*2026/01/16 09:57:53.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 18:58:53.000 END TIME : UTC 2024/07/10 18:59:20.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 139 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.6 2 Depth metres 0.15 41.4 3 Temperature 'deg C (ITS90)' 9.049 19.07 4 Conductivity S/m 3.49762 3.76592 5 Conductance:Specific S/m 4.02348 5.13714 6 Salinity PSS-78 25.59 32.68 7 Speed:Sound m/s 1484.2 1508.88 8 Density kg/m^3 1017.837 1025.48 $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 : 177 LATITUDE : 49 39.94780 N ! (deg min) LONGITUDE : 126 28.99530 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_185853 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 139 139 MERGEHDR 1.3 2026/01/16 09:53:57 139 139 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 139 139 CALIB 12.1 2026/01/16 09:56:52 139 139 CLEAN 5.3 2026/01/16 09:57:53 139 139 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 19.046 3.54942 4.02921 25.63 1508.27 1017.864 0.45 0.45 19.036 3.54353 4.02348 25.59 1508.20 1017.837 0.75 0.75 19.016 3.54974 4.03235 25.65 1508.22 1017.890 1.05 1.05 19.070 3.59551 4.07930 25.98 1508.76 1018.132 1.35 1.35 18.988 3.62942 4.12543 26.30 1508.88 1018.399 1.65 1.65 18.729 3.66235 4.18753 26.74 1508.61 1018.790 1.95 1.95 18.241 3.72313 4.30509 27.55 1508.10 1019.530 2.25 2.25 17.851 3.75463 4.38106 28.08 1507.53 1020.024 2.55 2.55 17.465 3.76592 4.43415 28.44 1506.78 1020.391 2.85 2.85 16.912 3.76443 4.49092 28.82 1505.54 1020.809 3.15 3.15 16.273 3.75334 4.54696 29.18 1503.99 1021.234 3.45 3.45 15.543 3.72594 4.59507 29.48 1502.05 1021.625 3.75 3.75 15.104 3.71985 4.63774 29.76 1500.98 1021.933 4.05 4.05 14.595 3.72063 4.69837 30.16 1499.80 1022.346 4.35 4.35 14.076 3.71841 4.75793 30.55 1498.57 1022.752 4.65 4.65 13.431 3.70454 4.81970 30.93 1496.90 1023.183 4.95 4.95 13.054 3.69433 4.85406 31.15 1495.89 1023.422 5.25 5.24 12.675 3.68537 4.89104 31.38 1494.89 1023.674 5.55 5.54 12.439 3.67840 4.91247 31.51 1494.25 1023.820 5.85 5.84 12.307 3.67629 4.92708 31.60 1493.91 1023.917 6.15 6.14 12.196 3.67698 4.94273 31.70 1493.65 1024.017 6.45 6.44 12.084 3.67722 4.95796 31.79 1493.39 1024.115 6.75 6.74 11.908 3.66017 4.95851 31.78 1492.77 1024.138 7.05 7.04 11.826 3.65425 4.96150 31.79 1492.51 1024.164 7.35 7.33 11.714 3.64967 4.97044 31.84 1492.19 1024.226 7.65 7.63 11.629 3.64715 4.97853 31.89 1491.96 1024.280 7.95 7.93 11.541 3.64153 4.98281 31.91 1491.68 1024.314 8.25 8.23 11.450 3.64017 4.99337 31.98 1491.45 1024.382 8.55 8.53 11.362 3.63399 4.99702 31.99 1491.16 1024.411 8.85 8.83 11.307 3.62698 4.99485 31.97 1490.95 1024.406 9.15 9.13 11.233 3.62314 4.99971 32.00 1490.73 1024.441 9.45 9.42 11.183 3.62075 5.00333 32.02 1490.58 1024.466 9.75 9.72 11.113 3.61534 5.00553 32.03 1490.35 1024.486 10.05 10.02 11.058 3.61309 5.01004 32.05 1490.19 1024.517 10.35 10.32 11.001 3.61109 5.01522 32.08 1490.03 1024.552 10.65 10.62 10.945 3.60753 5.01814 32.10 