*2026/01/16 09:57:47.12 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/11 23:44:06.000 END TIME : UTC 2024/01/11 23:44:20.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 72 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.51 2 Depth metres 0.15 21.45 3 Temperature 'deg C (ITS90)' 7.413 10.604 4 Conductivity S/m 1.92857 3.40712 5 Conductance:Specific S/m 2.97504 4.79028 6 Salinity PSS-78 17.8 30.44 7 Speed:Sound m/s 1458.9 1486.73 8 Density kg/m^3 1013.863 1023.394 $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 : 16 LATITUDE : 48 57.45800 N ! (deg min) LONGITUDE : 125 1.99660 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240111_234406 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 72 72 MERGEHDR 1.3 2026/01/16 09:53:44 72 72 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 72 72 CALIB 12.1 2026/01/16 09:56:45 72 72 CLEAN 5.3 2026/01/16 09:57:47 72 72 $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 7.413 1.92857 2.97504 17.80 1458.90 1013.863 0.45 0.45 7.870 2.11107 3.21126 19.39 1462.69 1015.060 0.75 0.75 8.312 2.27935 3.42119 20.82 1466.20 1016.130 1.05 1.05 8.344 2.43719 3.65464 22.39 1468.25 1017.350 1.35 1.35 8.502 2.49141 3.71830 22.83 1469.41 1017.679 1.65 1.66 8.677 2.53595 3.76515 23.16 1470.50 1017.918 1.95 1.96 8.852 2.58983 3.82524 23.59 1471.69 1018.228 2.25 2.26 8.975 2.65946 3.91383 24.20 1472.92 1018.691 2.55 2.56 9.102 2.71466 3.98020 24.67 1473.97 1019.038 2.85 2.86 9.355 2.84601 4.14204 25.80 1476.31 1019.888 3.15 3.16 9.457 2.89676 4.20348 26.23 1477.22 1020.212 3.45 3.46 9.466 2.99402 4.34339 27.20 1478.44 1020.965 3.75 3.75 9.608 3.07218 4.43858 27.87 1479.79 1021.472 4.05 4.05 9.756 3.07489 4.42359 27.79 1480.23 1021.383 4.35 4.35 9.811 3.11184 4.46962 28.11 1480.84 1021.629 4.65 4.65 9.855 3.12894 4.48845 28.25 1481.17 1021.730 4.95 4.95 9.931 3.15378 4.51432 28.44 1481.68 1021.866 5.25 5.25 10.001 3.15492 4.50695 28.39 1481.89 1021.823 5.55 5.55 10.043 3.16811 4.52026 28.49 1482.17 1021.893 5.85 5.85 10.043 3.19339 4.55645 28.74 1482.48 1022.091 6.15 6.15 10.075 3.21453 4.58233 28.93 1482.83 1022.231 6.45 6.45 10.162 3.23427 4.59913 29.05 1483.30 1022.317 6.75 6.75 10.240 3.25314 4.61565 29.18 1483.74 1022.403 7.05 7.05 10.228 3.27408 4.64692 29.40 1483.97 1022.576 7.35 7.35 10.247 3.28338 4.65773 29.47 1484.13 1022.634 7.65 7.64 10.282 3.31622 4.69955 29.77 1484.62 1022.861 7.95 7.94 10.361 3.32042 4.69509 29.75 1484.89 1022.833 8.25 8.24 10.390 3.32457 4.69699 29.76 1485.02 1022.842 8.55 8.54 10.404 3.32656 4.69802 29.77 1485.08 1022.848 8.85 8.84 10.417 3.32482 4.69385 29.75 1485.10 1022.825 9.15 9.14 10.425 3.32537 4.69360 29.74 1485.13 1022.825 9.45 9.44 10.419 3.32531 4.69429 29.75 1485.12 1022.830 9.75 9.74 10.437 3.32936 4.69755 29.77 1485.22 1022.848 10.05 10.04 10.457 3.33375 4.70115 29.80 1485.33 1022.867 10.35 10.34 10.450 3.33473 4.70337 29.82 1485.33 1022.881 10.65 10.63 10.434 3.33796 4.71015 29.86 1485.33 1022.921 10.95 10.93 10.431 3.34173 4.71582 29.90 1485.37 1022.953 11.25 11.23 10.460 3.34484 4.71633 29.91 1485.49 1022.955 11.55 11.53 10.487 3.35378 4.72530 29.97 1485.67 1023.003 11.85 11.83 10.504 3.35869 4.73000 30.01 1485.78 1023.029 12.15 12.13 10.508 3.36150 4.73339 30.03 1485.83 1023.049 12.45 12.43 10.520 3.36576 4.73785 30.06 1485.92 1023.073 12.75 12.73 10.532 3.36861 4.74025 30.08 1485.99 1023.087 13.05 13.03 10.532 3.37028 4.74264 30.10 1486.01 1023.101 13.35 13.33 10.533 3.37349 4.74696 30.13 1486.06 1023.126 13.65 13.62 10.549 3.37920 4.75293 30.17 1486.17 1023.159 13.95 13.92 10.554 3.38035 4.75387 30.18 1486.20 1023.165 14.25 14.22 10.541 3.37930 4.75413 30.18 1486.16 1023.168 14.55 14.52 10.544 3.38262 4.75830 30.21 1486.21 1023.192 14.85 14.82 10.562 3.38585 4.76047 30.23 1486.30 1023.204 15.15 15.12 10.565 3.38719 4.76203 30.24 1486.33 1023.214 15.45 15.42 10.554 3.39518 4.77467 30.33 1486.40 1023.285 15.75 15.72 10.549 3.39503 4.77513 30.33 1486.39 1023.289 16.05 16.01 10.572 3.39744 4.77541 30.33 1486.49 1023.290 16.35 16.31 10.570 3.39704 4.77512 30.33 1486.48 1023.290 16.65 16.61 10.556 3.40071 4.78223 30.38 1486.49 1023.331 16.95 16.91 10.540 3.39949 4.78258 30.38 1486.44 1023.336 17.25 17.21 10.567 3.40145 4.78181 30.38 1486.54 1023.331 17.55 17.51 10.587 3.40480 4.78382 30.39 1486.64 1023.341 17.85 17.81 10.596 3.40516 4.78308 30.39 1486.67 1023.338 18.15 18.11 10.600 3.40571 4.78330 30.39 1486.69 1023.340 18.45 18.41 10.604 3.40621 4.78341 30.39 1486.71 1023.342 18.75 18.70 10.604 3.40712 4.78479 30.40 1486.73 1023.351 19.05 19.00 10.601 3.40677 4.78466 30.40 1486.72 1023.351 19.35 19.30 10.592 3.40419 4.78229 30.38 1486.67 1023.340 19.65 19.60 10.590 3.39850 4.77454 30.33 1486.60 1023.299 19.95 19.90 10.601 3.39824 4.77267 30.32 1486.63 1023.289 20.25 20.20 10.597 3.39701 4.77149 30.31 1486.61 1023.284 20.55 20.50 10.576 3.39492 4.77132 30.30 1486.54 1023.286 20.85 20.80 10.573 3.39725 4.77510 30.33 1486.56 1023.309 21.15 21.10 10.563 3.40710 4.79028 30.44 1486.66 1023.394 21.51 21.45 10.427 3.39243 4.78793 30.40 1486.14 1023.393