*2019/08/26 15:30:14.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/27 17:32:33.000 END TIME : UTC 2016/10/27 17:32:53.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 105 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.43 2 Depth metres 0.15 32.05 3 Temperature 'deg C (ITS90)' 9.712 9.808 4 Conductivity S/m 0.637E-02 0.698E-02 5 Conductance:Specific S/m 0.916E-02 0.1006E-01 6 Salinity PSS-78 0.4E-01 0.5E-01 7 Speed:Sound m/s 1446.55 1446.8 8 Density kg/m^3 999.754 999.915 $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 : 2016-98 AGENCY : Canadian Hydrographic Service COUNTRY : Canada PROJECT : CHS CTD Data Acquisition SCIENTIST : Dangerfield N. *LOCATION EVENT NUMBER : 481 LATITUDE : 49 9.44755 N ! (deg min) LONGITUDE : 122 56.75540 W ! (deg min) *INSTRUMENT TYPE : SonTek CTD MODEL : CastAway SERIAL NUMBER : CC1606003 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------- ------ ---------- -------- --------- --------- READ_CHS_CTDS 1.0 2017/12/08 23:53:24 105 105 HDREDIT2 3.1.1 2017/12/13 11:31:17 ? ? CALIB 12.0 2019/08/26 15:30:14 105 105 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 23:53:24 -HEADER EDITS: 2017/12/13 11:31:17 Applied edit header: P:\Cruise_Data_Processing\CHS_data\test\Docs\CHS-ref-HDR.TXT Channel 1: Pressure [decibar] Format: F10.3 ==> F7.2 Channel 2: Depth [metres] Format: F10.3 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F10.3 ==> F8.3 Channel 4: Conductivity [mS/cm] Format: F10.3 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F10.3 ==> F7.2 Channel 8: Density [kg/m^3] Format: F10.3 ==> F9.3 Channel 5: Conductance:Specific [mS/cm] Format: F10.3 ==> F9.1 Channel 7: Speed:Sound [m/s] Format: F10.3 ==> F8.2 -CALIB parameters: 2019/08/26 15:30:14 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = Q:\OSD_DataProcessing\Cruise_data\conductivity-corrections\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 $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 and some quality control checks were made. Resolution and Accuracy as stated by the manufacturer is: Channel Resolution Accuracy Pressure 0.01 db 0.25 db Depth 0.01 m 0.25 m Temperature 0.01 degrees C 0.05 degrees C Conductivity 1 mS/cm 5 mS/cm Conductance:Specific 1 mS/cm 5 mS/cm Salinity 0.01 (PSS-78) 0.1 (PSS-78) Speed:Sound 0.01 m/s 0.15 m/s Density 0.004 kg/m3 0.02 kg/m3 GPS 10m Density is derived based on temperature resolution and accuracy using the International Equation of State for sea water (EOS-80). Depth and Specific Conductance are derived using the International Equation of State for sea water (EOS-80). Salinity was calculated using the 1978 Practical Salinity Scale. Sound Speed was calculated using the method of Chen-Millero, 1977. Original data file header: % Device,CC1606003 % File name,CC1606003_20161027_173233 % Cast time (UTC),2016-10-27 17:32:33 % Cast time (local),2016-10-27 17:32:33 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1574592 % Start longitude,-122.9459234 % Start altitude,-19.969999313354492 % Start GPS horizontal error(Meter),3.4300000667572021 % Start GPS vertical error(Meter),4.4099998474121094 % Start GPS number of satellites,6 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),82.4 % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2016-03-01 % Temperature calibration date,2016-02-23 % Pressure calibration date,2016-02-12 % For more information about the CastAway CTD see document "CastAway CTD Principles of Operation.pdf”. *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 9.803 0.00638 0.00917 0.04 1446.55 999.754 0.45 0.46 9.803 0.00638 0.00917 0.04 1446.56 999.756 0.75 0.77 9.805 0.00638 0.00917 0.04 1446.57 999.757 1.05 1.07 9.805 0.00638 0.00917 0.04 1446.58 999.758 1.35 1.38 9.805 0.00638 0.00917 0.04 1446.58 999.760 1.65 1.68 9.807 0.00638 0.00917 0.04 1446.59 999.761 1.95 1.99 9.808 0.00639 0.00917 0.04 1446.60 999.762 2.25 2.29 9.807 0.00639 0.00917 0.04 1446.60 999.764 2.55 2.60 9.806 0.00638 0.00917 0.04 1446.61 999.765 2.85 2.91 9.803 0.00639 0.00918 0.04 1446.60 999.767 3.15 3.21 9.804 0.00639 0.00918 0.04 1446.60 999.768 3.45 3.52 9.803 0.00639 0.00918 0.04 1446.61 999.770 3.75 3.82 9.804 0.00639 0.00918 0.04 1446.62 999.771 4.05 4.13 9.804 0.00639 0.00918 0.04 1446.62 999.773 4.35 4.43 9.803 0.00639 0.00919 0.04 1446.62 999.774 4.65 4.74 9.802 0.00639 0.00919 0.04 1446.62 999.776 4.95 5.05 9.802 0.00639 0.00918 0.04 1446.63 999.777 5.25 5.35 9.802 0.00639 0.00918 0.04 1446.63 999.779 5.55 5.66 9.803 0.00638 0.00917 0.04 1446.64 999.780 5.85 5.96 9.804 0.00638 0.00917 0.04 1446.65 999.781 6.15 6.27 9.805 0.00637 0.00916 0.04 1446.65 999.783 6.45 6.58 9.804 0.00637 0.00916 0.04 1446.66 999.784 6.75 6.88 9.803 0.00637 0.00916 0.04 1446.66 999.786 7.05 7.19 9.803 0.00638 0.00917 0.04 1446.66 999.787 7.35 7.49 9.803 0.00638 0.00916 0.04 1446.67 999.788 7.65 7.80 9.803 0.00638 0.00917 0.04 1446.67 999.790 7.95 8.11 9.803 0.00638 0.00916 0.04 1446.68 999.791 8.25 8.41 9.804 0.00637 0.00916 0.04 1446.69 999.793 8.55 8.72 9.804 0.00638 0.00916 0.04 1446.69 999.794 8.85 9.02 9.803 0.00638 0.00916 0.04 1446.69 999.796 9.15 9.33 9.802 0.00638 0.00917 0.04 1446.69 999.797 9.45 9.63 9.803 0.00639 0.00917 0.04 1446.70 999.799 9.75 9.94 9.802 0.00639 0.00918 0.04 1446.70 999.800 10.05 10.25 9.803 0.00640 0.00919 0.04 1446.71 999.802 10.35 10.55 9.804 0.00639 0.00918 0.04 1446.72 999.803 10.65 10.86 9.804 0.00639 0.00918 0.04 1446.72 999.804 10.95 11.16 9.803 0.00639 0.00918 0.04 1446.73 999.806 11.25 11.47 9.804 0.00639 0.00918 0.04 1446.73 999.807 11.55 11.78 9.804 0.00639 0.00918 0.04 1446.74 999.809 11.85 12.08 9.803 0.00639 0.00918 0.04 1446.74 999.810 12.15 12.39 9.802 0.00640 0.00919 0.04 1446.74 999.812 12.45 12.69 9.801 0.00640 0.00919 0.04 1446.74 999.813 12.75 13.00 9.800 0.00640 0.00919 0.04 1446.74 999.815 13.05 13.31 9.800 0.00640 0.00919 0.04 1446.75 999.816 13.35 13.61 9.800 0.00640 0.00919 0.04 1446.75 999.818 13.65 13.92 9.800 0.00640 0.00920 0.04 1446.76 999.819 13.95 14.22 9.798 0.00642 0.00923 0.04 1446.75 999.821 14.25 14.53 9.796 0.00642 0.00923 0.04 1446.75 999.822 14.55 14.84 9.795 0.00643 0.00924 0.04 1446.75 999.824 14.85 