*2019/08/26 15:30:36.85 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/21 23:53:53.000 END TIME : UTC 2017/06/21 23:54:18.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 129 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.51 2 Depth metres 0.15 38.48 3 Temperature 'deg C (ITS90)' 10.031 13.326 4 Conductivity S/m 2.512 3.11232 5 Conductance:Specific S/m 3.27713 4.442 6 Salinity PSS-78 20.2 27.93 7 Speed:Sound m/s 1481.56 1483.86 8 Density kg/m^3 1014.908 1021.609 $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 : 536 LATITUDE : 49 17.91463 N ! (deg min) LONGITUDE : 123 5.03536 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 2017/12/09 00:46:55 129 129 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 129 129 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:46:54 -HEADER EDITS: 2017/12/13 11:33:21 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 15:30:36 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_20170621_235353 % Cast time (UTC),2017-06-21 23:53:53 % Cast time (local),2017-06-21 23:53:53 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2985771 % Start longitude,-123.0839227 % Start altitude,-16.770000457763672 % Start GPS horizontal error(Meter),2.4200000762939453 % Start GPS vertical error(Meter),3.4500000476837158 % Start GPS number of satellites,7 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),93.6 % 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 13.326 2.51200 3.27713 20.20 1483.86 1014.908 0.45 0.45 13.300 2.51347 3.28127 20.23 1483.81 1014.934 0.75 0.75 13.247 2.51531 3.28826 20.28 1483.68 1014.979 1.05 1.05 13.181 2.51788 3.29732 20.33 1483.53 1015.037 1.35 1.36 13.113 2.52014 3.30614 20.39 1483.36 1015.093 1.65 1.66 13.050 2.52335 3.31585 20.45 1483.22 1015.153 1.95 1.96 13.045 2.52639 3.32028 20.48 1483.24 1015.178 2.25 2.26 13.035 2.53152 3.32785 20.53 1483.28 1015.220 2.55 2.56 13.008 2.53376 3.33315 20.57 1483.23 1015.253 2.85 2.86 12.942 2.54132 3.34895 20.67 1483.12 1015.345 3.15 3.16 12.844 2.54516 3.36267 20.76 1482.89 1015.431 3.45 3.46 12.790 2.54888 3.37245 20.82 1482.78 1015.490 3.75 3.77 12.741 2.55273 3.38187 20.88 1482.69 1015.547 4.05 4.07 12.683 2.55723 3.39306 20.95 1482.58 1015.614 4.35 4.37 12.621 2.56328 3.40675 21.04 1482.47 1015.695 4.65 4.67 12.539 2.57400 3.42841 21.19 1482.35 1015.820 4.95 4.97 12.423 2.58316 3.45129 21.33 1482.13 1015.955 5.25 5.27 12.285 2.58947 3.47256 21.47 1481.80 1016.084 5.55 5.57 12.126 2.61385 3.52023 21.78 1481.62 1016.354 5.85 5.87 12.036 2.67203 3.60734 22.37 1482.00 1016.824 6.15 6.17 11.969 2.70666 3.66077 22.73 1482.20 1017.115 6.45 6.47 11.840 2.78032 3.77352 23.49 1482.65 1017.727 6.75 6.77 11.668 2.80180 3.82049 23.80 1482.41 1017.996 7.05 7.08 11.518 2.81843 3.85901 24.05 1482.18 1018.218 7.35 7.38 11.380 2.84261 3.90685 24.37 1482.08 1018.488 7.65 7.67 11.270 2.86586 3.95075 24.66 1482.04 1018.734 7.95 7.97 11.184 2.88060 3.98046 24.86 1481.97 1018.902 