*2019/08/26 15:30:33.89 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:58:24.000 END TIME : UTC 2017/03/03 18:58:58.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 174 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 51.98 2 Depth metres 0.15 51.87 3 Temperature 'deg C (ITS90)' 7.371 7.865 4 Conductivity S/m 2.68094 2.95982 5 Conductance:Specific S/m 4.14093 4.50321 6 Salinity PSS-78 25.56 28.08 7 Speed:Sound m/s 1468.34 1474.24 8 Density kg/m^3 1019.948 1022.102 $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 : 338 LATITUDE : 49 18.05915 N ! (deg min) LONGITUDE : 123 6.25928 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 21:30:18 174 174 HDREDIT2 3.1.1 2017/12/13 11:33:19 ? ? CALIB 12.0 2019/08/26 15:30:33 174 174 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:30:17 -HEADER EDITS: 2017/12/13 11:33:19 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_185824_mid % Cast time (UTC),2017-03-03 18:58:24 % Cast time (local),2017-03-03 18:58:24 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3009859 % Start longitude,-123.1043214 % Start altitude,-19.670000076293945 % Start GPS horizontal error(Meter),4.0100002288818359 % Start GPS vertical error(Meter),8.0200004577636719 % Start GPS number of satellites,7 % End latitude,49.3009065 % End longitude,-123.1051602 % End altitude,-15.090000152587891 % End GPS horizontal error(Meter),3.809999942779541 % End GPS vertical error(Meter),7.0500001907348633 % End GPS number of satellites,8 % Cast duration (Seconds),138.8 % 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 7.371 2.68094 4.14093 25.56 1468.34 1019.948 0.45 0.45 7.373 2.68259 4.14322 25.57 1468.38 1019.961 0.75 0.75 7.375 2.69190 4.15735 25.67 1468.51 1020.038 1.05 1.05 7.378 2.69394 4.16018 25.69 1468.55 1020.054 1.35 1.35 7.380 2.70071 4.17039 25.76 1468.64 1020.110 1.65 1.65 7.384 2.70297 4.17331 25.78 1468.69 1020.127 1.95 1.95 7.390 2.71273 4.18762 25.88 1468.84 1020.204 2.25 2.25 7.392 2.72334 4.20370 25.99 1468.99 1020.291 2.55 2.55 7.395 2.73193 4.21662 26.07 1469.12 1020.361 2.85 2.85 7.398 2.74244 4.23237 26.18 1469.27 1020.447 3.15 3.15 7.405 2.75096 4.24471 26.27 1469.40 1020.514 3.45 3.45 7.412 2.75529 4.25040 26.31 1469.48 1020.546 3.75 3.75 7.417 2.76093 4.25846 26.36 1469.58 1020.590 4.05 4.05 7.420 2.77357 4.27752 26.49 1469.76 1020.693 4.35 4.35 7.426 2.78033 4.28721 26.56 1469.87 1020.746 4.65 4.65 7.432 2.78290 4.29038 26.58 1469.92 1020.764 4.95 4.95 7.441 2.78819 4.29736 26.63 1470.02 1020.803 5.25 5.25 7.445 2.79051 4.30035 26.65 1470.07 1020.820 5.55 5.54 7.447 2.79142 4.30148 26.66 1470.09 1020.827 5.85 5.84 7.447 2.79243 4.30302 26.67 1470.11 1020.837 6.15 6.14 7.448 2.79181 4.30194 26.66 1470.11 1020.832 6.45 6.44 7.449 2.79267 4.30314 26.67 1470.13 1020.840 6.75 6.74 7.451 2.79288 4.30327 26.67 1470.14 1020.842 7.05 7.04 7.453 