*2019/08/26 15:30:36.74 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/21 23:41:38.000 END TIME : UTC 2017/06/21 23:41:56.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 92 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.52 2 Depth metres 0.15 27.53 3 Temperature 'deg C (ITS90)' 9.964 13.237 4 Conductivity S/m 2.43004 3.11932 5 Conductance:Specific S/m 3.17761 4.46048 6 Salinity PSS-78 19.53 28.06 7 Speed:Sound m/s 1481.21 1482.82 8 Density kg/m^3 1014.403 1021.668 $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 : 533 LATITUDE : 49 18.46524 N ! (deg min) LONGITUDE : 123 6.01493 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 00:44:06 92 92 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 92 92 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:44:06 -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 15:30:36 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_20170621_234138mid % Cast time (UTC),2017-06-21 23:41:38 % Cast time (local),2017-06-21 23:41:38 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.307754 % Start longitude,-123.1002488 % Start altitude,-15.069999694824219 % Start GPS horizontal error(Meter),3.0399999618530273 % Start GPS vertical error(Meter),3.7899999618530273 % Start GPS number of satellites,6 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),166 % 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 13.237 2.43004 3.17761 19.53 1482.76 1014.403 0.45 0.45 13.095 2.45846 3.22679 19.85 1482.65 1014.679 0.75 0.75 13.047 2.48724 3.26864 20.13 1482.82 1014.904 1.05 1.05 12.999 2.49700 3.28561 20.25 1482.79 1015.000 1.35 1.36 12.889 2.50839 3.31014 20.41 1482.60 1015.143 1.65 1.66 12.790 2.52450 3.34022 20.60 1482.49 1015.314 1.95 1.96 12.767 2.53272 3.35309 20.69 1482.52 1015.386 2.25 2.26 12.735 2.54006 3.36567 20.77 1482.51 1015.457 2.55 2.56 12.662 2.54722 3.38172 20.88 1482.38 1015.551 2.85 2.86 12.597 2.56181 3.40696 21.04 1482.36 1015.692 3.15 3.16 12.530 2.56706 3.42004 21.13 1482.23 1015.770 3.45 3.46 12.470 2.57084 3.43048 21.20 1482.11 1015.834 3.75 3.77 12.423 2.58410 3.45259 21.34 1482.12 1015.957 4.05 4.07 12.373 2.60658 3.48722 21.57 1482.22 1016.145 4.35 4.37 12.283 2.62479 3.52012 21.79 1482.16 1016.330 4.65 4.67 12.118 2.63968 3.55583 22.02 1481.86 1016.539 4.95 4.97 11.929 2.68628 3.63713 22.57 1481.84 1016.990 5.25 5.27 11.799 2.74635 3.73157 23.20 1482.14 1017.504 5.55 5.57 11.662 2.76914 3.77657 23.50 1482.02 1017.759 5.85 5.87 11.566 2.77362 3.79261 23.60 1481.80 1017.855 6.15 6.17 11.527 2.77724 3.80163 23.66 1481.73 1017.908 6.45 6.47 11.488 2.77978 3.80921 23.71 1481.66 1017.954 6.75 6.77 11.459 2.78313 3.81682 23.76 1481.62 1017.999 7.05 7.07 11.439 2.78729 3.82458 23.81 1481.61 1018.043 7.35 7.37 11.421 2.79059 3.83099 23.85 1481.61 1018.080 7.65 7.67 11.401 2.79258 3.83583 23.89 1481.58 1018.109 7.95 7.97 11.386 2.79318 3.83828 23.90 1481.55 1018.125 8.25 8.27 11.366 2.80092 3.85106 23.99 1481.58 1018.196 8.55 8.57 11.336 2.80785 3.86372 24.07 1481.58 1018.268 8.85 8.87 11.318 2.81449 3.87482 24.15 1481.61 1018.330 9.15 9.17 11.293 2.81759 3.88173 24.19 1481.58 1018.371 9.45 9.47 11.278 2.81898 3.88527 24.21 1481.56 1018.392 9.75 9.78 11.270 2.81960 3.88692 24.23 1481.55 1018.403 10.05 10.07 11.265 2.82087 3.88926 24.24 1481.55 1018.417 10.35 10.38 11.258 