 1492.94 1021.814 34.35 34.28 12.843 3.43180 4.53425 28.85 1492.95 1021.818 34.65 34.58 12.844 3.43211 4.53460 28.85 1492.96 1021.821 34.95 34.88 12.844 3.43281 4.53547 28.86 1492.97 1021.827 35.25 35.18 12.845 3.43301 4.53562 28.86 1492.98 1021.829 35.55 35.48 12.843 3.43214 4.53470 28.85 1492.97 1021.826 35.85 35.78 12.843 3.43250 4.53515 28.85 1492.98 1021.830 36.15 36.08 12.843 3.43165 4.53411 28.85 1492.98 1021.825 36.45 36.38 12.842 3.43305 4.53600 28.86 1492.99 1021.837 36.75 36.68 12.843 3.43327 4.53623 28.86 1493.00 1021.839 37.05 36.98 12.843 3.43343 4.53637 28.86 1493.01 1021.841 37.35 37.28 12.845 3.43482 4.53807 28.88 1493.03 1021.852 37.65 37.58 12.847 3.43505 4.53809 28.88 1493.05 1021.853 37.95 37.87 12.847 3.43546 4.53856 28.88 1493.06 1021.857 38.25 38.17 12.848 3.43537 4.53836 28.88 1493.06 1021.857 38.55 38.47 12.850 3.43475 4.53731 28.87 1493.07 1021.852 38.85 38.77 12.851 3.43520 4.53777 28.87 1493.08 1021.856 39.15 39.07 12.852 3.43556 4.53819 28.88 1493.09 1021.859 39.45 39.37 12.853 3.43527 4.53764 28.87 1493.09 1021.857 39.75 39.67 12.854 3.43543 4.53776 28.87 1493.10 1021.859 40.05 39.97 12.856 3.43496 4.53692 28.87 1493.11 1021.855 40.35 40.27 12.856 3.43536 4.53746 28.87 1493.12 1021.860 40.65 40.57 12.853 3.43641 4.53910 28.88 1493.13 1021.870 40.95 40.87 12.860 3.43686 4.53897 28.88 1493.15 1021.870 41.25 41.17 12.868 3.43688 4.53804 28.88 1493.18 1021.865 41.55 41.47 12.871 3.43618 4.53668 28.87 1493.18 1021.859 41.85 41.76 12.872 3.43633 4.53683 28.87 1493.19 1021.861 42.15 42.06 12.870 3.43663 4.53735 28.87 1493.20 1021.865 42.45 42.36 12.871 3.43763 4.53858 28.88 1493.21 1021.873 42.75 42.66 12.874 3.43816 4.53894 28.88 1493.23 1021.876 43.05 42.96 12.878 3.43934 4.54009 28.89 1493.26 1021.883 43.31 43.22 12.882 3.44001 4.54036 28.89 1493.28 1021.885