*2026/01/16 09:57:57.67 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/10 20:10:34.000 END TIME : UTC 2024/12/10 20:11:00.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 133 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.65 2 Depth metres 0.15 39.5 3 Temperature 'deg C (ITS90)' 7.384 11.94 4 Conductivity S/m 1.39926 3.61591 5 Conductance:Specific S/m 2.16038 4.93604 6 Salinity PSS-78 12.57 31.57 7 Speed:Sound m/s 1452.3 1492.6 8 Density kg/m^3 1009.77 1024.195 $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 : 327 LATITUDE : 49 43.91140 N ! (deg min) LONGITUDE : 126 27.41160 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241210_201034 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:10 133 133 MERGEHDR 1.3 2026/01/16 09:54:14 133 133 HDREDIT2 3.2 2026/01/16 09:55:16 ? ? REMOVECH 8.2 2026/01/16 09:56:26 133 133 CALIB 12.1 2026/01/16 09:56:59 133 133 CLEAN 5.3 2026/01/16 09:57:57 133 133 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:16 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 09:56:26 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 7.384 1.39926 2.16038 12.57 1452.30 1009.770 0.45 0.45 8.153 1.63745 2.46956 14.58 1457.90 1011.273 0.75 0.76 8.834 2.10664 3.11320 18.82 1465.78 1014.507 1.05 1.06 9.295 2.48114 3.61733 22.23 1471.70 1017.102 1.35 1.36 9.429 2.69965 3.92065 24.29 1474.73 1018.697 1.65 1.66 9.622 2.95984 4.27447 26.74 1478.43 1020.577 1.95 1.96 9.836 3.03259 4.35265 27.30 1479.91 1020.985 2.25 2.26 9.966 3.09085 4.41980 27.78 1480.98 1021.340 2.55 2.56 10.060 3.11637 4.44439 27.96 1481.54 1021.468 2.85 2.86 10.126 3.13525 4.46285 28.10 1481.96 1021.564 3.15 3.15 10.226 3.17274 4.50342 28.39 1482.68 1021.778 3.45 3.45 10.286 3.20655 4.54366 28.68 1483.25 1021.994 3.75 3.75 10.360 3.23098 4.56870 28.86 1483.75 1022.126 4.05 4.05 10.476 3.25693 4.59028 29.03 1484.37 1022.235 4.35 4.35 10.548 3.29514 4.63479 29.35 1485.02 1022.474 4.65 4.65 10.613 3.30802 4.64441 29.42 1485.35 1022.522 4.95 4.95 10.687 3.31569 4.64556 29.44 1485.63 1022.524 5.25 5.25 10.730 3.32798 4.65717 29.52 1485.90 1022.585 5.55 5.55 10.769 3.33586 4.66306 29.57 1486.10 1022.615 5.85 5.85 10.829 3.34849 4.67291 29.64 1486.41 1022.665 6.15 6.15 10.868 3.37012 4.69801 29.83 1486.77 1022.800 6.45 6.44 10.908 3.38762 4.71703 29.96 1487.09 1022.902 6.75 6.74 10.961 3.39771 4.72414 30.02 1487.34 1022.938 7.05 7.04 11.001 3.40346 4.72691 30.04 1487.52 1022.951 7.35 7.34 11.027 3.41234 4.73579 30.11 1487.70 1022.998 7.65 7.64 11.049 3.41850 4.74149 30.15 1487.83 1023.029 7.95 7.94 11.076 3.41838 4.73774 30.13 1487.90 1023.007 8.25 8.24 11.089 3.42149 4.74031 30.15 1487.98 1023.021 8.55 8.54 11.107 3.42198 4.73864 30.14 1488.03 1023.012 8.85 8.84 11.128 3.42314 4.73749 30.13 1488.11 1023.005 9.15 9.13 11.166 3.42466 4.73461 30.11 1488.23 1022.987 9.45 9.43 11.244 3.43218 4.73483 30.12 1488.52 1022.982 9.75 9.73 11.317 3.48360 