*2026/01/16 10:37:54.84 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 20:06:48.000 END TIME : UTC 2025/05/28 20:07:09.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 107 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.94 2 Depth metres 0.15 31.81 3 Temperature 'deg C (ITS90)' 10.176 13.057 4 Conductivity S/m 2.94797 3.51292 5 Conductance:Specific S/m 3.87368 4.92603 6 Salinity PSS-78 24.27 31.36 7 Speed:Sound m/s 1486.51 1489.85 8 Density kg/m^3 1018.088 1024.196 $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 : 165 LATITUDE : 49 53.30540 N ! (deg min) LONGITUDE : 126 47.43310 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_200648 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 107 107 MERGEHDR 1.3 2026/01/16 10:35:45 107 107 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:43 107 107 CALIB 12.1 2026/01/16 10:37:18 107 107 CLEAN 5.3 2026/01/16 10:37:54 107 107 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 10:36:43 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 13.057 2.96540 3.89603 24.42 1487.89 1018.205 0.45 0.45 13.051 2.94797 3.87368 24.27 1487.69 1018.088 0.75 0.75 12.691 2.99380 3.97156 24.92 1487.23 1018.657 1.05 1.05 12.381 3.18497 4.26017 26.90 1488.51 1020.246 1.35 1.35 12.425 3.22973 4.31489 27.29 1489.12 1020.537 1.65 1.65 12.025 3.30482 4.46291 28.29 1488.93 1021.387 1.95 1.95 11.893 3.34392 4.53191 28.76 1489.04 1021.778 2.25 2.25 11.815 3.37961 4.58994 29.16 1489.25 1022.103 2.55 2.55 11.757 3.40962 4.63802 29.50 1489.45 1022.373 2.85 2.85 11.689 3.42674 4.67002 29.71 1489.48 1022.557 3.15 3.15 11.633 3.44368 4.70021 29.92 1489.54 1022.729 3.45 3.44 11.591 3.45028 4.71464 30.02 1489.51 1022.813 3.75 3.74 11.549 3.45876 4.73170 30.14 1489.51 1022.912 4.05 4.04 11.531 3.46879 4.74770 30.25 1489.58 1023.003 4.35 4.34 11.525 3.47195 4.75286 30.28 1489.61 1023.033 4.65 4.64 11.526 3.47641 4.75885 30.32 1489.67 1023.067 4.95 4.94 11.527 3.48007 4.76368 30.36 1489.72 1023.095 5.25 5.24 11.520 3.48279 4.76830 30.39 1489.74 1023.122 5.55 5.54 11.512 3.48828 4.77685 30.45 1489.79 1023.171 5.85 5.84 11.505 3.49066 4.78106 30.48 1489.80 1023.196 6.15 6.13 11.498 3.49165 4.78328 30.49 1489.80 1023.210 6.45 6.43 11.494 3.49315 4.78589 30.51 1489.81 1023.226 6.75 6.73 11.487 3.49621 4.79107 30.55 1489.83 1023.257 7.05 7.03 11.478 3.49831 4.79507 30.57 1489.84 1023.281 7.35 7.33 11.471 3.50029 4.79878 30.60 1489.85 1023.303 7.65 7.63 11.460 3.50116 4.80136 30.62 1489.84 1023.320 7.95 7.93 11.448 3.50261 4.80488 30.64 1489.83 1023.341 8.25 8.23 11.437 3.50344 4.80758 30.66 1489.82 1023.359 8.55 8.53 11.430 3.50304 4.80785 30.66 1489.80 1023.362 8.85 8.82 11.424 3.50330 4.80902 30.67 1489.79 1023.370 9.15 9.12 11.416 3.50314 4.80995 30.67 1489.77 1023.378 9.45 9.42 11.400 3.50284 4.81161 30.68 1489.74 1023.389 9.75 9.72 11.367 3.50333 4.81665 30.71 1489.66 1023.421 10.05 10.02 11.331 3.50362 4.82181 30.75 1489.58 1023.454 10.35 10.32 11.304 3.50461 4.82676 30.78 1489.53 1023.485 10.65 10.62 11.280 3.50546 4.83116 30.81 1489.48 1023.513 10.95 10.92 11.255 3.50715 4.83674 30.84 1489.45 1023.547 11.25 11.21 11.214 3.50797 4.84340 30.89 1489.36 1023.589 11.55 11.51 11.179 3.50881 4.84926 30.92 1489.28 1023.626 11.85 11.81 11.150 3.50982 4.85456 30.96 1489.23 1023.659 12.15 12.11 11.135 3.51018 4.85707 30.97 1489.20 1023.675 12.45 12.41 11.124 3.50985 4.85799 30.98 1489.17 1023.682 12.75 12.71 11.109 3.51005 4.86039 31.00 1489.14 1023.698 13.05 13.01 11.086 3.51108 4.86489 31.02 1489.10 1023.726 13.35 13.31 11.055 3.51084 4.86876 31.05 1489.02 1023.751 13.65 13.60 