*2019/08/26 15:30:33.60 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:39:08.000 END TIME : UTC 2017/03/03 18:39:26.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 92 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.58 2 Depth metres 0.15 27.53 3 Temperature 'deg C (ITS90)' 7.359 7.675 4 Conductivity S/m 2.75351 2.89495 5 Conductance:Specific S/m 4.25395 4.43057 6 Salinity PSS-78 26.32 27.56 7 Speed:Sound m/s 1469.25 1472.46 8 Density kg/m^3 1020.552 1021.609 $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 : 333 LATITUDE : 49 18.19489 N ! (deg min) LONGITUDE : 123 4.96888 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 21:25:13 92 92 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:33 92 92 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:25:12 -HEADER EDITS: 2017/12/13 11:33:18 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 15:30:33 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_20170303_183908 % Cast time (UTC),2017-03-03 18:39:08 % Cast time (local),2017-03-03 18:39:08 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3032481 % Start longitude,-123.0828146 % Start altitude,-12.0600004196167 % Start GPS horizontal error(Meter),4.4499998092651367 % Start GPS vertical error(Meter),6.9200000762939453 % Start GPS number of satellites,9 % End latitude,49.3035486 % End longitude,-123.0827485 % End altitude,-29.489999771118164 % End GPS horizontal error(Meter),4.570000171661377 % End GPS vertical error(Meter),8.3500003814697266 % End GPS number of satellites,8 % Cast duration (Seconds),78.8 % 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 7.359 2.75355 4.25468 26.33 1469.25 1020.555 0.45 0.45 7.364 2.75351 4.25395 26.32 1469.27 1020.552 0.75 0.75 7.366 2.75408 4.25458 26.33 1469.29 1020.557 1.05 1.05 7.372 2.75517 4.25554 26.34 1469.33 1020.563 1.35 1.35 7.376 2.75806 4.25941 26.36 1469.38 1020.585 1.65 1.65 7.382 2.75954 4.26095 26.37 1469.42 1020.595 1.95 1.95 7.384 2.76123 4.26326 26.39 1469.46 1020.608 2.25 2.25 7.386 2.76239 4.26474 26.40 1469.48 1020.617 2.55 2.55 7.389 2.76291 4.26516 26.40 1469.50 1020.621 2.85 2.85 7.393 2.76481 4.26761 26.42 1469.54 1020.635 3.15 3.15 7.396 2.76746 4.27129 26.45 1469.59 1020.656 3.45 3.45 7.400 2.77027 4.27513 26.47 1469.64 1020.678 3.75 3.75 7.407 2.77300 4.27841 26.50 1469.71 1020.697 4.05 4.04 7.413 2.77640 4.28290 26.53 1469.77 1020.722 4.35 4.34 7.420 2.77874 4.28555 26.55 1469.83 1020.737 4.65 4.64 7.427 2.78463 4.29373 26.60 1469.93 1020.782 4.95 4.94 7.438 2.78975 4.30010 26.65 1470.04 1020.817 5.25 5.24 7.446 2.79257 4.30343 26.67 1470.10 1020.837 5.55 5.54 7.448 2.79833 4.31201 26.73 1470.19 1020.884 5.85 5.84 7.449 2.80060 4.31540 26.75 1470.22 1020.903 6.15 6.14 7.448 2.80319 4.31947 26.78 1470.26 1020.926 6.45 6.44 7.451 2.80668 4.32447 26.82 1470.32 1020.954 6.75 6.74 7.457 2.81034 4.32933 26.85 1470.39 1020.982 7.05 7.04 7.463 2.81158 4.33049 26.86 1470.43 1020.989 7.35 7.34 7.466 2.81205 4.33082 26.86 1470.45 1020.992 7.65 7.64 7.469 2.81400 4.33331 26.88 1470.49 1021.007 7.95 7.94 7.474 2.81594 4.33569 26.89 1470.53 1021.021 8.25 8.24 7.478 2.81737 4.33733 26.91 1470.57 1021.031 8.55 8.54 7.482 2.81902 4.33937 26.92 1470.61 1021.043 8.85 8.84 7.485 2.82003 4.34056 26.93 1470.63 1021.050 9.15 9.14 7.486 2.82049 4.34113 26.93 1470.64 1021.055 9.45 9.44 7.487 2.82232 4.34373 26.95 1470.68 1021.070 9.75 9.74 7.489 2.82324 