*2019/08/26 15:30:33.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:10:28.000 END TIME : UTC 2017/03/03 18:10:45.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 86 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.76 2 Depth metres 0.15 25.72 3 Temperature 'deg C (ITS90)' 7.348 7.648 4 Conductivity S/m 2.75001 2.87703 5 Conductance:Specific S/m 4.25058 4.40615 6 Salinity PSS-78 26.3 27.39 7 Speed:Sound m/s 1469.17 1472.12 8 Density kg/m^3 1020.535 1021.471 $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 : 327 LATITUDE : 49 17.68102 N ! (deg min) LONGITUDE : 123 3.61544 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 21:19:10 86 86 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:33 86 86 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:19:09 -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_181028 % Cast time (UTC),2017-03-03 18:10:28 % Cast time (local),2017-03-03 18:10:28 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2946836 % Start longitude,-123.0602573 % Start altitude,-14.470000267028809 % Start GPS horizontal error(Meter),5.1100001335144043 % Start GPS vertical error(Meter),9.2200002670288086 % Start GPS number of satellites,5 % End latitude,49.2945466 % End longitude,-123.0604241 % End altitude,-23.540000915527344 % End GPS horizontal error(Meter),17.479999542236328 % End GPS vertical error(Meter),38.790000915527344 % End GPS number of satellites,4 % Cast duration (Seconds),64.2 % 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 7.348 2.75012 4.25087 26.30 1469.17 1020.535 0.45 0.45 7.349 2.75001 4.25058 26.30 1469.18 1020.535 0.75 0.75 7.349 2.75309 4.25533 26.33 1469.22 1020.561 1.05 1.05 7.350 2.75647 4.26036 26.37 1469.28 1020.589 1.35 1.35 7.350 2.75743 4.26184 26.38 1469.30 1020.599 1.65 1.65 7.352 2.75631 4.25991 26.36 1469.29 1020.590 1.95 1.95 7.353 2.75618 4.25949 26.36 1469.30 1020.589 2.25 2.25 7.354 2.75603 4.25925 26.36 1469.30 1020.589 2.55 2.55 7.354 2.75572 4.25874 26.36 1469.30 1020.587 2.85 2.85 7.354 2.75651 4.25991 26.36 1469.32 1020.595 3.15 3.15 7.355 2.75750 4.26132 26.37 1469.34 1020.604 3.45 3.45 7.355 2.75911 4.26376 26.39 1469.37 1020.618 3.75 3.75 7.356 2.76110 4.26675 26.41 1469.40 1020.635 4.05 4.04 7.358 2.76478 4.27219 26.45 1469.46 1020.666 4.35 4.34 7.359 2.76648 4.27467 26.46 1469.49 1020.680 4.65 4.64 7.360 2.76744 4.27600 26.47 1469.51 1020.688 4.95 4.94 7.361 2.76768 4.27624 26.47 1469.52 1020.691 5.25 5.24 7.362 2.76825 4.27707 26.48 1469.53 1020.697 5.55 5.54 7.365 2.76917 4.27809 26.49 1469.56 1020.703 5.85 5.84 7.368 2.77164 4.28146 26.51 1469.61 1020.723 6.15 6.14 7.369 2.77503 4.28653 26.55 1469.66 1020.751 6.45 6.44 7.372 2.77695 4.28915 26.56 1469.70 1020.766 6.75 6.74 7.374 2.77707 4.28898 26.56 1469.71 1020.767 7.05 7.04 7.377 2.77703 4.28865 26.56 1469.72 1020.766 7.35 7.34 7.378 2.77694 4.28838 26.56 1469.73 1020.766 7.65 7.64 7.380 2.77744 4.28877 26.56 1469.75 1020.769 7.95 7.94 7.383 2.77813 4.28942 26.57 1469.77 1020.774 8.25 8.24 7.387 2.77999 4.29178 26.58 1469.81 1020.788 8.55 8.54 7.394 2.78192 4.29390 26.60 1469.86 1020.801 8.85 8.84 7.404 2.78696 4.30031 26.64 1469.96 1020.836 9.15 9.14 7.418 