8.25 8.28 11.104 2.89316 4.00670 25.04 1481.89 1019.051 8.55 8.57 11.034 2.90834 4.03559 25.23 1481.88 1019.213 8.85 8.88 10.982 2.91583 4.05182 25.34 1481.83 1019.306 9.15 9.18 10.945 2.92544 4.06933 25.45 1481.84 1019.405 9.45 9.47 10.907 2.93334 4.08465 25.55 1481.83 1019.491 9.75 9.78 10.863 2.93967 4.09843 25.65 1481.79 1019.570 10.05 10.07 10.804 2.94168 4.10802 25.71 1481.65 1019.628 10.35 10.38 10.746 2.94700 4.12210 25.80 1481.56 1019.710 10.65 10.68 10.693 2.96958 4.15987 26.05 1481.68 1019.919 10.95 10.97 10.633 3.00454 4.21593 26.44 1481.92 1020.226 11.25 11.28 10.564 3.01344 4.23667 26.57 1481.84 1020.345 11.55 11.57 10.510 3.02358 4.25732 26.71 1481.82 1020.462 11.85 11.87 10.466 3.02906 4.27043 26.80 1481.76 1020.537 12.15 12.17 10.430 3.03165 4.27839 26.85 1481.70 1020.584 12.45 12.47 10.407 3.03557 4.28662 26.90 1481.69 1020.632 12.75 12.77 10.390 3.03860 4.29297 26.95 1481.68 1020.669 13.05 13.07 10.375 3.04137 4.29877 26.98 1481.68 1020.702 13.35 13.37 10.363 3.04540 4.30588 27.03 1481.70 1020.743 13.65 13.67 10.350 3.04810 4.31129 27.07 1481.70 1020.774 13.95 13.97 10.338 3.04818 4.31286 27.08 1481.67 1020.785 14.25 14.27 10.324 3.04981 4.31691 27.10 1481.66 1020.809 14.55 14.57 10.310 3.05350 4.32390 27.15 1481.67 1020.849 14.85 14.87 10.298 3.05606 4.32890 27.18 1481.67 1020.879 15.15 15.17 10.287 3.05902 4.33447 27.22 1481.68 1020.911 15.45 15.47 10.277 3.06416 4.34303 27.28 1481.72 1020.959 15.75 15.77 10.263 3.06439 4.34501 27.29 1481.69 1020.972 16.05 16.07 10.245 3.06786 4.35219 27.34 1481.68 1021.013 16.35 16.37 10.227 3.07249 4.36097 27.40 1481.70 1021.064 16.65 16.67 10.213 3.07739 4.36970 27.46 1481.72 1021.113 16.95 16.97 10.202 3.08347 4.37965 27.52 1481.77 1021.169 17.25 17.27 10.190 3.08819 4.38784 27.58 1481.80 1021.215 17.55 17.57 10.177 3.09278 4.39605 27.64 1481.82 1021.262 17.85 17.86 10.166 3.09537 4.40113 27.67 1481.83 1021.291 18.15 18.16 10.154 3.09621 4.40374 27.69 1481.81 1021.308 18.45 18.46 10.145 3.09656 4.40537 27.70 1481.79 1021.318 18.75 18.76 10.139 3.09647 4.40606 27.70 1481.78 1021.324 19.05 19.06 10.136 3.09690 4.40698 27.71 1481.78 1021.330 19.35 19.36 10.133 3.09698 4.40747 27.71 1481.78 1021.335 19.65 19.66 10.132 3.09739 4.40826 27.71 1481.79 1021.340 19.95 19.96 10.129 3.09723 4.40835 27.71 1481.78 1021.342 20.25 20.26 10.126 3.09798 4.40975 27.73 1481.79 1021.351 20.55 20.56 10.125 3.09830 4.41034 27.73 1481.79 1021.356 20.85 20.86 10.122 3.09802 4.41032 27.73 1481.79 1021.357 21.15 21.16 10.119 3.09850 4.41137 27.73 1481.79 1021.364 21.45 21.46 10.117 3.09867 4.41188 27.74 1481.79 1021.369 21.75 21.76 10.115 3.10013 4.41427 27.75 1481.81 1021.383 22.05 22.06 10.110 3.10054 4.41541 27.76 1481.80 1021.391 22.35 22.36 10.104 3.10223 4.41866 27.78 1481.81 1021.410 22.65 22.66 10.097 3.10358 4.42150 27.80 1481.81 1021.427 22.95 22.95 10.090 3.10450 4.42357 27.82 1481.81 1021.440 23.25 23.25 10.087 3.10487 4.42452 27.82 1481.81 1021.447 23.55 