*2019/08/26 15:30:39.03 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/23 18:16:30.000 END TIME : UTC 2017/06/23 18:16:59.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 146 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.58 2 Depth metres 0.15 43.66 3 Temperature 'deg C (ITS90)' 10.491 14.061 4 Conductivity S/m 2.28666 2.82327 5 Conductance:Specific S/m 2.92706 3.96634 6 Salinity PSS-78 17.88 24.7 7 Speed:Sound m/s 1479.41 1484.06 8 Density kg/m^3 1012.993 1019.035 $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 : 585 LATITUDE : 49 17.66758 N ! (deg min) LONGITUDE : 123 0.35219 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 01:35:55 146 146 HDREDIT2 3.1.1 2017/12/13 11:33:23 ? ? CALIB 12.0 2019/08/26 15:30:39 146 146 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:35:55 -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_181630 % Cast time (UTC),2017-06-23 18:16:30 % Cast time (local),2017-06-23 18:16:30 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2944596 % Start longitude,-123.0058698 % Start altitude,-20.590000152587891 % Start GPS horizontal error(Meter),2.0199999809265137 % Start GPS vertical error(Meter),3.2100000381469727 % Start GPS number of satellites,7 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),89.4 % 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 14.061 2.28666 2.92706 17.88 1483.66 1012.993 0.45 0.45 14.000 2.30075 2.94968 18.03 1483.64 1013.120 0.75 0.76 13.944 2.33422 2.99686 18.35 1483.82 1013.372 1.05 1.06 13.847 2.36626 3.04563 18.67 1483.87 1013.639 1.35 1.36 13.709 2.39878 3.09844 19.02 1483.81 1013.933 1.65 1.66 13.626 2.42051 3.13323 19.25 1483.80 1014.126 1.95 1.96 13.575 2.43750 3.15942 19.42 1483.83 1014.270 2.25 2.26 13.536 2.46508 3.19845 19.68 1484.01 1014.479 2.55 2.56 13.511 2.47035 3.20734 19.74 1483.99 1014.530 2.85 2.87 13.495 2.47180 3.21054 19.76 1483.97 1014.550 3.15 3.17 13.482 2.47414 3.21466 19.79 1483.96 1014.575 3.45 3.47 13.470 2.47680 3.21914 19.82 1483.96 1014.601 3.75 3.77 13.453 2.48268 3.22822 19.88 1483.98 1014.652 4.05 4.07 13.431 2.48935 3.23877 19.95 1483.99 1014.711 4.35 4.37 13.395 2.50249 3.25891 20.08 1484.03 1014.822 4.65 4.67 13.309 2.52844 3.30009 20.36 1484.06 1015.050 4.95 4.97 13.189 2.54181 3.32791 20.54 1483.86 1015.212 5.25 5.28 13.109 2.54871 3.34396 20.64 1483.71 1015.308 5.55 5.58 13.018 2.57373 3.38488 20.92 1483.72 1015.535 5.85 5.88 12.888 2.58785 3.41512 21.11 1483.51 1015.711 6.15 6.18 12.763 2.59363 3.43408 21.24 1483.22 1015.828 6.45 6.48 12.639 2.60543 3.46104 21.41 1483.00 1015.986 6.75 6.78 12.485 2.62941 3.50729 21.72 1482.83 1016.249 7.05 7.08 12.391 2.66717 3.56662 22.11 1482.97 1016.574 7.35 7.38 12.336 2.67228 3.57867 22.19 1482.88 1016.645 7.65 7.68 12.283 2.67616 3.58896 22.26 1482.78 1016.707 7.95 7.99 12.241 2.68001 3.59824 22.32 1482.70 1016.762 8.25 8.29 12.206 2.68571 3.60923 22.39 1482.67 1016.825 8.55 8.59 12.178 2.69226 3.62075 22.47 1482.67 1016.890 8.85 8.89 12.154 2.69411 3.62565 22.50 1482.62 1016.920 9.15 9.19 12.140 2.69490 3.62808 22.52 1482.60 1016.936 9.45 9.49 12.134 2.69561 3.62957 22.53 1482.60 1016.946 9.75 9.79 12.130 2.69663 3.63131 22.54 1482.60 1016.957 10.05 10.09 12.127 2.69705 3.63223 22.55 1482.60 1016.963 