*2019/08/26 15:30:13.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/25 18:59:39.000 END TIME : UTC 2016/10/25 18:59:58.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 100 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.83 2 Depth metres 0.15 30.41 3 Temperature 'deg C (ITS90)' 9.817 9.949 4 Conductivity S/m 0.7619999E-02 0.774E-02 5 Conductance:Specific S/m 0.1095E-01 0.1111E-01 6 Salinity PSS-78 0.5E-01 0.5E-01 7 Speed:Sound m/s 1446.72 1447.17 8 Density kg/m^3 999.748 999.9 $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 : 453 LATITUDE : 49 9.44653 N ! (deg min) LONGITUDE : 122 56.78169 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 23:25:59 100 100 HDREDIT2 3.1.1 2017/12/13 11:31:16 ? ? CALIB 12.0 2019/08/26 15:30:13 100 100 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 23:25:58 -HEADER EDITS: 2017/12/13 11:31:16 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 15:30:13 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_20161025_185939 % Cast time (UTC),2016-10-25 18:59:39 % Cast time (local),2016-10-25 18:59:39 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1574422 % Start longitude,-122.9463615 % Start altitude,-16.950000762939453 % Start GPS horizontal error(Meter),2.940000057220459 % Start GPS vertical error(Meter),5.9600000381469727 % Start GPS number of satellites,4 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),113.8 % 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 9.949 0.00769 0.01101 0.05 1447.14 999.748 0.45 0.46 9.842 0.00769 0.01104 0.05 1446.72 999.759 0.75 0.77 9.843 0.00769 0.01104 0.05 1446.73 999.760 1.05 1.07 9.842 0.00769 0.01104 0.05 1446.73 999.762 1.35 1.38 9.843 0.00770 0.01105 0.05 1446.74 999.763 1.65 1.68 9.845 0.00771 0.01106 0.05 1446.76 999.764 1.95 1.99 9.848 0.00771 0.01106 0.05 1446.77 999.766 2.25 2.29 9.849 0.00771 0.01106 0.05 1446.78 999.767 2.55 2.60 9.849 0.00771 0.01106 0.05 1446.78 999.768 2.85 2.91 9.850 0.00771 0.01107 0.05 1446.79 999.770 3.15 3.21 9.849 0.00772 0.01107 0.05 1446.80 999.771 3.45 3.52 9.849 0.00772 0.01107 0.05 1446.80 999.773 3.75 3.82 9.849 0.00772 0.01108 0.05 1446.80 999.774 4.05 4.13 9.848 0.00773 0.01109 0.05 1446.81 999.776 4.35 4.43 9.848 0.00773 0.01109 0.05 1446.81 999.777 4.65 4.74 9.847 0.00772 0.01108 0.05 1446.81 999.779 4.95 5.05 9.843 0.00772 0.01108 0.05 1446.80 999.780 5.25 5.35 9.841 0.00773 0.01109 0.05 1446.80 999.782 5.55 5.66 9.839 0.00773 0.01109 0.05 1446.79 999.784 5.85 5.96 9.838 0.00773 0.01110 0.05 1446.80 999.785 6.15 6.27 9.838 0.00773 0.01110 0.05 1446.80 999.787 6.45 6.58 9.838 0.00773 0.01109 0.05 1446.81 999.788 6.75 6.88 9.839 0.00773 0.01109 0.05 1446.81 999.789 7.05 7.19 9.840 0.00774 0.01111 0.05 1446.82 999.791 7.35 7.49 9.842 0.00773 0.01110 0.05 1446.83 999.792 7.65 7.80 9.841 0.00772 0.01109 0.05 1446.83 999.794 7.95 8.11 9.836 0.00772 0.01108 0.05 1446.82 999.795 8.25 8.41 9.832 0.00772 0.01109 0.05 1446.81 999.797 8.55 8.72 9.827 0.00773 0.01109 0.05 1446.80 999.799 8.85 9.02 9.824 0.00772 0.01108 0.05 1446.79 999.801 9.15 9.33 9.824 0.00767 0.01101 0.05 1446.79 999.802 9.45 9.63 9.824 0.00765 0.01099 0.05 1446.80 999.803 9.75 9.94 9.825 0.00765 0.01099 0.05 1446.81 999.805 10.05 10.25 9.829 0.00766 0.01099 0.05 1446.83 999.806 10.35 10.55 9.832 0.00769 0.01104 0.05 1446.84 999.807 10.65 10.86 9.833 0.00770 0.01105 0.05 1446.85 999.809 10.95 11.16 9.833 0.00770 0.01106 0.05 1446.86 999.810 11.25 11.47 9.834 