*2019/08/26 15:30:31.57 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/02 18:03:11.000 END TIME : UTC 2017/03/02 18:03:37.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 134 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.05 2 Depth metres 0.15 39.98 3 Temperature 'deg C (ITS90)' 7.324 7.803 4 Conductivity S/m 2.7643 2.93831 5 Conductance:Specific S/m 4.27584 4.47902 6 Salinity PSS-78 26.47 27.91 7 Speed:Sound m/s 1469.29 1473.58 8 Density kg/m^3 1020.669 1021.919 $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 : 301 LATITUDE : 49 17.87372 N ! (deg min) LONGITUDE : 123 5.01650 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 20:53:45 134 134 HDREDIT2 3.1.1 2017/12/13 11:33:17 ? ? CALIB 12.0 2019/08/26 15:30:31 134 134 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 20:53:44 -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 15:30:31 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_20170302_180311 % Cast time (UTC),2017-03-02 18:03:11 % Cast time (local),2017-03-02 18:03:11 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2978953 % Start longitude,-123.0836084 % Start altitude,-7.7899999618530273 % Start GPS horizontal error(Meter),3.2100000381469727 % Start GPS vertical error(Meter),4.130000114440918 % Start GPS number of satellites,6 % End latitude,49.2982514 % End longitude,-123.0843788 % End altitude,-11.4399995803833 % End GPS horizontal error(Meter),34.430000305175781 % End GPS vertical error(Meter),47.860000610351562 % End GPS number of satellites,6 % Cast duration (Seconds),120.2 % 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 7.324 2.76430 4.27597 26.47 1469.29 1020.669 0.45 0.45 7.330 2.76479 4.27584 26.47 1469.32 1020.670 0.75 0.75 7.331 2.76735 4.27974 26.50 1469.36 1020.692 1.05 1.05 7.328 2.76740 4.28023 26.50 1469.35 1020.696 1.35 1.35 7.324 2.76847 4.28236 26.51 1469.36 1020.709 1.65 1.65 7.324 2.76834 4.28221 26.51 1469.36 1020.709 1.95 1.95 7.326 2.76989 4.28432 26.53 1469.39 1020.722 2.25 2.25 7.328 2.77083 4.28544 26.53 1469.42 1020.729 2.55 2.55 7.331 2.77093 4.28527 26.53 1469.43 1020.729 2.85 2.85 7.331 2.77099 4.28530 26.53 1469.44 1020.731 3.15 3.15 7.334 2.77124 4.28539 26.53 1469.45 1020.733 3.45 3.44 7.339 2.77179 4.28549 26.54 1469.48 1020.734 3.75 3.75 7.343 2.77322 4.28715 26.55 1469.52 1020.744 4.05 4.04 7.346 2.77375 4.28766 26.55 1469.54 1020.748 4.35 4.34 7.349 2.77516 4.28945 26.56 1469.57 1020.759 4.65 4.64 7.353 2.77642 4.29089 26.57 1469.60 1020.768 4.95 4.94 7.354 2.77950 4.29540 26.60 1469.65 1020.794 5.25 5.24 7.355 2.78176 4.29881 26.63 1469.69 1020.813 5.55 5.54 7.356 2.78249 4.29979 26.63 1469.71 1020.820 5.85 5.84 7.358 2.78352 4.30111 26.64 1469.73 1020.828 6.15 6.14 7.360 2.78471 4.30269 26.65 1469.76 1020.838 6.45 6.44 7.364 2.78929 4.30931 26.70 1469.83 1020.874 6.75 6.74 7.372 2.79223 4.31271 26.72 1469.90 1020.894 7.05 7.04 7.380 2.79519 4.31627 26.75 1469.97 1020.914 7.35 7.34 7.385 2.79609 4.31698 26.75 1470.00 1020.919 7.65 7.64 7.389 2.79674 4.31745 26.76 1470.02 1020.923 7.95 7.94 7.392 2.79741 