23.55 10.084 3.10526 4.42542 27.83 1481.81 1021.453 23.85 23.85 10.082 3.10512 4.42556 27.83 1481.81 1021.455 24.15 24.15 10.079 3.10609 4.42724 27.84 1481.82 1021.466 24.45 24.45 10.080 3.10539 4.42617 27.83 1481.82 1021.461 24.75 24.75 10.079 3.10548 4.42640 27.83 1481.82 1021.464 25.05 25.05 10.078 3.10576 4.42691 27.84 1481.83 1021.468 25.35 25.35 10.077 3.10567 4.42698 27.84 1481.83 1021.470 25.65 25.65 10.076 3.10582 4.42733 27.84 1481.83 1021.473 25.95 25.95 10.073 3.10646 4.42854 27.85 1481.83 1021.481 26.25 26.25 10.071 3.10692 4.42947 27.85 1481.84 1021.488 26.55 26.55 10.069 3.10664 4.42938 27.85 1481.83 1021.489 26.85 26.85 10.065 3.10783 4.43153 27.87 1481.84 1021.502 27.15 27.15 10.061 3.10824 4.43265 27.87 1481.84 1021.509 27.45 27.45 10.058 3.10876 4.43377 27.88 1481.84 1021.517 27.75 27.75 10.055 3.10832 4.43347 27.88 1481.84 1021.517 28.05 28.05 10.054 3.10871 4.43417 27.88 1481.84 1021.522 28.35 28.34 10.053 3.10886 4.43450 27.89 1481.85 1021.525 28.65 28.64 10.053 3.10896 4.43463 27.89 1481.85 1021.527 28.95 28.94 10.054 3.10880 4.43435 27.88 1481.86 1021.527 29.25 29.24 10.053 3.10954 4.43553 27.89 1481.87 1021.535 29.55 29.54 10.051 3.11032 4.43688 27.90 1481.88 1021.543 29.85 29.84 10.050 3.11015 4.43678 27.90 1481.88 1021.544 30.15 30.14 10.050 3.11031 4.43694 27.90 1481.88 1021.546 30.45 30.44 10.049 3.11061 4.43747 27.91 1481.89 1021.550 30.75 30.74 10.049 3.11071 4.43771 27.91 1481.89 1021.553 31.05 31.04 10.048 3.11104 4.43824 27.91 1481.90 1021.557 31.35 31.34 10.047 3.11057 4.43766 27.91 1481.90 1021.555 31.65 31.64 10.046 3.11104 4.43854 27.91 1481.90 1021.562 31.95 31.94 10.045 3.11076 4.43820 27.91 1481.90 1021.561 32.25 32.24 10.045 3.11066 4.43806 27.91 1481.91 1021.562 32.55 32.53 10.044 3.11075 4.43831 27.91 1481.91 1021.564 32.85 32.83 10.042 3.11088 4.43875 27.91 1481.91 1021.568 33.15 33.13 10.043 3.11058 4.43829 27.91 1481.91 1021.567 33.45 33.43 10.042 3.11126 4.43927 27.92 1481.93 1021.573 33.75 33.73 10.043 3.11146 4.43947 27.92 1481.94 1021.576 34.05 34.03 10.044 3.11148 4.43942 27.92 1481.94 1021.577 34.35 34.33 10.044 3.11138 4.43925 27.91 1481.95 1021.577 34.65 34.63 10.044 3.11112 4.43889 27.91 1481.95 1021.576 34.95 34.93 10.046 3.11130 4.43890 27.91 1481.96 1021.578 35.25 35.23 10.046 3.11140 4.43901 27.91 1481.97 1021.579 35.55 35.53 10.046 3.11136 4.43900 27.91 1481.97 1021.581 35.85 35.83 10.043 3.11112 4.43895 27.91 1481.97 1021.582 36.15 36.13 10.041 3.11152 4.43989 27.92 1481.97 1021.588 36.45 36.43 10.037 3.11118 4.43991 27.92 1481.96 1021.590 36.75 36.73 10.036 3.11089 4.43961 27.92 1481.96 1021.590 37.05 37.02 10.036 3.11065 4.43922 27.91 1481.96 1021.589 37.35 37.33 10.038 3.11137 4.43997 27.92 1481.98 1021.594 37.65 37.62 10.037 3.11123 4.43995 27.92 1481.98 1021.595 37.95 37.92 10.033 3.11170 4.44107 27.93 1481.98 1021.603 38.25 38.22 10.033 3.11232 4.44200 27.93 1481.99 1021.609 38.51 38.48 10.031 3.11080 4.44010 27.92 1481.97 1021.600