*2026/01/16 09:47:04.65 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 00:09:03.000 END TIME : UTC 2023/12/01 00:09:24.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 110 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.83 2 Depth metres 0.15 32.73 3 Temperature 'deg C (ITS90)' 11.023 11.921 4 Conductivity S/m 3.26057 3.51927 5 Conductance:Specific S/m 4.52535 4.76614 6 Salinity PSS-78 28.63 30.4 7 Speed:Sound m/s 1485.8 1491.6 8 Density kg/m^3 1021.819 1023.185 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 90 LATITUDE : 49 17.32640 N ! (deg min) LONGITUDE : 126 1.78810 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_000903 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 110 110 MERGEHDR 1.3 2026/01/15 13:41:48 110 110 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 110 110 CALIB 12.1 2026/01/16 09:46:08 110 110 CLEAN 5.3 2026/01/16 09:47:04 110 110 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:08 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 09:47:01 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 11.026 3.26057 4.52535 28.63 1485.80 1021.819 0.45 0.45 11.023 3.26156 4.52706 28.64 1485.81 1021.830 0.75 0.75 11.049 3.26344 4.52634 28.64 1485.90 1021.825 1.05 1.05 11.068 3.26660 4.52844 28.66 1485.99 1021.836 1.35 1.35 11.087 3.26963 4.53023 28.67 1486.08 1021.845 1.65 1.65 11.104 3.27283 4.53250 28.69 1486.17 1021.857 1.95 1.95 11.105 3.27544 4.53602 28.71 1486.21 1021.878 2.25 2.24 11.118 3.28026 4.54103 28.75 1486.30 1021.905 2.55 2.54 11.149 3.28438 4.54289 28.77 1486.44 1021.914 2.85 2.84 11.179 3.29036 4.54739 28.80 1486.59 1021.937 3.15 3.14 11.209 3.29478 4.54965 28.82 1486.73 1021.947 3.45 3.44 11.227 3.29822 4.55220 28.84 1486.82 1021.961 3.75 3.74 11.236 3.29955 4.55288 28.85 1486.86 1021.965 4.05 4.04 11.245 3.30172 4.55470 28.86 1486.91 1021.975 4.35 4.34 11.255 3.30491 4.55790 28.88 1486.98 1021.993 4.65 4.64 11.295 3.31124 4.56152 28.91 1487.16 1022.010 4.95 4.94 11.322 3.31915 4.56907 28.97 1487.33 1022.050 5.25 5.24 11.344 3.32482 4.57415 29.00 1487.46 1022.077 5.55 5.54 11.376 3.32856 4.57524 29.02 1487.59 1022.081 5.85 5.84 11.396 3.33012 4.57480 29.01 1487.66 1022.078 6.15 6.13 11.414 3.33054 4.57319 29.00 1487.72 1022.069 6.45 6.43 11.431 3.33667 4.57942 29.05 1487.84 1022.103 6.75 6.73 11.443 3.33771 4.57930 29.05 1487.89 1022.102 7.05 7.03 11.462 3.34529 4.58739 29.11 1488.03 1022.146 7.35 7.33 11.506 3.35115 4.58987 29.13 1488.21 1022.156 7.65 7.63 11.522 3.35322 4.59067 29.14 1488.28 1022.160 7.95 7.93 11.529 3.35509 4.59238 29.15 1488.33 1022.170 8.25 8.23 11.532 3.35696 4.59452 29.17 1488.36 1022.183 8.55 8.53 11.547 3.35809 4.59420 29.16 1488.42 1022.181 8.85 8.83 11.555 3.35861 4.59394 29.16 1488.45 1022.180 9.15 9.13 11.561 3.35956 4.59446 29.17 1488.48 1022.183 9.45 9.43 11.560 3.36004 4.59530 29.17 1488.49 1022.189 9.75 9.72 11.569 3.36088 4.59521 29.17 1488.53 1022.189 10.05 10.02 11.573 3.36077 4.59458 29.17 1488.54 1022.187 10.35 10.32 11.597 3.36246 4.59395 29.17 1488.63 1022.182 10.65 10.62 11.613 3.36943 4.60142 29.22 1488.75 1022.222 10.95 10.92 11.611 3.37164 4.60467 29.24 1488.78 1022.242 11.25 11.22 11.624 3.37608 4.60907 29.28 1488.87 1022.266 11.55 11.52 11.640 3.38005 4.61249 29.30 1488.96 1022.284 11.85 11.82 11.646 3.38599 4.61988 29.35 1489.05 1022.325 12.15 12.12 11.649 3.38743 4.62148 29.36 1489.07 1022.335 12.45 12.42 11.671 3.39247 4.62551 29.40 1489.19 1022.356 12.75 12.72 11.678 3.39453 4.62741 29.41 1489.24 1022.367 13.05 13.02 11.672 3.39664 4.63111 29.43 1489.25 1022.389 13.35 13.31 11.672 3.39705 4.63162 29.44 1489.26 1022.393 13.65 13.61 11.668 3.39732 4.63250 29.44 1489.26 1022.399 13.95 13.91 11.661 