*2019/08/26 15:30:38.61 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/23 15:44:23.000 END TIME : UTC 2017/06/23 15:44:40.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 86 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.79 2 Depth metres 0.15 25.85 3 Temperature 'deg C (ITS90)' 10.796 14.275 4 Conductivity S/m 2.15514 2.78068 5 Conductance:Specific S/m 2.74362 3.88406 6 Salinity PSS-78 16.67 24.16 7 Speed:Sound m/s 1480 1484.17 8 Density kg/m^3 1012.023 1018.502 $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 : 574 LATITUDE : 49 18.15942 N ! (deg min) LONGITUDE : 122 58.84546 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 01:24:46 86 86 HDREDIT2 3.1.1 2017/12/13 11:33:22 ? ? CALIB 12.0 2019/08/26 15:30:38 86 86 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:24:45 -HEADER EDITS: 2017/12/13 11:33:22 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 15:30:38 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_20170623_154423mid % Cast time (UTC),2017-06-23 15:44:23 % Cast time (local),2017-06-23 15:44:23 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.302657 % Start longitude,-122.9807577 % Start altitude,-19.799999237060547 % Start GPS horizontal error(Meter),2.1099998950958252 % Start GPS vertical error(Meter),2.8299999237060547 % 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),85.6 % 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 14.275 2.15514 2.74362 16.67 1482.98 1012.023 0.45 0.45 14.222 2.23388 2.84771 17.36 1483.61 1012.564 0.75 0.76 14.164 2.26992 2.89799 17.69 1483.80 1012.832 1.05 1.06 14.132 2.29319 2.93004 17.91 1483.95 1013.002 1.35 1.36 14.117 2.30908 2.95149 18.05 1484.07 1013.116 1.65 1.66 14.066 2.33150 2.98402 18.26 1484.15 1013.292 1.95 1.96 13.995 2.35271 3.01670 18.48 1484.17 1013.472 2.25 2.26 13.861 2.36637 3.04467 18.66 1483.93 1013.637 2.55 2.57 13.682 2.38408 3.08167 18.90 1483.60 1013.855 2.85 2.87 13.578 2.40647 3.11901 19.15 1483.54 1014.064 3.15 3.17 13.469 2.43467 3.16447 19.45 1483.52 1014.316 3.45 3.47 13.313 2.47274 3.22699 19.86 1483.47 1014.663 3.75 3.77 13.139 2.52903 3.31558 20.45 1483.57 1015.149 4.05 4.07 13.009 2.57351 3.38543 20.92 1483.67 1015.532 4.35 4.37 12.854 2.60894 3.44607 21.32 1483.61 1015.871 4.65 4.67 12.720 2.62354 3.47764 21.53 1483.39 1016.055 4.95 4.98 12.588 2.64037 3.51229 21.76 1483.20 1016.255 5.25 5.28 12.486 2.65505 3.54135 21.95 1483.08 1016.421 5.55 5.58 12.427 2.66027 3.55397 22.03 1482.97 1016.496 5.85 5.88 12.360 2.67012 3.57352 22.16 1482.90 1016.608 6.15 6.18 12.312 2.67516 3.58481 22.23 1482.82 1016.675 6.45 6.48 12.286 2.67775 3.59077 22.27 1482.78 1016.710 6.75 6.78 12.252 2.68295 3.60110 22.34 1482.75 1016.770 7.05 7.08 12.218 2.68476 3.60681 22.38 1482.67 1016.806 7.35 7.38 12.200 2.68537 3.60933 22.39 1482.64 1016.822 7.65 7.68 12.184 2.68565 3.61133 22.41 1482.60 1016.836 7.95 7.98 12.167 2.68542 3.61264 22.41 1482.55 1016.846 8.25 8.29 12.148 2.68617 3.61546 22.43 1482.51 1016.865 8.55 8.59 12.126 2.68646 3.61804 22.45 1482.46 1016.882 8.85 8.89 12.096 2.68984 3.62551 22.50 1482.41 1016.926 9.15 9.19 12.062 2.69663 3.63798 22.58 1482.40 1016.997 9.45 9.49 12.027 