*2019/08/26 15:30:12.12 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/20 00:24:54.000 END TIME : UTC 2016/10/20 00:25:06.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 64 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 18.94 2 Depth metres 0.15 19.1 3 Temperature 'deg C (ITS90)' 10.531 10.655 4 Conductivity S/m 0.12228 3.07453 5 Conductance:Specific S/m 0.17148 4.32643 6 Salinity PSS-78 0.86 27.19 7 Speed:Sound m/s 1450.93 1482.6 8 Density kg/m^3 1000.314 1020.864 $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 : 418 LATITUDE : 49 6.41992 N ! (deg min) LONGITUDE : 123 8.54326 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 22:51:07 64 64 HDREDIT2 3.1.1 2017/12/13 11:31:14 ? ? CALIB 12.0 2019/08/26 15:30:12 64 64 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:51:06 -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 15:30:12 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_20161020_002454 % Cast time (UTC),2016-10-20 00:24:54 % Cast time (local),2016-10-20 00:24:54 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1069986 % Start longitude,-123.1423876 % Start altitude,-21.030000686645508 % Start GPS horizontal error(Meter),5.5100002288818359 % Start GPS vertical error(Meter),3.0499999523162842 % Start GPS number of satellites,4 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),70.8 % 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 10.655 0.12228 0.17148 0.86 1450.93 1000.314 0.45 0.46 10.654 0.12589 0.17655 0.88 1450.97 1000.336 0.75 0.76 10.655 0.13571 0.19031 0.95 1451.06 1000.394 1.05 1.07 10.655 0.13641 0.19129 0.96 1451.07 1000.400 1.35 1.38 10.652 0.14246 0.19980 1.00 1451.12 1000.437 1.65 1.68 10.650 0.16146 0.22645 1.15 1451.30 1000.549 1.95 1.99 10.653 0.17100 0.23981 1.22 1451.40 1000.606 2.25 2.29 10.651 0.17499 0.24542 1.25 1451.43 1000.631 2.55 2.60 10.651 0.18191 0.25512 1.30 1451.50 1000.673 2.85 2.90 10.651 0.18534 0.25993 1.32 1451.54 1000.694 3.15 3.21 10.648 0.19219 0.26956 1.38 1451.60 1000.736 3.45 3.52 10.648 0.19934 0.27960 1.43 1451.67 1000.780 3.75 3.82 10.647 0.20520 0.28782 1.48 1451.72 1000.816 4.05 4.13 10.646 0.21606 0.30306 1.56 1451.83 1000.882 4.35 4.43 10.645 0.22547 0.31627 1.63 1451.91 1000.940 4.65 4.74 10.645 0.24297 0.34082 1.76 1452.08 1001.046 4.95 5.04 10.643 0.29561 0.41469 2.17 1452.58 1001.365 5.25 5.35 10.637 0.36468 0.51167 2.71 1453.23 1001.790 5.55 5.65 10.632 0.46456 0.65188 3.51 1454.19 1002.412 5.85 5.96 10.627 0.57829 0.81158 4.43 1455.30 1003.134 6.15 6.26 10.623 0.77513 1.08796 6.07 1457.28 1004.407 6.45 6.57 10.618 0.96209 1.35056 7.66 1459.19 1005.643 6.75 6.87 10.608 1.18060 1.65777 9.55 1461.45 1007.115 7.05 7.17 10.599 1.27257 1.78737 10.36 1462.39 1007.746 7.35 7.48 10.596 1.33776 1.87906 10.94 1463.09 1008.194 7.65 7.78 10.591 1.43952 2.02233 11.85 1464.16 1008.899 7.95 8.08 10.588 1.51806 2.13282 12.55 1465.00 1009.446 8.25 8.39 10.584 1.55553 2.18569 12.89 1465.40 1009.710 8.55 8.69 10.582 1.61711 2.27239 13.44 1466.07 1010.143 8.85 8.99 10.579 1.67461 2.35335 13.96 1466.69 1010.548 9.15 9.29 10.577 1.75397 2.46501 14.69 1467.55 1011.110 9.45 9.60 10.575 1.81363 2.54900 15.23 1468.21 1011.534 9.75 9.90 10.573 1.84614 2.59485 15.53 1468.56 1011.767 10.05 10.20 10.571 1.86727 2.62470 15.72 1468.79 1011.920 10.35 10.50 10.569 1.88765 2.65352 15.91 1469.02 1012.067 10.65 10.81 10.565 1.92333 2.70393 16.24 1469.40 1012.324 10.95 11.11 10.562 2.02505 2.84724 17.18 1470.53 1013.056 11.25 11.41 10.558 2.28776 3.21694 19.64 1473.47 1014.960 11.55 11.71 10.554 2.48631 3.49657 21.51 1475.71 1016.418 11.85 12.01 10.550 2.59868 3.65493 22.58 1477.00 1017.252 12.15 12.31 10.547 2.69452 3.79005 23.50 1478.10 1017.967 12.45 12.61 10.545 2.79050 3.92527 24.43 1479.21 1018.686 12.75 12.91 10.543 2.86141 4.02524 25.11 1480.03 1019.220 13.05 13.21 10.542 2.93144 4.12395 25.79 1480.85 1019.749 13.35 13.51 10.540 2.96146 4.16642 26.08 1481.20 1019.979 13.65 13.81 10.539 3.00716 4.23078 26.53 1481.74 1020.326 13.95 14.11 10.537 3.03532 4.27059 26.80 1482.07 1020.541 14.25 14.41 10.536 3.04028 4.27772 26.85 1482.13 1020.581 14.55 14.71 10.536 3.04449 4.28365 26.89 1482.18 1020.614 14.85 15.01 10.535 3.05388 4.29702 26.99 1482.29 1020.688 15.15 15.31 10.534 3.05588 4.29993 27.01 1482.32 1020.705 15.45 15.61 10.534 3.05622 4.30040 27.01 1482.33 1020.709 15.75 15.91 10.534 3.05877 4.30406 27.04 1482.36 1020.730 16.05 16.21 10.533 3.06116 4.30749 27.06 1482.39 1020.750 16.35 16.51 10.532 3.06567 4.31396 27.10 1482.45 1020.786 16.65 16.81 10.532 3.07139 4.32203 27.16 1482.52 1020.831 16.95 17.11 10.532 3.07273 4.32394 27.17 1482.54 1020.842 17.25 17.41 10.533 3.07310 4.32433 27.18 1482.55 1020.846 17.55 17.71 10.533 3.07262 4.32367 27.17 1482.55 1020.843 17.85 18.01 10.532 3.07286 4.32407 27.17 1482.56 1020.847 18.15 18.31 10.531 3.07234 4.32342 27.17 1482.56 1020.845 18.45 18.61 10.531 3.07374 4.32542 27.18 1482.58 1020.857 18.75 18.91 10.532 3.07308 4.32443 27.18 1482.57 1020.853 18.94 19.10 10.532 3.07453 4.32643 27.19 1482.60 1020.864