*2026/01/16 09:57:46.85 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/10 23:47:00.000 END TIME : UTC 2024/01/10 23:47:22.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 113 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.64 2 Depth metres 0.15 33.52 3 Temperature 'deg C (ITS90)' 8.433 10.798 4 Conductivity S/m 2.3226 3.49581 5 Conductance:Specific S/m 3.4735 4.89007 6 Salinity PSS-78 21.18 31.15 7 Speed:Sound m/s 1467.11 1488.39 8 Density kg/m^3 1016.395 1023.98 $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 : 6 LATITUDE : 48 52.85140 N ! (deg min) LONGITUDE : 125 7.61210 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240110_234700 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 113 113 MERGEHDR 1.3 2026/01/16 09:53:43 113 113 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 113 113 CALIB 12.1 2026/01/16 09:56:45 113 113 CLEAN 5.3 2026/01/16 09:57:46 113 113 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 8.461 2.32821 3.47903 21.22 1467.26 1016.422 0.45 0.45 8.433 2.32260 3.47350 21.18 1467.11 1016.395 0.75 0.75 8.666 2.42548 3.60230 22.07 1469.09 1017.059 1.05 1.05 8.920 2.52812 3.72658 22.93 1471.13 1017.699 1.35 1.35 9.178 2.73599 4.00253 24.83 1474.43 1019.147 1.65 1.65 9.327 2.89182 4.21213 26.28 1476.77 1020.260 1.95 1.95 9.391 2.90962 4.23018 26.41 1477.17 1020.354 2.25 2.25 9.431 2.93369 4.26027 26.62 1477.58 1020.515 2.55 2.55 9.533 2.96363 4.29104 26.84 1478.24 1020.675 2.85 2.85 9.628 2.99934 4.33077 27.13 1478.95 1020.884 3.15 3.15 9.727 3.04427 4.38314 27.50 1479.77 1021.162 3.45 3.45 9.756 3.06539 4.40982 27.69 1480.11 1021.305 3.75 3.75 9.772 3.10375 4.46300 28.06 1480.62 1021.593 4.05 4.05 9.854 3.13960 4.50393 28.36 1481.29 1021.811 4.35 4.35 9.911 3.14513 4.50444 28.37 1481.52 1021.811 4.65 4.65 9.963 3.17728 4.54380 28.65 1482.05 1022.023 4.95 4.95 9.986 3.19135 4.56093 28.77 1482.29 1022.116 5.25 5.25 10.012 3.19572 4.56374 28.79 1482.41 1022.130 5.55 5.55 10.081 3.22947 4.60287 29.07 1483.01 1022.340 5.85 5.84 10.104 3.23655 4.60990 29.12 1483.16 1022.378 6.15 6.14 10.096 3.26171 4.64686 29.38 1483.45 1022.581 6.45 6.44 10.115 3.27899 4.66887 29.54 1483.72 1022.701 6.75 6.74 10.154 3.28012 4.66536 29.52 1483.84 1022.680 7.05 7.04 10.180 3.30132 4.69205 29.71 1484.17 1022.825 7.35 7.34 10.218 3.31999 4.71349 29.86 1484.50 1022.941 7.65 7.64 10.281 3.34537 4.74101 30.06 1484.97 1023.088 7.95 7.94 10.326 3.35813 4.75302 30.15 1485.25 1023.152 8.25 8.24 10.319 3.35816 4.75399 30.16 1485.24 1023.159 8.55 8.54 10.318 3.35254 4.74619 30.10 1485.17 1023.118 8.85 8.83 10.340 3.35744 4.75015 30.13 1485.29 1023.139 9.15 9.13 10.345 3.36072 4.75422 30.16 1485.35 1023.162 9.45 9.43 10.366 3.37525 4.77183 30.29 1485.58 1023.258 9.75 9.73 10.420 3.38600 4.77981 30.35 1485.86 1023.299 10.05 10.03 10.444 3.38867 4.78027 30.36 1485.96 1023.301 10.35 10.33 10.451 3.38922 4.78015 30.36 1485.98 1023.301 10.65 10.63 10.444 3.38744 4.77860 30.34 1485.95 1023.295 10.95 10.93 10.458 3.39050 4.78097 30.36 1486.03 1023.308 11.25 11.23 10.456 3.38952 4.77989 30.35 1486.02 1023.303 11.55 11.52 10.453 3.39101 4.78242 30.37 1486.03 1023.319 11.85 11.82 10.453 3.39211 4.78400 30.38 1486.05 1023.329 12.15 12.12 10.456 3.39356 4.78554 30.39 1486.08 1023.338 12.45 12.42 10.461 3.39440 4.78607 30.40 1486.11 1023.342 12.75 12.72 10.472 3.39783 4.78951 30.42 1486.18 1023.361 13.05 13.02 10.482 3.40122 4.79293 30.45 1486.25 1023.381 13.35 13.32 10.494 3.40120 4.79122 30.44 1486.29 1023.372 13.65 13.62 10.489 3.39957 4.78965 30.43 1486.26 1023.365 13.95 13.91 10.492 3.40213 4.79281 30.45 1486.30 1023.383 14.25 14.21 10.506 3.40353 4.79294 30.45 1486.36 1023.384 14.55 14.51 10.510 3.40429 4.79343 30.45 1486.38 1023.387 