*2026/01/16 09:57:52.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 01:31:39.000 END TIME : UTC 2024/07/10 01:32:05.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 132 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.52 2 Depth metres 0.15 39.33 3 Temperature 'deg C (ITS90)' 9.442 15.822 4 Conductivity S/m 3.49888 3.69234 5 Conductance:Specific S/m 4.51774 5.08269 6 Salinity PSS-78 28.94 32.35 7 Speed:Sound m/s 1485.14 1502.3 8 Density kg/m^3 1021.166 1025.149 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 172 LATITUDE : 49 46.95430 N ! (deg min) LONGITUDE : 126 38.48230 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_013139 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 132 132 MERGEHDR 1.3 2026/01/16 09:53:56 132 132 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 132 132 CALIB 12.1 2026/01/16 09:56:52 132 132 CLEAN 5.3 2026/01/16 09:57:52 132 132 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 09:57:46 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 15.822 3.69234 4.52243 28.98 1502.30 1021.166 0.45 0.45 15.630 3.67113 4.51774 28.94 1501.65 1021.175 0.75 0.75 15.255 3.66186 4.54827 29.13 1500.69 1021.406 1.05 1.05 15.010 3.65676 4.56975 29.27 1500.06 1021.564 1.35 1.35 15.020 3.65735 4.56942 29.27 1500.10 1021.562 1.65 1.65 15.020 3.65732 4.56939 29.27 1500.10 1021.563 1.95 1.95 15.012 3.65729 4.57030 29.28 1500.09 1021.570 2.25 2.25 14.956 3.65551 4.57438 29.30 1499.94 1021.603 2.55 2.54 14.857 3.65395 4.58386 29.36 1499.70 1021.672 2.85 2.84 14.596 3.64064 4.59721 29.44 1498.95 1021.786 3.15 3.14 14.335 3.62809 4.61173 29.52 1498.20 1021.907 3.45 3.44 14.044 3.62131 4.63746 29.69 1497.44 1022.091 3.75 3.74 13.809 3.61029 4.65141 29.77 1496.77 1022.202 4.05 4.04 13.631 3.60664 4.66805 29.87 1496.30 1022.319 4.35 4.34 13.429 3.59936 4.68315 29.96 1495.74 1022.431 4.65 4.64 12.937 3.58598 4.72624 30.23 1494.41 1022.732 4.95 4.94 12.496 3.57134 4.76236 30.44 1493.17 1022.984 5.25 5.24 12.181 3.55885 4.78578 30.58 1492.26 1023.150 5.55 5.54 11.935 3.55021 4.80602 30.70 1491.56 1023.289 5.85 5.83 11.635 3.54470 4.83782 30.89 1490.75 1023.496 6.15 6.13 11.385 3.53901 4.86326 31.05 1490.07 1023.661 6.45 6.43 11.163 3.53721 4.89071 31.22 1489.49 1023.834 6.75 6.73 11.078 3.53650 4.90124 31.28 1489.28 1023.901 7.05 7.03 11.006 3.53580 4.91006 31.34 1489.09 1023.957 7.35 7.33 10.958 3.53507 4.91555 31.37 1488.97 1023.992 7.65 7.63 10.922 3.53422 4.91927 31.39 1488.88 1024.017 7.95 7.93 10.877 3.53318 4.92401 31.42 1488.75 1024.048 8.25 8.22 10.845 3.53329 4.92863 31.45 1488.68 1024.078 8.55 8.52 10.814 3.53193 4.93090 31.46 1488.59 1024.094 8.85 8.82 10.776 3.53215 4.93646 31.50 1488.50 1024.129 9.15 9.12 10.733 3.53019 4.93973 31.52 1488.37 1024.152 9.45 9.42 10.681 3.52882 4.94489 31.55 1488.23 1024.186 9.75 9.72 10.636 3.52712 4.94887 31.57 