*2026/01/16 10:37:52.41 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/10 19:33:37.000 END TIME : UTC 2025/04/10 19:34:01.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 124 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.11 2 Depth metres 0.15 37.02 3 Temperature 'deg C (ITS90)' 8.459 9.962 4 Conductivity S/m 1.58081 3.15872 5 Conductance:Specific S/m 2.28267 4.70398 6 Salinity PSS-78 13.47 29.57 7 Speed:Sound m/s 1462.31 1480.55 8 Density kg/m^3 1010.24 1023.105 $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 : 110 LATITUDE : 50 3.40860 N ! (deg min) LONGITUDE : 127 12.93160 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250410_193337 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 124 124 MERGEHDR 1.3 2026/01/16 10:35:42 124 124 HDREDIT2 3.2 2026/01/16 10:36:13 ? ? REMOVECH 8.2 2026/01/16 10:36:40 124 124 CALIB 12.1 2026/01/16 10:37:15 124 124 CLEAN 5.3 2026/01/16 10:37:52 124 124 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:13 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:15 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 9.626 1.58081 2.28267 13.47 1462.31 1010.240 0.45 0.45 9.878 1.77129 2.53923 15.13 1465.31 1011.506 0.75 0.76 9.950 1.79820 2.57256 15.35 1465.85 1011.670 1.05 1.06 9.940 1.96622 2.81373 16.93 1467.72 1012.895 1.35 1.36 9.912 2.26443 3.24308 19.77 1471.05 1015.106 1.65 1.66 9.890 2.39882 3.43770 21.07 1472.55 1016.122 1.95 1.96 9.874 2.69541 3.86453 23.95 1475.99 1018.371 2.25 2.26 9.962 2.97281 4.25147 26.62 1479.55 1020.432 2.55 2.56 9.915 3.01467 4.31718 27.07 1479.92 1020.791 2.85 2.86 9.879 3.01710 4.32509 27.12 1479.86 1020.837 3.15 3.16 9.861 3.02521 4.33900 27.21 1479.91 1020.915 3.45 3.46 9.844 3.03422 4.35397 27.31 1479.98 1020.998 3.75 3.76 9.816 3.04392 4.37149 27.43 1480.02 1021.096 4.05 4.06 9.803 3.04917 4.38063 27.49 1480.05 1021.147 4.35 4.36 9.794 3.05388 4.38851 27.55 1480.09 1021.192 4.65 4.66 9.764 3.05542 4.39451 27.59 1480.03 1021.227 4.95 4.96 9.734 3.05909 4.40364 27.65 1480.00 1021.280 5.25 5.26 9.721 3.06501 4.41379 27.71 1480.04 1021.337 5.55 5.56 9.710 3.07085 4.42361 27.78 1480.08 1021.392 5.85 5.86 9.689 3.07656 4.43444 27.85 1480.10 1021.453 6.15 6.15 9.666 3.08091 4.44370 27.91 1480.09 1021.506 6.45 6.45 9.650 3.08652 4.45382 27.98 1480.12 1021.563 6.75 6.75 9.623 3.08950 4.46161 28.03 1480.09 1021.608 7.05 7.05 9.600 3.09228 4.46860 28.08 1480.07 1021.649 7.35 7.35 9.600 3.09454 4.47191 28.10 1480.10 1021.668 7.65 7.65 9.597 3.09563 4.47386 28.12 1480.11 1021.680 7.95 7.95 9.595 3.09711 4.47620 28.13 1480.13 1021.694 8.25 8.25 9.593 3.09762 4.47722 28.14 1480.13 1021.701 8.55 8.55 9.588 3.09889 4.47971 28.15 1480.14 1021.716 8.85 8.85 