*2026/01/16 09:57:54.50 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 18:32:04.000 END TIME : UTC 2024/09/04 18:32:30.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.49 2 Depth metres 0.15 40.3 3 Temperature 'deg C (ITS90)' 9.475 18.704 4 Conductivity S/m 3.47906 3.96887 5 Conductance:Specific S/m 4.37447 5.0647 6 Salinity PSS-78 28.06 32.23 7 Speed:Sound m/s 1485.05 1510.01 8 Density kg/m^3 1019.801 1025.054 $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 : 239 LATITUDE : 48 58.29890 N ! (deg min) LONGITUDE : 125 19.40660 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_183204 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 135 135 MERGEHDR 1.3 2026/01/16 09:54:05 135 135 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 135 135 CALIB 12.1 2026/01/16 09:56:55 135 135 CLEAN 5.3 2026/01/16 09:57:54 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 18.704 3.82366 4.37447 28.06 1510.01 1019.801 0.45 0.45 18.021 3.94337 4.58309 29.53 1509.65 1021.084 0.75 0.75 17.538 3.96887 4.66511 30.09 1508.86 1021.632 1.05 1.05 17.241 3.96566 4.69404 30.29 1508.19 1021.851 1.35 1.35 16.956 3.96675 4.72724 30.51 1507.58 1022.089 1.65 1.65 16.709 3.96506 4.75326 30.68 1507.03 1022.280 1.95 1.95 16.426 3.95369 4.77201 30.80 1506.30 1022.437 2.25 2.25 16.176 3.94245 4.78728 30.90 1505.65 1022.567 2.55 2.54 15.962 3.93487 4.80309 31.00 1505.10 1022.693 2.85 2.84 15.717 3.92301 4.81739 31.09 1504.44 1022.816 3.15 3.14 15.360 3.91547 4.85070 31.30 1503.57 1023.061 3.45 3.44 15.092 3.89610 4.85898 31.34 1502.77 1023.151 3.75 3.74 14.897 3.87961 4.86206 31.35 1502.16 1023.201 4.05 4.04 14.638 3.85340 4.86080 31.32 1501.30 1023.235 4.35 4.34 14.389 3.82118 4.85056 31.23 1500.39 1023.217 4.65 4.64 14.038 3.79818 4.86475 31.31 1499.34 1023.348 4.95 4.94 13.801 3.77968 4.87053 31.33 1498.59 1023.414 5.25 5.23 13.611 3.76255 4.87240 31.33 1497.97 1023.452 5.55 5.53 13.457 3.75245 4.87878 31.36 1497.50 1023.509 5.85 5.83 13.309 3.74232 4.88436 31.39 1497.04 1023.561 6.15 6.13 13.102 3.73257 4.89815 31.47 1496.45 1023.664 6.45 6.43 12.946 3.71985 4.90150 31.48 1495.94 1023.704 6.75 6.73 12.844 3.70408 4.89387 31.41 1495.53 1023.675 7.05 7.03 12.709 3.68639 4.88796 31.36 1495.01 1023.660 7.35 7.33 12.555 3.68333 4.90393 31.46 1494.61 1023.768 7.65 7.62 12.446 3.68172 4.91610 31.53 1494.34 1023.849 7.95 7.92 12.300 3.68168 4.93523 31.65 1493.99 1023.972 8.25 8.22 12.170 3.67218 4.93975 31.67 1493.57 1024.012 8.55 8.52 12.111 3.65491 4.92432 31.56 1493.23 1023.935 8.85 8.82 12.069 3.64534 4.91696 31.50 1493.03 1023.900 9.15 9.12 11.976 3.64178 4.92455 31.54 1492.77 1023.953 9.45 9.42 11.888 3.64046 4.93441 31.61 1492.54 1024.018 9.75 9.71 11.839 3.64026 4.94078 31.65 1492.42 1024.059 10.05 10.01 11.810 3.63898 4.94287 31.66 1492.34 1024.075 10.35 10.31 11.797 3.63783 4.94308 31.66 1492.30 1024.079 10.65 10.61 11.783 