*2019/08/26 15:30:11.77 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/19 00:39:59.000 END TIME : UTC 2016/10/19 00:40:12.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 67 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.98 2 Depth metres 0.15 20.04 3 Temperature 'deg C (ITS90)' 10.545 10.74 4 Conductivity S/m 0.38076 3.26303 5 Conductance:Specific S/m 0.5347 4.5887 6 Salinity PSS-78 2.84 29.02 7 Speed:Sound m/s 1453.18 1484.91 8 Density kg/m^3 1001.87 1022.281 $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 : 407 LATITUDE : 49 7.54988 N ! (deg min) LONGITUDE : 123 14.99318 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 22:39:60 67 67 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:11 67 67 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:39:59 -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 15:30:11 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_20161019_003959 % Cast time (UTC),2016-10-19 00:39:59 % Cast time (local),2016-10-19 00:39:59 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1258314 % Start longitude,-123.2498863 % Start altitude,-18.440000534057617 % Start GPS horizontal error(Meter),5.5 % Start GPS vertical error(Meter),5.190000057220459 % Start GPS number of satellites,5 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),89 % 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 10.605 0.38076 0.53470 2.84 1453.18 1001.870 0.45 0.46 10.607 0.38997 0.54760 2.92 1453.29 1001.928 0.75 0.76 10.607 0.39572 0.55567 2.96 1453.35 1001.965 1.05 1.07 10.609 0.40134 0.56353 3.00 1453.41 1002.001 1.35 1.37 10.608 0.40622 0.57042 3.04 1453.46 1002.033 1.65 1.68 10.610 0.41026 0.57605 3.08 1453.51 1002.059 1.95 1.98 10.613 0.46446 0.65210 3.51 1454.06 1002.398 2.25 2.29 10.619 0.56410 0.79184 4.32 1455.08 1003.028 2.55 2.59 10.624 0.68289 0.95847 5.30 1456.29 1003.791 2.85 2.90 10.633 0.77469 1.08704 6.07 1457.26 1004.387 3.15 3.20 10.648 0.87744 1.23071 6.93 1458.37 1005.059 3.45 3.51 10.681 1.03709 1.45327 8.29 1460.15 1006.111 3.75 3.81 10.704 1.17317 1.64290 9.46 1461.66 1007.020 4.05 4.11 10.720 1.24824 1.74726 10.12 1462.51 1007.525 4.35 4.42 10.732 1.40692 1.96871 11.51 1464.24 1008.607 4.65 4.72 10.740 1.51690 2.12216 12.49 1465.45 1009.364 4.95 5.02 10.735 1.54198 2.15752 12.71 1465.71 1009.541 5.25 5.33 10.711 1.61122 2.25594 13.34 1466.38 1010.033 5.55 5.63 10.691 1.96450 2.75213 16.57 1470.18 1012.535 5.85 5.93 10.654 2.13806 2.99835 18.19 1472.00 1013.799 6.15 6.23 10.624 2.22997 3.12990 19.06 1472.94 1014.481 6.45 6.53 10.615 2.31373 3.24823 19.85 1473.86 1015.095 6.75 6.83 10.608 2.40079 3.37111 20.67 1474.83 1015.737 7.05 7.14 10.609 2.43486 3.41889 20.99 1475.22 1015.987 7.35 7.44 10.610 2.50250 3.51371 21.63 1476.00 1016.484 7.65 7.74 10.611 2.57669 3.61783 22.34 1476.86 1017.033 7.95 8.04 10.613 2.62801 3.68973 22.83 1477.45 1017.413 8.25 8.34 10.614 2.65339 3.72519 23.07 1477.76 1017.601 8.55 8.64 10.617 2.67642 3.75727 23.29 1478.03 1017.772 8.85 8.94 10.618 2.69201 3.77901 23.43 1478.22 1017.888 9.15 9.24 10.618 2.71708 3.81417 23.67 1478.51 1018.075 9.45 9.54 10.618 2.73747 3.84288 23.87 1478.75 1018.229 9.75 9.84 10.616 2.76222 3.87779 24.11 1479.04 1018.416 10.05 10.14 10.608 2.85699 4.01177 25.03 1480.12 1019.131 10.35 10.44 10.594 2.96640 4.16694 26.09 1481.36 1019.964 10.65 10.74 10.585 3.08473 4.33434 27.25 1482.73 1020.867 10.95 11.04 10.585 3.16439 4.44628 28.03 1483.67 1021.474 11.25 11.34 10.576 3.21896 4.52404 28.57 1484.30 1021.898 11.55 11.64 10.564 3.24368 4.56039 28.82 1484.56 1022.098 11.85 11.94 10.555 3.25024 4.57076 28.90 1484.62 1022.156 12.15 12.24 10.549 3.25148 4.57320 28.91 1484.63 1022.171 12.45 12.54 10.546 3.25493 4.57847 28.95 1484.66 1022.201 12.75 12.84 10.545 3.25753 4.58224 28.98 1484.70 1022.223 13.05 13.13 10.545 3.25694 4.58138 28.97 1484.69 1022.220 13.35 13.43 10.547 3.25844 4.58334 28.98 1484.72 1022.232 13.65 13.73 10.548 3.25921 4.58425 28.99 1484.74 1022.238 13.95 14.03 10.550 3.25928 4.58411 28.99 1484.75 1022.238 14.25 14.33 10.549 3.25898 4.58376 28.99 1484.75 1022.237 14.55 14.63 10.549 3.25944 4.58438 28.99 1484.76 1022.242 14.85 14.93 10.549 3.26043 4.58584 29.00 1484.77 1022.251 15.15 15.23 10.550 3.26062 4.58593 29.00 1484.79 1022.253 15.45 15.53 10.551 3.26184 4.58755 29.01 1484.81 1022.263 15.75 15.83 10.555 3.26109 4.58600 29.00 1484.81 1022.256 16.05 16.13 10.557 3.26066 4.58508 29.00 1484.82 1022.252 16.35 16.43 10.556 3.26094 4.58567 29.00 1484.82 1022.256 16.65 16.72 10.555 3.26115 4.58611 29.00 1484.83 1022.260 16.95 17.02 10.553 3.26198 4.58755 29.01 1484.84 1022.269 17.25 17.32 10.552 3.26248 4.58830 29.02 1484.85 1022.275 17.55 17.62 10.553 3.26288 4.58870 29.02 1484.86 1022.278 17.85 17.92 10.555 3.26303 4.58866 29.02 1484.87 1022.279 18.15 18.22 10.558 3.26214 4.58706 29.01 1484.87 1022.271 18.45 18.52 10.558 3.26176 4.58651 29.00 1484.87 1022.270 18.75 18.82 10.557 3.26217 4.58718 29.01 1484.88 1022.275 19.05 19.12 10.557 3.26095 4.58547 29.00 1484.87 1022.267 19.35 19.42 10.556 3.26110 4.58585 29.00 1484.87 1022.270 19.65 19.72 10.558 3.26135 4.58598 29.00 1484.88 1022.272 19.98 20.04 10.559 3.26256 4.58747 29.01 1484.91 1022.281