*2026/01/16 10:37:49.35 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/10 22:48:24.000 END TIME : UTC 2025/03/10 22:48:50.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 133 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.88 2 Depth metres 0.15 39.86 3 Temperature 'deg C (ITS90)' 8.009 9.078 4 Conductivity S/m 1.03276 2.97552 5 Conductance:Specific S/m 1.56433 4.37032 6 Salinity PSS-78 8.89 27.32 7 Speed:Sound m/s 1450.3 1477.69 8 Density kg/m^3 1006.836 1021.288 $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 : 71 LATITUDE : 49 7.55390 N ! (deg min) LONGITUDE : 125 44.44490 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250310_224824 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 133 133 MERGEHDR 1.3 2026/01/16 10:35:40 133 133 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 133 133 CALIB 12.1 2026/01/16 10:37:13 133 133 CLEAN 5.3 2026/01/16 10:37:49 133 133 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 8.009 1.03276 1.56433 8.89 1450.30 1006.836 0.45 0.46 8.167 1.16432 1.75526 10.07 1452.40 1007.749 0.75 0.76 8.315 1.48673 2.23135 13.07 1456.69 1010.078 1.05 1.06 8.406 1.58557 2.37320 13.98 1458.18 1010.780 1.35 1.36 8.423 1.72556 2.58137 15.32 1459.89 1011.824 1.65 1.67 8.407 1.93261 2.89253 17.34 1462.31 1013.404 1.95 1.97 8.381 2.03044 3.04134 18.31 1463.41 1014.169 2.25 2.27 8.406 2.21680 3.31799 20.14 1465.75 1015.596 2.55 2.57 8.452 2.36424 3.53379 21.59 1467.71 1016.719 2.85 2.87 8.489 2.41547 3.60635 22.08 1468.46 1017.098 3.15 3.17 8.540 2.43580 3.63122 22.25 1468.87 1017.227 3.45 3.47 8.581 2.45420 3.65411 22.41 1469.23 1017.346 3.75 3.77 8.640 2.47857 3.68391 22.61 1469.71 1017.501 4.05 4.07 8.696 2.60021 3.85828 23.79 1471.38 1018.420 4.35 4.37 8.734 2.65353 3.93301 24.31 1472.16 1018.815 4.65 4.67 8.779 2.67421 3.95842 24.48 1472.55 1018.949 4.95 4.97 8.793 2.70893 4.00809 24.82 1473.03 1019.213 5.25 5.27 8.789 2.72171 4.02749 24.95 1473.18 1019.318 5.55 5.57 8.783 2.72647 4.03531 25.01 1473.22 1019.361 5.85 5.87 8.769 2.72833 4.03967 25.03 1473.21 1019.387 6.15 6.17 8.752 2.72954 4.04354 25.06 1473.18 1019.409 6.45 6.47 8.757 2.73294 4.04793 25.09 1473.24 1019.434 6.75 6.77 8.767 2.73721 4.05307 25.13 1473.33 1019.462 7.05 7.07 8.759 2.74326 4.06302 25.19 1473.38 1019.517 7.35 7.37 8.769 2.75332 4.07665 25.29 1473.54 1019.590 7.65 7.67 8.776 2.75667 4.08083 25.32 1473.61 1019.613 7.95 7.97 8.781 2.76246 4.08875 25.37 1473.70 1019.657 8.25 8.27 8.790 2.77606 4.10777 25.50 1473.90 1019.759 8.55 8.57 8.799 2.78156 4.11488 25.55 1474.00 1019.798 8.85 8.87 8.808 2.78538 4.11937 25.58 1474.08 1019.823 9.15 9.17 8.817 2.78690 4.12059 25.59 1474.13 1019.830 9.45 9.47 8.830 2.78908 4.12216 25.60 1474.20 1019.839 9.75 9.77 8.845 2.79462 4.12854 25.65 1474.31 1019.874 10.05 10.07 8.862 2.80352 4.13968 25.73 1474.48 