*2019/08/26 15:30:32.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 00:15:13.000 END TIME : UTC 2017/03/03 00:15:37.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 123 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.66 2 Depth metres 0.15 36.6 3 Temperature 'deg C (ITS90)' 7.429 7.813 4 Conductivity S/m 2.75789 2.94415 5 Conductance:Specific S/m 4.25218 4.48682 6 Salinity PSS-78 26.32 27.96 7 Speed:Sound m/s 1469.52 1473.64 8 Density kg/m^3 1020.54 1021.949 $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 : 313 LATITUDE : 49 17.88626 N ! (deg min) LONGITUDE : 123 5.01217 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 21:05:27 123 123 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:32 123 123 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:05:26 -HEADER EDITS: 2017/12/13 11:33:18 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 15:30:32 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_20170303_001513 % Cast time (UTC),2017-03-03 00:15:13 % Cast time (local),2017-03-03 00:15:13 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2981044 % Start longitude,-123.0835361 % Start altitude,-18.149999618530273 % Start GPS horizontal error(Meter),6.929999828338623 % Start GPS vertical error(Meter),9.0299997329711914 % Start GPS number of satellites,5 % End latitude,49.2980235 % End longitude,-123.0837716 % End altitude,-14.130000114440918 % End GPS horizontal error(Meter),10.079999923706055 % End GPS vertical error(Meter),11.899999618530273 % End GPS number of satellites,5 % Cast duration (Seconds),86 % 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 7.429 2.75789 4.25218 26.32 1469.52 1020.540 0.45 0.45 7.432 2.75865 4.25302 26.33 1469.54 1020.546 0.75 0.75 7.436 2.75918 4.25326 26.33 1469.57 1020.549 1.05 1.05 7.444 2.75935 4.25249 26.32 1469.60 1020.546 1.35 1.35 7.454 2.76179 4.25499 26.34 1469.66 1020.560 1.65 1.65 7.461 2.76478 4.25865 26.37 1469.73 1020.581 1.95 1.95 7.461 2.76882 4.26482 26.41 1469.79 1020.615 2.25 2.25 7.460 2.76900 4.26524 26.41 1469.79 1020.619 2.55 2.55 7.459 2.77237 4.27054 26.45 1469.84 1020.649 2.85 2.85 7.462 2.77701 4.27736 26.50 1469.91 1020.686 3.15 3.15 7.466 2.77733 4.27725 26.50 1469.93 1020.687 3.45 3.45 7.468 2.77752 4.27731 26.50 1469.94 1020.689 3.75 3.75 7.469 2.77792 4.27776 26.50 1469.96 1020.692 4.05 4.04 7.470 2.77835 4.27828 26.50 1469.97 1020.696 4.35 4.34 7.470 2.77878 4.27902 26.51 1469.98 1020.702 4.65 4.64 7.472 2.77894 4.27899 26.51 1469.99 1020.703 4.95 4.94 7.474 2.77904 4.27890 26.51 1470.00 1020.703 5.25 5.24 7.473 2.77897 4.27885 26.51 1470.01 1020.704 5.55 5.54 7.473 2.77905 4.27904 26.51 1470.01 1020.707 5.85 5.84 7.472 2.77945 4.27972 26.51 1470.02 1020.712 6.15 6.14 7.472 2.77967 4.28017 26.52 1470.02 1020.715 6.45 6.44 7.472 2.77931 4.27960 26.51 1470.02 1020.714 6.75 6.74 7.472 2.78012 