14.85 14.81 10.527 3.40607 4.79361 30.46 1486.46 1023.388 15.15 15.11 10.541 3.41548 4.80497 30.54 1486.61 1023.451 15.45 15.41 10.555 3.41718 4.80543 30.54 1486.67 1023.454 15.75 15.71 10.572 3.41861 4.80523 30.54 1486.73 1023.453 16.05 16.01 10.571 3.42024 4.80764 30.56 1486.76 1023.467 16.35 16.31 10.572 3.42297 4.81127 30.59 1486.80 1023.488 16.65 16.60 10.581 3.42272 4.80982 30.58 1486.82 1023.481 16.95 16.90 10.583 3.42496 4.81260 30.60 1486.86 1023.497 17.25 17.20 10.593 3.42801 4.81558 30.62 1486.93 1023.514 17.55 17.50 10.606 3.43037 4.81707 30.63 1486.99 1023.522 17.85 17.80 10.613 3.43041 4.81626 30.63 1487.02 1023.519 18.15 18.10 10.614 3.43135 4.81735 30.63 1487.04 1023.526 18.45 18.40 10.620 3.43322 4.81923 30.65 1487.08 1023.537 18.75 18.70 10.627 3.43347 4.81862 30.64 1487.10 1023.534 19.05 18.99 10.628 3.43323 4.81819 30.64 1487.11 1023.533 19.35 19.29 10.633 3.43472 4.81961 30.65 1487.14 1023.542 19.65 19.59 10.638 3.43614 4.82085 30.66 1487.18 1023.549 19.95 19.89 10.644 3.43624 4.82023 30.66 1487.20 1023.547 20.25 20.19 10.640 3.43503 4.81901 30.65 1487.18 1023.542 20.55 20.49 10.655 3.43862 4.82209 30.67 1487.26 1023.559 20.85 20.79 10.675 3.44278 4.82521 30.69 1487.37 1023.576 21.15 21.09 10.688 3.44799 4.83071 30.73 1487.47 1023.606 21.45 21.38 10.701 3.44874 4.82997 30.73 1487.52 1023.602 21.75 21.68 10.706 3.44961 4.83061 30.74 1487.54 1023.607 22.05 21.98 10.708 3.45141 4.83281 30.75 1487.58 1023.620 22.35 22.28 10.714 3.45181 4.83261 30.75 1487.60 1023.619 22.65 22.58 10.725 3.45421 4.83444 30.76 1487.66 1023.630 22.95 22.88 10.737 3.45731 4.83710 30.78 1487.74 1023.645 23.25 23.18 10.742 3.46196 4.84304 30.83 1487.81 1023.678 23.55 23.48 10.751 3.46408 4.84470 30.84 1487.86 1023.688 23.85 23.78 10.764 3.46838 4.84902 30.87 1487.95 1023.712 24.15 24.07 10.769 3.47405 4.85619 30.92 1488.04 1023.752 24.45 24.37 10.777 3.47715 4.85947 30.95 1488.10 1023.771 24.75 24.67 10.793 3.48347 4.86618 31.00 1488.22 1023.808 25.05 24.97 10.798 3.48620 4.86925 31.02 1488.27 1023.825 25.35 25.27 10.793 3.48859 4.87324 31.05 1488.29 1023.849 25.65 25.57 10.790 3.49014 4.87588 31.06 1488.30 1023.865 25.95 25.87 10.781 3.49056 4.87769 31.08 1488.29 1023.877 26.25 26.16 10.772 3.49019 4.87838 31.08 1488.27 1023.883 26.55 26.46 10.767 3.48992 4.87876 31.08 1488.26 1023.886 26.85 26.76 10.761 3.48955 4.87903 31.08 1488.24 1023.890 27.15 27.06 10.751 3.48910 4.87973 31.09 1488.22 1023.896 27.45 27.36 10.742 3.48815 4.87968 31.08 1488.19 1023.897 27.75 27.66 10.737 3.48884 4.88129 31.09 1488.19 1023.908 28.05 27.96 10.737 3.48926 4.88182 31.10 1488.20 1023.912 28.35 28.26 10.737 3.48958 4.88235 31.10 1488.21 1023.916 28.65 28.55 10.737 3.48967 4.88245 31.10 1488.21 1023.918 28.95 28.85 10.731 3.48939 4.88287 31.10 1488.20 1023.922 29.25 29.15 10.724 3.48873 4.88284 31.10 1488.18 1023.924 29.55 29.45 10.724 3.48843 4.88253 31.10 1488.18 1023.923 29.85 29.75 10.718 3.48800 4.88276 31.10 1488.16 1023.926 30.15 30.05 10.711 3.48769 4.88328 31.10 1488.15 1023.931 30.45 30.35 10.712 3.48815 4.88368 31.11 1488.16 1023.934 30.75 30.65 10.713 3.48869 4.88432 31.11 1488.17 1023.939 31.05 30.94 10.712 3.48817 4.88380 31.11 1488.17 1023.938 31.35 31.24 10.709 3.48803 4.88401 31.11 1488.16 1023.940 31.65 31.54 10.704 3.48792 4.88453 31.11 1488.15 1023.945 31.95 31.84 10.706 3.48798 4.88432 31.11 1488.17 1023.945 32.25 32.14 10.706 3.48815 4.88459 31.11 1488.17 1023.948 32.55 32.44 10.703 3.48805 4.88481 31.11 1488.17 1023.950 32.85 32.74 10.703 3.48907 4.88630 31.12 1488.18 1023.960 33.15 33.03 10.722 3.49311 4.88926 31.15 1488.29 1023.976 33.45 33.33 10.737 3.49517 4.89007 31.15 1488.36 1023.980 33.64 33.52 10.748 3.49581 4.88956 31.15 1488.39 1023.977