*2019/08/26 15:30:33.77 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:54:03.000 END TIME : UTC 2017/03/03 18:54:20.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 88 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.37 2 Depth metres 0.15 26.32 3 Temperature 'deg C (ITS90)' 7.228 7.834 4 Conductivity S/m 2.3453 2.9523 5 Conductance:Specific S/m 3.63858 4.49586 6 Salinity PSS-78 22.16 28.04 7 Speed:Sound m/s 1463.56 1473.64 8 Density kg/m^3 1017.299 1021.954 $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 : 336 LATITUDE : 49 18.37189 N ! (deg min) LONGITUDE : 123 6.01580 W ! (deg min) *INSTRUMENT TYPE : SonTek CTD MODEL : CastAway SERIAL NUMBER : CC1545005 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------- ------ ---------- -------- --------- --------- READ_CHS_CTDS 1.0 2017/12/08 21:28:13 88 88 HDREDIT2 3.1.1 2017/12/13 11:33:19 ? ? CALIB 12.0 2019/08/26 15:30:33 88 88 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:28:13 -HEADER EDITS: 2017/12/13 11:33:19 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 15:30:33 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,CC1545005 % File name,CC1545005_20170303_185403 % Cast time (UTC),2017-03-03 18:54:03 % Cast time (local),2017-03-03 18:54:03 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3061981 % Start longitude,-123.1002633 % Start altitude,-19.610000610351562 % Start GPS horizontal error(Meter),2.4000000953674316 % Start GPS vertical error(Meter),4.0199999809265137 % Start GPS number of satellites,8 % End latitude,49.3061366 % End longitude,-123.1006929 % End altitude,-22.360000610351562 % End GPS horizontal error(Meter),5.21999979019165 % End GPS vertical error(Meter),7.75 % End GPS number of satellites,8 % Cast duration (Seconds),79.8 % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2015-11-20 % Temperature calibration date,2015-11-19 % Pressure calibration date,2015-11-17 % 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 7.228 2.34530 3.63858 22.16 1463.56 1017.299 0.45 0.45 7.266 2.45631 3.80639 23.29 1465.11 1018.180 0.75 0.75 7.292 2.57744 3.99088 24.53 1466.76 1019.155 1.05 1.05 7.307 2.60351 4.02935 24.79 1467.15 1019.360 1.35 1.35 7.316 2.60867 4.03620 24.84 1467.25 1019.397 1.65 1.65 7.328 2.62855 4.06549 25.04 1467.55 1019.554 1.95 1.95 7.338 2.65631 4.10709 25.32 1467.95 1019.776 2.25 2.25 7.351 2.68492 4.14973 25.61 1468.37 1020.004 2.55 2.55 7.364 2.71714 4.19774 25.94 1468.83 1020.261 2.85 2.85 7.380 2.74032 4.23146 26.17 1469.19 1020.442 3.15 3.15 7.397 2.76075 4.26080 26.38 1469.51 1020.600 3.45 3.45 7.412 2.77118 4.27489 26.47 1469.69 1020.677 3.75 3.75 7.426 2.78059 4.28757 26.56 1469.86 1020.745 4.05 4.05 7.436 2.78914 4.29942 26.64 1470.01 1020.810 4.35 4.35 7.443 2.79730 4.31108 26.72 1470.14 1020.874 4.65 4.65 7.456 2.80149 4.31584 26.76 1470.24 1020.900 4.95 4.95 7.469 2.80482 4.31918 26.78 1470.33 1020.919 5.25 5.25 7.481 2.80844 4.32317 26.81 1470.41 1020.942 5.55 5.55 7.493 2.81100 4.32561 26.83 1470.48 1020.956 5.85 5.85 7.503 2.81365 4.32827 26.85 1470.56 1020.971 6.15 6.14 7.515 2.82079 4.33771 26.91 1470.69 1021.023 6.45 6.45 7.524 2.82854 4.34845 26.99 1470.82 1021.082 6.75 6.74 7.530 2.83356 4.35527 27.04 1470.91 1021.119 7.05 7.04 7.538 2.83933 4.36305 27.09 1471.01 1021.162 7.35 7.34 7.548 2.84130 4.36478 27.10 1471.07 1021.173 7.65 7.64 7.553 2.84056 4.36294 27.09 1471.08 1021.164 7.95 7.94 7.556 2.84743 4.37317 27.16 1471.18 1021.220 8.25 8.24 