4.34497 26.96 1470.70 1021.078 10.05 10.04 7.489 2.82362 4.34545 26.96 1470.71 1021.082 10.35 10.34 7.491 2.82374 4.34542 26.96 1470.72 1021.083 10.65 10.63 7.493 2.82419 4.34588 26.97 1470.74 1021.087 10.95 10.93 7.493 2.82474 4.34669 26.97 1470.75 1021.092 11.25 11.23 7.494 2.82483 4.34672 26.97 1470.76 1021.094 11.55 11.53 7.495 2.82531 4.34728 26.98 1470.77 1021.098 11.85 11.83 7.497 2.82660 4.34899 26.99 1470.80 1021.108 12.15 12.13 7.498 2.82672 4.34902 26.99 1470.81 1021.110 12.45 12.43 7.499 2.82740 4.35002 26.99 1470.83 1021.116 12.75 12.73 7.499 2.82771 4.35039 27.00 1470.84 1021.120 13.05 13.03 7.500 2.82787 4.35054 27.00 1470.85 1021.122 13.35 13.33 7.501 2.82741 4.34969 26.99 1470.85 1021.118 13.65 13.63 7.502 2.82817 4.35078 27.00 1470.86 1021.126 13.95 13.93 7.502 2.82823 4.35087 27.00 1470.87 1021.127 14.25 14.23 7.503 2.82852 4.35122 27.00 1470.88 1021.131 14.55 14.53 7.503 2.82831 4.35082 27.00 1470.88 1021.130 14.85 14.83 7.504 2.82868 4.35133 27.00 1470.89 1021.134 15.15 15.13 7.505 2.82995 4.35311 27.02 1470.92 1021.145 15.45 15.43 7.506 2.83036 4.35365 27.02 1470.93 1021.149 15.75 15.73 7.507 2.83166 4.35552 27.03 1470.96 1021.160 16.05 16.02 7.506 2.83219 4.35635 27.04 1470.97 1021.166 16.35 16.32 7.509 2.83168 4.35517 27.03 1470.97 1021.161 16.65 16.62 7.510 2.83291 4.35692 27.04 1471.00 1021.171 16.95 16.92 7.512 2.83269 4.35638 27.04 1471.01 1021.170 17.25 17.22 7.512 2.83366 4.35789 27.05 1471.02 1021.179 17.55 17.52 7.512 2.83410 4.35859 27.05 1471.03 1021.184 17.85 17.82 7.512 2.83445 4.35903 27.05 1471.04 1021.188 18.15 18.12 7.513 2.83450 4.35899 27.05 1471.05 1021.189 18.45 18.42 7.515 2.83504 4.35964 27.06 1471.07 1021.194 18.75 18.72 7.515 2.83510 4.35969 27.06 1471.07 1021.195 19.05 19.02 7.516 2.83491 4.35927 27.06 1471.08 1021.194 19.35 19.32 7.516 2.83537 4.35990 27.06 1471.09 1021.199 19.65 19.62 7.517 2.83543 4.35997 27.06 1471.10 1021.201 19.95 19.92 7.518 2.83609 4.36082 27.07 1471.11 1021.206 20.25 20.22 7.519 2.83563 4.35999 27.06 1471.12 1021.203 20.55 20.52 7.519 2.83608 4.36060 27.07 1471.13 1021.208 20.85 20.82 7.521 2.83668 4.36133 27.07 1471.14 1021.213 21.15 21.12 7.523 2.83668 4.36101 27.07 1471.16 1021.212 21.45 21.42 7.527 2.83765 4.36201 27.08 1471.18 1021.219 21.75 21.71 7.532 2.83904 4.36346 27.09 1471.22 1021.228 22.05 22.02 7.536 2.84024 4.36478 27.10 1471.25 1021.236 22.35 22.31 7.540 2.84259 4.36780 27.12 1471.30 1021.254 22.65 22.61 7.546 2.84484 4.37052 27.14 1471.35 1021.270 22.95 22.91 7.554 2.84653 4.37203 27.15 1471.40 1021.279 23.25 23.21 7.564 2.84873 4.37409 27.16 1471.46 1021.291 23.55 23.51 7.572 2.85054 4.37574 27.18 1471.52 1021.301 23.85 23.81 7.586 2.85723 4.38415 27.23 1471.65 1021.347 24.15 24.11 7.593 2.86570 4.39612 27.32 1471.79 1021.413 24.45 24.41 7.604 2.87041 4.40196 27.36 1471.88 1021.445 24.75 24.71 7.612 2.87101 4.40177 27.36 1471.92 1021.445 25.05 25.01 7.615 2.87160 4.40231 27.36 1471.94 1021.449 25.35 25.31 7.618 2.87192 4.40236 27.36 1471.96 1021.451 25.65 25.61 7.618 2.87332 4.40447 27.38 1471.98 1021.463 25.95 25.91 7.622 2.88232 4.41775 27.47 1472.12 1021.536 26.25 26.21 7.635 2.88904 4.42622 27.53 1472.25 1021.583 26.55 26.51 7.650 2.89208 4.42891 27.55 1472.33 1021.598 26.85 26.80 7.664 2.89272 4.42798 27.55 1472.39 1021.594 27.15 27.11 7.669 2.89487 4.43057 27.56 1472.44 1021.609 27.58 27.53 7.675 2.89495 4.42992 27.56 1472.46 1021.607