*2019/08/26 15:30:10.63 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/19 00:53:07.000 END TIME : UTC 2016/07/19 00:53:21.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 71 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 21.15 2 Depth metres 0.15 21.12 3 Temperature 'deg C (ITS90)' 13.631 16.277 4 Conductivity S/m 3.43436 3.51083 5 Conductance:Specific S/m 4.25277 4.44624 6 Salinity PSS-78 27.1 28.3 7 Speed:Sound m/s 1494.73 1501.56 8 Density kg/m^3 1019.62 1021.18 $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 : 2016-98 AGENCY : Canadian Hydrographic Service COUNTRY : Canada PROJECT : CHS CTD Data Acquisition SCIENTIST : Dangerfield N. *LOCATION EVENT NUMBER : 388 LATITUDE : 48 46.10762 N ! (deg min) LONGITUDE : 123 33.70949 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 2017/12/08 22:20:47 71 71 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:10 71 71 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:20:47 -HEADER EDITS: 2017/12/13 11:31:14 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 15:30:10 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_20160719_005307 % Cast time (UTC),2016-07-19 00:53:07 % Cast time (local),2016-07-19 00:53:07 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7684604 % Start longitude,-123.5618249 % Start altitude,-21.1299991607666 % Start GPS horizontal error(Meter),2.8399999141693115 % Start GPS vertical error(Meter),4.179999828338623 % Start GPS number of satellites,5 % End latitude,48.7681385 % End longitude,-123.5621365 % End altitude,-16.399999618530273 % End GPS horizontal error(Meter),4.6700000762939453 % End GPS vertical error(Meter),6.6399998664855957 % End GPS number of satellites,5 % Cast duration (Seconds),83.2 % 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 16.277 3.51083 4.25277 27.10 1501.56 1019.620 0.45 0.45 16.111 3.50924 4.26803 27.20 1501.16 1019.734 0.75 0.75 15.964 3.50519 4.27842 27.26 1500.77 1019.817 1.05 1.05 15.881 3.50229 4.28356 27.29 1500.55 1019.861 1.35 1.35 15.756 3.50083 4.29492 27.37 1500.25 1019.945 1.65 1.65 15.616 3.49937 4.30792 27.45 1499.90 1020.041 1.95 1.95 15.576 3.49357 4.30497 27.43 1499.76 1020.033 2.25 2.25 15.549 3.49009 4.30352 27.42 1499.66 1020.031 2.55 2.55 15.495 3.48822 4.30702 27.44 1499.52 1020.060 2.85 2.85 15.426 3.48507 4.31039 27.46 1499.33 1020.091 3.15 3.15 15.296 3.48426 4.32329 27.54 1499.01 1020.184 3.45 3.45 15.172 3.47742 4.32821 27.57 1498.65 1020.232 3.75 3.75 15.086 3.46892 4.32689 27.55 1498.36 1020.241 4.05 4.05 14.959 3.46332 4.33357 27.59 1498.00 1020.298 4.35 4.35 14.830 3.46238 4.34643 27.68 1497.68 1020.390 4.65 4.65 14.722 3.46082 4.35631 27.74 1497.41 1020.462 4.95 4.95 14.648 3.45747 4.36016 27.76 1497.20 1020.495 5.25 5.25 14.576 3.45531 4.36543 27.80 1497.01 1020.536 5.55 5.55 14.495 3.45354 4.37215 27.84 1496.80 1020.586 5.85 5.85 14.418 3.45196 4.37870 27.88 1496.60 1020.635 6.15 6.14 