*2017/12/13 11:31:18.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 22:14:19.000 END TIME : UTC 2016/07/18 22:14:47.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 143 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.657 2 Depth metres 0.15 42.536 3 Temperature 'deg C (ITS90)' 10.001 14.783 4 Salinity PSS-78 27.674 30.731 5 Speed:Sound m/s 1485.294 1497.459 6 Density kg/m^3 1020.378 1023.811 $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 : 610 LATITUDE : 48 46.20106 N ! (deg min) LONGITUDE : 123 33.94312 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 02:00:28 143 143 HDREDIT2 3.1.1 2017/12/13 11:31:18 ? ? $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 02:00:28 -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_221419 % Cast time (UTC),2016-07-18 22:14:19 % Cast time (local),2016-07-18 22:14:19 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7700177 % Start longitude,-123.5657187 % Start altitude,-14.109999656677246 % Start GPS horizontal error(Meter),1.9600000381469727 % Start GPS vertical error(Meter),2.5999999046325684 % Start GPS number of satellites,7 % End latitude,48.770995 % End longitude,-123.5654579 % End altitude,-13.260000228881836 % End GPS horizontal error(Meter),8.2899999618530273 % End GPS vertical error(Meter),8.1000003814697266 % End GPS number of satellites,6 % Cast duration (Seconds),115.4 % 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 14.783 27.67 1497.46 1020.378 0.45 0.45 14.729 27.71 1497.33 1020.416 0.75 0.75 14.656 27.80 1497.20 1020.504 1.05 1.05 14.482 27.97 1496.84 1020.671 1.35 1.35 14.435 27.96 1496.68 1020.677 1.65 1.65 14.425 27.94 1496.62 1020.661 1.95 1.95 14.431 27.91 1496.62 1020.642 2.25 2.25 14.403 27.93 1496.55 1020.658 2.55 2.55 14.358 27.96 1496.44 1020.694 2.85 2.85 14.329 27.97 1496.36 1020.708 3.15 3.15 14.309 27.98 1496.32 1020.727 3.45 3.45 14.286 28.00 1496.27 1020.743 3.75 3.75 14.252 28.02 1496.18 1020.764 4.05 4.04 14.164 28.06 1495.95 1020.818 4.35 4.34 14.049 28.07 1495.59 1020.851 4.65 4.64 13.941 28.06 1495.22 1020.864 4.95 4.94 13.827 28.01 1494.79 1020.850 5.25 5.24 13.695 28.08 1494.44 1020.934 5.55 5.54 13.618 28.12 1494.23 1020.980 5.85 5.84 13.535 28.18 1494.03 1021.043 6.15 6.14 13.415 28.25 1493.71 1021.120 6.45 6.44 13.281 28.33 1493.36 1021.208 6.75 6.74 13.123 28.41 1492.93 1021.302 7.05 7.04 12.955 28.50 1492.47 1021.407 7.35 7.34 12.866 28.55 1492.23 1021.465 7.65 7.64 12.803 28.58 1492.06 1021.500 7.95 7.94 12.721 28.63 1491.84 1021.550 8.25 8.24 12.630 28.69 1491.60 1021.615 8.55 8.54 12.531 28.75 1491.35 1021.686 8.85 8.84 12.482 28.78 1491.22 1021.720 9.15 9.14 12.433 28.82 1491.10 1021.760 9.45 9.44 12.371 28.86 1490.94 1021.804 9.75 9.73 12.322 28.90 1490.82 1021.842 10.05 10.03 12.287 28.92 1490.73 1021.867 10.35 10.33 12.269 28.93 1490.69 1021.880 10.65 10.63 12.263 28.93 1490.67 1021.885 10.95 10.93 12.259 28.93 1490.66 1021.886 11.25 11.23 12.252 28.94 1490.65 1021.896 11.55 11.53 12.246 28.95 1490.64 1021.900 11.85 11.83 12.238 28.95 1490.63 1021.906 12.15 12.13 12.223 28.95 1490.58 1021.913 12.45 12.43 12.205 28.97 1490.54 1021.929 12.75 12.73 12.183 28.99 1490.49 1021.950 13.05 13.03 12.147 29.01 1490.40 1021.975 13.35 13.33 12.123 29.02 1490.33 1021.986 13.65 13.62 12.096 29.04 1490.27 1022.009 13.95 13.92 12.065 29.07 1490.20 1022.038 14.25 14.22 12.019 29.10 1490.08 1022.071 14.55 14.52 11.959 29.14 1489.93 1022.116 14.85 14.82 11.912 29.17 1489.81 1022.152 15.15 15.12 11.887 29.19 1489.74 1022.169 15.45 15.42 11.864 29.20 1489.69 1022.187 15.75 15.72 11.848 29.21 1489.65 1022.199 16.05 16.02 11.835 29.22 1489.62 1022.210 16.35 16.32 11.815 29.24 1489.58 1022.229 16.65 16.62 