*2026/01/16 09:57:53.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/11 16:40:45.000 END TIME : UTC 2024/07/11 16:41:04.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.98 2 Depth metres 0.15 28.85 3 Temperature 'deg C (ITS90)' 9.475 18.013 4 Conductivity S/m 3.51835 3.78495 5 Conductance:Specific S/m 4.17256 5.10289 6 Salinity PSS-78 26.6 32.5 7 Speed:Sound m/s 1485.35 1508.11 8 Density kg/m^3 1018.909 1025.218 $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 : 183 LATITUDE : 49 42.08790 N ! (deg min) LONGITUDE : 126 37.90900 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240711_164045 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 97 97 MERGEHDR 1.3 2026/01/16 09:53:57 97 97 HDREDIT2 3.2 2026/01/16 09:55:08 ? ? REMOVECH 8.2 2026/01/16 09:56:19 97 97 CALIB 12.1 2026/01/16 09:56:52 97 97 CLEAN 5.3 2026/01/16 09:57:53 97 97 $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 09:56:19 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 18.001 3.78495 4.40104 28.23 1508.11 1020.093 0.45 0.45 17.962 3.76491 4.38163 28.09 1507.84 1019.997 0.75 0.75 17.991 3.74392 4.35432 27.89 1507.72 1019.844 1.05 1.05 18.013 3.71127 4.31415 27.61 1507.46 1019.623 1.35 1.35 17.998 3.66352 4.26013 27.22 1506.99 1019.334 1.65 1.65 17.943 3.61333 4.20710 26.85 1506.40 1019.060 1.95 1.95 17.869 3.58471 4.18105 26.66 1505.97 1018.936 2.25 2.25 17.783 3.57028 4.17256 26.60 1505.65 1018.909 2.55 2.55 17.677 3.57752 4.19139 26.72 1505.48 1019.033 2.85 2.85 17.355 3.59519 4.24407 27.08 1504.92 1019.382 3.15 3.15 16.849 3.59940 4.30047 27.46 1503.80 1019.786 3.45 3.45 16.446 3.61840 4.36518 27.90 1503.06 1020.213 3.75 3.75 15.813 3.62910 4.44597 28.44 1501.70 1020.766 4.05 4.05 15.136 3.72661 4.64247 29.80 1501.13 1021.955 4.35 4.35 14.599 3.71327 4.68856 30.09 1499.74 1022.293 4.65 4.65 13.939 3.68726 4.73471 30.37 1497.92 1022.645 4.95 4.95 13.257 3.65324 4.77465 30.60 1495.93 1022.959 5.25 5.24 12.621 3.63204 4.82716 30.92 1494.16 1023.328 5.55 5.54 12.321 3.62609 4.85794 31.11 1493.37 1023.533 5.85 5.84 12.058 3.62278 4.88803 31.29 1492.69 1023.729 6.15 6.14 11.862 3.61607 4.90491 31.39 1492.14 1023.844 6.45 6.44 11.743 3.61386 4.91771 31.47 1491.83 1023.928 6.75 6.74 11.671 3.60859 4.92020 31.48 1491.60 1023.950 7.05 7.04 11.604 3.61573 4.93901 31.61 1491.52 1024.062 7.35 7.34 11.537 3.61449 4.94639 31.65 1491.34 1024.110 7.65 7.63 11.492 3.61699 4.95587 31.72 1491.27 1024.168 7.95 7.93 11.468 3.62010 4.96337 31.77 1491.25 1024.213 8.25 8.23 11.415 3.62102 4.97188 31.82 1491.14 1024.266 8.55 8.53 11.347 3.61826 4.97743 31.85 1490.94 1024.305 8.85 8.83 11.304 3.60626 4.96675 31.77 1490.70 1024.251 9.15 9.13 11.206 3.59942 4.97077 31.79 1490.38 1024.283 9.45 9.43 11.123 3.59745 4.97943 31.84 1490.16 1024.339 9.75 9.72 11.070 3.59474 4.98305 31.86 1490.00 1024.365 10.05 10.02 11.027 3.59351 4.98723 31.89 1489.88 1024.393 10.35 10.32 10.928 3.58361 4.98727 31.88 1489.52 1024.403 10.65 10.62 10.713 3.56274 4.98796 31.85 1488.74 1024.426 10.95 10.92 10.596 3.54268 4.97624 31.76 1488.21 1024.371 11.25 11.22 10.497 3.54019 4.98659 31.82 1487.94 1024.437 11.55 11.51 10.435 3.54025 4.99537 31.87 1487.78 1024.492 11.85 11.81 10.386 3.53977 5.00167 31.91 1487.66 1024.531 12.15 12.11 10.331 