*2017/12/13 11:31:18.00 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 19:03:01.000 END TIME : UTC 2016/07/18 19:03:30.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 146 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 6 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.577 2 Depth metres 0.15 43.462 3 Temperature 'deg C (ITS90)' 10.132 13.884 4 Salinity PSS-78 28.051 30.743 5 Speed:Sound m/s 1485.85 1494.979 6 Density kg/m^3 1020.855 1023.807 $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 : 609 LATITUDE : 48 46.19362 N ! (deg min) LONGITUDE : 123 33.92982 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 01:59:28 146 146 HDREDIT2 3.1.1 2017/12/13 11:31:18 ? ? $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:59:28 -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_190301 % Cast time (UTC),2016-07-18 19:03:01 % Cast time (local),2016-07-18 19:03:01 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7698937 % Start longitude,-123.565497 % Start altitude,-18.739999771118164 % Start GPS horizontal error(Meter),2.4300000667572021 % Start GPS vertical error(Meter),3.130000114440918 % Start GPS number of satellites,8 % End latitude,48.7703807 % End longitude,-123.5651372 % End altitude,-31.799999237060547 % End GPS horizontal error(Meter),10.470000267028809 % End GPS vertical error(Meter),5.3899998664855957 % End GPS number of satellites,5 % Cast duration (Seconds),119.4 % 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 13.867 28.10 1494.95 1020.888 0.45 0.45 13.821 28.12 1494.82 1020.917 0.75 0.75 13.804 28.11 1494.76 1020.914 1.05 1.05 13.822 28.10 1494.81 1020.899 1.35 1.35 13.875 28.05 1494.93 1020.855 1.65 1.65 13.884 28.06 1494.98 1020.861 1.95 1.95 13.841 28.08 1494.86 1020.885 2.25 2.25 13.802 28.11 1494.78 1020.921 2.55 2.55 13.784 28.14 1494.75 1020.944 2.85 2.85 13.780 28.14 1494.75 1020.947 3.15 3.15 13.758 28.16 1494.70 1020.967 3.45 3.44 13.743 28.15 1494.65 1020.967 3.75 3.74 13.736 28.15 1494.62 1020.967 4.05 4.04 13.724 28.16 1494.60 1020.978 4.35 4.34 13.723 28.14 1494.59 1020.970 4.65 4.64 13.717 28.14 1494.57 1020.968 4.95 4.94 13.717 28.13 1494.56 1020.960 5.25 5.24 13.701 28.14 1494.53 1020.977 5.55 5.54 13.661 28.18 1494.44 1021.016 5.85 5.84 13.607 28.20 1494.29 1021.043 6.15 6.14 13.581 28.20 1494.21 1021.049 6.45 6.44 13.567 28.19 1494.15 1021.045 6.75 6.74 13.518 28.22 1494.03 1021.078 7.05 7.04 13.420 28.28 1493.77 1021.143 7.35 7.34 13.292 28.34 1493.42 1021.217 7.65 7.64 13.155 28.39 1493.02 1021.282 7.95 7.94 12.964 28.48 1492.49 1021.395 8.25 8.24 12.844 28.56 1492.18 1021.478 8.55 8.54 12.723 28.62 1491.84 1021.547 8.85 8.84 12.638 28.69 1491.64 1021.622 9.15 9.13 12.558 28.76 1491.45 1021.689 9.45 9.44 12.511 28.79 1491.34 1021.723 9.75 9.73 12.463 28.82 1491.21 1021.755 10.05 10.03 12.430 28.84 1491.13 1021.781 10.35 10.33 12.390 28.87 1491.03 1021.810 10.65 10.63 12.337 28.92 1490.90 1021.857 10.95 10.93 12.296 28.94 1490.79 1021.882 11.25 11.23 12.259 28.97 1490.70 1021.913 11.55 11.53 12.242 28.97 1490.66 1021.923 11.85 11.83 12.225 28.99 1490.62 1021.939 12.15 12.13 12.199 29.00 1490.56 1021.954 12.45 12.43 12.174 29.02 1490.49 1021.972 12.75 12.73 12.151 29.04 1490.44 1021.994 13.05 13.03 12.134 29.05 1490.40 1022.006 13.35 13.32 12.124 29.06 1490.38 1022.017 13.65 13.62 12.113 29.06 1490.35 1022.022 13.95 13.92 12.097 29.08 1490.32 1022.040 14.25 14.22 12.090 29.08 1490.30 1022.042 14.55 14.52 12.085 29.08 1490.30 1022.049 14.85 14.82 12.067 29.09 1490.25 1022.058 15.15 15.12 12.043 29.11 1490.19 1022.077 15.45 15.42 12.012 29.12 1490.11 1022.099 15.75 15.72 11.981 29.14 1490.03 1022.122 16.05 16.02 11.957 29.16 1489.97 1022.136 16.35 16.32 11.929 29.19 1489.91 1022.166 16.65 16.62 11.925 29.18 1489.90 1022.165 16.95 