*2026/01/16 09:57:47.14 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/30 18:01:08.000 END TIME : UTC 2024/01/30 18:01:18.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 52 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.47 2 Depth metres 0.15 15.44 3 Temperature 'deg C (ITS90)' 8.433 9.554 4 Conductivity S/m 1.87083 3.35758 5 Conductance:Specific S/m 2.79648 4.86586 6 Salinity PSS-78 16.72 30.84 7 Speed:Sound m/s 1461.7 1483.22 8 Density kg/m^3 1012.908 1023.855 $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 : 17 LATITUDE : 49 37.69930 N ! (deg min) LONGITUDE : 126 29.44370 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240130_180108 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 52 52 MERGEHDR 1.3 2026/01/16 09:53:44 52 52 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 52 52 CALIB 12.1 2026/01/16 09:56:45 52 52 CLEAN 5.3 2026/01/16 09:57:47 52 52 $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 8.433 1.88769 2.82308 16.89 1461.84 1013.042 0.45 0.45 8.450 1.87083 2.79648 16.72 1461.70 1012.908 0.75 0.75 8.452 1.88117 2.81174 16.82 1461.83 1012.986 1.05 1.06 8.457 1.87781 2.80631 16.78 1461.81 1012.960 1.35 1.36 8.475 1.88754 2.81929 16.87 1462.00 1013.026 1.65 1.66 8.510 1.92762 2.87623 17.24 1462.59 1013.316 1.95 1.96 8.629 2.07907 3.09120 18.66 1464.80 1014.411 2.25 2.26 8.805 2.18780 3.23589 19.63 1466.68 1015.149 2.55 2.56 8.893 2.29600 3.38715 20.65 1468.26 1015.930 2.85 2.87 8.925 2.34879 3.46178 21.15 1469.00 1016.318 3.15 3.17 8.957 2.46881 3.63522 22.31 1470.56 1017.226 3.45 3.47 9.021 2.60176 3.82371 23.59 1472.37 1018.217 3.75 3.77 9.074 2.68108 3.93422 24.35 1473.50 1018.801 4.05 4.07 9.107 2.71976 3.98711 24.71 1474.07 1019.081 4.35 4.37 9.148 2.80397 4.10558 25.53 1475.22 1019.712 4.65 4.67 9.167 2.86971 4.19950 26.17 1476.09 1020.214 4.95 4.97 9.184 2.90470 4.24861 26.51 1476.57 1020.478 5.25 5.27 9.217 2.99890 4.38222 27.44 1477.83 1021.196 5.55 5.57 9.269 3.12349 4.55730 28.66 1479.52 1022.142 5.85 5.86 9.314 3.17364 4.62440 29.13 1480.27 1022.506 6.15 6.16 9.327 3.20470 4.66786 29.43 1480.69 1022.743 6.45 6.46 9.335 3.22181 4.69176 29.60 1480.93 1022.874 6.75 6.76 9.355 3.24859 4.72798 29.86 1481.32 1023.072 7.05 7.06 9.383 3.27542 4.76317 30.11 1481.73 1023.264 7.35 7.36 9.417 3.30175 4.79664 30.35 1482.16 1023.446 7.65 7.66 9.433 3.31013 4.80657 30.42 1482.31 1023.501 7.95 7.96 9.449 3.30852 4.80201 30.39 1482.34 1023.476 8.25 8.26 9.456 3.30993 4.80312 30.40 1482.38 1023.483 8.55 8.55 9.463 3.31182 4.80494 30.41 1482.42 1023.494 8.85 8.85 9.481 3.31366 4.80502 30.41 1482.50 1023.495 9.15 9.15 9.494 3.31966 4.81195 30.46 1482.61 1023.533 9.45 9.45 9.502 3.32508 4.81870 30.51 1482.70 1023.571 9.75 9.75 9.529 3.33137 4.82406 30.55 1482.86 1023.600 10.05 10.05 9.545 3.33642 4.82906 30.59 1482.97 1023.628 10.35 10.35 9.550 3.33866 4.83159 30.61 1483.01 1023.643 10.65 10.65 9.550 3.33704 4.82931 30.59 1483.00 1023.632 10.95 10.94 9.552 3.33791 4.83024 30.60 1483.02 1023.638 11.25 11.24 9.554 3.33854 4.83095 30.60 1483.04 1023.643 11.55 11.54 9.554 3.33841 4.83074 30.60 1483.04 1023.643 11.85 11.84 9.548 3.34353 4.83897 30.66 1483.09 1023.690 12.15 12.14 9.546 3.34709 4.84441 30.70 1483.14 1023.721 12.45 12.44 9.546 3.34784 4.84544 30.70 1483.15 1023.728 12.75 12.74 9.543 3.34826 4.84648 30.71 1483.15 1023.735 13.05 13.04 9.539 3.35011 4.84979 30.73 1483.17 1023.755 13.35 13.33 9.533 3.35024 4.85079 30.74 1483.16 1023.762 13.65 13.63 9.527 3.35295 4.85554 30.77 1483.18 1023.790 13.95 13.93 9.522 3.35586 4.86044 30.80 1483.21 1023.818 14.25 14.23 9.515 3.35758 4.86396 30.83 1483.22 1023.839 14.55 14.53 9.486 3.35577 4.86538 30.83 1483.12 1023.850 14.85 14.83 9.479 3.35537 4.86586 30.84 1483.10 1023.854 15.15 15.13 9.469 3.35307 4.86388 30.82 1483.06 1023.845 15.47 15.44 9.465 3.35371 4.86544 30.83 1483.06 1023.855