2.82074 3.88980 24.24 1481.54 1018.422 10.65 10.68 11.252 2.82235 3.89273 24.26 1481.54 1018.440 10.95 10.98 11.247 2.82498 3.89685 24.29 1481.56 1018.463 11.25 11.28 11.239 2.82715 3.90065 24.32 1481.57 1018.486 11.55 11.58 11.233 2.82784 3.90234 24.33 1481.56 1018.497 11.85 11.88 11.223 2.82978 3.90601 24.35 1481.57 1018.518 12.15 12.18 11.216 2.83277 3.91090 24.39 1481.58 1018.546 12.45 12.48 11.211 2.83447 3.91382 24.40 1481.59 1018.564 12.75 12.78 11.202 2.83712 3.91847 24.43 1481.60 1018.591 13.05 13.08 11.187 2.83984 3.92389 24.47 1481.60 1018.622 13.35 13.38 11.176 2.84396 3.93071 24.52 1481.62 1018.661 13.65 13.68 11.165 2.84481 3.93307 24.53 1481.60 1018.676 13.95 13.98 11.148 2.84611 3.93674 24.56 1481.57 1018.698 14.25 14.28 11.129 2.85244 3.94753 24.63 1481.60 1018.759 14.55 14.58 11.105 2.85935 3.95973 24.71 1481.61 1018.827 14.85 14.88 11.071 2.86305 3.96860 24.77 1481.57 1018.879 15.15 15.18 11.040 2.86756 3.97829 24.83 1481.54 1018.935 15.45 15.48 11.010 2.86942 3.98424 24.87 1481.47 1018.971 15.75 15.78 10.965 2.87376 3.99517 24.94 1481.41 1019.035 16.05 16.08 10.909 2.87835 4.00782 25.02 1481.31 1019.109 16.35 16.38 10.836 2.88783 4.02926 25.16 1481.21 1019.231 16.65 16.68 10.737 2.92022 4.08566 25.54 1481.32 1019.543 16.95 16.98 10.570 2.97320 4.17934 26.18 1481.48 1020.061 17.25 17.28 10.425 3.06677 4.32853 27.19 1482.18 1020.877 17.55 17.58 10.286 3.10027 4.39305 27.63 1482.21 1021.237 17.85 17.88 10.156 3.10401 4.41459 27.76 1481.90 1021.365 18.15 18.18 10.088 3.10657 4.42678 27.84 1481.75 1021.437 18.45 18.48 10.065 3.10726 4.43067 27.86 1481.70 1021.461 18.75 18.78 10.051 3.10761 4.43293 27.88 1481.67 1021.476 19.05 19.07 10.041 3.10835 4.43527 27.89 1481.66 1021.490 19.35 19.38 10.033 3.10893 4.43710 27.91 1481.65 1021.502 19.65 19.67 10.028 3.10988 4.43913 27.92 1481.65 1021.515 19.95 19.97 10.027 3.11121 4.44116 27.93 1481.67 1021.527 20.25 20.27 10.026 3.11187 4.44222 27.94 1481.68 1021.534 20.55 20.57 10.022 3.11213 4.44313 27.95 1481.68 1021.541 20.85 20.87 10.013 3.11221 4.44434 27.95 1481.66 1021.549 21.15 21.17 10.006 3.11194 4.44482 27.95 1481.64 1021.553 21.45 21.47 10.003 3.11252 4.44613 27.96 1481.64 1021.562 21.75 21.77 9.999 3.11273 4.44692 27.97 1481.64 1021.568 22.05 22.07 9.994 3.11336 4.44837 27.98 1481.64 1021.577 22.35 22.37 9.991 3.11432 4.45022 27.99 1481.65 1021.589 22.65 22.67 9.988 3.11455 4.45089 28.00 1481.65 1021.594 22.95 22.97 9.985 3.11451 4.45121 28.00 1481.64 1021.597 23.25 23.27 9.982 3.11540 4.45283 28.01 1481.65 1021.607 23.55 23.57 9.980 3.11686 4.45523 28.02 1481.67 1021.622 23.85 23.86 9.978 3.11765 4.45653 28.03 1481.68 1021.630 24.15 24.16 9.976 3.11825 4.45764 28.04 1481.68 1021.638 24.45 24.46 9.974 3.11889 4.45888 28.05 1481.69 1021.646 24.75 24.76 9.974 3.11855 4.45833 28.04 1481.69 1021.644 25.05 25.06 9.973 3.11903 4.45920 28.05 1481.70 1021.650 25.35 25.36 9.969 3.11874 4.45932 28.05 1481.69 1021.653 25.65 25.66 9.968 3.11793 4.45829 28.04 1481.68 1021.648 25.95 25.96 9.969 3.11864 4.45921 28.05 1481.69 1021.655 26.25 26.26 9.969 3.11911 4.45978 28.05 1481.71 1021.659 26.55 26.56 9.968 3.11856 4.45916 28.05 1481.70 1021.657 26.85 26.86 9.965 3.11862 4.45962 28.05 1481.70 1021.661 27.15 27.16 9.964 3.11895 4.46023 28.05 1481.71 1021.665 27.52 27.53 9.966 3.11932 4.46048 28.06 1481.72 1021.668