*2019/08/26 15:30:32.47 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 00:18:27.000 END TIME : UTC 2017/03/03 00:18:52.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 126 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.76 2 Depth metres 0.15 37.7 3 Temperature 'deg C (ITS90)' 7.281 7.836 4 Conductivity S/m 2.74952 2.95674 5 Conductance:Specific S/m 4.25858 4.50227 6 Salinity PSS-78 26.35 28.07 7 Speed:Sound m/s 1468.97 1473.89 8 Density kg/m^3 1020.578 1022.037 $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 : 315 LATITUDE : 49 17.62077 N ! (deg min) LONGITUDE : 123 5.07448 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 21:07:21 126 126 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:32 126 126 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:07:20 -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_001827 % Cast time (UTC),2017-03-03 00:18:27 % Cast time (local),2017-03-03 00:18:27 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2936795 % Start longitude,-123.0845746 % Start altitude,-11.609999656677246 % Start GPS horizontal error(Meter),13.470000267028809 % Start GPS vertical error(Meter),15.720000267028809 % Start GPS number of satellites,5 % End latitude,49.2934945 % End longitude,-123.0846178 % End altitude,-19.110000610351562 % End GPS horizontal error(Meter),13.3100004196167 % End GPS vertical error(Meter),15.4399995803833 % End GPS number of satellites,5 % Cast duration (Seconds),92.4 % 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 7.281 2.74952 4.25874 26.35 1468.97 1020.578 0.45 0.45 7.293 2.75044 4.25858 26.35 1469.02 1020.578 0.75 0.75 7.304 2.75202 4.25955 26.35 1469.08 1020.584 1.05 1.05 7.314 2.75245 4.25897 26.35 1469.12 1020.582 1.35 1.35 7.321 2.75294 4.25868 26.35 1469.15 1020.582 1.65 1.65 7.330 2.75386 4.25898 26.35 1469.19 1020.585 1.95 1.95 7.327 2.75687 4.26399 26.39 1469.23 1020.613 2.25 2.25 7.328 2.75694 4.26395 26.39 1469.24 1020.614 2.55 2.55 7.333 2.75995 4.26804 26.41 1469.30 1020.637 2.85 2.85 7.346 2.76206 4.26962 26.43 1469.37 1020.647 3.15 3.15 7.363 2.76434 4.27078 26.44 1469.45 1020.654 3.45 3.45 7.377 2.76547 4.27076 26.44 1469.51 1020.655 3.75 3.75 7.394 2.76811 4.27255 26.45 1469.60 1020.666 4.05 4.04 7.412 2.76984 4.27292 26.46 1469.68 1020.669 4.35 4.34 7.420 2.77078 4.27328 26.46 1469.72 1020.672 4.65 4.64 7.427 2.77182 4.27399 26.47 1469.76 1020.677 4.95 4.94 7.433 2.77272 4.27448 26.47 1469.80 1020.680 5.25 5.24 7.439 2.77608 4.27890 26.50 1469.87 1020.705 5.55 5.54 7.446 2.77959 4.28342 26.54 1469.94 1020.731 5.85 5.84 7.453 2.78125 4.28502 26.55 1469.98 1020.740 6.15 6.14 7.459 2.78346 4.28765 26.57 1470.04 1020.756 6.45 6.44 7.462 2.78501 4.28962 26.58 1470.07 1020.767 6.75 6.74 7.464 2.78741 4.29312 26.60 1470.11 1020.788 7.05 7.04 7.467 2.79035 4.29726 26.63 1470.16 1020.811 7.35 7.34 7.469 2.79125 4.29828 26.64 