*2019/08/26 15:30:30.75 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/02 00:42:40.000 END TIME : UTC 2017/03/02 00:42:59.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 100 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.95 2 Depth metres 0.15 29.91 3 Temperature 'deg C (ITS90)' 7.5 7.521 4 Conductivity S/m 2.75457 2.78415 5 Conductance:Specific S/m 4.23579 4.2808 6 Salinity PSS-78 26.22 26.53 7 Speed:Sound m/s 1469.79 1470.43 8 Density kg/m^3 1020.466 1020.771 $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 : 290 LATITUDE : 49 17.69339 N ! (deg min) LONGITUDE : 123 0.64023 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 20:42:34 100 100 HDREDIT2 3.1.1 2017/12/13 11:33:17 ? ? CALIB 12.0 2019/08/26 15:30:30 100 100 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 20:42:34 -HEADER EDITS: 2017/12/13 11:33:17 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 15:30:30 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_20170302_004240 % Cast time (UTC),2017-03-02 00:42:40 % Cast time (local),2017-03-02 00:42:40 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2948898 % Start longitude,-123.0106705 % Start altitude,-23.3799991607666 % Start GPS horizontal error(Meter),1.5399999618530273 % Start GPS vertical error(Meter),2.2200000286102295 % Start GPS number of satellites,7 % End latitude,49.2951645 % End longitude,-123.0096028 % End altitude,-29.959999084472656 % End GPS horizontal error(Meter),4.880000114440918 % End GPS vertical error(Meter),7.9800000190734863 % End GPS number of satellites,7 % Cast duration (Seconds),84.6 % 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 7.519 2.78415 4.28080 26.53 1470.13 1020.692 0.45 0.45 7.521 2.78307 4.27887 26.52 1470.12 1020.683 0.75 0.75 7.520 2.77730 4.27014 26.46 1470.05 1020.638 1.05 1.05 7.518 2.77603 4.26842 26.44 1470.03 1020.630 1.35 1.35 7.516 2.77422 4.26595 26.43 1470.01 1020.618 1.65 1.65 7.517 2.76877 4.25744 26.37 1469.94 1020.574 1.95 1.95 7.516 2.76242 4.24782 26.30 1469.86 1020.523 2.25 2.25 7.517 2.75704 4.23940 26.25 1469.80 1020.480 2.55 2.55 7.517 2.75733 4.23982 26.25 1469.81 1020.483 2.85 2.85 7.518 2.75705 4.23923 26.24 1469.82 1020.481 3.15 3.15 7.518 2.75535 4.23666 26.23 1469.80 1020.469 3.45 3.45 7.515 2.75457 4.23579 26.22 1469.79 1020.466 3.75 3.75 7.514 2.75686 4.23954 26.25 1469.81 1020.487 4.05 4.04 7.513 2.75858 4.24222 26.26 1469.84 1020.503 4.35 4.34 7.511 2.75888 4.24302 26.27 1469.84 1020.508 4.65 4.64 7.510 2.76079 4.24605 26.29 1469.87 1020.526 4.95 4.94 7.508 2.76290 4.24962 26.31 1469.89 1020.546 5.25 5.24 7.506 2.76474 4.25265 26.33 1469.92 1020.564 5.55 5.54 7.506 2.76620 4.25485 26.35 1469.94 1020.577 5.85 5.84 7.507 2.76678 4.25568 26.35 1469.96 1020.582 6.15 6.14 7.506 2.76736 4.25663 26.36 1469.97 1020.589 6.45 6.44 7.506 2.76798 4.25771 26.37 1469.98 1020.596 6.75 6.74 7.506 2.76716 4.25645 26.36 1469.97 1020.591 7.05 7.04 7.505 2.76755 4.25705 26.36 1469.98 1020.595 7.35 7.34 7.506 2.76880 4.25892 26.38 1470.00 1020.606 7.65 7.64 7.509 2.76998 4.26037 26.39 1470.03 1020.615 7.95 7.94 7.509 2.77009 4.26046 26.39 1470.04 1020.617 8.25 8.24 7.507 2.76980 4.26027 26.38 1470.03 1020.617 8.55 8.54 7.506 2.77037 4.26127 26.39 1470.04 1020.624 8.85 8.84 7.506 2.77000 4.26071 26.39 1470.04 1020.622 9.15 9.14 7.507 2.77087 4.26202 26.40 1470.06 1020.631 9.45 9.44 7.508 2.77174 4.26319 26.40 1470.08 1020.638 9.75 9.74 7.506 2.77192 4.26366 26.41 1470.08 1020.642 10.05 10.04 7.506 2.77178 4.26352 26.41 1470.08 1020.643 10.35 10.34 7.505 2.77248 4.26469 26.41 1470.10 1020.650 10.65 10.64 7.505 2.77265 4.26498 26.41 1470.10 1020.653 10.95 10.94 