*2019/08/26 15:30:29.91 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/02/28 23:05:04.000 END TIME : UTC 2017/02/28 23:05:32.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 142 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.32 2 Depth metres 0.15 42.24 3 Temperature 'deg C (ITS90)' 7.642 7.845 4 Conductivity S/m 2.82731 2.94769 5 Conductance:Specific S/m 4.33013 4.48731 6 Salinity PSS-78 26.88 27.97 7 Speed:Sound m/s 1471.07 1473.86 8 Density kg/m^3 1020.955 1021.974 $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 : 276 LATITUDE : 49 17.94881 N ! (deg min) LONGITUDE : 123 6.37817 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 20:28:42 142 142 HDREDIT2 3.1.1 2017/12/13 11:33:17 ? ? CALIB 12.0 2019/08/26 15:30:29 142 142 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 20:28:41 -HEADER EDITS: 2017/12/13 11:33:17 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 15:30:29 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_20170228_230504 % Cast time (UTC),2017-02-28 23:05:04 % Cast time (local),2017-02-28 23:05:04 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2991468 % Start longitude,-123.1063029 % Start altitude,-45.130001068115234 % Start GPS horizontal error(Meter),6.1399998664855957 % Start GPS vertical error(Meter),11.590000152587891 % Start GPS number of satellites,5 % End latitude,49.2998718 % End longitude,-123.1062656 % End altitude,-10.300000190734863 % End GPS horizontal error(Meter),4.1500000953674316 % End GPS vertical error(Meter),9.1800003051757812 % End GPS number of satellites,4 % Cast duration (Seconds),152 % 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 7.649 2.82840 4.33155 26.89 1471.09 1020.961 0.45 0.45 7.647 2.82731 4.33013 26.88 1471.07 1020.955 0.75 0.75 7.647 2.82809 4.33136 26.89 1471.09 1020.963 1.05 1.05 7.647 2.82879 4.33244 26.90 1471.10 1020.970 1.35 1.35 7.645 2.82825 4.33183 26.89 1471.09 1020.968 1.65 1.65 7.644 2.82811 4.33173 26.89 1471.09 1020.969 1.95 1.95 7.642 2.82867 4.33287 26.90 1471.10 1020.976 2.25 2.25 7.643 2.82900 4.33329 26.90 1471.11 1020.980 2.55 2.55 7.643 2.82871 4.33279 26.90 1471.11 1020.978 2.85 2.85 7.644 2.82864 4.33257 26.90 1471.12 1020.979 3.15 3.15 7.644 2.82916 4.33332 26.90 1471.13 1020.984 3.45 3.44 7.645 2.82905 4.33304 26.90 1471.14 1020.984 3.75 3.74 7.645 2.82916 4.33327 26.90 1471.14 1020.986 4.05 4.04 7.644 2.82900 4.33313 26.90 1471.14 1020.987 4.35 4.34 7.644 2.82965 4.33412 26.91 1471.15 1020.993 4.65 4.64 7.645 2.82966 4.33398 26.91 1471.16 1020.994 4.95 4.94 7.645 2.82946 4.33364 26.91 1471.16 1020.993 5.25 5.24 7.644 2.82926 4.33354 26.90 1471.16 1020.994 5.55 5.54 7.645 2.82968 4.33405 26.91 1471.18 1020.998 5.85 5.84 7.645 2.82918 4.33327 26.90 1471.17 1020.995 6.15 6.14 7.645 2.82958 4.33390 26.91 1471.18 1021.000 6.45 6.44 7.647 2.82951 4.33348 26.90 1471.19 1020.999 6.75 6.74 7.647 2.82928 4.33310 26.90 1471.20 1020.998 7.05 7.04 7.646 2.82938 4.33337 26.90 1471.20 1021.001 7.35 7.34 7.645 2.82958 4.33392 26.91 1471.20 1021.005 7.65 7.64 7.644 2.83025 4.33507 26.91 1471.21 1021.013 7.95 7.94 7.645 2.82974 4.33407 26.91 1471.22 1021.009 8.25 8.24 7.648 2.83005 4.33423 26.91 1471.23 1021.011 8.55 8.54 7.647 2.83005 4.33427 26.91 