1019.934 10.35 10.37 8.884 2.82664 4.17108 25.94 1474.83 1020.102 10.65 10.67 8.902 2.84684 4.19864 26.14 1475.14 1020.250 10.95 10.97 8.917 2.85675 4.21141 26.22 1475.31 1020.319 11.25 11.27 8.926 2.86167 4.21757 26.27 1475.40 1020.352 11.55 11.57 8.935 2.86435 4.22032 26.29 1475.47 1020.368 11.85 11.87 8.958 2.86733 4.22185 26.30 1475.57 1020.376 12.15 12.17 8.979 2.86811 4.22042 26.29 1475.65 1020.369 12.45 12.47 8.995 2.87527 4.22896 26.35 1475.79 1020.415 12.75 12.77 8.999 2.87782 4.23217 26.38 1475.84 1020.433 13.05 13.07 9.008 2.87935 4.23339 26.38 1475.88 1020.441 13.35 13.37 9.018 2.87916 4.23186 26.38 1475.91 1020.433 13.65 13.67 9.026 2.88127 4.23389 26.39 1475.97 1020.445 13.95 13.97 9.036 2.88576 4.23924 26.43 1476.06 1020.475 14.25 14.27 9.040 2.88944 4.24417 26.46 1476.12 1020.502 14.55 14.57 9.033 2.89329 4.25072 26.51 1476.15 1020.539 14.85 14.87 9.023 2.89200 4.25011 26.50 1476.11 1020.537 15.15 15.17 9.018 2.89080 4.24891 26.49 1476.09 1020.533 15.45 15.47 9.017 2.89123 4.24968 26.50 1476.09 1020.538 15.75 15.77 9.018 2.89369 4.25315 26.52 1476.13 1020.558 16.05 16.07 9.026 2.89923 4.26035 26.57 1476.23 1020.597 16.35 16.37 9.036 2.90095 4.26165 26.58 1476.28 1020.605 16.65 16.67 9.045 2.90239 4.26260 26.59 1476.33 1020.611 16.95 16.96 9.047 2.90332 4.26375 26.60 1476.35 1020.618 17.25 17.26 9.045 2.90308 4.26362 26.60 1476.35 1020.619 17.55 17.56 9.042 2.90474 4.26641 26.61 1476.37 1020.636 17.85 17.86 9.037 2.90492 4.26727 26.62 1476.36 1020.642 18.15 18.16 9.032 2.90505 4.26812 26.62 1476.35 1020.648 18.45 18.46 9.025 2.90589 4.27024 26.64 1476.35 1020.661 18.75 18.76 9.007 2.90643 4.27324 26.66 1476.31 1020.679 19.05 19.06 8.975 2.91050 4.28326 26.72 1476.27 1020.736 19.35 19.36 8.956 2.91188 4.28776 26.75 1476.24 1020.762 19.65 19.66 8.936 2.91257 4.29126 26.77 1476.19 1020.784 19.95 19.96 8.909 2.91242 4.29441 26.79 1476.12 1020.803 20.25 20.26 8.901 2.91306 4.29642 26.80 1476.11 1020.816 20.55 20.56 8.888 2.91311 4.29818 26.81 1476.08 1020.827 20.85 20.86 8.879 2.91297 4.29907 26.82 1476.05 1020.833 21.15 21.16 8.871 2.91322 4.30043 26.83 1476.04 1020.842 21.45 21.46 8.861 2.91254 4.30079 26.83 1476.01 1020.846 21.75 21.76 8.848 2.91284 4.30285 26.84 1475.98 1020.859 22.05 22.06 8.839 2.91323 4.30455 26.85 1475.96 1020.870 22.35 22.36 8.819 2.91273 4.30636 26.86 1475.90 1020.882 22.65 22.66 8.811 2.91290 4.30760 26.87 1475.89 1020.890 22.95 22.96 8.810 2.91256 4.30729 26.87 1475.88 1020.890 23.25 23.26 8.807 2.91315 4.30851 26.87 1475.89 1020.898 23.55 23.56 8.803 2.91422 4.31057 26.89 1475.90 1020.910 23.85 23.86 8.798 2.91454 4.31175 26.89 1475.89 1020.918 24.15 24.16 8.795 2.91443 4.31192 26.90 1475.89 1020.921 24.45 24.45 8.792 2.91445 4.31228 26.90 1475.88 1020.924 24.75 24.75 8.791 2.91467 4.31285 26.90 1475.88 1020.928 25.05 25.05 8.788 2.91491 