2.70515 3.65298 22.68 1482.40 1017.082 9.75 9.79 11.986 2.71659 3.67250 22.81 1482.41 1017.191 10.05 10.09 11.936 2.72304 3.68617 22.90 1482.35 1017.270 10.35 10.39 11.903 2.72570 3.69302 22.95 1482.29 1017.311 10.65 10.69 11.877 2.72728 3.69784 22.98 1482.24 1017.341 10.95 10.99 11.852 2.72842 3.70187 23.00 1482.18 1017.366 11.25 11.29 11.825 2.72903 3.70541 23.02 1482.12 1017.389 11.55 11.59 11.806 2.73068 3.70952 23.05 1482.09 1017.414 11.85 11.89 11.796 2.73099 3.71101 23.06 1482.07 1017.424 12.15 12.19 11.786 2.73060 3.71150 23.06 1482.04 1017.429 12.45 12.49 11.774 2.73150 3.71385 23.08 1482.02 1017.444 12.75 12.79 11.754 2.73221 3.71687 23.10 1481.98 1017.464 13.05 13.10 11.730 2.73404 3.72181 23.13 1481.94 1017.494 13.35 13.39 11.709 2.73475 3.72492 23.15 1481.89 1017.514 13.65 13.70 11.690 2.73596 3.72852 23.17 1481.85 1017.536 13.95 14.00 11.674 2.73709 3.73167 23.19 1481.83 1017.556 14.25 14.30 11.664 2.73766 3.73346 23.20 1481.81 1017.568 14.55 14.60 11.656 2.73748 3.73400 23.21 1481.79 1017.573 14.85 14.90 11.646 2.73792 3.73564 23.22 1481.77 1017.584 15.15 15.20 11.635 2.73836 3.73740 23.23 1481.75 1017.596 15.45 15.50 11.619 2.73958 3.74064 23.25 1481.72 1017.616 15.75 15.80 11.599 2.74032 3.74371 23.27 1481.68 1017.635 16.05 16.10 11.573 2.74078 3.74704 23.29 1481.61 1017.657 16.35 16.40 11.534 2.74181 3.75244 23.32 1481.52 1017.691 16.65 16.70 11.488 2.74452 3.76090 23.38 1481.42 1017.742 16.95 17.00 11.434 2.74928 3.77291 23.45 1481.33 1017.812 17.25 17.30 11.386 2.75712 3.78872 23.56 1481.29 1017.903 17.55 17.60 11.321 2.76028 3.79984 23.63 1481.14 1017.969 17.85 17.90 11.242 2.76214 3.81064 23.70 1480.95 1018.036 18.15 18.20 11.194 2.76480 3.81946 23.75 1480.85 1018.089 18.45 18.50 11.166 2.76536 3.82314 23.78 1480.78 1018.112 18.75 18.80 11.145 2.76570 3.82584 23.79 1480.73 1018.130 19.05 19.10 11.121 2.76695 3.83015 23.82 1480.68 1018.156 19.35 19.41 11.101 2.76777 3.83341 23.84 1480.63 1018.177 19.65 19.70 11.086 2.76902 3.83667 23.86 1480.61 1018.197 19.95 20.00 11.071 2.77061 3.84044 23.89 1480.59 1018.220 20.25 20.31 11.056 2.77226 3.84443 23.91 1480.57 1018.244 20.55 20.61 11.038 2.77341 3.84790 23.93 1480.54 1018.265 20.85 20.91 11.024 2.77442 3.85083 23.95 1480.52 1018.283 21.15 21.21 11.011 2.77428 3.85196 23.96 1480.48 1018.292 21.45 21.51 11.002 2.77430 3.85301 23.97 1480.46 1018.299 21.75 21.81 10.992 2.77459 3.85448 23.98 1480.44 1018.310 22.05 22.11 10.983 2.77531 3.85639 23.99 1480.43 1018.322 22.35 22.41 10.966 2.77550 3.85848 24.00 1480.39 1018.336 22.65 22.71 10.953 2.77680 3.86171 24.02 1480.37 1018.356 22.95 23.01 10.949 2.77635 3.86153 24.02 1480.36 1018.356 23.25 23.31 10.949 2.77632 3.86152 24.02 1480.36 1018.357 23.55 23.61 10.942 2.77621 3.86211 24.02 1480.35 1018.363 23.85 23.91 10.932 2.77663 3.86373 24.03 1480.33 1018.373 24.15 24.21 10.918 2.77657 3.86514 24.04 1480.29 1018.383 24.45 24.51 10.906 2.77747 3.86774 24.06 1480.27 1018.400 24.75 24.81 10.879 2.77876 3.87239 24.09 1480.22 1018.428 25.05 25.11 10.847 2.77926 3.87658 24.11 1480.14 1018.455 25.35 25.41 10.809 2.77600 3.87611 24.11 1480.00 1018.457 25.79 25.85 10.796 2.78068 3.88406 24.16 1480.02 1018.502