*2019/08/26 15:30:36.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/21 23:39:10.000 END TIME : UTC 2017/06/21 23:39:27.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 89 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.52 2 Depth metres 0.15 26.53 3 Temperature 'deg C (ITS90)' 9.979 13.09 4 Conductivity S/m 2.52058 3.12241 5 Conductance:Specific S/m 3.3093 4.46262 6 Salinity PSS-78 20.41 28.07 7 Speed:Sound m/s 1481.51 1483.29 8 Density kg/m^3 1015.109 1021.674 $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 : 531 LATITUDE : 49 18.35883 N ! (deg min) LONGITUDE : 123 6.10849 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 00:42:16 89 89 HDREDIT2 3.1.1 2017/12/13 11:33:21 ? ? CALIB 12.0 2019/08/26 15:30:36 89 89 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 00:42:16 -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_233910 % Cast time (UTC),2017-06-21 23:39:10 % Cast time (local),2017-06-21 23:39:10 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3059805 % Start longitude,-123.1018082 % Start altitude,-20.229999542236328 % Start GPS horizontal error(Meter),2.4500000476837158 % Start GPS vertical error(Meter),3.9600000381469727 % 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),93 % 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 13.090 2.52142 3.30978 20.41 1483.29 1015.110 0.45 0.45 13.083 2.52059 3.30930 20.41 1483.27 1015.109 0.75 0.75 13.070 2.52119 3.31129 20.42 1483.24 1015.123 1.05 1.05 13.044 2.52058 3.31272 20.43 1483.17 1015.135 1.35 1.36 13.016 2.52180 3.31675 20.46 1483.10 1015.161 1.65 1.66 12.986 2.52306 3.32104 20.48 1483.04 1015.189 1.95 1.96 12.952 2.52820 3.33079 20.55 1483.00 1015.245 2.25 2.26 12.950 2.53400 3.33859 20.60 1483.06 1015.288 2.55 2.56 12.940 2.53540 3.34134 20.62 1483.05 1015.305 2.85 2.86 12.931 2.53580 3.34264 20.63 1483.03 1015.314 3.15 3.16 12.919 2.53575 3.34360 20.63 1483.01 1015.322 3.45 3.46 12.909 2.53798 3.34742 20.66 1483.01 1015.344 3.75 3.77 12.892 2.53864 3.34982 20.67 1482.97 1015.360 4.05 4.07 12.854 2.54520 3.36187 20.75 1482.93 1015.429 4.35 4.37 12.799 2.55152 3.37512 20.84 1482.85 1015.507 4.65 4.67 12.738 2.55441 3.38442 20.90 1482.71 1015.565 4.95 4.97 12.682 2.55412 3.38906 20.93 1482.55 1015.597 5.25 5.27 12.628 2.55639 3.39696 20.98 1482.43 1015.647 5.55 5.57 12.549 2.55791 3.40611 21.04 1482.22 1015.706 5.85 5.87 12.472 2.56975 3.42893 21.18 1482.13 1015.836 6.15 6.17 12.387 2.57604 3.44514 21.29 1481.96 1015.932 6.45 6.47 12.299 2.58562 3.46610 21.43 1481.82 1016.054 6.75 6.78 12.217 2.64943 3.55947 22.06 1482.28 1016.555 7.05 7.08 12.051 2.66399 3.59504 22.29 1481.98 1016.763 7.35 7.38 11.912 2.71409 3.67648 22.83 1482.14 1017.210 7.65 7.68 11.781 2.74286 3.72865 23.18 1482.09 1017.501 7.95 7.98 11.606 2.76506 3.77681 23.50 1481.85 1017.776 8.25 8.28 11.473 2.78969 3.82431 23.81 1481.76 1018.043 8.55 8.58 11.417 2.79781 3.84132 23.92 1481.69 1018.141 8.85 8.88 11.379 2.79899 3.84702 23.96 1481.61 1018.176 9.15 9.18 11.348 2.79948 3.85096 23.98 1481.53 1018.201 9.45 9.48 11.329 2.80173 3.85602 24.02 1481.51 1018.232 9.75 9.78 11.315 2.81481 3.87556 24.15 1481.62 1018.338 10.05 10.08 11.290 2.82127 3.88709 24.23 