*2017/12/13 11:31:18.09 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 18:52:09.000 END TIME : UTC 2016/07/18 18:52:38.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 148 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 44.391 2 Depth metres 0.15 44.272 3 Temperature 'deg C (ITS90)' 10.162 14.594 4 Salinity PSS-78 27.748 30.577 5 Speed:Sound m/s 1485.77 1496.973 6 Density kg/m^3 1020.483 1023.676 $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 : 613 LATITUDE : 48 46.27952 N ! (deg min) LONGITUDE : 123 34.29736 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 02:03:31 148 148 HDREDIT2 3.1.1 2017/12/13 11:31:18 ? ? $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 02:03:31 -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_185209 % Cast time (UTC),2016-07-18 18:52:09 % Cast time (local),2016-07-18 18:52:09 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7713253 % Start longitude,-123.5716227 % Start altitude,-19.549999237060547 % Start GPS horizontal error(Meter),3.75 % Start GPS vertical error(Meter),3.619999885559082 % Start GPS number of satellites,6 % End latitude,48.7719175 % End longitude,-123.57035 % End altitude,-23.1200008392334 % End GPS horizontal error(Meter),4.71999979019165 % End GPS vertical error(Meter),4.2899999618530273 % End GPS number of satellites,6 % Cast duration (Seconds),148.4 % 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 14.526 27.81 1496.78 1020.536 0.45 0.45 14.494 27.82 1496.69 1020.548 0.75 0.75 14.495 27.81 1496.69 1020.545 1.05 1.05 14.503 27.82 1496.72 1020.549 1.35 1.35 14.541 27.80 1496.84 1020.531 1.65 1.65 14.570 27.79 1496.93 1020.517 1.95 1.95 14.586 27.78 1496.97 1020.510 2.25 2.25 14.594 27.75 1496.96 1020.483 2.55 2.55 14.588 27.75 1496.95 1020.488 2.85 2.85 14.544 27.76 1496.83 1020.507 3.15 3.15 14.436 27.77 1496.49 1020.538 3.45 3.45 14.271 27.83 1496.02 1020.617 3.75 3.75 14.238 27.80 1495.88 1020.602 4.05 4.05 14.172 27.85 1495.73 1020.656 4.35 4.34 14.080 27.91 1495.50 1020.719 4.65 4.64 14.005 27.94 1495.30 1020.761 4.95 4.94 13.941 27.99 1495.14 1020.811 5.25 5.24 13.874 28.02 1494.96 1020.849 5.55 5.54 13.818 28.04 1494.81 1020.879 5.85 5.84 13.767 28.07 1494.67 1020.911 6.15 6.14 13.696 28.11 1494.48 1020.955 6.45 6.44 13.644 28.14 1494.35 1020.988 6.75 6.74 13.610 28.15 1494.26 1021.009 7.05 7.04 13.586 28.17 1494.20 1021.027 7.35 7.34 13.568 28.17 1494.15 1021.036 7.65 7.64 13.537 28.20 1494.09 1021.062 7.95 7.94 13.505 28.22 1494.01 1021.088 8.25 8.24 13.490 28.23 1493.97 1021.099 8.55 8.54 13.481 28.24 1493.96 1021.109 8.85 8.84 13.465 28.25 1493.92 1021.122 9.15 9.14 13.451 28.26 1493.89 1021.131 9.45 9.44 13.429 28.27 1493.84 1021.145 9.75 9.74 13.411 28.26 1493.76 1021.141 10.05 10.04 13.389 28.26 1493.70 1021.152 10.35 10.34 13.359 28.28 1493.63 1021.171 10.65 10.63 13.295 28.31 1493.45 1021.207 10.95 10.94 13.202 28.36 1493.21 1021.269 11.25 11.23 13.049 28.47 1492.82 1021.379 11.55 11.53 12.885 28.57 1492.39 1021.493 11.85 11.83 12.779 28.60 1492.06 1021.533 12.15 12.13 12.727 28.62 1491.92 1021.564 12.45 12.43 12.697 28.64 1491.85 1021.587 12.75 12.73 12.643 28.68 1491.71 1021.630 13.05 13.03 12.547 28.74 1491.46 1021.694 13.35 13.33 12.476 28.77 1491.26 1021.734 13.65 13.63 12.444 28.80 1491.18 1021.759 13.95 13.93 12.431 28.81 1491.16 1021.774 14.25 14.23 12.423 28.81 1491.13 1021.775 14.55 14.53 12.424 28.80 1491.14 1021.772 14.85 14.83 12.441 28.80 1491.20 1021.769 15.15 15.13 12.426 28.81 1491.15 1021.776 15.45 15.43 12.419 28.81 1491.14 1021.782 15.75 15.72 12.403 28.83 1491.11 1021.799 16.05 16.02 12.379 28.83 1491.04 1021.810 16.35 16.32 12.367 28.84 1491.01 1021.814 16.65 16.62 12.347 28.85 1490.96 1021.831 16.95 16.92 12.340 28.85 1490.94 1021.831 17.25 17.22 12.341 28.85 1490.95 1021.833 