1488.10 1024.212 10.05 10.02 10.573 3.52577 4.95575 31.61 1487.93 1024.256 10.35 10.31 10.507 3.52438 4.96292 31.65 1487.75 1024.302 10.65 10.61 10.479 3.52422 4.96660 31.68 1487.69 1024.326 10.95 10.91 10.459 3.52391 4.96906 31.69 1487.64 1024.342 11.25 11.21 10.446 3.52265 4.96910 31.69 1487.59 1024.345 11.55 11.51 10.436 3.52277 4.97056 31.70 1487.58 1024.355 11.85 11.81 10.429 3.52250 4.97116 31.70 1487.56 1024.360 12.15 12.10 10.418 3.52259 4.97288 31.71 1487.54 1024.371 12.45 12.40 10.411 3.52392 4.97578 31.73 1487.54 1024.389 12.75 12.70 10.393 3.52360 4.97778 31.74 1487.50 1024.403 13.05 13.00 10.384 3.52304 4.97833 31.75 1487.47 1024.408 13.35 13.30 10.348 3.52090 4.98028 31.75 1487.36 1024.422 13.65 13.60 10.296 3.51960 4.98582 31.79 1487.22 1024.458 13.95 13.90 10.274 3.51874 4.98768 31.80 1487.15 1024.471 14.25 14.19 10.251 3.51836 4.99046 31.81 1487.10 1024.489 14.55 14.49 10.229 3.51730 4.99208 31.82 1487.03 1024.501 14.85 14.79 10.209 3.51681 4.99418 31.84 1486.98 1024.515 15.15 15.09 10.188 3.51677 4.99706 31.85 1486.93 1024.534 15.45 15.39 10.175 3.51642 4.99850 31.86 1486.90 1024.544 15.75 15.69 10.142 3.51548 5.00182 31.88 1486.81 1024.565 16.05 15.99 10.119 3.51492 5.00427 31.89 1486.75 1024.582 16.35 16.28 10.071 3.51365 5.00932 31.92 1486.61 1024.614 16.65 16.58 10.055 3.51310 5.01085 31.93 1486.57 1024.625 16.95 16.88 10.025 3.51259 5.01438 31.95 1486.49 1024.647 17.25 17.18 10.000 3.51232 5.01766 31.97 1486.43 1024.668 17.55 17.48 9.969 3.51101 5.02018 31.99 1486.34 1024.686 17.85 17.78 9.953 3.51047 5.02169 32.00 1486.30 1024.696 18.15 18.07 9.935 3.50941 5.02277 32.00 1486.24 1024.705 18.45 18.37 9.909 3.50927 5.02625 32.02 1486.18 1024.727 18.75 18.67 9.891 3.51052 5.03075 32.05 1486.15 1024.754 19.05 18.97 9.878 3.50981 5.03159 32.06 1486.12 1024.761 19.35 19.27 9.871 3.50916 5.03164 32.05 1486.10 1024.763 19.65 19.57 9.849 3.50807 5.03331 32.06 1486.03 1024.774 19.95 19.86 9.826 3.50810 5.03655 32.08 1485.98 1024.795 20.25 20.16 9.796 3.50715 5.03961 32.10 1485.90 1024.815 20.55 20.46 9.774 3.50663 5.04209 32.12 1485.84 1024.831 20.85 20.76 9.744 3.50586 5.04524 32.13 1485.76 1024.851 21.15 21.06 9.739 3.50577 5.04591 32.14 1485.75 1024.857 21.45 21.36 9.729 3.50537 5.04669 32.14 1485.72 1024.863 21.75 21.66 9.730 3.50579 5.04726 32.15 1485.73 1024.867 22.05 21.95 9.725 3.50536 5.04732 32.14 1485.72 1024.869 22.35 22.25 9.718 3.50526 5.04822 32.15 1485.71 1024.876 22.65 22.55 9.715 3.50505 5.04839 32.15 1485.70 1024.878 22.95 22.85 9.711 3.50457 5.04821 32.15 1485.69 1024.879 23.25 23.15 9.701 3.50413 5.04899 32.15 1485.66 1024.885 23.55 23.45 9.682 3.50418 5.05182 32.17 1485.62 1024.903 23.85 23.74 9.661 3.50363 5.05415 32.18 1485.56 1024.918 24.15 24.04 9.640 3.50436 5.05821 32.21 1485.53 1024.943 24.45 24.34 9.640 3.50469 5.05871 32.21 1485.53 1024.947 24.75 