*2019/08/26 15:30:37.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/22 16:46:29.000 END TIME : UTC 2017/06/22 16:46:43.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 74 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22 2 Depth metres 0.15 22.07 3 Temperature 'deg C (ITS90)' 11.344 14.055 4 Conductivity S/m 2.16165 2.77563 5 Conductance:Specific S/m 2.76743 3.81854 6 Salinity PSS-78 16.82 23.76 7 Speed:Sound m/s 1481.4 1482.8 8 Density kg/m^3 1012.177 1018.085 $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 : 2017-98 AGENCY : Canadian Hydrographic Service COUNTRY : Canada PROJECT : CHS CTD Data Acquisition SCIENTIST : Dangerfield N. *LOCATION EVENT NUMBER : 542 LATITUDE : 49 17.79827 N ! (deg min) LONGITUDE : 123 0.32276 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 00:52:59 74 74 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:37 74 74 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:52:59 -HEADER EDITS: 2017/12/13 11:33:21 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 15:30:37 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,CC1606003 % File name,CC1606003_20170622_164629 % Cast time (UTC),2017-06-22 16:46:29 % Cast time (local),2017-06-22 16:46:29 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2966379 % Start longitude,-123.0053794 % Start altitude,-18.6200008392334 % Start GPS horizontal error(Meter),3.4700000286102295 % Start GPS vertical error(Meter),3.9100000858306885 % Start GPS number of satellites,5 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),75.8 % 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”. *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 14.055 2.16165 2.76743 16.82 1482.41 1012.177 0.45 0.45 14.012 2.16178 2.77065 16.84 1482.29 1012.202 0.75 0.76 13.974 2.16959 2.78337 16.92 1482.26 1012.273 1.05 1.06 13.960 2.17880 2.79621 17.01 1482.31 1012.342 1.35 1.36 13.946 2.18114 2.80019 17.03 1482.30 1012.366 1.65 1.66 13.926 2.18647 2.80853 17.09 1482.30 1012.413 1.95 1.96 13.892 2.19499 2.82193 17.18 1482.29 1012.488 2.25 2.27 13.803 2.20597 2.84253 17.31 1482.15 1012.607 2.55 2.57 13.671 2.22128 2.87203 17.50 1481.92 1012.778 2.85 2.87 13.541 2.23745 2.90266 17.70 1481.71 1012.955 3.15 3.17 13.423 2.29995 2.99292 18.30 1482.01 1013.436 3.45 3.47 13.332 2.35836 3.07626 18.85 1482.35 1013.880 3.75 3.77 13.232 2.42996 3.17787 19.53 1482.80 1014.421 4.05 4.08 13.071 2.45563 3.22507 19.84 1482.61 1014.689 4.35 4.38 12.972 2.46695 3.24836 19.99 1482.45 1014.824 4.65 4.68 12.915 2.47969 3.27007 20.14 1482.43 1014.946 4.95 4.98 12.856 2.48690 3.28464 20.23 1482.34 1015.030 5.25 5.28 12.809 2.49070 3.29382 20.29 1482.25 1015.086 5.55 5.58 12.777 2.49319 3.29990 20.33 1482.19 1015.123 5.85 5.88 12.752 2.49685 3.30690 20.38 1482.16 1015.164 6.15 6.18 12.717 2.50700 3.32345 20.48 1482.17 1015.256 6.45 6.49 12.686 2.51642 3.33866 20.59 1482.19 1015.340 6.75 6.79 12.661 2.52394 3.35084 20.67 1482.20 