*2019/08/26 15:30:10.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/07/18 19:10:45.000 END TIME : UTC 2016/07/18 19:10:57.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 63 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.75 2 Depth metres 0.15 18.71 3 Temperature 'deg C (ITS90)' 11.874 12.697 4 Conductivity S/m 3.39459 3.40175 5 Conductance:Specific S/m 4.51063 4.60311 6 Salinity PSS-78 28.68 29.25 7 Speed:Sound m/s 1489.84 1491.9 8 Density kg/m^3 1021.619 1022.239 $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 : 382 LATITUDE : 48 46.10223 N ! (deg min) LONGITUDE : 123 33.71253 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 22:14:41 63 63 HDREDIT2 3.1.1 2017/12/13 11:31:13 ? ? CALIB 12.0 2019/08/26 15:30:10 63 63 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:14:40 -HEADER EDITS: 2017/12/13 11:31:13 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_20160718_191045 % Cast time (UTC),2016-07-18 19:10:45 % Cast time (local),2016-07-18 19:10:45 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,48.7683705 % Start longitude,-123.5618755 % Start altitude,-25.909999847412109 % Start GPS horizontal error(Meter),2.6700000762939453 % Start GPS vertical error(Meter),3.440000057220459 % Start GPS number of satellites,6 % End latitude,48.7686563 % End longitude,-123.5618561 % End altitude,-36.270000457763672 % End GPS horizontal error(Meter),16.219999313354492 % End GPS vertical error(Meter),15.960000038146973 % End GPS number of satellites,7 % Cast duration (Seconds),73.4 % 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 12.436 3.40093 4.54233 28.88 1491.04 1021.766 0.45 0.45 12.386 3.40062 4.54795 28.92 1490.91 1021.804 0.75 0.75 12.356 3.40071 4.55171 28.94 1490.84 1021.829 1.05 1.05 12.350 3.39995 4.55148 28.94 1490.82 1021.830 1.35 1.35 12.335 3.40017 4.55357 28.95 1490.79 1021.844 1.65 1.65 12.335 3.40057 4.55414 28.96 1490.80 1021.849 1.95 1.95 12.380 3.40038 4.54836 28.92 1490.92 1021.813 2.25 2.25 12.439 3.40089 4.54191 28.88 1491.08 1021.773 2.55 2.54 12.468 3.40059 4.53797 28.86 1491.15 1021.749 2.85 2.84 12.484 3.40080 4.53637 28.84 1491.20 1021.740 3.15 3.14 12.474 3.40055 4.53717 28.85 1491.18 1021.747 3.45 3.44 12.458 3.40076 4.53944 28.86 1491.14 1021.762 3.75 3.74 12.425 3.40042 4.54299 28.89 1491.06 1021.787 4.05 4.04 12.389 3.40022 4.54714 28.91 1490.97 1021.815 4.35 4.34 12.354 3.39947 4.55038 28.93 1490.88 1021.838 4.65 4.64 12.348 3.39824 4.54949 28.93 1490.85 1021.835 4.95 4.94 12.322 3.39808 4.55243 28.94 1490.79 1021.855 5.25 5.24 12.307 3.39746 4.55338 28.95 1490.75 1021.863 5.55 5.54 12.302 3.39725 4.55367 28.95 1490.74 1021.866 5.85 5.84 12.298 3.39793 4.55517 28.96 1490.74 1021.876 6.15 6.14 12.313 3.39744 4.55258 28.94 1490.78 1021.862 6.45 6.43 12.317 3.39744 4.55208 28.94 1490.80 1021.860 6.75 6.73 12.309 3.39799 4.55391 28.95 1490.79 1021.872 7.05 7.03 12.319 3.39767 4.55225 28.94 1490.81 1021.863 7.35 7.33 12.337 3.39743 4.54972 28.93 1490.86 1021.849 7.65 7.63 12.369 3.39829 4.54689 28.91 1490.96 1021.831 7.95 7.93 12.386 3.39814 4.54463 28.89 1491.00 1021.818 8.25 8.23 12.393 3.39820 4.54389 28.89 1491.03 1021.814 8.55 8.53 12.435 3.39821 4.53881 28.86 1491.14 1021.783 8.85 8.83 12.463 3.39954 4.53725 28.85 1491.23 1021.772 9.15 9.13 12.490 3.40020 4.53481 28.83 1491.31 1021.757 9.45 9.43 12.527 3.39947 4.52934 28.80 1491.40 1021.724 9.75 9.73 12.581 3.39948 4.52289 28.76 1491.54 1021.684 10.05 10.03 12.617 3.40025 4.51952 28.73 1491.64 1021.663 10.35 10.33 12.645 3.40051 4.51653 28.72 1491.72 1021.644 10.65 10.62 12.654 3.40073 4.51579 28.71 1491.75 1021.641 10.95 10.93 12.663 3.40082 4.51487 28.71 1491.78 1021.636 11.25 11.22 12.673 3.40092 4.51370 28.70 1491.81 1021.629 11.55 11.52 12.657 3.40043 4.51502 28.71 1491.77 1021.640 11.85 11.82 12.641 3.40072 4.51736 28.72 1491.74 1021.656 12.15 12.12 12.635 3.40119 4.51867 28.73 1491.73 1021.665 12.45 12.42 12.652 3.40109 4.51649 28.72 1491.78 1021.652 12.75 12.72 12.674 3.40098 4.51369 28.70 1491.84 1021.636 13.05 13.02 12.688 3.40150 4.51269 28.69 1491.88 1021.630 13.35 13.32 12.697 3.40072 4.51063 28.68 1491.90 1021.619 13.65 13.62 12.687 3.40057 4.51160 28.68 1491.88 1021.626 13.95 13.92 12.685 3.40087 4.51218 28.69 1491.88 1021.631 14.25 14.22 12.674 3.40175 4.51476 28.70 1491.87 1021.648 14.55 14.52 12.636 3.39983 4.51671 28.71 1491.76 1021.664 14.85 14.82 12.576 3.39811 4.52160 28.75 1491.59 1021.699 15.15 15.12 12.470 3.40063 4.53776 28.85 1491.36 1021.801 15.45 15.41 12.374 3.39703 4.54467 28.89 1491.08 1021.851 15.75 15.71 12.222 3.39681 4.56289 29.00 1490.70 1021.969 16.05 16.01 12.161 3.39685 4.57048 29.05 1490.55 1022.019 16.35 16.31 12.171 3.39739 4.56997 29.05 1490.58 1022.016 16.65 16.61 12.195 3.39620 4.56543 29.02 1490.64 1021.990 16.95 16.91 12.204 3.39569 4.56355 29.01 1490.66 1021.980 17.25 17.21 12.151 3.39688 4.57167 29.06 1490.54 1022.031 17.55 17.51 12.168 3.39528 4.56742 29.03 1490.57 1022.007 17.85 17.81 12.085 3.39489 4.57712 29.09 1490.36 1022.071 18.15 18.11 11.984 3.39459 4.58931 29.17 1490.11 1022.150 18.45 18.41 11.909 3.39472 4.59881 29.23 1489.92 1022.211 18.75 18.71 11.874 3.39472 4.60311 29.25 1489.84 1022.239