*2026/01/16 10:37:59.70 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/23 21:23:49.000 END TIME : UTC 2025/07/23 21:24:17.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 141 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.18 2 Depth metres 0.15 41.95 3 Temperature 'deg C (ITS90)' 8.488 15.335 4 Conductivity S/m 3.44973 3.91915 5 Conductance:Specific S/m 4.85513 5.15143 6 Salinity PSS-78 31.33 32.69 7 Speed:Sound m/s 1482.15 1503.5 8 Density kg/m^3 1023.082 1025.582 $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 : 244 LATITUDE : 49 35.93610 N ! (deg min) LONGITUDE : 126 36.69810 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250723_212349 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:35 141 141 MERGEHDR 1.3 2026/01/16 10:35:49 141 141 HDREDIT2 3.2 2026/01/16 10:36:20 ? ? REMOVECH 8.2 2026/01/16 10:36:52 141 141 CALIB 12.1 2026/01/16 10:37:23 141 141 CLEAN 5.3 2026/01/16 10:37:59 141 141 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:20 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 10:36:52 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:23 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 14.980 3.91817 4.90021 31.63 1502.69 1023.384 0.45 0.45 15.130 3.91856 4.88234 31.52 1503.04 1023.262 0.75 0.75 15.226 3.91860 4.87075 31.44 1503.26 1023.184 1.05 1.05 15.294 3.91915 4.86322 31.39 1503.42 1023.132 1.35 1.34 15.335 3.91666 4.85513 31.33 1503.50 1023.082 1.65 1.64 15.272 3.91657 4.86267 31.38 1503.36 1023.135 1.95 1.94 15.009 3.90862 4.88462 31.52 1502.69 1023.300 2.25 2.24 14.838 3.90246 4.89791 31.61 1502.24 1023.402 2.55 2.54 14.730 3.90017 4.90832 31.67 1501.98 1023.477 2.85 2.84 14.580 3.89319 4.91808 31.73 1501.57 1023.556 3.15 3.14 14.426 3.87992 4.92047 31.74 1501.08 1023.593 3.45 3.44 14.295 3.87678 4.93294 31.82 1500.76 1023.683 3.75 3.74 14.121 3.86078 4.93440 31.81 1500.19 1023.718 4.05 4.03 13.944 3.84341 4.93449 31.80 1499.60 1023.744 4.35 4.33 13.843 3.82965 4.92962 31.76 1499.22 1023.733 4.65 4.63 13.712 3.82578 4.94131 31.83 1498.88 1023.817 4.95 4.93 13.613 3.82585 4.95416 31.91 1498.66 1023.903 5.25 5.23 13.516 3.82209 4.96168 31.96 1498.40 1023.959 5.55 5.53 13.468 3.81921 4.96408 31.97 1498.26 1023.980 5.85 5.83 13.412 3.81289 4.96314 31.96 1498.06 1023.983 6.15 6.12 13.361 3.80721 4.96231 31.95 1497.89 1023.986 6.45 6.42 13.318 3.80407 4.96387 31.95 1497.75 1024.002 6.75 6.72 13.268 3.80157 4.96698 31.97 1497.62 1024.027 7.05 7.02 13.235 3.80201 4.97185 32.00 1497.55 1024.059 7.35 7.32 13.211 3.80183 4.97477 32.02 1497.49 1024.080 7.65 7.62 13.186 3.80137 4.97739 32.04 1497.44 1024.099 7.95 7.92 13.163 3.80058 4.97941 32.05 1497.38 1024.114 8.25 8.21 13.137 3.79824 4.97971 32.05 1497.30 1024.120 8.55 8.51 13.100 3.79507 4.98038 32.05 1497.18 1024.130 8.85 8.81 13.070 3.79145 4.97963 32.04 1497.07 1024.131 9.15 9.11 13.032 3.78931 4.98171 32.06 1496.97 1024.148 9.45 9.41 12.978 3.78745 4.98637 32.08 1496.82 1024.182 9.75 9.71 12.863 3.78041 4.99216 32.11 1496.48 1024.229 10.05 10.01 12.725 3.76766 4.99355 32.11 1496.01 1024.255 10.35 