14.379 3.45087 4.38160 27.90 1496.50 1020.658 6.45 6.45 14.338 3.45009 4.38515 27.92 1496.39 1020.684 6.75 6.75 14.279 3.44886 4.39026 27.95 1496.24 1020.722 7.05 7.04 14.216 3.44668 4.39449 27.98 1496.07 1020.756 7.35 7.34 14.151 3.44481 4.39937 28.01 1495.90 1020.793 7.65 7.64 14.093 3.44292 4.40356 28.03 1495.74 1020.826 7.95 7.94 14.064 3.44192 4.40547 28.04 1495.66 1020.842 8.25 8.24 14.039 3.44071 4.40679 28.05 1495.59 1020.854 8.55 8.54 14.017 3.43968 4.40793 28.06 1495.53 1020.864 8.85 8.84 13.995 3.43733 4.40739 28.05 1495.46 1020.866 9.15 9.14 13.959 3.43676 4.41071 28.07 1495.37 1020.890 9.45 9.44 13.938 3.43653 4.41283 28.09 1495.32 1020.906 9.75 9.74 13.915 3.43578 4.41449 28.09 1495.26 1020.920 10.05 10.04 13.888 3.43589 4.41769 28.12 1495.20 1020.942 10.35 10.34 13.870 3.43537 4.41906 28.12 1495.15 1020.953 10.65 10.64 13.857 3.43539 4.42061 28.13 1495.12 1020.965 10.95 10.94 13.849 3.43537 4.42146 28.14 1495.11 1020.972 11.25 11.24 13.839 3.43590 4.42332 28.15 1495.10 1020.985 11.55 11.54 13.826 3.43505 4.42359 28.15 1495.06 1020.989 11.85 11.84 13.810 3.43497 4.42536 28.16 1495.03 1021.002 12.15 12.14 13.801 3.43528 4.42677 28.17 1495.01 1021.013 12.45 12.44 13.794 3.43543 4.42776 28.18 1495.00 1021.020 12.75 12.74 13.786 3.43513 4.42828 28.18 1494.98 1021.025 13.05 13.04 13.783 3.43514 4.42868 28.18 1494.98 1021.029 13.35 13.34 13.778 3.43590 4.43027 28.20 1494.98 1021.040 13.65 13.63 13.771 3.43643 4.43176 28.20 1494.97 1021.050 13.95 13.93 13.765 3.43610 4.43193 28.21 1494.96 1021.053 14.25 14.23 13.755 3.43666 4.43389 28.22 1494.94 1021.067 14.55 14.53 13.746 3.43645 4.43455 28.22 1494.93 1021.073 14.85 14.83 13.735 3.43657 4.43602 28.23 1494.90 1021.084 15.15 15.13 13.724 3.43620 4.43684 28.24 1494.88 1021.091 15.45 15.43 13.712 3.43574 4.43758 28.24 1494.85 1021.098 15.75 15.73 13.706 3.43555 4.43806 28.24 1494.84 1021.103 16.05 16.03 13.698 3.43555 4.43891 28.25 1494.82 1021.110 16.35 16.33 13.689 3.43578 4.44029 28.26 1494.81 1021.120 16.65 16.63 13.683 3.43595 4.44111 28.26 1494.80 1021.126 16.95 16.93 13.680 3.43617 4.44176 28.27 1494.80 1021.131 17.25 17.23 13.680 3.43555 4.44097 28.26 1494.80 1021.128 17.55 17.53 13.675 3.43511 4.44094 28.26 1494.79 1021.130 17.85 17.83 13.669 3.43571 4.44249 28.27 1494.78 1021.141 18.15 18.13 13.661 3.43534 4.44292 28.27 1494.76 1021.145 18.45 18.43 13.656 3.43516 4.44321 28.28 1494.75 1021.149 18.75 18.73 13.650 3.43472 4.44341 28.28 1494.74 1021.152 19.05 19.03 13.652 3.43499 4.44346 28.28 1494.75 1021.153 19.35 19.32 13.652 3.43454 4.44295 28.27 1494.75 1021.152 19.65 19.62 13.643 3.43436 4.44368 28.28 1494.73 1021.158 19.95 19.92 13.643 3.43453 4.44395 28.28 1494.74 1021.161 20.25 20.22 13.643 3.43445 4.44384 28.28 1494.74 1021.162 20.55 20.52 13.637 3.43443 4.44447 28.28 1494.73 1021.167 20.85 20.82 13.631 3.43503 4.44591 28.29 1494.73 1021.177 21.15 21.12 13.632 3.43536 4.44624 28.30 1494.74 1021.180