*2019/08/26 15:30:08.02 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/11 19:39:16.000 END TIME : UTC 2016/07/11 19:39:28.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 61 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.05 2 Depth metres 0.15 18.07 3 Temperature 'deg C (ITS90)' 10.333 17.55 4 Conductivity S/m 1.97089 3.23339 5 Conductance:Specific S/m 2.31599 4.57558 6 Salinity PSS-78 13.93 28.9 7 Speed:Sound m/s 1483.92 1491.49 8 Density kg/m^3 1009.3 1022.226 $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 : 219 LATITUDE : 49 19.04002 N ! (deg min) LONGITUDE : 123 8.20690 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 19:40:30 61 61 HDREDIT2 3.1.1 2017/12/13 11:31:12 ? ? CALIB 12.0 2019/08/26 15:30:08 61 61 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 19:40:29 -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_193916 % Cast time (UTC),2016-07-11 19:39:16 % Cast time (local),2016-07-11 19:39:16 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3173336 % Start longitude,-123.1367817 % Start altitude,77.029998779296875 % Start GPS horizontal error(Meter),5.5999999046325684 % Start GPS vertical error(Meter),3.4000000953674316 % Start GPS number of satellites,5 % End latitude,49.3158416 % End longitude,-123.1367668 % End altitude,-15.159999847412109 % End GPS horizontal error(Meter),12.119999885559082 % End GPS vertical error(Meter),7.28000020980835 % End GPS number of satellites,5 % Cast duration (Seconds),92.2 % 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 17.550 1.97089 2.31599 13.93 1490.56 1009.300 0.45 0.45 17.461 1.97484 2.32549 13.99 1490.35 1009.366 0.75 0.76 17.301 2.01465 2.38136 14.35 1490.26 1009.677 1.05 1.06 17.127 2.10780 2.50171 15.14 1490.62 1010.316 1.35 1.36 17.043 2.16374 2.57327 15.62 1490.89 1010.694 1.65 1.67 16.979 2.18568 2.60331 15.81 1490.92 1010.859 1.95 1.97 16.784 2.21736 2.65336 16.14 1490.67 1011.150 2.25 2.27 16.304 2.30027 2.78457 17.00 1490.12 1011.906 2.55 2.57 16.090 2.43343 2.96113 18.18 1490.78 1012.850 2.85 2.87 15.922 2.51805 3.07667 18.95 1491.13 1013.476 3.15 3.18 15.728 2.57357 3.15946 19.51 1491.14 1013.939 3.45 3.48 15.591 2.64725 3.26091 20.19 1491.49 1014.490 3.75 3.78 15.365 2.69072 3.33303 20.67 1491.31 1014.906 4.05 4.08 15.045 2.74093 3.42230 21.27 1490.96 1015.426 4.35 4.38 14.666 2.76824 3.48940 21.71 1490.22 1015.840 4.65 4.68 14.404 2.80934 3.56480 22.22 1489.94 1016.278 4.95 4.98 14.233 2.84727 3.62865 22.64 1489.88 1016.642 5.25 5.28 14.064 2.87759 3.68319 23.01 1489.74 1016.957 5.55 5.58 13.917 2.89513 3.71963 23.25 1489.53 1017.173 5.85 5.88 13.839 2.90175 3.73564 23.36 1489.40 1017.270 6.15 6.18 13.761 2.90721 3.75018 23.45 1489.25 1017.359 6.45 6.49 13.645 2.91190 3.76750 23.57 1489.00 1017.469 6.75 6.79 13.510 2.91835 3.78908 23.71 1488.71 1017.604 7.05 7.09 13.419 2.92293 3.80400 23.81 1488.52 1017.696 7.35 7.39 13.320 2.92847 3.82104 23.92 1488.32 1017.802 7.65 7.69 13.209 2.93690 3.84319 24.06 1488.12 1017.936 7.95 7.99 13.108 2.94407 3.86275 24.19 1487.93 1018.054 8.25 8.29 12.993 2.95743 3.89204 24.39 1487.77 1018.227 8.55 8.59 12.854 2.97417 3.92843 24.63 1487.58 1018.440 8.85 8.89 12.716 3.01143 3.99224 25.06 1487.62 1018.799 9.15 9.19 12.625 3.03349 4.03122 25.32 1487.62 1019.020 9.45 9.49 12.505 3.05355 4.07089 25.59 1487.52 1019.249 9.75 9.79 12.423 3.06794 4.09901 25.78 1487.47 1019.410 10.05 10.09 12.337 3.07136 4.11299 25.87 1487.28 1019.497 10.35 10.39 12.258 3.07422 4.12559 25.95 1487.11 1019.575 10.65 10.69 12.148 3.07771 4.14248 26.06 1486.86 1019.680 10.95 10.99 12.048 3.08401 4.16217 26.19 1486.66 1019.798 11.25 11.29 11.979 3.08985 4.17788 26.29 1486.55 1019.891 11.55 11.59 11.882 3.09778 4.19957 26.43 1486.39 1020.020 11.85 11.89 11.778 3.10451 4.22063 26.57 1486.19 1020.146 12.15 12.19 11.665 3.11509 4.24805 26.75 1486.01 1020.307 12.45 12.49 11.538 3.13558 4.29084 27.04 1485.91 1020.552 12.75 12.79 11.467 3.14707 4.31492 27.20 1485.86 1020.690 13.05 13.09 11.388 3.15636 4.33712 27.35 1485.76 1020.819 13.35 13.39 11.235 3.15981 4.36015 27.49 1485.39 1020.960 13.65 13.69 11.050 3.16671 4.39214 27.70 1484.98 1021.152 13.95 13.98 10.916 3.19609 4.44939 28.09 1484.98 1021.475 14.25 14.29 10.856 3.20959 4.47567 28.26 1484.98 1021.624 14.55 14.58 10.702 3.22175 4.51206 28.50 1484.72 1021.836 14.85 14.88 10.621 3.22721 4.52992 28.62 1484.57 1021.941 15.15 15.18 10.550 3.22818 4.54031 28.68 1484.40 1022.005 15.45 15.48 10.501 3.23046 4.54988 28.74 1484.30 1022.062 15.75 15.78 10.450 3.23058 4.55658 28.79 1484.17 1022.104 16.05 16.08 10.450 3.23052 4.55649 28.78 1484.17 1022.105 16.35 16.38 10.460 3.23042 4.55505 28.77 1484.20 1022.097 16.65 16.68 10.447 3.23036 4.55662 28.78 1484.17 1022.108 16.95 16.98 10.415 3.23072 4.56128 28.81 1484.10 1022.137 17.25 17.28 10.370 3.23048 4.56665 28.85 1483.98 1022.171 17.55 17.58 10.357 3.23070 4.56870 28.86 1483.95 1022.185 17.85 17.88 10.338 3.23192 4.57284 28.89 1483.92 1022.210 18.05 18.07 10.333 3.23339 4.57558 28.90 1483.93 1022.226