10.31 12.683 3.76235 4.99208 32.10 1495.86 1024.253 10.65 10.60 12.661 3.75658 4.98736 32.06 1495.74 1024.231 10.95 10.90 12.627 3.74945 4.98235 32.02 1495.59 1024.208 11.25 11.20 12.570 3.74552 4.98468 32.03 1495.41 1024.229 11.55 11.50 12.513 3.74403 4.99036 32.07 1495.26 1024.268 11.85 11.80 12.470 3.74249 4.99403 32.09 1495.15 1024.295 12.15 12.10 12.431 3.74203 4.99860 32.12 1495.06 1024.326 12.45 12.39 12.388 3.73906 5.00036 32.13 1494.93 1024.341 12.75 12.69 12.346 3.73461 5.00005 32.12 1494.78 1024.346 13.05 12.99 12.296 3.72679 4.99623 32.09 1494.57 1024.331 13.35 13.29 12.204 3.72042 5.00007 32.10 1494.29 1024.364 13.65 13.59 12.113 3.71156 5.00037 32.10 1493.97 1024.377 13.95 13.89 12.008 3.70237 5.00215 32.10 1493.62 1024.399 14.25 14.19 11.908 3.69717 5.00862 32.13 1493.32 1024.446 14.55 14.48 11.829 3.69116 5.01128 32.15 1493.06 1024.470 14.85 14.78 11.720 3.68247 5.01420 32.15 1492.70 1024.499 15.15 15.08 11.567 3.66565 5.01228 32.12 1492.14 1024.504 15.45 15.38 11.471 3.65504 5.01081 32.10 1491.79 1024.506 15.75 15.68 11.356 3.64966 5.01931 32.15 1491.45 1024.566 16.05 15.98 11.247 3.64136 5.02296 32.16 1491.09 1024.597 16.35 16.28 11.116 3.63409 5.03108 32.21 1490.68 1024.655 16.65 16.57 10.966 3.61849 5.03048 32.18 1490.13 1024.665 16.95 16.87 10.835 3.60845 5.03481 32.20 1489.69 1024.701 17.25 17.17 10.752 3.60025 5.03501 32.19 1489.39 1024.710 17.55 17.47 10.696 3.59744 5.03896 32.21 1489.22 1024.738 17.85 17.77 10.651 3.59627 5.04372 32.24 1489.10 1024.769 18.15 18.07 10.597 3.59329 5.04715 32.26 1488.94 1024.793 18.45 18.36 10.535 3.58899 5.04986 32.27 1488.74 1024.814 18.75 18.66 10.486 3.58608 5.05280 32.28 1488.58 1024.836 19.05 18.96 10.435 3.58412 5.05732 32.31 1488.43 1024.865 19.35 19.26 10.392 3.58125 5.05935 32.32 1488.30 1024.881 19.65 19.56 10.371 3.57933 5.05973 32.32 1488.23 1024.886 19.95 19.86 10.354 3.57866 5.06117 32.33 1488.18 1024.896 20.25 20.15 10.338 3.57819 5.06278 32.34 1488.14 1024.908 20.55 20.45 10.330 3.57742 5.06291 32.34 1488.11 1024.910 20.85 20.75 10.320 3.57733 5.06418 32.34 1488.09 1024.919 21.15 21.05 10.317 3.57701 5.06418 32.34 1488.09 1024.921 21.45 21.35 10.315 3.57668 5.06396 32.34 1488.08 1024.921 21.75 21.65 10.311 3.57653 5.06433 32.34 1488.08 1024.924 22.05 21.94 10.303 3.57588 5.06449 32.34 1488.05 1024.927 22.35 22.24 10.293 3.57557 5.06549 32.35 1488.03 1024.935 22.65 22.54 10.277 3.57416 5.06582 32.35 1487.98 1024.939 22.95 22.84 10.255 3.57218 5.06613 32.35 1487.90 1024.943 23.25 23.14 10.229 3.57074 5.06791 32.36 1487.82 1024.956 23.55 23.44 10.197 3.56840 5.06921 32.36 1487.72 1024.967 23.85 23.74 10.173 3.56572 5.06887 32.36 1487.63 1024.968 24.15 24.03 10.131 3.56093 5.06805 32.34 1487.47 1024.967 24.45 24.33 10.086 3.55774 5.06997 32.35 1487.32 1024.982 24.75 24.63 10.039 3.55349 5.07071 32.35 1487.16 1024.991 25.05 24.93 10.000 3.55059 5.07227 32.36 1487.03 1025.003 25.35 25.23 9.976 3.55005 5.07494 32.37 1486.97 1025.021 25.65 25.53 9.958 3.54800 5.07467 32.37 1486.90 1025.021 25.95 25.82 9.931 3.54312 5.07160 32.34 1486.77 1025.007 26.25 