1471.24 1021.012 8.85 8.84 7.648 2.83053 4.33491 26.91 1471.25 1021.017 9.15 9.14 7.648 2.83064 4.33513 26.91 1471.25 1021.019 9.45 9.44 7.645 2.83071 4.33555 26.92 1471.25 1021.023 9.75 9.73 7.645 2.83162 4.33693 26.93 1471.27 1021.032 10.05 10.03 7.644 2.83150 4.33701 26.93 1471.27 1021.034 10.35 10.33 7.644 2.83241 4.33838 26.93 1471.28 1021.042 10.65 10.63 7.645 2.83156 4.33686 26.93 1471.28 1021.035 10.95 10.93 7.645 2.83234 4.33809 26.93 1471.30 1021.043 11.25 11.23 7.645 2.83157 4.33689 26.93 1471.29 1021.038 11.55 11.53 7.647 2.83232 4.33786 26.93 1471.31 1021.045 11.85 11.83 7.647 2.83257 4.33823 26.93 1471.32 1021.048 12.15 12.13 7.647 2.83322 4.33920 26.94 1471.33 1021.054 12.45 12.43 7.647 2.83325 4.33919 26.94 1471.34 1021.056 12.75 12.73 7.647 2.83390 4.34016 26.95 1471.35 1021.062 13.05 13.03 7.646 2.83555 4.34284 26.96 1471.38 1021.078 13.35 13.33 7.647 2.83822 4.34685 26.99 1471.42 1021.100 13.65 13.63 7.648 2.83841 4.34697 26.99 1471.43 1021.102 13.95 13.93 7.649 2.83964 4.34871 27.00 1471.45 1021.113 14.25 14.23 7.649 2.83966 4.34871 27.00 1471.46 1021.114 14.55 14.53 7.650 2.84008 4.34923 27.01 1471.47 1021.118 14.85 14.83 7.648 2.83968 4.34889 27.01 1471.46 1021.118 15.15 15.13 7.648 2.83971 4.34896 27.01 1471.47 1021.120 15.45 15.43 7.650 2.83941 4.34831 27.00 1471.47 1021.117 15.75 15.72 7.651 2.83984 4.34880 27.00 1471.49 1021.121 16.05 16.02 7.652 2.84137 4.35092 27.02 1471.52 1021.134 16.35 16.32 7.653 2.84117 4.35051 27.02 1471.52 1021.133 16.65 16.62 7.653 2.84129 4.35067 27.02 1471.53 1021.135 16.95 16.92 7.658 2.84172 4.35072 27.02 1471.55 1021.137 17.25 17.22 7.661 2.84207 4.35081 27.02 1471.57 1021.138 17.55 17.52 7.664 2.84269 4.35137 27.02 1471.59 1021.143 17.85 17.82 7.664 2.84509 4.35507 27.05 1471.63 1021.164 18.15 18.12 7.667 2.84682 4.35736 27.07 1471.66 1021.177 18.45 18.42 7.670 2.84782 4.35843 27.07 1471.69 1021.184 18.75 18.72 7.677 2.85127 4.36282 27.10 1471.76 1021.209 19.05 19.02 7.682 2.85407 4.36645 27.13 1471.81 1021.230 19.35 19.32 7.682 2.85422 4.36668 27.13 1471.82 1021.232 19.65 19.62 7.681 2.85470 4.36748 27.14 1471.83 1021.238 19.95 19.92 7.684 2.85494 4.36754 27.14 1471.85 1021.239 20.25 20.22 7.685 2.85731 4.37099 27.16 1471.88 1021.259 20.55 20.52 7.691 2.85917 4.37302 27.18 1471.93 1021.271 20.85 20.82 7.694 2.86050 4.37461 27.19 1471.96 1021.281 21.15 21.11 7.696 2.86181 4.37635 27.20 1471.99 1021.291 21.45 21.41 7.699 2.86458 4.38025 27.23 1472.04 1021.314 21.75 21.71 7.704 2.86722 4.38363 27.25 1472.09 1021.333 22.05 22.01 7.708 2.86736 4.38329 27.25 1472.11 1021.332 22.35 22.31 7.709 2.86750 4.38332 27.25 1472.12 1021.334 22.65 22.61 7.712 2.86870 4.38484 27.26 1472.15 1021.343 22.95 22.91 7.714 2.87158 4.38894 27.29 1472.20 1021.366 23.25 23.21 7.717 2.87427 4.39263 27.31 1472.25 1021.388 23.55 23.51 7.719 2.87593 4.39491 27.33 1472.28 1021.401 23.85 23.81 7.720 2.87695 4.39636 27.34 1472.30 1021.410 24.15 24.11 7.721 2.87680 4.39595 27.33 1472.31 1021.409 24.45 24.41 7.724 2.87778 4.39711 27.34 1472.33 1021.417 24.75 24.71 7.723 2.87893 4.39897 27.36 1472.35 1021.428 25.05 25.01 7.723 2.87860 4.39847 27.35 1472.35 1021.427 25.35 25.31 7.724 2.87772 4.39696 27.34 1472.34 1021.420 25.65 25.61 7.725 2.87794 