*2026/01/16 10:37:58.28 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 18:45:00.000 END TIME : UTC 2025/07/22 18:45:29.000 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 43.72 2 Depth metres 0.15 43.5 3 Temperature 'deg C (ITS90)' 9.258 15.162 4 Conductivity S/m 3.45832 3.90462 5 Conductance:Specific S/m 4.83173 5.05827 6 Salinity PSS-78 31.13 32.16 7 Speed:Sound m/s 1484.14 1502.96 8 Density kg/m^3 1022.994 1025.042 $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 : 227 LATITUDE : 49 51.39480 N ! (deg min) LONGITUDE : 126 58.18580 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_184500 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 146 146 MERGEHDR 1.3 2026/01/16 10:35:48 146 146 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 146 146 CALIB 12.1 2026/01/16 10:37:22 146 146 CLEAN 5.3 2026/01/16 10:37:58 146 146 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:22 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 15.162 3.90462 4.86105 31.36 1502.96 1023.138 0.45 0.45 15.056 3.87081 4.83173 31.15 1502.38 1022.994 0.75 0.75 14.833 3.87526 4.86435 31.36 1501.92 1023.211 1.05 1.05 14.734 3.86101 4.85856 31.32 1501.55 1023.195 1.35 1.34 14.729 3.85756 4.85485 31.29 1501.51 1023.177 1.65 1.64 14.729 3.85817 4.85557 31.29 1501.52 1023.182 1.95 1.94 14.768 3.85719 4.84968 31.25 1501.60 1023.145 2.25 2.24 14.770 3.85692 4.84898 31.25 1501.61 1023.142 2.55 2.54 14.718 3.85615 4.85447 31.28 1501.49 1023.182 2.85 2.84 14.655 3.85228 4.85722 31.30 1501.31 1023.208 3.15 3.14 14.597 3.85107 4.86283 31.34 1501.17 1023.249 3.45 3.44 14.506 3.84671 4.86846 31.37 1500.92 1023.295 3.75 3.74 14.343 3.83620 4.87535 31.41 1500.44 1023.359 4.05 4.03 14.131 3.82751 4.89063 31.50 1499.86 1023.475 4.35 4.33 13.806 3.80381 4.90106 31.55 1498.86 1023.580 4.65 4.63 13.517 3.76349 4.88548 31.41 1497.75 1023.534 4.95 4.93 13.415 3.73878 4.86627 31.27 1497.24 1023.443 5.25 5.23 13.186 3.70777 4.85491 31.16 1496.36 1023.411 5.55 5.53 12.920 3.68109 4.85373 31.13 1495.44 1023.439 5.85 5.83 12.656 3.66569 4.86730 31.20 1494.63 1023.547 6.15 6.13 12.446 3.65570 4.88123 31.28 1494.02 1023.650 6.45 6.42 12.245 3.65122 4.90160 31.41 1493.49 1023.786 6.75 6.72 12.094 3.64732 4.91631 31.50 1493.08 1023.885 7.05 7.02 11.978 3.64346 4.92653 31.56 1492.76 1023.955 7.35 7.32 11.853 3.64093 4.93981 31.64 1492.43 1024.042 7.65 7.62 11.771 3.62917 4.93484 31.60 1492.09 1024.025 7.95 7.92 11.718 3.62426 4.93529 31.59 1491.91 1024.034 8.25 8.22 11.664 3.61906 4.93547 31.59 1491.72 1024.041 8.55 8.52 11.578 3.61506 4.94155 31.62 1491.47 1024.084 8.85 8.81 11.535 3.61502 4.94736 31.66 1491.37 1024.122 9.15 9.11 11.490 3.61255 4.95000 31.67 1491.24 1024.142 9.45 9.41 11.446 3.61010 4.95265 31.69 1491.10 1024.162 9.75 9.71 11.401 3.60931 4.95767 31.72 1490.99 1024.195 10.05 10.01 11.364 3.60484 4.95666 31.71 1490.85 1024.194 10.35 10.31 11.305 3.60149 4.96009 31.73 1490.67 1024.220 10.65 10.61 11.253 3.59595 4.95946 31.71 1490.48 1024.223 10.95 10.90 11.200 3.59248 4.96199 31.73 1490.31 1024.243 11.25 11.20 11.140 3.58838 4.96451 31.74 1490.12 