*2017/12/13 11:31:18.05 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/19 00:49:06.000 END TIME : UTC 2016/07/19 00:49:38.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 165 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 49.29 2 Depth metres 0.15 49.189 3 Temperature 'deg C (ITS90)' 11.258 14.122 4 Salinity PSS-78 28.015 29.64 5 Speed:Sound m/s 1488.637 1495.699 6 Density kg/m^3 1020.775 1022.784 $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 ' ' 7 F R4 2 5 -99 ' ' 8 F R4 2 6 -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 : 611 LATITUDE : 48 46.19591 N ! (deg min) LONGITUDE : 123 33.94379 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 2017/12/09 02:01:29 165 165 HDREDIT2 3.1.1 2017/12/13 11:31:18 ? ? $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 02:01:29 -HEADER EDITS: 2017/12/13 11:31:18 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: Salinity [PSS-78] Format: F10.3 ==> F7.2 Channel 6: Density [kg/m^3] Format: F10.3 ==> F9.3 Channel 5: Speed:Sound [m/s] Format: F10.3 ==> F8.2 $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_20160719_004906 % Cast time (UTC),2016-07-19 00:49:06 % Cast time (local),2016-07-19 00:49:06 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7699319 % Start longitude,-123.5657299 % Start altitude,-19.520000457763672 % Start GPS horizontal error(Meter),2.4600000381469727 % Start GPS vertical error(Meter),3.7300000190734863 % Start GPS number of satellites,5 % End latitude,48.7698943 % End longitude,-123.5661077 % End altitude,-10.449999809265137 % End GPS horizontal error(Meter),16.729999542236328 % End GPS vertical error(Meter),12.460000038146973 % End GPS number of satellites,4 % Cast duration (Seconds),106.2 % 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”. !--1--- --2--- ---3--- --4--- ---5--- ---6---- !Pressu Depth Tempera Salini Speed: Density !re ture ty Sound !------ ------ ------- ------ ------- -------- *END OF HEADER 0.15 0.15 14.114 28.02 1495.67 1020.779 0.45 0.45 14.122 28.02 1495.70 1020.775 0.75 0.75 14.121 28.02 1495.70 1020.776 1.05 1.05 14.117 28.02 1495.70 1020.783 1.35 1.35 14.101 28.03 1495.66 1020.796 1.65 1.65 14.075 28.04 1495.59 1020.809 1.95 1.95 14.044 28.06 1495.51 1020.829 2.25 2.25 14.016 28.07 1495.44 1020.848 2.55 2.55 13.991 28.09 1495.39 1020.868 2.85 2.85 13.978 28.10 1495.36 1020.879 3.15 3.15 13.961 28.11 1495.31 1020.889 3.45 3.44 13.944 28.11 1495.27 1020.895 3.75 3.75 13.936 28.11 1495.25 1020.902 4.05 4.04 13.947 28.10 1495.28 1020.891 4.35 4.34 13.956 28.10 1495.31 1020.891 4.65 4.64 13.951 28.11 1495.31 1020.899 4.95 4.94 13.948 28.11 1495.30 1020.900 5.25 5.24 13.946 28.11 1495.31 1020.907 5.55 5.54 13.953 28.11 1495.34 1020.905 5.85 5.84 13.947 28.12 1495.33 1020.912 6.15 6.14 13.928 28.13 1495.28 1020.927 6.45 6.44 13.901 28.14 1495.22 1020.945 6.75 6.74 13.880 28.15 1495.16 1020.956 7.05 7.04 13.873 28.14 1495.13 1020.952 7.35 7.34 13.885 28.13 