*2019/08/26 15:30:36.44 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/21 16:46:23.000 END TIME : UTC 2017/06/21 16:46:47.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 123 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.66 2 Depth metres 0.15 36.65 3 Temperature 'deg C (ITS90)' 9.821 13.761 4 Conductivity S/m 1.93857 3.13458 5 Conductance:Specific S/m 2.50065 4.49853 6 Salinity PSS-78 15.05 28.3 7 Speed:Sound m/s 1478.92 1481.89 8 Density kg/m^3 1010.868 1021.921 $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 : 527 LATITUDE : 49 17.89827 N ! (deg min) LONGITUDE : 123 5.03175 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 00:38:25 123 123 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 123 123 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:38:24 -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 15:30:36 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_20170621_164623mid % Cast time (UTC),2017-06-21 16:46:23 % Cast time (local),2017-06-21 16:46:23 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2983045 % Start longitude,-123.0838625 % Start altitude,-19.700000762939453 % Start GPS horizontal error(Meter),1.9900000095367432 % Start GPS vertical error(Meter),2.8399999141693115 % Start GPS number of satellites,7 % End latitude,49.2986876 % End longitude,-123.0837426 % End altitude,-20.690000534057617 % End GPS horizontal error(Meter),126.87000274658203 % End GPS vertical error(Meter),127.76999664306641 % End GPS number of satellites,4 % Cast duration (Seconds),115.6 % 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 13.761 1.93857 2.50065 15.05 1479.33 1010.868 0.45 0.45 13.534 1.96562 2.55050 15.37 1478.92 1011.153 0.75 0.76 13.307 2.05072 2.67670 16.19 1479.10 1011.825 1.05 1.06 13.217 2.15711 2.82218 17.15 1479.91 1012.580 1.35 1.36 13.125 2.23210 2.92736 17.85 1480.41 1013.132 1.65 1.66 13.049 2.26612 2.97787 18.18 1480.55 1013.403 1.95 1.96 12.934 2.30087 3.03274 18.54 1480.57 1013.702 2.25 2.27 12.877 2.34492 3.09544 18.96 1480.87 1014.034 2.55 2.57 12.783 2.37102 3.13764 19.24 1480.88 1014.266 2.85 2.87 12.686 2.38907 3.16974 19.45 1480.79 1014.446 3.15 3.17 12.579 2.42605 3.22796 19.83 1480.87 1014.763 3.45 3.47 12.498 2.44573 3.26119 20.05 1480.85 1014.947 3.75 3.77 12.407 2.46931 3.30056 20.31 1480.84 1015.164 4.05 4.07 12.335 2.50490 3.35463 20.67 1481.02 1015.456 4.35 4.38 12.265 2.56926 3.44727 21.30 1481.52 1015.950 4.65 4.68 12.145 2.61443 3.51927 21.78 1481.66 1016.343 4.95 4.98 12.009 2.64428 3.57246 22.13 1481.61 1016.640 5.25 5.28 11.922 2.66386 3.60741 22.36 1481.58 1016.835 5.55 5.58 11.868 2.68331 3.63909 22.58 1481.65 1017.009 5.85 5.88 11.807 2.72066 3.69586 22.96 1481.89 1017.317 6.15 6.18 11.734 2.73472 3.72231 23.13 1481.85 1017.466 6.45 6.48 11.662 2.73923 3.73581 23.22 1481.69 1017.547 6.75 6.78 11.598 2.75916 3.76958 23.45 1481.74 