1024.263 11.55 11.50 11.080 3.58563 4.96905 31.76 1489.94 1024.295 11.85 11.80 11.026 3.57969 4.96819 31.75 1489.74 1024.296 12.15 12.10 10.922 3.57006 4.96919 31.75 1489.37 1024.311 12.45 12.40 10.810 3.55745 4.96714 31.72 1488.95 1024.311 12.75 12.69 10.711 3.54931 4.96949 31.72 1488.61 1024.333 13.05 12.99 10.609 3.54509 4.97782 31.77 1488.30 1024.388 13.35 13.29 10.519 3.53979 4.98293 31.79 1488.02 1024.424 13.65 13.59 10.472 3.53397 4.98131 31.78 1487.84 1024.420 13.95 13.89 10.443 3.53237 4.98312 31.79 1487.75 1024.433 14.25 14.19 10.423 3.53039 4.98317 31.78 1487.68 1024.437 14.55 14.49 10.399 3.52676 4.98138 31.77 1487.58 1024.430 14.85 14.78 10.353 3.52543 4.98597 31.80 1487.45 1024.460 15.15 15.08 10.314 3.52411 4.98969 31.82 1487.34 1024.484 15.45 15.38 10.293 3.52396 4.99250 31.83 1487.29 1024.502 15.75 15.68 10.268 3.52401 4.99601 31.86 1487.23 1024.525 16.05 15.98 10.245 3.52259 4.99725 31.86 1487.16 1024.534 16.35 16.28 10.220 3.52155 4.99934 31.87 1487.09 1024.549 16.65 16.58 10.201 3.51986 4.99972 31.87 1487.02 1024.554 16.95 16.87 10.186 3.51948 5.00118 31.88 1486.99 1024.564 17.25 17.17 10.167 3.51896 5.00315 31.89 1486.94 1024.577 17.55 17.47 10.154 3.51833 5.00414 31.90 1486.90 1024.585 17.85 17.77 10.142 3.51698 5.00397 31.89 1486.86 1024.586 18.15 18.07 10.115 3.51688 5.00767 31.92 1486.79 1024.610 18.45 18.37 10.080 3.51657 5.01224 31.95 1486.71 1024.638 18.75 18.66 10.046 3.51364 5.01294 31.95 1486.59 1024.646 19.05 18.96 9.983 3.51005 5.01682 31.96 1486.39 1024.672 19.35 19.26 9.932 3.50280 5.01374 31.94 1486.17 1024.660 19.65 19.56 9.882 3.49765 5.01351 31.93 1485.99 1024.663 19.95 19.86 9.827 3.49590 5.01901 31.96 1485.83 1024.698 20.25 20.16 9.793 3.49468 5.02209 31.98 1485.73 1024.718 20.55 20.46 9.767 3.49422 5.02522 32.00 1485.67 1024.738 20.85 20.75 9.755 3.49349 5.02582 32.00 1485.63 1024.744 21.15 21.05 9.736 3.49240 5.02703 32.00 1485.57 1024.753 21.45 21.35 9.718 3.49234 5.02957 32.02 1485.53 1024.769 21.75 21.65 9.702 3.49005 5.02855 32.01 1485.47 1024.766 22.05 21.95 9.688 3.48947 5.02985 32.02 1485.43 1024.775 22.35 22.25 9.679 3.48886 5.03023 32.02 1485.40 1024.779 22.65 22.54 9.672 3.48636 5.02761 32.00 1485.36 1024.766 22.95 22.84 9.650 3.48569 5.02991 32.01 1485.30 1024.781 23.25 23.14 9.632 3.48478 5.03113 32.02 1485.25 1024.790 23.55 23.44 9.617 3.48345 5.03137 32.02 1485.20 1024.793 23.85 23.74 9.606 3.48184 5.03077 32.01 1485.15 1024.792 24.15 24.04 9.593 3.48131 5.03180 32.02 1485.12 1024.800 24.45 24.33 9.581 3.48034 5.03215 32.02 1485.08 1024.804 24.75 24.63 9.574 3.48035 5.03323 32.02 1485.07 1024.811 25.05 24.93 9.564 3.48021 5.03442 32.03 1485.04 1024.819 25.35 25.23 9.560 3.48041 5.03527 32.04 1485.04 1024.826 25.65 25.53 9.558 3.48042 5.03561 32.04 1485.04 1024.829 25.95 25.83 9.553 3.48010 5.03595 32.04 1485.03 1024.832 26.25 26.12 9.547 3.48017 5.03686 32.05 1485.02 1024.839 26.55 26.42 9.541 3.47909 5.03624 32.04 1484.99 1024.837 26.85 26.72 9.540 3.47840 5.03538 32.03 1484.99 1024.834 27.15 27.02 9.534 3.47740 5.03473 32.03 1484.96 1024.832 27.45 27.32 9.527 3.47696 5.03519 32.03 