*2019/08/26 15:30:39.19 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/23 18:19:37.000 END TIME : UTC 2017/06/23 18:19:56.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 99 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.64 2 Depth metres 0.15 29.72 3 Temperature 'deg C (ITS90)' 10.859 14.693 4 Conductivity S/m 2.20185 2.82503 5 Conductance:Specific S/m 2.77363 3.93873 6 Salinity PSS-78 16.88 24.54 7 Speed:Sound m/s 1480.75 1484.64 8 Density kg/m^3 1012.112 1018.804 $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 : 587 LATITUDE : 49 17.79470 N ! (deg min) LONGITUDE : 123 0.31735 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 01:37:51 99 99 HDREDIT2 3.1.1 2017/12/13 11:33:23 ? ? CALIB 12.0 2019/08/26 15:30:39 99 99 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:37:50 -HEADER EDITS: 2017/12/13 11:33:23 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 15:30:39 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_20170623_181937 % Cast time (UTC),2017-06-23 18:19:37 % Cast time (local),2017-06-23 18:19:37 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2965783 % Start longitude,-123.0052892 % Start altitude,-15.020000457763672 % Start GPS horizontal error(Meter),3.0499999523162842 % Start GPS vertical error(Meter),4.1599998474121094 % 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),71.8 % 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 14.693 2.20185 2.77363 16.88 1484.64 1012.112 0.45 0.45 14.660 2.20194 2.77601 16.90 1484.56 1012.130 0.75 0.76 14.625 2.20527 2.78268 16.94 1484.49 1012.171 1.05 1.06 14.592 2.20965 2.79056 16.99 1484.44 1012.218 1.35 1.36 14.574 2.21438 2.79775 17.04 1484.44 1012.259 1.65 1.66 14.550 2.21473 2.79989 17.05 1484.38 1012.275 1.95 1.96 14.505 2.21734 2.80643 17.09 1484.28 1012.317 2.25 2.27 14.434 2.22194 2.81732 17.16 1484.13 1012.384 2.55 2.57 14.339 2.23151 2.83622 17.29 1483.96 1012.497 2.85 2.87 14.236 2.25513 2.87384 17.53 1483.90 1012.706 3.15 3.17 14.103 2.30407 2.94613 18.01 1484.01 1013.098 3.45 3.47 14.017 2.35503 3.01797 18.49 1484.28 1013.482 3.75 3.77 13.934 2.36691 3.03962 18.63 1484.17 1013.607 4.05 4.08 13.805 2.41877 3.11655 19.14 1484.33 1014.024 4.35 4.38 13.631 2.47545 3.20400 19.72 1484.41 1014.504 4.65 4.68 13.444 2.47167 3.21459 19.79 1483.85 1014.586 4.95 4.98 13.265 2.47914 3.23946 19.95 1483.42 1014.741 5.25 5.28 13.140 2.54384 3.33487 20.59 1483.75 1015.256 5.55 5.58 12.992 2.58468 3.40163 21.03 1483.76 1015.626 5.85 5.88 12.890 2.60459 3.43709 21.26 1483.69 1015.826 6.15 6.19 12.771 2.61127 3.45671 21.39 1483.43 1015.945 6.45 6.49 12.679 2.61158 3.46556 21.45 1483.18 1016.005 6.75 6.79 12.639 2.61125 3.46885 21.46 1483.07 1016.028 7.05 7.09 12.608 2.61229 3.47306 21.49 1482.99 1016.056 7.35 7.39 12.582 2.61380 3.47746 21.52 1482.94 1016.083 7.65 7.69 12.551 2.61422 3.48092 21.54 1482.86 1016.106 7.95 7.99 12.520 2.61417 3.48374 21.56 1482.78 1016.126 8.25 8.29 12.488 2.61556 3.48856 21.59 1482.71 1016.157 8.55 8.59 12.430 2.62283 3.50366 21.69 1482.63 1016.244 8.85 8.89 12.396 2.63790 3.52699 21.84 1482.70 1016.372 9.15 9.20 12.384 2.63859 3.52904 21.86 1482.68 1016.386 9.45 9.50 12.358 2.64407 3.53883 21.92 1482.67 1016.442 9.75 9.80 12.292 2.65979 3.56620 22.11 1482.65 1016.595 10.05 10.10 12.191 2.66517 3.58312 22.21 1482.43 1016.697 10.35 10.40 12.108 2.67056 3.59833 22.31 1482.26 1016.788 10.65 10.70 12.055 2.68648 3.62503 22.49 1482.29 1016.936 10.95 11.00 12.030 2.69487 3.63877 22.58 1482.32 1017.013 11.25 11.30 12.003 2.69876 3.64669 22.64 1482.29 