*2017/12/13 11:31:18.08 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 16:50:29.000 END TIME : UTC 2016/07/18 16:50:53.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 121 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.228 2 Depth metres 0.15 36.159 3 Temperature 'deg C (ITS90)' 11.106 16.262 4 Salinity PSS-78 27.033 29.501 5 Speed:Sound m/s 1487.695 1501.438 6 Density kg/m^3 1019.575 1022.644 $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 : 612 LATITUDE : 48 46.28637 N ! (deg min) LONGITUDE : 123 34.29906 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 02:02:27 121 121 HDREDIT2 3.1.1 2017/12/13 11:31:18 ? ? $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 02:02:27 -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_165029 % Cast time (UTC),2016-07-18 16:50:29 % Cast time (local),2016-07-18 16:50:29 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7714395 % Start longitude,-123.571651 % Start altitude,-19.190000534057617 % Start GPS horizontal error(Meter),1.8600000143051148 % Start GPS vertical error(Meter),3.1400001049041748 % Start GPS number of satellites,7 % End latitude,48.7713705 % End longitude,-123.5724241 % End altitude,-13.789999961853027 % End GPS horizontal error(Meter),3.9600000381469727 % End GPS vertical error(Meter),7.1500000953674316 % End GPS number of satellites,7 % Cast duration (Seconds),93 % 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 16.262 27.03 1501.44 1019.575 0.45 0.45 15.939 27.05 1500.45 1019.659 0.75 0.75 15.403 27.31 1499.05 1019.976 1.05 1.05 15.257 27.35 1498.62 1020.032 1.35 1.35 15.214 27.37 1498.52 1020.064 1.65 1.65 15.266 27.33 1498.64 1020.022 1.95 1.95 15.379 27.23 1498.90 1019.926 2.25 2.25 15.449 27.16 1499.04 1019.852 2.55 2.55 15.360 27.20 1498.82 1019.910 2.85 2.85 15.272 27.26 1498.61 1019.973 3.15 3.15 15.107 27.38 1498.22 1020.099 3.45 3.45 15.006 27.46 1497.98 1020.181 3.75 3.75 14.909 27.51 1497.73 1020.240 4.05 4.05 14.759 27.59 1497.35 1020.339 4.35 4.35 14.645 27.65 1497.05 1020.408 4.65 4.65 14.614 27.66 1496.97 1020.422 4.95 4.95 14.615 27.67 1496.98 1020.429 5.25 5.25 14.587 27.67 1496.90 1020.438 5.55 5.55 14.549 27.68 1496.79 1020.454 5.85 5.85 14.488 27.70 1496.62 1020.487 6.15 6.15 14.466 27.72 1496.58 1020.507 6.45 6.45 14.453 27.73 1496.56 1020.519 6.75 6.75 14.445 27.73 1496.54 1020.523 7.05 7.04 14.439 27.73 1496.52 1020.523 7.35 7.34 14.458 27.73 1496.59 1020.520 7.65 7.64 14.433 27.75 1496.53 1020.541 7.95 7.94 14.423 27.75 1496.49 1020.541 8.25 8.24 14.419 27.74 1496.49 1020.541 8.55 8.54 14.416 27.74 1496.48 1020.544 8.85 8.84 14.388 27.76 1496.41 1020.563 9.15 9.14 14.355 27.78 1496.33 1020.584 9.45 9.44 14.321 27.80 1496.25 1020.609 9.75 9.74 14.289 27.82 1496.17 1020.630 10.05 10.04 14.267 27.83 1496.12 1020.647 10.35 10.34 14.239 27.84 1496.05 1020.666 10.65 10.64 14.206 27.86 1495.96 1020.685 10.95 10.94 14.188 27.87 1495.92 1020.696 11.25 11.24 14.176 27.88 1495.89 1020.708 11.55 11.54 14.164 27.89 1495.87 1020.716 11.85 11.84 14.151 27.89 1495.84 1020.726 12.15 12.14 14.129 27.91 1495.79 1020.742 12.45 12.44 14.114 27.91 1495.75 1020.754 12.75 12.74 14.107 27.92 1495.74 1020.758 13.05 13.04 14.104 27.92 1495.73 1020.761 13.35 13.34 