*2019/08/26 15:30:14.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/27 18:35:37.000 END TIME : UTC 2016/10/27 18:35:55.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 94 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.95 2 Depth metres 0.15 28.5 3 Temperature 'deg C (ITS90)' 9.563 9.672 4 Conductivity S/m 0.692E-02 0.699E-02 5 Conductance:Specific S/m 0.999E-02 0.1011E-01 6 Salinity PSS-78 0.5E-01 0.5E-01 7 Speed:Sound m/s 1445.6 1446.46 8 Density kg/m^3 999.778 999.902 $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 : 483 LATITUDE : 49 9.51619 N ! (deg min) LONGITUDE : 122 56.75143 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 23:55:21 94 94 HDREDIT2 3.1.1 2017/12/13 11:31:17 ? ? CALIB 12.0 2019/08/26 15:30:14 94 94 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 23:55:20 -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_183537 % Cast time (UTC),2016-10-27 18:35:37 % Cast time (local),2016-10-27 18:35:37 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1586031 % Start longitude,-122.9458571 % Start altitude,-20.479999542236328 % Start GPS horizontal error(Meter),1.8500000238418579 % Start GPS vertical error(Meter),2.9300000667572021 % 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),150 % 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 9.563 0.00699 0.01011 0.05 1445.60 999.778 0.45 0.46 9.563 0.00699 0.01011 0.05 1445.60 999.779 0.75 0.77 9.567 0.00698 0.01010 0.05 1445.62 999.780 1.05 1.07 9.569 0.00698 0.01010 0.05 1445.64 999.781 1.35 1.38 9.574 0.00699 0.01010 0.05 1445.66 999.782 1.65 1.68 9.584 0.00699 0.01010 0.05 1445.71 999.783 1.95 1.99 9.598 0.00699 0.01010 0.05 1445.77 999.783 2.25 2.29 9.606 0.00699 0.01010 0.05 1445.81 999.784 2.55 2.60 9.607 0.00699 0.01010 0.05 1445.81 999.785 2.85 2.91 9.603 0.00699 0.01010 0.05 1445.80 999.787 3.15 3.21 9.604 0.00699 0.01010 0.05 1445.81 999.788 3.45 3.52 9.607 0.00699 0.01010 0.05 1445.83 999.790 3.75 3.82 9.609 0.00699 0.01009 0.05 1445.84 999.791 4.05 4.13 9.613 0.00699 0.01009 0.05 1445.86 999.792 4.35 4.43 9.619 0.00699 0.01009 0.05 1445.89 999.793 4.65 4.74 9.628 0.00698 0.01008 0.05 1445.93 999.794 4.95 5.05 9.632 0.00697 0.01006 0.05 1445.95 999.795 5.25 5.35 9.632 0.00696 0.01005 0.05 1445.96 999.796 5.55 5.66 9.629 0.00696 0.01005 0.05 1445.95 999.798 5.85 5.96 9.624 0.00697 0.01006 0.05 1445.93 999.800 6.15 6.27 9.624 0.00697 0.01007 0.05 1445.94 999.801 6.45 6.58 9.626 0.00697 0.01007 0.05 1445.95 999.802 6.75 6.88 9.625 0.00697 0.01006 0.05 1445.95 999.804 7.05 7.19 9.626 0.00697 0.01007 0.05 1445.96 999.805 7.35 7.49 9.626 0.00697 0.01006 0.05 1445.97 999.807 7.65 7.80 9.621 0.00696 0.01006 0.05 1445.95 999.808 7.95 8.11 9.618 0.00697 0.01007 0.05 1445.94 999.810 8.25 8.41 9.617 0.00698 0.01008 0.05 1445.94 999.812 8.55 8.72 9.617 0.00699 0.01009 0.05 1445.95 999.813 8.85 9.02 9.617 0.00698 0.01008 0.05 1445.95 999.815 9.15 9.33 9.615 0.00698 0.01008 0.05 1445.95 999.816 9.45 9.63 9.614 0.00699 0.01010 0.05 1445.95 999.818 9.75 9.94 9.612 0.00699 0.01010 0.05 1445.95 999.819 10.05 10.25 9.610 0.00699 0.01010 0.05 1445.94 999.821 10.35 10.55 9.609 0.00699 0.01010 0.05 1445.94 999.823 10.65 10.86 9.608 0.00699 0.01010 0.05 