*2019/08/26 15:30:11.46 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/18 17:44:26.000 END TIME : UTC 2016/10/18 17:44:36.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 53 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 15.75 2 Depth metres 0.15 15.74 3 Temperature 'deg C (ITS90)' 10.297 10.864 4 Conductivity S/m 1.4426 3.32592 5 Conductance:Specific S/m 2.01757 4.71127 6 Salinity PSS-78 11.82 29.85 7 Speed:Sound m/s 1464.62 1484.92 8 Density kg/m^3 1008.826 1022.955 $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 : 400 LATITUDE : 49 6.21620 N ! (deg min) LONGITUDE : 123 18.07374 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 22:33:08 53 53 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:11 53 53 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:33:07 -HEADER EDITS: 2017/12/13 11:31:14 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 15:30:11 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_20161018_174426 % Cast time (UTC),2016-10-18 17:44:26 % Cast time (local),2016-10-18 17:44:26 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1036033 % Start longitude,-123.301229 % Start altitude,-14.850000381469727 % Start GPS horizontal error(Meter),5.2600002288818359 % Start GPS vertical error(Meter),6.2300000190734863 % Start GPS number of satellites,5 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),119.2 % 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 10.751 1.44260 2.01757 11.82 1464.62 1008.826 0.45 0.46 10.764 1.45025 2.02756 11.89 1464.75 1008.875 0.75 0.76 10.775 1.45775 2.03738 11.95 1464.87 1008.924 1.05 1.06 10.816 1.50768 2.10477 12.38 1465.55 1009.254 1.35 1.36 10.854 1.79842 2.50799 14.98 1468.82 1011.264 1.65 1.67 10.852 2.08459 2.90719 17.60 1471.95 1013.293 1.95 1.97 10.841 2.26714 3.16278 19.29 1473.95 1014.612 2.25 2.27 10.855 2.32143 3.23724 19.79 1474.61 1014.997 2.55 2.57 10.864 2.36703 3.30005 20.21 1475.15 1015.324 2.85 2.87 10.853 2.44448 3.40900 20.95 1475.99 1015.894 3.15 3.17 10.823 2.50313 3.49377 21.52 1476.57 1016.342 3.45 3.47 10.779 2.62736 3.67166 22.72 1477.86 1017.283 3.75 3.77 10.732 2.73519 3.82737 23.77 1478.96 1018.112 4.05 4.07 10.694 2.88858 4.04630 25.27 1480.63 1019.282 4.35 4.37 10.657 3.01223 4.22391 26.50 1481.97 1020.239 4.65 4.67 10.613 3.05528 4.28951 26.95 1482.36 1020.597 4.95 4.97 10.489 3.20312 4.51290 28.49 1483.78 1021.817 5.25 5.27 10.472 3.25068 4.58201 28.97 1484.30 1022.196 5.55 5.57 10.451 3.26489 4.60475 29.13 1484.42 1022.322 5.85 5.87 10.437 3.28437 4.63411 29.33 1484.62 1022.485 6.15 6.17 10.399 3.29373 4.65222 29.45 1484.64 1022.588 6.45 6.47 10.387 3.30281 4.66665 29.55 1484.72 1022.669 6.75 6.77 10.381 3.31715 4.68779 29.70 1484.88 1022.786 7.05 7.07 10.364 3.31812 4.69138 29.72 1484.85 1022.808 7.35 7.37 10.351 3.32062 4.69664 29.76 1484.85 1022.839 7.65 7.66 10.336 3.32179 4.70024 29.78 1484.83 1022.861 7.95 7.96 10.327 3.32253 4.70248 29.80 1484.82 1022.875 8.25 8.26 10.322 3.32297 4.70379 29.80 1484.82 1022.884 8.55 8.56 10.314 3.32350 4.70569 29.82 1484.81 1022.897 8.85 8.86 10.308 3.32465 4.70800 29.83 1484.81 1022.911 9.15 9.16 10.308 3.32445 4.70785 29.83 1484.81 1022.911 9.45 9.46 10.306 3.32410 4.70755 29.83 1484.81 1022.911 9.75 9.76 10.306 3.32429 4.70782 29.83 1484.82 1022.914 10.05 10.06 10.304 3.32449 4.70832 29.83 1484.82 1022.918 10.35 10.36 10.303 3.32432 4.70827 29.83 1484.82 1022.919 10.65 10.65 10.303 3.32424 4.70817 29.83 1484.82 1022.920 10.95 10.95 10.302 3.32470 4.70892 29.84 1484.83 1022.925 11.25 11.25 10.303 3.32468 4.70877 29.84 1484.84 1022.926 11.55 11.55 10.303 3.32433 4.70822 29.83 1484.84 1022.924 11.85 11.85 10.302 3.32465 4.70891 29.84 1484.84 1022.929 12.15 12.15 10.302 3.32456 4.70881 29.84 1484.85 1022.930 12.45 12.45 10.302 3.32490 4.70926 29.84 1484.86 1022.933 12.75 12.75 10.300 3.32516 4.70980 29.84 1484.86 1022.938 13.05 13.04 10.301 3.32555 4.71032 29.85 1484.87 1022.942 13.35 13.34 10.299 3.32550 4.71042 29.85 1484.87 1022.944 13.65 13.64 10.301 3.32447 4.70872 29.83 1484.87 1022.936 13.95 13.94 10.302 3.32490 4.70922 29.84 1484.88 1022.940 14.25 14.24 10.301 3.32532 4.70993 29.84 1484.89 1022.945 14.55 14.54 10.300 3.32580 4.71076 29.85 1484.90 1022.951 14.85 14.84 10.297 3.32592 4.71127 29.85 1484.89 1022.955 15.15 15.14 10.300 3.32578 4.71071 29.85 1484.91 1022.953 15.45 15.44 10.301 3.32491 4.70930 29.84 1484.90 1022.946 15.75 15.74 10.302 3.32546 4.70999 29.84 1484.92 1022.951