*2026/01/16 10:37:48.32 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 22:32:27.000 END TIME : UTC 2025/02/19 22:32:48.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 106 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.78 2 Depth metres 0.15 31.64 3 Temperature 'deg C (ITS90)' 7.304 9.91 4 Conductivity S/m 1.86382 3.48643 5 Conductance:Specific S/m 2.88478 4.99354 6 Salinity PSS-78 17.2 31.79 7 Speed:Sound m/s 1457.72 1486.11 8 Density kg/m^3 1013.406 1024.602 $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 : 56 LATITUDE : 49 41.71540 N ! (deg min) LONGITUDE : 126 37.57900 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_223227 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 106 106 MERGEHDR 1.3 2026/01/16 10:35:40 106 106 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:37 106 106 CALIB 12.1 2026/01/16 10:37:11 106 106 CLEAN 5.3 2026/01/16 10:37:48 106 106 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 7.304 1.86382 2.88478 17.20 1457.72 1013.406 0.45 0.45 7.677 2.24318 3.43234 20.83 1463.71 1016.212 0.75 0.75 8.176 2.84522 4.28811 26.66 1472.85 1020.717 1.05 1.05 8.559 3.08120 4.59077 28.80 1476.95 1022.337 1.35 1.35 8.753 3.23870 4.79761 30.27 1479.49 1023.457 1.65 1.65 8.759 3.27380 4.84878 30.62 1479.96 1023.738 1.95 1.95 8.768 3.27568 4.85022 30.64 1480.01 1023.747 2.25 2.25 8.800 3.27635 4.84660 30.61 1480.11 1023.727 2.55 2.55 8.817 3.27874 4.84778 30.62 1480.19 1023.734 2.85 2.84 8.829 3.27995 4.84784 30.63 1480.24 1023.735 3.15 3.14 8.835 3.28049 4.84778 30.63 1480.27 1023.736 3.45 3.44 8.837 3.28024 4.84711 30.62 1480.28 1023.733 3.75 3.74 8.839 3.28098 4.84790 30.63 1480.30 1023.739 4.05 4.04 8.841 3.28220 4.84938 30.64 1480.32 1023.748 4.35 4.34 8.845 3.28426 4.85193 30.66 1480.36 1023.763 4.65 4.64 8.848 3.28651 4.85479 30.68 1480.40 1023.780 4.95 4.94 8.853 3.28792 4.85622 30.69 1480.44 1023.789 5.25 5.23 8.857 3.28941 4.85783 30.70 1480.47 1023.799 5.55 5.53 8.858 3.29109 4.86007 30.72 1480.50 1023.812 5.85 5.83 8.864 3.29346 4.86284 30.74 1480.55 1023.828 6.15 6.13 8.868 3.29476 4.86418 30.75 1480.58 1023.837 6.45 6.43 8.871 3.29638 4.86603 30.76 1480.62 1023.848 6.75 6.73 8.874 3.29686 4.86637 30.76 1480.64 1023.851 7.05 7.03 8.878 3.29819 4.86779 30.77 1480.67 1023.860 7.35 7.32 8.881 3.29877 4.86823 30.77 1480.69 1023.864 7.65 7.62 8.883 3.29817 4.86697 30.77 1480.69 1023.858 7.95 7.92 8.885 3.29909 4.86808 30.77 1480.71 1023.865 8.25 8.22 8.886 3.29973 4.86884 30.78 1480.73 1023.871 8.55 8.52 8.888 3.29976 4.86856 30.78 1480.74 1023.870 8.85 8.82 8.890 3.29986 4.86852 30.78 1480.75 1023.871 9.15 9.12 8.891 3.29949 4.86784 30.77 1480.75 1023.869 9.45 9.42 8.892 3.30054 4.86922 30.78 1480.77 1023.878 9.75 9.71 8.895 3.30026 4.86843 30.78 1480.78 1023.874 10.05 10.01 8.896 3.30060 4.86876 30.78 1480.80 1023.877 10.35 10.31 8.896 3.30050 4.86852 30.78 1480.80 1023.877 10.65 10.61 8.899 3.30056 4.86828 30.78 1480.81 1023.877 10.95 10.91 8.902 3.30200 4.86999 30.79 1480.84 1023.888 11.25 11.21 8.905 3.30281 4.87075 30.79 1480.87 1023.893 11.55 11.51 8.910 3.30376 4.87136 30.80 1480.90 1023.897 11.85 11.80 8.914 3.30570 4.87372 30.82 1480.94 1023.911 12.15 12.10 8.914 3.30597 4.87404 30.82 1480.95 1023.914 12.45 12.40 8.914 3.30542 4.87330 30.81 1480.94 1023.912 12.75 12.70 8.913 3.30597 4.87414 30.82 1480.95 1023.918 13.05 13.00 8.914 3.30552 4.87342 30.81 1480.95 1023.915 13.35 13.30 8.914 3.30558 4.87354 30.81 1480.96 1023.917 13.65 13.60 