2.79339 4.30375 26.67 1470.16 1020.846 7.35 7.34 7.458 2.79431 4.30456 26.68 1470.19 1020.851 7.65 7.64 7.465 2.79611 4.30629 26.69 1470.24 1020.862 7.95 7.94 7.475 2.79720 4.30669 26.70 1470.29 1020.865 8.25 8.24 7.486 2.79756 4.30580 26.69 1470.33 1020.861 8.55 8.54 7.504 2.80672 4.31757 26.77 1470.51 1020.925 8.85 8.84 7.512 2.81658 4.33155 26.87 1470.67 1021.002 9.15 9.14 7.518 2.82009 4.33624 26.90 1470.73 1021.028 9.45 9.44 7.524 2.82284 4.33956 26.93 1470.79 1021.047 9.75 9.74 7.533 2.82540 4.34242 26.95 1470.86 1021.063 10.05 10.04 7.540 2.82762 4.34482 26.96 1470.91 1021.077 10.35 10.34 7.554 2.83282 4.35099 27.01 1471.03 1021.112 10.65 10.64 7.569 2.84356 4.36546 27.11 1471.21 1021.190 10.95 10.94 7.579 2.85324 4.37892 27.20 1471.38 1021.264 11.25 11.23 7.593 2.85977 4.38713 27.26 1471.50 1021.309 11.55 11.54 7.609 2.86639 4.39504 27.32 1471.64 1021.352 11.85 11.83 7.623 2.86973 4.39828 27.34 1471.73 1021.371 12.15 12.13 7.633 2.87232 4.40094 27.36 1471.80 1021.386 12.45 12.43 7.643 2.87771 4.40779 27.41 1471.90 1021.424 12.75 12.73 7.651 2.88062 4.41130 27.43 1471.97 1021.444 13.05 13.03 7.656 2.88335 4.41468 27.46 1472.03 1021.463 13.35 13.33 7.664 2.88954 4.42307 27.52 1472.13 1021.510 13.65 13.63 7.677 2.89236 4.42572 27.54 1472.21 1021.525 13.95 13.93 7.686 2.89484 4.42827 27.55 1472.28 1021.540 14.25 14.23 7.691 2.89517 4.42807 27.55 1472.30 1021.540 14.55 14.53 7.696 2.89889 4.43305 27.59 1472.37 1021.568 14.85 14.83 7.705 2.90102 4.43509 27.60 1472.43 1021.580 15.15 15.13 7.713 2.90354 4.43787 27.62 1472.49 1021.596 15.45 15.43 7.717 2.90467 4.43906 27.63 1472.52 1021.604 15.75 15.73 7.720 2.90549 4.43992 27.64 1472.54 1021.609 16.05 16.02 7.723 2.90445 4.43794 27.63 1472.54 1021.600 16.35 16.32 7.726 2.90830 4.44342 27.66 1472.60 1021.631 16.65 16.62 7.728 2.91090 4.44708 27.69 1472.65 1021.652 16.95 16.92 7.731 2.91175 4.44798 27.70 1472.67 1021.658 17.25 17.22 7.734 2.91174 4.44763 27.69 1472.69 1021.657 17.55 17.52 7.735 2.91294 4.44931 27.70 1472.71 1021.667 17.85 17.82 7.736 2.91290 4.44907 27.70 1472.72 1021.667 18.15 18.12 7.736 2.91221 4.44805 27.70 1472.71 1021.663 18.45 18.42 7.734 2.91234 4.44843 27.70 1472.71 1021.667 18.75 18.72 7.735 2.91265 4.44887 27.70 1472.72 1021.670 19.05 19.02 7.736 2.91545 4.45301 27.73 1472.77 1021.694 19.35 19.32 7.739 2.91582 4.45311 27.73 1472.79 1021.696 19.65 19.62 7.743 2.91701 4.45438 27.74 1472.82 1021.704 19.95 19.92 7.745 2.91700 4.45409 27.74 1472.83 1021.703 20.25 20.22 7.748 2.91792 4.45515 27.75 1472.85 1021.710 20.55 20.52 7.750 2.91754 4.45431 27.74 1472.86 1021.707 20.85 20.82 7.755 2.91797 4.45428 27.74 1472.88 1021.708 21.15 21.11 7.762 2.91965 4.45592 27.75 1472.93 1021.718 21.45 21.41 7.763 2.92346 4.46153 27.79 1472.99 1021.749 21.75 21.71 7.765 2.92346 4.46121 27.79 1473.00 1021.749 22.05 22.01 7.767 2.92454 4.46257 27.80 1473.03 