*2026/01/16 09:57:54.49 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 17:18:31.000 END TIME : UTC 2024/09/04 17:18:58.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 137 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.92 2 Depth metres 0.15 40.72 3 Temperature 'deg C (ITS90)' 9.718 15.501 4 Conductivity S/m 3.52125 3.81728 5 Conductance:Specific S/m 4.71261 5.07209 6 Salinity PSS-78 30.32 32.31 7 Speed:Sound m/s 1486.2 1502.83 8 Density kg/m^3 1022.264 1025.085 $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 : 238 LATITUDE : 48 54.54760 N ! (deg min) LONGITUDE : 125 28.51960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_171831 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 137 137 MERGEHDR 1.3 2026/01/16 09:54:05 137 137 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 137 137 CALIB 12.1 2026/01/16 09:56:55 137 137 CLEAN 5.3 2026/01/16 09:57:54 137 137 $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 15.501 3.81728 4.71261 30.32 1502.83 1022.264 0.45 0.45 15.082 3.81653 4.76089 30.64 1501.87 1022.599 0.75 0.75 15.011 3.81558 4.76815 30.69 1501.71 1022.652 1.05 1.05 15.060 3.81440 4.76083 30.64 1501.81 1022.605 1.35 1.35 14.907 3.80967 4.77314 30.72 1501.42 1022.698 1.65 1.64 14.752 3.80735 4.78892 30.82 1501.04 1022.811 1.95 1.94 14.678 3.80064 4.78934 30.82 1500.80 1022.826 2.25 2.24 14.612 3.80057 4.79722 30.87 1500.66 1022.880 2.55 2.54 14.543 3.80031 4.80534 30.92 1500.50 1022.937 2.85 2.84 14.508 3.79790 4.80655 30.93 1500.40 1022.950 3.15 3.14 14.468 3.79479 4.80746 30.93 1500.28 1022.963 3.45 3.44 14.396 3.78861 4.80842 30.93 1500.05 1022.980 3.75 3.74 14.297 3.78515 4.81611 30.98 1499.79 1023.038 4.05 4.04 14.200 3.78228 4.82433 31.03 1499.54 1023.099 4.35 4.34 14.159 3.77816 4.82416 31.03 1499.40 1023.105 4.65 4.63 14.082 3.77640 4.83138 31.07 1499.21 1023.157 4.95 4.93 13.909 3.76279 4.83539 31.09 1498.66 1023.205 5.25 5.23 13.759 3.75787 4.84778 31.16 1498.26 1023.296 5.55 5.53 13.639 3.74936 4.85177 31.18 1497.90 1023.336 5.85 5.83 13.424 3.73366 4.85850 31.21 1497.22 1023.403 6.15 6.13 13.144 3.71532 4.87012 31.27 1496.36 1023.504 6.45 6.43 13.035 3.70838 4.87501 31.29 1496.03 1023.546 6.75 6.73 12.934 3.70409 4.88233 31.34 1495.74 1023.601 7.05 7.02 12.838 3.69998 4.88930 31.38 1495.47 1023.652 7.35 7.32 12.761 3.69068 4.88688 31.35 1495.19 1023.649 7.65 7.62 12.675 3.68590 4.89168 31.38 1494.94 1023.687 7.95 7.92 12.607 3.68164 4.89485 31.40 1494.73 1023.714 8.25 8.22 12.505 3.67645 4.90127 31.43 1494.43 1023.762 8.55 8.52 12.422 3.67365 4.90844 31.47 1494.20 1023.813 8.85 8.82 12.371 3.67002 4.91023 31.48 1494.04 1023.830 9.15 9.12 12.334 3.66793 4.91238 31.49 1493.93 1023.847 9.45 9.41 12.312 3.66816 4.91552 31.51 1493.89 1023.868 9.75 9.71 12.300 3.66722 4.91582 31.51 1493.85 1023.872 10.05 10.01 12.246 3.66569 4.92089 31.55 1493.71 1023.907 10.35 10.31 12.167 3.66118 4.92528 31.57 1493.47 1023.942 10.65 10.61 12.094 