*2026/01/16 09:57:50.31 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/20 23:19:50.000 END TIME : UTC 2024/05/20 23:20:10.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.71 2 Depth metres 0.15 30.57 3 Temperature 'deg C (ITS90)' 9.174 15.752 4 Conductivity S/m 2.43715 3.58903 5 Conductance:Specific S/m 2.99026 5.09252 6 Salinity PSS-78 18.37 32.38 7 Speed:Sound m/s 1484.06 1496 8 Density kg/m^3 1013.048 1025.182 $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 : 108 LATITUDE : 48 57.35040 N ! (deg min) LONGITUDE : 124 59.60280 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240520_231950 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 103 103 MERGEHDR 1.3 2026/01/16 09:53:51 103 103 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:16 103 103 CALIB 12.1 2026/01/16 09:56:49 103 103 CLEAN 5.3 2026/01/16 09:57:50 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:05 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 09:56:16 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:49 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 15.752 2.43715 2.99026 18.37 1489.86 1013.048 0.45 0.45 15.748 2.44296 2.99763 18.42 1489.91 1013.088 0.75 0.75 15.681 2.45293 3.01485 18.53 1489.83 1013.189 1.05 1.06 15.626 2.48212 3.05487 18.80 1489.96 1013.406 1.35 1.36 15.592 2.49512 3.07340 18.92 1490.00 1013.509 1.65 1.66 15.453 2.51979 3.11446 19.19 1489.86 1013.746 1.95 1.96 15.163 2.68336 3.34055 20.72 1490.67 1014.970 2.25 2.26 14.435 3.18588 4.03941 25.50 1493.83 1018.786 2.55 2.56 14.032 3.34409 4.28382 27.19 1494.46 1020.164 2.85 2.86 13.900 3.42756 4.40560 28.03 1495.02 1020.844 3.15 3.16 13.840 3.50905 4.51726 28.82 1495.75 1021.462 3.45 3.46 13.719 3.55930 4.59635 29.37 1496.00 1021.912 3.75 3.76 13.420 3.58773 4.66914 29.86 1495.58 1022.353 4.05 4.06 13.107 3.58903 4.70918 30.12 1494.84 1022.614 4.35 4.36 12.612 3.57087 4.74694 30.35 1493.44 1022.884 4.65 4.66 12.309 3.56016 4.77114 30.49 1492.58 1023.053 4.95 4.96 12.003 3.54886 4.79541 30.63 1491.70 1023.221 5.25 5.25 11.718 3.54332 4.82505 30.81 1490.93 1023.415 5.55 5.55 11.446 3.53389 4.84811 30.95 1490.15 1023.569 5.85 5.85 11.213 3.52645 4.86904 31.07 1489.49 1023.707 6.15 6.15 11.029 3.52172 4.88736 31.18 1488.97 1023.826 6.45 6.45 10.808 3.51805 4.91235 31.33 1488.38 1023.983 6.75 6.75 10.645 3.51395 4.92914 31.43 1487.92 1024.090 7.05 7.05 10.519 3.51246 4.94445 31.52 1487.59 1024.186 7.35 7.35 10.378 3.51201 4.96351 31.64 1487.23 1024.302 7.65 7.64 10.286 3.51167 4.97595 31.72 1487.00 1024.379 7.95 7.94 10.249 3.51170 4.98131 31.75 1486.91 1024.412 8.25 8.24 10.191 3.51138 4.98899 31.80 1486.76 1024.460 8.55 8.54 10.138 3.51166 4.99699 31.85 1486.64 1024.509 8.85 8.84 10.082 3.51137 5.00449 31.89 1486.50 1024.555 9.15 9.14 10.012 3.51018 5.01281 31.94 1486.31 1024.607 9.45 9.43 9.942 3.50854 5.02052 31.99 1486.11 1024.655 9.75 9.73 9.871 3.50736 5.02900 32.04 1485.92 1024.708 10.05 10.03 9.814 3.50616 5.03557 32.08 1485.77 1024.749 10.35 10.33 9.784 3.50547 5.03887 32.10 1485.69 1024.770 10.65 10.63 9.752 3.50464 5.04233 32.12 1485.60 1024.792 10.95 10.93 9.713 3.50284 5.04536 32.13 1485.48 1024.812 11.25 11.23 9.689 3.50254 5.04853 32.15 1485.42 1024.832 11.55 11.52 9.661 3.50191 5.05163 32.17 1485.35 1024.852 11.85 11.82 9.637 3.50152 5.05464 32.19 1485.29 1024.872 12.15 12.12 9.617 3.49941 5.05441 32.18 1485.21 1024.873 12.45 12.42 9.597 3.49941 5.05734 32.20 1485.17 1024.891 12.75 12.72 9.580 