1481.63 1018.403 10.35 10.38 11.251 2.83243 3.90671 24.36 1481.65 1018.513 10.65 10.68 11.212 2.84951 3.93445 24.55 1481.74 1018.666 10.95 10.98 11.165 2.86022 3.95438 24.68 1481.73 1018.778 11.25 11.28 11.096 2.87287 3.97953 24.85 1481.69 1018.920 11.55 11.58 11.028 2.89017 4.01104 25.06 1481.70 1019.096 11.85 11.88 10.968 2.90221 4.03444 25.21 1481.68 1019.228 12.15 12.18 10.912 2.91586 4.05977 25.38 1481.68 1019.369 12.45 12.48 10.854 2.92488 4.07885 25.51 1481.63 1019.478 12.75 12.78 10.805 2.93483 4.09829 25.64 1481.62 1019.588 13.05 13.08 10.766 2.94918 4.12292 25.80 1481.68 1019.725 13.35 13.38 10.723 2.95455 4.13539 25.89 1481.63 1019.796 13.65 13.68 10.689 2.95758 4.14351 25.94 1481.57 1019.844 13.95 13.98 10.674 2.96366 4.15384 26.01 1481.61 1019.902 14.25 14.28 10.654 2.96966 4.16460 26.08 1481.62 1019.963 14.55 14.58 10.624 2.97719 4.17868 26.18 1481.63 1020.042 14.85 14.88 10.595 2.98136 4.18793 26.24 1481.61 1020.096 15.15 15.18 10.567 2.98720 4.19945 26.31 1481.60 1020.161 15.45 15.48 10.542 2.98880 4.20459 26.35 1481.56 1020.192 15.75 15.78 10.517 2.98992 4.20909 26.38 1481.51 1020.220 16.05 16.08 10.478 3.00081 4.22910 26.51 1481.53 1020.332 16.35 16.38 10.418 3.02690 4.27310 26.81 1481.68 1020.575 16.65 16.68 10.362 3.04413 4.30419 27.02 1481.73 1020.748 16.95 16.98 10.318 3.05447 4.32423 27.15 1481.74 1020.861 17.25 17.28 10.278 3.05843 4.33475 27.22 1481.68 1020.922 17.55 17.58 10.252 3.06512 4.34744 27.31 1481.70 1020.994 17.85 17.88 10.236 3.06846 4.35418 27.35 1481.70 1021.033 18.15 18.18 10.222 3.06885 4.35643 27.37 1481.67 1021.047 18.45 18.48 10.209 3.06950 4.35901 27.38 1481.64 1021.063 18.75 18.78 10.194 3.07123 4.36329 27.41 1481.63 1021.089 19.05 19.08 10.180 3.07390 4.36882 27.45 1481.63 1021.121 19.35 19.38 10.165 3.07744 4.37576 27.49 1481.63 1021.161 19.65 19.68 10.145 3.08570 4.38999 27.59 1481.68 1021.241 19.95 19.97 10.121 3.08957 4.39849 27.65 1481.67 1021.290 20.25 20.27 10.094 3.09350 4.40742 27.70 1481.65 1021.341 20.55 20.57 10.073 3.10584 4.42770 27.84 1481.74 1021.453 20.85 20.87 10.046 3.10943 4.43620 27.90 1481.71 1021.503 21.15 21.17 10.023 3.11038 4.44043 27.93 1481.67 1021.528 21.45 21.47 10.014 3.11149 4.44326 27.95 1481.66 1021.546 21.75 21.77 10.009 3.11205 4.44468 27.95 1481.66 1021.555 22.05 22.07 10.004 3.11268 4.44621 27.96 1481.66 1021.565 22.35 22.37 9.999 3.11373 4.44833 27.98 1481.66 1021.578 22.65 22.67 9.993 3.11421 4.44977 27.99 1481.66 1021.588 22.95 22.97 9.989 3.11426 4.45032 27.99 1481.65 1021.592 23.25 23.27 9.986 3.11487 4.45157 28.00 1481.65 1021.600 23.55 23.57 9.984 3.11527 4.45245 28.00 1481.66 1021.607 23.85 23.87 9.987 3.11610 4.45320 28.01 1481.68 1021.612 24.15 24.16 9.996 3.11640 4.45244 28.01 1481.72 1021.608 24.45 24.46 9.999 3.11639 4.45214 28.00 1481.73 1021.608 24.75 24.76 9.991 3.11739 4.45450 28.02 1481.72 1021.622 25.05 25.06 9.987 3.11692 4.45434 28.02 1481.71 1021.623 25.35 25.36 9.984 3.11836 4.45682 28.03 1481.72 1021.638 25.65 25.66 9.983 3.11833 4.45699 28.04 1481.72 1021.640 25.95 25.96 9.979 3.11998 4.45979 28.05 1481.74 1021.657 26.25 26.26 9.979 3.12153 4.46200 28.07 1481.76 1021.670 26.52 26.53 9.984 3.12241 4.46262 28.07 1481.79 1021.674