*2019/08/26 15:30:29.19 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/02/28 17:27:17.000 END TIME : UTC 2017/02/28 17:27:42.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 130 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.95 2 Depth metres 0.15 38.87 3 Temperature 'deg C (ITS90)' 7.494 7.879 4 Conductivity S/m 2.82729 2.95541 5 Conductance:Specific S/m 4.35048 4.4947 6 Salinity PSS-78 27 28.03 7 Speed:Sound m/s 1470.62 1474.01 8 Density kg/m^3 1021.067 1021.999 $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 : 265 LATITUDE : 49 17.90198 N ! (deg min) LONGITUDE : 123 5.01718 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 20:18:31 130 130 HDREDIT2 3.1.1 2017/12/13 11:33:16 ? ? CALIB 12.0 2019/08/26 15:30:29 130 130 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 20:18:31 -HEADER EDITS: 2017/12/13 11:33:16 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 15:30:29 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_20170228_172717_mid % Cast time (UTC),2017-02-28 17:27:17 % Cast time (local),2017-02-28 17:27:17 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2983663 % Start longitude,-123.0836197 % Start altitude,-10.930000305175781 % Start GPS horizontal error(Meter),33.020000457763672 % Start GPS vertical error(Meter),25.149999618530273 % Start GPS number of satellites,6 % End latitude,49.2983251 % End longitude,-123.0837915 % End altitude,-17.299999237060547 % End GPS horizontal error(Meter),10.989999771118164 % End GPS vertical error(Meter),9.09000015258789 % End GPS number of satellites,6 % Cast duration (Seconds),133.8 % 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 7.495 2.82763 4.35092 27.00 1470.62 1021.068 0.45 0.45 7.494 2.82729 4.35048 27.00 1470.62 1021.067 0.75 0.75 7.497 2.82902 4.35277 27.02 1470.66 1021.081 1.05 1.05 7.498 2.82901 4.35259 27.02 1470.66 1021.081 1.35 1.35 7.498 2.82815 4.35129 27.01 1470.66 1021.075 1.65 1.65 7.501 2.82947 4.35289 27.02 1470.69 1021.085 1.95 1.95 7.501 2.83144 4.35591 27.04 1470.72 1021.103 2.25 2.25 7.500 2.83265 4.35789 27.05 1470.74 1021.115 2.55 2.55 7.503 2.83345 4.35877 27.06 1470.76 1021.121 2.85 2.85 7.507 2.83518 4.36083 27.07 1470.80 1021.133 3.15 3.15 7.512 2.83644 4.36218 27.08 1470.83 1021.141 3.45 3.44 7.518 2.83813 4.36387 27.09 1470.88 1021.152 3.75 3.74 7.528 2.83934 4.36451 27.10 1470.93 1021.156 4.05 4.04 7.535 2.84187 4.36741 27.12 1470.99 1021.173 4.35 4.34 7.539 2.84410 4.37034 27.14 1471.03 1021.190 4.65 4.64 7.546 2.84638 4.37291 27.16 1471.09 1021.205 4.95 4.94 7.552 2.84665 4.37241 27.16 1471.12 1021.203 5.25 5.24 7.556 2.84724 4.37287 27.16 1471.14 1021.207 5.55 5.54 7.560 2.84762 4.37287 27.16 1471.16 1021.208 5.85 5.84 7.564 2.84846 4.37368 27.17 1471.19 1021.214 6.15 6.14 7.567 2.84805 4.37259 27.16 1471.20 1021.209 6.45 6.44 7.568 2.84933 4.37443 27.17 1471.22 1021.220 6.75 6.74 7.569 2.84926 4.37424 27.17 1471.23 1021.221 7.05 7.04 7.570 2.85025 4.37559 27.18 1471.25 1021.229 7.35 7.34 7.573 2.85115 4.37657 