*2019/08/26 15:30:29.61 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/02/28 22:36:49.000 END TIME : UTC 2017/02/28 22:37:15.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.32 2 Depth metres 0.15 40.23 3 Temperature 'deg C (ITS90)' 7.627 7.875 4 Conductivity S/m 2.82205 2.96047 5 Conductance:Specific S/m 4.31557 4.50298 6 Salinity PSS-78 26.79 28.08 7 Speed:Sound m/s 1471.11 1474.08 8 Density kg/m^3 1020.875 1022.05 $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 : 272 LATITUDE : 49 17.61256 N ! (deg min) LONGITUDE : 123 5.09722 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 20:24:54 135 135 HDREDIT2 3.1.1 2017/12/13 11:33:17 ? ? CALIB 12.0 2019/08/26 15:30:29 135 135 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 20:24:53 -HEADER EDITS: 2017/12/13 11:33:17 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 15:30:29 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_20170228_223649 % Cast time (UTC),2017-02-28 22:36:49 % Cast time (local),2017-02-28 22:36:49 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2935426 % Start longitude,-123.0849536 % Start altitude,-19.530000686645508 % Start GPS horizontal error(Meter),4.7899999618530273 % Start GPS vertical error(Meter),7.7699999809265137 % Start GPS number of satellites,7 % End latitude,49.2936018 % End longitude,-123.0850764 % End altitude,7.25 % End GPS horizontal error(Meter),5.7399997711181641 % End GPS vertical error(Meter),9.0299997329711914 % End GPS number of satellites,7 % Cast duration (Seconds),145.2 % 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 7.696 2.82205 4.31557 26.79 1471.14 1020.875 0.45 0.45 7.692 2.82229 4.31650 26.80 1471.14 1020.881 0.75 0.75 7.691 2.82249 4.31694 26.80 1471.14 1020.885 1.05 1.05 7.687 2.82255 4.31760 26.80 1471.13 1020.890 1.35 1.35 7.680 2.82251 4.31836 26.81 1471.12 1020.895 1.65 1.65 7.677 2.82306 4.31962 26.82 1471.12 1020.903 1.95 1.95 7.672 2.82288 4.32008 26.82 1471.11 1020.907 2.25 2.25 7.668 2.82310 4.32089 26.82 1471.11 1020.913 2.55 2.55 7.668 2.82299 4.32070 26.82 1471.11 1020.913 2.85 2.85 7.664 2.82374 4.32246 26.83 1471.11 1020.924 3.15 3.15 7.657 2.82591 4.32660 26.86 1471.13 1020.948 3.45 3.44 7.654 2.82823 4.33065 26.89 1471.15 1020.971 3.75 3.74 7.649 2.83009 4.33405 26.91 1471.17 1020.990 4.05 4.04 7.647 2.83350 4.33956 26.95 1471.21 1021.021 4.35 4.34 7.645 2.83591 4.34358 26.97 1471.24 1021.044 4.65 4.64 7.641 2.84103 4.35198 27.03 1471.30 1021.091 4.95 4.94 7.637 2.84348 4.35621 27.06 1471.32 1021.115 5.25 5.24 7.634 2.84480 4.35860 27.07 1471.34 1021.129 5.55 5.54 7.632 2.84616 4.36099 27.09 1471.35 1021.143 5.85 5.84 7.630 2.84948 4.36636 27.13 1471.39 1021.173 6.15 6.14 7.628 2.85168 4.36998 27.15 1471.42 1021.194 6.45 6.44 7.628 2.85250 4.37130 27.16 1471.44 1021.202 6.75 6.74 7.627 2.85637 4.37730 27.20 1471.49 1021.236 7.05 7.04 7.627 2.85762 4.37920 27.21 1471.51 1021.247 7.35 7.34 7.628 2.85818 4.38000 27.22 1471.52 1021.253 7.65 7.64 7.628 2.85867 4.38076 27.22 1471.54 1021.258 7.95 7.94 7.628 2.85926 4.38166 27.23 1471.55 1021.264 8.25 8.24 