*2019/08/26 15:30:32.55 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 00:21:56.000 END TIME : UTC 2017/03/03 00:22:16.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 101 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.04 2 Depth metres 0.15 29.99 3 Temperature 'deg C (ITS90)' 7.383 7.599 4 Conductivity S/m 2.76867 2.87434 5 Conductance:Specific S/m 4.27364 4.40868 6 Salinity PSS-78 26.46 27.4 7 Speed:Sound m/s 1469.55 1472.01 8 Density kg/m^3 1020.656 1021.505 $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 : 316 LATITUDE : 49 17.32141 N ! (deg min) LONGITUDE : 123 5.14700 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 21:08:20 101 101 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:32 101 101 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:08:20 -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 15:30:32 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_002156 % Cast time (UTC),2017-03-03 00:21:56 % Cast time (local),2017-03-03 00:21:56 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2886902 % Start longitude,-123.0857834 % Start altitude,-18.899999618530273 % Start GPS horizontal error(Meter),6.21999979019165 % Start GPS vertical error(Meter),7.2300000190734863 % Start GPS number of satellites,5 % End latitude,49.2887446 % End longitude,-123.0858515 % End altitude,-18.700000762939453 % End GPS horizontal error(Meter),13.380000114440918 % End GPS vertical error(Meter),15.359999656677246 % End GPS number of satellites,5 % Cast duration (Seconds),73.4 % 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 7.392 2.76867 4.27364 26.46 1469.55 1020.656 0.45 0.45 7.394 2.76998 4.27549 26.48 1469.58 1020.667 0.75 0.75 7.392 2.77024 4.27611 26.48 1469.58 1020.672 1.05 1.05 7.390 2.76979 4.27564 26.48 1469.57 1020.670 1.35 1.35 7.389 2.76994 4.27602 26.48 1469.58 1020.674 1.65 1.65 7.390 2.76941 4.27513 26.47 1469.58 1020.670 1.95 1.95 7.390 2.76941 4.27510 26.47 1469.58 1020.672 2.25 2.25 7.390 2.77041 4.27666 26.48 1469.60 1020.681 2.55 2.55 7.390 2.77025 4.27635 26.48 1469.60 1020.681 2.85 2.85 7.389 2.77159 4.27858 26.50 1469.62 1020.694 3.15 3.15 7.387 2.77260 4.28044 26.51 1469.63 1020.705 3.45 3.45 7.385 2.77285 4.28106 26.51 1469.63 1020.710 3.75 3.75 7.383 2.77265 4.28099 26.51 1469.63 1020.711 4.05 4.04 7.386 2.77318 4.28141 26.51 1469.65 1020.714 4.35 4.34 7.389 2.77437 4.28283 26.52 1469.68 1020.723 4.65 4.64 7.393 2.77498 4.28327 26.53 1469.70 1020.727 4.95 4.94 7.398 2.77514 4.28291 26.52 1469.73 1020.726 5.25 5.24 7.404 2.77684 4.28475 26.54 1469.77 1020.737 5.55 5.54 7.407 2.77846 4.28688 26.55 1469.80 1020.750 5.85 5.84 7.406 2.78033 4.28979 26.57 1469.83 1020.767 6.15 6.14 7.408 2.78204 4.29225 26.59 1469.86 1020.781 6.45 6.44 7.412 2.78364 4.29415 26.60 1469.90 1020.793 6.75 6.74 7.414 2.78397 4.29437 26.61 1469.92 1020.795 7.05 7.04 7.416 2.78466 4.29517 26.61 1469.94 1020.801 7.35 7.34 7.417 2.78479 4.29527 26.61 1469.95 1020.802 7.65 7.64 7.416 2.78544 4.29642 26.62 1469.96 1020.810 7.95 7.94 7.416 2.78667 4.29830 26.63 1469.98 1020.821 8.25 8.24 7.416 2.78698 4.29878 26.63 1469.99 1020.825 8.55 8.54 7.416 2.78874 4.30153 26.65 1470.01 1020.841 8.85 8.84 7.418 2.78882 4.30135 26.65 1470.03 1020.841 9.15 9.14 7.421 2.79014 4.30300 26.66 1470.06 1020.851 9.45 9.44 7.424 2.79140 4.30456 26.67 1470.09 1020.861 9.75 9.74 7.427 2.79193 4.30493 26.68 1470.11 1020.864 10.05 10.04 7.432 2.79284 4.30573 26.68 1470.14 1020.870 10.35 10.34 7.435 2.79404 4.30721 26.69 1470.17 1020.879 10.65 10.63 7.438 2.79472 4.30776 26.70 1470.19 1020.883 10.95 10.94 7.442 2.79719 4.31103 26.72 1470.24 1020.902 11.25 11.23 