*2026/01/16 09:57:50.43 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/21 01:36:05.000 END TIME : UTC 2024/05/21 01:36:25.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 101 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.3 2 Depth metres 0.15 30.16 3 Temperature 'deg C (ITS90)' 9.317 15.324 4 Conductivity S/m 3.14617 3.60669 5 Conductance:Specific S/m 3.93719 5.07992 6 Salinity PSS-78 24.82 32.32 7 Speed:Sound m/s 1484.56 1496.23 8 Density kg/m^3 1018.113 1025.101 $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 : 112 LATITUDE : 48 52.93560 N ! (deg min) LONGITUDE : 125 4.51330 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240521_013605 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:59 101 101 MERGEHDR 1.3 2026/01/16 09:53:51 101 101 HDREDIT2 3.2 2026/01/16 09:55:05 ? ? REMOVECH 8.2 2026/01/16 09:56:16 101 101 CALIB 12.1 2026/01/16 09:56:49 101 101 CLEAN 5.3 2026/01/16 09:57:50 101 101 $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 15.324 3.20570 3.97497 25.10 1496.23 1018.291 0.45 0.45 15.232 3.16930 3.93878 24.84 1495.64 1018.113 0.75 0.75 15.157 3.18657 3.96761 25.04 1495.63 1018.281 1.05 1.05 15.057 3.17037 3.95734 24.96 1495.22 1018.244 1.35 1.35 14.954 3.14617 3.93719 24.82 1494.72 1018.154 1.65 1.65 14.981 3.15142 3.94110 24.85 1494.85 1018.172 1.95 1.95 14.969 3.16806 3.96313 25.00 1494.99 1018.293 2.25 2.25 15.029 3.19819 3.99486 25.22 1495.45 1018.454 2.55 2.55 14.965 3.21769 4.02561 25.43 1495.49 1018.630 2.85 2.85 14.871 3.25323 4.07965 25.81 1495.62 1018.937 3.15 3.15 13.617 3.48590 4.51347 28.77 1494.95 1021.472 3.45 3.45 13.072 3.60669 4.73665 30.31 1494.95 1022.767 3.75 3.75 12.596 3.58390 4.76633 30.48 1493.54 1022.989 4.05 4.05 12.174 3.57962 4.81469 30.79 1492.46 1023.305 4.35 4.35 11.736 3.57624 4.86746 31.12 1491.34 1023.642 4.65 4.65 11.413 3.57238 4.90539 31.35 1490.50 1023.884 4.95 4.95 11.167 3.56528 4.92890 31.49 1489.81 1024.038 5.25 5.24 11.030 3.55560 4.93423 31.51 1489.36 1024.080 5.55 5.54 10.872 3.54683 4.94367 31.56 1488.87 1024.147 5.85 5.84 10.751 3.54315 4.95538 31.63 1488.52 1024.223 6.15 6.14 10.691 3.54084 4.96035 31.66 1488.35 1024.256 6.45 6.44 10.639 3.54121 4.96811 31.71 1488.23 1024.304 6.75 6.74 10.609 3.54070 4.97169 31.73 1488.15 1024.328 7.05 7.04 10.559 3.53939 4.97673 31.76 1488.02 1024.360 7.35 7.33 10.515 3.53692 4.97949 31.77 1487.88 1024.380 7.65 7.63 10.476 3.53493 4.98219 31.79 1487.76 1024.399 7.95 7.93 10.444 3.53306 4.98406 31.80 1487.66 1024.413 8.25 8.23 10.422 3.53264 4.98646 31.81 1487.61 1024.430 8.55 8.53 10.382 3.53292 4.99260 31.85 1487.51 1024.468 8.85 8.83 10.327 3.53313 5.00061 31.90 1487.38 1024.517 9.15 9.13 10.255 3.52818 5.00387 31.91 1487.14 1024.541 9.45 9.42 10.201 3.52295 5.00405 31.91 1486.95 1024.547 9.75 9.72 10.138 3.51815 5.00623 31.91 1486.73 1024.565 10.05 10.02 10.085 3.51566 5.01025 31.94 1486.57 1024.592 10.35 10.32 10.033 3.51431 5.01567 31.97 1486.43 1024.626 10.65 10.62 9.988 3.51263 5.01982 31.99 1486.30 1024.653 10.95 10.92 9.963 3.51280 5.02360 32.01 1486.24 1024.677 11.25 11.22 9.904 3.51069 5.02911 32.04 1486.07 1024.712 11.55 11.51 9.879 3.51052 5.03245 32.06 1486.01 1024.734 11.85 11.81 9.868 3.50990 5.03318 32.07 1485.98 1024.740 12.15 12.11 9.843 3.50882 5.03518 32.08 1485.91 1024.753 12.45 12.41 9.830 3.50748 5.03517 32.08 1485.86 1024.755 12.75 