9.580 3.10107 4.48391 28.18 1480.15 1021.741 9.15 9.15 9.566 3.10101 4.48570 28.19 1480.11 1021.752 9.45 9.45 9.557 3.10172 4.48786 28.21 1480.10 1021.766 9.75 9.75 9.549 3.10151 4.48862 28.21 1480.08 1021.772 10.05 10.05 9.534 3.10069 4.48934 28.21 1480.03 1021.778 10.35 10.34 9.530 3.10148 4.49101 28.23 1480.04 1021.788 10.65 10.64 9.526 3.10223 4.49261 28.24 1480.04 1021.799 10.95 10.94 9.522 3.10332 4.49471 28.25 1480.05 1021.812 11.25 11.24 9.520 3.10363 4.49537 28.25 1480.05 1021.816 11.55 11.54 9.519 3.10380 4.49582 28.26 1480.05 1021.820 11.85 11.84 9.517 3.10552 4.49848 28.28 1480.08 1021.836 12.15 12.14 9.515 3.10620 4.49985 28.28 1480.08 1021.845 12.45 12.44 9.507 3.10754 4.50275 28.30 1480.08 1021.862 12.75 12.74 9.498 3.10940 4.50667 28.33 1480.08 1021.885 13.05 13.04 9.495 3.11142 4.50999 28.35 1480.11 1021.905 13.35 13.34 9.496 3.11148 4.50988 28.35 1480.12 1021.906 13.65 13.64 9.496 3.11240 4.51126 28.36 1480.13 1021.914 13.95 13.94 9.492 3.11299 4.51264 28.37 1480.13 1021.923 14.25 14.23 9.484 3.11363 4.51459 28.38 1480.12 1021.936 14.55 14.53 9.478 3.11381 4.51567 28.39 1480.11 1021.943 14.85 14.83 9.474 3.11425 4.51683 28.40 1480.11 1021.951 15.15 15.13 9.476 3.11388 4.51597 28.39 1480.12 1021.947 15.45 15.43 9.487 3.11433 4.51523 28.39 1480.16 1021.944 15.75 15.73 9.492 3.11628 4.51744 28.40 1480.20 1021.957 16.05 16.03 9.492 3.11952 4.52205 28.43 1480.25 1021.983 16.35 16.33 9.503 3.11986 4.52108 28.43 1480.29 1021.979 16.65 16.63 9.520 3.12148 4.52127 28.43 1480.36 1021.980 16.95 16.93 9.537 3.12542 4.52473 28.46 1480.46 1021.999 17.25 17.23 9.542 3.12864 4.52878 28.49 1480.51 1022.022 17.55 17.53 9.544 3.13028 4.53080 28.50 1480.55 1022.034 17.85 17.83 9.546 3.12976 4.52988 28.49 1480.55 1022.030 18.15 18.12 9.546 3.12978 4.52984 28.49 1480.55 1022.031 18.45 18.42 9.540 3.12907 4.52965 28.49 1480.53 1022.032 18.75 18.72 9.525 3.12630 4.52755 28.48 1480.46 1022.023 19.05 19.02 9.509 3.12400 4.52631 28.47 1480.40 1022.018 19.35 19.32 9.491 3.12340 4.52790 28.47 1480.34 1022.029 19.65 19.62 9.469 3.12212 4.52885 28.48 1480.27 1022.037 19.95 19.92 9.451 3.12074 4.52925 28.48 1480.21 1022.041 20.25 20.22 9.411 3.11931 4.53240 28.50 1480.09 1022.062 20.55 20.52 9.377 3.11660 4.53291 28.49 1479.97 1022.068 20.85 20.82 9.345 3.11094 4.52896 28.46 1479.81 1022.050 21.15 21.12 9.299 3.10884 4.53197 28.48 1479.67 1022.070 21.45 21.42 9.255 3.10672 4.53465 28.49 1479.52 1022.088 21.75 21.71 9.239 3.10682 4.53702 28.51 1479.48 1022.103 22.05 22.01 9.217 3.10818 4.54191 28.54 1479.44 1022.132 22.35 22.31 9.178 3.11376 4.55515 28.62 1479.41 1022.207 22.65 22.61 9.167 3.11225 4.55450 28.62 1479.37 1022.205 22.95 22.91 9.172 3.10860 4.54847 