*2026/01/16 09:57:53.25 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/11 19:17:26.000 END TIME : UTC 2024/07/11 19:17:36.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 51 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.07 2 Depth metres 0.15 15.01 3 Temperature 'deg C (ITS90)' 10.578 16.938 4 Conductivity S/m 3.5921 3.85106 5 Conductance:Specific S/m 4.49673 5.05281 6 Salinity PSS-78 28.86 32.3 7 Speed:Sound m/s 1488.86 1505.75 8 Density kg/m^3 1020.834 1024.812 $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 : 186 LATITUDE : 49 35.69480 N ! (deg min) LONGITUDE : 126 36.81110 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240711_191726 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 51 51 MERGEHDR 1.3 2026/01/16 09:53:58 51 51 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:20 51 51 CALIB 12.1 2026/01/16 09:56:52 51 51 CLEAN 5.3 2026/01/16 09:57:53 51 51 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:08 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 16.314 3.85106 4.66077 30.00 1505.00 1021.837 0.45 0.45 16.673 3.81249 4.57428 29.40 1505.43 1021.299 0.75 0.75 16.938 3.78409 4.51155 28.97 1505.75 1020.907 1.05 1.05 16.907 3.76887 4.49673 28.86 1505.54 1020.834 1.35 1.35 16.559 3.76286 4.52713 29.06 1504.70 1021.066 1.65 1.65 16.114 3.83726 4.66657 30.03 1504.44 1021.911 1.95 1.95 15.907 3.83362 4.68575 30.15 1503.95 1022.054 2.25 2.25 15.747 3.81915 4.68645 30.15 1503.44 1022.087 2.55 2.54 15.567 3.81673 4.70419 30.27 1503.01 1022.216 2.85 2.84 15.309 3.80999 4.72595 30.40 1502.36 1022.380 3.15 3.14 15.029 3.80084 4.74762 30.54 1501.63 1022.546 3.45 3.44 14.696 3.79741 4.78310 30.77 1500.84 1022.795 3.75 3.74 14.443 3.79305 4.80825 30.93 1500.21 1022.973 4.05 4.04 14.143 3.78632 4.83655 31.11 1499.45 1023.175 4.35 4.34 13.923 3.77147 4.84476 31.15 1498.78 1023.253 4.65 4.64 13.707 3.76448 4.86277 31.27 1498.20 1023.383 4.95 4.94 13.416 3.74886 4.87932 31.36 1497.35 1023.515 5.25 5.23 13.315 3.74613 4.88853 31.42 1497.09 1023.580 5.55 5.53 13.262 3.75247 4.90360 31.52 1497.04 1023.672 5.85 5.83 13.138 3.75470 4.92248 31.64 1496.78 1023.793 6.15 6.13 12.926 3.74574 4.93819 31.74 1496.18 1023.908 6.45 6.43 12.790 3.72851 4.93316 31.69 1495.67 1023.898 6.75 6.73 12.649 3.72361 4.94512 31.76 1495.28 1023.982 7.05 7.03 12.497 3.72047 4.96106 31.86 1494.89 1024.089 7.35 7.33 12.363 3.71649 4.97347 31.93 1494.53 1024.174 7.65 7.62 12.261 3.71077 4.97944 31.97 1494.22 1024.220 7.95 7.92 12.166 3.70509 4.98449 31.99 1493.93 1024.259 8.25 8.22 12.056 3.69220 4.98191 31.96 1493.52 1024.258 8.55 8.52 11.935 3.68527 4.98885 32.00 1493.16 1024.310 8.85 8.82 11.824 3.67867 4.99497 32.03 1492.82 1024.357 9.15 9.12 11.738 3.67189 4.99742 32.04 1492.53 1024.380 9.45 9.42 11.661 3.66564 4.99939 32.04 1492.28 1024.400 9.75 9.71 11.582 3.66047 5.00305 32.06 1492.03 1024.429 10.05 10.01 11.530 3.65767 5.00634 32.08 1491.88 1024.453 10.35 10.31 11.462 3.65764 5.01563 32.14 1491.71 1024.513 10.65 10.61 11.418 3.65339 5.01591 32.13 1491.56 1024.520 10.95 10.91 11.403 3.65069 5.01424 32.12 1491.50 1024.513 11.25 11.21 11.365 3.65016 5.01877 32.15 1491.40 1024.543 11.55 11.50 11.315 3.65014 5.02562 32.19 1491.29 1024.587 11.85 11.80 11.273 3.64422 5.02329 32.17 1491.12 1024.579 12.15 12.10 11.206 3.63864 5.02493 32.17 1490.89 1024.595 12.45 12.40 11.104 3.62938 5.02622 32.17 1490.54 1024.612 12.75 12.70 10.974 3.62177 5.03391 32.21 1490.13 1024.667 13.05 13.00 10.874 3.60439 5.02369 32.13 1489.68 1024.620 13.35 13.30 10.783 3.59881 5.02867 32.15 1489.39 1024.656 13.65 13.59 10.753 3.59503 5.02759 32.14 1489.27 1024.654 13.95 13.89 10.693 3.59273 5.03285 32.17 1489.10 1024.689 14.25 14.19 10.634 3.59210 5.04024 32.21 1488.95 1024.736 14.55 14.49 10.605 3.59297 5.04563 32.25 1488.89 1024.769 14.85 14.79 10.578 3.59535 5.05281 32.30 1488.86 1024.812 15.07 15.01 10.582 3.59479 5.05145 32.29 1488.87 1024.806