*2019/08/26 15:30:08.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/11 19:50:21.000 END TIME : UTC 2016/07/11 19:50:34.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 67 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.99 2 Depth metres 0.15 20.01 3 Temperature 'deg C (ITS90)' 10.221 17.918 4 Conductivity S/m 1.86054 3.24972 5 Conductance:Specific S/m 2.16757 4.61301 6 Salinity PSS-78 12.96 29.15 7 Speed:Sound m/s 1483.83 1491.81 8 Density kg/m^3 1008.491 1022.446 $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 : 223 LATITUDE : 49 18.94949 N ! (deg min) LONGITUDE : 123 8.37116 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 19:43:30 67 67 HDREDIT2 3.1.1 2017/12/13 11:31:12 ? ? CALIB 12.0 2019/08/26 15:30:08 67 67 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 19:43:29 -HEADER EDITS: 2017/12/13 11:31:12 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 15:30:08 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_20160711_195021 % Cast time (UTC),2016-07-11 19:50:21 % Cast time (local),2016-07-11 19:50:21 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3158249 % Start longitude,-123.1395193 % Start altitude,-14.710000038146973 % Start GPS horizontal error(Meter),1.6100000143051148 % Start GPS vertical error(Meter),1.9900000095367432 % Start GPS number of satellites,7 % End latitude,49.3159282 % End longitude,-123.1397826 % End altitude,-39.849998474121094 % End GPS horizontal error(Meter),22.790000915527344 % End GPS vertical error(Meter),22.739999771118164 % End GPS number of satellites,7 % Cast duration (Seconds),53.2 % 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 17.918 1.86054 2.16757 12.96 1490.62 1008.491 0.45 0.46 17.826 1.86279 2.17485 13.01 1490.39 1008.546 0.75 0.76 17.570 1.89529 2.22610 13.34 1489.96 1008.852 1.05 1.06 17.380 1.98479 2.34164 14.09 1490.23 1009.465 1.35 1.36 17.250 2.07199 2.45204 14.82 1490.64 1010.044 1.65 1.67 16.928 2.15824 2.57375 15.62 1490.53 1010.719 1.95 1.97 16.693 2.29334 2.75027 16.78 1491.12 1011.659 2.25 2.27 16.398 2.37687 2.87078 17.58 1491.09 1012.330 2.55 2.57 15.913 2.52683 3.08803 19.03 1491.19 1013.534 2.85 2.88 15.575 2.68578 3.30965 20.52 1491.81 1014.744 3.15 3.18 15.276 2.74176 3.40371 21.15 1491.57 1015.287 3.45 3.48 14.939 2.81852 3.52857 21.99 1491.43 1015.999 3.75 3.78 14.642 2.85120 3.59619 22.44 1490.98 1016.403 4.05 4.08 14.393 2.87027 3.64315 22.75 1490.52 1016.691 4.35 4.38 14.246 2.88195 3.67167 22.94 1490.25 1016.865 4.65 4.68 14.095 2.89053 3.69680 23.11 1489.95 1017.022 4.95 4.98 13.918 2.90196 3.72833 23.31 1489.60 1017.216 5.25 5.28 13.712 2.90939 3.75775 23.50 1489.13 1017.403 5.55 5.58 13.559 2.91732 3.78293 23.67 1488.81 1017.559 5.85 5.88 13.387 2.93751 3.82617 23.96 1488.57 1017.814 6.15 6.18 13.254 2.95244 3.85900 24.18 1488.38 1018.007 6.45 6.48 13.137 2.97133 3.89556 24.42 1488.27 1018.219 6.75 6.78 13.016 2.98631 3.92767 24.64 1488.11 1018.407 7.05 7.08 12.922 2.99451 3.94821 24.77 1487.95 1018.530 7.35 7.38 12.843 3.00380 3.96872 24.91 1487.85 1018.651 7.65 7.68 12.750 3.01003 3.98675 25.02 1487.67 1018.760 7.95 7.99 12.681 3.01477 4.00038 25.11 1487.54 1018.843 8.25 8.29 12.604 3.01914 4.01440 25.21 1487.39 1018.929 8.55 8.59 12.502 3.03139 4.04166 25.39 1487.26 1019.089 8.85 8.88 12.407 3.05346 4.08136 25.66 1487.25 1019.314 9.15 9.19 12.330 3.06207 4.10133 25.79 1487.14 1019.431 9.45 9.48 12.254 3.07241 4.12365 25.94 1487.06 1019.561 9.75 9.79 12.125 3.08834 4.15938 26.18 1486.90 1019.769 10.05 10.09 12.049 3.09595 4.17817 26.30 1486.79 1019.880 10.35 10.38 11.945 3.10499 4.20217 26.46 1486.62 1020.022 10.65 10.68 11.851 3.11258 4.22318 26.60 1486.45 1020.147 10.95 10.98 11.782 3.12990 4.25466 26.81 1486.47 1020.325 11.25 11.28 11.691 3.13816 4.27643 26.95 1486.33 1020.453 11.55 11.58 11.602 3.14919 4.30195 27.12 1486.22 1020.602 11.85 11.88 11.547 3.15427 4.31537 27.21 1486.14 1020.681 12.15 12.18 11.471 3.15885 4.33066 27.31 1485.99 1020.772 12.45 12.48 11.326 3.16639 4.35826 27.49 1485.70 1020.937 12.75 12.78 11.221 3.17005 4.37598 27.60 1485.47 1021.044 13.05 13.08 11.144 3.17146 4.38723 27.67 1485.28 1021.114 13.35 13.38 11.040 3.18274 4.41562 27.86 1485.14 1021.278 13.65 13.68 10.949 3.19595 4.44513 28.06 1485.06 1021.448 13.95 13.98 10.779 3.21202 4.48875 28.35 1484.80 1021.701 14.25 14.28 10.687 3.21903 4.51011 28.49 1484.64 1021.826 14.55 14.58 10.605 3.22572 4.52991 28.61 1484.51 1021.941 14.85 14.88 10.540 3.23041 4.54477 28.71 1484.39 1022.029 15.15 15.18 10.476 3.23363 4.55751 28.79 1484.27 1022.104 15.45 15.48 10.434 3.23529 4.56517 28.84 1484.18 1022.150 15.75 15.78 10.394 3.23751 4.57349 28.90 1484.11 1022.200 16.05 16.07 10.339 3.23960 4.58363 28.96 1483.99 1022.261 16.35 16.37 10.314 3.24192 4.59019 29.00 1483.95 1022.300 16.65 16.67 10.295 3.24346 4.59478 29.03 1483.93 1022.327 16.95 16.97 10.280 3.24448 4.59822 29.06 1483.90 1022.348 17.25 17.27 10.266 3.24482 4.60053 29.07 1483.88 1022.363 17.55 17.57 10.242 3.24624 4.60565 29.10 1483.83 1022.394 17.85 17.87 10.245 3.24627 4.60530 29.10 1483.85 1022.393 18.15 18.17 10.255 3.24668 4.60459 29.10 1483.88 1022.390 18.45 18.47 10.254 3.24666 4.60467 29.10 1483.88 1022.392 18.75 18.77 10.246 3.24677 4.60583 29.11 1483.87 1022.400 19.05 19.07 10.240 3.24680 4.60676 29.11 1483.86 1022.407 19.35 19.36 10.232 3.24683 4.60779 29.12 1483.84 1022.414 19.65 19.66 10.221 3.24740 4.61006 29.13 1483.83 1022.429 19.99 20.01 10.223 3.24972 4.61301 29.15 1483.87 1022.446