10.35 10.39 12.122 2.69736 3.63307 22.55 1482.60 1016.970 10.65 10.69 12.118 2.69795 3.63431 22.56 1482.59 1016.978 10.95 10.99 12.113 2.69803 3.63492 22.56 1482.59 1016.983 11.25 11.29 12.108 2.69853 3.63602 22.57 1482.58 1016.991 11.55 11.59 12.099 2.69863 3.63703 22.57 1482.56 1016.998 11.85 11.89 12.087 2.69922 3.63905 22.59 1482.54 1017.012 12.15 12.20 12.068 2.70097 3.64329 22.62 1482.51 1017.038 12.45 12.49 12.009 2.70236 3.65095 22.66 1482.36 1017.086 12.75 12.80 11.926 2.70792 3.66670 22.77 1482.19 1017.180 13.05 13.10 11.868 2.71605 3.68351 22.88 1482.13 1017.276 13.35 13.40 11.807 2.72655 3.70383 23.01 1482.08 1017.392 13.65 13.70 11.764 2.73250 3.71626 23.09 1482.02 1017.463 13.95 14.00 11.736 2.73932 3.72838 23.17 1482.03 1017.532 14.25 14.30 11.690 2.75051 3.74833 23.31 1482.02 1017.644 14.55 14.60 11.624 2.75880 3.76636 23.43 1481.94 1017.748 14.85 14.90 11.586 2.75822 3.76953 23.44 1481.83 1017.770 15.15 15.20 11.561 2.75889 3.77296 23.46 1481.77 1017.792 15.45 15.50 11.545 2.75919 3.77505 23.48 1481.73 1017.806 15.75 15.80 11.534 2.75974 3.77691 23.49 1481.71 1017.818 16.05 16.10 11.531 2.76025 3.77796 23.50 1481.71 1017.825 16.35 16.40 11.528 2.76016 3.77810 23.50 1481.71 1017.828 16.65 16.70 11.525 2.76026 3.77863 23.50 1481.71 1017.832 16.95 17.00 11.521 2.76043 3.77919 23.50 1481.70 1017.837 17.25 17.30 11.518 2.76082 3.78011 23.51 1481.70 1017.843 17.55 17.60 11.514 2.76079 3.78049 23.51 1481.69 1017.847 17.85 17.91 11.506 2.76096 3.78156 23.52 1481.68 1017.855 18.15 18.20 11.492 2.76057 3.78239 23.52 1481.64 1017.862 18.45 18.50 11.459 2.76294 3.78909 23.57 1481.58 1017.902 18.75 18.81 11.424 2.76518 3.79577 23.61 1481.51 1017.942 19.05 19.11 11.403 2.76845 3.80245 23.65 1481.49 1017.981 19.35 19.41 11.383 2.77186 3.80925 23.70 1481.48 1018.021 19.65 19.71 11.359 2.77537 3.81657 23.75 1481.46 1018.063 19.95 20.01 11.331 2.77556 3.81985 23.77 1481.38 1018.085 20.25 20.31 11.292 2.77555 3.82394 23.79 1481.28 1018.112 20.55 20.61 11.264 2.77645 3.82815 23.82 1481.21 1018.138 20.85 20.91 11.250 2.77667 3.82989 23.83 1481.18 1018.150 21.15 21.21 11.238 2.77681 3.83139 23.84 1481.15 1018.161 21.45 21.51 11.220 2.77709 3.83366 23.85 1481.11 1018.176 21.75 21.81 11.197 2.77759 3.83677 23.87 1481.06 1018.196 22.05 22.11 11.166 2.77783 3.84037 23.89 1480.98 1018.219 22.35 22.41 11.133 2.77797 3.84405 23.92 1480.89 1018.243 22.65 22.71 11.102 2.77803 3.84752 23.94 1480.81 1018.266 22.95 23.01 11.068 2.77870 3.85198 23.96 1480.72 1018.294 23.25 23.31 11.055 2.77869 3.85339 23.97 1480.69 1018.304 23.55 23.61 11.053 2.77848 3.85333 23.97 1480.69 1018.305 23.85 23.91 11.036 2.77887 3.85568 23.99 1480.65 1018.321 24.15 24.21 10.999 2.77894 3.85971 24.01 1480.55 1018.347 24.45 24.51 10.980 2.77866 3.86136 24.02 1480.50 1018.359 24.75 24.81 10.960 2.77952 3.86474 24.04 1480.46 1018.380 25.05 25.11 10.937 2.77916 3.86672 24.05 1480.39 1018.394 25.35 25.41 10.926 2.77918 3.86791 24.06 1480.37 1018.403 25.65 25.71 10.919 2.77938 3.86900 24.07 1480.35 1018.410 25.95 26.01 10.909 2.77965 3.87039 24.08 1480.33 1018.420 26.25 26.31 10.882 2.78090 3.87503 24.11 1480.28 1018.448 26.55 26.61 10.840 2.78250 3.88188 24.15 1480.18 1018.490 26.85 26.91 10.824 2.78373 3.88528 24.17 1480.15 1018.511 