4.28085 26.52 1470.04 1020.722 7.05 7.04 7.473 2.78165 4.28300 26.54 1470.07 1020.734 7.35 7.34 7.475 2.78326 4.28527 26.55 1470.10 1020.748 7.65 7.64 7.476 2.78352 4.28549 26.55 1470.11 1020.750 7.95 7.94 7.478 2.78445 4.28674 26.56 1470.13 1020.758 8.25 8.24 7.477 2.78527 4.28803 26.57 1470.15 1020.767 8.55 8.54 7.477 2.78499 4.28763 26.57 1470.15 1020.766 8.85 8.84 7.477 2.78556 4.28852 26.57 1470.16 1020.772 9.15 9.14 7.478 2.78576 4.28874 26.57 1470.17 1020.774 9.45 9.44 7.478 2.78585 4.28889 26.57 1470.17 1020.776 9.75 9.74 7.478 2.78643 4.28974 26.58 1470.19 1020.782 10.05 10.04 7.479 2.78642 4.28959 26.58 1470.19 1020.783 10.35 10.34 7.480 2.78716 4.29057 26.59 1470.21 1020.789 10.65 10.64 7.481 2.78722 4.29052 26.59 1470.22 1020.790 10.95 10.94 7.482 2.78861 4.29251 26.60 1470.25 1020.802 11.25 11.23 7.483 2.78958 4.29385 26.61 1470.27 1020.811 11.55 11.54 7.484 2.79131 4.29637 26.63 1470.30 1020.825 11.85 11.83 7.486 2.79312 4.29891 26.64 1470.33 1020.840 12.15 12.13 7.487 2.79384 4.29991 26.65 1470.35 1020.847 12.45 12.43 7.488 2.79562 4.30253 26.67 1470.38 1020.862 12.75 12.73 7.489 2.79756 4.30543 26.69 1470.41 1020.879 13.05 13.03 7.489 2.79850 4.30681 26.70 1470.43 1020.888 13.35 13.33 7.491 2.79966 4.30841 26.71 1470.45 1020.897 13.65 13.63 7.491 2.80088 4.31026 26.72 1470.47 1020.909 13.95 13.93 7.491 2.80443 4.31569 26.76 1470.53 1020.939 14.25 14.23 7.489 2.80571 4.31792 26.77 1470.54 1020.952 14.55 14.53 7.487 2.80755 4.32100 26.79 1470.57 1020.970 14.85 14.83 7.487 2.80990 4.32468 26.82 1470.60 1020.991 15.15 15.13 7.485 2.81037 4.32562 26.82 1470.61 1020.998 15.45 15.43 7.485 2.81232 4.32858 26.84 1470.64 1021.015 15.75 15.73 7.485 2.81250 4.32892 26.85 1470.64 1021.018 16.05 16.03 7.485 2.81249 4.32891 26.85 1470.65 1021.019 16.35 16.33 7.483 2.81303 4.33001 26.85 1470.65 1021.026 16.65 16.63 7.481 2.81307 4.33027 26.86 1470.65 1021.029 16.95 16.93 7.479 2.81319 4.33078 26.86 1470.65 1021.033 17.25 17.23 7.478 2.81346 4.33129 26.86 1470.66 1021.037 17.55 17.53 7.478 2.81389 4.33197 26.87 1470.67 1021.042 17.85 17.82 7.479 2.81379 4.33174 26.86 1470.67 1021.042 18.15 18.12 7.480 2.81368 4.33142 26.86 1470.68 1021.042 18.45 18.42 7.480 2.81435 4.33247 26.87 1470.69 1021.049 18.75 18.72 7.481 2.81439 4.33231 26.87 1470.70 1021.049 19.05 19.02 7.482 2.81463 4.33263 26.87 1470.71 1021.052 19.35 19.32 7.482 2.81456 4.33252 26.87 1470.72 1021.053 19.65 19.62 7.483 2.81490 4.33291 26.87 1470.73 1021.056 19.95 19.92 7.482 2.81541 4.33384 26.88 1470.74 1021.062 20.25 20.22 7.481 2.81570 4.33435 26.88 1470.74 1021.066 20.55 20.52 7.481 2.81652 4.33559 26.89 1470.76 1021.074 20.85 20.82 7.483 2.81681 4.33587 26.89 1470.77 1021.077 21.15 21.12 7.483 2.81686 4.33589 26.89 1470.78 1021.079 21.45 21.42 7.484 2.81747 4.33672 26.90 1470.80 1021.084 21.75 21.72 7.487 2.81829 4.33760 26.90 1470.82 