*2019/08/26 15:30:12.66 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/24 18:06:15.000 END TIME : UTC 2016/10/24 18:06:36.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 107 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32 2 Depth metres 0.15 32.62 3 Temperature 'deg C (ITS90)' 9.957 9.984 4 Conductivity S/m 0.728E-02 0.74E-02 5 Conductance:Specific S/m 0.1042E-01 0.1058E-01 6 Salinity PSS-78 0.5E-01 0.5E-01 7 Speed:Sound m/s 1447.22 1447.69 8 Density kg/m^3 999.745 999.897 $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 : 435 LATITUDE : 49 9.45554 N ! (deg min) LONGITUDE : 122 56.76194 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 23:08:09 107 107 HDREDIT2 3.1.1 2017/12/13 11:31:15 ? ? CALIB 12.0 2019/08/26 15:30:12 107 107 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 23:08:09 -HEADER EDITS: 2017/12/13 11:31:15 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 15:30:12 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_20161024_180615 % Cast time (UTC),2016-10-24 18:06:15 % Cast time (local),2016-10-24 18:06:15 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1575924 % Start longitude,-122.9460324 % Start altitude,-17.020000457763672 % Start GPS horizontal error(Meter),1.940000057220459 % Start GPS vertical error(Meter),2.9700000286102295 % Start GPS number of satellites,8 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),141 % 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 9.967 0.00739 0.01057 0.05 1447.22 999.745 0.45 0.46 9.976 0.00739 0.01057 0.05 1447.25 999.746 0.75 0.77 9.971 0.00739 0.01056 0.05 1447.24 999.747 1.05 1.07 9.973 0.00739 0.01056 0.05 1447.25 999.749 1.35 1.38 9.975 0.00738 0.01055 0.05 1447.27 999.750 1.65 1.68 9.979 0.00737 0.01053 0.05 1447.29 999.751 1.95 1.99 9.982 0.00736 0.01052 0.05 1447.30 999.752 2.25 2.29 9.984 0.00734 0.01049 0.05 1447.32 999.753 2.55 2.60 9.981 0.00734 0.01049 0.05 1447.31 999.755 2.85 2.91 9.979 0.00733 0.01047 0.05 1447.30 999.756 3.15 3.21 9.977 0.00733 0.01047 0.05 1447.30 999.758 3.45 3.52 9.976 0.00733 0.01048 0.05 1447.30 999.760 3.75 3.82 9.974 0.00732 0.01047 0.05 1447.30 999.761 4.05 4.13 9.972 0.00733 0.01048 0.05 1447.30 999.763 4.35 4.43 9.972 0.00734 0.01049 0.05 1447.30 999.764 4.65 4.74 9.972 0.00734 0.01049 0.05 1447.31 999.766 4.95 5.05 9.971 0.00733 0.01049 0.05 1447.31 999.767 5.25 5.35 9.971 0.00733 0.01049 0.05 1447.31 999.769 5.55 5.66 9.970 0.00733 0.01048 0.05 1447.31 999.770 5.85 5.96 9.970 0.00734 0.01049 0.05 1447.32 999.772 6.15 6.27 9.969 0.00734 0.01049 0.05 1447.32 999.773 6.45 6.58 9.970 0.00735 0.01051 0.05 1447.33 999.775 6.75 6.88 9.970 0.00737 0.01053 0.05 1447.33 999.776 7.05 7.19 9.971 0.00738 0.01055 0.05 1447.34 999.778 7.35 7.49 9.971 0.00738 0.01055 0.05 1447.34 999.779 7.65 7.80 9.971 0.00738 0.01055 0.05 1447.35 999.780 7.95 8.11 9.971 0.00739 0.01056 0.05 1447.35 999.782 8.25 8.41 9.971 0.00739 0.01057 0.05 1447.36 999.783 8.55 8.72 9.972 0.00740 0.01057 0.05 1447.37 999.785 8.85 9.02 9.972 0.00740 0.01058 0.05 1447.37 999.786 9.15 9.33 9.971 0.00740 0.01058 0.05 1447.38 999.788 9.45 9.63 9.972 0.00740 0.01058 0.05 1447.38 999.789 9.75 9.94 9.972 0.00740 0.01058 0.05 1447.39 999.790 10.05 10.25 9.972 0.00740 0.01057 0.05 1447.39 999.792 10.35 10.55 9.971 0.00739 0.01056 0.05 1447.39 999.793 10.65 10.86 9.972 0.00738 0.01056 0.05 1447.40 999.795 10.95 11.16 9.972 0.00739 0.01056 0.05 1447.40 999.796 11.25 11.47 9.972 0.00739 0.01056 0.05 1447.41 999.798 11.55 11.78 9.972 0.00739 0.01056 0.05 1447.42 999.799 11.85 12.08 9.971 0.00739 0.01056 0.05 1447.42 999.800 12.15 12.39 9.973 0.00738 0.01056 0.05 1447.43 