4.79609 30.56 1489.31 1023.313 10.05 10.03 11.386 3.48907 4.79453 30.56 1489.55 1023.299 10.35 10.33 11.449 3.49343 4.79224 30.55 1489.76 1023.282 10.65 10.63 11.482 3.49886 4.79531 30.58 1489.92 1023.297 10.95 10.93 11.505 3.50176 4.79622 30.58 1490.01 1023.301 11.25 11.23 11.531 3.50516 4.79756 30.60 1490.12 1023.307 11.55 11.53 11.545 3.50819 4.79988 30.61 1490.19 1023.320 11.85 11.82 11.553 3.50953 4.80057 30.62 1490.24 1023.324 12.15 12.12 11.568 3.51057 4.80004 30.62 1490.29 1023.321 12.45 12.42 11.578 3.51493 4.80467 30.65 1490.37 1023.347 12.75 12.72 11.601 3.52272 4.81229 30.71 1490.52 1023.388 13.05 13.02 11.618 3.52645 4.81519 30.73 1490.61 1023.403 13.35 13.32 11.634 3.52966 4.81751 30.75 1490.70 1023.416 13.65 13.62 11.643 3.53085 4.81788 30.75 1490.74 1023.418 13.95 13.92 11.653 3.53148 4.81745 30.75 1490.77 1023.416 14.25 14.21 11.663 3.53138 4.81603 30.74 1490.80 1023.408 14.55 14.51 11.671 3.53211 4.81594 30.74 1490.84 1023.408 14.85 14.81 11.679 3.53711 4.82170 30.78 1490.92 1023.440 15.15 15.11 11.687 3.54223 4.82762 30.82 1491.00 1023.474 15.45 15.41 11.699 3.54681 4.83228 30.86 1491.09 1023.499 15.75 15.71 11.708 3.55259 4.83897 30.91 1491.18 1023.536 16.05 16.01 11.715 3.55457 4.84078 30.92 1491.23 1023.547 16.35 16.31 11.723 3.55523 4.84060 30.92 1491.26 1023.546 16.65 16.61 11.725 3.55504 4.84010 30.92 1491.27 1023.545 16.95 16.90 11.722 3.55534 4.84087 30.92 1491.27 1023.550 17.25 17.20 11.719 3.55463 4.84029 30.92 1491.26 1023.549 17.55 17.50 11.714 3.55411 4.84022 30.91 1491.25 1023.550 17.85 17.80 11.708 3.55394 4.84080 30.92 1491.23 1023.555 18.15 18.10 11.708 3.55406 4.84094 30.92 1491.24 1023.557 18.45 18.40 11.705 3.55356 4.84065 30.92 1491.23 1023.557 18.75 18.70 11.704 3.55382 4.84119 30.92 1491.24 1023.562 19.05 19.00 11.704 3.55332 4.84045 30.92 1491.24 1023.559 19.35 19.29 11.702 3.55315 4.84058 30.92 1491.23 1023.561 19.65 19.59 11.703 3.55375 4.84121 30.92 1491.25 1023.566 19.95 19.89 11.704 3.55326 4.84046 30.91 1491.25 1023.563 20.25 20.19 11.705 3.55319 4.84021 30.91 1491.25 1023.562 20.55 20.49 11.705 3.55364 4.84078 30.92 1491.27 1023.567 20.85 20.79 11.704 3.55457 4.84220 30.93 1491.28 1023.576 21.15 21.09 11.706 3.55470 4.84218 30.93 1491.29 1023.577 21.45 21.39 11.702 3.55648 4.84510 30.95 1491.30 1023.595 21.75 21.68 11.705 3.55788 4.84659 30.96 1491.33 1023.604 22.05 21.98 11.709 3.55985 4.84877 30.97 1491.37 1023.617 22.35 22.28 11.717 3.56338 4.85252 31.00 1491.44 1023.638 22.65 22.58 11.718 3.56758 4.85803 31.04 1491.49 1023.669 22.95 22.88 11.730 3.57092 4.86104 31.06 1491.57 1023.686 23.25 23.18 11.741 3.57334 4.86282 31.08 1491.63 1023.696 23.55 23.48 11.752 3.57684 4.86613 31.10 1491.70 1023.714 23.85 23.78 11.764 3.57783 4.86599 31.10 1491.74 1023.714 24.15 24.07 11.770 3.57700 4.86409 31.09 1491.75 1023.704 24.45 24.37 11.777 3.57826 4.86477 31.09 1491.79 1023.708 24.75 24.67 11.790 3.58218 4.86839 31.12 