*2019/08/26 15:30:11.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/19 18:09:10.000 END TIME : UTC 2016/10/19 18:09:22.400 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 18.65 2 Depth metres 0.15 18.82 3 Temperature 'deg C (ITS90)' 10.519 10.603 4 Conductivity S/m 0.2723E-01 2.58669 5 Conductance:Specific S/m 0.3824E-01 3.64056 6 Salinity PSS-78 0.18 22.48 7 Speed:Sound m/s 1449.87 1476.89 8 Density kg/m^3 999.789 1017.207 $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 : 411 LATITUDE : 49 6.98656 N ! (deg min) LONGITUDE : 123 4.96994 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 22:44:02 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 22:44:01 -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_180910 % Cast time (UTC),2016-10-19 18:09:10 % Cast time (local),2016-10-19 18:09:10 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1164426 % Start longitude,-123.0828324 % Start altitude,-16.040000915527344 % Start GPS horizontal error(Meter),4.8899998664855957 % Start GPS vertical error(Meter),4.2399997711181641 % Start GPS number of satellites,5 % End latitude,49.1163044 % End longitude,-123.0824273 % End altitude,-15.159999847412109 % End GPS horizontal error(Meter),521.52001953125 % End GPS vertical error(Meter),603.41998291015625 % End GPS number of satellites,3 % Cast duration (Seconds),79.2 % 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 10.603 0.02723 0.03824 0.18 1449.89 999.789 0.45 0.46 10.598 0.02723 0.03824 0.18 1449.87 999.791 0.75 0.77 10.591 0.03048 0.04282 0.20 1449.88 999.811 1.05 1.07 10.591 0.03124 0.04389 0.21 1449.89 999.817 1.35 1.38 10.592 0.03191 0.04483 0.21 1449.90 999.821 1.65 1.68 10.592 0.03875 0.05444 0.26 1449.97 999.860 1.95 1.99 10.598 0.04758 0.06683 0.32 1450.07 999.909 2.25 2.29 10.599 0.10345 0.14530 0.72 1450.58 1000.223 2.55 2.60 10.600 0.17777 0.24967 1.27 1451.27 1000.655 2.85 2.90 10.596 0.26400 0.37084 1.93 1452.07 1001.171 3.15 3.21 10.596 0.29639 0.41632 2.18 1452.38 1001.368 3.45 3.52 10.593 0.33380 0.46891 2.47 1452.74 1001.598 3.75 3.82 10.596 0.35536 0.49916 2.64 1452.96 1001.732 4.05 4.13 10.596 0.36893 0.51822 2.75 1453.09 1001.817 4.35 4.43 10.597 0.41197 0.57865 3.09 1453.53 1002.084 4.65 4.74 10.598 0.45446 0.63833 3.43 1453.95 1002.351 4.95 5.04 10.596 0.48716 0.68430 3.70 1454.27 1002.558 5.25 5.35 10.592 0.52997 0.74451 4.04 1454.68 1002.831 5.55 5.65 10.588 0.59918 0.84182 4.61 1455.36 1003.274 5.85 5.96 10.587 0.75132 1.05563 5.88 1456.90 1004.259 6.15 6.26 10.585 0.88531 1.24394 7.01 1458.27 1005.141 6.45 6.57 10.583 0.98147 1.37913 7.83 1459.27 1005.782 6.75 6.87 10.576 1.05308 1.48004 8.45 1460.00 1006.264 7.05 7.17 10.567 1.14573 1.61065 9.26 1460.94 1006.893 7.35 7.48 10.562 1.32798 1.86713 10.86 1462.86 1008.139 7.65 7.78 10.559 1.53106 2.15281 12.68 1465.04 1009.547 7.95 8.08 10.553 1.66434 2.34066 13.88 1466.47 1010.483 8.25 8.38 10.543 1.81927 2.55923 15.30 1468.15 1011.583 8.55 8.69 10.540 2.00362 2.81884 17.00 1470.18 1012.902 8.85 8.99 10.537 2.13116 2.99853 18.18 1471.60 1013.824 9.15 9.29 10.535 2.19127 3.08330 18.74 1472.27 1014.262 9.45 9.59 10.530 2.22311 3.12847 19.04 1472.62 1014.496 9.75 9.89 10.527 2.23699 3.14829 19.18 1472.78 1014.600 10.05 10.20 10.524 2.25289 3.17092 19.33 1472.95 1014.719 10.35 10.50 10.523 2.26124 3.18281 19.41 1473.05 1014.782 10.65 10.80 10.521 2.26475 3.18789 19.44 1473.09 1014.810 10.95 11.10 10.519 2.27452 3.20179 19.53 1473.20 1014.883 11.25 11.40 10.519 2.29384 3.22901 19.71 1473.42 1015.026 11.55 11.70 10.519 2.31608 3.26033 19.92 1473.67 1015.189 11.85 12.00 10.519 2.33454 3.28630 20.10 1473.89 1015.326 12.15 12.30 10.519 2.35823 3.31968 20.32 1474.16 1015.500 12.45 12.61 10.519 2.37279 3.34016 20.46 1474.33 1015.608 12.75 12.91 10.519 2.39415 3.37022 20.66 1474.58 1015.766 13.05 13.21 10.520 2.40787 3.38948 20.79 1474.74 1015.868 13.35 13.51 10.519 2.41814 3.40397 20.89 1474.86 1015.945 13.65 13.81 10.520 2.42150 3.40867 20.92 1474.91 1015.971 13.95 14.11 10.520 2.42819 3.41809 20.98 1474.99 1016.021 14.25 14.41 10.519 2.43692 3.43041 21.06 1475.09 1016.087 14.55 14.71 10.520 2.44408 3.44047 21.13 1475.18 1016.141 14.85 15.01 10.519 2.44879 3.44713 21.18 1475.24 1016.177 15.15 15.31 10.519 2.44982 3.44857 21.18 1475.25 1016.186 15.45 15.62 10.520 2.45464 3.45531 21.23 1475.32 1016.222 15.75 15.92 10.520 2.45606 3.45727 21.24 1475.34 1016.234 16.05 16.22 10.521 2.46834 3.47445 21.36 1475.48 1016.325 16.35 16.52 10.521 2.48268 3.49462 21.50 1475.65 1016.432 16.65 16.82 10.523 2.49794 3.51596 21.64 1475.84 1016.545 16.95 17.12 10.525 2.51111 3.53430 21.76 1476.00 1016.642 17.25 17.42 10.526 2.51388 3.53809 21.79 1476.04 1016.663 17.55 17.72 10.527 2.56078 3.60396 22.23 1476.59 1017.010 17.85 18.02 10.527 2.58482 3.63787 22.46 1476.86 1017.190 18.15 18.32 10.526 2.58624 3.63991 22.48 1476.88 1017.202 18.45 18.62 10.526 2.58669 3.64056 22.48 1476.89 1017.207 18.65 18.82 10.526 2.58645 3.64024 22.48 1476.89 1017.206