*2019/08/26 15:30:36.49 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/21 16:52:17.000 END TIME : UTC 2017/06/21 16:52:35.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 91 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.21 2 Depth metres 0.15 27.22 3 Temperature 'deg C (ITS90)' 9.975 12.782 4 Conductivity S/m 2.31698 3.11863 5 Conductance:Specific S/m 3.06628 4.45801 6 Salinity PSS-78 18.76 28.04 7 Speed:Sound m/s 1480.15 1481.87 8 Density kg/m^3 1013.887 1021.65 $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 : 528 LATITUDE : 49 18.15767 N ! (deg min) LONGITUDE : 123 5.04610 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 00:39:20 91 91 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 91 91 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:39:19 -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_165217 % Cast time (UTC),2017-06-21 16:52:17 % Cast time (local),2017-06-21 16:52:17 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3026278 % Start longitude,-123.0841016 % Start altitude,-16.360000610351562 % Start GPS horizontal error(Meter),2.2300000190734863 % Start GPS vertical error(Meter),2.8399999141693115 % Start GPS number of satellites,7 % End latitude,49.3026137 % End longitude,-123.0844427 % End altitude,9.9300003051757812 % End GPS horizontal error(Meter),18.700000762939453 % End GPS vertical error(Meter),21.059999465942383 % End GPS number of satellites,5 % Cast duration (Seconds),97.2 % 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 12.782 2.31698 3.06628 18.76 1480.27 1013.887 0.45 0.45 12.690 2.33143 3.09293 18.93 1480.15 1014.038 0.75 0.75 12.598 2.36913 3.15059 19.32 1480.29 1014.349 1.05 1.05 12.550 2.41628 3.21739 19.76 1480.65 1014.702 1.35 1.36 12.527 2.44031 3.25143 19.99 1480.84 1014.883 1.65 1.66 12.494 2.47187 3.29631 20.29 1481.09 1015.122 1.95 1.96 12.418 2.50361 3.34545 20.62 1481.21 1015.389 2.25 2.26 12.296 2.52966 3.39133 20.92 1481.14 1015.645 2.55 2.56 12.176 2.56252 3.44643 21.29 1481.16 1015.948 2.85 2.86 12.080 2.59682 3.50166 21.66 1481.26 1016.251 3.15 3.16 11.967 2.61830 3.54136 21.92 1481.18 1016.473 3.45 3.46 11.857 2.65256 3.59845 22.30 1481.24 1016.787 3.75 3.77 11.792 2.68958 3.65513 22.68 1481.47 1017.094 4.05 4.07 11.725 2.70780 3.68658 22.89 1481.49 1017.269 4.35 4.37 11.644 2.72166 3.71362 23.07 1481.42 1017.422 4.65 4.67 11.594 2.72662 3.72552 23.15 1481.33 1017.492 4.95 4.97 11.571 2.72915 3.73134 23.18 1481.30 1017.526 5.25 5.27 11.558 2.73051 3.73449 23.20 1481.29 1017.545 5.55 5.57 11.550 2.73169 3.73687 23.22 1481.28 1017.560 5.85 5.87 11.544 2.73240 3.73850 23.23 1481.28 1017.571 6.15 6.17 11.535 2.73246 3.73949 23.24 1481.26 1017.578 6.45 6.47 11.526 2.73345 3.74183 23.25 1481.25 1017.593 6.75 6.77 11.514 2.73550 3.74587 23.28 1481.24 1017.617 7.05 7.07 11.501 2.73858 3.75133 23.32 1481.24 1017.648 7.35 7.37 11.492 2.74397 3.75969 23.37 1481.28 1017.695 7.65 7.67 11.479 2.74644 3.76443 23.40 1481.28 1017.723 7.95 7.97 11.462 2.75107 3.77256 23.46 1481.29 1017.769 8.25 8.27 11.445 2.75493 3.77957 23.50 1481.29 1017.809 8.55 8.57 11.433 2.75627 3.78270 23.52 1481.27 1017.828 8.85 8.87 11.417 2.75989 3.78928 23.57 1481.27 1017.866 9.15 9.17 11.399 2.76724 3.80129 23.65 1481.31 1017.933 9.45 9.47 11.380 2.77243 3.81040 23.71 1481.32 1017.984 9.75 9.78 11.366 2.77471 3.81498 23.74 1481.31 