3.65227 4.92294 31.54 1493.20 1023.938 10.95 10.91 12.023 3.65036 4.92982 31.59 1493.01 1023.985 11.25 11.21 11.924 3.64210 4.93193 31.59 1492.68 1024.008 11.55 11.51 11.776 3.63365 4.94029 31.63 1492.22 1024.071 11.85 11.80 11.684 3.62759 4.94438 31.65 1491.93 1024.104 12.15 12.10 11.645 3.62621 4.94775 31.67 1491.82 1024.127 12.45 12.40 11.607 3.61911 4.94320 31.64 1491.65 1024.107 12.75 12.70 11.557 3.61774 4.94809 31.67 1491.52 1024.140 13.05 13.00 11.517 3.61621 4.95147 31.69 1491.41 1024.164 13.35 13.30 11.481 3.61344 4.95253 31.69 1491.29 1024.175 13.65 13.60 11.444 3.61008 4.95290 31.69 1491.17 1024.181 13.95 13.89 11.387 3.60494 4.95359 31.69 1490.97 1024.192 14.25 14.19 11.308 3.60239 4.96087 31.73 1490.75 1024.240 14.55 14.49 11.236 3.59871 4.96567 31.76 1490.53 1024.275 14.85 14.79 11.185 3.59562 4.96836 31.77 1490.37 1024.296 15.15 15.09 11.159 3.59482 4.97080 31.78 1490.31 1024.312 15.45 15.39 11.143 3.59356 4.97127 31.78 1490.26 1024.318 15.75 15.69 11.133 3.59331 4.97238 31.79 1490.23 1024.326 16.05 15.98 11.127 3.59231 4.97181 31.79 1490.21 1024.325 16.35 16.28 11.106 3.59112 4.97300 31.79 1490.15 1024.334 16.65 16.58 11.091 3.59046 4.97420 31.80 1490.11 1024.344 16.95 16.88 11.082 3.58937 4.97385 31.80 1490.08 1024.344 17.25 17.18 11.068 3.58780 4.97363 31.79 1490.03 1024.345 17.55 17.48 11.049 3.58754 4.97586 31.81 1489.98 1024.360 17.85 17.78 11.004 3.58626 4.98040 31.83 1489.86 1024.390 18.15 18.07 11.005 3.58535 4.97901 31.82 1489.86 1024.384 18.45 18.37 10.978 3.58462 4.98170 31.84 1489.79 1024.402 18.75 18.67 10.964 3.58250 4.98068 31.83 1489.73 1024.399 19.05 18.97 10.923 3.58184 4.98548 31.86 1489.63 1024.430 19.35 19.27 10.922 3.58037 4.98359 31.84 1489.61 1024.421 19.65 19.57 10.906 3.57958 4.98464 31.85 1489.57 1024.430 19.95 19.87 10.898 3.58022 4.98660 31.86 1489.56 1024.442 20.25 20.16 10.890 3.57891 4.98600 31.86 1489.53 1024.441 20.55 20.46 10.881 3.57881 4.98709 31.86 1489.51 1024.449 20.85 20.76 10.867 3.57780 4.98756 31.87 1489.47 1024.454 21.15 21.06 10.862 3.57688 4.98707 31.86 1489.45 1024.453 21.45 21.36 10.836 3.57554 4.98873 31.87 1489.37 1024.466 21.75 21.66 10.806 3.57604 4.99359 31.90 1489.31 1024.496 22.05 21.96 10.773 3.57302 4.99395 31.90 1489.20 1024.502 22.35 22.25 10.761 3.57086 4.99263 31.89 1489.14 1024.497 22.65 22.55 10.731 3.56882 4.99400 31.89 1489.05 1024.508 22.95 22.85 10.709 3.56736 4.99504 31.90 1488.98 1024.517 23.25 23.15 10.681 3.56344 4.99344 31.88 1488.87 1024.511 23.55 23.45 10.652 3.56158 4.99493 31.89 1488.78 1024.523 23.85 23.75 10.619 3.56174 4.99973 31.92 1488.70 1024.554 24.15 24.04 10.604 3.56041 5.00000 31.92 1488.65 1024.557 24.45 24.34 10.580 3.55821 5.00025 31.92 1488.57 1024.562 24.75 24.64 10.562 3.55720 5.00141 31.93 1488.52 1024.571 25.05 24.94 10.504 3.55364 5.00460 31.94 1488.33 1024.594 25.35 25.24 10.440 3.55185 5.01112 31.98 1488.16 1024.636 25.65 25.54 10.400 3.54923 5.01305 31.99 1488.03 1024.651 