*2019/08/26 15:30:11.84 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/19 17:13:23.000 END TIME : UTC 2016/10/19 17:13:35.400 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 18.87 2 Depth metres 0.15 18.99 3 Temperature 'deg C (ITS90)' 10.521 10.656 4 Conductivity S/m 0.3551E-01 3.02024 5 Conductance:Specific S/m 0.498E-01 4.25102 6 Salinity PSS-78 0.24 26.67 7 Speed:Sound m/s 1450.1 1481.92 8 Density kg/m^3 999.829 1020.456 $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 : 409 LATITUDE : 49 6.45181 N ! (deg min) LONGITUDE : 123 8.51724 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 22:42:03 63 63 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:11 63 63 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:42:02 -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_171323 % Cast time (UTC),2016-10-19 17:13:23 % Cast time (local),2016-10-19 17:13:23 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1075301 % Start longitude,-123.141954 % Start altitude,-20.409999847412109 % Start GPS horizontal error(Meter),2.0399999618530273 % Start GPS vertical error(Meter),3.2400000095367432 % Start GPS number of satellites,7 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),74.6 % 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 10.651 0.03551 0.04980 0.24 1450.14 999.829 0.45 0.46 10.644 0.03566 0.05002 0.24 1450.12 999.832 0.75 0.77 10.629 0.03869 0.05430 0.26 1450.10 999.851 1.05 1.07 10.617 0.05192 0.07289 0.35 1450.17 999.926 1.35 1.38 10.610 0.07943 0.11153 0.55 1450.39 1000.081 1.65 1.68 10.610 0.10073 0.14143 0.70 1450.59 1000.203 1.95 1.99 10.611 0.11073 0.15548 0.77 1450.68 1000.262 2.25 2.29 10.607 0.14907 0.20932 1.05 1451.02 1000.485 2.55 2.60 10.602 0.26534 0.37265 1.94 1452.10 1001.176 2.85 2.90 10.599 0.34143 0.47955 2.53 1452.82 1001.641 3.15 3.21 10.596 0.38394 0.53931 2.87 1453.23 1001.905 3.45 3.52 10.593 0.42596 0.59837 3.20 1453.63 1002.168 3.75 3.82 10.592 0.54703 0.76847 4.18 1454.83 1002.932 4.05 4.12 10.593 0.72743 1.02186 5.67 1456.65 1004.094 4.35 4.43 10.595 0.85778 1.20492 6.77 1458.00 1004.948 4.65 4.73 10.598 0.98689 1.38617 7.88 1459.35 1005.805 4.95 5.04 10.601 1.10309 1.54926 8.88 1460.58 1006.585 5.25 5.34 10.605 1.22420 1.71915 9.94 1461.87 1007.406 5.55 5.64 10.610 1.34601 1.88994 11.01 1463.19 1008.238 5.85 5.95 10.615 1.47149 2.06581 12.12 1464.56 1009.103 6.15 6.25 10.621 1.57760 2.21445 13.07 1465.73 1009.840 6.45 6.55 10.625 1.68979 2.37162 14.09 1466.97 1010.625 6.75 6.86 10.630 1.84119 2.58379 15.46 1468.64 1011.692 7.05 7.16 10.634 1.94212 2.72512 16.39 1469.77 1012.410 7.35 7.46 10.641 2.08471 2.92459 17.70 1471.38 1013.428 7.65 7.76 10.646 2.14134 3.00360 18.22 1472.04 1013.834 7.95 8.06 10.650 2.18191 3.06019 18.60 1472.51 1014.127 8.25 8.37 10.652 2.24547 3.14918 19.19 1473.23 1014.587 8.55 8.67 10.654 2.31950 3.25275 19.88 1474.08 1015.124 8.85 8.97 10.656 2.39880 3.36378 20.63 1474.98 1015.703 9.15 9.27 10.654 2.43318 3.41225 20.95 1475.37 1015.958 9.45 9.57 10.644 2.45927 3.44974 21.20 1475.64 1016.156 9.75 9.87 10.632 2.49527 3.50144 21.55 1476.02 1016.429 10.05 10.17 10.625 2.54935 3.57805 22.07 1476.62 1016.833 10.35 10.47 10.621 2.62127 3.67941 22.76 1477.44 1017.368 10.65 10.77 10.615 2.69604 3.78496 23.47 1478.29 1017.927 10.95 11.07 10.601 2.76701 3.88611 24.16 1479.07 1018.466 11.25 11.37 10.585 2.83405 3.98210 24.82 1479.81 1018.980 11.55 11.67 10.575 2.89066 4.06280 25.37 1480.44 1019.413 11.85 11.97 10.565 2.93574 4.12732 25.82 1480.94 1019.760 12.15 12.27 10.555 2.96338 4.16737 26.09 1481.24 1019.977 12.45 12.57 10.547 2.97670 4.18695 26.23 1481.38 1020.084 12.75 12.87 10.541 2.98544 4.19995 26.32 1481.47 1020.156 13.05 13.17 10.537 2.99675 4.21639 26.43 1481.60 1020.246 13.35 13.47 10.533 3.00347 4.22632 26.50 1481.67 1020.301 13.65 13.77 10.531 3.00527 4.22911 26.52 1481.69 1020.317 13.95 14.07 10.529 3.00760 4.23257 26.54 1481.72 1020.337 14.25 14.37 10.529 3.01223 4.23917 26.59 1481.78 1020.374 14.55 14.67 10.528 3.01315 4.24056 26.59 1481.79 1020.383 14.85 14.97 10.527 3.01420 4.24212 26.61 1481.81 1020.393 15.15 15.27 10.526 3.01596 4.24477 26.62 1481.83 1020.408 15.45 15.57 10.525 3.01641 4.24544 26.63 1481.84 1020.413 15.75 15.87 10.525 3.01553 4.24420 26.62 1481.83 1020.408 16.05 16.17 10.525 3.01729 4.24673 26.64 1481.86 1020.423 16.35 16.47 10.524 3.01726 4.24683 26.64 1481.86 1020.425 16.65 16.77 10.524 3.01730 4.24680 26.64 1481.86 1020.426 16.95 17.07 10.525 3.01782 4.24745 26.64 1481.88 1020.431 17.25 17.37 10.527 3.01786 4.24727 26.64 1481.89 1020.431 17.55 17.67 10.528 3.01749 4.24662 26.64 1481.89 1020.428 17.85 17.97 10.528 3.01946 4.24942 26.66 1481.92 1020.445 18.15 18.27 10.524 3.02024 4.25102 26.67 1481.92 1020.455 18.45 18.57 10.522 3.01988 4.25068 26.66 1481.92 1020.455 18.87 18.99 10.521 3.01965 4.25052 26.66 1481.92 1020.456