*2026/01/16 09:57:52.11 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/06/12 21:29:03.000 END TIME : UTC 2024/06/12 21:29:19.000 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 24.27 2 Depth metres 0.15 24.23 3 Temperature 'deg C (ITS90)' 9.65 17.206 4 Conductivity S/m 1.23823 3.50537 5 Conductance:Specific S/m 1.46705 5.04565 6 Salinity PSS-78 8.48 32.12 7 Speed:Sound m/s 1483.25 1491.09 8 Density kg/m^3 1005.224 1024.87 $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 : 155 LATITUDE : 49 5.62650 N ! (deg min) LONGITUDE : 124 49.08530 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240612_212903 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 81 81 MERGEHDR 1.3 2026/01/16 09:53:54 81 81 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:18 81 81 CALIB 12.1 2026/01/16 09:56:51 81 81 CLEAN 5.3 2026/01/16 09:57:52 81 81 $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 17.201 1.23823 1.46705 8.48 1483.25 1005.224 0.45 0.46 17.206 1.24168 1.47096 8.51 1483.30 1005.243 0.75 0.76 17.187 1.24391 1.47428 8.53 1483.27 1005.264 1.05 1.06 17.146 1.25621 1.49032 8.63 1483.25 1005.349 1.35 1.37 17.127 1.27447 1.51264 8.77 1483.36 1005.461 1.65 1.67 17.139 1.28736 1.52750 8.86 1483.51 1005.531 1.95 1.98 17.147 1.29972 1.54189 8.95 1483.64 1005.600 2.25 2.28 17.133 1.31566 1.56134 9.07 1483.74 1005.697 2.55 2.59 17.095 1.33292 1.58322 9.21 1483.78 1005.810 2.85 2.89 16.966 1.37254 1.63530 9.54 1483.74 1006.085 3.15 3.19 16.615 1.47606 1.77346 10.41 1483.60 1006.818 3.45 3.50 16.222 1.69914 2.06095 12.25 1484.43 1008.295 3.75 3.80 15.767 2.01120 2.46671 14.88 1485.96 1010.397 4.05 4.10 15.178 2.57958 3.21018 19.83 1489.73 1014.298 4.35 4.40 14.801 2.70937 3.40361 21.13 1490.00 1015.369 4.65 4.70 14.607 2.74828 3.46946 21.57 1489.87 1015.746 4.95 5.01 14.370 2.78293 3.53430 22.00 1489.59 1016.124 5.25 5.31 14.081 2.83966 3.63309 22.67 1489.40 1016.690 5.55 5.61 13.475 2.99268 3.88908 24.40 1489.38 1018.135 5.85 5.91 12.905 3.20288 4.22489 26.69 1490.14 1020.012 6.15 6.21 12.483 3.38700 4.51805 28.71 1491.09 1021.654 6.45 6.51 12.010 3.44536 4.65461 29.64 1490.56 1022.454 6.75 6.80 11.421 3.47802 4.77478 30.43 1489.46 1023.174 7.05 7.10 11.082 3.49339 4.84094 30.86 1488.79 1023.570 7.35 7.40 10.875 3.49873 4.87628 31.08 1488.33 1023.783 7.65 7.70 10.732 3.50180 4.90007 31.24 1488.01 1023.927 7.95 8.00 10.667 3.50232 4.90972 31.30 1487.86 1023.986 8.25 8.30 10.615 3.50313 4.91801 31.35 1487.74 1024.037 8.55 8.60 10.566 3.50368 4.92562 31.40 1487.63 1024.084 8.85 8.90 10.538 3.50337 4.92905 31.42 1487.56 1024.107 9.15 9.19 10.509 3.50390 4.93379 31.45 1487.49 1024.136 9.45 9.49 10.478 3.50486 4.93946 31.48 1487.43 1024.171 9.75 9.79 10.436 3.50450 4.94485 31.52 1487.32 1024.205 