24.64 9.634 3.50415 5.05887 32.21 1485.52 1024.949 25.05 24.94 9.622 3.50330 5.05938 32.22 1485.48 1024.954 25.35 25.24 9.608 3.50246 5.06016 32.22 1485.44 1024.960 25.65 25.53 9.591 3.50231 5.06250 32.23 1485.40 1024.976 25.95 25.83 9.583 3.50251 5.06387 32.24 1485.39 1024.985 26.25 26.13 9.574 3.50239 5.06507 32.25 1485.36 1024.993 26.55 26.43 9.580 3.50373 5.06613 32.26 1485.40 1025.000 26.85 26.73 9.583 3.50237 5.06364 32.24 1485.40 1024.987 27.15 27.03 9.577 3.50188 5.06381 32.24 1485.38 1024.990 27.45 27.32 9.565 3.50215 5.06605 32.25 1485.36 1025.004 27.75 27.62 9.564 3.50209 5.06602 32.25 1485.36 1025.005 28.05 27.92 9.563 3.50193 5.06604 32.25 1485.36 1025.007 28.35 28.22 9.570 3.50341 5.06705 32.26 1485.40 1025.013 28.65 28.52 9.572 3.50212 5.06501 32.25 1485.39 1025.003 28.95 28.82 9.569 3.50274 5.06636 32.26 1485.40 1025.012 29.25 29.11 9.574 3.50333 5.06643 32.26 1485.42 1025.013 29.55 29.41 9.582 3.50252 5.06403 32.24 1485.44 1025.001 29.85 29.71 9.566 3.50216 5.06594 32.25 1485.40 1025.014 30.15 30.01 9.553 3.50155 5.06696 32.26 1485.36 1025.021 30.45 30.31 9.545 3.50125 5.06772 32.26 1485.34 1025.027 30.75 30.61 9.518 3.50166 5.07229 32.29 1485.28 1025.055 31.05 30.90 9.518 3.50174 5.07238 32.29 1485.29 1025.057 31.35 31.20 9.512 3.50218 5.07392 32.30 1485.28 1025.067 31.65 31.50 9.511 3.50071 5.07180 32.28 1485.27 1025.056 31.95 31.80 9.498 3.50038 5.07325 32.29 1485.24 1025.066 32.25 32.10 9.500 3.50020 5.07282 32.29 1485.24 1025.065 32.55 32.40 9.487 3.50075 5.07542 32.31 1485.22 1025.081 32.85 32.69 9.475 3.50030 5.07655 32.31 1485.19 1025.090 33.15 32.99 9.470 3.49979 5.07657 32.31 1485.18 1025.091 33.45 33.29 9.460 3.50010 5.07843 32.32 1485.16 1025.103 33.75 33.59 9.460 3.49993 5.07829 32.32 1485.16 1025.104 34.05 33.89 9.457 3.49991 5.07869 32.32 1485.16 1025.107 34.35 34.19 9.466 3.50046 5.07810 32.32 1485.19 1025.105 34.65 34.48 9.454 3.49960 5.07867 32.32 1485.16 1025.110 34.95 34.78 9.446 3.49995 5.08030 32.33 1485.15 1025.121 35.25 35.08 9.448 3.49994 5.08000 32.33 1485.15 1025.120 35.55 35.38 9.442 3.49952 5.08032 32.33 1485.14 1025.123 35.85 35.68 9.443 3.49970 5.08045 32.33 1485.15 1025.125 36.15 35.98 9.452 3.50012 5.07969 32.33 1485.18 1025.122 36.45 36.27 9.452 3.50051 5.08032 32.33 1485.19 1025.127 36.75 36.57 9.450 3.49992 5.07971 32.33 1485.18 1025.125 37.05 36.87 9.449 3.49941 5.07908 32.33 1485.18 1025.123 37.35 37.17 9.448 3.49961 5.07959 32.33 1485.18 1025.127 37.65 37.47 9.453 3.50157 5.08164 32.34 1485.23 1025.139 37.95 37.77 9.454 3.50074 5.08028 32.33 1485.22 1025.133 38.25 38.06 9.454 3.50115 5.08094 32.34 1485.23 1025.138 38.55 38.36 9.448 3.50180 5.08269 32.35 1485.23 1025.149 38.85 38.66 9.451 3.50114 5.08138 32.34 1485.23 1025.143 39.15 38.96 9.447 3.50102 5.08181 32.34 1485.23 1025.147 39.52 39.33 9.449 3.49888 5.07828 32.32 1485.21 1025.129