27.19 1471.27 1021.236 7.65 7.64 7.576 2.85152 4.37666 27.19 1471.29 1021.237 7.95 7.94 7.579 2.85177 4.37669 27.19 1471.31 1021.239 8.25 8.23 7.582 2.85183 4.37636 27.19 1471.32 1021.238 8.55 8.54 7.586 2.85203 4.37622 27.19 1471.34 1021.239 8.85 8.83 7.590 2.85276 4.37677 27.19 1471.37 1021.243 9.15 9.13 7.594 2.85527 4.37999 27.21 1471.42 1021.261 9.45 9.43 7.600 2.85574 4.37998 27.21 1471.44 1021.262 9.75 9.73 7.604 2.85717 4.38169 27.23 1471.48 1021.273 10.05 10.03 7.607 2.85855 4.38334 27.24 1471.51 1021.283 10.35 10.33 7.615 2.86101 4.38599 27.26 1471.57 1021.298 10.65 10.63 7.626 2.86520 4.39103 27.29 1471.66 1021.326 10.95 10.93 7.628 2.86731 4.39393 27.31 1471.70 1021.343 11.25 11.23 7.631 2.86585 4.39131 27.30 1471.69 1021.330 11.55 11.53 7.629 2.86624 4.39218 27.30 1471.70 1021.336 11.85 11.83 7.631 2.86693 4.39299 27.31 1471.72 1021.342 12.15 12.13 7.633 2.86719 4.39306 27.31 1471.73 1021.344 12.45 12.43 7.636 2.87056 4.39790 27.34 1471.79 1021.371 12.75 12.73 7.641 2.87812 4.40873 27.42 1471.91 1021.430 13.05 13.03 7.653 2.87929 4.40891 27.42 1471.96 1021.432 13.35 13.33 7.663 2.87939 4.40775 27.41 1472.00 1021.427 13.65 13.62 7.666 2.88018 4.40847 27.42 1472.02 1021.432 13.95 13.92 7.669 2.88032 4.40838 27.42 1472.04 1021.433 14.25 14.22 7.672 2.88115 4.40922 27.42 1472.06 1021.439 14.55 14.52 7.677 2.88176 4.40941 27.43 1472.09 1021.441 14.85 14.82 7.681 2.88210 4.40945 27.43 1472.11 1021.442 15.15 15.12 7.684 2.88353 4.41117 27.44 1472.14 1021.453 15.45 15.42 7.685 2.88486 4.41312 27.45 1472.17 1021.465 15.75 15.72 7.687 2.88578 4.41424 27.46 1472.19 1021.472 16.05 16.02 7.691 2.88671 4.41513 27.46 1472.22 1021.478 16.35 16.32 7.694 2.88782 4.41641 27.47 1472.25 1021.486 16.65 16.62 7.697 2.88867 4.41737 27.48 1472.27 1021.492 16.95 16.92 7.699 2.89023 4.41951 27.50 1472.30 1021.505 17.25 17.22 7.701 2.89111 4.42055 27.50 1472.32 1021.512 17.55 17.52 7.706 2.89145 4.42033 27.50 1472.35 1021.512 17.85 17.82 7.710 2.89132 4.41959 27.50 1472.36 1021.509 18.15 18.12 7.713 2.89158 4.41956 27.50 1472.38 1021.510 18.45 18.41 7.709 2.89157 4.42015 27.50 1472.37 1021.515 18.75 18.71 7.713 2.89228 4.42067 27.50 1472.40 1021.519 19.05 19.01 7.717 2.89246 4.42048 27.50 1472.41 1021.519 19.35 19.31 7.719 2.89225 4.41987 27.50 1472.42 1021.517 19.65 19.61 7.717 2.89234 4.42018 27.50 1472.42 1021.520 19.95 19.91 7.717 2.89273 4.42087 27.51 1472.43 1021.525 20.25 20.21 7.718 2.89306 4.42125 27.51 1472.44 1021.528 20.55 20.51 7.719 2.89299 4.42102 27.51 1472.45 1021.528 20.85 20.81 7.719 2.89293 4.42085 27.51 1472.46 1021.529 21.15 21.11 7.720 2.89299 4.42079 27.51 1472.46 1021.530 21.45 21.41 7.721 2.89319 4.42093 27.51 1472.48 1021.532 21.75 21.71 7.721 2.89319 4.42100 27.51 1472.48 1021.533 22.05 22.01 7.722 2.89359 4.42153 27.51 1472.49 1021.538 22.35 22.31 7.721 2.89340 4.42137 27.51 1472.49 1021.538 22.65 22.61 7.721 2.89316 4.42096 27.51 1472.49 1021.537 22.95 22.91 7.720 2.89346 4.42153 27.51 1472.50 1021.542 23.25 23.20 7.718 2.89310 