1018.011 10.05 10.07 11.351 2.77769 3.82070 23.78 1481.31 1018.044 10.35 10.38 11.331 2.78353 3.83076 23.84 1481.32 1018.101 10.65 10.68 11.310 2.78894 3.84041 23.91 1481.33 1018.156 10.95 10.98 11.289 2.79742 3.85437 24.00 1481.37 1018.233 11.25 11.28 11.265 2.80542 3.86791 24.09 1481.40 1018.309 11.55 11.58 11.245 2.81003 3.87648 24.15 1481.40 1018.358 11.85 11.88 11.213 2.82023 3.89398 24.27 1481.43 1018.455 12.15 12.18 11.184 2.83009 3.91067 24.38 1481.46 1018.548 12.45 12.48 11.167 2.83336 3.91702 24.42 1481.46 1018.585 12.75 12.78 11.149 2.83830 3.92582 24.48 1481.47 1018.635 13.05 13.08 11.134 2.84065 3.93076 24.51 1481.46 1018.664 13.35 13.38 11.113 2.84271 3.93582 24.55 1481.43 1018.694 13.65 13.68 11.096 2.84741 3.94423 24.60 1481.44 1018.742 13.95 13.98 11.079 2.85240 3.95300 24.66 1481.45 1018.792 14.25 14.28 11.061 2.85478 3.95831 24.70 1481.43 1018.823 14.55 14.58 11.038 2.85631 3.96291 24.73 1481.39 1018.851 14.85 14.88 11.013 2.85912 3.96953 24.77 1481.36 1018.890 15.15 15.18 10.981 2.86561 3.98212 24.85 1481.35 1018.961 15.45 15.48 10.941 2.89234 4.02372 25.14 1481.55 1019.188 15.75 15.78 10.884 2.91776 4.06550 25.42 1481.69 1019.418 16.05 16.08 10.822 2.92597 4.08405 25.54 1481.61 1019.524 16.35 16.38 10.775 2.93079 4.09619 25.62 1481.54 1019.595 16.65 16.68 10.731 2.93448 4.10636 25.69 1481.47 1019.654 16.95 16.98 10.674 2.94285 4.12466 25.81 1481.41 1019.759 17.25 17.28 10.609 2.95726 4.15236 25.99 1481.40 1019.914 17.55 17.58 10.554 2.97739 4.18710 26.23 1481.49 1020.106 17.85 17.88 10.502 2.99855 4.22308 26.47 1481.60 1020.305 18.15 18.18 10.446 3.01664 4.25523 26.69 1481.66 1020.484 18.45 18.48 10.370 3.04300 4.30166 27.00 1481.77 1020.742 18.75 18.78 10.293 3.06819 4.34669 27.30 1481.87 1020.992 19.05 19.08 10.241 3.07957 4.36927 27.46 1481.86 1021.119 19.35 19.38 10.187 3.08507 4.38387 27.55 1481.78 1021.203 19.65 19.68 10.125 3.09366 4.40379 27.68 1481.72 1021.317 19.95 19.98 10.086 3.10021 4.41805 27.78 1481.70 1021.398 20.25 20.27 10.065 3.10429 4.42650 27.83 1481.69 1021.446 20.55 20.57 10.049 3.10523 4.42988 27.86 1481.67 1021.467 20.85 20.87 10.030 3.10557 4.43270 27.87 1481.62 1021.485 21.15 21.17 10.020 3.10704 4.43609 27.90 1481.62 1021.505 21.45 21.47 10.013 3.10798 4.43833 27.91 1481.62 1021.519 21.75 21.77 10.008 3.10873 4.44008 27.92 1481.62 1021.530 22.05 22.07 10.002 3.10938 4.44165 27.93 1481.61 1021.540 22.35 22.37 9.995 3.11044 4.44417 27.95 1481.61 1021.556 22.65 22.67 9.990 3.11343 4.44899 27.98 1481.64 1021.584 22.95 22.97 9.986 3.11482 4.45147 28.00 1481.65 1021.599 23.25 23.27 9.985 3.11596 4.45329 28.01 1481.66 1021.610 23.55 23.57 9.983 3.11541 4.45268 28.01 1481.66 1021.608 23.85 23.87 9.982 3.11580 4.45349 28.01 1481.66 1021.614 24.15 24.17 9.980 3.11579 4.45368 28.01 1481.66 1021.616 24.45 24.47 9.980 3.11676 4.45504 28.02 1481.68 1021.625 24.75 24.77 9.985 3.11714 4.45499 28.02 1481.70 1021.625 25.05 25.07 9.991 3.11719 4.45423 28.02 1481.73 1021.622 25.35 25.36 9.991 3.11680 4.45374 28.01 1481.72 1021.621 25.65 25.66 9.986 3.11760 4.45546 28.02 1481.73 1021.632 25.95 25.96 9.982 3.11741 4.45568 28.03 1481.72 1021.634 26.25 26.26 9.979 3.11782 4.45665 28.03 1481.72 1021.641 26.55 26.56 9.978 3.11863 4.45801 28.04 1481.73 1021.650 26.85 26.86 9.978 3.11781 4.45681 28.03 1481.73 1021.645 27.21 27.22 9.975 3.11791 4.45728 28.04 1481.73 1021.649