8.920 3.30568 4.87274 30.81 1480.98 1023.913 13.95 13.90 8.934 3.30665 4.87218 30.81 1481.04 1023.911 14.25 14.19 8.941 3.31123 4.87795 30.85 1481.12 1023.944 14.55 14.49 8.948 3.31537 4.88298 30.88 1481.19 1023.972 14.85 14.79 8.965 3.31671 4.88254 30.88 1481.26 1023.970 15.15 15.09 8.980 3.31927 4.88422 30.90 1481.34 1023.980 15.45 15.39 8.992 3.32032 4.88404 30.90 1481.39 1023.980 15.75 15.69 8.998 3.32254 4.88641 30.92 1481.44 1023.994 16.05 15.99 9.005 3.32320 4.88639 30.92 1481.47 1023.995 16.35 16.28 9.020 3.32615 4.88846 30.93 1481.55 1024.007 16.65 16.58 9.048 3.32755 4.88653 30.92 1481.65 1023.996 16.95 16.88 9.069 3.33491 4.89437 30.98 1481.80 1024.039 17.25 17.18 9.094 3.34194 4.90106 31.03 1481.96 1024.076 17.55 17.48 9.123 3.34373 4.89960 31.02 1482.06 1024.068 17.85 17.78 9.139 3.34521 4.89933 31.02 1482.13 1024.067 18.15 18.08 9.150 3.34688 4.90034 31.03 1482.18 1024.074 18.45 18.37 9.190 3.34858 4.89704 31.01 1482.32 1024.055 18.75 18.67 9.283 3.36541 4.90831 31.11 1482.78 1024.114 19.05 18.97 9.336 3.38018 4.92221 31.21 1483.11 1024.188 19.35 19.27 9.395 3.38770 4.92467 31.24 1483.36 1024.200 19.65 19.57 9.434 3.39932 4.93597 31.32 1483.61 1024.261 19.95 19.87 9.468 3.40176 4.93468 31.32 1483.74 1024.254 20.25 20.17 9.493 3.40251 4.93217 31.30 1483.81 1024.240 20.55 20.46 9.547 3.40893 4.93380 31.32 1484.04 1024.247 20.85 20.76 9.587 3.42301 4.94835 31.43 1484.32 1024.326 21.15 21.06 9.608 3.43546 4.96345 31.54 1484.54 1024.410 21.45 21.36 9.641 3.43768 4.96192 31.53 1484.65 1024.401 21.75 21.66 9.668 3.43714 4.95716 31.50 1484.72 1024.374 22.05 21.96 9.697 3.43862 4.95514 31.49 1484.82 1024.363 22.35 22.26 9.718 3.44221 4.95737 31.51 1484.93 1024.375 22.65 22.55 9.729 3.44569 4.96080 31.53 1485.00 1024.394 22.95 22.85 9.746 3.45129 4.96646 31.58 1485.12 1024.426 23.25 23.15 9.770 3.45405 4.96706 31.58 1485.22 1024.429 23.55 23.45 9.785 3.45560 4.96706 31.59 1485.28 1024.429 23.85 23.75 9.793 3.45544 4.96578 31.58 1485.31 1024.423 24.15 24.05 9.797 3.45598 4.96586 31.58 1485.33 1024.425 24.45 24.35 9.802 3.45640 4.96583 31.58 1485.35 1024.425 24.75 24.64 9.806 3.45818 4.96779 31.59 1485.39 1024.437 25.05 24.94 9.805 3.46170 4.97306 31.63 1485.43 1024.468 25.35 25.24 9.821 3.46030 4.96865 31.60 1485.46 1024.443 25.65 25.54 9.830 3.46688 4.97683 31.66 1485.57 1024.489 25.95 25.84 9.838 3.47074 4.98128 31.69 1485.64 1024.515 26.25 26.14 9.856 3.47271 4.98148 31.70 1485.72 1024.516 26.55 26.43 9.874 3.47452 4.98160 31.70 1485.79 1024.517 26.85 26.73 9.880 3.47533 4.98185 31.70 1485.82 1024.519 27.15 27.03 9.885 3.47529 4.98102 31.70 1485.84 1024.515 27.45 27.33 9.892 3.47576 4.98074 31.69 1485.87 1024.515 27.75 27.63 9.897 3.47674 4.98141 31.70 1485.90 1024.519 28.05 27.93 9.903 3.47888 4.98368 31.72 1485.94 1024.533 28.35 28.23 9.903 3.48069 4.98623 31.73 1485.97 1024.548 28.65 28.52 9.906 3.48214 4.98790 31.75 1486.00 1024.558 28.95 28.82 9.910 3.48163 4.98656 31.74 1486.01 1024.552 29.25 29.12 9.908 3.48294 4.98871 31.75 1486.03 1024.565 29.55 29.42 9.908 3.48290 4.98869 31.75 1486.03 1024.566 29.85 29.72 9.906 3.48289 4.98891 31.75 1486.03 1024.569 30.15 30.02 9.905 3.48287 4.98905 31.75 1486.03 1024.571 30.45 30.31 9.904 3.48314 4.98962 31.76 1486.04 1024.575 30.75 30.61 9.904 3.48428 4.99122 31.77 1486.06 1024.586 31.05 30.91 9.906 3.48476 4.99169 31.77 1486.07 1024.589 31.35 31.21 9.908 3.48619 4.99340 31.78 1486.10 1024.600 31.78 31.64 9.909 3.48643 4.99354 31.79 1486.11 1024.602