7.628 2.85941 4.38186 27.23 1471.56 1021.267 8.55 8.54 7.628 2.85938 4.38183 27.23 1471.56 1021.268 8.85 8.84 7.628 2.85921 4.38153 27.23 1471.56 1021.268 9.15 9.13 7.628 2.85951 4.38205 27.23 1471.57 1021.272 9.45 9.43 7.628 2.85979 4.38239 27.23 1471.58 1021.275 9.75 9.73 7.628 2.85956 4.38209 27.23 1471.58 1021.275 10.05 10.03 7.627 2.85967 4.38236 27.23 1471.59 1021.277 10.35 10.33 7.627 2.85925 4.38175 27.23 1471.58 1021.275 10.65 10.63 7.627 2.85979 4.38253 27.23 1471.60 1021.281 10.95 10.93 7.627 2.85977 4.38248 27.23 1471.60 1021.282 11.25 11.23 7.628 2.85990 4.38256 27.23 1471.61 1021.284 11.55 11.53 7.628 2.85979 4.38240 27.23 1471.61 1021.284 11.85 11.83 7.628 2.86013 4.38289 27.24 1471.62 1021.288 12.15 12.13 7.629 2.86026 4.38304 27.24 1471.63 1021.290 12.45 12.43 7.629 2.86020 4.38290 27.24 1471.63 1021.290 12.75 12.73 7.630 2.85993 4.38240 27.23 1471.64 1021.289 13.05 13.03 7.630 2.86035 4.38305 27.24 1471.65 1021.294 13.35 13.33 7.629 2.86034 4.38308 27.24 1471.65 1021.295 13.65 13.63 7.630 2.86060 4.38335 27.24 1471.66 1021.298 13.95 13.93 7.632 2.86104 4.38386 27.24 1471.68 1021.302 14.25 14.22 7.632 2.86093 4.38365 27.24 1471.68 1021.302 14.55 14.53 7.634 2.86104 4.38354 27.24 1471.69 1021.303 14.85 14.82 7.635 2.86143 4.38397 27.24 1471.71 1021.306 15.15 15.12 7.636 2.86243 4.38538 27.25 1471.73 1021.315 15.45 15.42 7.637 2.86250 4.38537 27.25 1471.74 1021.317 15.75 15.72 7.639 2.86311 4.38598 27.26 1471.76 1021.321 16.05 16.02 7.643 2.86384 4.38661 27.26 1471.78 1021.326 16.35 16.32 7.644 2.86501 4.38823 27.27 1471.80 1021.336 16.65 16.62 7.647 2.86586 4.38919 27.28 1471.83 1021.342 16.95 16.92 7.651 2.86693 4.39033 27.29 1471.86 1021.349 17.25 17.22 7.653 2.86861 4.39253 27.30 1471.89 1021.362 17.55 17.52 7.656 2.86981 4.39397 27.32 1471.92 1021.371 17.85 17.82 7.660 2.87157 4.39621 27.33 1471.96 1021.385 18.15 18.12 7.661 2.87336 4.39876 27.35 1471.99 1021.400 18.45 18.42 7.663 2.87545 4.40167 27.37 1472.03 1021.417 18.75 18.72 7.667 2.87712 4.40375 27.38 1472.07 1021.429 19.05 19.02 7.671 2.87899 4.40602 27.40 1472.11 1021.442 19.35 19.32 7.673 2.88091 4.40870 27.42 1472.14 1021.458 19.65 19.61 7.676 2.88288 4.41129 27.43 1472.18 1021.473 19.95 19.91 7.682 2.88451 4.41304 27.45 1472.22 1021.484 20.25 20.21 7.684 2.88560 4.41435 27.46 1472.25 1021.492 20.55 20.51 7.689 2.88742 4.41653 27.47 1472.29 1021.505 20.85 20.81 7.694 2.88844 4.41740 27.48 1472.33 1021.511 21.15 21.11 7.698 2.88947 4.41839 27.49 1472.36 1021.517 21.45 21.41 7.703 2.89174 4.42121 27.51 1472.40 1021.534 21.75 21.71 7.709 2.89491 4.42523 27.54 1472.47 1021.556 22.05 22.01 7.717 2.89923 4.43074 27.57 1472.55 1021.587 22.35 22.31 7.726 2.90547 4.43911 27.63 1472.66 1021.633 22.65 22.61 7.732 2.90773 4.44177 27.65 1472.71 1021.649 22.95 22.91 7.735 2.90808 4.44182 27.65 1472.73 1021.650 23.25 23.21 7.738 2.90916 4.44307 27.66 1472.76 1021.658 23.55 23.51 7.742 2.90975 4.44339 27.66 1472.79 1021.661 23.85 23.81 7.745 2.91125 4.44539 27.68 1472.82 1021.673 24.15 24.11 7.746 2.91107 4.44494 27.67 1472.82 1021.672 24.45 24.40 