*2019/08/26 15:30:08.18 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/11 19:47:36.000 END TIME : UTC 2016/07/11 19:47:48.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 63 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.86 2 Depth metres 0.15 18.87 3 Temperature 'deg C (ITS90)' 10.396 17.391 4 Conductivity S/m 1.9908 3.23972 5 Conductance:Specific S/m 2.34813 4.57543 6 Salinity PSS-78 14.14 28.91 7 Speed:Sound m/s 1484.16 1491.14 8 Density kg/m^3 1009.491 1022.223 $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 : 222 LATITUDE : 49 18.86513 N ! (deg min) LONGITUDE : 123 8.45580 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 19:42:45 63 63 HDREDIT2 3.1.1 2017/12/13 11:31:12 ? ? CALIB 12.0 2019/08/26 15:30:08 63 63 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 19:42:44 -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_194736 % Cast time (UTC),2016-07-11 19:47:36 % Cast time (local),2016-07-11 19:47:36 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3144188 % Start longitude,-123.14093 % Start altitude,-14.079999923706055 % Start GPS horizontal error(Meter),1.6399999856948853 % Start GPS vertical error(Meter),2.0399999618530273 % Start GPS number of satellites,7 % End latitude,49.31445 % End longitude,-123.141015 % End altitude,-17.040000915527344 % End GPS horizontal error(Meter),9.6899995803833 % End GPS vertical error(Meter),12.680000305175781 % End GPS number of satellites,6 % Cast duration (Seconds),50.8 % 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 17.391 1.99080 2.34813 14.14 1490.29 1009.491 0.45 0.45 17.266 2.00301 2.36951 14.27 1490.06 1009.623 0.75 0.76 17.105 2.03230 2.41336 14.56 1489.88 1009.875 1.05 1.06 16.784 2.10059 2.51361 15.21 1489.60 1010.440 1.35 1.36 16.533 2.14479 2.58205 15.66 1489.31 1010.833 1.65 1.67 16.258 2.32428 2.81677 17.22 1490.21 1012.076 1.95 1.97 15.990 2.50139 3.05123 18.79 1491.14 1013.328 2.25 2.27 15.834 2.51335 3.07751 18.96 1490.84 1013.493 2.55 2.57 15.526 2.52393 3.11399 19.19 1490.11 1013.735 2.85 2.87 15.158 2.58893 3.22344 19.92 1489.75 1014.365 3.15 3.17 14.780 2.73718 3.44037 21.38 1490.20 1015.560 3.45 3.47 14.520 2.81045 3.55572 22.16 1490.24 1016.208 3.75 3.77 14.323 2.84082 3.61212 22.54 1490.03 1016.536 4.05 4.08 14.183 2.84481 3.63017 22.65 1489.70 1016.654 4.35 4.38 14.041 2.84549 3.64420 22.74 1489.34 1016.750 4.65 4.68 13.931 2.85302 3.66416 22.87 1489.12 1016.873 4.95 4.98 13.792 2.86532 3.69321 23.07 1488.88 1017.048 5.25 5.28 13.677 2.88475 3.72930 23.31 1488.78 1017.257 5.55 5.58 13.567 2.89632 3.75494 23.48 1488.61 1017.409 5.85 5.88 13.480 2.90582 3.77576 23.61 1488.48 1017.533 6.15 6.18 13.382 2.91227 3.79377 23.73 1488.30 1017.643 6.45 6.48 13.180 2.93868 3.84847 24.10 1488.04 1017.963 6.75 6.78 13.019 2.96018 3.89305 24.40 1487.84 1018.222 7.05 7.08 12.793 2.99709 3.96513 24.88 1487.64 1018.637 7.35 7.38 12.611 3.02612 4.02292 25.27 1487.47 1018.970 7.65 7.68 12.504 3.04864 4.06439 25.55 1487.44 1019.206 7.95 7.98 12.415 3.05640 4.08450 25.68 1487.29 1019.326 8.25 8.28 12.321 3.06246 4.10284 25.80 1487.11 1019.437 8.55 8.58 12.197 3.07213 4.12951 25.97 1486.89 1019.595 8.85 8.88 12.133 3.07654 4.14264 26.06 1486.77 1019.675 9.15 9.18 12.054 3.07984 4.15588 26.14 1486.61 1019.756 9.45 9.48 11.948 3.08443 4.17405 26.26 1486.38 1019.867 9.75 9.78 11.852 3.09598 4.20062 26.44 1486.26 1020.021 10.05 10.08 11.784 3.10687 4.22313 26.59 1486.20 1020.151 10.35 10.38 11.709 3.11500 4.24288 26.72 1486.10 1020.267 10.65 10.68 11.586 3.13017 4.27782 26.95 1485.95 1020.469 10.95 10.98 11.440 3.15072 4.32321 27.26 1485.80 1020.730 11.25 11.28 11.280 3.17912 4.38136 27.65 1485.70 1021.062 11.55 11.58 11.165 3.18574 4.40440 27.80 1485.48 1021.198 11.85 11.88 11.026 3.19319 4.43181 27.97 1485.20 1021.361 12.15 12.18 10.870 3.21274 4.47834 28.28 1485.02 1021.629 12.45 12.48 10.780 3.22525 4.50704 28.48 1484.93 1021.793 12.75 12.78 10.685 3.23022 4.52601 28.60 1484.74 1021.906 13.05 13.08 10.657 3.23085 4.53051 28.63 1484.68 1021.934 13.35 13.38 10.632 3.22934 4.53158 28.63 1484.60 1021.943 13.65 13.67 10.604 3.22764 4.53269 28.64 1484.51 1021.953 13.95 13.97 10.573 3.22816 4.53740 28.66 1484.44 1021.982 14.25 14.27 10.544 3.22708 4.53962 28.68 1484.35 1021.998 14.55 14.57 10.526 3.23062 4.54681 28.73 1484.36 1022.040 14.85 14.87 10.515 3.23291 4.55142 28.76 1484.36 1022.067 15.15 15.17 10.495 3.23400 4.55553 28.78 1484.32 1022.092 15.45 15.47 10.473 3.23634 4.56166 28.82 1484.30 1022.128 15.75 15.77 10.448 3.23687 4.56568 28.85 1484.24 1022.153 16.05 16.07 10.439 3.23660 4.56641 28.85 1484.22 1022.159 16.35 16.37 10.431 3.23724 4.56843 28.86 1484.21 1022.172 16.65 16.67 10.420 3.23815 4.57101 28.88 1484.20 1022.188 16.95 16.97 10.424 3.23863 4.57127 28.88 1484.22 1022.191 17.25 17.27 10.420 3.23972 4.57328 28.90 1484.22 1022.203 17.55 17.56 10.417 3.23897 4.57264 28.89 1484.21 1022.201 17.85 17.86 10.409 3.23804 4.57237 28.89 1484.18 1022.202 18.15 18.16 10.403 3.23808 4.57320 28.89 1484.17 1022.208 18.45 18.46 10.396 3.23814 4.57412 28.90 1484.16 1022.215 18.86 18.87 10.403 3.23968 4.57543 28.91 1484.20 1022.223