1017.734 7.05 7.08 11.535 2.76269 3.78090 23.52 1481.61 1017.801 7.35 7.38 11.494 2.76318 3.78582 23.55 1481.50 1017.833 7.65 7.68 11.466 2.76532 3.79168 23.59 1481.45 1017.868 7.95 7.98 11.437 2.76811 3.79848 23.63 1481.41 1017.909 8.25 8.28 11.405 2.77270 3.80812 23.70 1481.37 1017.964 8.55 8.58 11.369 2.77718 3.81801 23.76 1481.33 1018.022 8.85 8.88 11.314 2.78528 3.83504 23.87 1481.27 1018.119 9.15 9.18 11.249 2.81060 3.87681 24.15 1481.38 1018.349 9.45 9.48 11.189 2.83396 3.91554 24.41 1481.48 1018.562 9.75 9.78 11.131 2.84967 3.94348 24.60 1481.50 1018.718 10.05 10.08 11.077 2.86808 3.97497 24.81 1481.56 1018.892 10.35 10.38 11.012 2.87903 3.99737 24.96 1481.51 1019.019 10.65 10.68 10.959 2.88962 4.01797 25.10 1481.49 1019.135 10.95 10.98 10.935 2.89338 4.02583 25.15 1481.47 1019.181 11.25 11.29 10.914 2.89909 4.03612 25.22 1481.48 1019.239 11.55 11.59 10.897 2.90695 4.04907 25.31 1481.53 1019.311 11.85 11.88 10.878 2.91563 4.06322 25.40 1481.58 1019.390 12.15 12.19 10.856 2.91997 4.07185 25.46 1481.58 1019.439 12.45 12.48 10.834 2.92273 4.07818 25.50 1481.55 1019.476 12.75 12.78 10.818 2.92290 4.08026 25.52 1481.51 1019.490 13.05 13.08 10.804 2.92613 4.08628 25.56 1481.52 1019.525 13.35 13.38 10.786 2.93003 4.09381 25.61 1481.52 1019.568 13.65 13.68 10.764 2.93757 4.10692 25.69 1481.55 1019.642 13.95 13.98 10.734 2.94172 4.11617 25.75 1481.52 1019.695 14.25 14.28 10.704 2.95203 4.13409 25.88 1481.56 1019.795 14.55 14.58 10.679 2.96051 4.14886 25.98 1481.59 1019.878 14.85 14.88 10.654 2.96344 4.15580 26.02 1481.56 1019.918 15.15 15.18 10.630 2.97206 4.17068 26.12 1481.60 1020.001 15.45 15.48 10.605 2.98269 4.18864 26.24 1481.66 1020.101 15.75 15.78 10.556 2.99299 4.20882 26.38 1481.65 1020.215 16.05 16.08 10.528 3.00296 4.22616 26.50 1481.70 1020.312 16.35 16.38 10.503 3.00847 4.23694 26.57 1481.70 1020.373 16.65 16.68 10.472 3.01304 4.24709 26.63 1481.67 1020.432 16.95 16.98 10.459 3.01581 4.25252 26.67 1481.67 1020.463 17.25 17.28 10.439 3.02031 4.26126 26.73 1481.67 1020.513 17.55 17.58 10.399 3.02860 4.27776 26.84 1481.67 1020.607 17.85 17.88 10.354 3.04218 4.30240 27.00 1481.71 1020.744 18.15 18.18 10.312 3.05213 4.32166 27.13 1481.71 1020.853 18.45 18.48 10.266 3.05777 4.33536 27.22 1481.66 1020.931 18.75 18.78 10.229 3.06979 4.35688 27.37 1481.71 1021.052 19.05 19.08 10.188 3.08494 4.38356 27.55 1481.78 1021.200 19.35 19.38 10.153 3.09342 4.39991 27.66 1481.79 1021.292 19.65 19.68 10.129 3.09443 4.40434 27.69 1481.74 1021.319 19.95 19.98 10.116 3.09496 4.40673 27.70 1481.72 1021.334 20.25 20.28 10.105 3.09609 4.40980 27.72 1481.70 1021.353 20.55 20.58 10.091 3.09743 4.41336 27.75 1481.69 1021.375 20.85 20.88 10.078 3.10143 4.42070 27.80 1481.71 1021.417 21.15 21.18 10.065 3.10197 4.42311 27.81 1481.68 1021.432 21.45 21.47 10.057 3.10508 4.42862 27.85 1481.70 1021.463 21.75 21.77 10.049 3.10902 4.43524 27.89 1481.73 