4.31350 26.91 1475.89 1020.933 25.35 25.35 8.788 2.91593 4.31509 26.92 1475.90 1020.943 25.65 25.65 8.786 2.91605 4.31548 26.92 1475.90 1020.947 25.95 25.95 8.785 2.91613 4.31571 26.92 1475.91 1020.949 26.25 26.25 8.783 2.91674 4.31690 26.93 1475.91 1020.957 26.55 26.55 8.781 2.91588 4.31585 26.92 1475.90 1020.953 26.85 26.85 8.781 2.91598 4.31604 26.92 1475.91 1020.955 27.15 27.15 8.781 2.91626 4.31647 26.92 1475.91 1020.959 27.45 27.45 8.780 2.91625 4.31656 26.92 1475.92 1020.961 27.75 27.75 8.781 2.91569 4.31559 26.92 1475.92 1020.957 28.05 28.05 8.781 2.91602 4.31612 26.92 1475.93 1020.961 28.35 28.35 8.781 2.91668 4.31708 26.93 1475.94 1020.967 28.65 28.65 8.775 2.91682 4.31798 26.93 1475.93 1020.974 28.95 28.95 8.774 2.91701 4.31842 26.94 1475.93 1020.977 29.25 29.25 8.775 2.91697 4.31825 26.93 1475.94 1020.978 29.55 29.55 8.776 2.91723 4.31851 26.94 1475.95 1020.980 29.85 29.85 8.778 2.91722 4.31824 26.93 1475.96 1020.980 30.15 30.15 8.780 2.91787 4.31892 26.94 1475.98 1020.985 30.45 30.45 8.782 2.91812 4.31904 26.94 1475.99 1020.987 30.75 30.74 8.782 2.91989 4.32160 26.96 1476.02 1021.002 31.05 31.04 8.784 2.91973 4.32117 26.96 1476.03 1021.001 31.35 31.34 8.785 2.91989 4.32130 26.96 1476.04 1021.003 31.65 31.64 8.790 2.92052 4.32160 26.96 1476.07 1021.005 31.95 31.94 8.796 2.92427 4.32637 26.99 1476.13 1021.032 32.25 32.24 8.803 2.92470 4.32614 26.99 1476.16 1021.032 32.55 32.54 8.815 2.92814 4.32965 27.02 1476.25 1021.051 32.85 32.84 8.825 2.93120 4.33286 27.04 1476.32 1021.069 33.15 33.14 8.831 2.93258 4.33419 27.05 1476.36 1021.077 33.45 33.44 8.840 2.93191 4.33199 27.04 1476.38 1021.066 33.75 33.74 8.849 2.93437 4.33450 27.05 1476.44 1021.081 34.05 34.04 8.859 2.94177 4.34410 27.12 1476.57 1021.133 34.35 34.34 8.885 2.94752 4.34925 27.16 1476.72 1021.161 34.65 34.64 8.923 2.95305 4.35257 27.19 1476.90 1021.178 34.95 34.94 8.949 2.95603 4.35360 27.20 1477.01 1021.184 35.25 35.24 8.958 2.95930 4.35733 27.22 1477.08 1021.205 35.55 35.54 8.963 2.95985 4.35751 27.23 1477.11 1021.207 35.85 35.84 8.972 2.96032 4.35699 27.22 1477.15 1021.205 36.15 36.14 8.977 2.96183 4.35853 27.23 1477.18 1021.214 36.45 36.44 8.985 2.96115 4.35658 27.22 1477.20 1021.205 36.75 36.73 8.990 2.96194 4.35705 27.22 1477.23 1021.208 37.05 37.03 8.994 2.96355 4.35890 27.24 1477.27 1021.219 37.35 37.33 9.004 2.96605 4.36137 27.26 1477.33 1021.233 37.65 37.63 9.013 2.96530 4.35904 27.24 1477.35 1021.221 37.95 37.93 9.011 2.96514 4.35913 27.24 1477.35 1021.223 38.25 38.23 9.013 2.96647 4.36084 27.25 1477.38 1021.234 38.55 38.53 9.020 2.96754 4.36153 27.26 1477.41 1021.238 38.85 38.83 9.026 2.96784 4.36118 27.26 1477.44 1021.238 39.15 39.13 9.036 2.97493 4.37032 27.32 1477.56 1021.288 39.45 39.43 9.066 2.97552 4.36734 27.30 1477.66 1021.271 39.88 39.86 9.078 2.97490 4.36482 27.29 1477.69 1021.259