7.574 2.85521 4.38272 27.23 1471.34 1021.272 8.55 8.54 7.587 2.85656 4.38291 27.23 1471.40 1021.275 8.85 8.84 7.592 2.85700 4.38293 27.23 1471.43 1021.276 9.15 9.14 7.596 2.85765 4.38344 27.24 1471.45 1021.280 9.45 9.44 7.598 2.85828 4.38414 27.24 1471.47 1021.285 9.75 9.74 7.600 2.85905 4.38497 27.25 1471.49 1021.291 10.05 10.04 7.602 2.85984 4.38595 27.25 1471.51 1021.297 10.35 10.34 7.606 2.86147 4.38802 27.27 1471.55 1021.309 10.65 10.64 7.608 2.86212 4.38872 27.27 1471.57 1021.314 10.95 10.94 7.608 2.86367 4.39102 27.29 1471.60 1021.328 11.25 11.24 7.610 2.86721 4.39615 27.33 1471.65 1021.357 11.55 11.54 7.616 2.86709 4.39526 27.32 1471.67 1021.353 11.85 11.84 7.621 2.86868 4.39694 27.33 1471.71 1021.363 12.15 12.13 7.627 2.86956 4.39747 27.34 1471.75 1021.367 12.45 12.43 7.633 2.87089 4.39871 27.35 1471.79 1021.375 12.75 12.73 7.638 2.87480 4.40403 27.38 1471.86 1021.405 13.05 13.03 7.644 2.87869 4.40923 27.42 1471.93 1021.434 13.35 13.33 7.647 2.88097 4.41227 27.44 1471.97 1021.452 13.65 13.63 7.651 2.88333 4.41541 27.46 1472.02 1021.470 13.95 13.93 7.657 2.88522 4.41750 27.48 1472.07 1021.482 14.25 14.23 7.663 2.88658 4.41880 27.49 1472.11 1021.491 14.55 14.53 7.668 2.88817 4.42056 27.50 1472.14 1021.501 14.85 14.83 7.671 2.88883 4.42104 27.50 1472.17 1021.505 15.15 15.13 7.675 2.88942 4.42144 27.51 1472.19 1021.508 15.45 15.43 7.683 2.89197 4.42432 27.53 1472.25 1021.525 15.75 15.73 7.690 2.89759 4.43186 27.58 1472.35 1021.567 16.05 16.03 7.696 2.90072 4.43584 27.61 1472.41 1021.589 16.35 16.33 7.703 2.90082 4.43514 27.60 1472.44 1021.587 16.65 16.62 7.704 2.90091 4.43516 27.60 1472.45 1021.588 16.95 16.92 7.705 2.89998 4.43355 27.59 1472.44 1021.581 17.25 17.22 7.709 2.90235 4.43658 27.61 1472.49 1021.598 17.55 17.52 7.715 2.90578 4.44109 27.65 1472.56 1021.624 17.85 17.82 7.720 2.90867 4.44479 27.67 1472.62 1021.645 18.15 18.12 7.722 2.90969 4.44601 27.68 1472.64 1021.653 18.45 18.42 7.728 2.91145 4.44791 27.69 1472.69 1021.664 18.75 18.72 7.732 2.91172 4.44786 27.69 1472.70 1021.665 19.05 19.02 7.736 2.91222 4.44801 27.70 1472.73 1021.667 19.35 19.32 7.738 2.91453 4.45129 27.72 1472.77 1021.686 19.65 19.62 7.740 2.91449 4.45099 27.72 1472.78 1021.685 19.95 19.92 7.741 2.91594 4.45302 27.73 1472.80 1021.698 20.25 20.22 7.745 2.91597 4.45254 27.73 1472.82 1021.696 20.55 20.52 7.747 2.91655 4.45309 27.73 1472.84 1021.700 20.85 20.82 7.750 2.91652 4.45271 27.73 1472.85 1021.700 21.15 21.11 7.751 2.91706 4.45335 27.73 1472.87 1021.704 21.45 21.41 7.752 2.91765 4.45416 27.74 1472.88 1021.710 21.75 21.71 7.753 2.91768 4.45401 27.74 1472.89 1021.710 22.05 22.01 7.757 2.91751 4.45332 27.73 1472.90 1021.708 22.35 22.31 7.760 2.91816 4.45385 27.74 1472.93 1021.712 22.65 22.61 7.763 2.91924 4.45511 27.75 1472.95 1021.720 22.95 22.91 7.768 2.91966 4.45509 27.75 1472.98 1021.721 23.25 23.21 7.770 2.92165 4.45776 27.77 1473.02 1021.737 23.55 23.51 7.772 2.92387 4.46093 27.79 1473.05 1021.755 23.85 23.81 7.772 2.93032 4.47073 27.86 1473.14 1021.809 24.15 24.11 7.781 2.93079 4.47029 27.85 1473.18 1021.808 24.45 24.41 7.785 2.93180 4.47125 27.86 1473.21 1021.814 24.75 24.71 7.788 2.93184 4.47093 27.86 1473.22 1021.814 25.05 25.01 7.789 2.93466 4.47502 27.89 1473.27 1021.837 25.35 25.30 7.795 2.93979 4.48206 27.93 1473.36 1021.876 25.65 25.60 7.808 2.94443 4.48736 27.97 1473.46 1021.906 25.95 25.90 7.826 2.94939 4.49251 28.01 1473.58 1021.934 26.37 26.32 7.834 2.95230 4.49586 28.04 1473.64 1021.954