1017.059 11.55 11.60 11.974 2.71608 3.67293 22.81 1482.40 1017.202 11.85 11.90 11.930 2.72740 3.69264 22.94 1482.41 1017.312 12.15 12.20 11.873 2.73465 3.70822 23.05 1482.33 1017.402 12.45 12.50 11.822 2.73579 3.71487 23.09 1482.20 1017.444 12.75 12.80 11.788 2.73494 3.71717 23.10 1482.10 1017.462 13.05 13.10 11.772 2.73417 3.71771 23.10 1482.06 1017.468 13.35 13.40 11.768 2.73398 3.71788 23.10 1482.05 1017.470 13.65 13.71 11.772 2.73309 3.71622 23.09 1482.06 1017.462 13.95 14.01 11.775 2.73118 3.71337 23.07 1482.05 1017.448 14.25 14.31 11.776 2.73049 3.71230 23.07 1482.05 1017.444 14.55 14.61 11.775 2.72950 3.71108 23.06 1482.04 1017.439 14.85 14.91 11.772 2.72975 3.71173 23.06 1482.04 1017.444 15.15 15.21 11.768 2.73036 3.71296 23.07 1482.04 1017.452 15.45 15.51 11.762 2.73070 3.71397 23.08 1482.03 1017.459 15.75 15.81 11.757 2.73186 3.71609 23.09 1482.03 1017.472 16.05 16.11 11.752 2.73210 3.71698 23.10 1482.02 1017.479 16.35 16.41 11.744 2.73117 3.71652 23.09 1481.99 1017.479 16.65 16.71 11.732 2.72892 3.71463 23.08 1481.94 1017.471 16.95 17.01 11.720 2.73218 3.72034 23.12 1481.95 1017.504 17.25 17.31 11.710 2.73927 3.73099 23.19 1482.00 1017.563 17.55 17.61 11.697 2.74352 3.73803 23.23 1482.02 1017.603 17.85 17.91 11.678 2.74655 3.74411 23.28 1482.01 1017.638 18.15 18.21 11.657 2.74878 3.74927 23.31 1481.98 1017.669 18.45 18.51 11.635 2.74922 3.75214 23.33 1481.92 1017.688 18.75 18.82 11.616 2.75229 3.75828 23.37 1481.91 1017.724 19.05 19.11 11.599 2.75503 3.76384 23.40 1481.89 1017.756 19.35 19.42 11.581 2.75566 3.76656 23.42 1481.86 1017.774 19.65 19.72 11.561 2.75854 3.77254 23.46 1481.84 1017.809 19.95 20.02 11.548 2.76102 3.77728 23.49 1481.83 1017.837 20.25 20.32 11.536 2.76578 3.78500 23.54 1481.86 1017.880 20.55 20.62 11.515 2.76890 3.79147 23.59 1481.84 1017.918 20.85 20.92 11.491 2.76957 3.79492 23.61 1481.78 1017.940 21.15 21.22 11.460 2.77059 3.79944 23.64 1481.71 1017.969 21.45 21.52 11.425 2.77493 3.80906 23.70 1481.67 1018.024 21.75 21.82 11.401 2.77800 3.81586 23.74 1481.64 1018.064 22.05 22.12 11.375 2.78021 3.82158 23.78 1481.60 1018.099 22.35 22.42 11.348 2.78571 3.83198 23.85 1481.59 1018.158 22.65 22.72 11.326 2.79131 3.84206 23.92 1481.59 1018.215 22.95 23.02 11.295 2.79484 3.85017 23.97 1481.55 1018.262 23.25 23.32 11.260 2.79779 3.85794 24.02 1481.49 1018.308 23.55 23.62 11.227 2.80042 3.86508 24.07 1481.43 1018.351 23.85 23.92 11.196 2.80125 3.86959 24.10 1481.36 1018.379 24.15 24.22 11.175 2.80159 3.87226 24.11 1481.31 1018.397 24.45 24.52 11.164 2.80154 3.87335 24.12 1481.28 1018.405 24.75 24.82 11.157 2.80110 3.87354 24.12 1481.26 1018.408 25.05 25.12 11.146 2.80180 3.87564 24.13 1481.24 1018.421 25.35 25.42 11.127 2.80220 3.87823 24.15 1481.20 1018.438 25.65 25.72 11.099 2.80412 3.88392 24.19 1481.14 1018.473 25.95 26.02 11.071 2.80786 3.89216 24.24 1481.11 1018.520 26.25 26.32 11.039 2.81380 3.90381 24.32 1481.10 1018.587 26.55 26.62 11.023 2.81653 3.90940 24.35 1481.08 1018.619 26.85 26.92 11.021 2.81745 3.91081 24.36 1481.10 1018.628 27.15 27.22 11.002 2.81918 3.91530 24.39 1481.07 1018.655 27.45 27.52 10.968 2.81968 3.91968 24.42 1480.98 1018.683 27.75 27.82 10.940 2.82041 3.92373 24.45 1480.92 1018.708 28.05 28.12 10.926 2.82199 3.92748 24.47 1480.90 1018.731 28.35 28.43 10.912 2.82417 3.93211 24.50 1480.89 1018.758 28.65 28.73 10.891 2.82370 3.93371 24.51 1480.83 1018.770 28.95 29.03 10.873 2.82503 3.93757 24.53 1480.80 1018.793 29.25 29.33 10.859 2.82405 3.93769 24.53 1480.75 1018.797 29.64 29.72 10.862 2.82499 3.93873 24.54 1480.78 1018.804