14.102 27.92 1495.73 1020.761 13.65 13.64 14.095 27.92 1495.72 1020.769 13.95 13.94 14.089 27.93 1495.71 1020.775 14.25 14.24 14.080 27.93 1495.69 1020.782 14.55 14.54 14.072 27.94 1495.67 1020.788 14.85 14.84 14.058 27.94 1495.64 1020.796 15.15 15.13 14.047 27.95 1495.62 1020.806 15.45 15.43 14.018 27.96 1495.54 1020.824 15.75 15.73 13.953 28.01 1495.38 1020.872 16.05 16.03 13.890 28.03 1495.20 1020.901 16.35 16.33 13.858 28.05 1495.12 1020.924 16.65 16.63 13.827 28.07 1495.05 1020.947 16.95 16.93 13.768 28.09 1494.89 1020.980 17.25 17.23 13.722 28.10 1494.74 1020.993 17.55 17.53 13.686 28.12 1494.65 1021.016 17.85 17.83 13.669 28.13 1494.61 1021.028 18.15 18.13 13.655 28.13 1494.58 1021.037 18.45 18.43 13.635 28.14 1494.53 1021.050 18.75 18.73 13.598 28.17 1494.44 1021.080 19.05 19.03 13.556 28.19 1494.33 1021.106 19.35 19.33 13.515 28.21 1494.22 1021.129 19.65 19.63 13.480 28.22 1494.12 1021.145 19.95 19.93 13.440 28.23 1494.00 1021.163 20.25 20.23 13.329 28.23 1493.63 1021.182 20.55 20.53 13.216 28.21 1493.24 1021.195 20.85 20.83 12.991 28.34 1492.63 1021.340 21.15 21.12 12.845 28.43 1492.24 1021.433 21.45 21.43 12.683 28.53 1491.81 1021.541 21.75 21.72 12.333 28.77 1490.90 1021.794 22.05 22.02 12.029 28.92 1490.03 1021.969 22.35 22.32 11.803 29.09 1489.46 1022.142 22.65 22.62 11.585 29.20 1488.82 1022.264 22.95 22.92 11.522 29.23 1488.65 1022.301 23.25 23.22 11.471 29.27 1488.52 1022.343 23.55 23.52 11.427 29.31 1488.41 1022.380 23.85 23.82 11.392 29.33 1488.33 1022.409 24.15 24.12 11.370 29.35 1488.28 1022.428 24.45 24.42 11.352 29.37 1488.23 1022.444 24.75 24.72 11.343 29.37 1488.22 1022.453 25.05 25.02 11.317 29.39 1488.15 1022.471 25.35 25.31 11.307 29.38 1488.11 1022.467 25.65 25.61 11.311 29.37 1488.12 1022.462 25.95 25.91 11.307 29.37 1488.11 1022.464 26.25 26.21 11.304 29.38 1488.11 1022.472 26.55 26.51 11.293 29.39 1488.09 1022.483 26.85 26.81 11.288 29.39 1488.08 1022.487 27.15 27.11 11.284 29.39 1488.07 1022.490 27.45 27.41 11.279 29.40 1488.07 1022.496 27.75 27.71 11.272 29.41 1488.06 1022.504 28.05 28.01 11.268 29.40 1488.04 1022.504 28.35 28.30 11.263 29.40 1488.03 1022.506 28.65 28.60 11.255 29.41 1488.01 1022.509 28.95 28.90 11.247 29.41 1487.99 1022.517 29.25 29.20 11.229 29.43 1487.95 1022.532 29.55 29.50 11.223 29.43 1487.94 1022.538 29.85 29.80 11.216 29.43 1487.92 1022.543 30.15 30.10 11.206 29.44 1487.90 1022.550 30.45 30.40 11.190 29.44 1487.85 1022.559 30.75 30.70 11.179 29.45 1487.83 1022.565 31.05 31.00 11.171 29.45 1487.81 1022.572 31.35 31.30 11.167 29.45 1487.80 1022.574 31.65 31.59 11.163 29.46 1487.80 1022.585 31.95 31.89 11.140 29.48 1487.74 1022.600 32.25 32.19 11.129 29.48 1487.71 1022.607 32.55 32.49 11.132 29.48 1487.72 1022.602 32.85 32.79 11.134 29.48 1487.73 1022.604 33.15 33.09 11.133 29.48 1487.74 1022.607 33.45 33.39 11.129 29.48 1487.74 1022.615 33.75 33.69 11.125 29.48 1487.72 1022.615 34.05 33.99 11.121 29.48 1487.71 1022.616 34.35 34.29 11.115 29.49 1487.71 1022.623 34.65 34.59 11.112 29.49 1487.70 1022.625 34.95 34.88 11.110 29.49 1487.70 1022.628 35.25 35.18 11.106 29.50 1487.70 1022.637 35.55 35.48 11.106 29.49 1487.69 1022.632 35.85 35.78 11.106 29.49 1487.70 1022.634 36.23 36.16 11.107 29.50 1487.72 1022.644