*2026/01/16 09:57:50.69 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/05/22 00:30:21.000 END TIME : UTC 2024/05/22 00:30:39.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 92 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.47 2 Depth metres 0.15 27.36 3 Temperature 'deg C (ITS90)' 9.333 15.008 4 Conductivity S/m 3.45132 3.60842 5 Conductance:Specific S/m 4.314 5.05746 6 Salinity PSS-78 27.46 32.16 7 Speed:Sound m/s 1484.39 1497.94 8 Density kg/m^3 1020.168 1024.967 $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 : 124 LATITUDE : 48 56.29160 N ! (deg min) LONGITUDE : 125 5.49980 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240522_003021 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:00 92 92 MERGEHDR 1.3 2026/01/16 09:53:52 92 92 HDREDIT2 3.2 2026/01/16 09:55:06 ? ? REMOVECH 8.2 2026/01/16 09:56:17 92 92 CALIB 12.1 2026/01/16 09:56:50 92 92 CLEAN 5.3 2026/01/16 09:57:50 92 92 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:06 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 09:56:17 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:50 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 15.008 3.45190 4.31400 27.46 1497.94 1020.168 0.45 0.45 15.003 3.45167 4.31426 27.46 1497.93 1020.171 0.75 0.75 14.971 3.45132 4.31726 27.48 1497.85 1020.194 1.05 1.05 14.919 3.45402 4.32629 27.54 1497.76 1020.253 1.35 1.35 14.877 3.45501 4.33209 27.58 1497.67 1020.292 1.65 1.65 14.845 3.45556 4.33630 27.61 1497.61 1020.321 1.95 1.95 14.820 3.45816 4.34228 27.65 1497.58 1020.359 2.25 2.25 14.811 3.45966 4.34512 27.67 1497.58 1020.377 2.55 2.55 14.784 3.46249 4.35164 27.71 1497.54 1020.418 2.85 2.85 14.762 3.46381 4.35573 27.74 1497.51 1020.445 3.15 3.15 14.741 3.46678 4.36171 27.78 1497.49 1020.482 3.45 3.45 14.732 3.47026 4.36711 27.82 1497.51 1020.514 3.75 3.75 14.715 3.47616 4.37638 27.88 1497.54 1020.568 4.05 4.05 14.697 3.48137 4.38497 27.94 1497.55 1020.619 4.35 4.35 14.685 3.48412 4.38966 27.97 1497.56 1020.647 4.65 4.65 14.678 3.48699 4.39407 28.00 1497.58 1020.673 4.95 4.95 14.670 3.49267 4.40218 28.06 1497.62 1020.720 5.25 5.24 14.656 3.50026 4.41323 28.14 1497.67 1020.784 5.55 5.54 14.624 3.50660 4.42482 28.22 1497.66 1020.853 5.85 5.84 14.505 3.52210 4.45779 28.44 1497.54 1021.052 6.15 6.14 14.460 3.53059 4.47363 28.55 1497.53 1021.146 6.45 6.44 14.373 3.53563 4.48990 28.66 1497.38 1021.249 6.75 6.74 14.291 3.54095 4.50607 28.77 1497.24 1021.351 7.05 7.04 14.227 3.55228 4.52783 28.92 1497.21 1021.480 7.35 7.34 14.151 3.56030 4.54689 29.05 1497.11 1021.597 7.65 7.64 14.004 3.57292 4.58022 29.27 1496.90 1021.801 7.95 7.94 13.873 3.57982 4.60452 29.44 1496.66 1021.954 8.25 8.24 13.749 3.59193 4.63486 29.64 1496.50 1022.139 8.55 8.54 13.644 3.60066 4.65881 29.80 1496.34 1022.286 8.85 8.84 13.522 3.60818 4.68332 29.97 1496.13 1022.438 9.15 9.14 13.354 3.60842 4.70409 30.10 1495.74 1022.576 9.45 9.44 13.235 3.60431 4.71332 30.16 1495.41 1022.643 9.75 9.73 12.670 3.59244 4.76829 30.50 1493.91 1023.017 10.05 10.03 12.089 3.56804 4.81014 30.74 1492.21 1023.314 10.35 10.33 11.602 3.56174 4.86546 31.09 1490.94 1023.670 10.65 10.63 11.155 3.53966 4.89509 31.25 1489.57 1023.876 10.95 10.93 