0.00770 0.01106 0.05 1446.86 999.811 11.55 11.78 9.834 0.00771 0.01106 0.05 1446.87 999.813 11.85 12.08 9.833 0.00772 0.01107 0.05 1446.87 999.814 12.15 12.39 9.833 0.00771 0.01107 0.05 1446.88 999.816 12.45 12.69 9.831 0.00771 0.01107 0.05 1446.87 999.817 12.75 13.00 9.829 0.00771 0.01107 0.05 1446.87 999.819 13.05 13.31 9.828 0.00770 0.01106 0.05 1446.87 999.820 13.35 13.61 9.828 0.00771 0.01106 0.05 1446.88 999.822 13.65 13.92 9.833 0.00771 0.01107 0.05 1446.90 999.823 13.95 14.22 9.837 0.00772 0.01108 0.05 1446.92 999.824 14.25 14.53 9.837 0.00773 0.01109 0.05 1446.93 999.825 14.55 14.84 9.837 0.00772 0.01108 0.05 1446.93 999.827 14.85 15.14 9.837 0.00772 0.01108 0.05 1446.93 999.828 15.15 15.45 9.838 0.00772 0.01108 0.05 1446.94 999.830 15.45 15.75 9.838 0.00772 0.01109 0.05 1446.95 999.831 15.75 16.06 9.835 0.00772 0.01108 0.05 1446.94 999.833 16.05 16.36 9.833 0.00772 0.01108 0.05 1446.94 999.834 16.35 16.67 9.830 0.00771 0.01107 0.05 1446.93 999.836 16.65 16.98 9.822 0.00771 0.01107 0.05 1446.90 999.838 16.95 17.28 9.818 0.00766 0.01101 0.05 1446.89 999.840 17.25 17.59 9.817 0.00765 0.01098 0.05 1446.89 999.841 17.55 17.89 9.818 0.00764 0.01097 0.05 1446.90 999.842 17.85 18.20 9.819 0.00766 0.01100 0.05 1446.91 999.844 18.15 18.50 9.819 0.00764 0.01097 0.05 1446.91 999.845 18.45 18.81 9.818 0.00762 0.01095 0.05 1446.92 999.847 18.75 19.12 9.818 0.00764 0.01097 0.05 1446.92 999.848 19.05 19.42 9.819 0.00764 0.01097 0.05 1446.93 999.850 19.35 19.73 9.824 0.00765 0.01099 0.05 1446.95 999.851 19.65 20.04 9.829 0.00768 0.01102 0.05 1446.98 999.852 19.95 20.34 9.831 0.00766 0.01100 0.05 1446.99 999.853 20.25 20.65 9.832 0.00769 0.01103 0.05 1447.00 999.854 20.55 20.95 9.835 0.00772 0.01108 0.05 1447.02 999.856 20.85 21.26 9.835 0.00772 0.01108 0.05 1447.02 999.857 21.15 21.56 9.834 0.00770 0.01105 0.05 1447.02 999.859 21.45 21.87 9.833 0.00769 0.01104 0.05 1447.03 999.860 21.75 22.18 9.834 0.00770 0.01105 0.05 1447.03 999.861 22.05 22.48 9.833 0.00771 0.01107 0.05 1447.03 999.863 22.35 22.79 9.833 0.00770 0.01105 0.05 1447.04 999.864 22.65 23.09 9.833 0.00770 0.01106 0.05 1447.04 999.866 22.95 23.40 9.831 0.00772 0.01108 0.05 1447.04 999.868 23.25 23.70 9.829 0.00771 0.01106 0.05 1447.04 999.869 23.55 24.01 9.829 0.00768 0.01102 0.05 1447.04 999.870 23.85 24.32 9.830 0.00767 0.01101 0.05 1447.05 999.872 24.15 24.62 9.831 0.00766 0.01099 0.05 1447.06 999.873 24.45 24.93 9.831 0.00765 0.01099 0.05 1447.06 999.874 24.75 25.23 9.829 0.00766 0.01100 0.05 1447.06 999.876 25.05 25.54 9.826 0.00766 0.01099 0.05 1447.05 999.878 25.35 25.85 9.825 0.00766 0.01099 0.05 1447.05 999.879 25.65 26.15 9.825 0.00765 0.01098 0.05 1447.06 999.881 25.95 26.46 9.826 0.00765 0.01098 0.05 1447.07 999.882 26.25 26.76 9.825 0.00766 0.01100 0.05 1447.07 999.884 26.55 27.07 9.825 0.00766 0.01100 0.05 1447.07 999.885 26.85 27.38 9.827 0.00769 0.01104 0.05 1447.09 999.886 27.15 27.68 9.831 0.00771 0.01107 0.05 1447.11 999.888 27.45 27.99 9.835 0.00773 0.01109 0.05 1447.13 999.889 27.75 28.29 9.840 0.00772 0.01107 0.05 1447.15 999.890 28.05 28.60 9.840 0.00771 0.01106 0.05 1447.16 999.891 28.35 28.91 9.838 0.00766 0.01100 0.05 1447.15 999.892 28.65 29.21 9.832 0.00767 0.01101 0.05 1447.13 999.894 28.95 29.52 9.831 0.00768 0.01102 0.05 1447.13 999.896 29.25 29.82 9.831 0.00768 0.01103 0.05 1447.14 999.897 29.55 30.13 9.832 0.00767 0.01101 0.05 1447.15 999.899 29.83 30.41 9.837 0.00767 0.01101 0.05 1447.17 999.900