28.58 1479.34 1022.174 23.25 23.21 9.182 3.10880 4.54743 28.57 1479.38 1022.169 23.55 23.51 9.167 3.12234 4.56923 28.72 1479.51 1022.289 23.85 23.81 9.146 3.12725 4.57917 28.79 1479.52 1022.345 24.15 24.11 9.144 3.12647 4.57834 28.78 1479.51 1022.342 24.45 24.41 9.133 3.12533 4.57812 28.78 1479.47 1022.343 24.75 24.71 9.097 3.12057 4.57598 28.76 1479.31 1022.334 25.05 25.01 9.068 3.11308 4.56897 28.71 1479.14 1022.299 25.35 25.30 9.043 3.11087 4.56906 28.70 1479.05 1022.302 25.65 25.60 8.998 3.11191 4.57666 28.75 1478.94 1022.347 25.95 25.90 8.953 3.11394 4.58567 28.81 1478.85 1022.399 26.25 26.20 8.924 3.11379 4.58931 28.83 1478.78 1022.421 26.55 26.50 8.903 3.11378 4.59220 28.84 1478.72 1022.439 26.85 26.80 8.881 3.11434 4.59597 28.87 1478.67 1022.462 27.15 27.10 8.859 3.11399 4.59842 28.88 1478.61 1022.478 27.45 27.40 8.829 3.11440 4.60316 28.91 1478.54 1022.506 27.75 27.70 8.801 3.11477 4.60754 28.94 1478.47 1022.532 28.05 28.00 8.758 3.11289 4.61059 28.95 1478.33 1022.552 28.35 28.30 8.733 3.10813 4.60699 28.92 1478.21 1022.535 28.65 28.59 8.697 3.10677 4.60991 28.94 1478.09 1022.553 28.95 28.89 8.648 3.10547 4.61461 28.97 1477.95 1022.582 29.25 29.19 8.605 3.10594 4.62127 29.01 1477.84 1022.621 29.55 29.49 8.594 3.10602 4.62283 29.02 1477.82 1022.631 29.85 29.79 8.576 3.10616 4.62553 29.03 1477.77 1022.648 30.15 30.09 8.558 3.10780 4.63045 29.06 1477.75 1022.677 30.45 30.39 8.540 3.10852 4.63399 29.09 1477.71 1022.698 30.75 30.69 8.527 3.11115 4.63979 29.12 1477.71 1022.731 31.05 30.99 8.508 3.11252 4.64438 29.15 1477.68 1022.758 31.35 31.29 8.495 3.11522 4.65028 29.19 1477.69 1022.792 31.65 31.58 8.485 3.11826 4.65627 29.23 1477.70 1022.826 31.95 31.88 8.475 3.12040 4.66079 29.26 1477.71 1022.852 32.25 32.18 8.469 3.12135 4.66301 29.28 1477.71 1022.866 32.55 32.48 8.464 3.12475 4.66875 29.32 1477.74 1022.898 32.85 32.78 8.462 3.12698 4.67246 29.34 1477.77 1022.920 33.15 33.08 8.461 3.12892 4.67545 29.36 1477.80 1022.937 33.45 33.38 8.460 3.13038 4.67776 29.38 1477.82 1022.951 33.75 33.68 8.461 3.13125 4.67899 29.39 1477.83 1022.959 34.05 33.98 8.459 3.13389 4.68320 29.41 1477.87 1022.983 34.35 34.28 8.465 3.13980 4.69122 29.47 1477.96 1023.028 34.65 34.57 8.477 3.14296 4.69417 29.49 1478.04 1023.045 34.95 34.87 8.493 3.14783 4.69918 29.53 1478.15 1023.073 35.25 35.17 8.511 3.15038 4.70053 29.54 1478.24 1023.081 35.55 35.47 8.540 3.14974 4.69551 29.51 1478.32 1023.054 35.85 35.77 8.553 3.14660 4.68906 29.47 1478.32 1023.020 36.15 36.07 8.541 3.15258 4.69955 29.54 1478.37 1023.078 36.45 36.37 8.542 3.15448 4.70224 29.56 1478.40 1023.094 36.75 36.67 8.558 3.15675 4.70343 29.57 1478.47 1023.101 37.11 37.02 8.575 3.15872 4.70398 29.57 1478.55 1023.105