10.855 3.52916 4.92146 31.40 1488.70 1024.049 11.25 11.23 10.555 3.51802 4.94729 31.55 1487.81 1024.216 11.55 11.53 10.272 3.51107 4.97718 31.72 1487.02 1024.403 11.85 11.83 10.152 3.50796 4.98971 31.80 1486.68 1024.482 12.15 12.12 10.063 3.50696 5.00089 31.87 1486.45 1024.550 12.45 12.42 10.017 3.50433 5.00373 31.88 1486.30 1024.570 12.75 12.72 9.988 3.50316 5.00624 31.89 1486.22 1024.587 13.05 13.02 9.962 3.50191 5.00818 31.90 1486.14 1024.601 13.35 13.32 9.943 3.50216 5.01123 31.92 1486.10 1024.620 13.65 13.62 9.921 3.50156 5.01357 31.94 1486.04 1024.636 13.95 13.91 9.875 3.49719 5.01388 31.93 1485.87 1024.641 14.25 14.21 9.839 3.49251 5.01234 31.92 1485.73 1024.636 14.55 14.51 9.780 3.48963 5.01670 31.94 1485.55 1024.665 14.85 14.81 9.713 3.49066 5.02784 32.01 1485.39 1024.732 15.15 15.11 9.645 3.48885 5.03508 32.05 1485.20 1024.777 15.45 15.41 9.625 3.48566 5.03347 32.04 1485.11 1024.771 15.75 15.71 9.585 3.48392 5.03679 32.05 1484.99 1024.792 16.05 16.00 9.560 3.48361 5.03993 32.07 1484.93 1024.812 16.35 16.30 9.533 3.48233 5.04206 32.08 1484.85 1024.827 16.65 16.60 9.509 3.48094 5.04355 32.09 1484.78 1024.837 16.95 16.90 9.487 3.47929 5.04433 32.09 1484.71 1024.844 17.25 17.20 9.479 3.47941 5.04568 32.10 1484.69 1024.853 17.55 17.50 9.481 3.47936 5.04539 32.10 1484.70 1024.853 17.85 17.79 9.477 3.47914 5.04566 32.10 1484.69 1024.856 18.15 18.09 9.475 3.47908 5.04580 32.10 1484.69 1024.858 18.45 18.39 9.476 3.47968 5.04648 32.11 1484.71 1024.863 18.75 18.69 9.482 3.47933 5.04515 32.10 1484.72 1024.857 19.05 18.99 9.481 3.47928 5.04525 32.10 1484.72 1024.858 19.35 19.29 9.480 3.48036 5.04694 32.11 1484.74 1024.869 19.65 19.58 9.481 3.48081 5.04744 32.11 1484.75 1024.873 19.95 19.88 9.478 3.48153 5.04889 32.12 1484.76 1024.882 20.25 20.18 9.479 3.48153 5.04880 32.12 1484.76 1024.883 20.55 20.48 9.482 3.48091 5.04749 32.11 1484.77 1024.877 20.85 20.78 9.482 3.48140 5.04817 32.12 1484.78 1024.882 21.15 21.08 9.476 3.48104 5.04847 32.12 1484.77 1024.885 21.45 21.37 9.469 3.48057 5.04886 32.12 1484.75 1024.889 21.75 21.67 9.450 3.47926 5.04970 32.12 1484.69 1024.896 22.05 21.97 9.429 3.47880 5.05217 32.14 1484.63 1024.912 22.35 22.27 9.412 3.47637 5.05103 32.13 1484.56 1024.908 22.65 22.57 9.397 3.47464 5.05072 32.12 1484.51 1024.908 22.95 22.87 9.378 3.47422 5.05296 32.14 1484.46 1024.923 23.25 23.17 9.368 3.47417 5.05444 32.15 1484.43 1024.933 23.55 23.46 9.362 3.47420 5.05527 32.15 1484.42 1024.939 23.85 23.76 9.361 3.47459 5.05595 32.16 1484.43 1024.944 24.15 24.06 9.362 3.47456 5.05587 32.15 1484.44 1024.944 24.45 24.36 9.364 3.47507 5.05627 32.16 1484.45 1024.948 24.75 24.66 9.367 3.47397 5.05424 32.14 1484.45 1024.938 25.05 24.96 9.367 3.47423 5.05467 32.15 1484.46 1024.941 25.35 25.25 9.361 3.47371 5.05472 32.15 1484.44 1024.943 25.65 25.55 9.353 3.47374 5.05593 32.15 1484.43 1024.952 25.95 25.85 9.343 3.47304 5.05633 32.15 1484.40 1024.956 26.25 26.15 9.340 3.47259 5.05615 32.15 1484.39 1024.956 26.55 26.45 9.340 3.47232 5.05584 32.15 1484.39 1024.956 26.85 26.75 9.339 3.47295 5.05690 32.16 1484.40 1024.963 27.15 27.04 9.333 3.47277 5.05746 32.16 1484.39 1024.967 27.47 27.36 9.338 3.47259 5.05650 32.15 1484.40 1024.963