16.92 11.923 29.18 1489.89 1022.166 17.25 17.21 11.912 29.20 1489.88 1022.181 17.55 17.51 11.867 29.23 1489.77 1022.217 17.85 17.81 11.810 29.27 1489.62 1022.257 18.15 18.11 11.776 29.28 1489.52 1022.273 18.45 18.41 11.770 29.28 1489.50 1022.274 18.75 18.71 11.775 29.28 1489.52 1022.274 19.05 19.01 11.783 29.27 1489.54 1022.266 19.35 19.31 11.794 29.27 1489.58 1022.265 19.65 19.61 11.811 29.25 1489.63 1022.253 19.95 19.91 11.828 29.24 1489.68 1022.244 20.25 20.21 11.831 29.24 1489.69 1022.241 20.55 20.51 11.822 29.24 1489.67 1022.248 20.85 20.80 11.817 29.25 1489.67 1022.253 21.15 21.10 11.818 29.24 1489.67 1022.251 21.45 21.40 11.810 29.25 1489.65 1022.256 21.75 21.70 11.798 29.25 1489.62 1022.264 22.05 22.00 11.778 29.26 1489.57 1022.277 22.35 22.30 11.765 29.27 1489.54 1022.288 22.65 22.60 11.751 29.28 1489.50 1022.296 22.95 22.90 11.712 29.31 1489.41 1022.332 23.25 23.20 11.687 29.34 1489.35 1022.356 23.55 23.50 11.660 29.35 1489.29 1022.374 23.85 23.80 11.640 29.37 1489.24 1022.391 24.15 24.10 11.610 29.39 1489.16 1022.413 24.45 24.39 11.589 29.41 1489.12 1022.434 24.75 24.69 11.578 29.41 1489.09 1022.440 25.05 24.99 11.558 29.42 1489.04 1022.454 25.35 25.29 11.539 29.44 1488.99 1022.469 25.65 25.59 11.537 29.43 1488.99 1022.470 25.95 25.89 11.535 29.44 1488.99 1022.473 26.25 26.19 11.532 29.44 1488.99 1022.478 26.55 26.49 11.527 29.44 1488.98 1022.480 26.85 26.79 11.524 29.45 1488.98 1022.486 27.15 27.09 11.516 29.45 1488.96 1022.495 27.45 27.39 11.511 29.45 1488.95 1022.498 27.75 27.68 11.510 29.46 1488.95 1022.501 28.05 27.98 11.512 29.45 1488.96 1022.498 28.35 28.28 11.523 29.44 1488.99 1022.491 28.65 28.58 11.523 29.45 1489.00 1022.495 28.95 28.88 11.515 29.45 1488.99 1022.503 29.25 29.18 11.496 29.46 1488.94 1022.517 29.55 29.48 11.487 29.48 1488.93 1022.528 29.85 29.78 11.482 29.48 1488.92 1022.533 30.15 30.08 11.484 29.48 1488.93 1022.535 30.45 30.38 11.494 29.48 1488.96 1022.531 30.75 30.68 11.502 29.47 1488.99 1022.527 31.05 30.98 11.507 29.47 1489.02 1022.527 31.35 31.27 11.502 29.47 1489.00 1022.531 31.65 31.57 11.489 29.48 1488.97 1022.540 31.95 31.87 11.475 29.49 1488.94 1022.551 32.25 32.17 11.466 29.50 1488.92 1022.562 32.55 32.47 11.451 29.51 1488.89 1022.576 32.85 32.77 11.442 29.52 1488.87 1022.583 33.15 33.07 11.432 29.52 1488.84 1022.588 33.45 33.37 11.423 29.53 1488.83 1022.596 33.75 33.67 11.411 29.54 1488.80 1022.608 34.05 33.97 11.398 29.55 1488.77 1022.620 34.35 34.27 11.380 29.56 1488.73 1022.637 34.65 34.56 11.352 29.58 1488.66 1022.659 34.95 34.86 11.333 29.59 1488.61 1022.670 35.25 35.16 11.328 29.60 1488.61 1022.678 35.55 35.46 11.325 29.60 1488.61 1022.681 35.85 35.76 11.329 29.60 1488.62 1022.681 36.15 36.06 11.328 29.60 1488.62 1022.682 36.45 36.36 11.324 29.60 1488.62 1022.686 36.75 36.66 11.317 29.60 1488.60 1022.688 37.05 36.96 11.311 29.61 1488.59 1022.699 37.35 37.26 11.311 29.61 1488.60 1022.701 37.65 37.55 11.311 29.62 1488.61 1022.705 37.95 37.85 11.308 29.61 1488.60 1022.703 38.25 38.15 11.304 29.62 1488.59 1022.709 38.55 38.45 11.301 29.62 1488.59 1022.713 38.85 38.75 11.293 29.62 1488.58 1022.720 39.15 39.05 11.285 29.63 1488.55 1022.724 39.45 39.35 11.287 29.63 1488.57 1022.727 39.75 39.65 11.288 29.63 1488.58 1022.728 40.05 39.95 11.287 29.63 1488.58 1022.730 40.35 40.25 11.285 29.62 1488.57 1022.726 40.65 40.55 11.279 29.63 1488.56 1022.737 40.95 40.84 11.273 29.65 1488.57 1022.751 41.25 41.14 11.266 29.66 1488.56 1022.764 41.55 41.44 11.243 29.67 1488.50 1022.776 41.85 41.74 11.236 29.71 1488.52 1022.809 42.15 42.04 11.196 29.77 1488.45 1022.861 42.45 42.34 11.155 29.82 1488.38 1022.914 42.75 42.64 10.908 30.05 1487.78 1023.132 43.05 42.94 10.702 30.22 1487.26 1023.305 43.35 43.23 10.381 30.52 1486.47 1023.590 43.58 43.46 10.132 30.74 1485.85 1023.807