1495.16 1020.941 7.65 7.64 13.884 28.14 1495.17 1020.948 7.95 7.94 13.877 28.13 1495.15 1020.948 8.25 8.24 13.865 28.14 1495.12 1020.957 8.55 8.54 13.849 28.14 1495.08 1020.966 8.85 8.84 13.837 28.15 1495.05 1020.976 9.15 9.14 13.826 28.16 1495.03 1020.987 9.45 9.44 13.820 28.16 1495.01 1020.985 9.75 9.74 13.816 28.16 1495.01 1020.992 10.05 10.04 13.806 28.17 1494.99 1021.002 10.35 10.34 13.788 28.18 1494.95 1021.016 10.65 10.63 13.780 28.19 1494.93 1021.020 10.95 10.93 13.774 28.19 1494.92 1021.025 11.25 11.23 13.759 28.20 1494.89 1021.036 11.55 11.53 13.754 28.20 1494.87 1021.038 11.85 11.83 13.752 28.20 1494.87 1021.042 12.15 12.13 13.750 28.20 1494.87 1021.045 12.45 12.43 13.753 28.20 1494.89 1021.044 12.75 12.73 13.759 28.20 1494.91 1021.044 13.05 13.03 13.762 28.20 1494.92 1021.043 13.35 13.33 13.767 28.20 1494.94 1021.042 13.65 13.63 13.769 28.19 1494.95 1021.039 13.95 13.93 13.776 28.19 1494.97 1021.036 14.25 14.23 13.785 28.18 1495.00 1021.033 14.55 14.53 13.790 28.18 1495.02 1021.029 14.85 14.83 13.793 28.18 1495.03 1021.030 15.15 15.13 13.795 28.17 1495.04 1021.027 15.45 15.43 13.799 28.17 1495.06 1021.029 15.75 15.73 13.803 28.17 1495.07 1021.025 16.05 16.03 13.812 28.16 1495.10 1021.018 16.35 16.32 13.823 28.16 1495.13 1021.013 16.65 16.62 13.832 28.15 1495.16 1021.007 16.95 16.93 13.844 28.14 1495.20 1021.001 17.25 17.22 13.849 28.14 1495.21 1021.001 17.55 17.52 13.848 28.14 1495.22 1021.005 17.85 17.82 13.841 28.14 1495.20 1021.006 18.15 18.12 13.831 28.15 1495.18 1021.016 18.45 18.42 13.821 28.16 1495.16 1021.025 18.75 18.72 13.801 28.17 1495.11 1021.038 19.05 19.02 13.776 28.18 1495.05 1021.055 19.35 19.32 13.757 28.19 1495.01 1021.067 19.65 19.62 13.735 28.21 1494.96 1021.087 19.95 19.92 13.724 28.21 1494.92 1021.092 20.25 20.22 13.703 28.23 1494.88 1021.108 20.55 20.52 13.653 28.26 1494.76 1021.149 20.85 20.82 13.611 28.30 1494.66 1021.184 21.15 21.12 13.595 28.30 1494.62 1021.188 21.45 21.42 13.590 28.30 1494.60 1021.191 21.75 21.72 13.591 28.29 1494.61 1021.190 22.05 22.02 13.587 28.30 1494.61 1021.196 22.35 22.32 13.575 28.30 1494.57 1021.199 22.65 22.61 13.567 28.31 1494.57 1021.211 22.95 22.91 13.563 28.31 1494.56 1021.215 23.25 23.21 13.571 28.31 1494.58 1021.211 23.55 23.51 13.574 28.31 1494.60 1021.213 23.85 23.81 13.569 28.32 1494.60 1021.221 24.15 24.11 13.574 28.30 1494.61 1021.212 24.45 24.41 13.581 28.30 1494.63 1021.210 24.75 24.71 13.593 28.30 1494.67 1021.207 25.05 25.01 13.610 28.28 1494.71 1021.192 25.35 25.31 13.619 28.28 1494.74 1021.188 25.65 25.61 13.620 28.28 1494.75 1021.190 25.95 25.91 13.609 28.29 1494.73 1021.200 26.25 26.21 13.596 28.30 1494.71 1021.212 26.55 26.51 13.579 28.30 1494.66 1021.220 26.85 26.81 13.566 28.31 1494.63 1021.228 27.15 27.11 13.534 28.32 1494.53 1021.241 27.45 27.41 13.457 28.37 1494.34 1021.298 27.75 27.71 13.311 28.47 1493.98 1021.409 28.05 28.01 13.123 28.61 1493.51 1021.550 28.35 28.30 13.031 28.62 1493.22 1021.580 