999.802 12.45 12.69 9.972 0.00738 0.01056 0.05 1447.43 999.803 12.75 13.00 9.972 0.00738 0.01055 0.05 1447.43 999.805 13.05 13.31 9.972 0.00739 0.01056 0.05 1447.44 999.806 13.35 13.61 9.972 0.00739 0.01056 0.05 1447.44 999.808 13.65 13.92 9.972 0.00738 0.01055 0.05 1447.45 999.809 13.95 14.22 9.972 0.00738 0.01056 0.05 1447.46 999.810 14.25 14.53 9.973 0.00738 0.01055 0.05 1447.46 999.812 14.55 14.84 9.973 0.00738 0.01055 0.05 1447.47 999.813 14.85 15.14 9.973 0.00738 0.01056 0.05 1447.47 999.815 15.15 15.45 9.972 0.00739 0.01057 0.05 1447.47 999.816 15.45 15.75 9.973 0.00739 0.01056 0.05 1447.48 999.818 15.75 16.06 9.972 0.00738 0.01056 0.05 1447.48 999.819 16.05 16.36 9.973 0.00739 0.01056 0.05 1447.49 999.820 16.35 16.67 9.973 0.00739 0.01056 0.05 1447.50 999.822 16.65 16.98 9.974 0.00739 0.01056 0.05 1447.51 999.823 16.95 17.28 9.974 0.00739 0.01056 0.05 1447.51 999.825 17.25 17.59 9.974 0.00738 0.01056 0.05 1447.51 999.826 17.55 17.89 9.973 0.00738 0.01056 0.05 1447.52 999.828 17.85 18.20 9.973 0.00738 0.01055 0.05 1447.52 999.829 18.15 18.51 9.973 0.00738 0.01056 0.05 1447.53 999.830 18.45 18.81 9.973 0.00739 0.01056 0.05 1447.53 999.832 18.75 19.12 9.972 0.00738 0.01056 0.05 1447.53 999.833 19.05 19.42 9.972 0.00738 0.01055 0.05 1447.54 999.835 19.35 19.73 9.969 0.00737 0.01054 0.05 1447.53 999.836 19.65 20.04 9.969 0.00738 0.01055 0.05 1447.54 999.838 19.95 20.34 9.968 0.00739 0.01056 0.05 1447.54 999.839 20.25 20.65 9.967 0.00738 0.01055 0.05 1447.54 999.841 20.55 20.95 9.967 0.00738 0.01056 0.05 1447.54 999.842 20.85 21.26 9.967 0.00738 0.01055 0.05 1447.55 999.844 21.15 21.56 9.969 0.00738 0.01055 0.05 1447.56 999.845 21.45 21.87 9.970 0.00737 0.01054 0.05 1447.57 999.846 21.75 22.18 9.970 0.00737 0.01054 0.05 1447.57 999.848 22.05 22.48 9.970 0.00736 0.01053 0.05 1447.57 999.849 22.35 22.79 9.969 0.00737 0.01054 0.05 1447.58 999.851 22.65 23.09 9.969 0.00737 0.01054 0.05 1447.58 999.852 22.95 23.40 9.970 0.00737 0.01054 0.05 1447.59 999.854 23.25 23.70 9.969 0.00738 0.01055 0.05 1447.59 999.855 23.55 24.01 9.971 0.00737 0.01054 0.05 1447.60 999.856 23.85 24.32 9.970 0.00736 0.01052 0.05 1447.61 999.858 24.15 24.62 9.971 0.00736 0.01052 0.05 1447.61 999.859 24.45 24.93 9.969 0.00736 0.01053 0.05 1447.61 999.861 24.75 25.23 9.971 0.00736 0.01052 0.05 1447.62 999.862 25.05 25.54 9.972 0.00735 0.01051 0.05 1447.63 999.863 25.35 25.85 9.972 0.00735 0.01050 0.05 1447.63 999.865 25.65 26.15 9.970 0.00735 0.01051 0.05 1447.63 999.866 25.95 26.46 9.969 0.00736 0.01052 0.05 1447.63 999.868 26.25 26.76 9.966 0.00735 0.01051 0.05 1447.63 999.870 26.55 27.07 9.966 0.00734 0.01050 0.05 1447.63 999.871 26.85 27.38 9.968 0.00734 0.01049 0.05 1447.64 999.872 27.15 27.68 9.969 0.00734 0.01049 0.05 1447.65 999.874 27.45 27.99 9.968 0.00733 0.01049 0.05 1447.66 999.875 27.75 28.29 9.969 0.00735 0.01051 0.05 1447.66 999.876 28.05 28.60 9.970 0.00735 0.01050 0.05 1447.67 999.878 28.35 28.91 9.970 0.00734 0.01050 0.05 1447.67 999.879 28.65 29.21 9.967 0.00733 0.01049 0.05 1447.67 999.881 28.95 29.52 9.965 0.00732 0.01047 0.05 1447.67 999.882 29.25 29.82 9.966 0.00731 0.01045 0.05 1447.67 999.884 29.55 30.13 9.967 0.00728 0.01042 0.05 1447.68 999.885 29.85 30.43 9.961 0.00728 0.01042 0.05 1447.66 999.887 30.15 30.74 9.958 0.00731 0.01046 0.05 1447.66 999.889 30.45 31.05 9.957 0.00732 0.01047 0.05 1447.66 999.890 30.75 31.35 9.957 0.00731 0.01046 0.05 1447.66 999.892 31.05 31.66 9.958 0.00729 0.01042 0.05 1447.67 999.893 31.35 31.96 9.957 0.00731 0.01045 0.05 1447.67 999.894 31.65 32.27 9.959 0.00733 0.01048 0.05 1447.68 999.896 32.00 32.62 9.960 0.00731 0.01046 0.05 1447.69 999.897