3.63625 4.94287 31.65 1492.25 1024.080 10.95 10.91 11.768 3.63580 4.94424 31.66 1492.22 1024.091 11.25 11.21 11.761 3.63567 4.94497 31.67 1492.20 1024.097 11.55 11.51 11.759 3.63575 4.94541 31.67 1492.20 1024.100 11.85 11.81 11.751 3.63528 4.94578 31.67 1492.18 1024.104 12.15 12.10 11.734 3.63417 4.94656 31.67 1492.14 1024.112 12.45 12.40 11.713 3.63472 4.95025 31.70 1492.09 1024.136 12.75 12.70 11.686 3.63241 4.95070 31.70 1492.01 1024.142 13.05 13.00 11.657 3.62730 4.94756 31.67 1491.88 1024.129 13.35 13.30 11.630 3.62443 4.94729 31.67 1491.79 1024.131 13.65 13.60 11.601 3.62265 4.94889 31.68 1491.70 1024.144 13.95 13.90 11.490 3.62154 4.96235 31.76 1491.42 1024.230 14.25 14.19 11.398 3.61333 4.96366 31.76 1491.10 1024.248 14.55 14.49 11.350 3.60580 4.95983 31.73 1490.90 1024.232 14.85 14.79 11.298 3.59978 4.95868 31.71 1490.70 1024.232 15.15 15.09 11.208 3.59459 4.96381 31.74 1490.42 1024.270 15.45 15.39 11.093 3.58208 4.96225 31.71 1490.00 1024.272 15.75 15.69 11.000 3.57387 4.96378 31.71 1489.67 1024.290 16.05 15.99 10.943 3.57130 4.96806 31.74 1489.50 1024.320 16.35 16.28 10.870 3.56960 4.97575 31.78 1489.30 1024.370 16.65 16.58 10.808 3.56814 4.98229 31.82 1489.14 1024.412 16.95 16.88 10.784 3.56752 4.98474 31.84 1489.08 1024.429 17.25 17.18 10.758 3.56656 4.98713 31.85 1489.00 1024.445 17.55 17.48 10.729 3.56587 4.99017 31.87 1488.93 1024.466 17.85 17.78 10.699 3.56355 4.99107 31.87 1488.83 1024.474 18.15 18.08 10.658 3.55789 4.98886 31.85 1488.66 1024.467 18.45 18.37 10.605 3.55667 4.99468 31.89 1488.52 1024.504 18.75 18.67 10.566 3.55567 4.99874 31.91 1488.41 1024.531 19.05 18.97 10.542 3.55368 4.99923 31.91 1488.34 1024.536 19.35 19.27 10.518 3.54809 4.99477 31.88 1488.21 1024.515 19.65 19.57 10.447 3.54623 5.00213 31.92 1488.02 1024.562 19.95 19.87 10.373 3.54369 5.00901 31.96 1487.80 1024.607 20.25 20.16 10.340 3.54192 5.01121 31.97 1487.70 1024.623 20.55 20.46 10.318 3.54050 5.01231 31.97 1487.64 1024.631 20.85 20.76 10.298 3.53666 5.00972 31.95 1487.54 1024.620 21.15 21.06 10.272 3.53554 5.01183 31.97 1487.47 1024.635 21.45 21.36 10.245 3.53434 5.01397 31.98 1487.39 1024.650 21.75 21.66 10.222 3.53264 5.01489 31.98 1487.31 1024.657 22.05 21.96 10.206 3.52999 5.01333 31.97 1487.25 1024.651 22.35 22.25 10.183 3.52799 5.01376 31.97 1487.17 1024.656 22.65 22.55 10.157 3.52810 5.01758 31.99 1487.11 1024.680 22.95 22.85 10.145 3.52769 5.01874 32.00 1487.08 1024.689 23.25 23.15 10.129 3.52750 5.02083 32.01 1487.04 1024.703 23.55 23.45 10.120 3.52621 5.02027 32.00 1487.01 1024.702 23.85 23.75 10.108 3.52575 5.02123 32.01 1486.98 1024.709 24.15 24.04 10.095 3.52403 5.02063 32.00 1486.93 1024.708 24.45 24.34 10.078 3.52446 5.02376 32.02 1486.89 1024.727 24.75 24.64 10.067 3.52343 5.02390 32.02 1486.86 1024.730 25.05 24.94 10.063 3.52159 5.02178 32.01 1486.83 1024.720 25.35 25.24 10.049 3.52044 5.02221 32.01 1486.78 