*2019/08/26 15:30:10.34 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 22:07:26.000 END TIME : UTC 2016/07/18 22:07:39.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 68 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 20.37 2 Depth metres 0.15 20.31 3 Temperature 'deg C (ITS90)' 11.555 12.827 4 Conductivity S/m 3.39031 3.43846 5 Conductance:Specific S/m 4.52279 4.64017 6 Salinity PSS-78 28.75 29.48 7 Speed:Sound m/s 1488.99 1492.43 8 Density kg/m^3 1021.661 1022.48 $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 : 383 LATITUDE : 48 46.11159 N ! (deg min) LONGITUDE : 123 33.71536 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 22:15:39 68 68 HDREDIT2 3.1.1 2017/12/13 11:31:13 ? ? CALIB 12.0 2019/08/26 15:30:10 68 68 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:15:38 -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 15:30:10 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_220726 % Cast time (UTC),2016-07-18 22:07:26 % Cast time (local),2016-07-18 22:07:26 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7685265 % Start longitude,-123.5619227 % Start altitude,-17.819999694824219 % Start GPS horizontal error(Meter),4.3400001525878906 % Start GPS vertical error(Meter),6.4000000953674316 % Start GPS number of satellites,5 % End latitude,48.7687031 % End longitude,-123.5614541 % End altitude,-19.819999694824219 % End GPS horizontal error(Meter),5.9499998092651367 % End GPS vertical error(Meter),8.9700002670288086 % End GPS number of satellites,5 % Cast duration (Seconds),106.8 % 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 12.827 3.43846 4.54500 28.94 1492.43 1021.734 0.45 0.45 12.763 3.43348 4.54610 28.94 1492.22 1021.749 0.75 0.75 12.695 3.42817 4.54728 28.94 1492.00 1021.765 1.05 1.05 12.510 3.41886 4.55731 29.00 1491.43 1021.843 1.35 1.35 12.382 3.40746 4.55763 28.99 1490.99 1021.861 1.65 1.65 12.434 3.39766 4.53825 28.86 1491.02 1021.751 1.95 1.95 12.505 3.39476 4.52580 28.77 1491.17 1021.676 2.25 2.25 12.499 3.39198 4.52279 28.75 1491.13 1021.661 2.55 2.54 12.426 3.40122 4.54391 28.89 1491.05 1021.786 2.85 2.84 12.388 3.40105 4.54832 28.92 1490.96 1021.816 3.15 3.14 12.367 3.40088 4.55065 28.94 1490.91 1021.832 3.45 3.44 12.350 3.40020 4.55183 28.94 1490.86 1021.842 3.75 3.74 12.337 3.40340 4.55772 28.98 1490.87 1021.877 4.05 4.04 12.323 3.40443 4.56075 29.00 1490.85 1021.896 4.35 4.34 12.312 3.40911 4.56845 29.06 1490.88 1021.941 4.65 4.64 12.355 3.41156 4.56635 29.05 1491.02 1021.926 4.95 4.94 12.381 3.41233 4.56421 29.03 1491.10 1021.912 5.25 5.24 12.391 3.41178 4.56234 29.02 1491.12 1021.902 5.55 5.54 12.390 3.41238 4.56319 29.02 1491.13 1021.908 5.85 5.84 12.391 3.41399 4.56522 29.04 1491.16 1021.921 6.15 6.13 12.418 3.41397 4.56199 29.02 1491.23 1021.901 6.45 6.43 12.429 3.41398 4.56058 29.01 1491.27 1021.893 6.75 6.73 12.436 3.41401 4.55985 29.00 1491.29 1021.890 7.05 7.03 12.435 3.41598 4.56250 29.02 1491.31 1021.906 7.35 7.33 12.430 3.41456 4.56122 29.01 1491.29 1021.901 7.65 7.63 12.422 3.41237 4.55932 29.00 1491.25 1021.893 7.95 7.93 12.431 3.41072 4.55605 28.98 1491.26 1021.875 8.25 8.23 12.428 3.41026 4.55574 28.98 1491.25 1021.875 8.55 8.53 12.427 3.40881 4.55391 28.96 1491.24 1021.866 8.85 8.83 12.429 3.40798 4.55265 28.95 1491.23 1021.860 9.15 9.13 12.363 3.40735 4.55977 29.00 1491.07 1021.908 9.45 9.43 12.294 3.40533 4.56553 29.03 1490.88 1021.949 9.75 9.73 12.254 3.40587 4.57119 29.07 1490.78 1021.985 10.05 10.03 12.186 3.40642 4.58022 29.12 1490.62 1022.043 10.35 10.32 12.045 3.40373 4.59409 29.21 1490.24 1022.136 10.65 10.62 11.984 3.39439 4.58900 29.17 1489.98 1022.116 10.95 10.92 11.975 3.39407 4.58969 29.17 1489.96 1022.122 11.25 11.22 11.970 3.39433 4.59064 29.18 1489.96 1022.129 11.55 11.52 11.961 3.39454 4.59201 29.19 1489.94 1022.139 11.85 11.82 11.956 3.39425 4.59229 29.19 1489.93 1022.142 12.15 12.12 11.952 3.39398 4.59245 29.19 1489.92 1022.145 12.45 12.42 11.945 3.39362 4.59284 29.19 1489.90 1022.149 12.75 12.72 11.934 3.39404 4.59469 29.20 1489.89 1022.161 13.05 13.02 11.928 3.39435 4.59589 29.21 1489.88 1022.170 13.35 13.32 11.938 3.39574 4.59658 29.22 1489.92 1022.174 13.65 13.62 11.957 3.39597 4.59450 29.20 1489.98 1022.162 13.95 13.92 11.969 3.39534 4.59217 29.19 1490.01 1022.149 14.25 14.21 11.998 3.39475 4.58773 29.16 1490.08 1022.123 14.55 14.51 12.001 3.39452 4.58711 29.16 1490.09 1022.120 14.85 14.81 11.993 3.39392 4.58729 29.16 1490.07 1022.124 15.15 15.11 11.974 3.39398 4.58973 29.17 1490.03 1022.140 15.45 15.41 11.962 3.39421 4.59150 29.18 1490.00 1022.152 15.75 15.71 11.950 3.39431 4.59313 29.19 1489.98 1022.164 16.05 16.01 11.935 3.39407 4.59460 29.20 1489.94 1022.175 16.35 16.31 11.928 3.39516 4.59695 29.22 1489.94 1022.190 16.65 16.61 11.921 3.39525 4.59799 29.22 1489.93 1022.197 16.95 16.91 11.909 3.39457 4.59858 29.23 1489.90 1022.203 17.25 17.21 11.882 3.39426 4.60153 29.25 1489.83 1022.223 17.55 17.51 11.813 3.39369 4.60937 29.29 1489.65 1022.275 17.85 17.80 11.706 3.39205 4.62063 29.36 1489.36 1022.348 18.15 18.10 11.667 3.39149 4.62477 29.39 1489.26 1022.376 18.45 18.40 11.631 3.39151 4.62927 29.41 1489.18 1022.406 18.75 18.70 11.587 3.39031 4.63322 29.44 1489.06 1022.433 19.05 19.00 11.556 3.39089 4.63788 29.47 1488.99 1022.463 19.35 19.30 11.555 3.39128 4.63863 29.47 1488.99 1022.468 19.65 19.60 11.561 3.39140 4.63795 29.47 1489.02 1022.465 19.95 19.90 11.556 3.39145 4.63867 29.47 1489.01 1022.471 20.37 20.31 11.563 3.39316 4.64017 29.48 1489.05 1022.480