1021.758 22.35 22.31 7.769 2.92525 4.46349 27.80 1473.04 1021.764 22.65 22.61 7.770 2.92753 4.46677 27.83 1473.08 1021.783 22.95 22.91 7.773 2.92875 4.46829 27.84 1473.11 1021.792 23.25 23.21 7.773 2.92787 4.46686 27.83 1473.11 1021.786 23.55 23.51 7.775 2.92706 4.46542 27.82 1473.10 1021.779 23.85 23.81 7.777 2.92787 4.46637 27.83 1473.12 1021.786 24.15 24.11 7.780 2.93021 4.46948 27.85 1473.17 1021.804 24.45 24.41 7.783 2.93122 4.47059 27.86 1473.20 1021.811 24.75 24.70 7.787 2.93232 4.47182 27.86 1473.22 1021.819 25.05 25.00 7.790 2.93352 4.47323 27.87 1473.25 1021.827 25.35 25.30 7.795 2.93450 4.47398 27.88 1473.29 1021.833 25.65 25.60 7.800 2.93491 4.47390 27.88 1473.31 1021.833 25.95 25.90 7.804 2.93791 4.47802 27.91 1473.37 1021.857 26.25 26.20 7.809 2.93754 4.47672 27.90 1473.38 1021.851 26.55 26.50 7.812 2.94189 4.48290 27.94 1473.45 1021.885 26.85 26.80 7.815 2.94300 4.48421 27.95 1473.48 1021.894 27.15 27.10 7.816 2.94460 4.48657 27.97 1473.51 1021.908 27.45 27.40 7.820 2.94499 4.48657 27.97 1473.53 1021.909 27.75 27.70 7.822 2.94499 4.48635 27.97 1473.54 1021.909 28.05 28.00 7.821 2.94521 4.48675 27.97 1473.54 1021.912 28.35 28.30 7.821 2.94469 4.48601 27.96 1473.54 1021.910 28.65 28.60 7.822 2.94529 4.48674 27.97 1473.56 1021.915 28.95 28.89 7.825 2.94485 4.48567 27.96 1473.56 1021.910 29.25 29.19 7.827 2.94447 4.48490 27.96 1473.57 1021.907 29.55 29.49 7.829 2.94611 4.48703 27.97 1473.60 1021.920 29.85 29.79 7.833 2.94778 4.48901 27.99 1473.64 1021.932 30.15 30.09 7.835 2.94763 4.48857 27.98 1473.65 1021.931 30.45 30.39 7.837 2.94827 4.48921 27.99 1473.67 1021.936 30.75 30.69 7.838 2.94938 4.49085 28.00 1473.69 1021.946 31.05 30.99 7.839 2.95023 4.49193 28.01 1473.71 1021.953 31.35 31.29 7.840 2.95057 4.49234 28.01 1473.72 1021.956 31.65 31.59 7.841 2.95102 4.49290 28.01 1473.73 1021.961 31.95 31.89 7.842 2.95096 4.49263 28.01 1473.74 1021.960 32.25 32.19 7.843 2.95096 4.49254 28.01 1473.75 1021.961 32.55 32.49 7.843 2.95129 4.49301 28.02 1473.76 1021.965 32.85 32.78 7.844 2.95076 4.49213 28.01 1473.76 1021.962 33.15 33.09 7.844 2.95140 4.49302 28.01 1473.77 1021.968 33.45 33.38 7.844 2.95142 4.49312 28.02 1473.78 1021.969 33.75 33.68 7.845 2.95138 4.49289 28.01 1473.78 1021.969 34.05 33.98 7.845 2.95141 4.49292 28.01 1473.79 1021.971 34.35 34.28 7.845 2.95159 4.49321 28.02 1473.79 1021.974 34.65 34.58 7.845 2.95161 4.49328 28.02 1473.80 1021.975 34.95 34.88 7.845 2.95141 4.49297 28.01 1473.80 1021.975 35.25 35.18 7.845 2.95154 4.49317 28.02 1473.81 1021.977 35.55 35.48 7.845 2.95162 4.49330 28.02 1473.81 1021.979 35.85 35.78 7.845 2.95211 4.49399 28.02 1473.83 1021.984 36.15 36.08 7.845 2.95152 4.49314 28.01 1473.82 1021.981 36.45 36.38 7.845 2.95181 4.49360 28.02 1473.83 1021.985 36.75 36.68 7.845 2.95186 4.49359 28.02 1473.84 1021.986 37.05 36.98 7.845 2.95173 4.49339 28.02 1473.84 