1445.94 999.824 10.95 11.16 9.604 0.00699 0.01010 0.05 1445.93 999.826 11.25 11.47 9.600 0.00699 0.01010 0.05 1445.92 999.828 11.55 11.78 9.599 0.00699 0.01010 0.05 1445.92 999.829 11.85 12.08 9.600 0.00699 0.01010 0.05 1445.93 999.830 12.15 12.39 9.603 0.00699 0.01010 0.05 1445.95 999.832 12.45 12.69 9.605 0.00699 0.01010 0.05 1445.96 999.833 12.75 13.00 9.606 0.00699 0.01010 0.05 1445.97 999.834 13.05 13.31 9.606 0.00699 0.01010 0.05 1445.98 999.836 13.35 13.61 9.606 0.00699 0.01010 0.05 1445.98 999.837 13.65 13.92 9.606 0.00699 0.01010 0.05 1445.99 999.839 13.95 14.22 9.605 0.00699 0.01010 0.05 1445.99 999.840 14.25 14.53 9.606 0.00699 0.01010 0.05 1445.99 999.841 14.55 14.84 9.607 0.00699 0.01010 0.05 1446.00 999.843 14.85 15.14 9.609 0.00699 0.01010 0.05 1446.02 999.844 15.15 15.45 9.611 0.00699 0.01009 0.05 1446.03 999.845 15.45 15.75 9.618 0.00699 0.01009 0.05 1446.06 999.846 15.75 16.06 9.628 0.00698 0.01008 0.05 1446.11 999.847 16.05 16.36 9.628 0.00697 0.01006 0.05 1446.11 999.848 16.35 16.67 9.625 0.00696 0.01005 0.05 1446.11 999.850 16.65 16.98 9.624 0.00696 0.01005 0.05 1446.11 999.851 16.95 17.28 9.625 0.00696 0.01005 0.05 1446.12 999.853 17.25 17.59 9.623 0.00697 0.01006 0.05 1446.11 999.854 17.55 17.89 9.626 0.00698 0.01007 0.05 1446.13 999.856 17.85 18.20 9.635 0.00697 0.01007 0.05 1446.17 999.856 18.15 18.50 9.636 0.00695 0.01003 0.05 1446.18 999.857 18.45 18.81 9.639 0.00694 0.01002 0.05 1446.20 999.858 18.75 19.12 9.648 0.00694 0.01001 0.05 1446.24 999.859 19.05 19.42 9.656 0.00694 0.01001 0.05 1446.27 999.860 19.35 19.73 9.656 0.00693 0.01000 0.05 1446.28 999.861 19.65 20.03 9.657 0.00693 0.01000 0.05 1446.29 999.863 19.95 20.34 9.662 0.00693 0.01000 0.05 1446.31 999.864 20.25 20.65 9.668 0.00693 0.01000 0.05 1446.34 999.865 20.55 20.95 9.670 0.00693 0.00999 0.05 1446.35 999.866 20.85 21.26 9.670 0.00693 0.00999 0.05 1446.36 999.867 21.15 21.56 9.672 0.00693 0.00999 0.05 1446.37 999.869 21.45 21.87 9.672 0.00693 0.00999 0.05 1446.38 999.870 21.75 22.18 9.671 0.00693 0.00999 0.05 1446.38 999.872 22.05 22.48 9.670 0.00693 0.00999 0.05 1446.38 999.873 22.35 22.79 9.671 0.00693 0.00999 0.05 1446.38 999.874 22.65 23.09 9.672 0.00693 0.00999 0.05 1446.39 999.876 22.95 23.40 9.671 0.00692 0.00999 0.05 1446.39 999.877 23.25 23.70 9.669 0.00693 0.00999 0.05 1446.39 999.879 23.55 24.01 9.669 0.00693 0.00999 0.05 1446.40 999.880 23.85 24.32 9.668 0.00693 0.00999 0.05 1446.40 999.882 24.15 24.62 9.667 0.00693 0.01000 0.05 1446.40 999.883 24.45 24.93 9.668 0.00693 0.01000 0.05 1446.41 999.885 24.75 25.23 9.669 0.00693 0.00999 0.05 1446.41 999.886 25.05 25.54 9.669 0.00693 0.01000 0.05 1446.42 999.888 25.35 25.85 9.672 0.00693 0.01000 0.05 1446.44 999.889 25.65 26.15 9.672 0.00694 0.01001 0.05 1446.44 999.890 25.95 26.46 9.669 0.00695 0.01002 0.05 1446.43 999.892 26.25 26.76 9.660 0.00695 0.01003 0.05 1446.40 999.894 26.55 27.07 9.656 0.00695 0.01002 0.05 1446.39 999.896 26.85 27.38 9.654 0.00694 0.01002 0.05 1446.39 999.897 27.15 27.68 9.658 0.00695 0.01002 0.05 1446.41 999.899 27.45 27.99 9.663 0.00695 0.01002 0.05 1446.44 999.900 27.75 28.29 9.664 0.00695 0.01002 0.05 1446.44 999.901 27.95 28.50 9.668 0.00695 0.01003 0.05 1446.46 999.902