*2019/08/26 15:30:37.41 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/22 17:03:42.000 END TIME : UTC 2017/06/22 17:03:58.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 82 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.49 2 Depth metres 0.15 24.55 3 Temperature 'deg C (ITS90)' 10.497 13.946 4 Conductivity S/m 2.28709 2.79438 5 Conductance:Specific S/m 2.93646 3.93609 6 Salinity PSS-78 17.94 24.49 7 Speed:Sound m/s 1479.31 1484.01 8 Density kg/m^3 1013.06 1018.8 $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 : 2017-98 AGENCY : Canadian Hydrographic Service COUNTRY : Canada PROJECT : CHS CTD Data Acquisition SCIENTIST : Dangerfield N. *LOCATION EVENT NUMBER : 547 LATITUDE : 49 18.20440 N ! (deg min) LONGITUDE : 122 58.84356 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 2017/12/09 00:57:48 82 82 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:37 82 82 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:57:47 -HEADER EDITS: 2017/12/13 11:33:21 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 15:30:37 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_20170622_170342mid % Cast time (UTC),2017-06-22 17:03:42 % Cast time (local),2017-06-22 17:03:42 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3034066 % Start longitude,-122.980726 % Start altitude,-17.819999694824219 % Start GPS horizontal error(Meter),2.0499999523162842 % Start GPS vertical error(Meter),2.4100000858306885 % Start GPS number of satellites,6 % End latitude, % End longitude, % End altitude, % End GPS horizontal error(Meter), % End GPS vertical error(Meter), % End GPS number of satellites, % Cast duration (Seconds),66.6 % 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 13.943 2.28929 2.93930 17.96 1483.35 1013.074 0.45 0.45 13.943 2.28709 2.93646 17.94 1483.34 1013.060 0.75 0.76 13.946 2.29790 2.95012 18.03 1483.46 1013.131 1.05 1.06 13.944 2.34060 3.00510 18.40 1483.88 1013.416 1.35 1.36 13.941 2.34653 3.01293 18.45 1483.94 1013.458 1.65 1.66 13.939 2.35052 3.01823 18.49 1483.98 1013.487 1.95 1.96 13.944 2.35125 3.01875 18.49 1484.01 1013.490 2.25 2.26 13.942 2.35146 3.01920 18.50 1484.01 1013.494 2.55 2.56 13.930 2.35140 3.02001 18.50 1483.98 1013.501 2.85 2.87 13.914 2.35229 3.02238 18.52 1483.95 1013.517 3.15 3.17 13.888 2.35207 3.02415 18.53 1483.88 1013.531 3.45 3.47 13.852 2.35253 3.02757 18.55 1483.78 1013.556 3.75 3.77 13.789 2.35238 3.03230 18.58 1483.60 1013.590 4.05 4.07 13.690 2.35203 3.03958 18.62 1483.32 1013.643 4.35 4.38 13.552 2.35180 3.05020 18.69 1482.93 1013.719 4.65 4.68 13.375 2.36288 3.07869 18.87 1482.54 1013.892 4.95 4.98 13.239 2.42932 3.17649 19.52 1482.84 1014.418 5.25 5.28 13.211 2.51063 3.28521 20.25 1483.60 1014.988 5.55 5.58 13.145 2.56664 3.36431 20.78 1484.01 1015.411 5.85 5.88 12.877 2.58782 3.41611 21.12 1483.48 1015.718 6.15 6.18 12.626 2.59355 3.44650 21.31 1482.83 1015.910 6.45 6.48 12.496 2.60198 3.46968 21.46 1482.56 1016.049 6.75 6.79 12.433 2.60853 3.48423 21.56 1482.46 1016.134 7.05 7.09 12.393 2.62124 3.50501 21.70 1482.48 1016.249 7.35 7.39 12.358 2.63760 3.53021 21.86 1482.56 1016.387 7.65 7.69 12.301 2.65596 3.56019 22.07 1482.61 1016.553 7.95 7.99 12.224 2.66759 3.58316 