7.748 2.91145 4.44524 27.68 1472.84 1021.675 24.75 24.70 7.749 2.91186 4.44574 27.68 1472.85 1021.679 25.05 25.00 7.750 2.91247 4.44654 27.68 1472.87 1021.684 25.35 25.30 7.752 2.91297 4.44704 27.69 1472.88 1021.688 25.65 25.60 7.752 2.91366 4.44801 27.70 1472.90 1021.695 25.95 25.90 7.753 2.91451 4.44920 27.70 1472.92 1021.703 26.25 26.20 7.755 2.91505 4.44974 27.71 1472.93 1021.707 26.55 26.50 7.758 2.91563 4.45028 27.71 1472.95 1021.711 26.85 26.80 7.760 2.91642 4.45122 27.72 1472.97 1021.717 27.15 27.10 7.763 2.91660 4.45110 27.72 1472.99 1021.718 27.45 27.40 7.765 2.91724 4.45174 27.72 1473.01 1021.723 27.75 27.70 7.769 2.91820 4.45270 27.73 1473.04 1021.729 28.05 28.00 7.773 2.91919 4.45368 27.74 1473.07 1021.735 28.35 28.30 7.776 2.92005 4.45455 27.74 1473.09 1021.741 28.65 28.59 7.780 2.92282 4.45828 27.77 1473.14 1021.763 28.95 28.89 7.787 2.92662 4.46307 27.80 1473.22 1021.789 29.25 29.19 7.792 2.92952 4.46676 27.83 1473.28 1021.811 29.55 29.49 7.801 2.93180 4.46904 27.84 1473.34 1021.824 29.85 29.79 7.806 2.93491 4.47310 27.87 1473.39 1021.847 30.15 30.09 7.810 2.93565 4.47365 27.88 1473.42 1021.851 30.45 30.39 7.816 2.93700 4.47498 27.89 1473.46 1021.859 30.75 30.69 7.818 2.93805 4.47629 27.90 1473.48 1021.868 31.05 30.99 7.818 2.93808 4.47626 27.90 1473.49 1021.869 31.35 31.29 7.820 2.93884 4.47718 27.90 1473.51 1021.875 31.65 31.59 7.820 2.93945 4.47812 27.91 1473.52 1021.881 31.95 31.89 7.821 2.93986 4.47862 27.91 1473.54 1021.885 32.25 32.19 7.821 2.94015 4.47906 27.92 1473.54 1021.889 32.55 32.48 7.822 2.94096 4.48020 27.92 1473.56 1021.896 32.85 32.78 7.823 2.94164 4.48108 27.93 1473.58 1021.902 33.15 33.08 7.824 2.94120 4.48022 27.92 1473.58 1021.899 33.45 33.38 7.825 2.94185 4.48115 27.93 1473.60 1021.905 33.75 33.68 7.825 2.94244 4.48195 27.94 1473.61 1021.911 34.05 33.98 7.826 2.94285 4.48244 27.94 1473.62 1021.915 34.35 34.28 7.827 2.94211 4.48121 27.93 1473.62 1021.909 34.65 34.58 7.827 2.94276 4.48220 27.94 1473.63 1021.916 34.95 34.88 7.827 2.94296 4.48250 27.94 1473.64 1021.919 35.25 35.18 7.829 2.94340 4.48296 27.94 1473.66 1021.923 35.55 35.48 7.829 2.94338 4.48289 27.94 1473.66 1021.924 35.85 35.78 7.831 2.94329 4.48254 27.94 1473.67 1021.923 36.15 36.08 7.831 2.94430 4.48404 27.95 1473.69 1021.932 36.45 36.38 7.832 2.94462 4.48432 27.95 1473.70 1021.935 36.75 36.67 7.833 2.94537 4.48537 27.96 1473.72 1021.942 37.05 36.97 7.834 2.94686 4.48748 27.97 1473.74 1021.955 37.35 37.27 7.838 2.94850 4.48945 27.99 1473.78 1021.967 37.65 37.57 7.841 2.94773 4.48791 27.98 1473.79 1021.959 37.95 37.87 7.843 2.94940 4.49022 27.99 1473.82 1021.973 38.25 38.17 7.846 2.95140 4.49274 28.01 1473.86 1021.988 38.55 38.47 7.849 2.95123 4.49210 28.01 1473.87 1021.986 38.85 38.77 7.849 2.95196 4.49316 28.01 1473.88 1021.993 39.15 39.07 7.852 2.95589 4.49873 28.05 1473.95 1022.024 39.45 39.37 7.860 2.95768 4.50044 28.07 1474.00 1022.034 39.75 39.67 7.867 2.95969 4.50246 28.08 1474.05 1022.046 40.05 39.97 7.872 2.96047 4.50298 28.08 1474.08 1022.050 40.32 40.23 7.875 2.95979 4.50163 28.07 1474.08 1022.044