*2026/01/16 10:37:54.72 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 16:49:38.000 END TIME : UTC 2025/05/28 16:50:03.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.78 2 Depth metres 0.15 37.62 3 Temperature 'deg C (ITS90)' 9.824 12.016 4 Conductivity S/m 2.92659 3.50454 5 Conductance:Specific S/m 3.95312 4.94388 6 Salinity PSS-78 24.74 31.42 7 Speed:Sound m/s 1484.66 1489.2 8 Density kg/m^3 1018.635 1024.356 $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 : 162 LATITUDE : 49 51.92660 N ! (deg min) LONGITUDE : 126 42.68200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_164938 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 126 126 MERGEHDR 1.3 2026/01/16 10:35:45 126 126 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:42 126 126 CALIB 12.1 2026/01/16 10:37:18 126 126 CLEAN 5.3 2026/01/16 10:37:54 126 126 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:42 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 12.016 2.92659 3.95312 24.74 1484.66 1018.635 0.45 0.45 12.000 3.06818 4.14618 26.08 1486.19 1019.672 0.75 0.75 11.981 3.11669 4.21386 26.55 1486.69 1020.040 1.05 1.05 11.973 3.12409 4.22485 26.62 1486.75 1020.101 1.35 1.35 11.941 3.14816 4.26108 26.87 1486.94 1020.302 1.65 1.65 11.888 3.16024 4.28360 27.02 1486.94 1020.430 1.95 1.95 11.799 3.20405 4.35343 27.50 1487.21 1020.818 2.25 2.25 11.671 3.26631 4.45356 28.19 1487.59 1021.376 2.55 2.55 11.615 3.29978 4.50600 28.55 1487.83 1021.668 2.85 2.85 11.567 3.34175 4.56930 28.99 1488.19 1022.019 3.15 3.15 11.513 3.38623 4.63706 29.46 1488.57 1022.395 3.45 3.45 11.452 3.39744 4.66012 29.62 1488.55 1022.529 3.75 3.74 11.378 3.40209 4.67597 29.72 1488.42 1022.624 4.05 4.04 11.338 3.40926 4.69105 29.83 1488.40 1022.711 4.35 4.34 11.320 3.41177 4.69680 29.87 1488.39 1022.746 4.65 4.64 11.299 3.41895 4.70944 29.95 1488.43 1022.818 4.95 4.94 11.280 3.42973 4.72674 30.07 1488.51 1022.916 5.25 5.24 11.270 3.44389 4.74763 30.22 1488.65 1023.033 5.55 5.54 11.268 3.46255 4.77355 30.40 1488.87 1023.176 5.85 5.84 11.267 3.47009 4.78403 30.48 1488.96 1023.235 6.15 6.14 11.265 3.47621 4.79275 30.54 1489.03 1023.284 6.45 6.43 11.256 3.47935 4.79825 30.57 1489.05 1023.317 6.75 6.73 11.231 3.48868 4.81451 30.69 1489.10 1023.410 7.05 7.03 11.209 3.49760 4.82977 30.79 1489.16 1023.497 7.35 7.33 11.195 3.50419 4.84074 30.87 1489.20 1023.560 7.65 7.63 11.175 3.50454 4.84385 30.89 1489.16 1023.580 7.95 7.93 11.155 3.50438 4.84628 30.90 1489.11 1023.596 8.25 8.23 11.141 3.50372 4.84733 30.91 1489.07 1023.604 8.55 8.53 11.131 3.50375 4.84873 30.92 1489.05 1023.614 8.85 8.82 11.122 3.50341 4.84938 30.92 1489.03 1023.620 9.15 9.12 11.120 3.50431 4.85096 30.93 1489.04 1023.630 9.45 9.42 11.117 3.50401 