11.034 3.51173 4.87275 31.07 1488.99 1023.776 13.95 13.90 11.013 3.51233 4.87654 31.10 1488.94 1023.801 14.25 14.20 10.975 3.51246 4.88182 31.13 1488.86 1023.834 14.55 14.50 10.949 3.51212 4.88485 31.15 1488.79 1023.854 14.85 14.80 10.920 3.51219 4.88894 31.18 1488.72 1023.880 15.15 15.10 10.905 3.51255 4.89143 31.19 1488.69 1023.897 15.45 15.40 10.902 3.51265 4.89205 31.20 1488.69 1023.902 15.75 15.69 10.897 3.51260 4.89257 31.20 1488.69 1023.906 16.05 15.99 10.887 3.51292 4.89439 31.21 1488.67 1023.918 16.35 16.29 10.881 3.51218 4.89422 31.21 1488.65 1023.919 16.65 16.59 10.872 3.51253 4.89590 31.22 1488.64 1023.930 16.95 16.89 10.866 3.51239 4.89657 31.22 1488.62 1023.936 17.25 17.19 10.858 3.51215 4.89730 31.23 1488.60 1023.942 17.55 17.49 10.854 3.51268 4.89857 31.23 1488.61 1023.950 17.85 17.79 10.851 3.51211 4.89816 31.23 1488.60 1023.950 18.15 18.08 10.846 3.51120 4.89762 31.23 1488.58 1023.948 18.45 18.38 10.833 3.51111 4.89931 31.24 1488.55 1023.960 18.75 18.68 10.814 3.51160 4.90261 31.26 1488.51 1023.981 19.05 18.98 10.804 3.51075 4.90275 31.26 1488.48 1023.984 19.35 19.28 10.794 3.51014 4.90330 31.26 1488.45 1023.989 19.65 19.58 10.790 3.50933 4.90272 31.26 1488.44 1023.987 19.95 19.88 10.789 3.50988 4.90353 31.26 1488.45 1023.993 20.25 20.17 10.786 3.50971 4.90379 31.26 1488.44 1023.996 20.55 20.47 10.782 3.50864 4.90276 31.26 1488.42 1023.992 20.85 20.77 10.780 3.50924 4.90387 31.26 1488.43 1024.000 21.15 21.07 10.778 3.50960 4.90470 31.27 1488.43 1024.005 21.45 21.37 10.775 3.50919 4.90451 31.27 1488.43 1024.006 21.75 21.67 10.775 3.50939 4.90482 31.27 1488.43 1024.009 22.05 21.97 10.774 3.50953 4.90512 31.27 1488.44 1024.012 22.35 22.26 10.773 3.50897 4.90447 31.27 1488.43 1024.010 22.65 22.56 10.772 3.50902 4.90465 31.27 1488.44 1024.012 22.95 22.86 10.768 3.50886 4.90495 31.27 1488.43 1024.015 23.25 23.16 10.757 3.50815 4.90550 31.27 1488.40 1024.021 23.55 23.46 10.738 3.50703 4.90661 31.28 1488.34 1024.029 23.85 23.76 10.713 3.50780 4.91108 31.30 1488.29 1024.057 24.15 24.06 10.669 3.50523 4.91350 31.32 1488.16 1024.075 24.45 24.36 10.605 3.49789 4.91214 31.30 1487.91 1024.074 24.75 24.65 10.570 3.49201 4.90862 31.27 1487.75 1024.059 25.05 24.95 10.531 3.48816 4.90858 31.26 1487.61 1024.063 25.35 25.25 10.472 3.48589 4.91360 31.29 1487.44 1024.096 25.65 25.55 10.436 3.48460 4.91679 31.31 1487.34 1024.118 25.95 25.85 10.411 3.48419 4.91964 31.33 1487.27 1024.136 26.25 26.15 10.389 3.48319 4.92134 31.34 1487.21 1024.149 26.55 26.45 10.371 3.48320 4.92378 31.35 1487.17 1024.165 26.85 26.74 10.363 3.48193 4.92312 31.35 1487.14 1024.163 27.15 27.04 10.355 3.48238 4.92493 31.36 1487.13 1024.175 27.45 27.34 10.347 3.48209 4.92557 31.36 1487.11 1024.180 27.75 27.64 10.342 3.48138 4.92528 31.36 1487.09 1024.180 28.05 27.94 10.339 3.48116 4.92534 31.36 1487.09 1024.182 28.35 28.24 10.337 3.48140 4.92603 31.36 1487.09 1024.187 28.65 28.54 10.336 3.48078 4.92524 31.36 1487.09 1024.184 28.95 28.83 10.339 3.48096 4.92509 31.36 1487.10 1024.184 29.25 29.13 10.340 3.48066 4.92448 31.35 1487.10 1024.182 29.55 29.43 10.336 3.47983 4.92391 31.35 1487.09 1024.181 29.85 29.73 10.330 3.48016 4.92528 31.36 1487.08 1024.190 30.15 30.03 10.326 3.47950 4.92481 31.35 1487.07 1024.189 30.45 30.33 10.323 3.47928 4.92501 31.35 1487.06 1024.191 30.75 30.63 10.320 3.47805 4.92356 31.34 1487.05 1024.185 31.05 30.92 10.310 3.47605 4.92212 31.33 1487.00 1024.179 31.35 31.22 10.295 3.47035 4.91627 31.29 1486.90 1024.149 31.65 31.52 10.198 3.46502 4.92214 31.32 1486.59 1024.190 31.94 31.81 10.176 3.46331 4.92289 31.32 1486.51 1024.196