1021.090 22.05 22.02 7.489 2.81942 4.33902 26.91 1470.85 1021.099 22.35 22.32 7.491 2.82048 4.34040 26.92 1470.87 1021.108 22.65 22.62 7.493 2.82413 4.34578 26.96 1470.93 1021.138 22.95 22.92 7.496 2.82703 4.34979 26.99 1470.98 1021.161 23.25 23.22 7.501 2.82962 4.35316 27.01 1471.03 1021.180 23.55 23.52 7.507 2.83203 4.35598 27.03 1471.09 1021.196 23.85 23.82 7.513 2.83578 4.36102 27.07 1471.16 1021.224 24.15 24.11 7.522 2.83784 4.36292 27.08 1471.22 1021.236 24.45 24.41 7.536 2.84369 4.37005 27.13 1471.34 1021.275 24.75 24.71 7.550 2.85649 4.38785 27.25 1471.55 1021.372 25.05 25.01 7.562 2.86403 4.39776 27.32 1471.69 1021.426 25.35 25.31 7.575 2.86830 4.40255 27.36 1471.79 1021.453 25.65 25.61 7.589 2.87257 4.40733 27.39 1471.89 1021.479 25.95 25.91 7.600 2.87620 4.41137 27.42 1471.97 1021.502 26.25 26.21 7.617 2.88144 4.41702 27.46 1472.10 1021.534 26.55 26.51 7.636 2.88664 4.42251 27.50 1472.22 1021.564 26.85 26.81 7.652 2.89388 4.43143 27.57 1472.37 1021.613 27.15 27.11 7.676 2.90492 4.44505 27.66 1472.59 1021.687 27.45 27.41 7.692 2.91050 4.45136 27.71 1472.71 1021.722 27.75 27.71 7.701 2.91381 4.45525 27.74 1472.78 1021.744 28.05 28.01 7.712 2.91664 4.45802 27.76 1472.86 1021.760 28.35 28.31 7.724 2.91811 4.45872 27.76 1472.91 1021.765 28.65 28.61 7.735 2.91947 4.45929 27.77 1472.97 1021.769 28.95 28.90 7.744 2.92201 4.46190 27.79 1473.03 1021.784 29.25 29.20 7.755 2.92611 4.46670 27.82 1473.12 1021.811 29.55 29.50 7.761 2.93103 4.47330 27.87 1473.21 1021.848 29.85 29.80 7.767 2.93331 4.47606 27.89 1473.26 1021.864 30.15 30.10 7.774 2.93510 4.47773 27.90 1473.31 1021.874 30.45 30.40 7.778 2.93744 4.48078 27.92 1473.36 1021.892 30.75 30.70 7.784 2.93711 4.47951 27.91 1473.37 1021.886 31.05 31.00 7.786 2.93730 4.47950 27.91 1473.39 1021.887 31.35 31.30 7.788 2.93830 4.48076 27.92 1473.41 1021.895 31.65 31.60 7.792 2.93824 4.48015 27.92 1473.42 1021.893 31.95 31.90 7.793 2.93939 4.48176 27.93 1473.45 1021.903 32.25 32.20 7.795 2.93948 4.48165 27.93 1473.46 1021.904 32.55 32.49 7.795 2.93975 4.48197 27.93 1473.47 1021.907 32.85 32.80 7.793 2.94026 4.48309 27.94 1473.47 1021.914 33.15 33.09 7.793 2.94015 4.48295 27.94 1473.48 1021.914 33.45 33.39 7.796 2.94060 4.48319 27.94 1473.50 1021.917 33.75 33.69 7.797 2.94085 4.48335 27.94 1473.51 1021.919 34.05 33.99 7.798 2.94075 4.48309 27.94 1473.52 1021.919 34.35 34.29 7.799 2.94095 4.48333 27.94 1473.52 1021.922 34.65 34.59 7.800 2.94099 4.48322 27.94 1473.53 1021.922 34.95 34.89 7.800 2.94086 4.48304 27.94 1473.54 1021.923 35.25 35.19 7.801 2.94216 4.48488 27.95 1473.56 1021.934 35.55 35.49 7.802 2.94315 4.48627 27.96 1473.58 1021.943 35.85 35.79 7.803 2.94319 4.48618 27.96 1473.59 1021.943 36.15 36.09 7.805 2.94320 4.48588 27.96 1473.60 1021.943 36.45 36.39 7.807 2.94399 4.48682 27.96 1473.62 1021.949 36.66 36.60 7.813 2.94415 4.48627 27.96 1473.64 1021.947