10.05 10.09 10.369 3.50537 4.95541 31.58 1487.17 1024.270 10.35 10.39 10.316 3.50422 4.96124 31.62 1487.03 1024.307 10.65 10.69 10.305 3.50343 4.96165 31.62 1486.99 1024.311 10.95 10.99 10.248 3.50439 4.97110 31.68 1486.86 1024.369 11.25 11.28 10.186 3.50318 4.97806 31.72 1486.70 1024.412 11.55 11.58 10.136 3.50238 4.98405 31.76 1486.57 1024.450 11.85 11.88 10.087 3.50142 4.98961 31.79 1486.43 1024.485 12.15 12.18 10.038 3.50074 4.99570 31.83 1486.30 1024.523 12.45 12.48 9.982 3.50072 5.00357 31.87 1486.17 1024.572 12.75 12.78 9.946 3.49930 5.00671 31.89 1486.06 1024.593 13.05 13.07 9.927 3.50076 5.01158 31.92 1486.04 1024.622 13.35 13.37 9.895 3.49986 5.01491 31.94 1485.95 1024.644 13.65 13.67 9.859 3.49908 5.01889 31.97 1485.85 1024.669 13.95 13.97 9.862 3.50051 5.02049 31.98 1485.88 1024.679 14.25 14.27 9.874 3.50175 5.02056 31.98 1485.93 1024.680 14.55 14.57 9.843 3.49870 5.02069 31.98 1485.82 1024.684 14.85 14.87 9.843 3.49993 5.02248 31.99 1485.84 1024.695 15.15 15.16 9.842 3.49910 5.02135 31.98 1485.83 1024.690 15.45 15.46 9.835 3.49848 5.02148 31.98 1485.81 1024.692 15.75 15.76 9.824 3.49846 5.02300 31.99 1485.79 1024.703 16.05 16.06 9.840 3.49900 5.02159 31.98 1485.84 1024.695 16.35 16.36 9.841 3.49982 5.02252 31.99 1485.86 1024.701 16.65 16.66 9.844 3.49945 5.02163 31.98 1485.87 1024.698 16.95 16.95 9.864 3.50140 5.02153 31.98 1485.95 1024.697 17.25 17.25 9.839 3.50036 5.02364 31.99 1485.87 1024.712 17.55 17.55 9.820 3.49918 5.02467 32.00 1485.82 1024.720 17.85 17.85 9.805 3.49900 5.02662 32.01 1485.78 1024.732 18.15 18.15 9.790 3.49928 5.02919 32.03 1485.75 1024.749 18.45 18.45 9.761 3.49707 5.03016 32.03 1485.65 1024.757 18.75 18.75 9.741 3.49733 5.03348 32.05 1485.61 1024.778 19.05 19.04 9.734 3.49831 5.03580 32.07 1485.61 1024.792 19.35 19.34 9.718 3.49735 5.03680 32.07 1485.56 1024.800 19.65 19.64 9.710 3.49647 5.03674 32.07 1485.53 1024.802 19.95 19.94 9.698 3.49747 5.03989 32.09 1485.52 1024.821 20.25 20.24 9.699 3.49838 5.04102 32.10 1485.54 1024.828 20.55 20.54 9.704 3.49740 5.03885 32.08 1485.55 1024.817 20.85 20.83 9.684 3.49826 5.04300 32.11 1485.51 1024.843 21.15 21.13 9.662 3.49646 5.04359 32.11 1485.44 1024.848 21.45 21.43 9.658 3.49675 5.04469 32.12 1485.43 1024.856 21.75 21.73 9.676 3.49720 5.04265 32.11 1485.49 1024.845 22.05 22.03 9.678 3.49551 5.04001 32.09 1485.48 1024.831 22.35 22.33 9.656 3.49586 5.04366 32.11 1485.43 1024.854 22.65 22.62 9.660 3.49669 5.04435 32.11 1485.46 1024.859 22.95 22.92 9.668 3.49552 5.04142 32.10 1485.47 1024.844 23.25 23.22 9.659 3.49582 5.04321 32.11 1485.45 1024.855 23.55 23.52 9.650 3.49667 5.04565 32.12 1485.45 1024.870 23.85 23.82 9.659 3.49667 5.04443 32.11 1485.47 1024.865 24.27 24.23 9.668 3.49527 5.04109 32.09 1485.48 1024.847