11.798 29.25 1489.54 1022.242 16.95 16.92 11.780 29.27 1489.50 1022.259 17.25 17.21 11.763 29.27 1489.44 1022.263 17.55 17.51 11.735 29.30 1489.38 1022.292 17.85 17.81 11.709 29.31 1489.32 1022.309 18.15 18.11 11.690 29.33 1489.28 1022.326 18.45 18.41 11.676 29.34 1489.25 1022.341 18.75 18.71 11.670 29.35 1489.24 1022.347 19.05 19.01 11.669 29.35 1489.24 1022.348 19.35 19.31 11.669 29.35 1489.24 1022.352 19.65 19.61 11.668 29.35 1489.25 1022.355 19.95 19.91 11.666 29.35 1489.25 1022.359 20.25 20.21 11.666 29.35 1489.25 1022.358 20.55 20.51 11.667 29.35 1489.26 1022.357 20.85 20.80 11.665 29.35 1489.26 1022.361 21.15 21.10 11.667 29.35 1489.27 1022.359 21.45 21.40 11.664 29.35 1489.26 1022.360 21.75 21.70 11.658 29.35 1489.25 1022.367 22.05 22.00 11.645 29.37 1489.23 1022.385 22.35 22.30 11.626 29.38 1489.18 1022.395 22.65 22.60 11.613 29.39 1489.15 1022.405 22.95 22.90 11.600 29.40 1489.12 1022.418 23.25 23.20 11.593 29.40 1489.11 1022.425 23.55 23.50 11.587 29.40 1489.09 1022.427 23.85 23.80 11.584 29.41 1489.09 1022.433 24.15 24.09 11.585 29.41 1489.10 1022.435 24.45 24.39 11.586 29.41 1489.11 1022.433 24.75 24.69 11.585 29.41 1489.11 1022.440 25.05 24.99 11.576 29.41 1489.09 1022.444 25.35 25.29 11.565 29.42 1489.06 1022.450 25.65 25.59 11.561 29.43 1489.06 1022.458 25.95 25.89 11.559 29.43 1489.07 1022.464 26.25 26.19 11.559 29.43 1489.07 1022.468 26.55 26.49 11.558 29.43 1489.07 1022.467 26.85 26.79 11.556 29.43 1489.07 1022.470 27.15 27.09 11.551 29.44 1489.07 1022.477 27.45 27.39 11.548 29.44 1489.06 1022.480 27.75 27.68 11.546 29.44 1489.06 1022.482 28.05 27.98 11.542 29.44 1489.05 1022.485 28.35 28.28 11.513 29.46 1488.98 1022.504 28.65 28.58 11.473 29.49 1488.88 1022.539 28.95 28.88 11.448 29.51 1488.82 1022.558 29.25 29.18 11.429 29.52 1488.78 1022.573 29.55 29.48 11.407 29.54 1488.73 1022.595 29.85 29.78 11.400 29.55 1488.71 1022.601 30.15 30.08 11.396 29.55 1488.70 1022.601 30.45 30.38 11.383 29.56 1488.67 1022.614 30.75 30.68 11.359 29.58 1488.62 1022.634 31.05 30.98 11.334 29.59 1488.55 1022.649 31.35 31.27 11.288 29.62 1488.43 1022.684 31.65 31.57 11.241 29.66 1488.31 1022.721 31.95 31.87 11.204 29.68 1488.22 1022.750 32.25 32.17 11.165 29.71 1488.11 1022.778 32.55 32.47 11.100 29.75 1487.93 1022.821 32.85 32.77 11.003 29.82 1487.68 1022.894 33.15 33.07 10.915 29.89 1487.46 1022.965 33.45 33.37 10.792 29.98 1487.14 1023.061 33.75 33.67 10.645 30.10 1486.76 1023.179 34.05 33.97 10.552 30.18 1486.53 1023.258 34.35 34.26 10.493 30.25 1486.40 1023.320 34.65 34.56 10.443 30.29 1486.28 1023.363 34.95 34.86 10.395 30.36 1486.19 1023.423 35.25 35.16 10.294 30.45 1485.95 1023.517 35.55 35.46 10.189 30.54 1485.68 1023.605 35.85 35.76 10.120 30.60 1485.51 1023.665 36.15 36.06 10.081 30.64 1485.41 1023.699 36.45 36.35 10.059 30.64 1485.35 1023.710 36.75 36.65 10.046 30.67 1485.34 1023.734 37.05 36.95 10.037 30.68 1485.32 1023.741 37.35 37.25 10.030 30.68 1485.30 1023.748 37.65 37.55 10.027 30.69 1485.30 1023.754 37.95 37.85 10.024 30.68 1485.29 1023.754 38.25 38.15 10.025 30.69 1485.31 1023.762 38.55 38.45 10.028 30.70 1485.34 1023.768 38.85 38.74 10.028 30.70 1485.34 1023.772 39.15 39.04 10.024 30.71 1485.34 1023.776 39.45 39.34 10.018 30.71 1485.32 1023.779 39.75 39.64 10.013 30.71 1485.32 1023.785 40.05 39.94 10.010 30.71 1485.31 1023.786 40.35 40.24 10.008 30.71 1485.31 1023.788 40.65 40.54 10.005 30.72 1485.31 1023.795 40.95 40.84 10.003 30.72 1485.31 1023.798 41.25 41.13 10.001 30.72 1485.31 1023.800 41.55 41.43 10.001 30.73 1485.32 1023.806 41.85 41.73 10.003 30.73 1485.33 1023.807 42.15 42.03 10.006 30.73 1485.35 1023.808 42.45 42.33 10.011 30.72 1485.36 1023.803 42.66 42.54 10.028 30.73 1485.44 1023.811