7.448 2.80199 4.31761 26.77 1470.33 1020.938 11.55 11.53 7.452 2.80489 4.32157 26.79 1470.38 1020.961 11.85 11.83 7.453 2.80718 4.32497 26.82 1470.42 1020.980 12.15 12.13 7.455 2.80746 4.32518 26.82 1470.43 1020.983 12.45 12.43 7.456 2.80885 4.32717 26.83 1470.46 1020.995 12.75 12.73 7.459 2.81137 4.33065 26.86 1470.50 1021.015 13.05 13.03 7.463 2.81354 4.33342 26.88 1470.55 1021.031 13.35 13.33 7.466 2.81269 4.33176 26.86 1470.55 1021.023 13.65 13.63 7.467 2.81429 4.33404 26.88 1470.58 1021.036 13.95 13.93 7.469 2.81577 4.33604 26.89 1470.61 1021.048 14.25 14.23 7.473 2.81551 4.33519 26.89 1470.62 1021.045 14.55 14.53 7.473 2.81652 4.33670 26.90 1470.64 1021.055 14.85 14.83 7.475 2.81720 4.33752 26.90 1470.66 1021.060 15.15 15.13 7.478 2.81790 4.33814 26.91 1470.68 1021.065 15.45 15.43 7.481 2.81886 4.33924 26.92 1470.71 1021.072 15.75 15.73 7.482 2.81904 4.33940 26.92 1470.72 1021.074 16.05 16.03 7.483 2.81949 4.34001 26.92 1470.73 1021.079 16.35 16.33 7.483 2.82049 4.34145 26.93 1470.75 1021.088 16.65 16.63 7.484 2.82036 4.34115 26.93 1470.76 1021.087 16.95 16.93 7.484 2.82082 4.34187 26.93 1470.77 1021.092 17.25 17.23 7.484 2.82085 4.34185 26.93 1470.77 1021.094 17.55 17.52 7.485 2.82083 4.34180 26.93 1470.78 1021.095 17.85 17.82 7.485 2.82035 4.34102 26.93 1470.78 1021.092 18.15 18.12 7.487 2.82035 4.34078 26.93 1470.79 1021.092 18.45 18.42 7.487 2.82059 4.34114 26.93 1470.80 1021.095 18.75 18.72 7.486 2.82075 4.34145 26.93 1470.80 1021.098 19.05 19.02 7.486 2.82108 4.34198 26.93 1470.81 1021.102 19.35 19.32 7.486 2.82101 4.34188 26.93 1470.81 1021.103 19.65 19.62 7.486 2.82142 4.34248 26.94 1470.83 1021.107 19.95 19.92 7.488 2.82186 4.34294 26.94 1470.84 1021.111 20.25 20.22 7.487 2.82192 4.34313 26.94 1470.84 1021.113 20.55 20.52 7.488 2.82177 4.34278 26.94 1470.85 1021.113 20.85 20.82 7.488 2.82204 4.34318 26.94 1470.86 1021.116 21.15 21.12 7.488 2.82245 4.34380 26.95 1470.87 1021.121 21.45 21.42 7.488 2.82308 4.34480 26.95 1470.88 1021.127 21.75 21.72 7.488 2.82147 4.34229 26.94 1470.86 1021.115 22.05 22.02 7.488 2.82132 4.34211 26.93 1470.87 1021.116 22.35 22.32 7.487 2.82144 4.34239 26.94 1470.87 1021.118 22.65 22.62 7.487 2.82205 4.34337 26.94 1470.88 1021.125 22.95 22.91 7.488 2.82299 4.34473 26.95 1470.90 1021.134 23.25 23.21 7.489 2.82319 4.34481 26.95 1470.91 1021.135 23.55 23.51 7.492 2.82422 4.34606 26.96 1470.94 1021.143 23.85 23.81 7.495 2.82504 4.34695 26.97 1470.96 1021.149 24.15 24.11 7.497 2.82918 4.35293 27.01 1471.03 1021.183 24.45 24.41 7.500 2.83309 4.35864 27.05 1471.09 1021.214 24.75 24.71 7.503 2.83560 4.36212 27.07 1471.14 1021.234 25.05 25.01 7.508 2.83451 4.35977 27.06 1471.14 1021.223 25.35 25.31 7.511 2.83365 4.35793 27.05 1471.15 1021.214 25.65 25.61 7.515 2.83644 4.36174 27.07 1471.20 1021.236 25.95 25.91 7.517 2.83740 4.36292 27.08 1471.22 1021.244 26.25 26.21 7.521 2.83776 4.36300 27.08 1471.24 1021.245 26.55 26.51 7.531 2.83592 4.35884 27.05 1471.25 1021.224 26.85 26.81 7.533 2.84020 4.36514 27.10 1471.32 1021.259 27.15 27.11 7.525 2.84098 4.36734 27.11 1471.31 1021.272 27.45 27.41 7.522 2.85017 4.38192 27.21 1471.43 1021.352 27.75 27.71 7.533 2.85387 4.38606 27.24 1471.52 1021.375 28.05 28.01 7.550 2.85525 4.38598 27.24 1471.59 1021.376 28.35 28.30 7.559 2.85968 4.39149 27.28 1471.68 1021.407 28.65 28.61 7.566 2.86246 4.39479 27.30 1471.74 1021.425 28.95 28.90 7.574 2.86509 4.39781 27.32 1471.80 1021.443 29.25 29.20 7.580 2.86491 4.39671 27.32 1471.82 1021.438 29.55 29.50 7.584 2.86954 4.40327 27.36 1471.90 1021.475 29.85 29.80 7.591 2.87180 4.40576 27.38 1471.95 1021.489 30.04 29.99 7.599 2.87434 4.40868 27.40 1472.01 1021.505