*2026/01/16 10:37:57.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 16:48:24.000 END TIME : UTC 2025/06/26 16:48:53.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 146 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.79 2 Depth metres 0.15 43.59 3 Temperature 'deg C (ITS90)' 8.893 13.6 4 Conductivity S/m 3.42603 3.68304 5 Conductance:Specific S/m 4.76683 5.05467 6 Salinity PSS-78 30.57 32.07 7 Speed:Sound m/s 1482.91 1497 8 Density kg/m^3 1022.854 1025.041 $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 : 202 LATITUDE : 48 54.60640 N ! (deg min) LONGITUDE : 125 28.49760 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_164824 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 146 146 MERGEHDR 1.3 2026/01/16 10:35:47 146 146 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 146 146 CALIB 12.1 2026/01/16 10:37:20 146 146 CLEAN 5.3 2026/01/16 10:37:57 146 146 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 13.600 3.68304 4.77074 30.60 1497.00 1022.871 0.45 0.45 13.577 3.67776 4.76683 30.57 1496.89 1022.854 0.75 0.75 13.546 3.68094 4.77479 30.62 1496.85 1022.904 1.05 1.05 13.532 3.67867 4.77358 30.62 1496.80 1022.900 1.35 1.35 13.523 3.67905 4.77519 30.63 1496.79 1022.911 1.65 1.64 13.519 3.67885 4.77536 30.63 1496.78 1022.914 1.95 1.94 13.528 3.67916 4.77470 30.62 1496.81 1022.911 2.25 2.24 13.529 3.67916 4.77450 30.62 1496.82 1022.911 2.55 2.54 13.515 3.67746 4.77412 30.62 1496.77 1022.912 2.85 2.84 13.492 3.67766 4.77718 30.64 1496.72 1022.933 3.15 3.14 13.456 3.67686 4.78061 30.66 1496.63 1022.958 3.45 3.44 13.398 3.67433 4.78455 30.68 1496.47 1022.988 3.75 3.74 13.349 3.66881 4.78350 30.67 1496.30 1022.990 4.05 4.04 13.283 3.66276 4.78376 30.67 1496.08 1023.002 4.35 4.33 13.225 3.65983 4.78725 30.69 1495.91 1023.030 4.65 4.63 13.164 3.65603 4.78985 30.70 1495.73 1023.053 4.95 4.93 13.100 3.65113 4.79148 30.70 1495.53 1023.071 5.25 5.23 13.050 3.64947 4.79564 30.73 1495.39 1023.102 5.55 5.53 13.006 3.64815 4.79939 30.75 1495.28 1023.129 5.85 5.83 12.970 3.64849 4.80438 30.78 1495.20 1023.162 6.15 6.13 12.916 3.64809 4.81074 30.83 1495.07 1023.205 6.45 6.43 12.828 3.64234 4.81429 30.84 1494.80 1023.237 6.75 6.73 12.719 3.63130 4.81356 30.83 1494.42 1023.247 7.05 7.03 12.616 3.62382 4.81685 30.84 1494.09 1023.279 7.35 7.32 12.534 3.61804 4.81965 30.85 1493.83 1023.305 7.65 7.62 12.421 3.60975 4.82315 30.87 1493.46 1023.339 7.95 7.92 12.362 3.60779 4.82821 30.90 1493.30 1023.375 8.25 8.22 12.308 3.60465 4.83090 30.91 1493.14 1023.397 8.55 8.52 12.237 3.60161 4.83601 30.94 1492.94 1023.434 8.85 8.82 12.170 3.59758 4.83937 30.96 1492.73 1023.461 9.15 9.12 12.101 3.59366 4.84309 30.98 1492.52 1023.490 9.45 9.42 12.039 3.58748 4.84291 30.97 1492.30 1023.497 9.75 9.71 11.970 3.58137 4.84356 30.97 1492.07 1023.509 10.05 10.01 11.890 3.57919 4.85111 31.01 1491.85 1023.561 10.35 10.31 11.819 3.57124 4.84976 31.00 1491.59 1023.562 10.65 10.61 11.755 3.56833 4.85418 31.02 1491.40 1023.594 10.95 10.91 11.701 3.56655 4.85897 31.05 1491.25 1023.627 11.25 11.21 11.650 3.56522 4.86385 31.08 1491.11 1023.660 11.55 11.51 