*2019/08/26 15:30:33.41 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:35:41.000 END TIME : UTC 2017/03/03 18:36:06.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 129 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.59 2 Depth metres 0.15 38.52 3 Temperature 'deg C (ITS90)' 7.311 7.812 4 Conductivity S/m 2.74799 2.94185 5 Conductance:Specific S/m 4.25126 4.48319 6 Salinity PSS-78 26.3 27.94 7 Speed:Sound m/s 1469.04 1473.64 8 Density kg/m^3 1020.539 1021.937 $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 : 331 LATITUDE : 49 17.89111 N ! (deg min) LONGITUDE : 123 5.01607 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 21:23:16 129 129 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:33 129 129 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:23:16 -HEADER EDITS: 2017/12/13 11:33:18 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_183541 % Cast time (UTC),2017-03-03 18:35:41 % Cast time (local),2017-03-03 18:35:41 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2981852 % Start longitude,-123.0836012 % Start altitude,-18.579999923706055 % Start GPS horizontal error(Meter),5.4800000190734863 % Start GPS vertical error(Meter),8.3199996948242188 % Start GPS number of satellites,9 % End latitude,49.2988202 % End longitude,-123.0834647 % End altitude,-16.399999618530273 % End GPS horizontal error(Meter),6.9800000190734863 % End GPS vertical error(Meter),10.899999618530273 % End GPS number of satellites,9 % Cast duration (Seconds),103.4 % 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 7.311 2.74814 4.25260 26.31 1469.04 1020.545 0.45 0.45 7.320 2.74799 4.25126 26.30 1469.07 1020.539 0.75 0.75 7.323 2.75411 4.26034 26.36 1469.16 1020.588 1.05 1.05 7.327 2.75469 4.26063 26.36 1469.19 1020.591 1.35 1.35 7.332 2.75591 4.26186 26.37 1469.22 1020.599 1.65 1.65 7.340 2.75903 4.26564 26.40 1469.29 1020.620 1.95 1.95 7.344 2.75878 4.26481 26.39 1469.30 1020.617 2.25 2.25 7.351 2.76215 4.26906 26.43 1469.37 1020.641 2.55 2.55 7.369 2.77024 4.27921 26.50 1469.54 1020.696 2.85 2.85 7.390 2.77830 4.28880 26.57 1469.71 1020.749 3.15 3.15 7.410 2.78885 4.30242 26.66 1469.91 1020.823 3.45 3.45 7.427 2.80624 4.32708 26.83 1470.19 1020.956 3.75 3.75 7.439 2.81001 4.33118 26.86 1470.29 1020.979 4.05 4.04 7.455 2.81446 4.33599 26.89 1470.39 1021.006 4.35 4.34 7.467 2.81789 4.33966 26.92 1470.48 1021.026 4.65 4.64 7.474 2.81965 4.34139 26.93 1470.53 1021.037 4.95 4.94 7.481 2.81950 4.34027 26.93 1470.55 1021.032 5.25 5.24 7.483 2.81992 4.34063 26.93 1470.57 1021.035 5.55 5.54 7.485 2.81986 4.34030 26.93 1470.58 1021.035 5.85 5.84 7.485 2.82021 4.34074 26.93 1470.59 1021.038 6.15 6.14 7.486 2.82163 4.34284 26.95 1470.61 1021.051 6.45 6.44 7.488 2.82285 4.34440 26.96 1470.64 1021.061 6.75 6.74 7.490 2.82151 4.34217 26.94 1470.63 1021.050 7.05 7.04 7.490 2.82065 4.34081 26.93 1470.63 1021.044 7.35 7.34 7.489 2.82137 4.34204 26.94 1470.64 1021.052 7.65 7.64 7.488 2.82303 4.34468 26.96 1470.66 1021.067 7.95 7.94 7.491 2.82346 4.34505 26.96 1470.68 1021.070 8.25 8.24 7.492 2.82332 4.34468 26.96 1470.68 1021.070 8.55 8.54 7.494 2.82315 4.34416 26.95 1470.69 1021.068 8.85 8.84 7.495 2.82378 4.34489 26.96 1470.71 1021.073 9.15 9.14 7.495 2.82345 4.34439 26.96 1470.71 1021.072 9.45 9.44 7.496 2.82420 4.34548 26.96 1470.73 1021.079 9.75 9.73 7.496 2.82414 4.34540 