1484.94 1024.836 27.75 27.62 9.522 3.47661 5.03533 32.03 1484.93 1024.838 28.05 27.92 9.518 3.47749 5.03716 32.04 1484.94 1024.850 28.35 28.21 9.514 3.47685 5.03694 32.04 1484.92 1024.850 28.65 28.51 9.512 3.47742 5.03796 32.05 1484.93 1024.857 28.95 28.81 9.513 3.47715 5.03750 32.04 1484.94 1024.856 29.25 29.11 9.510 3.47751 5.03841 32.05 1484.94 1024.862 29.55 29.41 9.507 3.47675 5.03774 32.04 1484.93 1024.860 29.85 29.71 9.500 3.47722 5.03945 32.06 1484.92 1024.871 30.15 30.00 9.496 3.47646 5.03889 32.05 1484.90 1024.869 30.45 30.30 9.484 3.47594 5.03992 32.06 1484.87 1024.877 30.75 30.60 9.466 3.47628 5.04299 32.08 1484.83 1024.896 31.05 30.90 9.450 3.47557 5.04433 32.08 1484.79 1024.905 31.35 31.20 9.438 3.47246 5.04164 32.06 1484.72 1024.893 31.65 31.50 9.424 3.46990 5.04000 32.05 1484.66 1024.885 31.95 31.79 9.403 3.46960 5.04250 32.06 1484.61 1024.902 32.25 32.09 9.388 3.46753 5.04181 32.06 1484.55 1024.900 32.55 32.39 9.377 3.46600 5.04117 32.05 1484.50 1024.898 32.85 32.69 9.363 3.46549 5.04248 32.06 1484.46 1024.907 33.15 32.99 9.347 3.46444 5.04329 32.06 1484.42 1024.914 33.45 33.29 9.329 3.46429 5.04571 32.07 1484.37 1024.929 33.75 33.58 9.310 3.46310 5.04671 32.08 1484.31 1024.937 34.05 33.88 9.295 3.46020 5.04481 32.06 1484.24 1024.928 34.35 34.18 9.275 3.45832 5.04495 32.06 1484.17 1024.932 34.65 34.48 9.265 3.45861 5.04688 32.07 1484.15 1024.944 34.95 34.78 9.260 3.45840 5.04730 32.08 1484.14 1024.948 35.25 35.08 9.260 3.45941 5.04876 32.09 1484.16 1024.957 35.55 35.37 9.258 3.45906 5.04854 32.08 1484.16 1024.957 35.85 35.67 9.260 3.45843 5.04727 32.07 1484.16 1024.951 36.15 35.97 9.265 3.45927 5.04779 32.08 1484.19 1024.955 36.45 36.27 9.267 3.46093 5.04997 32.09 1484.22 1024.968 36.75 36.57 9.271 3.46156 5.05032 32.10 1484.24 1024.971 37.05 36.87 9.277 3.46279 5.05117 32.10 1484.28 1024.977 37.35 37.16 9.286 3.46467 5.05257 32.11 1484.33 1024.986 37.65 37.46 9.294 3.46528 5.05234 32.11 1484.36 1024.985 37.95 37.76 9.299 3.46596 5.05255 32.12 1484.39 1024.987 38.25 38.06 9.305 3.46734 5.05371 32.13 1484.42 1024.995 38.55 38.36 9.307 3.46878 5.05552 32.14 1484.45 1025.006 38.85 38.66 9.310 3.47035 5.05732 32.15 1484.49 1025.017 39.15 38.95 9.317 3.47034 5.05635 32.15 1484.51 1025.013 39.45 39.25 9.323 3.47019 5.05521 32.14 1484.53 1025.007 39.75 39.55 9.329 3.47029 5.05444 32.13 1484.55 1025.004 40.05 39.85 9.333 3.47068 5.05441 32.13 1484.57 1025.005 40.35 40.15 9.334 3.47020 5.05356 32.13 1484.57 1025.001 40.65 40.45 9.333 3.47132 5.05542 32.14 1484.58 1025.013 40.95 40.74 9.335 3.47204 5.05618 32.15 1484.60 1025.018 41.25 41.04 9.336 3.47155 5.05520 32.14 1484.61 1025.014 41.55 41.34 9.335 3.47191 5.05587 32.14 1484.61 1025.019 41.85 41.64 9.338 3.47241 5.05628 32.15 1484.63 1025.022 42.15 41.94 9.341 3.47136 5.05429 32.13 1484.63 1025.013 42.45 42.24 9.339 3.47136 5.05450 32.13 1484.63 1025.015 42.75 42.53 9.335 3.47066 5.05406 32.13 1484.62 1025.014 43.05 42.83 9.327 3.47008 5.05448 32.13 1484.59 1025.018 43.35 43.13 9.321 3.47102 5.05677 32.15 1484.59 1025.032 43.72 43.50 9.323 3.47233 5.05827 32.16 1484.62 1025.042