1015.408 7.05 7.09 12.635 2.53266 3.36478 20.76 1482.22 1015.485 7.35 7.39 12.604 2.53337 3.36848 20.78 1482.15 1015.510 7.65 7.69 12.565 2.53666 3.37639 20.83 1482.08 1015.557 7.95 7.99 12.526 2.54694 3.39353 20.95 1482.08 1015.653 8.25 8.29 12.492 2.55775 3.41107 21.06 1482.10 1015.750 8.55 8.59 12.464 2.57112 3.43145 21.20 1482.17 1015.862 8.85 8.89 12.428 2.57813 3.44414 21.28 1482.15 1015.934 9.15 9.20 12.393 2.58253 3.45320 21.34 1482.10 1015.987 9.45 9.50 12.362 2.58908 3.46486 21.42 1482.09 1016.053 9.75 9.80 12.330 2.59330 3.47344 21.48 1482.05 1016.103 10.05 10.10 12.294 2.59830 3.48354 21.54 1482.00 1016.162 10.35 10.40 12.270 2.60404 3.49348 21.61 1482.00 1016.218 10.65 10.70 12.248 2.60740 3.50004 21.65 1481.98 1016.256 10.95 11.00 12.227 2.61218 3.50848 21.71 1481.97 1016.305 11.25 11.30 12.203 2.61424 3.51347 21.74 1481.94 1016.335 11.55 11.60 12.174 2.61580 3.51836 21.77 1481.87 1016.365 11.85 11.90 12.146 2.61934 3.52576 21.82 1481.84 1016.409 12.15 12.21 12.128 2.62144 3.53029 21.85 1481.81 1016.436 12.45 12.51 12.113 2.62596 3.53781 21.90 1481.82 1016.478 12.75 12.81 12.105 2.63161 3.54617 21.96 1481.87 1016.524 13.05 13.11 12.087 2.64014 3.55940 22.05 1481.91 1016.597 13.35 13.41 12.038 2.64331 3.56837 22.10 1481.82 1016.651 13.65 13.71 11.979 2.64636 3.57819 22.17 1481.69 1016.711 13.95 14.01 11.917 2.65274 3.59279 22.26 1481.59 1016.796 14.25 14.31 11.854 2.66358 3.61372 22.40 1481.53 1016.915 14.55 14.61 11.793 2.68545 3.64944 22.64 1481.60 1017.111 14.85 14.91 11.744 2.70230 3.67716 22.82 1481.65 1017.264 15.15 15.21 11.706 2.71712 3.70116 22.98 1481.71 1017.396 15.45 15.51 11.673 2.73296 3.72614 23.15 1481.80 1017.533 15.75 15.81 11.621 2.73907 3.73971 23.24 1481.73 1017.612 16.05 16.11 11.572 2.74182 3.74848 23.30 1481.62 1017.665 16.35 16.41 11.535 2.74279 3.75368 23.33 1481.53 1017.698 16.65 16.71 11.507 2.74837 3.76412 23.40 1481.53 1017.757 16.95 17.02 11.485 2.75196 3.77136 23.45 1481.51 1017.799 17.25 17.32 11.466 2.75349 3.77542 23.47 1481.47 1017.824 17.55 17.62 11.447 2.75527 3.77981 23.50 1481.45 1017.850 17.85 17.92 11.434 2.75657 3.78296 23.52 1481.43 1017.870 18.15 18.22 11.427 2.75616 3.78315 23.52 1481.41 1017.873 18.45 18.52 11.424 2.75628 3.78364 23.53 1481.40 1017.877 18.75 18.82 11.419 2.75637 3.78423 23.53 1481.40 1017.882 19.05 19.12 11.416 2.75715 3.78563 23.54 1481.40 1017.891 19.35 19.42 11.413 2.75694 3.78563 23.54 1481.40 1017.892 19.65 19.72 11.413 2.75736 3.78627 23.54 1481.40 1017.897 19.95 20.02 11.419 2.75808 3.78658 23.55 1481.44 1017.899 20.25 20.32 11.420 2.76056 3.78991 23.57 1481.47 1017.918 20.55 20.62 11.413 2.76146 3.79185 23.58 1481.47 1017.931 20.85 20.92 11.405 2.76413 3.79637 23.61 1481.48 1017.957 21.15 21.22 11.393 2.76839 3.80344 23.66 1481.50 1017.997 21.45 21.52 11.377 2.77127 3.80912 23.70 1481.49 1018.030 21.75 21.82 11.356 2.77257 3.81304 23.72 1481.45 1018.054 22.00 22.07 11.344 2.77563 3.81854 23.76 1481.45 1018.085