3.39752 4.63370 29.45 1489.25 1022.408 14.25 14.21 11.665 3.39911 4.63537 29.46 1489.28 1022.418 14.55 14.51 11.672 3.40021 4.63593 29.47 1489.32 1022.421 14.85 14.81 11.679 3.40297 4.63887 29.49 1489.37 1022.438 15.15 15.11 11.693 3.40655 4.64200 29.51 1489.45 1022.455 15.45 15.41 11.737 3.41360 4.64602 29.54 1489.65 1022.474 15.75 15.71 11.767 3.42363 4.65580 29.62 1489.85 1022.525 16.05 16.01 11.797 3.43538 4.66804 29.71 1490.06 1022.591 16.35 16.31 11.827 3.45638 4.69277 29.88 1490.38 1022.724 16.65 16.60 11.883 3.47844 4.71553 30.05 1490.78 1022.844 16.95 16.90 11.903 3.47815 4.71261 30.03 1490.83 1022.827 17.25 17.20 11.884 3.47784 4.71462 30.04 1490.79 1022.842 17.55 17.50 11.865 3.47591 4.71433 30.04 1490.72 1022.843 17.85 17.80 11.865 3.47532 4.71353 30.03 1490.72 1022.840 18.15 18.10 11.867 3.47472 4.71249 30.03 1490.72 1022.836 18.45 18.40 11.870 3.47795 4.71647 30.05 1490.77 1022.858 18.75 18.70 11.864 3.48335 4.72453 30.11 1490.83 1022.904 19.05 19.00 11.842 3.48420 4.72855 30.14 1490.78 1022.930 19.35 19.30 11.850 3.48577 4.72969 30.15 1490.83 1022.937 19.65 19.59 11.868 3.48900 4.73169 30.16 1490.92 1022.947 19.95 19.89 11.868 3.48700 4.72901 30.14 1490.90 1022.934 20.25 20.19 11.849 3.48801 4.73280 30.17 1490.87 1022.958 20.55 20.49 11.842 3.48774 4.73341 30.17 1490.85 1022.963 20.85 20.79 11.841 3.48789 4.73372 30.17 1490.85 1022.966 21.15 21.09 11.839 3.48817 4.73436 30.18 1490.86 1022.971 21.45 21.39 11.839 3.48811 4.73429 30.18 1490.86 1022.972 21.75 21.69 11.842 3.48952 4.73579 30.19 1490.89 1022.981 22.05 21.99 11.845 3.49087 4.73724 30.20 1490.92 1022.990 22.35 22.28 11.851 3.49282 4.73917 30.21 1490.96 1023.001 22.65 22.58 11.855 3.49493 4.74143 30.23 1491.00 1023.014 22.95 22.88 11.862 3.49652 4.74274 30.24 1491.04 1023.022 23.25 23.18 11.858 3.49765 4.74483 30.25 1491.04 1023.035 23.55 23.48 11.856 3.49965 4.74774 30.27 1491.07 1023.053 23.85 23.78 11.859 3.49914 4.74666 30.26 1491.07 1023.048 24.15 24.08 11.860 3.49989 4.74750 30.27 1491.09 1023.054 24.45 24.38 11.855 3.49961 4.74785 30.27 1491.08 1023.057 24.75 24.68 11.857 3.49942 4.74730 30.27 1491.09 1023.055 25.05 24.97 11.852 3.49897 4.74731 30.27 1491.07 1023.057 25.35 25.27 11.852 3.50039 4.74928 30.28 1491.10 1023.069 25.65 25.57 11.851 3.50346 4.75348 30.31 1491.13 1023.094 25.95 25.87 11.866 3.50430 4.75269 30.31 1491.19 1023.089 26.25 26.17 11.875 3.50557 4.75337 30.31 1491.23 1023.093 26.55 26.47 11.877 3.50575 4.75336 30.31 1491.24 1023.094 26.85 26.77 11.878 3.50618 4.75370 30.31 1491.25 1023.097 27.15 27.07 11.878 3.50699 4.75488 30.32 1491.26 1023.105 27.45 27.37 11.876 3.50752 4.75581 30.33 1491.27 1023.111 27.75 27.67 11.873 3.50760 4.75628 30.33 1491.27 1023.116 28.05 27.96 11.879 3.50902 4.75750 30.34 1491.30 1023.123 28.35 28.26 11.881 3.50924 4.75756 30.34 1491.32 1023.124 28.65 28.56 11.882 3.51050 4.75912 30.35 1491.34 1023.134 28.95 28.86 11.881 3.51129 4.76024 30.36 1491.35 1023.141 29.25 29.16 11.882 3.51180 4.76084 30.36 1491.36 1023.146 29.55 29.46 11.888 3.51293 4.76158 30.37 1491.40 1023.151 29.85 29.76 11.893 3.51341 4.76166 30.37 1491.42 1023.152 30.15 30.06 11.888 3.51544 4.76506 30.39 1491.43 1023.172 30.45 30.36 11.895 3.51421 4.76242 30.38 1491.44 1023.158 30.75 30.65 11.906 3.51582 4.76327 30.38 1491.49 1023.163 31.05 30.95 11.903 3.51594 4.76372 30.39 1491.49 1023.167 31.35 31.25 11.911 3.51725 4.76447 30.39 1491.53 1023.172 31.65 31.55 11.913 3.51773 4.76482 30.40 1491.55 1023.175 31.95 31.85 11.915 3.51819 4.76525 30.40 1491.56 1023.178 32.25 32.15 11.917 3.51826 4.76510 30.40 1491.57 1023.178 32.55 32.45 11.920 3.51927 4.76614 30.40 1491.60 1023.185 32.83 32.73 11.921 3.51893 4.76551 30.40 1491.60 1023.183