4.85093 30.93 1489.04 1023.632 9.75 9.72 11.116 3.50343 4.85025 30.93 1489.03 1023.629 10.05 10.02 11.112 3.50361 4.85097 30.93 1489.03 1023.635 10.35 10.32 11.111 3.50314 4.85053 30.93 1489.03 1023.634 10.65 10.62 11.107 3.50284 4.85063 30.93 1489.02 1023.636 10.95 10.92 11.107 3.50236 4.85003 30.92 1489.02 1023.634 11.25 11.21 11.105 3.50247 4.85037 30.92 1489.02 1023.637 11.55 11.51 11.103 3.50233 4.85048 30.92 1489.02 1023.639 11.85 11.81 11.101 3.50226 4.85065 30.93 1489.01 1023.641 12.15 12.11 11.099 3.50262 4.85138 30.93 1489.02 1023.647 12.45 12.41 11.094 3.50188 4.85101 30.93 1489.00 1023.647 12.75 12.71 11.084 3.50168 4.85213 30.93 1488.98 1023.655 13.05 13.01 11.072 3.50119 4.85313 30.94 1488.95 1023.663 13.35 13.31 11.049 3.50167 4.85681 30.96 1488.90 1023.686 13.65 13.60 11.036 3.50217 4.85922 30.98 1488.88 1023.702 13.95 13.90 11.024 3.50278 4.86169 30.99 1488.86 1023.718 14.25 14.20 11.009 3.50296 4.86395 31.01 1488.83 1023.733 14.55 14.50 10.999 3.50317 4.86571 31.02 1488.81 1023.745 14.85 14.80 10.984 3.50357 4.86824 31.04 1488.78 1023.761 15.15 15.10 10.966 3.50270 4.86951 31.04 1488.73 1023.771 15.45 15.40 10.950 3.50258 4.87146 31.05 1488.69 1023.784 15.75 15.70 10.928 3.50234 4.87406 31.07 1488.64 1023.802 16.05 15.99 10.893 3.50127 4.87738 31.09 1488.54 1023.824 16.35 16.29 10.846 3.49761 4.87862 31.09 1488.39 1023.836 16.65 16.59 10.798 3.49497 4.88151 31.11 1488.24 1023.857 16.95 16.89 10.765 3.49277 4.88297 31.11 1488.13 1023.869 17.25 17.19 10.738 3.49173 4.88518 31.13 1488.06 1023.885 17.55 17.49 10.716 3.49156 4.88793 31.14 1488.01 1023.903 17.85 17.79 10.699 3.49076 4.88921 31.15 1487.96 1023.913 18.15 18.08 10.680 3.49097 4.89208 31.17 1487.92 1023.931 18.45 18.38 10.666 3.49139 4.89460 31.18 1487.89 1023.948 18.75 18.68 10.647 3.49123 4.89697 31.20 1487.84 1023.963 19.05 18.98 10.619 3.48846 4.89697 31.20 1487.74 1023.967 19.35 19.28 10.586 3.48646 4.89870 31.20 1487.64 1023.980 19.65 19.58 10.542 3.48164 4.89792 31.19 1487.48 1023.981 19.95 19.88 10.456 3.47152 4.89550 31.17 1487.14 1023.975 20.25 20.17 10.343 3.46695 4.90471 31.22 1486.80 1024.035 20.55 20.47 10.282 3.46358 4.90844 31.24 1486.61 1024.061 20.85 20.77 10.247 3.46202 4.91103 31.25 1486.51 1024.079 21.15 21.07 10.232 3.46073 4.91141 31.25 1486.45 1024.084 21.45 21.37 10.230 3.46127 4.91245 31.26 1486.46 1024.091 21.75 21.67 10.222 3.46163 4.91399 31.27 1486.45 1024.101 22.05 21.97 10.220 3.46229 4.91529 31.28 1486.46 1024.110 22.35 22.27 10.222 3.46178 4.91418 31.27 1486.46 1024.105 22.65 22.56 10.220 3.46030 4.91240 31.26 1486.44 1024.096 22.95 22.86 10.205 3.45964 4.91353 31.26 1486.40 1024.105 23.25 23.16 10.192 3.45988 4.91576 31.28 1486.38 1024.119 23.55 23.46 10.185 3.46028 