*2026/01/16 09:57:52.04 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/12 20:14:52.000 END TIME : UTC 2024/06/12 20:15:03.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 56 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 16.62 2 Depth metres 0.15 16.61 3 Temperature 'deg C (ITS90)' 10.008 15.663 4 Conductivity S/m 1.91226 3.52333 5 Conductance:Specific S/m 2.35165 5.00633 6 Salinity PSS-78 14.12 31.9 7 Speed:Sound m/s 1484.67 1490.73 8 Density kg/m^3 1009.822 1024.602 $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 : 154 LATITUDE : 49 3.25740 N ! (deg min) LONGITUDE : 124 50.40720 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240612_201452 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 56 56 MERGEHDR 1.3 2026/01/16 09:53:54 56 56 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:18 56 56 CALIB 12.1 2026/01/16 09:56:51 56 56 CLEAN 5.3 2026/01/16 09:57:52 56 56 $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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 15.658 1.91226 2.35165 14.12 1484.67 1009.822 0.45 0.45 15.649 1.91379 2.35407 14.14 1484.67 1009.837 0.75 0.76 15.663 1.91313 2.35240 14.13 1484.71 1009.828 1.05 1.06 15.663 1.91322 2.35251 14.13 1484.71 1009.829 1.35 1.36 15.643 1.91570 2.35675 14.16 1484.68 1009.855 1.65 1.67 15.609 1.93718 2.38518 14.34 1484.79 1010.005 1.95 1.97 15.633 1.95165 2.40154 14.45 1485.00 1010.084 2.25 2.27 15.594 1.99954 2.46288 14.85 1485.33 1010.400 2.55 2.57 15.533 2.05206 2.53136 15.30 1485.66 1010.757 2.85 2.88 15.494 2.08289 2.57184 15.57 1485.84 1010.969 3.15 3.18 15.465 2.14799 2.65414 16.11 1486.38 1011.392 3.45 3.48 15.259 2.28342 2.83594 17.32 1487.09 1012.354 3.75 3.78 14.943 2.58678 3.23812 20.01 1489.16 1014.480 4.05 4.08 14.779 2.64230 3.32126 20.57 1489.27 1014.941 4.35 4.39 14.590 2.69453 3.40303 21.12 1489.28 1015.399 4.65 4.69 14.478 2.73803 3.46781 21.56 1489.42 1015.757 4.95 4.99 14.343 2.75418 3.50019 21.77 1489.23 1015.949 5.25 5.29 14.052 2.82602 3.61828 22.56 1489.18 1016.616 5.55 5.59 13.417 3.05672 3.97834 25.01 1489.90 1018.620 5.85 5.89 12.521 3.34629 4.45918 28.30 1490.73 1021.328 6.15 6.19 12.047 3.43675 4.63835 29.52 1490.55 1022.360 6.45 6.49 11.769 3.46866 4.71686 30.05 1490.22 1022.820 6.75 6.79 11.562 3.49114 4.77431 30.44 1489.96 1023.157 7.05 7.08 11.331 3.51093 4.83183 30.82 1489.62 1023.497 7.35 7.38 11.104 3.51926 4.87383 31.09 1489.15 1023.750 7.65 7.68 10.999 3.52288 4.89297 31.22 1488.94 1023.866 7.95 7.98 10.876 3.52333 4.91039 31.33 1488.64 1023.973 8.25 8.28 10.824 3.52290 4.91690 31.37 1488.50 1024.015 8.55 8.58 10.737 3.52252 4.92843 31.44 1488.28 1024.087 8.85 8.88 10.676 3.51969 4.93288 31.46 1488.10 1024.117 9.15 9.18 10.637 3.51840 4.93643 31.48 1487.99 1024.141 9.45 9.47 10.610 3.51727 4.93862 31.49 1487.91 1024.156 9.75 9.77 10.595 3.51758 4.94116 31.51 1487.89 1024.173 10.05 10.07 10.572 3.51878 4.94600 31.54 1487.85 1024.203 10.35 10.37 10.546 3.51906 4.95006 31.57 1487.79 1024.228 10.65 10.67 10.517 3.51866 4.95346 31.59 1487.72 1024.250 10.95 10.97 10.503 3.51793 4.95440 31.59 1487.68 1024.258 11.25 11.27 10.484 3.51877 4.95822 31.62 1487.64 1024.282 11.55 11.56 10.439 3.51944 4.96544 31.66 1487.54 1024.326 11.85 11.86 10.438 3.51747 4.96279 31.64 1487.52 1024.313 12.15 12.16 10.396 3.51710 4.96817 31.68 1487.42 1024.347 12.45 12.46 10.382 3.51591 4.96855 31.68 1487.37 1024.351 12.75 12.76 10.350 3.51593 4.97306 31.70 1487.29 1024.380 13.05 13.06 10.286 3.51419 4.97965 31.74 1487.11 1024.422 13.35 13.36 10.213 3.51127 4.98572 31.78 1486.90 1024.462 13.65 13.65 10.182 3.50850 4.98621 31.78 1486.79 1024.468 13.95 13.95 10.115 3.50816 4.99520 31.83 1486.62 1024.523 14.25 14.25 10.083 3.50781 4.99931 31.86 1486.54 1024.549 14.55 14.55 10.049 3.50700 5.00306 31.88 1486.45 1024.573 14.85 14.85 10.045 3.50558 5.00161 31.87 1486.42 1024.567 15.15 15.15 10.048 3.50671 5.00274 31.88 1486.45 1024.574 15.45 15.44 10.029 3.50632 5.00482 31.89 1486.40 1024.588 15.75 15.74 10.022 3.50563 5.00487 31.89 1486.38 1024.590 16.05 16.04 10.021 3.50464 5.00370 31.88 1486.37 1024.585 16.35 16.34 10.008 3.50516 5.00626 31.89 1486.35 1024.601 16.62 16.61 10.016 3.50606 5.00633 31.90 1486.39 1024.602