26.12 9.894 3.54100 5.07396 32.35 1486.66 1025.024 26.55 26.42 9.865 3.54066 5.07770 32.38 1486.59 1025.048 26.85 26.72 9.839 3.54012 5.08064 32.39 1486.52 1025.067 27.15 27.02 9.815 3.53805 5.08122 32.39 1486.44 1025.073 27.45 27.32 9.791 3.53572 5.08143 32.39 1486.35 1025.076 27.75 27.61 9.775 3.53514 5.08287 32.40 1486.31 1025.087 28.05 27.91 9.764 3.53375 5.08248 32.40 1486.27 1025.086 28.35 28.21 9.756 3.53378 5.08365 32.40 1486.25 1025.094 28.65 28.51 9.748 3.53342 5.08432 32.41 1486.23 1025.100 28.95 28.81 9.739 3.53232 5.08406 32.40 1486.20 1025.100 29.25 29.11 9.735 3.53259 5.08509 32.41 1486.20 1025.107 29.55 29.40 9.728 3.53142 5.08437 32.40 1486.17 1025.105 29.85 29.70 9.713 3.53047 5.08527 32.41 1486.13 1025.112 30.15 30.00 9.696 3.52833 5.08467 32.40 1486.06 1025.111 30.45 30.30 9.673 3.52663 5.08553 32.40 1485.99 1025.118 30.75 30.60 9.666 3.52801 5.08855 32.42 1485.99 1025.137 31.05 30.90 9.629 3.52628 5.09153 32.44 1485.88 1025.157 31.35 31.19 9.582 3.52158 5.09167 32.44 1485.71 1025.161 31.65 31.49 9.539 3.51707 5.09147 32.43 1485.54 1025.164 31.95 31.79 9.493 3.51410 5.09399 32.44 1485.39 1025.181 32.25 32.09 9.447 3.51074 5.09593 32.45 1485.24 1025.196 32.55 32.39 9.400 3.50517 5.09474 32.43 1485.05 1025.193 32.85 32.68 9.333 3.49941 5.09632 32.43 1484.81 1025.206 33.15 32.98 9.254 3.49601 5.10304 32.47 1484.57 1025.248 33.45 33.28 9.197 3.49118 5.10452 32.47 1484.37 1025.260 33.75 33.58 9.147 3.48752 5.10668 32.48 1484.20 1025.276 34.05 33.88 9.073 3.48377 5.11216 32.51 1483.97 1025.310 34.35 34.18 9.024 3.48162 5.11647 32.53 1483.82 1025.337 34.65 34.47 8.985 3.47744 5.11607 32.52 1483.67 1025.338 34.95 34.77 8.933 3.47455 5.11972 32.54 1483.50 1025.361 35.25 35.07 8.891 3.47119 5.12106 32.54 1483.36 1025.372 35.55 35.37 8.855 3.46985 5.12462 32.56 1483.25 1025.394 35.85 35.67 8.831 3.47028 5.12891 32.59 1483.20 1025.420 36.15 35.97 8.819 3.46862 5.12828 32.58 1483.15 1025.418 36.45 36.26 8.814 3.46756 5.12734 32.57 1483.13 1025.414 36.75 36.56 8.822 3.47108 5.13143 32.60 1483.20 1025.438 37.05 36.86 8.778 3.46764 5.13305 32.61 1483.04 1025.450 37.35 37.16 8.758 3.46792 5.13648 32.63 1483.00 1025.470 37.65 37.46 8.744 3.46768 5.13817 32.64 1482.97 1025.482 37.95 37.75 8.718 3.46545 5.13893 32.64 1482.87 1025.488 38.25 38.05 8.699 3.46401 5.13968 32.64 1482.81 1025.494 38.55 38.35 8.689 3.46202 5.13824 32.63 1482.76 1025.488 38.85 38.65 8.676 3.46057 5.13797 32.63 1482.72 1025.488 39.15 38.95 8.659 3.45901 5.13837 32.63 1482.66 1025.492 39.45 39.25 8.646 3.45844 5.13944 32.63 1482.62 1025.499 39.75 39.54 8.632 3.45615 5.13822 32.62 1482.56 1025.494 40.05 39.84 8.608 3.45537 5.14073 32.64 1482.49 1025.510 40.35 40.14 8.584 3.45392 5.14215 32.64 1482.42 1025.520 40.65 40.44 8.566 3.45321 5.14384 32.65 1482.37 1025.531 40.95 40.74 8.553 3.45233 5.14467 32.65 1482.32 1025.537 41.25 41.04 8.542 3.45070 5.14391 32.65 1482.28 1025.535 41.55 41.33 8.526 3.45041 5.14581 32.66 1482.24 1025.547 41.85 41.63 8.505 3.44973 5.14810 32.67 1482.18 1025.562 42.18 41.95 8.488 3.45026 5.15143 32.69 1482.15 1025.582