*2019/08/26 15:30:38.30 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/23 15:27:05.000 END TIME : UTC 2017/06/23 15:27:18.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 69 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.48 2 Depth metres 0.15 20.54 3 Temperature 'deg C (ITS90)' 11.634 14.166 4 Conductivity S/m 2.17301 2.76675 5 Conductance:Specific S/m 2.77413 3.77525 6 Salinity PSS-78 16.87 23.48 7 Speed:Sound m/s 1482.13 1483.43 8 Density kg/m^3 1012.195 1017.817 $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 : 567 LATITUDE : 49 17.79793 N ! (deg min) LONGITUDE : 123 0.32268 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 01:17:35 69 69 HDREDIT2 3.1.1 2017/12/13 11:33:22 ? ? CALIB 12.0 2019/08/26 15:30:38 69 69 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:17:35 -HEADER EDITS: 2017/12/13 11:33:22 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 15:30:38 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_20170623_152705 % Cast time (UTC),2017-06-23 15:27:05 % Cast time (local),2017-06-23 15:27:05 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2966321 % Start longitude,-123.005378 % Start altitude,-13.680000305175781 % Start GPS horizontal error(Meter),1.7899999618530273 % Start GPS vertical error(Meter),2.8399999141693115 % Start GPS number of satellites,8 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),73.6 % 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 14.166 2.17301 2.77413 16.87 1482.84 1012.195 0.45 0.45 14.154 2.18549 2.79092 16.98 1482.93 1012.284 0.75 0.76 14.136 2.19317 2.80199 17.05 1482.96 1012.344 1.05 1.06 14.114 2.19914 2.81118 17.11 1482.96 1012.396 1.35 1.36 14.089 2.20688 2.82290 17.19 1482.97 1012.461 1.65 1.66 14.067 2.21793 2.83865 17.29 1483.02 1012.546 1.95 1.96 14.064 2.22557 2.84865 17.36 1483.09 1012.599 2.25 2.27 14.059 2.23362 2.85932 17.43 1483.16 1012.656 2.55 2.57 14.037 2.24357 2.87367 17.52 1483.20 1012.734 2.85 2.87 14.001 2.26131 2.89903 17.69 1483.29 1012.870 3.15 3.17 13.930 2.28097 2.92957 17.89 1483.28 1013.039 3.45 3.47 13.814 2.29683 2.95876 18.09 1483.11 1013.207 3.75 3.77 13.672 2.32368 3.00431 18.38 1482.98 1013.463 4.05 4.08 13.510 2.35564 3.05845 18.74 1482.84 1013.766 4.35 4.38 13.364 2.38541 3.10894 19.07 1482.73 1014.048 4.65 4.68 13.213 2.42317 3.17063 19.48 1482.69 1014.390 4.95 4.98 13.035 2.45721 3.23020 19.87 1482.54 1014.724 5.25 5.28 12.896 2.50842 3.30962 20.40 1482.68 1015.157 5.55 5.58 12.834 2.53912 3.35564 20.71 1482.84 1015.406 5.85 5.88 12.774 2.56293 3.39246 20.95 1482.92 1015.607 6.15 6.19 12.662 2.63991 3.50475 21.71 1483.43 1016.211 6.45 6.49 12.402 2.66715 3.56555 22.11 1482.99 1016.564 6.75 6.79 12.215 2.68132 3.60243 22.35 1482.63 1016.782 7.05 7.09 12.133 2.69746 3.63215 22.55 1482.57 1016.949 7.35 7.39 12.091 2.70500 3.64646 22.64 1482.54 1017.031 7.65 7.69 12.059 2.71066 3.65719 22.71 1482.52 1017.092 7.95 7.99 12.030 2.71012 3.65936 22.72 1482.44 1017.108 8.25 8.29 12.022 2.70825 3.65759 22.71 1482.40 1017.101 8.55 8.59 12.024 2.71052 3.66050 22.73 1482.43 1017.118 8.85 8.89 12.018 2.71189 3.66291 22.75 1482.44 1017.132 9.15 9.19 12.010 2.71188 3.66373 22.75 1482.42 1017.139 9.45 9.49 12.003 2.71187 3.66438 22.76 1482.40 1017.145 9.75 9.79 11.997 2.71366 3.66745 22.78 1482.41 1017.163 10.05 10.10 11.990 2.71338 3.66769 22.78 1482.39 1017.166 10.35 10.40 11.984 2.71426 3.66949 22.79 1482.39 1017.178 10.65 10.70 11.979 2.71503 3.67100 22.80 1482.39 1017.187 10.95 11.00 11.972 2.71791 3.67562 22.83 1482.41 1017.214 11.25 11.30 11.962 2.71755 3.67612 22.83 1482.38 1017.219 11.55 11.60 11.950 2.71945 3.67996 22.86 1482.37 1017.242 11.85 11.90 11.932 2.72089 3.68364 22.88 1482.34 1017.265 12.15 12.20 11.915 2.72260 3.68761 22.91 1482.32 1017.289 12.45 12.50 11.905 2.72520 3.69215 22.94 1482.32 1017.315 12.75 12.80 11.904 2.72666 3.69426 22.95 1482.34 1017.328 13.05 13.10 11.904 2.72722 3.69499 22.96 1482.35 1017.333 13.35 13.40 11.900 2.72933 3.69829 22.98 1482.37 1017.352 13.65 13.70 11.891 2.72907 3.69879 22.98 1482.35 1017.357 13.95 14.00 11.878 2.72821 3.69897 22.98 1482.30 1017.361 14.25 14.30 11.858 2.72785 3.70047 22.99 1482.25 1017.372 14.55 14.60 11.845 2.73128 3.70648 23.03 1482.25 1017.407 14.85 14.90 11.834 2.73271 3.70953 23.05 1482.24 1017.425 15.15 15.21 11.822 2.73712 3.71670 23.10 1482.26 1017.466 15.45 15.51 11.805 2.73971 3.72189 23.13 1482.25 1017.496 15.75 15.81 11.789 2.73883 3.72232 23.14 1482.20 1017.502 16.05 16.11 11.776 2.74041 3.72582 23.16 1482.18 1017.523 16.35 16.41 11.770 2.74433 3.73178 23.20 1482.21 1017.557 16.65 16.71 11.770 2.75257 3.74293 23.27 1482.31 1017.617 16.95 17.01 11.758 2.75307 3.74481 23.29 1482.29 1017.629 17.25 17.31 11.731 2.75332 3.74790 23.31 1482.22 1017.650 17.55 17.61 11.706 2.75487 3.75264 23.34 1482.17 1017.679 17.85 17.91 11.689 2.75646 3.75657 23.36 1482.14 1017.703 18.15 18.21 11.679 2.75735 3.75872 23.38 1482.13 1017.717 18.45 18.51 11.682 2.75874 3.76037 23.39 1482.16 1017.727 18.75 18.81 11.685 2.75852 3.75972 23.38 1482.17 1017.724 19.05 19.11 11.677 2.76557 3.77016 23.45 1482.23 1017.781 19.35 19.41 11.653 2.76548 3.77256 23.47 1482.17 1017.798 19.65 19.71 11.643 2.76675 3.77525 23.48 1482.16 1017.815 19.95 20.01 11.639 2.76641 3.77525 23.48 1482.15 1017.816 20.25 20.31 11.634 2.76521 3.77410 23.48 1482.13 1017.812 20.48 20.54 11.638 2.76619 3.77501 23.48 1482.15 1017.817