*2017/12/13 11:31:18.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 16:45:52.000 END TIME : UTC 2016/07/18 16:46:18.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.27 2 Depth metres 0.15 40.192 3 Temperature 'deg C (ITS90)' 11.863 16.663 4 Salinity PSS-78 26.747 29.092 5 Speed:Sound m/s 1489.952 1502.361 6 Density kg/m^3 1019.268 1022.21 $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 : 605 LATITUDE : 48 46.19276 N ! (deg min) LONGITUDE : 123 33.94927 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 01:55:25 135 135 HDREDIT2 3.1.1 2017/12/13 11:31:18 ? ? $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:55:25 -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_20160718_164552 % Cast time (UTC),2016-07-18 16:45:52 % Cast time (local),2016-07-18 16:45:52 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7698794 % Start longitude,-123.5658212 % Start altitude,-14.779999732971191 % Start GPS horizontal error(Meter),1.8799999952316284 % Start GPS vertical error(Meter),3.0299999713897705 % Start GPS number of satellites,7 % End latitude,48.76977 % End longitude,-123.5668112 % End altitude,-15.979999542236328 % End GPS horizontal error(Meter),8.5600004196167 % End GPS vertical error(Meter),15.409999847412109 % End GPS number of satellites,7 % Cast duration (Seconds),114.6 % 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 16.663 26.75 1502.36 1019.268 0.45 0.45 16.593 26.75 1502.16 1019.291 0.75 0.75 16.547 26.78 1502.05 1019.320 1.05 1.05 16.528 26.79 1502.01 1019.334 1.35 1.35 16.521 26.78 1501.98 1019.332 1.65 1.65 16.515 26.79 1501.97 1019.338 1.95 1.95 16.527 26.77 1501.99 1019.323 2.25 2.25 16.518 26.78 1501.98 1019.333 2.55 2.55 16.482 26.78 1501.88 1019.345 2.85 2.85 16.424 26.80 1501.72 1019.374 3.15 3.15 16.268 26.85 1501.29 1019.443 3.45 3.45 16.104 26.90 1500.85 1019.524 3.75 3.75 15.887 26.99 1500.27 1019.641 4.05 4.05 15.690 27.09 1499.76 1019.758 4.35 4.35 15.532 27.18 1499.37 1019.863 4.65 4.65 15.378 27.28 1499.00 1019.975 4.95 4.95 15.286 27.32 1498.76 1020.027 5.25 5.25 15.227 27.36 1498.62 1020.071 5.55 5.55 15.118 27.41 1498.33 1020.135 5.85 5.85 15.048 27.45 1498.15 1020.176 6.15 6.15 14.979 27.50 1498.00 1020.234 6.45 6.45 14.856 27.56 1497.66 1020.303 6.75 6.75 14.783 27.57 1497.45 1020.330 7.05 7.05 14.750 27.59 1497.37 1020.354 7.35 7.35 14.645 27.61 1497.06 1020.391 7.65 7.65 14.566 27.63 1496.82 1020.422 7.95 7.95 14.424 27.71 1496.46 1020.515 8.25 8.25 14.303 27.78 1496.14 1020.590 8.55 8.55 14.134 27.89 1495.72 1020.712 8.85 8.85 13.940 28.00 1495.21 1020.834 9.15 9.15 13.836 28.05 1494.93 1020.897 9.45 9.45 13.707 28.13 1494.60 1020.983 9.75 9.74 13.551 28.24 1494.21 1021.100 10.05 10.04 13.361 28.32 1493.67 1021.199 10.35 10.34 13.317 28.34 1493.56 1021.231 10.65 10.64 13.242 28.37 1493.35 1021.268 10.95 10.94 13.183 28.39 1493.18 1021.298 11.25 11.24 13.122 28.41 1493.00 1021.326 11.55 11.54 13.080 28.43 1492.89 1021.348 11.85 11.84 13.015 28.47 1492.72 1021.391 12.15 12.14 12.985 28.48 1492.63 1021.410 12.45 12.44 12.951 28.50 1492.55 1021.432 12.75 12.74 12.931 28.51 1492.49 1021.443 13.05 13.04 12.881 28.55 1492.37 1021.481 13.35 13.34 12.794 28.61 1492.15 1021.547 13.65 13.64 12.747 28.62 1492.01 1021.568 13.95 13.94 12.719 28.64 1491.95 1021.589 14.25 14.24 12.714 28.64 1491.94 1021.594 14.55 14.54 12.711 28.65 1491.94 1021.600 14.85 14.84 12.684 28.67 1491.87 1021.620 15.15 15.13 12.625 28.70 1491.71 1021.654 15.45 15.43 12.599 28.70 1491.63 1021.664 