*2019/08/26 15:30:36.94 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/22 00:00:51.000 END TIME : UTC 2017/06/22 00:01:13.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 113 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.73 2 Depth metres 0.15 33.75 3 Temperature 'deg C (ITS90)' 10.2 13.836 4 Conductivity S/m 2.23757 3.08611 5 Conductance:Specific S/m 2.88086 4.38374 6 Salinity PSS-78 17.57 27.55 7 Speed:Sound m/s 1481.56 1482.71 8 Density kg/m^3 1012.789 1021.263 $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 : 538 LATITUDE : 49 17.34230 N ! (deg min) LONGITUDE : 123 5.13823 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 00:49:02 113 113 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 113 113 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:49:01 -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_20170622_000051 % Cast time (UTC),2017-06-22 00:00:51 % Cast time (local),2017-06-22 00:00:51 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2890384 % Start longitude,-123.0856371 % Start altitude,-22.600000381469727 % Start GPS horizontal error(Meter),2.3199999332427979 % Start GPS vertical error(Meter),3.9200000762939453 % 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),77.6 % 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 13.836 2.23759 2.88086 17.57 1482.53 1012.789 0.45 0.45 13.830 2.23757 2.88120 17.57 1482.52 1012.793 0.75 0.76 13.825 2.23818 2.88239 17.58 1482.51 1012.801 1.05 1.06 13.820 2.24070 2.88598 17.60 1482.53 1012.822 1.35 1.36 13.819 2.24363 2.88983 17.62 1482.56 1012.843 1.65 1.66 13.819 2.24412 2.89049 17.63 1482.57 1012.848 1.95 1.96 13.820 2.24644 2.89337 17.65 1482.60 1012.864 2.25 2.27 13.820 2.25255 2.90131 17.70 1482.66 1012.906 2.55 2.57 13.815 2.25377 2.90321 17.71 1482.67 1012.917 2.85 2.87 13.806 2.25628 2.90716 17.74 1482.67 1012.940 3.15 3.17 13.790 2.25783 2.91034 17.76 1482.64 1012.960 3.45 3.47 13.762 2.27005 2.92821 17.88 1482.69 1013.057 3.75 3.77 13.712 2.27680 2.94066 17.96 1482.62 1013.130 4.05 4.08 13.649 2.30360 2.98018 18.22 1482.71 1013.343 4.35 4.38 13.501 2.34063 3.03969 18.61 1482.67 1013.672 4.65 4.68 13.325 2.37275 3.09556 18.98 1482.49 1013.986 4.95 4.98 13.173 2.39305 3.13445 19.23 1482.27 1014.209 5.25 5.28 13.021 2.43315 3.19973 19.67 1482.26 1014.569 5.55 5.58 12.863 2.46636 3.25693 20.04 1482.15 1014.888 5.85 5.88 12.703 2.50503 3.32205 20.47 1482.11 1015.249 6.15 6.19 12.541 2.58383 3.44133 21.27 1482.49 1015.894 6.45 6.49 12.303 2.62587 3.51969 21.79 1482.27 1016.335 6.75 6.79 11.997 2.66183 3.59737 22.30 1481.80 1016.780 7.05 7.09 11.817 2.70846 3.67832 22.84 1481.80 1017.229 7.35 7.39 11.755 2.74201 3.73011 23.19 1482.00 1017.510 7.65 7.69 11.700 2.75611 3.75496 23.36 1482.01 1017.649 7.95 7.99 11.620 2.77219 3.78506 23.55 1481.97 1017.818 8.25 8.29 11.575 2.78613 3.80883 23.71 1482.00 1017.951 8.55 8.59 11.531 2.79625 3.82723 23.84 1482.00 1018.054 8.85 8.89 11.491 2.80475 3.84304 23.94 1481.99 1018.143 9.15 9.19 11.456 2.80984 3.85374 24.01 1481.95 1018.205 9.45 9.49 11.425 2.81051 3.85791 24.04 1481.88 1018.232 9.75 9.79 11.391 2.80927 3.85980 24.05 1481.77 1018.247 10.05 10.09 11.358 2.80953 3.86366 24.07 1481.69 1018.272 10.35 10.39 11.322 2.81086 3.86938 24.11 1481.60 1018.307 10.65 10.69 11.279 2.81752 3.88316 24.20 1481.56 1018.386 10.95 10.99 11.238 2.82836 3.90245 24.33 1481.58 1018.494 11.25 11.29 11.196 2.84110 3.92464 24.48 1481.61 1018.618 11.55 11.59 11.147 2.85972 3.95571 24.69 1481.69 1018.789 11.85 11.89 11.070 2.88237 3.99548 24.95 1481.74 1019.010 12.15 12.19 11.009 2.89860 4.02482 25.15 1481.76 1019.174 12.45 12.49 10.968 2.91442 4.05136 25.33 1481.83 1019.321 12.75 12.79 10.931 2.92943 4.07648 25.50 1481.90 1019.460 13.05 13.09 10.884 2.93977 4.09619 25.63 1481.90 1019.571 13.35 13.39 10.842 2.94444 4.10747 25.70 1481.84 1019.636 13.65 13.69 10.808 2.94917 4.11799 25.77 1481.81 