7.504 2.77208 4.26418 26.41 1470.10 1020.650 11.25 11.24 7.504 2.77188 4.26390 26.41 1470.10 1020.650 11.55 11.54 7.504 2.77187 4.26389 26.41 1470.10 1020.651 11.85 11.84 7.503 2.77219 4.26453 26.41 1470.11 1020.656 12.15 12.13 7.503 2.77195 4.26413 26.41 1470.11 1020.655 12.45 12.44 7.504 2.77189 4.26388 26.41 1470.12 1020.655 12.75 12.73 7.504 2.77195 4.26402 26.41 1470.12 1020.657 13.05 13.03 7.503 2.77305 4.26579 26.42 1470.14 1020.668 13.35 13.33 7.503 2.77508 4.26899 26.44 1470.17 1020.686 13.65 13.63 7.503 2.77583 4.27018 26.45 1470.18 1020.694 13.95 13.93 7.502 2.77590 4.27030 26.45 1470.19 1020.696 14.25 14.23 7.503 2.77629 4.27080 26.45 1470.20 1020.700 14.55 14.53 7.503 2.77634 4.27084 26.45 1470.21 1020.701 14.85 14.83 7.505 2.77614 4.27040 26.45 1470.21 1020.700 15.15 15.13 7.505 2.77582 4.26980 26.45 1470.21 1020.698 15.45 15.43 7.506 2.77642 4.27065 26.45 1470.23 1020.704 15.75 15.73 7.506 2.77624 4.27040 26.45 1470.23 1020.704 16.05 16.03 7.507 2.77503 4.26837 26.44 1470.22 1020.695 16.35 16.33 7.508 2.77601 4.26979 26.45 1470.24 1020.703 16.65 16.63 7.506 2.77667 4.27101 26.45 1470.25 1020.711 16.95 16.93 7.505 2.77632 4.27055 26.45 1470.25 1020.710 17.25 17.23 7.505 2.77612 4.27036 26.45 1470.25 1020.710 17.55 17.53 7.506 2.77646 4.27071 26.45 1470.26 1020.714 17.85 17.83 7.506 2.77598 4.26997 26.45 1470.26 1020.711 18.15 18.13 7.506 2.77591 4.26984 26.45 1470.27 1020.711 18.45 18.43 7.506 2.77602 4.26995 26.45 1470.27 1020.713 18.75 18.73 7.506 2.77583 4.26967 26.44 1470.28 1020.713 19.05 19.03 7.506 2.77646 4.27066 26.45 1470.29 1020.720 19.35 19.33 7.504 2.77667 4.27121 26.45 1470.29 1020.724 19.65 19.63 7.503 2.77667 4.27143 26.45 1470.29 1020.727 19.95 19.93 7.501 2.77686 4.27193 26.46 1470.29 1020.731 20.25 20.23 7.501 2.77728 4.27261 26.46 1470.30 1020.736 20.55 20.52 7.502 2.77740 4.27269 26.46 1470.31 1020.737 20.85 20.82 7.501 2.77758 4.27310 26.47 1470.32 1020.741 21.15 21.12 7.500 2.77727 4.27275 26.46 1470.31 1020.740 21.45 21.42 7.500 2.77657 4.27166 26.46 1470.31 1020.736 21.75 21.72 7.501 2.77734 4.27271 26.46 1470.33 1020.743 22.05 22.02 7.502 2.77734 4.27263 26.46 1470.33 1020.743 22.35 22.32 7.504 2.77716 4.27208 26.46 1470.34 1020.742 22.65 22.62 7.506 2.77766 4.27259 26.46 1470.36 1020.746 22.95 22.92 7.506 2.77786 4.27282 26.46 1470.37 1020.748 23.25 23.22 7.505 2.77762 4.27259 26.46 1470.37 1020.748 23.55 23.52 7.502 2.77712 4.27218 26.46 1470.36 1020.747 23.85 23.82 7.502 2.77752 4.27290 26.46 1470.36 1020.753 24.15 24.12 7.501 2.77774 4.27339 26.47 1470.37 1020.757 24.45 24.42 7.501 2.77777 4.27333 26.47 1470.38 1020.758 24.75 24.72 7.501 2.77790 4.27353 26.47 1470.38 1020.760 25.05 25.02 7.501 2.77769 4.27324 26.46 1470.38 1020.760 25.35 25.32 7.501 2.77770 4.27322 26.46 1470.39 1020.761 25.65 25.62 7.501 2.77809 4.27380 26.47 1470.40 1020.765 25.95 25.92 7.502 2.77849 4.27436 26.47 1470.41 1020.770 26.25 26.22 7.503 2.77834 4.27394 26.47 1470.42 1020.769 26.55 26.52 7.505 2.77864 4.27423 26.47 1470.43 1020.771 26.85 26.82 7.507 2.77680 4.27108 26.45 1470.42 1020.756 27.15 27.12 7.509 2.77177 4.26306 26.40 1470.36 1020.714 27.45 27.41 7.507 2.77004 4.26067 26.38 1470.34 1020.703 27.75 27.71 7.505 2.76926 4.25970 26.37 1470.33 1020.699 28.05 28.02 7.504 2.76884 4.25923 26.37 1470.33 1020.698 28.35 28.31 7.506 2.76936 4.25983 26.37 1470.34 1020.702 28.65 28.61 7.510 2.76968 4.25978 26.37 1470.36 1020.703 28.95 28.91 7.513 2.76995 4.25978 26.37 1470.38 1020.704 29.25 29.21 7.514 2.76986 4.25947 26.37 1470.39 1020.704 29.55 29.51 7.513 2.77046 4.26054 26.38 1470.40 1020.711 29.95 29.91 7.515 2.77138 4.26173 26.39 1470.42 1020.719