1024.724 25.65 25.54 10.035 3.52109 5.02505 32.03 1486.76 1024.742 25.95 25.84 10.031 3.52050 5.02478 32.02 1486.75 1024.742 26.25 26.13 10.025 3.52042 5.02565 32.03 1486.74 1024.749 26.55 26.43 10.023 3.51980 5.02493 32.02 1486.73 1024.746 26.85 26.73 10.020 3.52005 5.02571 32.03 1486.73 1024.752 27.15 27.03 10.011 3.51960 5.02636 32.03 1486.71 1024.757 27.45 27.33 10.009 3.51937 5.02640 32.03 1486.70 1024.759 27.75 27.63 10.007 3.51930 5.02653 32.03 1486.70 1024.761 28.05 27.92 10.004 3.51899 5.02650 32.03 1486.70 1024.762 28.35 28.22 10.003 3.51917 5.02697 32.04 1486.70 1024.766 28.65 28.52 10.003 3.51989 5.02798 32.04 1486.71 1024.773 28.95 28.82 10.002 3.51924 5.02717 32.04 1486.71 1024.770 29.25 29.12 10.004 3.51902 5.02660 32.03 1486.72 1024.768 29.55 29.42 10.004 3.51959 5.02738 32.04 1486.73 1024.774 29.85 29.71 10.004 3.51939 5.02706 32.04 1486.73 1024.773 30.15 30.01 9.999 3.51962 5.02810 32.04 1486.73 1024.780 30.45 30.31 10.000 3.51945 5.02774 32.04 1486.73 1024.780 30.75 30.61 10.001 3.51989 5.02831 32.04 1486.74 1024.784 31.05 30.91 10.006 3.51993 5.02768 32.04 1486.76 1024.781 31.35 31.21 10.001 3.51901 5.02697 32.03 1486.74 1024.779 31.65 31.51 9.985 3.51806 5.02799 32.04 1486.69 1024.787 31.95 31.80 9.974 3.51774 5.02908 32.04 1486.67 1024.795 32.25 32.10 9.970 3.51750 5.02930 32.05 1486.66 1024.798 32.55 32.40 9.956 3.51594 5.02902 32.04 1486.61 1024.798 32.85 32.70 9.944 3.51565 5.03035 32.05 1486.58 1024.808 33.15 33.00 9.931 3.51501 5.03141 32.06 1486.54 1024.816 33.45 33.30 9.919 3.51418 5.03185 32.06 1486.51 1024.820 33.75 33.59 9.907 3.51285 5.03173 32.05 1486.46 1024.821 34.05 33.89 9.891 3.51227 5.03316 32.06 1486.42 1024.832 34.35 34.19 9.863 3.51095 5.03530 32.07 1486.34 1024.846 34.65 34.49 9.849 3.51071 5.03705 32.08 1486.30 1024.858 34.95 34.79 9.831 3.50918 5.03748 32.08 1486.24 1024.863 35.25 35.09 9.823 3.50765 5.03639 32.08 1486.21 1024.859 35.55 35.38 9.807 3.50600 5.03627 32.07 1486.15 1024.860 35.85 35.68 9.789 3.50576 5.03858 32.09 1486.11 1024.875 36.15 35.98 9.771 3.50614 5.04178 32.11 1486.07 1024.895 36.45 36.28 9.779 3.50570 5.04003 32.09 1486.09 1024.886 36.75 36.58 9.771 3.50574 5.04116 32.10 1486.08 1024.894 37.05 36.88 9.767 3.50574 5.04173 32.10 1486.07 1024.899 37.35 37.18 9.757 3.50281 5.03903 32.08 1486.01 1024.886 37.65 37.47 9.733 3.50447 5.04493 32.12 1485.98 1024.921 37.95 37.77 9.730 3.50358 5.04404 32.12 1485.96 1024.918 38.25 38.07 9.721 3.50052 5.04088 32.09 1485.91 1024.902 38.55 38.37 9.683 3.49909 5.04441 32.11 1485.80 1024.925 38.85 38.67 9.644 3.49763 5.04794 32.13 1485.69 1024.948 39.15 38.97 9.613 3.49707 5.05165 32.15 1485.60 1024.971 39.45 39.26 9.582 3.49269 5.04980 32.14 1485.48 1024.964 39.75 39.56 9.491 3.49175 5.06181 32.21 1485.23 1025.036 40.05 39.86 9.475 3.49209 5.06470 32.23 1485.20 1025.054 40.49 40.30 9.475 3.47906 5.04575 32.09 1485.05 1024.952