1470.19 1020.818 7.65 7.64 7.473 2.79174 4.29859 26.64 1470.21 1020.820 7.95 7.94 7.475 2.79187 4.29850 26.64 1470.22 1020.821 8.25 8.24 7.475 2.79248 4.29937 26.65 1470.23 1020.827 8.55 8.54 7.476 2.79278 4.29976 26.65 1470.24 1020.831 8.85 8.84 7.476 2.79280 4.29978 26.65 1470.25 1020.832 9.15 9.14 7.477 2.79262 4.29944 26.65 1470.25 1020.831 9.45 9.44 7.476 2.79280 4.29972 26.65 1470.26 1020.834 9.75 9.74 7.477 2.79380 4.30117 26.66 1470.28 1020.843 10.05 10.04 7.476 2.79452 4.30243 26.67 1470.29 1020.851 10.35 10.34 7.477 2.79451 4.30233 26.67 1470.30 1020.852 10.65 10.64 7.477 2.79523 4.30339 26.67 1470.31 1020.859 10.95 10.94 7.478 2.79615 4.30475 26.68 1470.33 1020.868 11.25 11.23 7.477 2.79698 4.30604 26.69 1470.35 1020.876 11.55 11.54 7.477 2.79748 4.30687 26.70 1470.36 1020.882 11.85 11.83 7.476 2.79785 4.30757 26.70 1470.36 1020.887 12.15 12.13 7.474 2.79869 4.30909 26.71 1470.37 1020.896 12.45 12.43 7.473 2.79865 4.30925 26.71 1470.37 1020.898 12.75 12.73 7.473 2.79859 4.30915 26.71 1470.38 1020.899 13.05 13.03 7.471 2.79854 4.30935 26.71 1470.38 1020.902 13.35 13.33 7.469 2.79896 4.31022 26.72 1470.38 1020.907 13.65 13.63 7.467 2.80005 4.31214 26.73 1470.39 1020.919 13.95 13.93 7.465 2.80118 4.31415 26.74 1470.41 1020.931 14.25 14.23 7.464 2.80168 4.31503 26.75 1470.42 1020.937 14.55 14.53 7.464 2.80250 4.31631 26.76 1470.43 1020.945 14.85 14.83 7.463 2.80242 4.31628 26.76 1470.43 1020.947 15.15 15.13 7.463 2.80314 4.31749 26.77 1470.44 1020.954 15.45 15.43 7.462 2.80344 4.31801 26.77 1470.45 1020.958 15.75 15.73 7.461 2.80294 4.31739 26.77 1470.45 1020.956 16.05 16.03 7.461 2.80355 4.31834 26.77 1470.46 1020.963 16.35 16.33 7.461 2.80308 4.31760 26.77 1470.46 1020.960 16.65 16.63 7.460 2.80314 4.31784 26.77 1470.46 1020.963 16.95 16.93 7.460 2.80341 4.31820 26.77 1470.47 1020.966 17.25 17.23 7.462 2.80332 4.31789 26.77 1470.48 1020.966 17.55 17.52 7.464 2.80418 4.31895 26.77 1470.50 1020.973 17.85 17.82 7.465 2.80412 4.31866 26.77 1470.51 1020.972 18.15 18.12 7.468 2.80434 4.31868 26.77 1470.52 1020.974 18.45 18.42 7.469 2.80517 4.31982 26.78 1470.54 1020.981 18.75 18.72 7.468 2.80687 4.32251 26.80 1470.57 1020.997 19.05 19.02 7.468 2.80762 4.32367 26.81 1470.58 1021.004 19.35 19.32 7.469 2.81013 4.32747 26.83 1470.62 1021.026 19.65 19.62 7.470 2.81379 4.33293 26.87 1470.68 1021.056 19.95 19.92 7.472 2.82082 4.34346 26.94 1470.78 1021.114 20.25 20.22 7.475 2.82392 4.34786 26.97 1470.83 1021.139 20.55 20.52 7.479 2.82491 4.34879 26.98 1470.86 1021.145 20.85 20.82 7.485 2.82602 4.34972 26.99 1470.90 1021.151 21.15 21.12 7.493 2.82718 4.35044 26.99 1470.94 1021.156 21.45 21.42 7.496 2.83332 4.35946 27.05 1471.04 1021.206 21.75 21.72 7.498 2.83401 4.36029 27.06 1471.06 1021.212 22.05 22.02 7.500 2.83729 4.36503 27.09 1471.11 1021.238 22.35 22.32 7.506 2.83810 4.36546 27.10 1471.14 1021.242 22.65 22.62 7.511 2.83819 