3.49913 5.05944 32.22 1485.13 1024.905 13.05 13.02 9.567 3.49997 5.06259 32.24 1485.11 1024.924 13.35 13.31 9.554 3.49884 5.06290 32.24 1485.06 1024.928 13.65 13.61 9.538 3.49768 5.06353 32.24 1485.01 1024.934 13.95 13.91 9.523 3.49677 5.06436 32.24 1484.97 1024.940 14.25 14.21 9.507 3.49691 5.06699 32.26 1484.93 1024.957 14.55 14.51 9.494 3.49620 5.06778 32.26 1484.90 1024.963 14.85 14.81 9.479 3.49477 5.06796 32.26 1484.84 1024.966 15.15 15.10 9.470 3.49483 5.06936 32.27 1484.83 1024.976 15.45 15.40 9.443 3.49369 5.07165 32.28 1484.75 1024.991 15.75 15.70 9.428 3.49287 5.07275 32.29 1484.70 1024.999 16.05 16.00 9.425 3.49213 5.07208 32.28 1484.69 1024.997 16.35 16.30 9.405 3.49011 5.07209 32.28 1484.62 1024.999 16.65 16.60 9.392 3.48959 5.07324 32.28 1484.59 1025.007 16.95 16.89 9.385 3.48985 5.07472 32.29 1484.57 1025.017 17.25 17.19 9.369 3.48920 5.07608 32.30 1484.53 1025.027 17.55 17.49 9.362 3.48944 5.07747 32.31 1484.52 1025.036 17.85 17.79 9.357 3.48996 5.07901 32.32 1484.52 1025.046 18.15 18.09 9.343 3.48834 5.07862 32.32 1484.47 1025.046 18.45 18.39 9.343 3.48803 5.07828 32.31 1484.47 1025.045 18.75 18.68 9.345 3.48854 5.07870 32.32 1484.48 1025.049 19.05 18.98 9.328 3.48814 5.08058 32.33 1484.44 1025.061 19.35 19.28 9.331 3.48656 5.07792 32.31 1484.43 1025.047 19.65 19.58 9.326 3.48693 5.07916 32.32 1484.43 1025.056 19.95 19.88 9.316 3.48680 5.08044 32.32 1484.41 1025.065 20.25 20.18 9.311 3.48624 5.08043 32.32 1484.39 1025.066 20.55 20.47 9.313 3.48638 5.08024 32.32 1484.40 1025.066 20.85 20.77 9.297 3.48488 5.08050 32.32 1484.35 1025.070 21.15 21.07 9.286 3.48438 5.08135 32.33 1484.32 1025.076 21.45 21.37 9.285 3.48433 5.08145 32.33 1484.32 1025.078 21.75 21.67 9.286 3.48496 5.08222 32.33 1484.33 1025.083 22.05 21.97 9.273 3.48454 5.08344 32.34 1484.30 1025.092 22.35 22.26 9.270 3.48388 5.08304 32.33 1484.29 1025.091 22.65 22.56 9.264 3.48407 5.08415 32.34 1484.28 1025.099 22.95 22.86 9.254 3.48281 5.08384 32.34 1484.24 1025.099 23.25 23.16 9.235 3.48145 5.08468 32.34 1484.18 1025.106 23.55 23.46 9.222 3.48095 5.08580 32.35 1484.15 1025.114 23.85 23.76 9.216 3.48125 5.08711 32.35 1484.14 1025.123 24.15 24.05 9.215 3.48134 5.08747 32.36 1484.14 1025.126 24.45 24.35 9.202 3.48099 5.08893 32.37 1484.11 1025.136 24.75 24.65 9.200 3.48058 5.08863 32.36 1484.11 1025.136 25.05 24.95 9.187 3.48036 5.09014 32.37 1484.08 1025.146 25.35 25.25 9.185 3.48012 5.09015 32.37 1484.07 1025.147 25.65 25.55 9.187 3.48014 5.08986 32.37 1484.08 1025.147 25.95 25.84 9.181 3.48035 5.09107 32.38 1484.07 1025.155 26.25 26.14 9.177 3.47978 5.09085 32.37 1484.06 1025.155 26.55 26.44 9.179 3.48022 5.09117 32.38 1484.08 1025.158 26.85 26.74 9.176 3.47967 5.09077 32.37 1484.07 1025.157 27.15 27.04 9.174 3.48022 5.09188 32.38 1484.07 1025.165 27.45 27.34 9.184 3.48069 5.09110 32.38 1484.11 1025.161 27.75 27.63 9.182 3.48118 5.09207 32.38 1484.12 1025.168 28.05 27.93 9.186 3.47945 5.08897 32.36 1484.11 1025.152 28.35 28.23 9.179 3.48023 5.09112 32.38 1484.11 1025.165 28.65 28.53 9.183 3.48127 5.09212 32.38 1484.13 1025.172 28.95 28.83 9.181 3.48067 5.09160 32.38 1484.12 1025.171 29.25 29.13 9.178 3.48003 5.09108 32.37 1484.11 1025.169 29.55 29.42 9.178 3.48025 5.09141 32.38 1484.12 1025.172 29.85 29.72 9.182 3.48052 5.09111 32.38 1484.14 1025.172 30.15 30.02 9.179 3.47980 5.09052 32.37 1484.13 1025.170 30.45 30.32 9.175 3.48078 5.09252 32.38 1484.14 1025.182 30.71 30.57 9.181 3.47999 5.09049 32.37 1484.14 1025.172