*2019/08/26 15:30:12.29 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/10/20 18:59:20.000 END TIME : UTC 2016/10/20 18:59:33.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 66 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.57 2 Depth metres 0.15 19.66 3 Temperature 'deg C (ITS90)' 10.563 10.946 4 Conductivity S/m 0.8518E-01 2.93667 5 Conductance:Specific S/m 0.11857 4.12839 6 Salinity PSS-78 0.58 25.82 7 Speed:Sound m/s 1451.63 1481.11 8 Density kg/m^3 1000.071 1019.791 $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 : 423 LATITUDE : 49 6.42484 N ! (deg min) LONGITUDE : 123 8.59831 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 22:56:07 66 66 HDREDIT2 3.1.1 2017/12/13 11:31:15 ? ? CALIB 12.0 2019/08/26 15:30:12 66 66 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 22:56:07 -HEADER EDITS: 2017/12/13 11:31:15 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_185920 % Cast time (UTC),2016-10-20 18:59:20 % Cast time (local),2016-10-20 18:59:20 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1070807 % Start longitude,-123.1433052 % Start altitude,-19.350000381469727 % Start GPS horizontal error(Meter),1.6799999475479126 % Start GPS vertical error(Meter),2.4600000381469727 % Start GPS number of satellites,9 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),151.4 % 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 10.946 0.08537 0.11874 0.58 1451.72 1000.071 0.45 0.46 10.922 0.08518 0.11857 0.58 1451.63 1000.075 0.75 0.76 10.910 0.10801 0.15039 0.75 1451.80 1000.206 1.05 1.07 10.876 0.13840 0.19288 0.97 1451.94 1000.384 1.35 1.38 10.816 0.16516 0.23056 1.17 1451.96 1000.548 1.65 1.68 10.784 0.19610 0.27401 1.40 1452.13 1000.735 1.95 1.99 10.767 0.26390 0.36892 1.92 1452.70 1001.141 2.25 2.29 10.733 0.33675 0.47120 2.49 1453.28 1001.589 2.55 2.60 10.701 0.40570 0.56818 3.03 1453.83 1002.019 2.85 2.90 10.681 0.74472 1.04359 5.81 1457.13 1004.180 3.15 3.21 10.669 1.00371 1.40698 8.01 1459.75 1005.890 3.45 3.51 10.658 1.16050 1.62725 9.37 1461.36 1006.948 3.75 3.81 10.651 1.32037 1.85179 10.77 1463.03 1008.039 4.05 4.12 10.650 1.42961 2.00503 11.74 1464.20 1008.792 4.35 4.42 10.650 1.57208 2.20492 13.01 1465.74 1009.781 4.65 4.72 10.649 1.80591 2.53290 15.13 1468.29 1011.424 4.95 5.03 10.647 2.22565 3.12180 19.01 1472.94 1014.431 5.25 5.33 10.645 2.37448 3.33073 20.41 1474.62 1015.516 5.55 5.63 10.641 2.40996 3.38090 20.74 1475.01 1015.779 5.85 5.93 10.639 2.47941 3.47853 21.40 1475.80 1016.291 6.15 6.23 10.636 2.53180 3.55226 21.90 1476.39 1016.679 6.45 6.53 10.633 2.56419 3.59800 22.21 1476.76 1016.921 6.75 6.83 10.631 2.57200 3.60923 22.28 1476.85 1016.982 7.05 7.13 10.631 2.60030 3.64890 22.55 1477.18 1017.192 7.35 7.43 10.633 2.66683 3.74209 23.18 1477.95 1017.685 7.65 7.73 10.631 2.70094 3.79013 23.51 1478.34 1017.940 7.95 8.03 10.630 2.70459 3.79540 23.55 1478.38 1017.970 8.25 8.33 10.630 2.70666 3.79826 23.57 1478.41 1017.986 8.55 8.63 10.631 2.71038 3.80344 23.60 1478.46 1018.015 8.85 8.93 10.630 2.72143 3.81902 23.71 1478.59 1018.099 9.15 9.23 10.630 2.72738 3.82740 23.77 1478.67 1018.144 9.45 9.54 10.628 2.73041 3.83180 23.80 1478.70 1018.169 9.75 9.84 10.627 2.74233 3.84868 23.91 1478.84 1018.260 10.05 10.13 10.625 2.75100 3.86107 24.00 1478.94 1018.327 10.35 10.44 10.621 2.75260 3.86371 24.01 1478.95 1018.343 10.65 10.74 10.618 2.75703 3.87027 24.06 1479.00 1018.379 10.95 11.04 10.615 2.76335 3.87950 24.12 1479.07 1018.430 11.25 11.34 10.610 2.77465 3.89589 24.23 1479.19 1018.519 11.55 11.64 10.605 2.78403 3.90962 24.32 1479.29 1018.593 11.85 11.94 10.599 2.79419 3.92448 24.43 1479.39 1018.674 12.15 12.24 10.595 2.79901 3.93176 24.48 1479.44 1018.715 12.45 12.54 10.592 2.80928 3.94652 24.58 1479.56 1018.795 12.75 12.84 10.589 2.82251 3.96545 24.70 1479.71 1018.897 13.05 13.14 10.585 2.85322 4.00900 25.00 1480.06 1019.131 13.35 13.44 10.581 2.90394 4.08070 25.50 1480.64 1019.516 13.65 13.74 10.577 2.92392 4.10927 25.69 1480.87 1019.670 13.95 14.04 10.572 2.92849 4.11630 25.74 1480.91 1019.710 14.25 14.34 10.570 2.92964 4.11812 25.75 1480.92 1019.721 14.55 14.64 10.569 2.93063 4.11964 25.76 1480.94 1019.730 14.85 14.94 10.568 2.93206 4.12181 25.78 1480.96 1019.743 15.15 15.24 10.567 2.93245 4.12242 25.78 1480.96 1019.748 15.45 15.54 10.565 2.93326 4.12382 25.79 1480.97 1019.757 15.75 15.84 10.565 2.93437 4.12534 25.80 1480.99 1019.766 16.05 16.14 10.565 2.93465 4.12580 25.80 1481.00 1019.770 16.35 16.44 10.565 2.93474 4.12589 25.81 1481.00 1019.772 16.65 16.74 10.565 2.93565 4.12714 25.81 1481.02 1019.780 16.95 17.04 10.563 2.93544 4.12709 25.81 1481.02 1019.781 17.25 17.34 10.563 2.93627 4.12822 25.82 1481.03 1019.789 17.55 17.64 10.566 2.93662 4.12839 25.82 1481.05 1019.790 17.85 17.94 10.568 2.93608 4.12739 25.82 1481.05 1019.786 18.15 18.24 10.571 2.93662 4.12789 25.82 1481.07 1019.790 18.45 18.54 10.572 2.93642 4.12748 25.82 1481.08 1019.789 18.75 18.84 10.572 2.93628 4.12724 25.82 1481.08 1019.789 19.05 19.14 10.572 2.93607 4.12691 25.81 1481.08 1019.788 19.35 19.44 10.572 2.93619 4.12707 25.81 1481.09 1019.791 19.57 19.66 10.578 2.93667 4.12709 25.81 1481.11 1019.791