2.79657 4.31324 26.73 1470.13 1020.906 9.45 9.44 7.444 2.80307 4.31988 26.78 1470.30 1020.943 9.75 9.74 7.462 2.81065 4.32908 26.85 1470.46 1020.993 10.05 10.04 7.474 2.81439 4.33327 26.88 1470.55 1021.017 10.35 10.34 7.485 2.81721 4.33611 26.90 1470.62 1021.033 10.65 10.64 7.496 2.81912 4.33768 26.91 1470.68 1021.043 10.95 10.94 7.510 2.82027 4.33757 26.91 1470.74 1021.043 11.25 11.23 7.523 2.82941 4.34991 27.00 1470.90 1021.110 11.55 11.53 7.534 2.83626 4.35895 27.06 1471.03 1021.160 11.85 11.83 7.542 2.83722 4.35926 27.06 1471.07 1021.163 12.15 12.13 7.549 2.83802 4.35962 27.07 1471.11 1021.166 12.45 12.43 7.556 2.83961 4.36113 27.08 1471.15 1021.175 12.75 12.73 7.560 2.84050 4.36195 27.08 1471.18 1021.181 13.05 13.03 7.563 2.84134 4.36287 27.09 1471.20 1021.187 13.35 13.33 7.566 2.84174 4.36304 27.09 1471.22 1021.189 13.65 13.63 7.569 2.84188 4.36290 27.09 1471.24 1021.189 13.95 13.93 7.572 2.84418 4.36597 27.11 1471.28 1021.207 14.25 14.23 7.576 2.84553 4.36749 27.12 1471.32 1021.217 14.55 14.53 7.580 2.84765 4.37023 27.14 1471.36 1021.232 14.85 14.83 7.583 2.84827 4.37076 27.15 1471.38 1021.237 15.15 15.13 7.587 2.84986 4.37273 27.16 1471.42 1021.248 15.45 15.43 7.591 2.85059 4.37334 27.16 1471.44 1021.253 15.75 15.73 7.593 2.85095 4.37356 27.17 1471.46 1021.255 16.05 16.03 7.596 2.85466 4.37879 27.20 1471.53 1021.285 16.35 16.33 7.599 2.85642 4.38112 27.22 1471.56 1021.298 16.65 16.62 7.602 2.85613 4.38034 27.21 1471.57 1021.295 16.95 16.93 7.606 2.85631 4.38005 27.21 1471.59 1021.295 17.25 17.22 7.610 2.85778 4.38182 27.23 1471.62 1021.306 17.55 17.52 7.614 2.86203 4.38771 27.27 1471.70 1021.339 17.85 17.82 7.616 2.86410 4.39064 27.29 1471.73 1021.356 18.15 18.12 7.620 2.86377 4.38964 27.28 1471.74 1021.351 18.45 18.42 7.624 2.86496 4.39094 27.29 1471.78 1021.360 18.75 18.72 7.627 2.86536 4.39112 27.29 1471.80 1021.362 19.05 19.02 7.630 2.86732 4.39370 27.31 1471.84 1021.377 19.35 19.32 7.632 2.86997 4.39749 27.34 1471.88 1021.399 19.65 19.62 7.634 2.87156 4.39965 27.35 1471.91 1021.411 19.95 19.92 7.637 2.87279 4.40113 27.36 1471.94 1021.421 20.25 20.22 7.638 2.87350 4.40202 27.37 1471.96 1021.427 20.55 20.52 7.639 2.87214 4.39985 27.35 1471.95 1021.416 20.85 20.82 7.640 2.87212 4.39969 27.35 1471.95 1021.417 21.15 21.12 7.640 2.87251 4.40022 27.35 1471.97 1021.421 21.45 21.42 7.642 2.87403 4.40240 27.37 1471.99 1021.434 21.75 21.71 7.642 2.87376 4.40197 27.37 1472.00 1021.433 22.05 22.01 7.642 2.87379 4.40194 27.36 1472.00 1021.434 22.35 22.31 7.644 2.87440 4.40269 27.37 1472.02 1021.439 22.65 22.61 7.645 2.87514 4.40362 27.38 1472.04 1021.445 22.95 22.91 7.644 2.87531 4.40398 27.38 1472.04 1021.449 23.25 23.21 7.642 2.87609 4.40547 27.39 1472.05 1021.458 23.55 23.51 7.643 2.87611 4.40536 27.39 1472.06 1021.459 23.85 23.81 7.645 2.87620 4.40527 27.39 1472.07 1021.460 24.15 24.11 7.645 2.87615 4.40516 27.39 1472.08 1021.460 24.45 24.41 7.648 2.87691 4.40593 27.39 1472.10 1021.466 24.75 24.71 7.648 2.87703 4.40615 27.39 1472.10 1021.468 25.05 25.01 7.648 2.87635 4.40511 27.39 1472.10 1021.464 25.35 25.31 7.648 2.87672 4.40565 27.39 1472.11 1021.468 25.76 25.72 7.648 2.87689 4.40588 27.39 1472.12 1021.471