4.39718 27.34 1472.36 1021.422 25.95 25.91 7.726 2.87810 4.39729 27.34 1472.36 1021.424 26.25 26.20 7.726 2.87846 4.39775 27.35 1472.38 1021.428 26.55 26.50 7.727 2.87891 4.39832 27.35 1472.39 1021.432 26.85 26.80 7.727 2.87982 4.39973 27.36 1472.40 1021.441 27.15 27.10 7.728 2.87937 4.39894 27.36 1472.41 1021.438 27.45 27.40 7.729 2.87983 4.39953 27.36 1472.42 1021.442 27.75 27.70 7.730 2.88259 4.40356 27.39 1472.46 1021.465 28.05 28.00 7.732 2.88406 4.40557 27.40 1472.49 1021.477 28.35 28.30 7.733 2.88339 4.40445 27.39 1472.49 1021.473 28.65 28.60 7.733 2.88328 4.40431 27.39 1472.49 1021.473 28.95 28.90 7.734 2.88458 4.40612 27.40 1472.52 1021.484 29.25 29.20 7.737 2.88599 4.40781 27.42 1472.55 1021.495 29.55 29.50 7.744 2.88781 4.40968 27.43 1472.60 1021.506 29.85 29.80 7.751 2.88949 4.41128 27.44 1472.65 1021.515 30.15 30.10 7.753 2.89412 4.41805 27.49 1472.72 1021.553 30.45 30.40 7.755 2.89642 4.42127 27.51 1472.76 1021.572 30.75 30.70 7.757 2.89829 4.42388 27.53 1472.79 1021.587 31.05 31.00 7.760 2.90207 4.42925 27.57 1472.86 1021.617 31.35 31.30 7.765 2.90263 4.42943 27.57 1472.88 1021.619 31.65 31.59 7.767 2.90350 4.43046 27.57 1472.90 1021.626 31.95 31.89 7.775 2.90802 4.43637 27.62 1472.99 1021.659 32.25 32.19 7.783 2.91298 4.44276 27.66 1473.08 1021.694 32.55 32.49 7.788 2.91435 4.44428 27.67 1473.12 1021.704 32.85 32.79 7.789 2.91535 4.44556 27.68 1473.14 1021.712 33.15 33.09 7.793 2.91546 4.44523 27.68 1473.16 1021.711 33.45 33.39 7.797 2.91814 4.44875 27.70 1473.21 1021.731 33.75 33.69 7.800 2.91854 4.44903 27.71 1473.23 1021.734 34.05 33.99 7.801 2.91972 4.45065 27.72 1473.25 1021.744 34.35 34.29 7.803 2.92093 4.45217 27.73 1473.28 1021.754 34.65 34.59 7.806 2.92098 4.45187 27.73 1473.29 1021.753 34.95 34.89 7.808 2.92221 4.45348 27.74 1473.32 1021.763 35.25 35.19 7.809 2.92474 4.45720 27.76 1473.36 1021.784 35.55 35.48 7.810 2.92706 4.46058 27.79 1473.40 1021.804 35.85 35.78 7.814 2.93049 4.46531 27.82 1473.46 1021.831 36.15 36.08 7.821 2.93335 4.46871 27.84 1473.52 1021.850 36.45 36.38 7.826 2.93513 4.47075 27.86 1473.56 1021.862 36.75 36.68 7.827 2.93587 4.47167 27.86 1473.58 1021.868 37.05 36.98 7.827 2.93643 4.47257 27.87 1473.59 1021.875 37.35 37.28 7.828 2.93589 4.47162 27.86 1473.59 1021.871 37.65 37.58 7.828 2.93619 4.47205 27.87 1473.60 1021.874 37.95 37.88 7.828 2.93710 4.47349 27.88 1473.61 1021.883 38.25 38.18 7.825 2.93565 4.47162 27.86 1473.59 1021.875 38.55 38.48 7.824 2.93713 4.47412 27.88 1473.61 1021.889 38.85 38.78 7.828 2.93928 4.47681 27.90 1473.66 1021.905 39.15 39.08 7.832 2.94047 4.47809 27.91 1473.69 1021.913 39.45 39.38 7.833 2.93958 4.47658 27.90 1473.68 1021.906 39.75 39.67 7.831 2.93975 4.47709 27.90 1473.69 1021.910 40.05 39.97 7.829 2.93980 4.47741 27.90 1473.69 1021.913 40.35 40.27 7.831 2.94083 4.47878 27.91 1473.71 1021.922 40.65 40.57 7.833 2.94249 4.48103 27.93 1473.74 1021.935 40.95 40.87 7.836 2.94290 4.48127 27.93 1473.76 1021.938 41.25 41.17 7.837 2.94354 4.48210 27.93 1473.78 1021.944 41.55 41.47 7.840 2.94604 4.48545 27.96 1473.82 1021.963 41.85 41.77 7.845 2.94769 4.48731 27.97 1473.86 1021.974 42.15 42.07 7.841 2.94714 4.48698 27.97 1473.85 1021.974 42.32 42.24 7.841 2.94688 4.48655 27.97 1473.85 1021.972