25.95 25.84 10.365 3.54856 5.01710 32.01 1487.94 1024.677 26.25 26.13 10.319 3.54527 5.01887 32.02 1487.79 1024.692 26.55 26.43 10.289 3.54372 5.02095 32.03 1487.70 1024.706 26.85 26.73 10.250 3.54041 5.02179 32.03 1487.56 1024.715 27.15 27.03 10.207 3.53806 5.02470 32.05 1487.43 1024.735 27.45 27.33 10.179 3.53791 5.02850 32.07 1487.36 1024.760 27.75 27.63 10.157 3.53762 5.03122 32.09 1487.31 1024.777 28.05 27.92 10.147 3.53792 5.03301 32.10 1487.29 1024.789 28.35 28.22 10.142 3.53676 5.03213 32.09 1487.27 1024.786 28.65 28.52 10.132 3.53631 5.03285 32.09 1487.24 1024.792 28.95 28.82 10.116 3.53498 5.03333 32.09 1487.19 1024.797 29.25 29.12 10.105 3.53553 5.03562 32.11 1487.17 1024.811 29.55 29.42 10.096 3.53464 5.03571 32.11 1487.14 1024.814 29.85 29.72 10.093 3.53507 5.03675 32.12 1487.15 1024.821 30.15 30.01 10.087 3.53399 5.03606 32.11 1487.12 1024.819 30.45 30.31 10.079 3.53457 5.03799 32.12 1487.12 1024.831 30.75 30.61 10.075 3.53409 5.03791 32.12 1487.10 1024.832 31.05 30.91 10.068 3.53432 5.03924 32.13 1487.09 1024.841 31.35 31.21 10.070 3.53535 5.04047 32.14 1487.12 1024.849 31.65 31.51 10.066 3.53485 5.04031 32.14 1487.10 1024.850 31.95 31.80 10.059 3.53406 5.04023 32.13 1487.08 1024.851 32.25 32.10 10.044 3.53429 5.04260 32.15 1487.05 1024.866 32.55 32.40 10.039 3.53405 5.04305 32.15 1487.04 1024.871 32.85 32.70 10.038 3.53469 5.04402 32.16 1487.05 1024.877 33.15 33.00 10.036 3.53382 5.04317 32.15 1487.04 1024.874 33.45 33.30 10.038 3.53416 5.04328 32.15 1487.06 1024.876 33.75 33.59 10.034 3.53452 5.04441 32.16 1487.05 1024.883 34.05 33.89 10.034 3.53389 5.04346 32.15 1487.05 1024.879 34.35 34.19 10.028 3.53431 5.04498 32.16 1487.05 1024.889 34.65 34.49 10.030 3.53413 5.04444 32.16 1487.05 1024.888 34.95 34.79 10.026 3.53443 5.04544 32.17 1487.05 1024.895 35.25 35.09 10.025 3.53486 5.04620 32.17 1487.06 1024.900 35.55 35.38 10.017 3.53428 5.04648 32.17 1487.04 1024.903 35.85 35.68 10.013 3.53421 5.04697 32.17 1487.03 1024.908 36.15 35.98 10.008 3.53366 5.04687 32.17 1487.02 1024.909 36.45 36.28 10.000 3.53317 5.04733 32.18 1486.99 1024.913 36.75 36.58 9.998 3.53256 5.04681 32.17 1486.99 1024.912 37.05 36.88 9.993 3.53251 5.04740 32.17 1486.98 1024.916 37.35 37.18 9.972 3.53144 5.04890 32.18 1486.92 1024.927 37.65 37.47 9.931 3.53123 5.05456 32.22 1486.81 1024.962 37.95 37.77 9.895 3.52932 5.05701 32.23 1486.70 1024.979 38.25 38.07 9.901 3.52842 5.05492 32.22 1486.71 1024.969 38.55 38.37 9.875 3.52779 5.05771 32.23 1486.64 1024.987 38.85 38.67 9.860 3.52776 5.05987 32.24 1486.61 1025.001 39.15 38.97 9.852 3.52606 5.05857 32.23 1486.57 1024.996 39.45 39.26 9.837 3.52392 5.05776 32.23 1486.51 1024.993 39.75 39.56 9.798 3.52360 5.06300 32.26 1486.41 1025.026 40.05 39.86 9.766 3.52237 5.06578 32.27 1486.32 1025.044 40.35 40.16 9.743 3.52146 5.06781 32.28 1486.26 1025.058 40.65 40.46 9.718 3.52182 5.07209 32.31 1486.20 1025.085 40.92 40.72 9.723 3.52125 5.07044 32.30 1486.21 1025.076