*2019/08/26 15:30:36.80 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/21 23:51:02.000 END TIME : UTC 2017/06/21 23:51:21.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 96 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.77 2 Depth metres 0.15 28.76 3 Temperature 'deg C (ITS90)' 10.006 13.105 4 Conductivity S/m 2.46582 3.12129 5 Conductance:Specific S/m 3.23646 4.45825 6 Salinity PSS-78 19.92 28.05 7 Speed:Sound m/s 1481.65 1482.76 8 Density kg/m^3 1014.726 1021.657 $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 : 535 LATITUDE : 49 18.17659 N ! (deg min) LONGITUDE : 123 4.99259 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 00:46:02 96 96 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 96 96 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:46:01 -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_235102 % Cast time (UTC),2017-06-21 23:51:02 % Cast time (local),2017-06-21 23:51:02 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3029431 % Start longitude,-123.0832098 % Start altitude,-20.3799991607666 % Start GPS horizontal error(Meter),2.2300000190734863 % Start GPS vertical error(Meter),3.3299999237060547 % 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),76.8 % 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 13.105 2.46653 3.23646 19.92 1482.76 1014.726 0.45 0.45 13.081 2.46582 3.23757 19.93 1482.69 1014.736 0.75 0.75 13.063 2.46811 3.24209 19.95 1482.67 1014.764 1.05 1.05 13.039 2.47186 3.24908 20.00 1482.64 1014.804 1.35 1.36 12.978 2.48050 3.26572 20.11 1482.56 1014.900 1.65 1.66 12.879 2.48866 3.28498 20.23 1482.37 1015.015 1.95 1.96 12.749 2.50597 3.31925 20.46 1482.19 1015.211 2.25 2.26 12.579 2.55015 3.39307 20.95 1482.17 1015.619 2.55 2.56 12.430 2.60921 3.48548 21.57 1482.38 1016.123 2.85 2.86 12.312 2.65878 3.56285 22.09 1482.59 1016.545 3.15 3.16 12.154 2.68987 3.61992 22.46 1482.49 1016.865 3.45 3.46 12.046 2.70034 3.64457 22.63 1482.30 1017.009 3.75 3.76 11.967 2.70679 3.66114 22.73 1482.15 1017.107 4.05 4.07 11.921 2.71398 3.67540 22.83 1482.11 1017.189 4.35 4.37 11.885 2.72172 3.68942 22.92 1482.10 1017.268 4.65 4.67 11.842 2.72557 3.69902 22.98 1482.02 1017.325 4.95 4.97 11.796 2.73221 3.71264 23.07 1481.97 1017.403 5.25 5.27 11.759 2.73815 3.72445 23.15 1481.94 1017.471 5.55 5.57 11.716 2.74856 3.74302 23.27 1481.94 1017.575 5.85 5.87 11.663 2.75357 3.75522 23.35 1481.85 1017.647 6.15 6.17 11.613 2.75929 3.76819 23.44 1481.78 1017.722 6.45 6.47 11.543 2.79474 3.82388 23.82 1481.98 1018.026 6.75 6.77 11.469 2.82540 3.87373 24.15 1482.12 1018.300 7.05 7.07 11.422 2.83170 3.88739 24.24 1482.07 1018.379 7.35 7.37 11.382 2.83666 3.89839 24.31 1482.02 1018.442 7.65 7.67 11.345 2.83926 3.90603 24.36 1481.94 1018.488 7.95 7.97 11.297 2.84402 3.91769 24.44 1481.87 1018.556 8.25 8.27 11.243 2.85539 3.93922 24.58 1481.85 1018.678 8.55 8.57 11.180 2.87970 3.97966 24.86 1481.96 1018.901 8.85 8.87 11.124 2.89306 4.00431 25.02 1481.96 1019.039 9.15 9.17 11.073 2.91140 4.03538 25.23 1482.03 1019.211 9.45 9.47 11.015 2.92869 4.06593 25.43 1482.07 1019.381 9.75 9.77 10.955 2.93869 4.08661 25.57 1482.03 1019.499 10.05 10.07 10.871 2.94752 4.10849 25.72 1481.90 1019.625 10.35 10.37 10.802 2.95501 4.12693 25.84 1481.80 1019.731 10.65 10.67 10.758 2.96388 4.14433 25.95 1481.79 1019.830 10.95 10.97 10.715 2.97262 4.16160 26.07 1481.78 1019.927 11.25 11.27 10.672 2.98220 