17.55 17.52 12.337 28.85 1490.94 1021.836 17.85 17.82 12.350 28.84 1490.98 1021.830 18.15 18.12 12.347 28.85 1490.98 1021.835 18.45 18.42 12.353 28.84 1491.00 1021.831 18.75 18.72 12.351 28.84 1491.00 1021.835 19.05 19.02 12.349 28.85 1491.01 1021.841 19.35 19.32 12.329 28.86 1490.95 1021.853 19.65 19.61 12.324 28.85 1490.93 1021.851 19.95 19.91 12.334 28.85 1490.97 1021.847 20.25 20.21 12.331 28.86 1490.97 1021.856 20.55 20.51 12.332 28.86 1490.98 1021.857 20.85 20.81 12.332 28.86 1490.99 1021.860 21.15 21.11 12.334 28.86 1491.00 1021.859 21.45 21.41 12.331 28.86 1490.99 1021.860 21.75 21.71 12.324 28.86 1490.97 1021.862 22.05 22.01 12.309 28.87 1490.95 1021.880 22.35 22.31 12.299 28.87 1490.91 1021.882 22.65 22.61 12.213 28.90 1490.65 1021.918 22.95 22.91 12.106 28.90 1490.29 1021.940 23.25 23.21 12.002 28.96 1490.00 1022.007 23.55 23.51 11.909 29.02 1489.76 1022.076 23.85 23.80 11.739 29.14 1489.32 1022.201 24.15 24.10 11.645 29.19 1489.05 1022.255 24.45 24.40 11.573 29.24 1488.87 1022.310 24.75 24.70 11.520 29.28 1488.73 1022.350 25.05 25.00 11.449 29.33 1488.54 1022.401 25.35 25.30 11.356 29.40 1488.30 1022.470 25.65 25.60 11.290 29.46 1488.15 1022.530 25.95 25.90 11.248 29.49 1488.04 1022.561 26.25 26.20 11.192 29.53 1487.90 1022.610 26.55 26.50 11.093 29.63 1487.67 1022.703 26.85 26.80 11.090 29.62 1487.66 1022.698 27.15 27.09 11.010 29.69 1487.46 1022.767 27.45 27.39 10.969 29.76 1487.40 1022.829 27.75 27.69 10.959 29.78 1487.39 1022.844 28.05 27.99 10.948 29.78 1487.36 1022.853 28.35 28.29 10.952 29.79 1487.39 1022.859 28.65 28.59 10.956 29.78 1487.39 1022.849 28.95 28.89 10.946 29.77 1487.36 1022.850 29.25 29.19 10.939 29.79 1487.36 1022.865 29.55 29.49 10.920 29.82 1487.33 1022.890 29.85 29.79 10.866 29.85 1487.18 1022.925 30.15 30.09 10.846 29.88 1487.15 1022.952 30.45 30.38 10.814 29.92 1487.09 1022.992 30.75 30.68 10.793 29.94 1487.05 1023.016 31.05 30.98 10.778 29.95 1487.01 1023.027 31.35 31.28 10.766 29.96 1486.98 1023.038 31.65 31.58 10.740 29.99 1486.93 1023.068 31.95 31.88 10.718 30.01 1486.88 1023.087 32.25 32.18 10.703 30.03 1486.86 1023.108 32.55 32.48 10.688 30.05 1486.83 1023.124 32.85 32.77 10.674 30.07 1486.81 1023.142 33.15 33.07 10.665 30.07 1486.78 1023.149 33.45 33.37 10.659 30.07 1486.77 1023.153 33.75 33.67 10.654 30.08 1486.76 1023.159 34.05 33.97 10.651 30.08 1486.76 1023.159 34.35 34.27 10.648 30.09 1486.77 1023.170 34.65 34.57 10.636 30.10 1486.74 1023.181 34.95 34.87 10.625 30.11 1486.72 1023.191 35.25 35.17 10.624 30.11 1486.72 1023.196 35.55 35.47 10.621 30.11 1486.71 1023.194 35.85 35.76 10.615 30.14 1486.73 1023.218 36.15 36.06 10.610 30.14 1486.73 1023.228 36.45 36.36 10.631 30.14 1486.80 1023.225 36.75 36.66 10.645 30.12 1486.83 1023.203 37.05 36.96 10.627 30.13 1486.78 1023.220 37.35 37.26 10.604 30.15 1486.73 1023.239 37.65 37.56 10.588 30.16 1486.68 1023.247 37.95 37.86 10.566 30.18 1486.64 1023.273 38.25 38.16 10.543 30.20 1486.59 1023.294 38.55 38.45 10.527 30.22 1486.56 1023.313 38.85 38.75 10.516 30.23 1486.54 1023.324 39.15 39.05 10.491 30.25 1486.47 1023.341 39.45 39.35 10.477 30.26 1486.44 1023.352 39.75 39.65 10.440 30.29 1486.35 1023.386 40.05 39.95 10.435 30.29 1486.34 1023.388 40.35 40.25 10.434 30.30 1486.35 1023.394 40.65 40.55 10.438 30.30 1486.38 1023.402 40.95 40.84 10.451 30.31 1486.43 1023.405 41.25 41.14 10.446 30.30 1486.41 1023.402 41.55 41.44 10.400 30.35 1486.31 1023.449 41.85 41.74 10.352 30.40 1486.20 1023.498 42.15 42.04 10.317 30.43 1486.12 1023.530 42.45 42.34 10.281 30.46 1486.03 1023.559 42.75 42.64 10.243 30.49 1485.93 1023.589 43.05 42.94 10.225 30.50 1485.88 1023.602 43.35 43.24 10.208 30.52 1485.86 1023.624 43.65 43.53 10.189 30.54 1485.81 1023.639 43.95 43.83 10.177 30.55 1485.78 1023.650 44.39 44.27 10.162 30.58 1485.77 1023.676