15.75 15.73 12.609 28.70 1491.66 1021.660 16.05 16.03 12.630 28.69 1491.73 1021.652 16.35 16.33 12.657 28.68 1491.82 1021.640 16.65 16.63 12.590 28.73 1491.65 1021.695 16.95 16.93 12.505 28.78 1491.42 1021.746 17.25 17.23 12.487 28.77 1491.35 1021.743 17.55 17.53 12.470 28.78 1491.31 1021.756 17.85 17.83 12.444 28.79 1491.24 1021.772 18.15 18.13 12.436 28.79 1491.22 1021.776 18.45 18.43 12.426 28.80 1491.20 1021.785 18.75 18.73 12.416 28.80 1491.18 1021.793 19.05 19.02 12.386 28.82 1491.10 1021.815 19.35 19.32 12.366 28.84 1491.06 1021.829 19.65 19.62 12.375 28.83 1491.08 1021.821 19.95 19.92 12.377 28.83 1491.10 1021.826 20.25 20.22 12.346 28.85 1491.02 1021.846 20.55 20.52 12.333 28.86 1490.98 1021.856 20.85 20.82 12.318 28.87 1490.95 1021.870 21.15 21.12 12.313 28.86 1490.93 1021.868 21.45 21.42 12.315 28.86 1490.95 1021.870 21.75 21.72 12.316 28.86 1490.95 1021.869 22.05 22.02 12.315 28.86 1490.95 1021.871 22.35 22.32 12.312 28.87 1490.95 1021.877 22.65 22.62 12.298 28.87 1490.92 1021.885 22.95 22.92 12.292 28.88 1490.91 1021.892 23.25 23.21 12.285 28.88 1490.89 1021.895 23.55 23.52 12.284 28.88 1490.89 1021.894 23.85 23.81 12.285 28.87 1490.89 1021.890 24.15 24.11 12.283 28.88 1490.90 1021.899 24.45 24.41 12.270 28.89 1490.87 1021.910 24.75 24.71 12.264 28.89 1490.86 1021.917 25.05 25.01 12.263 28.89 1490.86 1021.917 25.35 25.31 12.264 28.90 1490.87 1021.922 25.65 25.61 12.256 28.90 1490.86 1021.929 25.95 25.91 12.252 28.90 1490.85 1021.930 26.25 26.21 12.257 28.90 1490.87 1021.928 26.55 26.51 12.255 28.90 1490.87 1021.934 26.85 26.81 12.255 28.90 1490.88 1021.935 27.15 27.11 12.260 28.90 1490.89 1021.931 27.45 27.41 12.272 28.88 1490.92 1021.920 27.75 27.70 12.275 28.89 1490.94 1021.923 28.05 28.00 12.269 28.89 1490.93 1021.928 28.35 28.30 12.266 28.89 1490.93 1021.933 28.65 28.60 12.262 28.89 1490.91 1021.932 28.95 28.90 12.265 28.89 1490.93 1021.932 29.25 29.20 12.257 28.90 1490.92 1021.944 29.55 29.50 12.242 28.90 1490.87 1021.949 29.85 29.80 12.205 28.93 1490.78 1021.976 30.15 30.10 12.170 28.93 1490.67 1021.989 30.45 30.40 12.158 28.94 1490.64 1021.994 30.75 30.70 12.152 28.94 1490.62 1021.997 31.05 31.00 12.146 28.94 1490.61 1021.999 31.35 31.30 12.133 28.94 1490.57 1022.009 31.65 31.59 12.104 28.96 1490.51 1022.032 31.95 31.89 12.098 28.98 1490.50 1022.042 32.25 32.19 12.088 28.98 1490.48 1022.051 32.55 32.49 12.085 28.98 1490.47 1022.050 32.85 32.79 12.081 28.98 1490.46 1022.051 33.15 33.09 12.074 28.98 1490.44 1022.056 33.45 33.39 12.068 28.98 1490.43 1022.059 33.75 33.69 12.060 28.99 1490.41 1022.068 34.05 33.99 12.053 28.99 1490.40 1022.074 34.35 34.29 12.050 29.00 1490.40 1022.081 34.65 34.59 12.046 29.00 1490.39 1022.084 34.95 34.89 12.043 29.00 1490.38 1022.083 35.25 35.19 12.036 29.01 1490.38 1022.096 35.55 35.48 12.032 29.01 1490.37 1022.096 35.85 35.78 12.031 29.01 1490.38 1022.100 36.15 36.08 12.031 29.00 1490.37 1022.096 36.45 36.38 12.028 29.01 1490.38 1022.103 36.75 36.68 12.021 28.99 1490.33 1022.092 37.05 36.98 11.998 29.01 1490.28 1022.109 37.35 37.28 11.965 29.03 1490.20 1022.136 37.65 37.58 11.954 29.03 1490.15 1022.135 37.95 37.88 11.942 29.02 1490.11 1022.134 38.25 38.18 11.917 29.04 1490.05 1022.152 38.55 38.48 11.903 29.05 1490.02 1022.167 38.85 38.78 11.890 29.07 1490.00 1022.181 39.15 39.08 11.874 29.08 1489.96 1022.193 39.45 39.37 11.868 29.08 1489.96 1022.202 39.75 39.67 11.863 29.09 1489.95 1022.210 40.05 39.97 11.873 29.08 1489.98 1022.202 40.27 40.19 11.883 29.09 1490.02 1022.204