1021.986 37.35 37.27 7.846 2.95179 4.49344 28.02 1473.85 1021.988 37.65 37.57 7.846 2.95187 4.49354 28.02 1473.85 1021.990 37.95 37.87 7.846 2.95188 4.49358 28.02 1473.86 1021.991 38.25 38.17 7.845 2.95160 4.49317 28.01 1473.86 1021.990 38.55 38.47 7.846 2.95213 4.49395 28.02 1473.87 1021.996 38.85 38.77 7.846 2.95187 4.49344 28.02 1473.87 1021.994 39.15 39.07 7.847 2.95194 4.49352 28.02 1473.88 1021.996 39.45 39.37 7.845 2.95236 4.49432 28.02 1473.89 1022.002 39.75 39.67 7.846 2.95214 4.49394 28.02 1473.89 1022.001 40.05 39.97 7.845 2.95199 4.49378 28.02 1473.89 1022.001 40.35 40.27 7.846 2.95142 4.49287 28.01 1473.89 1021.998 40.65 40.57 7.846 2.95201 4.49366 28.02 1473.90 1022.003 40.95 40.87 7.847 2.95201 4.49359 28.02 1473.91 1022.004 41.25 41.16 7.846 2.95197 4.49365 28.02 1473.91 1022.006 41.55 41.46 7.846 2.95250 4.49442 28.02 1473.92 1022.011 41.85 41.76 7.846 2.95270 4.49479 28.02 1473.93 1022.014 42.15 42.06 7.847 2.95236 4.49412 28.02 1473.93 1022.012 42.45 42.36 7.847 2.95268 4.49464 28.02 1473.94 1022.016 42.75 42.66 7.847 2.95260 4.49454 28.02 1473.94 1022.017 43.05 42.96 7.847 2.95237 4.49416 28.02 1473.95 1022.016 43.35 43.26 7.847 2.95254 4.49440 28.02 1473.95 1022.019 43.65 43.56 7.847 2.95269 4.49461 28.02 1473.96 1022.021 43.95 43.86 7.847 2.95264 4.49452 28.02 1473.97 1022.022 44.25 44.16 7.848 2.95298 4.49485 28.02 1473.98 1022.025 44.55 44.46 7.849 2.95296 4.49474 28.02 1473.99 1022.026 44.85 44.76 7.849 2.95342 4.49548 28.03 1473.99 1022.031 45.15 45.05 7.850 2.95346 4.49532 28.03 1474.01 1022.031 45.45 45.35 7.850 2.95382 4.49595 28.03 1474.01 1022.036 45.75 45.65 7.851 2.95339 4.49517 28.02 1474.02 1022.033 46.05 45.95 7.850 2.95380 4.49583 28.03 1474.02 1022.038 46.35 46.25 7.851 2.95402 4.49616 28.03 1474.03 1022.041 46.65 46.55 7.851 2.95444 4.49680 28.04 1474.04 1022.046 46.95 46.85 7.851 2.95421 4.49644 28.03 1474.04 1022.045 47.25 47.15 7.851 2.95433 4.49659 28.03 1474.05 1022.047 47.55 47.45 7.851 2.95491 4.49745 28.04 1474.06 1022.053 47.85 47.75 7.852 2.95525 4.49784 28.04 1474.08 1022.057 48.15 48.05 7.854 2.95534 4.49770 28.04 1474.09 1022.057 48.45 48.34 7.855 2.95619 4.49886 28.05 1474.11 1022.065 48.75 48.65 7.855 2.95637 4.49917 28.05 1474.11 1022.068 49.05 48.94 7.856 2.95571 4.49801 28.04 1474.11 1022.063 49.35 49.24 7.857 2.95649 4.49906 28.05 1474.13 1022.069 49.65 49.54 7.857 2.95636 4.49888 28.05 1474.13 1022.070 49.95 49.84 7.857 2.95635 4.49878 28.05 1474.14 1022.071 50.25 50.14 7.857 2.95681 4.49950 28.05 1474.15 1022.076 50.55 50.44 7.860 2.95768 4.50047 28.06 1474.17 1022.082 50.85 50.74 7.861 2.95820 4.50114 28.07 1474.19 1022.087 51.15 51.04 7.861 2.95780 4.50042 28.06 1474.19 1022.084 51.45 51.34 7.861 2.95926 4.50263 28.08 1474.21 1022.098 51.75 51.64 7.863 2.95982 4.50321 28.08 1474.23 1022.102 51.98 51.87 7.865 2.95980 4.50299 28.08 1474.24 1022.102