*2019/08/26 15:30:11.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/18 01:18:26.000 END TIME : UTC 2016/10/18 01:18:37.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 60 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 17.76 2 Depth metres 0.15 17.76 3 Temperature 'deg C (ITS90)' 10.404 10.976 4 Conductivity S/m 0.67858 3.31401 5 Conductance:Specific S/m 0.95731 4.65678 6 Salinity PSS-78 5.29 29.5 7 Speed:Sound m/s 1455.42 1485.55 8 Density kg/m^3 1003.793 1022.647 $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 : 397 LATITUDE : 49 6.27655 N ! (deg min) LONGITUDE : 123 18.21496 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 22:29:56 60 60 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:11 60 60 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:29:55 -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_011826 % Cast time (UTC),2016-10-18 01:18:26 % Cast time (local),2016-10-18 01:18:26 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1046091 % Start longitude,-123.3035826 % Start altitude,-17.540000915527344 % Start GPS horizontal error(Meter),1.8999999761581421 % Start GPS vertical error(Meter),2.5799999237060547 % Start GPS number of satellites,11 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),85.4 % 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 10.404 0.68083 0.96152 5.31 1455.42 1003.815 0.45 0.46 10.442 0.67858 0.95731 5.29 1455.54 1003.793 0.75 0.76 10.452 0.83609 1.17917 6.62 1457.20 1004.825 1.05 1.07 10.465 1.02463 1.44456 8.23 1459.21 1006.080 1.35 1.37 10.531 1.17933 1.65958 9.56 1461.08 1007.107 1.65 1.67 10.618 1.38644 1.94625 11.37 1463.59 1008.495 1.95 1.98 10.616 1.47462 2.07014 12.15 1464.53 1009.107 2.25 2.28 10.640 1.67377 2.34814 13.94 1466.77 1010.487 2.55 2.58 10.731 1.97963 2.77019 16.69 1470.43 1012.609 2.85 2.88 10.812 2.19133 3.05948 18.60 1473.03 1014.085 3.15 3.18 10.878 2.39348 3.33562 20.45 1475.50 1015.511 3.45 3.48 10.935 2.51266 3.49614 21.54 1477.01 1016.345 3.75 3.79 10.945 2.95700 4.11323 25.76 1482.12 1019.617 4.05 4.09 10.964 3.11904 4.33631 27.30 1484.05 1020.817 4.35 4.38 10.976 3.16629 4.40053 27.75 1484.63 1021.164 4.65 4.68 10.962 3.19785 4.44621 28.07 1484.97 1021.414 4.95 4.98 10.915 3.20858 4.46689 28.21 1484.98 1021.532 5.25 5.28 10.876 3.22200 4.49049 28.37 1485.03 1021.665 5.55 5.58 10.850 3.24095 4.52019 28.58 1485.19 1021.830 5.85 5.88 10.821 3.25465 4.54294 28.73 1485.28 1021.957 6.15 6.18 10.786 3.26264 4.55850 28.84 1485.29 1022.046 6.45 6.48 10.755 3.27108 4.57433 28.95 1485.31 1022.136 6.75 6.78 10.736 3.28032 4.58971 29.05 1485.37 1022.223 7.05 7.08 10.726 3.28705 4.60040 29.12 1485.43 1022.283 7.35 7.38 10.720 3.29326 4.60979 29.19 1485.49 1022.336 7.65 7.68 10.716 3.29421 4.61169 29.20 1485.50 1022.348 7.95 7.98 10.716 3.29532 4.61321 29.21 1485.52 1022.358 8.25 8.28 10.714 3.29490 4.61293 29.21 1485.51 1022.358 8.55 8.57 10.712 3.29535 4.61379 29.22 1485.52 1022.364 8.85 8.87 10.707 3.29580 4.61506 29.22 1485.51 1022.372 9.15 9.17 10.701 3.29559 4.61551 29.23 1485.50 1022.376 9.45 9.47 10.700 3.29831 4.61950 29.25 1485.54 1022.400 9.75 9.77 10.690 3.29638 4.61803 29.24 1485.49 1022.394 10.05 10.07 10.671 3.29919 4.62446 29.29 1485.48 1022.432 10.35 10.37 10.645 3.30049 4.62971 29.32 1485.43 1022.464 10.65 10.67 10.630 3.30338 4.63565 29.36 1485.43 1022.498 10.95 10.97 10.631 3.30744 4.64130 29.40 1485.49 1022.531 11.25 11.27 10.629 3.30686 4.64062 29.39 1485.48 1022.528 11.55 11.56 10.630 3.31120 4.64665 29.44 1485.54 1022.562 11.85 11.86 10.621 3.31170 4.64847 29.45 1485.53 1022.574 12.15 12.16 10.609 3.31219 4.65076 29.46 1485.51 1022.589 12.45 12.46 10.600 3.31273 4.65273 29.48 1485.49 1022.602 12.75 12.76 10.599 3.31234 4.65234 29.47 1485.49 1022.601 13.05 13.06 10.597 3.31197 4.65201 29.47 1485.48 1022.601 13.35 13.36 10.595 3.31238 4.65284 29.48 1485.49 1022.607 13.65 13.66 10.594 3.31261 4.65330 29.48 1485.49 1022.610 13.95 13.96 10.592 3.31250 4.65343 29.48 1485.49 1022.613 14.25 14.26 10.591 3.31236 4.65340 29.48 1485.49 1022.614 14.55 14.56 10.588 3.31285 4.65452 29.49 1485.49 1022.621 14.85 14.86 10.586 3.31249 4.65418 29.48 1485.49 1022.621 15.15 15.15 10.584 3.31309 4.65534 29.49 1485.50 1022.629 15.45 15.45 10.582 3.31346 4.65605 29.50 1485.50 1022.634 15.75 15.75 10.582 3.31382 4.65662 29.50 1485.51 1022.638 16.05 16.05 10.586 3.31268 4.65450 29.48 1485.51 1022.628 16.35 16.35 10.590 3.31297 4.65441 29.48 1485.53 1022.628 16.65 16.65 10.591 3.31247 4.65347 29.48 1485.53 1022.624 16.95 16.95 10.593 3.31171 4.65224 29.47 1485.53 1022.619 17.25 17.25 10.591 3.31330 4.65464 29.49 1485.55 1022.633 17.55 17.55 10.583 3.31401 4.65678 29.50 1485.54 1022.647 17.76 17.76 10.585 3.31360 4.65587 29.49 1485.55 1022.643