15.14 9.794 0.00643 0.00925 0.04 1446.75 999.825 15.15 15.45 9.792 0.00645 0.00927 0.04 1446.75 999.827 15.45 15.75 9.791 0.00645 0.00927 0.04 1446.75 999.829 15.75 16.06 9.789 0.00645 0.00927 0.04 1446.75 999.830 16.05 16.36 9.786 0.00646 0.00929 0.04 1446.74 999.832 16.35 16.67 9.785 0.00647 0.00930 0.04 1446.74 999.834 16.65 16.98 9.786 0.00647 0.00930 0.04 1446.75 999.835 16.95 17.28 9.786 0.00647 0.00930 0.04 1446.76 999.836 17.25 17.59 9.786 0.00648 0.00931 0.04 1446.76 999.838 17.55 17.89 9.786 0.00648 0.00932 0.04 1446.77 999.839 17.85 18.20 9.786 0.00648 0.00931 0.04 1446.77 999.841 18.15 18.51 9.785 0.00648 0.00931 0.04 1446.77 999.842 18.45 18.81 9.783 0.00648 0.00931 0.04 1446.77 999.844 18.75 19.12 9.779 0.00649 0.00933 0.04 1446.76 999.846 19.05 19.42 9.777 0.00650 0.00934 0.04 1446.75 999.847 19.35 19.73 9.776 0.00652 0.00938 0.04 1446.75 999.849 19.65 20.04 9.772 0.00652 0.00938 0.04 1446.74 999.851 19.95 20.34 9.768 0.00657 0.00945 0.04 1446.73 999.853 20.25 20.65 9.764 0.00661 0.00951 0.04 1446.72 999.855 20.55 20.95 9.765 0.00661 0.00951 0.04 1446.73 999.856 20.85 21.26 9.765 0.00662 0.00953 0.04 1446.73 999.858 21.15 21.56 9.765 0.00663 0.00954 0.04 1446.74 999.859 21.45 21.87 9.765 0.00664 0.00955 0.04 1446.74 999.861 21.75 22.18 9.762 0.00664 0.00955 0.04 1446.73 999.862 22.05 22.48 9.758 0.00663 0.00953 0.04 1446.73 999.864 22.35 22.79 9.758 0.00658 0.00947 0.04 1446.73 999.865 22.65 23.09 9.760 0.00657 0.00946 0.04 1446.74 999.866 22.95 23.40 9.762 0.00658 0.00946 0.04 1446.75 999.868 23.25 23.70 9.762 0.00660 0.00949 0.04 1446.76 999.869 23.55 24.01 9.761 0.00660 0.00949 0.04 1446.76 999.871 23.85 24.32 9.760 0.00659 0.00948 0.04 1446.76 999.872 24.15 24.62 9.756 0.00661 0.00950 0.04 1446.75 999.874 24.45 24.93 9.754 0.00669 0.00962 0.04 1446.75 999.876 24.75 25.23 9.755 0.00671 0.00965 0.04 1446.76 999.878 25.05 25.54 9.753 0.00669 0.00963 0.04 1446.75 999.879 25.35 25.85 9.750 0.00667 0.00959 0.04 1446.75 999.881 25.65 26.15 9.748 0.00667 0.00959 0.04 1446.74 999.882 25.95 26.46 9.750 0.00667 0.00960 0.04 1446.75 999.884 26.25 26.76 9.751 0.00669 0.00963 0.04 1446.77 999.885 26.55 27.07 9.749 0.00671 0.00965 0.04 1446.76 999.887 26.85 27.38 9.747 0.00670 0.00964 0.04 1446.76 999.888 27.15 27.68 9.746 0.00672 0.00967 0.05 1446.76 999.890 27.45 27.99 9.745 0.00673 0.00969 0.05 1446.76 999.891 27.75 28.29 9.744 0.00673 0.00969 0.05 1446.76 999.893 28.05 28.60 9.746 0.00673 0.00968 0.05 1446.77 999.894 28.35 28.91 9.748 0.00670 0.00964 0.04 1446.79 999.895 28.65 29.21 9.750 0.00673 0.00968 0.05 1446.80 999.897 28.95 29.52 9.749 0.00685 0.00985 0.05 1446.80 999.899 29.25 29.82 9.736 0.00691 0.00995 0.05 1446.75 999.902 29.55 30.13 9.729 0.00694 0.00999 0.05 1446.73 999.904 29.85 30.43 9.718 0.00694 0.00999 0.05 1446.69 999.906 30.15 30.74 9.715 0.00692 0.00996 0.05 1446.68 999.908 30.45 31.05 9.715 0.00695 0.01000 0.05 1446.69 999.910 30.75 31.35 9.712 0.00696 0.01002 0.05 1446.68 999.911 31.05 31.66 9.712 0.00697 0.01004 0.05 1446.69 999.913 31.43 32.05 9.712 0.00698 0.01006 0.05 1446.69 999.915