*2026/01/16 10:37:57.19 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 16:01:06.000 END TIME : UTC 2025/06/26 16:01:22.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 81 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.15 2 Depth metres 0.15 24.05 3 Temperature 'deg C (ITS90)' 9.748 14.635 4 Conductivity S/m 3.42193 3.74657 5 Conductance:Specific S/m 4.72307 4.97581 6 Salinity PSS-78 30.33 31.64 7 Speed:Sound m/s 1484.8 1500.11 8 Density kg/m^3 1022.478 1024.481 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 201 LATITUDE : 48 54.60050 N ! (deg min) LONGITUDE : 125 20.37030 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_160106 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 81 81 MERGEHDR 1.3 2026/01/16 10:35:47 81 81 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 81 81 CALIB 12.1 2026/01/16 10:37:20 81 81 CLEAN 5.3 2026/01/16 10:37:57 81 81 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 10:37:42 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 14.635 3.74657 4.72635 30.36 1500.11 1022.478 0.45 0.45 14.528 3.73536 4.72491 30.34 1499.75 1022.487 0.75 0.75 14.491 3.73050 4.72327 30.33 1499.61 1022.485 1.05 1.05 14.476 3.72898 4.72307 30.33 1499.57 1022.488 1.35 1.35 14.463 3.73021 4.72622 30.35 1499.55 1022.508 1.65 1.65 14.454 3.73557 4.73402 30.40 1499.60 1022.554 1.95 1.94 14.439 3.73366 4.73340 30.40 1499.54 1022.554 2.25 2.24 14.427 3.73454 4.73605 30.42 1499.53 1022.572 2.55 2.54 14.404 3.73448 4.73875 30.43 1499.48 1022.591 2.85 2.84 14.371 3.73079 4.73795 30.43 1499.37 1022.593 3.15 3.14 14.306 3.72648 4.74028 30.44 1499.18 1022.617 3.45 3.44 14.258 3.71978 4.73757 30.41 1499.00 1022.610 3.75 3.74 14.193 3.71130 4.73465 30.39 1498.76 1022.605 4.05 4.04 14.104 3.70597 4.73863 30.41 1498.50 1022.641 4.35 4.34 14.015 3.70395 4.74686 30.46 1498.27 1022.700 4.65 4.64 13.886 3.70023 4.75784 30.53 1497.93 1022.780 4.95 4.93 13.747 3.69667 4.77027 30.61 1497.57 1022.869 5.25 5.23 13.688 3.68413 4.76130 30.54 1497.30 1022.829 5.55 5.53 13.654 3.67447 4.75307 30.48 1497.12 1022.790 5.85 5.83 13.623 3.67080 4.75212 30.47 1497.01 1022.790 6.15 6.13 13.591 3.66690 4.75102 30.46 1496.89 1022.789 6.45 6.43 13.492 3.66559 4.76146 30.52 1496.65 1022.861 6.75 6.73 13.412 3.66345 4.76859 30.57 1496.44 1022.913 7.05 7.03 13.356 3.66300 4.77505 30.61 1496.30 1022.957 7.35 7.33 13.307 3.66203 4.77979 30.64 1496.18 1022.990 7.65 7.63 13.187 3.65397 4.78426 30.66 1495.81 1023.032 7.95 7.92 12.953 3.62881 4.78064 30.61 1494.97 1023.043 8.25 8.22 12.784 3.62084 4.79154 30.68 1494.48 1023.125 8.55 8.52 12.593 3.60362 4.79296 30.67 1493.83 1023.156 8.85 8.82 12.415 3.59413 4.80300 30.72 1493.29 1023.233 9.15 9.12 12.283 3.58854 4.81262 30.78 1492.91 1023.303 9.45 9.42 12.161 3.58693 4.82621 30.86 1492.60 1023.392 9.75 9.72 