1489.85 1024.574 10.95 10.92 10.894 3.60387 5.02012 32.10 1489.69 1024.590 11.25 11.22 10.871 3.60297 5.02219 32.12 1489.62 1024.605 11.55 11.51 10.848 3.60253 5.02471 32.13 1489.57 1024.622 11.85 11.81 10.829 3.60216 5.02692 32.14 1489.52 1024.637 12.15 12.11 10.791 3.59963 5.02873 32.15 1489.40 1024.651 12.45 12.41 10.757 3.59522 5.02725 32.14 1489.27 1024.647 12.75 12.71 10.721 3.59410 5.03075 32.16 1489.17 1024.670 13.05 13.01 10.692 3.59224 5.03224 32.17 1489.08 1024.682 13.35 13.30 10.655 3.59011 5.03454 32.18 1488.97 1024.699 13.65 13.60 10.631 3.58876 5.03598 32.18 1488.90 1024.710 13.95 13.90 10.597 3.58720 5.03866 32.20 1488.80 1024.729 14.25 14.20 10.526 3.58659 5.04779 32.26 1488.62 1024.786 14.55 14.50 10.501 3.57942 5.04133 32.21 1488.47 1024.753 14.85 14.80 10.464 3.57509 5.04041 32.19 1488.33 1024.752 15.15 15.09 10.412 3.57325 5.04520 32.22 1488.18 1024.784 15.45 15.39 10.374 3.57261 5.04983 32.25 1488.08 1024.813 15.75 15.69 10.354 3.57000 5.04900 32.24 1488.01 1024.812 16.05 15.99 10.335 3.56724 5.04777 32.23 1487.93 1024.807 16.35 16.29 10.297 3.56540 5.05058 32.25 1487.82 1024.827 16.65 16.59 10.274 3.56503 5.05341 32.26 1487.76 1024.845 16.95 16.89 10.244 3.56350 5.05541 32.27 1487.67 1024.860 17.25 17.18 10.225 3.56125 5.05506 32.27 1487.60 1024.860 17.55 17.48 10.182 3.55824 5.05686 32.27 1487.46 1024.874 17.85 17.78 10.144 3.55945 5.06408 32.32 1487.38 1024.918 18.15 18.08 10.120 3.55658 5.06341 32.31 1487.29 1024.917 18.45 18.38 10.041 3.54905 5.06410 32.31 1487.01 1024.927 18.75 18.68 9.985 3.54327 5.06405 32.30 1486.80 1024.932 19.05 18.97 9.939 3.54229 5.06919 32.33 1486.68 1024.964 19.35 19.27 9.911 3.54113 5.07163 32.34 1486.59 1024.981 19.65 19.57 9.893 3.54041 5.07330 32.35 1486.54 1024.993 19.95 19.87 9.874 3.53968 5.07488 32.36 1486.49 1025.004 20.25 20.17 9.856 3.54068 5.07900 32.39 1486.46 1025.029 20.55 20.47 9.848 3.53879 5.07744 32.38 1486.43 1025.022 20.85 20.76 9.842 3.53789 5.07707 32.37 1486.40 1025.021 21.15 21.06 9.829 3.53766 5.07869 32.38 1486.37 1025.033 21.45 21.36 9.817 3.53706 5.07951 32.39 1486.34 1025.039 21.75 21.66 9.811 3.53691 5.08012 32.39 1486.33 1025.044 22.05 21.96 9.799 3.53657 5.08136 32.40 1486.30 1025.053 22.35 22.26 9.788 3.53659 5.08303 32.41 1486.27 1025.064 22.65 22.55 9.781 3.53474 5.08143 32.39 1486.24 1025.057 22.95 22.85 9.765 3.53413 5.08285 32.40 1486.19 1025.067 23.25 23.15 9.754 3.53338 5.08346 32.40 1486.16 1025.072 23.55 23.45 9.739 3.53273 5.08463 32.41 1486.12 1025.081 23.85 23.75 9.729 3.53187 5.08492 32.41 1486.09 1025.084 24.15 24.05 9.722 3.53193 5.08599 32.42 1486.08 1025.092 24.45 24.34 9.673 3.53084 5.09167 32.45 1485.94 1025.127 24.75 24.64 9.629 3.52760 5.09340 32.46 1485.80 1025.140 25.05 24.94 9.616 3.52406 5.09027 32.43 1485.72 1025.125 25.35 25.24 9.583 3.52162 5.09160 32.44 1485.61 1025.135 25.65 25.54 9.557 3.52113 5.09461 32.46 1485.55 1025.155 25.95 25.84 9.529 3.52063 5.09803 32.48 1485.47 1025.176 26.25 