1019.697 13.95 13.99 10.777 2.95580 4.13091 25.86 1481.80 1019.770 14.25 14.29 10.742 2.96362 4.14587 25.96 1481.80 1019.855 14.55 14.59 10.698 2.97467 4.16648 26.10 1481.81 1019.971 14.85 14.89 10.657 2.99598 4.20108 26.33 1481.95 1020.161 15.15 15.19 10.625 3.01907 4.23724 26.58 1482.14 1020.360 15.45 15.49 10.576 3.02827 4.25612 26.71 1482.11 1020.467 15.75 15.79 10.529 3.03585 4.27235 26.82 1482.08 1020.559 16.05 16.09 10.488 3.04129 4.28491 26.90 1482.04 1020.631 16.35 16.39 10.459 3.04508 4.29378 26.96 1482.01 1020.683 16.65 16.69 10.436 3.04545 4.29709 26.98 1481.95 1020.704 16.95 16.99 10.418 3.04520 4.29896 26.99 1481.90 1020.717 17.25 17.29 10.408 3.04587 4.30107 27.00 1481.89 1020.730 17.55 17.59 10.402 3.04582 4.30175 27.00 1481.88 1020.736 17.85 17.89 10.397 3.04530 4.30163 27.00 1481.86 1020.737 18.15 18.19 10.391 3.04541 4.30254 27.01 1481.85 1020.743 18.45 18.49 10.386 3.04578 4.30361 27.02 1481.85 1020.751 18.75 18.79 10.383 3.04591 4.30418 27.02 1481.85 1020.755 19.05 19.09 10.380 3.04588 4.30456 27.02 1481.84 1020.759 19.35 19.39 10.376 3.04586 4.30496 27.02 1481.84 1020.763 19.65 19.69 10.372 3.04599 4.30566 27.03 1481.83 1020.768 19.95 19.99 10.369 3.04535 4.30513 27.02 1481.82 1020.767 20.25 20.29 10.363 3.04666 4.30767 27.04 1481.83 1020.782 20.55 20.59 10.358 3.04739 4.30939 27.05 1481.82 1020.793 20.85 20.89 10.353 3.04728 4.30983 27.05 1481.81 1020.797 21.15 21.18 10.346 3.04821 4.31195 27.07 1481.81 1020.810 21.45 21.48 10.340 3.04941 4.31434 27.09 1481.81 1020.825 21.75 21.78 10.335 3.05217 4.31887 27.11 1481.84 1020.851 22.05 22.08 10.329 3.05578 4.32476 27.16 1481.87 1020.885 22.35 22.38 10.319 3.05825 4.32942 27.19 1481.88 1020.912 22.65 22.68 10.307 3.06003 4.33343 27.21 1481.87 1020.936 22.95 22.98 10.297 3.06201 4.33753 27.24 1481.87 1020.960 23.25 23.28 10.286 3.06296 4.34018 27.26 1481.85 1020.976 23.55 23.58 10.282 3.06416 4.34240 27.27 1481.86 1020.990 23.85 23.88 10.280 3.06471 4.34343 27.28 1481.87 1020.997 24.15 24.18 10.277 3.06529 4.34461 27.29 1481.87 1021.005 24.45 24.48 10.274 3.06612 4.34617 27.30 1481.88 1021.015 24.75 24.78 10.271 3.06565 4.34580 27.30 1481.87 1021.014 25.05 25.08 10.268 3.06614 4.34686 27.30 1481.87 1021.021 25.35 25.38 10.266 3.06649 4.34762 27.31 1481.88 1021.027 25.65 25.68 10.263 3.06819 4.35039 27.32 1481.89 1021.043 25.95 25.98 10.261 3.06917 4.35211 27.34 1481.90 1021.054 26.25 26.28 10.257 3.06853 4.35171 27.33 1481.89 1021.054 26.55 26.58 10.253 3.06866 4.35230 27.34 1481.88 1021.058 26.85 26.88 10.251 3.06951 4.35379 27.35 1481.89 1021.068 27.15 27.18 10.248 3.06998 4.35482 27.35 1481.89 1021.075 27.45 27.48 10.245 3.06946 4.35445 27.35 1481.89 1021.074 27.75 27.77 10.243 3.07088 4.35676 27.37 1481.90 1021.088 28.05 28.07 10.238 3.07425 4.36210 27.40 1481.93 1021.119 28.35 28.37 10.237 3.07566 4.36430 27.42 1481.95 1021.132 28.65 28.67 10.233 3.07598 4.36525 27.42 1481.95 1021.139 28.95 28.97 10.230 3.07621 4.36588 27.43 1481.95 1021.144 29.25 29.27 10.227 3.07688 4.36718 27.44 1481.95 1021.152 29.55 29.57 10.226 3.07766 4.36850 27.45 1481.96 1021.161 29.85 29.87 10.223 3.07800 4.36926 27.45 1481.97 1021.166 30.15 30.17 10.223 3.07850 4.37008 27.46 1481.97 1021.172 30.45 30.47 10.225 3.07848 4.36968 27.45 1481.99 1021.171 30.75 30.77 10.225 3.07964 4.37137 27.46 1482.01 1021.181 31.05 31.07 10.224 3.07937 4.37107 27.46 1482.01 1021.181 31.35 31.37 10.224 3.08035 4.37253 27.47 1482.02 1021.190 31.65 31.67 10.221 3.07966 4.37188 27.47 1482.01 1021.188 31.95 31.97 10.222 3.08019 4.37253 27.47 1482.02 1021.193 32.25 32.27 10.220 3.08137 4.37447 27.48 1482.04 1021.205 32.55 32.57 10.218 3.08234 4.37614 27.50 1482.05 1021.215 32.85 32.87 10.213 3.08268 4.37720 27.50 1482.04 1021.223 33.15 33.16 10.210 3.08426 4.37977 27.52 1482.06 1021.238 33.45 33.47 10.206 3.08610 4.38286 27.54 1482.07 1021.256 33.73 33.75 10.200 3.08611 4.38374 27.55 1482.06 1021.263