4.31802 26.76 1470.05 1020.927 8.25 8.24 7.397 2.80163 4.32397 26.80 1470.12 1020.960 8.55 8.54 7.404 2.80301 4.32513 26.81 1470.16 1020.968 8.85 8.84 7.409 2.80438 4.32654 26.82 1470.20 1020.976 9.15 9.14 7.413 2.80677 4.32975 26.84 1470.25 1020.995 9.45 9.44 7.416 2.80783 4.33089 26.85 1470.28 1021.002 9.75 9.74 7.420 2.81056 4.33465 26.88 1470.33 1021.024 10.05 10.04 7.426 2.81188 4.33587 26.89 1470.37 1021.031 10.35 10.34 7.433 2.81323 4.33699 26.90 1470.41 1021.039 10.65 10.63 7.438 2.81599 4.34059 26.92 1470.47 1021.059 10.95 10.93 7.441 2.81668 4.34130 26.93 1470.49 1021.064 11.25 11.23 7.443 2.81669 4.34093 26.93 1470.50 1021.063 11.55 11.53 7.446 2.81808 4.34269 26.94 1470.54 1021.074 11.85 11.83 7.448 2.81876 4.34344 26.94 1470.56 1021.079 12.15 12.13 7.450 2.81893 4.34355 26.94 1470.57 1021.081 12.45 12.43 7.450 2.81843 4.34273 26.94 1470.56 1021.078 12.75 12.73 7.450 2.81923 4.34399 26.95 1470.58 1021.086 13.05 13.03 7.451 2.81940 4.34412 26.95 1470.59 1021.088 13.35 13.33 7.452 2.82018 4.34523 26.95 1470.61 1021.095 13.65 13.63 7.454 2.82105 4.34620 26.96 1470.63 1021.102 13.95 13.93 7.457 2.82349 4.34965 26.98 1470.67 1021.122 14.25 14.23 7.461 2.82359 4.34923 26.98 1470.69 1021.121 14.55 14.53 7.462 2.82383 4.34942 26.98 1470.70 1021.123 14.85 14.83 7.464 2.82387 4.34926 26.98 1470.71 1021.123 15.15 15.13 7.465 2.82436 4.34983 26.99 1470.73 1021.128 15.45 15.43 7.466 2.82458 4.35004 26.99 1470.74 1021.130 15.75 15.73 7.467 2.82465 4.35007 26.99 1470.75 1021.131 16.05 16.02 7.468 2.82468 4.34995 26.99 1470.76 1021.132 16.35 16.32 7.468 2.82503 4.35053 26.99 1470.77 1021.137 16.65 16.62 7.468 2.82498 4.35042 26.99 1470.77 1021.137 16.95 16.92 7.469 2.82523 4.35070 26.99 1470.78 1021.140 17.25 17.22 7.468 2.82542 4.35109 27.00 1470.79 1021.143 17.55 17.52 7.469 2.82491 4.35014 26.99 1470.79 1021.140 17.85 17.82 7.469 2.82537 4.35088 26.99 1470.80 1021.145 18.15 18.12 7.470 2.82580 4.35146 27.00 1470.81 1021.149 18.45 18.42 7.471 2.82670 4.35261 27.01 1470.83 1021.157 18.75 18.72 7.474 2.82701 4.35277 27.01 1470.85 1021.159 19.05 19.02 7.477 2.82734 4.35284 27.01 1470.87 1021.160 19.35 19.32 7.480 2.82857 4.35431 27.02 1470.89 1021.170 19.65 19.62 7.485 2.82969 4.35534 27.03 1470.93 1021.176 19.95 19.92 7.488 2.83085 4.35672 27.04 1470.96 1021.185 20.25 20.22 7.490 2.83212 4.35848 27.05 1470.98 1021.196 20.55 20.52 7.493 2.83243 4.35849 27.05 1471.00 1021.197 20.85 20.82 7.497 2.83435 4.36091 27.07 1471.04 1021.211 21.15 21.12 7.502 2.83578 4.36243 27.08 1471.08 1021.220 21.45 21.42 7.505 2.83927 4.36737 27.11 1471.14 1021.248 21.75 21.71 7.516 2.84221 4.37043 27.13 1471.22 1021.266 22.05 22.02 7.529 2.84627 4.37494 27.16 1471.31 1021.291 22.35 22.31 7.542 2.84755 4.37523 27.17 1471.37 1021.294 22.65 22.61 7.554 2.85081 4.37859 27.19 1471.45 1021.313 22.95 22.91 7.563 2.85637 4.38596 27.25 1471.56 1021.353 23.25 23.21 7.566 2.85814 4.38828 27.26 1471.59 1021.367 23.55 23.51 7.568 2.85904 4.38936 27.27 1471.62 1021.374 23.85 23.81 7.570 2.85973 4.39013 27.27 1471.64 1021.380 24.15 24.11 7.572 