*2019/08/26 15:30:10.01 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 16:41:35.000 END TIME : UTC 2016/07/18 16:41:47.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 64 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.14 2 Depth metres 0.15 19.1 3 Temperature 'deg C (ITS90)' 11.607 16.665 4 Conductivity S/m 3.3608 3.50788 5 Conductance:Specific S/m 4.20583 4.59346 6 Salinity PSS-78 26.78 29.16 7 Speed:Sound m/s 1488.8 1502.44 8 Density kg/m^3 1019.316 1022.216 $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 : 2016-98 AGENCY : Canadian Hydrographic Service COUNTRY : Canada PROJECT : CHS CTD Data Acquisition SCIENTIST : Dangerfield N. *LOCATION EVENT NUMBER : 377 LATITUDE : 48 46.11208 N ! (deg min) LONGITUDE : 123 33.71237 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 2017/12/08 22:09:40 64 64 HDREDIT2 3.1.1 2017/12/13 11:31:13 ? ? CALIB 12.0 2019/08/26 15:30:10 64 64 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:09:39 -HEADER EDITS: 2017/12/13 11:31:13 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 15:30:09 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_20160718_164135 % Cast time (UTC),2016-07-18 16:41:35 % Cast time (local),2016-07-18 16:41:35 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7685347 % Start longitude,-123.5618728 % Start altitude,-14.229999542236328 % Start GPS horizontal error(Meter),2.0299999713897705 % Start GPS vertical error(Meter),3.380000114440918 % Start GPS number of satellites,7 % End latitude,48.768547 % End longitude,-123.5620956 % End altitude,-30.350000381469727 % End GPS horizontal error(Meter),6.2300000190734863 % End GPS vertical error(Meter),10.100000381469727 % End GPS number of satellites,7 % Cast duration (Seconds),54 % 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 16.665 3.50788 4.20962 26.81 1502.44 1019.316 0.45 0.45 16.580 3.50227 4.21153 26.82 1502.19 1019.344 0.75 0.75 16.528 3.49562 4.20879 26.80 1502.01 1019.340 1.05 1.05 16.520 3.49249 4.20583 26.78 1501.96 1019.326 1.35 1.35 16.518 3.49761 4.21221 26.82 1502.01 1019.363 1.65 1.65 16.523 3.49768 4.21174 26.82 1502.03 1019.360 1.95 1.95 16.533 3.49715 4.21011 26.81 1502.06 1019.351 2.25 2.25 16.535 3.49580 4.20821 26.79 1502.05 1019.341 2.55 2.55 16.510 3.49581 4.21079 26.81 1502.00 1019.361 2.85 2.85 16.443 3.49329 4.21459 26.84 1501.82 1019.395 3.15 3.15 16.257 3.48997 4.22957 26.93 1501.35 1019.511 3.45 3.45 15.921 3.48104 4.25332 27.08 1500.48 1019.700 3.75 3.75 15.564 3.46228 4.26770 27.16 1499.44 1019.841 4.05 4.05 15.275 3.45209 4.28567 27.27 1498.65 1019.988 4.35 4.35 15.165 3.44794 4.29219 27.31 1498.35 1020.042 4.65 4.65 15.037 3.44454 4.30167 27.37 1498.01 1020.115 4.95 4.95 14.803 3.43927 4.32032 27.49 1497.39 1020.255 5.25 5.25 14.583 3.43444 4.33830 27.60 1496.81 1020.388 5.55 5.55 14.391 3.42918 4.35271 27.69 1496.29 1020.497 5.85 5.85 14.214 3.42326 4.36479 27.77 1495.80 1020.590 6.15 6.15 14.034 3.41908 4.37962 27.86 1495.32 1020.698 6.45 6.45 13.890 3.41565 4.39142 27.93 1494.93 1020.784 6.75 6.75 13.698 3.41215 4.40870 28.04 1494.42 1020.906 7.05 7.05 13.409 3.40290 4.42987 28.17 1493.61 1021.062 7.35 7.35 13.152 3.39544 4.44993 28.29 1492.89 1021.206 7.65 7.65 13.022 3.39246 4.46117 28.36 1492.54 1021.285 7.95 7.95 12.948 3.39118 4.46815 28.40 1492.34 1021.333 8.25 8.24 12.878 3.39003 4.47494 28.44 1492.16 1021.380 8.55 8.54 12.763 3.38888 4.48704 28.52 1491.86 1021.462 8.85 8.84 12.642 3.38711 4.49913 28.59 1491.54 1021.544 9.15 9.14 12.536 3.38429 4.50805 28.65 1491.25 1021.606 9.45 9.44 12.463 3.38211 4.51389 28.68 1491.04 1021.648 9.75 9.74 12.395 3.37973 4.51901 28.71 1490.85 1021.685 10.05 10.04 12.279 3.37669 4.52896 28.77 1490.52 1021.754 10.35 10.34 12.190 3.37367 4.53575 28.81 1490.27 1021.802 10.65 10.64 12.118 3.37164 4.54183 28.85 1490.07 1021.844 10.95 10.94 12.046 3.37077 4.54946 28.90 1489.88 1021.895 11.25 11.24 11.977 3.36946 4.55618 28.94 1489.69 1021.940 11.55 11.54 11.946 3.36878 4.55905 28.95 1489.61 1021.961 11.85 11.84 11.925 3.36886 4.56182 28.97 1489.56 1021.979 12.15 12.14 11.899 3.36792 4.56375 28.98 1489.49 1021.994 12.45 12.44 11.855 3.36727 4.56832 29.01 1489.38 1022.025 12.75 12.73 11.832 3.36644 4.57006 29.02 1489.31 1022.038 13.05 13.03 11.802 3.36571 4.57270 29.04 1489.23 1022.057 13.35 13.33 11.782 3.36484 4.57400 29.04 1489.18 1022.067 13.65 13.63 11.772 3.36586 4.57671 29.06 1489.17 1022.084 13.95 13.93 11.759 3.36516 4.57730 29.06 1489.13 1022.090 14.25 14.23 11.747 3.36493 4.57847 29.07 1489.10 1022.099 14.55 14.53 11.727 3.36568 4.58200 29.09 1489.06 1022.121 14.85 14.83 11.719 3.36497 4.58201 29.09 1489.04 1022.124 15.15 15.13 11.707 3.36485 4.58345 29.10 1489.01 1022.134 15.45 15.43 11.698 3.36577 4.58576 29.12 1489.01 1022.149 15.75 15.73 11.685 3.36524 4.58663 29.12 1488.97 1022.156 16.05 16.02 11.678 3.36467 4.58673 29.12 1488.95 1022.159 16.35 16.32 11.674 3.36494 4.58760 29.13 1488.95 1022.165 16.65 16.62 11.669 3.36391 4.58691 29.12 1488.93 1022.163 16.95 16.92 11.665 3.36312 4.58624 29.12 1488.91 1022.161 17.25 17.22 11.670 3.36309 4.58566 29.11 1488.93 1022.159 17.55 17.52 11.664 3.36185 4.58469 29.11 1488.91 1022.155 17.85 17.82 11.657 3.36080 4.58411 29.10 1488.88 1022.154 18.15 18.12 11.643 3.36109 4.58621 29.11 1488.85 1022.168 18.45 18.42 11.636 3.36126 4.58735 29.12 1488.84 1022.176 18.75 18.72 11.617 3.36255 4.59145 29.15 1488.81 1022.202 19.14 19.10 11.607 3.36303 4.59346 29.16 1488.80 1022.216