*2019/08/26 15:30:05.87 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/03/10 00:13:32.000 END TIME : UTC 2016/03/10 00:13:43.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 56 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 16.61 2 Depth metres 0.15 16.79 3 Temperature 'deg C (ITS90)' 6.343 8.088 4 Conductivity S/m 0.17414 2.29909 5 Conductance:Specific S/m 0.27763 3.4749 6 Salinity PSS-78 1.4 21.15 7 Speed:Sound m/s 1433.91 1465.97 8 Density kg/m^3 1001.049 1016.487 $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 : 180 LATITUDE : 49 6.49066 N ! (deg min) LONGITUDE : 123 8.59240 W ! (deg min) *INSTRUMENT TYPE : SonTek CTD MODEL : CastAway SERIAL NUMBER : CC1545005 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------- ------ ---------- -------- --------- --------- READ_CHS_CTDS 1.0 2017/12/08 19:04:15 56 56 HDREDIT2 3.1.1 2017/12/13 11:31:11 ? ? CALIB 12.0 2019/08/26 15:30:05 56 56 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 19:04:14 -HEADER EDITS: 2017/12/13 11:31:11 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 15:30:05 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,CC1545005 % File name,CC1545005_20160310_001332 % Cast time (UTC),2016-03-10 00:13:32 % Cast time (local),2016-03-10 00:13:32 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1081776 % Start longitude,-123.1432067 % Start altitude,-6.6500000953674316 % Start GPS horizontal error(Meter),3.0799999237060547 % Start GPS vertical error(Meter),3.4200000762939453 % Start GPS number of satellites,6 % End latitude,49.1081867 % End longitude,-123.1435145 % End altitude,-16.329999923706055 % End GPS horizontal error(Meter),7.1599998474121094 % End GPS vertical error(Meter),8.2299995422363281 % End GPS number of satellites,6 % Cast duration (Seconds),78.2 % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2015-11-20 % Temperature calibration date,2015-11-19 % Pressure calibration date,2015-11-17 % 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 6.343 0.17536 0.27975 1.41 1433.91 1001.055 0.45 0.46 6.361 0.17528 0.27946 1.41 1434.00 1001.055 0.75 0.76 6.362 0.17414 0.27763 1.40 1433.99 1001.049 1.05 1.07 6.363 0.17939 0.28598 1.44 1434.06 1001.085 1.35 1.38 6.373 0.17823 0.28406 1.43 1434.09 1001.078 1.65 1.68 6.387 0.18120 0.28865 1.46 1434.19 1001.099 1.95 1.99 6.404 0.18821 0.29966 1.52 1434.35 1001.146 2.25 2.29 6.416 0.19743 0.31422 1.59 1434.50 1001.209 2.55 2.60 6.438 0.23540 0.37439 1.92 1435.02 1001.466 2.85 2.90 6.470 0.27798 0.44166 2.29 1435.62 1001.757 3.15 3.21 6.504 0.34594 0.54904 2.88 1436.53 1002.227 3.45 3.51 6.547 0.37174 0.58917 3.11 1437.01 1002.404 3.75 3.82 6.585 0.41030 0.64951 3.45 1437.61 1002.672 4.05 4.12 6.600 0.43876 0.69425 3.70 1437.99 1002.873 4.35 4.43 6.624 0.43968 0.69517 3.71 1438.11 1002.878 4.65 4.73 6.644 0.44353 0.70080 3.74 1438.24 1002.904 4.95 5.04 6.658 0.45438 0.71764 3.83 1438.43 1002.980 5.25 5.34 6.670 0.48585 0.76705 4.12 1438.84 1003.204 5.55 5.65 6.687 0.51950 0.81972 4.42 1439.30 1003.443 5.85 5.95 6.705 0.52906 0.83435 4.50 1439.49 1003.510 6.15 6.26 6.716 0.56488 0.89053 4.83 1439.95 1003.767 6.45 6.56 6.727 0.60189 0.94854 5.17 1440.43 1004.034 6.75 6.87 6.747 0.63713 1.00344 5.49 1440.92 1004.287 7.05 7.17 6.778 0.68889 1.08392 5.96 1441.65 1004.659 7.35 7.47 6.819 0.75009 1.17867 6.52 1442.54 1005.100 7.65 7.78 6.899 0.81165 1.27223 7.08 1443.58 1005.537 7.95 8.08 6.974 0.89066 1.39279 7.81 1444.81 1006.105 8.25 8.39 7.040 0.99876 1.55862 8.82 1446.35 1006.894 8.55 8.69 7.095 1.13354 1.76591 10.09 1448.17 1007.891 8.85 8.99 7.153 1.18578 1.84398 10.58 1449.02 1008.269 9.15 9.30 7.215 1.26549 1.96412 11.33 1450.21 1008.853 9.45 9.60 7.260 1.31337 2.03561 11.78 1450.96 1009.203 9.75 9.90 7.288 1.34044 2.07574 12.03 1451.39 1009.400 10.05 10.21 7.318 1.36357 2.10960 12.24 1451.79 1009.567 10.35 10.51 7.356 1.41266 2.18296 12.71 1452.53 1009.929 10.65 10.81 7.398 1.44385 2.22831 13.00 1453.06 1010.153 10.95 11.11 7.423 1.47211 2.27019 13.26 1453.49 1010.361 11.25 11.42 7.467 1.51475 2.33275 13.66 1454.17 1010.671 11.55 11.72 7.595 1.57828 2.42102 14.23 1455.41 1011.108 11.85 12.02 7.745 1.94172 2.96495 17.76 1460.37 1013.851 12.15 12.32 7.862 2.13145 3.24305 19.59 1463.10 1015.276 12.45 12.62 7.941 2.17386 3.29960 19.98 1463.89 1015.567 12.75 12.93 7.988 2.20742 3.34578 20.29 1464.46 1015.806 13.05 13.23 8.020 2.23225 3.38011 20.52 1464.88 1015.984 13.35 13.53 8.031 2.23247 3.37935 20.51 1464.92 1015.981 13.65 13.83 8.035 2.23392 3.38118 20.52 1464.95 1015.991 13.95 14.13 8.033 2.23558 3.38385 20.54 1464.97 1016.007 14.25 14.43 8.034 2.23955 3.38976 20.58 1465.03 1016.039 14.55 14.73 8.042 2.24315 3.39435 20.61 1465.11 1016.063 14.85 15.03 8.042 2.24409 3.39577 20.62 1465.12 1016.072 15.15 15.33 8.051 2.27162 3.43654 20.89 1465.50 1016.285 15.45 15.63 8.074 2.29342 3.46713 21.10 1465.85 1016.445 15.75 15.93 8.080 2.29659 3.47126 21.13 1465.91 1016.467 16.05 16.23 8.081 2.29909 3.47490 21.15 1465.95 1016.487 16.35 16.54 8.084 2.29874 3.47406 21.15 1465.96 1016.484 16.61 16.79 8.088 2.29817 3.47284 21.14 1465.97 1016.479