12.077 3.58105 4.82922 30.88 1492.33 1023.419 10.05 10.02 12.032 3.57965 4.83323 30.90 1492.20 1023.447 10.35 10.32 11.994 3.57748 4.83528 30.91 1492.09 1023.464 10.65 10.61 11.958 3.57760 4.84006 30.94 1492.01 1023.495 10.95 10.91 11.937 3.57671 4.84167 30.95 1491.95 1023.508 11.25 11.21 11.923 3.57722 4.84422 30.97 1491.93 1023.524 11.55 11.51 11.906 3.57671 4.84569 30.98 1491.88 1023.535 11.85 11.81 11.877 3.57681 4.84970 31.00 1491.82 1023.562 12.15 12.11 11.839 3.57278 4.84922 30.99 1491.68 1023.564 12.45 12.41 11.775 3.57164 4.85606 31.04 1491.52 1023.610 12.75 12.71 11.689 3.56506 4.85844 31.04 1491.23 1023.633 13.05 13.00 11.618 3.55887 4.85948 31.04 1490.99 1023.647 13.35 13.30 11.522 3.55244 4.86341 31.06 1490.68 1023.679 13.65 13.60 11.363 3.54390 4.87300 31.11 1490.19 1023.748 13.95 13.90 11.230 3.53298 4.87570 31.12 1489.74 1023.777 14.25 14.20 11.104 3.52533 4.88221 31.15 1489.33 1023.825 14.55 14.50 10.931 3.51162 4.88657 31.16 1488.74 1023.865 14.85 14.80 10.779 3.50471 4.89768 31.22 1488.28 1023.940 15.15 15.10 10.657 3.50144 4.90986 31.29 1487.94 1024.018 15.45 15.39 10.540 3.49296 4.91414 31.31 1487.54 1024.052 15.75 15.69 10.475 3.48745 4.91530 31.31 1487.32 1024.065 16.05 15.99 10.412 3.48197 4.91632 31.31 1487.09 1024.076 16.35 16.29 10.340 3.47861 4.92165 31.34 1486.87 1024.112 16.65 16.59 10.276 3.47803 4.92972 31.39 1486.71 1024.163 16.95 16.89 10.204 3.47619 4.93721 31.43 1486.51 1024.210 17.25 17.19 10.155 3.47459 4.94187 31.46 1486.36 1024.240 17.55 17.48 10.114 3.47332 4.94577 31.48 1486.25 1024.266 17.85 17.78 10.086 3.47081 4.94619 31.48 1486.15 1024.271 18.15 18.08 10.062 3.47098 4.94978 31.50 1486.10 1024.294 18.45 18.38 10.031 3.47044 4.95339 31.52 1486.02 1024.317 18.75 18.68 9.999 3.46892 4.95575 31.54 1485.92 1024.333 19.05 18.98 9.969 3.46680 4.95703 31.54 1485.82 1024.344 19.35 19.28 9.949 3.46714 4.96034 31.56 1485.78 1024.365 19.65 19.57 9.927 3.46700 4.96315 31.58 1485.73 1024.383 19.95 19.87 9.910 3.46656 4.96499 31.59 1485.68 1024.395 20.25 20.17 9.901 3.46515 4.96426 31.58 1485.65 1024.393 20.55 20.47 9.896 3.46487 4.96458 31.58 1485.63 1024.396 20.85 20.77 9.883 3.46457 4.96596 31.59 1485.60 1024.406 21.15 21.07 9.870 3.46330 4.96608 31.59 1485.56 1024.409 21.45 21.37 9.869 3.46401 4.96723 31.60 1485.57 1024.416 21.75 21.66 9.879 3.46352 4.96510 31.58 1485.59 1024.405 22.05 21.96 9.873 3.46303 4.96520 31.58 1485.58 1024.407 22.35 22.26 9.861 3.46292 4.96671 31.59 1485.55 1024.418 22.65 22.56 9.856 3.46249 4.96681 31.59 1485.54 1024.420 22.95 22.86 9.846 3.46160 4.96701 31.59 1485.50 1024.423 23.25 23.16 9.830 3.46194 4.96976 31.61 1485.47 1024.440 23.55 23.46 9.822 3.46101 4.96962 31.61 1485.44 1024.441 23.85 23.75 9.748 3.45800 4.97581 31.64 1485.22 1024.481 24.15 24.05 9.757 3.42193 4.92263 31.27 1484.80 1024.189