4.91721 31.28 1486.37 1024.129 23.85 23.76 10.186 3.46137 4.91871 31.29 1486.39 1024.139 24.15 24.06 10.182 3.46036 4.91785 31.29 1486.37 1024.135 24.45 24.36 10.176 3.46009 4.91820 31.29 1486.36 1024.139 24.75 24.65 10.179 3.45994 4.91768 31.29 1486.37 1024.137 25.05 24.95 10.182 3.45945 4.91648 31.28 1486.38 1024.132 25.35 25.25 10.164 3.45831 4.91747 31.28 1486.32 1024.140 25.65 25.55 10.120 3.45499 4.91881 31.29 1486.17 1024.151 25.95 25.85 10.049 3.45267 4.92552 31.32 1485.96 1024.194 26.25 26.15 10.004 3.44982 4.92776 31.33 1485.82 1024.211 26.55 26.45 9.978 3.44834 4.92935 31.34 1485.74 1024.222 26.85 26.74 9.953 3.44717 4.93117 31.35 1485.66 1024.235 27.15 27.04 9.929 3.44523 4.93182 31.35 1485.58 1024.242 27.45 27.34 9.894 3.44451 4.93562 31.38 1485.49 1024.266 27.75 27.64 9.868 3.44416 4.93878 31.39 1485.42 1024.286 28.05 27.94 9.851 3.44336 4.94010 31.40 1485.37 1024.296 28.35 28.24 9.845 3.44444 4.94250 31.42 1485.38 1024.311 28.65 28.54 9.848 3.44496 4.94280 31.42 1485.40 1024.313 28.95 28.83 9.856 3.44609 4.94334 31.42 1485.43 1024.317 29.25 29.13 9.861 3.44529 4.94146 31.41 1485.44 1024.308 29.55 29.43 9.863 3.44545 4.94142 31.41 1485.45 1024.309 29.85 29.73 9.864 3.44457 4.94003 31.40 1485.45 1024.302 30.15 30.03 9.865 3.44599 4.94196 31.42 1485.47 1024.314 30.45 30.33 9.865 3.44556 4.94128 31.41 1485.48 1024.312 30.75 30.63 9.867 3.44499 4.94012 31.40 1485.48 1024.306 31.05 30.92 9.868 3.44607 4.94154 31.41 1485.50 1024.315 31.35 31.22 9.885 3.44660 4.93994 31.40 1485.55 1024.307 31.65 31.52 9.906 3.44704 4.93764 31.39 1485.62 1024.294 31.95 31.82 9.912 3.44628 4.93570 31.38 1485.63 1024.284 32.25 32.12 9.905 3.44653 4.93695 31.38 1485.62 1024.293 32.55 32.42 9.900 3.44644 4.93765 31.39 1485.61 1024.298 32.85 32.71 9.894 3.44461 4.93586 31.38 1485.58 1024.290 33.15 33.01 9.868 3.44448 4.93925 31.40 1485.51 1024.312 33.45 33.31 9.853 3.44422 4.94112 31.41 1485.47 1024.324 33.75 33.61 9.847 3.44389 4.94149 31.41 1485.46 1024.328 34.05 33.91 9.832 3.44413 4.94388 31.42 1485.43 1024.343 34.35 34.21 9.836 3.44447 4.94381 31.42 1485.45 1024.344 34.65 34.51 9.849 3.44501 4.94272 31.42 1485.49 1024.338 34.95 34.80 9.856 3.44424 4.94070 31.40 1485.51 1024.328 35.25 35.10 9.856 3.44486 4.94160 31.41 1485.52 1024.334 35.55 35.40 9.849 3.44340 4.94051 31.40 1485.49 1024.330 35.85 35.70 9.848 3.44372 4.94111 31.41 1485.49 1024.335 36.15 36.00 9.859 3.44384 4.93973 31.40 1485.53 1024.328 36.45 36.30 9.845 3.44275 4.94015 31.40 1485.48 1024.332 36.75 36.60 9.829 3.44311 4.94282 31.41 1485.45 1024.349 37.05 36.89 9.824 3.44299 4.94340 31.42 1485.44 1024.354 37.35 37.19 9.825 3.44304 4.94338 31.42 1485.45 1024.355 37.78 37.62 9.826 3.44313 4.94332 31.42 1485.46 1024.356