3.53743 5.00607 31.94 1487.50 1024.561 12.45 12.41 10.287 3.53553 5.00969 31.96 1487.37 1024.585 12.75 12.71 10.254 3.53454 5.01293 31.97 1487.28 1024.607 13.05 13.01 10.223 3.53376 5.01621 31.99 1487.19 1024.628 13.35 13.31 10.196 3.53308 5.01912 32.01 1487.12 1024.647 13.65 13.60 10.162 3.53234 5.02294 32.03 1487.03 1024.672 13.95 13.90 10.133 3.53257 5.02741 32.06 1486.97 1024.700 14.25 14.20 10.117 3.53146 5.02818 32.06 1486.92 1024.706 14.55 14.50 10.111 3.53159 5.02915 32.07 1486.91 1024.713 14.85 14.80 10.106 3.53042 5.02824 32.06 1486.88 1024.710 15.15 15.10 10.077 3.52969 5.03127 32.08 1486.81 1024.730 15.45 15.39 10.053 3.53009 5.03537 32.11 1486.76 1024.755 15.75 15.69 10.042 3.52966 5.03638 32.11 1486.73 1024.763 16.05 15.99 10.040 3.53017 5.03730 32.12 1486.73 1024.769 16.35 16.29 10.023 3.52913 5.03830 32.12 1486.68 1024.777 16.65 16.59 9.987 3.52892 5.04325 32.15 1486.59 1024.808 16.95 16.89 9.968 3.52822 5.04498 32.16 1486.54 1024.820 17.25 17.19 9.933 3.52792 5.04960 32.19 1486.45 1024.849 17.55 17.48 9.920 3.52810 5.05168 32.20 1486.43 1024.863 17.85 17.78 9.905 3.52852 5.05450 32.22 1486.40 1024.880 18.15 18.08 9.896 3.52849 5.05568 32.23 1486.38 1024.889 18.45 18.38 9.889 3.52779 5.05579 32.23 1486.36 1024.891 18.75 18.68 9.881 3.52819 5.05743 32.24 1486.35 1024.902 19.05 18.98 9.878 3.52902 5.05911 32.25 1486.36 1024.912 19.35 19.27 9.870 3.53003 5.06176 32.27 1486.35 1024.929 19.65 19.57 9.861 3.53001 5.06299 32.28 1486.33 1024.938 19.95 19.87 9.855 3.53045 5.06446 32.28 1486.33 1024.947 20.25 20.17 9.851 3.53103 5.06591 32.29 1486.33 1024.957 20.55 20.47 9.848 3.53182 5.06743 32.30 1486.34 1024.967 20.85 20.77 9.838 3.53150 5.06848 32.31 1486.31 1024.974 21.15 21.06 9.839 3.53247 5.06975 32.32 1486.33 1024.983 21.45 21.36 9.824 3.53232 5.07172 32.33 1486.30 1024.996 21.75 21.66 9.805 3.53152 5.07326 32.34 1486.25 1025.006 22.05 21.96 9.780 3.53041 5.07533 32.35 1486.17 1025.021 22.35 22.26 9.766 3.52901 5.07542 32.35 1486.12 1025.023 22.65 22.56 9.740 3.52787 5.07750 32.36 1486.05 1025.037 22.95 22.85 9.714 3.52637 5.07912 32.37 1485.97 1025.049 23.25 23.15 9.700 3.52652 5.08145 32.38 1485.94 1025.064 23.55 23.45 9.678 3.52623 5.08418 32.40 1485.89 1025.082 23.85 23.75 9.653 3.52483 5.08587 32.41 1485.81 1025.094 24.15 24.05 9.625 3.52493 5.09015 32.43 1485.74 1025.120 24.45 24.35 9.615 3.52548 5.09235 32.45 1485.73 1025.134 24.75 24.64 9.583 3.52320 5.09381 32.45 1485.62 1025.145 25.05 24.94 9.567 3.52220 5.09474 32.46 1485.58 1025.152 25.35 25.24 9.551 3.52079 5.09501 32.46 1485.52 1025.156 25.65 25.54 9.541 3.52017 5.09569 32.46 1485.49 1025.162 25.95 25.84 9.530 3.52062 5.09790 32.47 1485.48 1025.176 26.25 26.14 9.528 3.52032 5.09782 32.47 1485.47 1025.177 26.55 26.43 9.517 3.52076 5.10004 32.49 1485.45 1025.191 26.85 26.73 9.521 3.52045 5.09902 32.48 1485.46 1025.186 27.15 27.03 9.510 3.52013 5.10019 32.49 1485.44 1025.194 27.45 27.33 9.495 3.51998 5.10215 32.50 1485.40 1025.207 27.75 27.63 9.490 3.51886 5.10121 32.49 1485.38 1025.204 28.05 27.92 9.485 3.51950 5.10289 32.50 1485.38 1025.214 28.35 28.22 9.483 3.51901 5.10255 32.50 1485.37 1025.214 28.65 28.52 9.477 3.51844 5.10254 32.50 1485.36 1025.215 28.98 28.85 9.475 3.51835 5.10281 32.50 1485.35 1025.218