4.36501 27.09 1471.16 1021.241 22.95 22.92 7.514 2.83842 4.36493 27.09 1471.18 1021.241 23.25 23.22 7.516 2.83826 4.36440 27.09 1471.19 1021.240 23.55 23.52 7.518 2.83857 4.36466 27.09 1471.20 1021.243 23.85 23.82 7.518 2.83945 4.36591 27.10 1471.22 1021.251 24.15 24.11 7.518 2.83865 4.36468 27.09 1471.21 1021.245 24.45 24.41 7.522 2.83855 4.36403 27.09 1471.23 1021.243 24.75 24.71 7.527 2.83941 4.36475 27.09 1471.26 1021.248 25.05 25.01 7.534 2.83940 4.36378 27.09 1471.28 1021.244 25.35 25.31 7.543 2.84046 4.36410 27.09 1471.33 1021.247 25.65 25.61 7.554 2.84564 4.37060 27.14 1471.44 1021.283 25.95 25.91 7.562 2.85841 4.38921 27.27 1471.63 1021.384 26.25 26.21 7.581 2.86950 4.40368 27.37 1471.83 1021.463 26.55 26.51 7.596 2.87786 4.41449 27.44 1471.99 1021.522 26.85 26.81 7.608 2.88134 4.41818 27.47 1472.08 1021.543 27.15 27.11 7.618 2.88477 4.42208 27.50 1472.15 1021.565 27.45 27.41 7.623 2.88594 4.42313 27.51 1472.19 1021.571 27.75 27.71 7.629 2.88738 4.42461 27.52 1472.23 1021.581 28.05 28.01 7.636 2.88862 4.42555 27.52 1472.27 1021.587 28.35 28.31 7.645 2.88890 4.42478 27.52 1472.31 1021.584 28.65 28.61 7.653 2.89204 4.42847 27.55 1472.38 1021.605 28.95 28.90 7.661 2.89446 4.43105 27.57 1472.44 1021.620 29.25 29.20 7.669 2.89571 4.43194 27.57 1472.48 1021.626 29.55 29.50 7.675 2.89948 4.43684 27.61 1472.55 1021.653 29.85 29.80 7.680 2.90322 4.44194 27.64 1472.62 1021.682 30.15 30.10 7.682 2.90500 4.44429 27.66 1472.65 1021.696 30.45 30.40 7.687 2.90590 4.44509 27.66 1472.68 1021.701 30.75 30.70 7.691 2.90645 4.44540 27.67 1472.71 1021.704 31.05 31.00 7.697 2.90735 4.44590 27.67 1472.74 1021.708 31.35 31.30 7.700 2.90786 4.44630 27.67 1472.76 1021.711 31.65 31.60 7.701 2.90780 4.44599 27.67 1472.77 1021.711 31.95 31.90 7.704 2.90846 4.44669 27.68 1472.79 1021.716 32.25 32.20 7.705 2.90846 4.44654 27.68 1472.80 1021.716 32.55 32.50 7.706 2.90934 4.44770 27.68 1472.82 1021.724 32.85 32.80 7.708 2.90989 4.44822 27.69 1472.84 1021.728 33.15 33.09 7.713 2.91083 4.44901 27.69 1472.87 1021.733 33.45 33.39 7.719 2.91211 4.45021 27.70 1472.90 1021.741 33.75 33.69 7.720 2.91256 4.45075 27.71 1472.92 1021.745 34.05 33.99 7.718 2.91295 4.45156 27.71 1472.92 1021.751 34.35 34.29 7.716 2.91271 4.45145 27.71 1472.92 1021.752 34.65 34.59 7.716 2.91487 4.45485 27.73 1472.95 1021.771 34.95 34.89 7.718 2.91598 4.45619 27.74 1472.98 1021.780 35.25 35.19 7.727 2.91724 4.45695 27.75 1473.02 1021.785 35.55 35.49 7.734 2.92162 4.46263 27.79 1473.11 1021.817 35.85 35.79 7.742 2.93223 4.47773 27.89 1473.27 1021.899 36.15 36.09 7.757 2.93521 4.48026 27.91 1473.36 1021.914 36.45 36.39 7.769 2.93502 4.47832 27.90 1473.39 1021.904 36.75 36.69 7.779 2.93584 4.47817 27.90 1473.44 1021.905 37.05 36.98 7.790 2.94022 4.48336 27.94 1473.53 1021.934 37.35 37.28 7.810 2.95425 4.50212 28.07 1473.78 1022.036 37.76 37.70 7.836 2.95674 4.50227 28.07 1473.89 1022.037