2.86056 4.39114 27.28 1471.66 1021.386 24.45 24.41 7.574 2.86057 4.39082 27.28 1471.67 1021.386 24.75 24.71 7.578 2.86145 4.39167 27.29 1471.70 1021.392 25.05 25.01 7.581 2.86373 4.39473 27.31 1471.74 1021.409 25.35 25.31 7.588 2.86681 4.39852 27.33 1471.81 1021.431 25.65 25.61 7.596 2.86862 4.40023 27.35 1471.86 1021.441 25.95 25.91 7.601 2.86887 4.39992 27.34 1471.88 1021.441 26.25 26.21 7.608 2.87098 4.40223 27.36 1471.93 1021.454 26.55 26.51 7.614 2.87420 4.40645 27.39 1471.99 1021.478 26.85 26.80 7.616 2.87668 4.40991 27.41 1472.04 1021.498 27.15 27.11 7.623 2.87928 4.41292 27.44 1472.10 1021.515 27.45 27.40 7.632 2.88207 4.41605 27.46 1472.16 1021.533 27.75 27.70 7.643 2.88506 4.41915 27.48 1472.24 1021.551 28.05 28.00 7.654 2.88885 4.42348 27.51 1472.33 1021.575 28.35 28.30 7.661 2.89089 4.42564 27.53 1472.38 1021.588 28.65 28.60 7.664 2.89227 4.42737 27.54 1472.41 1021.599 28.95 28.90 7.669 2.89286 4.42757 27.54 1472.44 1021.601 29.25 29.20 7.673 2.89416 4.42899 27.55 1472.47 1021.610 29.55 29.50 7.681 2.89775 4.43335 27.58 1472.55 1021.634 29.85 29.80 7.695 2.90132 4.43701 27.61 1472.64 1021.655 30.15 30.10 7.704 2.90499 4.44130 27.64 1472.72 1021.679 30.45 30.40 7.712 2.90757 4.44422 27.66 1472.78 1021.696 30.75 30.70 7.716 2.90904 4.44596 27.67 1472.81 1021.707 31.05 31.00 7.721 2.91043 4.44737 27.68 1472.85 1021.715 31.35 31.30 7.726 2.91056 4.44687 27.68 1472.87 1021.714 31.65 31.59 7.730 2.91265 4.44951 27.70 1472.91 1021.729 31.95 31.89 7.735 2.91341 4.44998 27.70 1472.94 1021.733 32.25 32.19 7.740 2.91379 4.44983 27.70 1472.97 1021.733 32.55 32.49 7.752 2.91830 4.45522 27.74 1473.07 1021.763 32.85 32.79 7.759 2.92819 4.46929 27.84 1473.22 1021.840 33.15 33.09 7.769 2.93005 4.47071 27.85 1473.28 1021.849 33.45 33.39 7.776 2.93046 4.47048 27.85 1473.31 1021.849 33.75 33.69 7.779 2.93094 4.47077 27.85 1473.33 1021.852 34.05 33.99 7.782 2.93088 4.47024 27.85 1473.34 1021.850 34.35 34.29 7.785 2.93164 4.47107 27.86 1473.36 1021.856 34.65 34.59 7.788 2.93206 4.47130 27.86 1473.38 1021.858 34.95 34.89 7.788 2.93252 4.47201 27.86 1473.39 1021.863 35.25 35.19 7.788 2.93308 4.47273 27.87 1473.41 1021.869 35.55 35.49 7.790 2.93493 4.47540 27.89 1473.44 1021.884 35.85 35.78 7.790 2.93485 4.47519 27.88 1473.44 1021.884 36.15 36.08 7.789 2.93457 4.47491 27.88 1473.44 1021.884 36.45 36.38 7.790 2.93465 4.47496 27.88 1473.45 1021.886 36.75 36.68 7.792 2.93533 4.47563 27.89 1473.47 1021.891 37.05 36.98 7.794 2.93598 4.47642 27.89 1473.49 1021.896 37.35 37.28 7.794 2.93537 4.47547 27.89 1473.48 1021.892 37.65 37.58 7.794 2.93552 4.47566 27.89 1473.49 1021.895 37.95 37.88 7.795 2.93638 4.47682 27.89 1473.51 1021.902 38.25 38.18 7.797 2.93643 4.47667 27.89 1473.52 1021.902 38.55 38.48 7.798 2.93656 4.47680 27.89 1473.53 1021.904 38.85 38.78 7.800 2.93743 4.47782 27.90 1473.55 1021.911 39.15 39.08 7.801 2.93831 4.47902 27.91 1473.57 1021.919 39.45 39.38 7.802 2.93794 4.47828 27.91 1473.58 1021.916 39.75 39.67 7.803 2.93758 4.47757 27.90 1473.58 1021.914 40.05 39.98 7.803 2.93743 4.47735 27.90 1473.58 1021.914