*2019/08/26 15:30:11.80 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/19 16:35:33.000 END TIME : UTC 2016/10/19 16:35:44.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 57 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 17.02 2 Depth metres 0.15 17.12 3 Temperature 'deg C (ITS90)' 10.545 10.631 4 Conductivity S/m 0.12741 3.14298 5 Conductance:Specific S/m 0.17915 4.42095 6 Salinity PSS-78 0.9 27.85 7 Speed:Sound m/s 1450.61 1483.42 8 Density kg/m^3 1000.355 1021.361 $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 : 408 LATITUDE : 49 6.84029 N ! (deg min) LONGITUDE : 123 10.73672 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 22:41:05 57 57 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:11 57 57 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:41:05 -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_163533 % Cast time (UTC),2016-10-19 16:35:33 % Cast time (local),2016-10-19 16:35:33 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1140049 % Start longitude,-123.1789454 % Start altitude,-20.440000534057617 % Start GPS horizontal error(Meter),1.9500000476837158 % Start GPS vertical error(Meter),3.2000000476837158 % Start GPS number of satellites,7 % End latitude,49.1138369 % End longitude,-123.1788781 % End altitude,-20.790000915527344 % End GPS horizontal error(Meter),3.4600000381469727 % End GPS vertical error(Meter),6.6700000762939453 % End GPS number of satellites,7 % Cast duration (Seconds),77.2 % 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 10.560 0.12741 0.17915 0.90 1450.61 1000.355 0.45 0.46 10.568 0.14238 0.20015 1.01 1450.78 1000.442 0.75 0.76 10.563 0.15380 0.21623 1.09 1450.88 1000.510 1.05 1.07 10.567 0.17106 0.24047 1.22 1451.06 1000.612 1.35 1.38 10.571 0.19604 0.27556 1.41 1451.31 1000.761 1.65 1.68 10.577 0.23136 0.32515 1.68 1451.67 1000.971 1.95 1.99 10.583 0.27773 0.39026 2.04 1452.13 1001.251 2.25 2.29 10.582 0.33483 0.47051 2.48 1452.68 1001.601 2.55 2.60 10.581 0.38785 0.54503 2.90 1453.20 1001.929 2.85 2.90 10.575 0.53363 0.75000 4.08 1454.62 1002.846 3.15 3.21 10.575 0.67756 0.95229 5.26 1456.07 1003.770 3.45 3.51 10.581 0.92043 1.29344 7.31 1458.58 1005.362 3.75 3.82 10.590 1.05815 1.48657 8.49 1460.05 1006.280 4.05 4.12 10.597 1.11037 1.55965 8.95 1460.63 1006.631 4.35 4.42 10.603 1.20921 1.69820 9.81 1461.69 1007.300 4.65 4.73 10.604 1.33840 1.87955 10.94 1463.08 1008.184 4.95 5.03 10.603 1.46766 2.06113 12.09 1464.46 1009.077 5.25 5.33 10.606 1.68702 2.36900 14.07 1466.85 1010.608 5.55 5.63 10.605 1.82473 2.56246 15.32 1468.36 1011.582 5.85 5.94 10.608 1.86394 2.61729 15.68 1468.81 1011.860 6.15 6.24 10.616 1.89894 2.66589 16.00 1469.22 1012.107 6.45 6.54 10.622 1.93980 2.72279 16.37 1469.70 1012.396 6.75 6.84 10.628 1.98107 2.78022 16.75 1470.18 1012.689 7.05 7.15 10.631 2.02958 2.84802 17.19 1470.74 1013.036 7.35 7.45 10.629 2.11003 2.96108 17.94 1471.63 1013.616 7.65 7.75 10.628 2.20824 3.09897 18.85 1472.73 1014.327 7.95 8.05 10.624 2.25328 3.16259 19.28 1473.23 1014.658 8.25 8.35 10.619 2.29436 3.22066 19.66 1473.68 1014.960 8.55 8.65 10.621 2.35042 3.29923 20.19 1474.32 1015.369 8.85 8.95 10.625 2.48403 3.48632 21.45 1475.86 1016.346 9.15 9.26 10.631 2.58816 3.63186 22.43 1477.07 1017.111 9.45 9.55 10.628 2.64541 3.71253 22.98 1477.72 1017.538 9.75 9.86 10.617 2.75204 3.86337 24.01 1478.92 1018.339 10.05 10.16 10.606 2.84872 4.00035 24.95 1480.02 1019.070 10.35 10.46 10.600 2.93980 4.12893 25.83 1481.07 1019.760 10.65 10.76 10.589 2.98884 4.19910 26.32 1481.61 1020.138 10.95 11.06 10.581 3.07573 4.32211 27.17 1482.62 1020.803 11.25 11.36 10.578 3.08414 4.33429 27.25 1482.71 1020.870 11.55 11.65 10.574 3.09665 4.35247 27.38 1482.85 1020.970 11.85 11.95 10.563 3.10597 4.36682 27.48 1482.94 1021.049 12.15 12.25 10.557 3.11355 4.37826 27.55 1483.01 1021.113 12.45 12.55 10.553 3.12596 4.39625 27.68 1483.15 1021.212 12.75 12.85 10.551 3.13047 4.40285 27.72 1483.21 1021.249 13.05 13.15 10.549 3.13180 4.40485 27.74 1483.22 1021.261 13.35 13.45 10.548 3.13378 4.40777 27.76 1483.25 1021.278 13.65 13.75 10.548 3.13481 4.40924 27.77 1483.27 1021.288 13.95 14.05 10.548 3.13712 4.41257 27.79 1483.30 1021.307 14.25 14.35 10.547 3.13961 4.41610 27.82 1483.33 1021.327 14.55 14.65 10.547 3.14092 4.41803 27.83 1483.35 1021.339 14.85 14.95 10.545 3.14159 4.41912 27.84 1483.36 1021.346 15.15 15.25 10.546 3.14220 4.41989 27.84 1483.37 1021.352 15.45 15.55 10.546 3.14161 4.41903 27.84 1483.37 1021.348 15.75 15.85 10.547 3.14105 4.41812 27.83 1483.37 1021.345 16.05 16.15 10.546 3.14298 4.42095 27.85 1483.39 1021.361 16.35 16.45 10.548 3.14172 4.41899 27.84 1483.39 1021.352 16.65 16.75 10.549 3.14204 4.41927 27.84 1483.40 1021.355 17.02 17.12 10.552 3.14261 4.41972 27.84 1483.42 1021.358