11.611 3.56322 4.86637 31.09 1491.00 1023.679 11.85 11.81 11.579 3.56273 4.86992 31.11 1490.92 1023.703 12.15 12.10 11.545 3.56240 4.87400 31.14 1490.83 1023.730 12.45 12.40 11.509 3.56129 4.87734 31.16 1490.74 1023.753 12.75 12.70 11.485 3.55936 4.87782 31.16 1490.66 1023.760 13.05 13.00 11.457 3.55894 4.88098 31.18 1490.59 1023.781 13.35 13.30 11.416 3.55762 4.88471 31.20 1490.48 1023.807 13.65 13.60 11.357 3.55572 4.88996 31.23 1490.31 1023.842 13.95 13.90 11.307 3.55130 4.89064 31.23 1490.14 1023.852 14.25 14.20 11.271 3.54668 4.88916 31.22 1490.00 1023.848 14.55 14.49 11.232 3.54245 4.88862 31.21 1489.86 1023.850 14.85 14.79 11.185 3.54074 4.89258 31.23 1489.73 1023.878 15.15 15.09 11.121 3.53825 4.89779 31.26 1489.54 1023.913 15.45 15.39 11.074 3.53646 4.90173 31.28 1489.41 1023.940 15.75 15.69 11.042 3.53459 4.90341 31.29 1489.31 1023.954 16.05 15.99 11.004 3.53224 4.90537 31.30 1489.19 1023.969 16.35 16.29 10.962 3.52875 4.90622 31.30 1489.05 1023.978 16.65 16.59 10.922 3.52680 4.90898 31.32 1488.93 1023.998 16.95 16.88 10.884 3.52381 4.90996 31.32 1488.80 1024.008 17.25 17.18 10.853 3.52027 4.90935 31.31 1488.69 1024.009 17.55 17.48 10.807 3.51838 4.91299 31.33 1488.55 1024.034 17.85 17.78 10.764 3.51578 4.91530 31.34 1488.42 1024.051 18.15 18.08 10.733 3.51562 4.91924 31.37 1488.35 1024.077 18.45 18.38 10.696 3.51368 4.92169 31.38 1488.23 1024.094 18.75 18.68 10.669 3.51248 4.92367 31.39 1488.16 1024.109 19.05 18.97 10.646 3.51127 4.92526 31.40 1488.09 1024.120 19.35 19.27 10.621 3.50949 4.92622 31.40 1488.01 1024.129 19.65 19.57 10.609 3.50923 4.92751 31.41 1487.98 1024.138 19.95 19.87 10.598 3.50877 4.92830 31.41 1487.95 1024.145 20.25 20.17 10.589 3.50929 4.93034 31.43 1487.94 1024.158 20.55 20.47 10.583 3.50879 4.93044 31.43 1487.92 1024.160 20.85 20.77 10.577 3.50887 4.93132 31.43 1487.91 1024.167 21.15 21.06 10.571 3.50849 4.93168 31.43 1487.90 1024.171 21.45 21.36 10.559 3.50744 4.93181 31.43 1487.86 1024.173 21.75 21.66 10.540 3.50725 4.93424 31.45 1487.81 1024.190 22.05 21.96 10.527 3.50678 4.93540 31.46 1487.78 1024.198 22.35 22.26 10.520 3.50588 4.93503 31.45 1487.76 1024.198 22.65 22.56 10.501 3.50347 4.93429 31.44 1487.68 1024.197 22.95 22.86 10.478 3.50171 4.93505 31.45 1487.61 1024.204 23.25 23.15 10.460 3.50021 4.93547 31.45 1487.55 1024.209 23.55 23.45 10.444 3.50022 4.93764 31.46 1487.51 1024.223 23.85 23.75 10.430 3.50008 4.93944 31.47 1487.48 1024.235 24.15 24.05 10.423 3.49944 4.93954 31.47 1487.46 1024.238 24.45 24.35 10.415 3.49796 4.93852 31.46 1487.43 1024.234 24.75 24.65 10.408 3.49806 4.93966 31.47 1487.42 1024.242 25.05 24.95 10.396 3.49743 4.94043 31.47 1487.38 1024.248 25.35 25.24 10.383 3.49874 4.94409 31.50 1487.37 1024.271 25.65 25.54 10.369 3.49739 4.94411 31.50 1487.32 1024.273 25.95 25.84 10.350 3.49698 4.94615 31.51 1487.28 1024.287 26.25 26.14 10.338 3.49560 4.94591 31.50 1487.23 1024.288 26.55 26.44 10.322 3.49569 4.94827 31.52 1487.20 1024.303 26.85 26.74 10.302 3.49387 4.94859 31.52 1487.13 1024.308 27.15 27.04 10.289 3.49325 4.94954 31.52 1487.09 1024.315 27.45 27.33 10.277 3.49237 4.94999 31.53 