4.18006 26.19 1481.77 1020.032 11.55 11.57 10.640 2.99206 4.19767 26.31 1481.80 1020.130 11.85 11.87 10.609 2.99657 4.20763 26.38 1481.78 1020.188 12.15 12.17 10.578 2.99992 4.21602 26.43 1481.73 1020.237 12.45 12.47 10.543 3.00627 4.22912 26.52 1481.72 1020.311 12.75 12.77 10.507 3.01385 4.24403 26.62 1481.71 1020.396 13.05 13.07 10.478 3.01977 4.25585 26.70 1481.71 1020.463 13.35 13.37 10.448 3.02585 4.26800 26.78 1481.70 1020.532 13.65 13.67 10.421 3.03267 4.28084 26.86 1481.71 1020.605 13.95 13.97 10.406 3.03697 4.28882 26.92 1481.73 1020.650 14.25 14.27 10.389 3.03984 4.29485 26.96 1481.72 1020.685 14.55 14.57 10.376 3.04164 4.29899 26.98 1481.71 1020.710 14.85 14.87 10.364 3.04260 4.30181 27.00 1481.69 1020.727 15.15 15.17 10.348 3.04294 4.30430 27.02 1481.66 1020.743 15.45 15.47 10.326 3.04704 4.31271 27.07 1481.65 1020.792 15.75 15.77 10.295 3.06046 4.33557 27.23 1481.73 1020.919 16.05 16.07 10.247 3.07850 4.36702 27.44 1481.82 1021.093 16.35 16.36 10.200 3.09609 4.39788 27.65 1481.90 1021.265 16.65 16.66 10.164 3.10242 4.41137 27.74 1481.88 1021.342 16.95 16.96 10.139 3.10425 4.41709 27.78 1481.84 1021.376 17.25 17.26 10.118 3.10632 4.42268 27.82 1481.82 1021.409 17.55 17.56 10.097 3.10708 4.42642 27.84 1481.77 1021.432 17.85 17.86 10.085 3.10858 4.43012 27.86 1481.76 1021.454 18.15 18.16 10.075 3.10976 4.43301 27.88 1481.76 1021.472 18.45 18.46 10.069 3.11053 4.43485 27.89 1481.75 1021.483 18.75 18.76 10.066 3.11044 4.43519 27.89 1481.75 1021.487 19.05 19.06 10.061 3.11124 4.43686 27.91 1481.75 1021.497 19.35 19.36 10.055 3.11160 4.43823 27.91 1481.74 1021.507 19.65 19.66 10.049 3.11280 4.44065 27.93 1481.74 1021.521 19.95 19.96 10.043 3.11385 4.44290 27.95 1481.74 1021.535 20.25 20.26 10.040 3.11460 4.44440 27.96 1481.75 1021.545 20.55 20.56 10.036 3.11516 4.44562 27.96 1481.75 1021.553 20.85 20.86 10.033 3.11529 4.44616 27.97 1481.75 1021.558 21.15 21.16 10.032 3.11512 4.44616 27.97 1481.75 1021.559 21.45 21.45 10.030 3.11540 4.44672 27.97 1481.75 1021.563 21.75 21.75 10.029 3.11551 4.44708 27.97 1481.76 1021.567 22.05 22.05 10.026 3.11549 4.44741 27.98 1481.75 1021.570 22.35 22.35 10.024 3.11574 4.44795 27.98 1481.76 1021.574 22.65 22.65 10.023 3.11597 4.44850 27.98 1481.76 1021.579 22.95 22.95 10.021 3.11602 4.44873 27.98 1481.76 1021.581 23.25 23.25 10.021 3.11613 4.44891 27.98 1481.77 1021.583 23.55 23.55 10.020 3.11620 4.44912 27.99 1481.77 1021.586 23.85 23.85 10.020 3.11599 4.44892 27.98 1481.77 1021.586 24.15 24.15 10.018 3.11630 4.44955 27.99 1481.77 1021.591 24.45 24.45 10.017 3.11679 4.45042 27.99 1481.78 1021.597 24.75 24.75 10.015 3.11673 4.45056 28.00 1481.78 1021.599 25.05 25.05 10.013 3.11697 4.45116 28.00 1481.78 1021.604 25.35 25.34 10.012 3.11758 4.45222 28.00 1481.79 1021.611 25.65 25.64 10.011 3.11737 4.45195 28.00 1481.79 1021.611 25.95 25.94 10.012 3.11726 4.45169 28.00 1481.80 1021.611 26.25 26.24 10.012 3.11802 4.45281 28.01 1481.81 1021.618 26.55 26.54 10.011 3.11822 4.45325 28.01 1481.82 1021.622 26.85 26.84 10.010 3.11809 4.45311 28.01 1481.82 1021.622 27.15 27.14 10.009 3.11878 4.45423 28.02 1481.83 1021.630 27.45 27.44 10.008 3.11962 4.45556 28.03 1481.84 1021.638 27.75 27.74 10.009 3.11900 4.45461 28.02 1481.84 1021.634 28.05 28.04 10.007 3.11983 4.45608 28.03 1481.85 1021.644 28.35 28.34 10.006 3.12129 4.45825 28.05 1481.87 1021.657 28.77 28.76 10.006 3.11928 4.45531 28.02 1481.85 1021.643