28.65 28.60 13.053 28.59 1493.26 1021.553 28.95 28.90 13.092 28.57 1493.38 1021.531 29.25 29.20 13.153 28.52 1493.52 1021.480 29.55 29.50 13.120 28.58 1493.50 1021.540 29.85 29.80 13.000 28.65 1493.17 1021.616 30.15 30.10 12.982 28.64 1493.11 1021.613 30.45 30.40 12.958 28.66 1493.05 1021.630 30.75 30.70 12.941 28.67 1493.01 1021.645 31.05 31.00 12.928 28.67 1492.98 1021.652 31.35 31.30 12.919 28.68 1492.95 1021.658 31.65 31.60 12.896 28.69 1492.90 1021.675 31.95 31.90 12.888 28.70 1492.89 1021.684 32.25 32.20 12.889 28.70 1492.90 1021.686 32.55 32.50 12.888 28.69 1492.89 1021.682 32.85 32.80 12.880 28.71 1492.88 1021.694 33.15 33.09 12.875 28.71 1492.88 1021.700 33.45 33.39 12.867 28.72 1492.86 1021.707 33.75 33.69 12.870 28.70 1492.86 1021.696 34.05 33.99 12.848 28.70 1492.78 1021.697 34.35 34.29 12.805 28.71 1492.66 1021.721 34.65 34.59 12.774 28.72 1492.57 1021.733 34.95 34.89 12.647 28.81 1492.24 1021.826 35.25 35.19 12.530 28.90 1491.95 1021.917 35.55 35.49 12.491 28.92 1491.85 1021.943 35.85 35.79 12.426 28.98 1491.70 1022.002 36.15 36.09 12.334 29.05 1491.48 1022.078 36.45 36.39 12.274 29.09 1491.32 1022.119 36.75 36.69 12.246 29.09 1491.23 1022.124 37.05 36.98 12.220 29.09 1491.15 1022.133 37.35 37.28 12.190 29.12 1491.08 1022.161 37.65 37.58 12.176 29.09 1491.00 1022.140 37.95 37.88 12.141 29.11 1490.91 1022.169 38.25 38.18 12.104 29.16 1490.85 1022.214 38.55 38.48 12.023 29.22 1490.63 1022.272 38.85 38.78 11.962 29.27 1490.49 1022.322 39.15 39.08 11.950 29.21 1490.39 1022.285 39.45 39.38 11.900 29.23 1490.23 1022.306 39.75 39.68 11.821 29.29 1490.04 1022.368 40.05 39.98 11.764 29.31 1489.87 1022.400 40.35 40.28 11.714 29.36 1489.76 1022.447 40.65 40.58 11.675 29.39 1489.67 1022.479 40.95 40.87 11.654 29.41 1489.62 1022.496 41.25 41.17 11.650 29.41 1489.61 1022.500 41.55 41.47 11.643 29.41 1489.59 1022.506 41.85 41.77 11.631 29.42 1489.57 1022.513 42.15 42.07 11.617 29.44 1489.55 1022.534 42.45 42.37 11.599 29.44 1489.49 1022.540 42.75 42.67 11.585 29.45 1489.46 1022.552 43.05 42.97 11.572 29.46 1489.43 1022.564 43.35 43.27 11.571 29.46 1489.43 1022.562 43.65 43.57 11.568 29.46 1489.42 1022.563 43.95 43.87 11.566 29.46 1489.43 1022.571 44.25 44.16 11.579 29.45 1489.46 1022.558 44.55 44.46 11.596 29.44 1489.51 1022.549 44.85 44.76 11.597 29.44 1489.52 1022.550 45.15 45.06 11.589 29.45 1489.50 1022.557 45.45 45.36 11.585 29.46 1489.51 1022.567 45.75 45.66 11.583 29.45 1489.50 1022.566 46.05 45.96 11.575 29.45 1489.47 1022.568 46.35 46.26 11.555 29.45 1489.41 1022.570 46.65 46.56 11.501 29.49 1489.27 1022.614 46.95 46.86 11.470 29.52 1489.20 1022.642 47.25 47.16 11.453 29.52 1489.15 1022.650 47.55 47.45 11.428 29.54 1489.10 1022.672 47.85 47.75 11.410 29.56 1489.06 1022.690 48.15 48.05 11.415 29.55 1489.07 1022.683 48.45 48.35 11.425 29.51 1489.06 1022.650 48.75 48.65 11.364 29.56 1488.92 1022.705 49.05 48.95 11.270 29.64 1488.68 1022.782 49.29 49.19 11.258 29.64 1488.64 1022.784