1487.05 1024.320 27.75 27.63 10.261 3.49286 4.95291 31.54 1487.03 1024.338 28.05 27.93 10.248 3.49259 4.95428 31.55 1486.99 1024.348 28.35 28.23 10.210 3.49048 4.95662 31.56 1486.88 1024.365 28.65 28.53 10.148 3.48626 4.95947 31.58 1486.67 1024.386 28.95 28.83 10.076 3.48367 4.96596 31.61 1486.46 1024.428 29.25 29.13 9.967 3.47758 4.97271 31.65 1486.11 1024.473 29.55 29.42 9.897 3.47195 4.97455 31.65 1485.87 1024.489 29.85 29.72 9.843 3.46524 4.97263 31.63 1485.65 1024.483 30.15 30.02 9.737 3.45927 4.97919 31.66 1485.31 1024.527 30.45 30.32 9.597 3.45407 4.99191 31.73 1484.89 1024.606 30.75 30.62 9.501 3.44849 4.99771 31.76 1484.57 1024.645 31.05 30.92 9.443 3.44444 5.00024 31.77 1484.38 1024.663 31.35 31.22 9.390 3.44067 5.00242 31.78 1484.20 1024.679 31.65 31.51 9.305 3.43850 5.01166 31.83 1483.96 1024.735 31.95 31.81 9.259 3.43739 5.01672 31.86 1483.83 1024.766 32.25 32.11 9.233 3.43661 5.01947 31.88 1483.76 1024.784 32.55 32.41 9.214 3.43663 5.02223 31.89 1483.71 1024.802 32.85 32.71 9.200 3.43644 5.02400 31.90 1483.68 1024.813 33.15 33.01 9.188 3.43594 5.02511 31.91 1483.64 1024.821 33.45 33.30 9.174 3.43537 5.02625 31.92 1483.61 1024.829 33.75 33.60 9.165 3.43575 5.02819 31.93 1483.59 1024.842 34.05 33.90 9.156 3.43538 5.02891 31.93 1483.57 1024.847 34.35 34.20 9.150 3.43477 5.02899 31.93 1483.55 1024.849 34.65 34.50 9.148 3.43491 5.02941 31.93 1483.55 1024.853 34.95 34.80 9.144 3.43429 5.02910 31.93 1483.54 1024.853 35.25 35.09 9.136 3.43441 5.03055 31.94 1483.52 1024.862 35.55 35.39 9.128 3.43469 5.03205 31.95 1483.51 1024.872 35.85 35.69 9.123 3.43374 5.03138 31.94 1483.49 1024.870 36.15 35.99 9.119 3.43393 5.03231 31.95 1483.49 1024.877 36.45 36.29 9.114 3.43380 5.03276 31.95 1483.48 1024.880 36.75 36.59 9.112 3.43388 5.03325 31.95 1483.48 1024.885 37.05 36.89 9.111 3.43337 5.03267 31.95 1483.47 1024.883 37.35 37.18 9.106 3.43426 5.03463 31.96 1483.48 1024.895 37.65 37.48 9.105 3.43390 5.03430 31.96 1483.47 1024.895 37.95 37.78 9.103 3.43314 5.03353 31.95 1483.46 1024.892 38.25 38.08 9.096 3.43349 5.03497 31.96 1483.46 1024.901 38.55 38.38 9.088 3.43362 5.03634 31.97 1483.44 1024.910 38.85 38.68 9.076 3.43339 5.03786 31.98 1483.41 1024.920 39.15 38.97 9.060 3.43189 5.03803 31.98 1483.35 1024.923 39.45 39.27 9.066 3.43100 5.03578 31.96 1483.37 1024.912 39.75 39.57 9.052 3.42823 5.03376 31.95 1483.30 1024.903 40.05 39.87 9.001 3.42754 5.04034 31.99 1483.16 1024.942 40.35 40.17 8.966 3.42747 5.04538 32.02 1483.07 1024.973 40.65 40.47 8.950 3.42726 5.04746 32.03 1483.03 1024.986 40.95 40.76 8.937 3.42666 5.04864 32.04 1483.00 1024.995 41.25 41.06 8.931 3.42755 5.05083 32.05 1483.00 1025.008 41.55 41.36 8.926 3.42724 5.05109 32.05 1482.98 1025.011 41.85 41.66 8.919 3.42680 5.05139 32.05 1482.97 1025.014 42.15 41.96 8.915 3.42744 5.05292 32.06 1482.97 1025.024 42.45 42.26 8.915 3.42723 5.05274 32.06 1482.97 1025.024 42.75 42.55 8.911 3.42685 5.05269 32.06 1482.96 1025.025 43.05 42.85 8.907 3.42606 5.05221 32.06 1482.94 1025.024 43.35 43.15 8.893 3.42603 5.05412 32.07 1482.91 1025.036 43.79 43.59 8.894 3.42647 5.05467 32.07 1482.93 1025.041