22.22 1482.52 1016.684 8.25 8.29 12.168 2.66818 3.58935 22.26 1482.37 1016.725 8.55 8.59 12.128 2.67010 3.59583 22.30 1482.29 1016.765 8.85 8.89 12.101 2.67227 3.60135 22.33 1482.24 1016.798 9.15 9.19 12.076 2.67456 3.60689 22.37 1482.20 1016.832 9.45 9.49 12.040 2.67814 3.61515 22.42 1482.14 1016.881 9.75 9.79 12.018 2.68078 3.62086 22.46 1482.11 1016.915 10.05 10.09 11.991 2.68240 3.62574 22.49 1482.06 1016.945 10.35 10.39 11.968 2.68591 3.63275 22.54 1482.03 1016.986 10.65 10.70 11.947 2.68738 3.63682 22.56 1482.00 1017.011 10.95 11.00 11.916 2.68837 3.64119 22.59 1481.92 1017.038 11.25 11.30 11.881 2.69068 3.64783 22.63 1481.85 1017.079 11.55 11.60 11.848 2.69597 3.65820 22.70 1481.83 1017.138 11.85 11.90 11.796 2.70036 3.66941 22.77 1481.73 1017.205 12.15 12.20 11.717 2.70673 3.68598 22.88 1481.58 1017.302 12.45 12.50 11.653 2.71276 3.70064 22.98 1481.47 1017.388 12.75 12.80 11.602 2.72191 3.71823 23.09 1481.43 1017.487 13.05 13.10 11.553 2.72945 3.73356 23.20 1481.38 1017.575 13.35 13.40 11.501 2.74016 3.75350 23.33 1481.36 1017.687 13.65 13.70 11.457 2.74633 3.76652 23.41 1481.31 1017.762 13.95 14.00 11.405 2.75013 3.77715 23.48 1481.21 1017.825 14.25 14.30 11.353 2.75565 3.79018 23.57 1481.13 1017.901 14.55 14.60 11.307 2.75621 3.79569 23.60 1481.01 1017.936 14.85 14.90 11.271 2.75767 3.80150 23.64 1480.93 1017.971 15.15 15.20 11.247 2.75876 3.80551 23.66 1480.88 1017.996 15.45 15.50 11.230 2.75979 3.80876 23.68 1480.85 1018.017 15.75 15.80 11.210 2.76214 3.81407 23.72 1480.82 1018.048 16.05 16.11 11.186 2.76509 3.82070 23.76 1480.79 1018.087 16.35 16.41 11.158 2.76735 3.82674 23.80 1480.74 1018.123 16.65 16.71 11.138 2.76792 3.82967 23.82 1480.70 1018.142 16.95 17.01 11.121 2.76817 3.83182 23.83 1480.66 1018.156 17.25 17.31 11.109 2.76769 3.83240 23.84 1480.62 1018.162 17.55 17.61 11.100 2.76887 3.83503 23.85 1480.62 1018.178 17.85 17.91 11.092 2.76923 3.83633 23.86 1480.60 1018.187 18.15 18.21 11.083 2.77001 3.83834 23.88 1480.59 1018.200 18.45 18.51 11.076 2.77056 3.83992 23.89 1480.58 1018.210 18.75 18.81 11.064 2.77131 3.84217 23.90 1480.56 1018.224 19.05 19.11 11.053 2.77082 3.84275 23.90 1480.53 1018.230 19.35 19.41 11.034 2.77140 3.84558 23.92 1480.49 1018.248 19.65 19.71 11.009 2.77143 3.84830 23.94 1480.42 1018.266 19.95 20.01 10.980 2.77335 3.85406 23.97 1480.37 1018.301 20.25 20.31 10.949 2.77567 3.86062 24.02 1480.31 1018.340 20.55 20.61 10.918 2.77899 3.86847 24.07 1480.27 1018.386 20.85 20.91 10.857 2.78303 3.88072 24.14 1480.14 1018.458 21.15 21.21 10.790 2.78608 3.89230 24.22 1479.99 1018.527 21.45 21.51 10.746 2.78669 3.89796 24.25 1479.88 1018.562 21.75 21.81 10.719 2.78845 3.90337 24.29 1479.83 1018.594 22.05 22.11 10.692 2.78782 3.90534 24.30 1479.75 1018.608 22.35 22.41 10.664 2.78804 3.90874 24.32 1479.67 1018.630 22.65 22.71 10.639 2.78811 3.91164 24.34 1479.61 1018.649 22.95 23.01 10.623 2.78796 3.91315 24.35 1479.57 1018.660 23.25 23.31 10.608 2.78796 3.91482 24.36 1479.53 1018.672 23.55 23.61 10.594 2.78802 3.91643 24.37 1479.49 1018.683 23.85 23.91 10.568 2.78940 3.92120 24.40 1479.44 1018.711 24.15 24.21 10.509 2.79306 3.93287 24.47 1479.32 1018.780 24.49 24.55 10.497 2.79438 3.93609 24.49 1479.31 1018.800