1491.87 1023.728 25.05 24.97 11.819 3.58809 4.87267 31.15 1492.02 1023.750 25.35 25.27 11.846 3.59114 4.87314 31.16 1492.12 1023.751 25.65 25.57 11.867 3.59637 4.87744 31.19 1492.24 1023.774 25.95 25.87 11.884 3.59832 4.87783 31.20 1492.31 1023.775 26.25 26.16 11.889 3.59992 4.87935 31.21 1492.35 1023.784 26.55 26.46 11.904 3.60080 4.87863 31.20 1492.40 1023.780 26.85 26.76 11.922 3.60192 4.87769 31.20 1492.46 1023.774 27.15 27.06 11.930 3.60518 4.88116 31.22 1492.52 1023.794 27.45 27.36 11.934 3.60680 4.88273 31.24 1492.55 1023.803 27.75 27.66 11.928 3.60769 4.88481 31.25 1492.55 1023.817 28.05 27.96 11.940 3.60885 4.88481 31.25 1492.60 1023.817 28.35 28.26 11.929 3.60680 4.88337 31.24 1492.56 1023.811 28.65 28.55 11.913 3.60688 4.88568 31.25 1492.52 1023.827 28.95 28.85 11.910 3.60844 4.88812 31.27 1492.54 1023.842 29.25 29.15 11.891 3.61591 4.90082 31.36 1492.58 1023.915 29.55 29.45 11.880 3.61124 4.89596 31.32 1492.51 1023.891 29.85 29.75 11.870 3.60917 4.89446 31.31 1492.46 1023.885 30.15 30.05 11.843 3.60747 4.89575 31.32 1492.38 1023.896 30.45 30.35 11.822 3.60647 4.89714 31.33 1492.32 1023.907 30.75 30.65 11.803 3.60765 4.90133 31.35 1492.29 1023.933 31.05 30.94 11.782 3.60618 4.90205 31.36 1492.23 1023.941 31.35 31.24 11.766 3.60537 4.90315 31.36 1492.19 1023.950 31.65 31.54 11.749 3.60472 4.90453 31.37 1492.14 1023.960 31.95 31.84 11.733 3.60423 4.90603 31.38 1492.10 1023.971 32.25 32.14 11.721 3.60459 4.90802 31.39 1492.08 1023.985 32.55 32.44 11.708 3.60251 4.90699 31.38 1492.03 1023.982 32.85 32.74 11.693 3.60143 4.90752 31.38 1491.98 1023.987 33.15 33.03 11.676 3.59964 4.90739 31.38 1491.93 1023.990 33.45 33.33 11.666 3.59930 4.90823 31.39 1491.90 1023.997 33.75 33.63 11.654 3.59864 4.90893 31.39 1491.87 1024.003 34.05 33.93 11.640 3.59941 4.91180 31.41 1491.85 1024.021 34.35 34.23 11.632 3.59859 4.91182 31.41 1491.83 1024.023 34.65 34.53 11.624 3.59869 4.91307 31.42 1491.81 1024.032 34.95 34.83 11.611 3.59842 4.91439 31.42 1491.78 1024.042 35.25 35.12 11.603 3.59961 4.91710 31.44 1491.78 1024.059 35.55 35.42 11.598 3.60019 4.91853 31.45 1491.78 1024.069 35.85 35.72 11.599 3.60188 4.92072 31.47 1491.81 1024.082 36.15 36.02 11.593 3.60325 4.92338 31.49 1491.81 1024.099 36.45 36.32 11.588 3.60346 4.92443 31.49 1491.81 1024.106 36.75 36.62 11.589 3.61190 4.93583 31.57 1491.91 1024.170 37.05 36.92 11.621 3.61115 4.93049 31.54 1491.99 1024.139 37.35 37.21 11.627 3.61021 4.92837 31.52 1492.00 1024.128 37.65 37.51 11.612 3.60936 4.92918 31.53 1491.95 1024.135 37.95 37.81 11.604 3.60726 4.92743 31.51 1491.91 1024.127 38.25 38.11 11.584 3.60374 4.92525 31.50 1491.83 1024.119 38.55 38.41 11.548 3.60210 4.92788 31.51 1491.73 1024.138 38.85 38.71 11.518 3.60152 4.93114 31.53 1491.65 1024.160 39.15 39.01 11.492 3.60096 4.93389 31.55 1491.58 1024.179 39.45 39.31 11.473 3.60043 4.93582 31.56 1491.53 1024.193 39.65 39.50 11.468 3.60011 4.93604 31.56 1491.52 1024.195