4.42123 27.51 1472.49 1021.541 23.55 23.50 7.719 2.89371 4.42202 27.51 1472.51 1021.547 23.85 23.80 7.722 2.89386 4.42182 27.51 1472.53 1021.547 24.15 24.10 7.724 2.89391 4.42167 27.51 1472.54 1021.547 24.45 24.40 7.723 2.89407 4.42202 27.51 1472.54 1021.551 24.75 24.70 7.723 2.89442 4.42258 27.52 1472.55 1021.555 25.05 25.00 7.724 2.89464 4.42280 27.52 1472.56 1021.557 25.35 25.30 7.724 2.89466 4.42279 27.52 1472.57 1021.559 25.65 25.60 7.724 2.89421 4.42216 27.51 1472.56 1021.556 25.95 25.90 7.723 2.89413 4.42219 27.51 1472.56 1021.558 26.25 26.20 7.724 2.89469 4.42293 27.52 1472.58 1021.563 26.55 26.50 7.725 2.89495 4.42320 27.52 1472.59 1021.566 26.85 26.80 7.724 2.89493 4.42323 27.52 1472.59 1021.567 27.15 27.10 7.726 2.89469 4.42268 27.52 1472.60 1021.566 27.45 27.40 7.730 2.89540 4.42322 27.52 1472.62 1021.570 27.75 27.70 7.733 2.89638 4.42427 27.53 1472.65 1021.577 28.05 28.00 7.732 2.89750 4.42603 27.54 1472.67 1021.587 28.35 28.29 7.732 2.89783 4.42656 27.54 1472.68 1021.592 28.65 28.59 7.736 2.89862 4.42729 27.55 1472.70 1021.597 28.95 28.89 7.740 2.90249 4.43262 27.59 1472.77 1021.627 29.25 29.19 7.744 2.90311 4.43308 27.59 1472.79 1021.630 29.55 29.49 7.745 2.90426 4.43472 27.60 1472.82 1021.640 29.85 29.79 7.749 2.90461 4.43466 27.60 1472.84 1021.641 30.15 30.09 7.755 2.90546 4.43508 27.61 1472.87 1021.645 30.45 30.39 7.757 2.90688 4.43709 27.62 1472.90 1021.657 30.75 30.69 7.758 2.90891 4.44005 27.64 1472.93 1021.674 31.05 30.99 7.763 2.90905 4.43954 27.64 1472.95 1021.672 31.35 31.29 7.768 2.91090 4.44173 27.65 1473.00 1021.685 31.65 31.59 7.770 2.91167 4.44257 27.66 1473.02 1021.691 31.95 31.89 7.771 2.91482 4.44722 27.69 1473.07 1021.717 32.25 32.19 7.780 2.91681 4.44902 27.70 1473.12 1021.728 32.55 32.48 7.788 2.91945 4.45204 27.73 1473.18 1021.746 32.85 32.78 7.793 2.92111 4.45385 27.74 1473.23 1021.756 33.15 33.08 7.795 2.92481 4.45922 27.77 1473.29 1021.787 33.45 33.38 7.803 2.92798 4.46301 27.80 1473.35 1021.808 33.75 33.68 7.809 2.92952 4.46445 27.81 1473.40 1021.817 34.05 33.98 7.812 2.92935 4.46385 27.81 1473.41 1021.815 34.35 34.28 7.813 2.93001 4.46464 27.82 1473.42 1021.821 34.65 34.58 7.819 2.93165 4.46636 27.83 1473.47 1021.831 34.95 34.88 7.821 2.93399 4.46962 27.85 1473.51 1021.850 35.25 35.18 7.821 2.93527 4.47168 27.86 1473.53 1021.862 35.55 35.48 7.824 2.93763 4.47489 27.89 1473.57 1021.881 35.85 35.78 7.830 2.94056 4.47853 27.91 1473.63 1021.901 36.15 36.08 7.838 2.94212 4.47973 27.92 1473.68 1021.909 36.45 36.38 7.843 2.94298 4.48032 27.93 1473.71 1021.913 36.75 36.67 7.843 2.94499 4.48344 27.95 1473.74 1021.931 37.05 36.97 7.852 2.95095 4.49128 28.00 1473.85 1021.975 37.35 37.27 7.864 2.95280 4.49239 28.01 1473.91 1021.982 37.65 37.57 7.873 2.95327 4.49192 28.01 1473.95 1021.980 37.95 37.87 7.872 2.95364 4.49270 28.01 1473.95 1021.986 38.25 38.17 7.867 2.95408 4.49393 28.02 1473.95 1021.994 38.55 38.47 7.875 2.95524 4.49470 28.03 1473.99 1021.999 38.95 38.87 7.879 2.95541 4.49442 28.03 1474.01 1021.999