12.71 9.802 3.50566 5.03654 32.08 1485.77 1024.766 13.05 13.01 9.782 3.50490 5.03830 32.09 1485.72 1024.778 13.35 13.30 9.741 3.50346 5.04225 32.12 1485.60 1024.804 13.65 13.60 9.726 3.50322 5.04404 32.13 1485.56 1024.816 13.95 13.90 9.701 3.50269 5.04691 32.14 1485.50 1024.834 14.25 14.20 9.685 3.50247 5.04897 32.15 1485.46 1024.848 14.55 14.50 9.670 3.50156 5.04983 32.16 1485.41 1024.854 14.85 14.80 9.662 3.50114 5.05047 32.16 1485.39 1024.860 15.15 15.09 9.640 3.50030 5.05245 32.17 1485.33 1024.873 15.45 15.39 9.615 3.49908 5.05424 32.18 1485.26 1024.886 15.75 15.69 9.612 3.49882 5.05432 32.18 1485.25 1024.888 16.05 15.99 9.603 3.49937 5.05640 32.20 1485.24 1024.901 16.35 16.29 9.602 3.49873 5.05562 32.19 1485.23 1024.898 16.65 16.59 9.596 3.49845 5.05614 32.19 1485.22 1024.902 16.95 16.89 9.579 3.49782 5.05769 32.20 1485.17 1024.913 17.25 17.18 9.574 3.49748 5.05798 32.20 1485.16 1024.916 17.55 17.48 9.559 3.49688 5.05925 32.21 1485.12 1024.925 17.85 17.78 9.520 3.49547 5.06300 32.23 1485.01 1024.949 18.15 18.08 9.483 3.49316 5.06502 32.24 1484.89 1024.964 18.45 18.38 9.459 3.49271 5.06788 32.26 1484.83 1024.982 18.75 18.68 9.449 3.49160 5.06781 32.25 1484.79 1024.983 19.05 18.97 9.437 3.49189 5.07002 32.27 1484.77 1024.997 19.35 19.27 9.431 3.49158 5.07036 32.27 1484.75 1025.001 19.65 19.57 9.426 3.49202 5.07176 32.28 1484.75 1025.010 19.95 19.87 9.420 3.49113 5.07138 32.27 1484.73 1025.010 20.25 20.17 9.415 3.49083 5.07163 32.28 1484.72 1025.012 20.55 20.47 9.410 3.49124 5.07305 32.28 1484.71 1025.022 20.85 20.76 9.410 3.49100 5.07267 32.28 1484.72 1025.021 21.15 21.06 9.405 3.49067 5.07288 32.28 1484.70 1025.024 21.45 21.36 9.404 3.49110 5.07371 32.29 1484.71 1025.030 21.75 21.66 9.403 3.49034 5.07279 32.28 1484.70 1025.026 22.05 21.96 9.399 3.49039 5.07334 32.28 1484.70 1025.030 22.35 22.26 9.398 3.49061 5.07384 32.29 1484.70 1025.034 22.65 22.55 9.398 3.49034 5.07351 32.28 1484.70 1025.034 22.95 22.85 9.394 3.49004 5.07361 32.29 1484.70 1025.036 23.25 23.15 9.391 3.48960 5.07347 32.28 1484.69 1025.036 23.55 23.45 9.385 3.48964 5.07435 32.29 1484.68 1025.043 23.85 23.75 9.381 3.48948 5.07467 32.29 1484.67 1025.046 24.15 24.05 9.379 3.48949 5.07500 32.29 1484.67 1025.049 24.45 24.34 9.372 3.48935 5.07589 32.30 1484.65 1025.056 24.75 24.64 9.371 3.48931 5.07594 32.30 1484.66 1025.057 25.05 24.94 9.368 3.48895 5.07591 32.30 1484.65 1025.059 25.35 25.24 9.363 3.48864 5.07617 32.30 1484.64 1025.062 25.65 25.54 9.358 3.48856 5.07680 32.30 1484.63 1025.067 25.95 25.84 9.357 3.48853 5.07684 32.30 1484.63 1025.068 26.25 26.13 9.355 3.48848 5.07710 32.30 1484.63 1025.071 26.55 26.43 9.353 3.48846 5.07739 32.30 1484.63 1025.074 26.85 26.73 9.354 3.48797 5.07658 32.30 1484.63 1025.071 27.15 27.03 9.350 3.48816 5.07732 32.30 1484.63 1025.076 27.45 27.33 9.346 3.48795 5.07765 32.30 1484.62 1025.079 27.75 27.63 9.345 3.48800 5.07785 32.31 1484.62 1025.082 28.05 27.92 9.348 3.48693 5.07590 32.29 1484.62 1025.072 28.35 28.22 9.342 3.48733 5.07728 32.30 1484.62 1025.081 28.65 28.52 9.334 3.48664 5.07759 32.30 1484.59 1025.085 28.95 28.82 9.327 3.48585 5.07748 32.30 1484.57 1025.086 29.25 29.12 9.324 3.48726 5.07992 32.32 1484.58 1025.101 29.55 29.42 9.320 3.48656 5.07942 32.31 1484.57 1025.099 29.85 29.71 9.317 3.48627 5.07949 32.31 1484.56 1025.101 30.30 30.16 9.319 3.48624 5.07918 32.31 1484.57 1025.101