26.13 9.506 3.51971 5.10011 32.49 1485.41 1025.190 26.55 26.43 9.499 3.51945 5.10076 32.49 1485.39 1025.196 26.85 26.73 9.491 3.51945 5.10202 32.50 1485.37 1025.204 27.15 27.03 9.478 3.51955 5.10409 32.51 1485.35 1025.218 27.45 27.33 9.473 3.51892 5.10390 32.51 1485.33 1025.218 27.75 27.63 9.461 3.51877 5.10541 32.52 1485.31 1025.228 28.05 27.92 9.455 3.51844 5.10591 32.52 1485.29 1025.233 28.35 28.22 9.453 3.51820 5.10573 32.52 1485.29 1025.233 28.65 28.52 9.447 3.51799 5.10636 32.52 1485.27 1025.238 28.95 28.82 9.439 3.51711 5.10631 32.52 1485.25 1025.240 29.25 29.12 9.431 3.51698 5.10723 32.53 1485.23 1025.246 29.55 29.41 9.419 3.51634 5.10808 32.53 1485.20 1025.253 29.85 29.71 9.414 3.51597 5.10829 32.53 1485.18 1025.255 30.15 30.01 9.396 3.51617 5.11123 32.55 1485.15 1025.274 30.45 30.31 9.396 3.51535 5.11004 32.54 1485.14 1025.269 30.75 30.61 9.388 3.51409 5.10941 32.53 1485.11 1025.267 31.05 30.91 9.378 3.51401 5.11085 32.54 1485.08 1025.276 31.35 31.20 9.360 3.51363 5.11300 32.55 1485.04 1025.290 31.65 31.50 9.352 3.51290 5.11317 32.55 1485.01 1025.293 31.95 31.80 9.360 3.51264 5.11148 32.54 1485.04 1025.285 32.25 32.10 9.343 3.51168 5.11272 32.55 1484.98 1025.293 32.55 32.40 9.315 3.51044 5.11503 32.56 1484.90 1025.309 32.85 32.70 9.296 3.50972 5.11679 32.57 1484.85 1025.321 33.15 32.99 9.288 3.50966 5.11785 32.58 1484.83 1025.328 33.45 33.29 9.284 3.50992 5.11890 32.58 1484.83 1025.336 33.75 33.59 9.287 3.50950 5.11786 32.58 1484.84 1025.331 34.05 33.89 9.286 3.50996 5.11863 32.58 1484.85 1025.336 34.35 34.19 9.293 3.51024 5.11803 32.58 1484.87 1025.334 34.65 34.49 9.287 3.50936 5.11768 32.58 1484.85 1025.334 34.95 34.78 9.284 3.50958 5.11833 32.58 1484.85 1025.339 35.25 35.08 9.270 3.50985 5.12083 32.60 1484.82 1025.354 35.55 35.38 9.286 3.51009 5.11879 32.58 1484.87 1025.344 35.85 35.68 9.279 3.50955 5.11913 32.58 1484.85 1025.347 36.15 35.98 9.269 3.50902 5.11980 32.59 1484.82 1025.353 36.45 36.27 9.260 3.50906 5.12118 32.60 1484.81 1025.362 36.75 36.57 9.253 3.50837 5.12131 32.60 1484.78 1025.364 37.05 36.87 9.242 3.50806 5.12240 32.60 1484.76 1025.372 37.35 37.17 9.232 3.50695 5.12227 32.60 1484.72 1025.373 37.65 37.47 9.228 3.50602 5.12155 32.59 1484.71 1025.370 37.95 37.77 9.209 3.50493 5.12279 32.60 1484.65 1025.379 38.25 38.06 9.193 3.50446 5.12447 32.61 1484.61 1025.391 38.55 38.36 9.181 3.50211 5.12284 32.60 1484.55 1025.383 38.85 38.66 9.152 3.50078 5.12528 32.61 1484.46 1025.399 39.15 38.96 9.131 3.49968 5.12689 32.62 1484.40 1025.411 39.45 39.26 9.113 3.49989 5.12986 32.63 1484.36 1025.429 39.75 39.56 9.092 3.49927 5.13214 32.65 1484.30 1025.444 40.05 39.85 9.083 3.50091 5.13591 32.67 1484.30 1025.466 40.35 40.15 9.096 3.50009 5.13267 32.65 1484.33 1025.449 40.65 40.45 9.082 3.49762 5.13122 32.64 1484.27 1025.443 40.95 40.75 9.063 3.49789 5.13446 32.66 1484.23 1025.463 41.25 41.05 9.049 3.49830 5.13714 32.68 1484.20 1025.479 41.60 41.40 9.057 3.49896 5.13696 32.68 1484.24 1025.480