27.15 27.21 10.806 2.78185 3.88464 24.17 1480.08 1018.510 27.45 27.52 10.778 2.78132 3.88688 24.18 1480.00 1018.526 27.75 27.82 10.755 2.78352 3.89245 24.21 1479.97 1018.559 28.05 28.12 10.749 2.78516 3.89543 24.23 1479.97 1018.577 28.35 28.42 10.736 2.78483 3.89634 24.24 1479.94 1018.584 28.65 28.72 10.720 2.78664 3.90067 24.27 1479.92 1018.610 28.95 29.02 10.713 2.78893 3.90464 24.29 1479.93 1018.633 29.25 29.32 10.699 2.79134 3.90960 24.33 1479.92 1018.662 29.55 29.62 10.668 2.79404 3.91676 24.37 1479.87 1018.704 29.85 29.92 10.638 2.79584 3.92258 24.41 1479.81 1018.739 30.15 30.22 10.603 2.79734 3.92855 24.45 1479.73 1018.775 30.45 30.52 10.575 2.79665 3.93063 24.46 1479.65 1018.790 30.75 30.82 10.556 2.79746 3.93390 24.48 1479.61 1018.810 31.05 31.12 10.543 2.79900 3.93749 24.50 1479.60 1018.831 31.35 31.42 10.534 2.79957 3.93932 24.52 1479.58 1018.843 31.65 31.72 10.520 2.80006 3.94154 24.53 1479.55 1018.858 31.95 32.02 10.511 2.80005 3.94255 24.54 1479.53 1018.865 32.25 32.32 10.506 2.80075 3.94402 24.55 1479.53 1018.875 32.55 32.62 10.500 2.80054 3.94444 24.55 1479.52 1018.879 32.85 32.92 10.496 2.79993 3.94400 24.54 1479.50 1018.878 33.15 33.22 10.493 2.79985 3.94428 24.55 1479.50 1018.881 33.45 33.52 10.491 2.79852 3.94257 24.53 1479.48 1018.873 33.75 33.82 10.492 2.79167 3.93279 24.47 1479.41 1018.822 34.05 34.12 10.495 2.79642 3.93924 24.51 1479.48 1018.858 34.35 34.42 10.501 2.79951 3.94281 24.54 1479.54 1018.878 34.65 34.72 10.511 2.80041 3.94302 24.54 1479.58 1018.879 34.95 35.02 10.515 2.80042 3.94257 24.54 1479.60 1018.878 35.25 35.32 10.512 2.80038 3.94287 24.54 1479.59 1018.881 35.55 35.62 10.515 2.79145 3.92996 24.45 1479.50 1018.813 35.85 35.92 10.519 2.79078 3.92854 24.44 1479.51 1018.807 36.15 36.22 10.524 2.80226 3.94421 24.55 1479.66 1018.891 36.45 36.52 10.537 2.80641 3.94858 24.58 1479.75 1018.914 36.75 36.82 10.553 2.80670 3.94719 24.57 1479.81 1018.907 37.05 37.12 10.559 2.80845 3.94900 24.58 1479.85 1018.917 37.35 37.42 10.564 2.80931 3.94967 24.59 1479.88 1018.922 37.65 37.72 10.571 2.81011 3.94998 24.59 1479.91 1018.924 37.95 38.02 10.576 2.81050 3.94999 24.59 1479.93 1018.925 38.25 38.32 10.578 2.81123 3.95077 24.59 1479.95 1018.930 38.55 38.62 10.582 2.81227 3.95182 24.60 1479.98 1018.937 38.85 38.92 10.587 2.81151 3.95020 24.59 1479.99 1018.929 39.15 39.22 10.588 2.81257 3.95156 24.60 1480.01 1018.937 39.45 39.52 10.587 2.81260 3.95177 24.60 1480.01 1018.940 39.75 39.82 10.590 2.81292 3.95188 24.60 1480.03 1018.942 40.05 40.12 10.595 2.81397 3.95275 24.61 1480.06 1018.947 40.35 40.42 10.597 2.81483 3.95378 24.62 1480.08 1018.954 40.65 40.72 10.597 2.81656 3.95619 24.63 1480.11 1018.968 40.95 41.02 10.598 2.81805 3.95818 24.65 1480.13 1018.980 41.25 41.32 10.602 2.81767 3.95718 24.64 1480.14 1018.975 41.55 41.62 10.608 2.81790 3.95679 24.64 1480.17 1018.974 41.85 41.92 10.614 2.81787 3.95617 24.63 1480.19 1018.971 42.15 42.22 10.615 2.81759 3.95562 24.63 1480.19 1018.970 42.45 42.52 10.615 2.81759 3.95561 24.63 1480.20 1018.971 42.75 42.82 10.611 2.81931 3.95851 24.65 1480.21 1018.988 43.05 43.12 10.595 2.81782 3.95820 24.65 1480.15 1018.989 43.35 43.42 10.595 2.82207 3.96418 24.69 1480.21 1019.022 43.58 43.66 10.590 2.82327 3.96634 24.70 1480.21 1019.035