*2019/08/26 15:30:08.27 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/11 19:52:35.000 END TIME : UTC 2016/07/11 19:52:46.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 57 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 16.83 2 Depth metres 0.15 16.85 3 Temperature 'deg C (ITS90)' 10.474 17.106 4 Conductivity S/m 2.08167 3.23417 5 Conductance:Specific S/m 2.47485 4.55851 6 Salinity PSS-78 14.96 28.8 7 Speed:Sound m/s 1484.3 1491.51 8 Density kg/m^3 1010.181 1022.117 $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 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -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 : 224 LATITUDE : 49 19.02023 N ! (deg min) LONGITUDE : 123 8.30210 W ! (deg min) *INSTRUMENT TYPE : SonTek CTD MODEL : CastAway SERIAL NUMBER : CC1545005 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------- ------ ---------- -------- --------- --------- READ_CHS_CTDS 1.0 2017/12/08 19:44:15 57 57 HDREDIT2 3.1.1 2017/12/13 11:31:12 ? ? CALIB 12.0 2019/08/26 15:30:08 57 57 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 19:44:14 -HEADER EDITS: 2017/12/13 11:31:12 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: Conductivity [mS/cm] Format: F10.3 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F10.3 ==> F7.2 Channel 8: Density [kg/m^3] Format: F10.3 ==> F9.3 Channel 5: Conductance:Specific [mS/cm] Format: F10.3 ==> F9.1 Channel 7: Speed:Sound [m/s] Format: F10.3 ==> F8.2 -CALIB parameters: 2019/08/26 15:30:08 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = Q:\OSD_DataProcessing\Cruise_data\conductivity-corrections\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 $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,CC1545005 % File name,CC1545005_20160711_195235 % Cast time (UTC),2016-07-11 19:52:35 % Cast time (local),2016-07-11 19:52:35 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3170038 % Start longitude,-123.1383684 % Start altitude,-13.039999961853027 % Start GPS horizontal error(Meter),1.6799999475479126 % Start GPS vertical error(Meter),1.9900000095367432 % Start GPS number of satellites,7 % End latitude,49.3170136 % End longitude,-123.1386175 % End altitude,-0.56999999284744263 % End GPS horizontal error(Meter),14 % End GPS vertical error(Meter),22.700000762939453 % End GPS number of satellites,6 % Cast duration (Seconds),47.4 % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2015-11-20 % Temperature calibration date,2015-11-19 % Pressure calibration date,2015-11-17 % For more information about the CastAway CTD see document "CastAway CTD Principles of Operation.pdf”. *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 17.106 2.08410 2.47485 14.96 1490.33 1010.181 0.45 0.45 16.960 2.08167 2.48055 15.00 1489.91 1010.238 0.75 0.76 16.781 2.16172 2.58697 15.70 1490.14 1010.809 1.05 1.06 16.392 2.20007 2.65759 16.16 1489.42 1011.239 1.35 1.36 15.914 2.29412 2.80362 17.12 1488.98 1012.068 1.65 1.66 15.685 2.61010 3.20769 19.83 1491.36 1014.190 1.95 1.97 15.475 2.67702 3.30698 20.50 1491.45 1014.744 2.25 2.27 15.293 2.73268 3.39104 21.07 1491.51 1015.214 2.55 2.57 15.059 2.75433 3.43784 21.38 1491.10 1015.499 2.85 2.87 14.796 2.77907 3.49163 21.73 1490.65 1015.825 3.15 3.17 14.507 2.81731 3.56555 22.23 1490.27 1016.260 3.45 3.47 14.301 2.84893 3.62447 22.62 1490.05 1016.603 3.75 3.77 14.210 2.86124 3.64861 22.78 1489.94 1016.746 4.05 4.07 14.076 2.86487 3.66573 22.89 1489.62 1016.857 4.35 4.37 13.927 2.86784 3.68363 23.01 1489.26 1016.975 4.65 4.67 13.812 2.88082 3.71128 23.19 1489.09 1017.140 4.95 4.97 13.712 2.88857 3.73089 23.32 1488.91 1017.259 5.25 5.27 13.624 2.89644 3.74956 23.44 1488.76 1017.372 5.55 5.58 13.518 2.90894 3.77610 23.62 1488.61 1017.528 5.85 5.88 13.390 2.92142 3.80498 23.81 1488.41 1017.701 6.15 6.18 13.234 2.93487 3.83806 24.03 1488.14 1017.899 6.45 6.48 13.059 2.95171 3.87782 24.29 1487.85 1018.135 6.75 6.78 12.952 2.99170 3.94145 24.73 1488.00 1018.489 7.05 7.08 12.826 3.01080 3.97978 24.98 1487.87 1018.711 7.35 7.38 12.731 3.03200 4.01790 25.24 1487.86 1018.928 7.65 7.68 12.642 3.04212 4.04082 25.39 1487.73 1019.063 7.95 7.98 12.554 3.05203 4.06348 25.54 1487.61 1019.196 8.25 8.28 12.469 3.05869 4.08166 25.66 1487.46 1019.306 8.55 8.58 12.354 3.06640 4.10453 25.81 1487.25 1019.443 8.85 8.88 12.299 3.07047 4.11603 25.89 1487.15 1019.513 9.15 9.18 12.239 3.07638 4.13063 25.98 1487.06 1019.599 9.45 9.48 12.197 3.08116 4.14169 26.06 1487.01 1019.665 9.75 9.78 12.162 3.08633 4.15256 26.13 1486.97 1019.728 10.05 10.08 12.131 3.08709 4.15697 26.16 1486.91 1019.757 10.35 10.38 12.095 3.08800 4.16229 26.19 1486.83 1019.791 10.65 10.68 12.069 3.08849 4.16589 26.21 1486.77 1019.814 10.95 10.98 12.043 3.08910 4.16967 26.24 1486.71 1019.839 11.25 11.28 11.988 3.09188 4.17963 26.30 1486.60 1019.900 11.55 11.58 11.944 3.09643 4.19066 26.38 1486.54 1019.965 11.85 11.88 11.910 3.09787 4.19648 26.41 1486.47 1020.002 12.15 12.18 11.877 3.10089 4.20432 26.47 1486.42 1020.049 12.45 12.48 11.836 3.10196 4.21049 26.51 1486.32 1020.088 12.75 12.78 11.754 3.10609 4.22550 26.60 1486.16 1020.178 13.05 13.07 11.667 3.11212 4.24381 26.72 1486.00 1020.288 13.35 13.38 11.597 3.13326 4.28081 26.97 1486.05 1020.496 13.65 13.67 11.535 3.14192 4.29988 27.10 1485.99 1020.606 13.95 13.97 11.440 3.15152 4.32428 27.26 1485.85 1020.749 14.25 14.27 11.310 3.15715 4.34754 27.41 1485.58 1020.889 14.55 14.57 11.147 3.16911 4.38367 27.65 1485.29 1021.101 14.85 14.87 11.065 3.20110 4.43798 28.02 1485.44 1021.404 15.15 15.17 11.172 3.21644 4.44606 28.09 1485.91 1021.439 15.45 15.47 11.137 3.21794 4.45240 28.13 1485.84 1021.478 15.75 15.77 11.034 3.22015 4.46819 28.23 1485.60 1021.574 16.05 16.07 10.820 3.23001 4.50870 28.49 1485.15 1021.814 16.35 16.37 10.651 3.23099 4.53146 28.63 1484.72 1021.954 16.65 16.67 10.495 3.23327 4.55454 28.77 1484.34 1022.093 16.83 16.85 10.474 3.23417 4.55851 28.80 1484.30 1022.117