1021.501 22.05 22.07 10.038 3.11141 4.43999 27.93 1481.74 1021.529 22.35 22.37 10.030 3.11293 4.44318 27.95 1481.74 1021.548 22.65 22.67 10.025 3.11343 4.44460 27.95 1481.73 1021.557 22.95 22.97 10.025 3.11323 4.44432 27.95 1481.74 1021.557 23.25 23.27 10.024 3.11337 4.44464 27.95 1481.74 1021.560 23.55 23.57 10.024 3.11508 4.44705 27.97 1481.77 1021.574 23.85 23.87 10.021 3.11779 4.45126 28.00 1481.80 1021.599 24.15 24.17 10.026 3.11831 4.45147 28.00 1481.82 1021.601 24.45 24.47 10.030 3.11861 4.45137 28.00 1481.84 1021.601 24.75 24.77 10.030 3.11839 4.45102 28.00 1481.84 1021.601 25.05 25.07 10.027 3.11832 4.45132 28.00 1481.84 1021.604 25.35 25.37 10.025 3.11830 4.45153 28.00 1481.84 1021.606 25.65 25.66 10.023 3.11778 4.45107 28.00 1481.83 1021.605 25.95 25.96 10.022 3.11827 4.45184 28.00 1481.84 1021.611 26.25 26.26 10.021 3.11845 4.45230 28.01 1481.84 1021.615 26.55 26.56 10.019 3.11785 4.45169 28.00 1481.83 1021.613 26.85 26.86 10.017 3.11845 4.45276 28.01 1481.84 1021.620 27.15 27.16 10.017 3.11959 4.45436 28.02 1481.86 1021.630 27.45 27.46 10.016 3.12139 4.45712 28.04 1481.88 1021.646 27.75 27.76 10.011 3.12266 4.45960 28.06 1481.89 1021.661 28.05 28.06 10.008 3.12246 4.45969 28.06 1481.88 1021.663 28.35 28.36 10.003 3.12354 4.46184 28.07 1481.89 1021.677 28.65 28.66 9.992 3.12350 4.46316 28.08 1481.86 1021.686 28.95 28.96 9.976 3.12361 4.46537 28.09 1481.82 1021.700 29.25 29.26 9.966 3.12455 4.46803 28.11 1481.81 1021.717 29.55 29.56 9.955 3.12601 4.47153 28.13 1481.80 1021.738 29.85 29.86 9.949 3.12666 4.47317 28.14 1481.80 1021.748 30.15 30.16 9.940 3.12826 4.47659 28.16 1481.80 1021.768 30.45 30.45 9.929 3.12835 4.47811 28.17 1481.78 1021.779 30.75 30.75 9.917 3.12879 4.48031 28.19 1481.75 1021.793 31.05 31.05 9.904 3.12932 4.48271 28.20 1481.73 1021.808 31.35 31.35 9.893 3.13005 4.48523 28.22 1481.71 1021.824 31.65 31.65 9.884 3.13085 4.48751 28.23 1481.70 1021.838 31.95 31.95 9.872 3.13104 4.48937 28.25 1481.68 1021.850 32.25 32.25 9.860 3.13103 4.49081 28.25 1481.65 1021.860 32.55 32.55 9.851 3.13162 4.49285 28.27 1481.64 1021.873 32.85 32.85 9.845 3.13123 4.49303 28.27 1481.62 1021.876 33.15 33.15 9.848 3.13151 4.49306 28.27 1481.64 1021.877 33.45 33.45 9.847 3.13201 4.49393 28.27 1481.65 1021.883 33.75 33.75 9.843 3.13206 4.49450 28.28 1481.64 1021.888 34.05 34.05 9.839 3.13332 4.49681 28.29 1481.65 1021.902 34.35 34.34 9.838 3.13269 4.49604 28.29 1481.64 1021.899 34.65 34.65 9.837 3.13345 4.49725 28.30 1481.65 1021.907 34.95 34.94 9.835 3.13304 4.49697 28.29 1481.65 1021.907 35.25 35.24 9.830 3.13255 4.49685 28.29 1481.63 1021.907 35.55 35.54 9.825 3.13272 4.49777 28.30 1481.63 1021.914 35.85 35.84 9.823 3.13268 4.49804 28.30 1481.63 1021.917 36.15 36.14 9.821 3.13287 4.49853 28.30 1481.63 1021.921 36.45 36.44 9.837 3.13418 4.49839 28.30 1481.69 1021.921 36.66 36.65 9.846 3.13458 4.49776 28.30 1481.72 1021.917