26.96 1470.73 1021.080 10.05 10.04 7.496 2.82390 4.34494 26.96 1470.73 1021.079 10.35 10.33 7.497 2.82424 4.34534 26.96 1470.75 1021.082 10.65 10.63 7.498 2.82406 4.34495 26.96 1470.75 1021.081 10.95 10.93 7.499 2.82401 4.34483 26.96 1470.76 1021.082 11.25 11.23 7.498 2.82393 4.34473 26.96 1470.76 1021.083 11.55 11.53 7.499 2.82375 4.34442 26.96 1470.76 1021.083 11.85 11.83 7.498 2.82424 4.34519 26.96 1470.77 1021.088 12.15 12.13 7.499 2.82428 4.34520 26.96 1470.78 1021.089 12.45 12.43 7.499 2.82431 4.34526 26.96 1470.79 1021.091 12.75 12.73 7.500 2.82496 4.34611 26.97 1470.80 1021.097 13.05 13.03 7.500 2.82477 4.34577 26.96 1470.81 1021.096 13.35 13.33 7.501 2.82460 4.34543 26.96 1470.81 1021.096 13.65 13.63 7.501 2.82466 4.34553 26.96 1470.81 1021.098 13.95 13.93 7.502 2.82473 4.34552 26.96 1470.82 1021.099 14.25 14.23 7.501 2.82505 4.34605 26.97 1470.83 1021.103 14.55 14.53 7.502 2.82456 4.34522 26.96 1470.83 1021.100 14.85 14.83 7.503 2.82466 4.34524 26.96 1470.84 1021.101 15.15 15.13 7.505 2.82524 4.34587 26.96 1470.86 1021.106 15.45 15.43 7.504 2.82534 4.34611 26.97 1470.86 1021.108 15.75 15.72 7.505 2.82532 4.34600 26.97 1470.87 1021.109 16.05 16.02 7.506 2.82569 4.34647 26.97 1470.88 1021.113 16.35 16.32 7.507 2.82579 4.34645 26.97 1470.89 1021.114 16.65 16.62 7.507 2.82572 4.34631 26.97 1470.89 1021.114 16.95 16.92 7.507 2.82609 4.34690 26.97 1470.90 1021.119 17.25 17.22 7.508 2.82648 4.34731 26.98 1470.92 1021.122 17.55 17.52 7.508 2.82582 4.34631 26.97 1470.91 1021.118 17.85 17.82 7.509 2.82602 4.34646 26.97 1470.92 1021.120 18.15 18.12 7.511 2.82650 4.34693 26.97 1470.94 1021.124 18.45 18.42 7.516 2.82677 4.34670 26.97 1470.96 1021.124 18.75 18.72 7.519 2.82896 4.34970 26.99 1471.01 1021.142 19.05 19.02 7.525 2.83210 4.35374 27.02 1471.07 1021.164 19.35 19.32 7.530 2.83392 4.35585 27.04 1471.11 1021.177 19.65 19.62 7.535 2.83614 4.35860 27.05 1471.16 1021.193 19.95 19.92 7.545 2.84274 4.36740 27.12 1471.28 1021.241 20.25 20.22 7.555 2.84728 4.37304 27.16 1471.37 1021.273 20.55 20.52 7.568 2.85121 4.37729 27.19 1471.47 1021.296 20.85 20.82 7.579 2.85657 4.38406 27.23 1471.57 1021.334 21.15 21.12 7.585 2.85703 4.38403 27.23 1471.60 1021.335 21.45 21.41 7.592 2.86016 4.38782 27.26 1471.67 1021.356 21.75 21.71 7.599 2.86314 4.39149 27.29 1471.73 1021.377 22.05 22.01 7.602 2.86452 4.39320 27.30 1471.76 1021.388 22.35 22.31 7.605 2.86577 4.39461 27.31 1471.80 1021.397 22.65 22.61 7.609 2.86720 4.39629 27.32 1471.83 1021.407 22.95 22.91 7.616 2.86947 4.39894 27.34 1471.88 1021.422 23.25 23.21 7.625 2.87103 4.40001 27.35 1471.94 1021.429 23.55 23.51 7.634 2.87502 4.40488 27.38 1472.02 1021.456 23.85 23.81 7.641 2.88043 4.41228 27.43 1472.11 1021.497 24.15 24.11 7.648 2.88420 4.41712 27.47 1472.19 1021.524 24.45 24.41 7.657 2.88540 4.41773 27.48 1472.23 1021.529 24.75 24.71 7.668 2.88750 4.41951 27.49 1472.30 1021.540 25.05 25.01 7.676 2.89028 4.42267 27.51 1472.36 1021.558 25.35 25.31 7.679 2.89253 4.42564 27.53 1472.41 1021.575 25.65 25.61 7.684 2.89915 4.43507 27.60 1472.51 1021.627 25.95 25.91 7.695 2.90518 4.44279 27.65 1472.63 1021.669 26.25 26.20 7.705 2.90684 4.44397 27.66 1472.68 1021.677 26.55 26.50 7.713 2.90799 4.44476 27.67 1472.72 1021.682 26.85 26.80 7.718 2.90905 4.44561 27.67 1472.76 1021.688 27.15 27.10 7.723 2.91023 4.44679 27.68 1472.79 1021.695 27.45 27.40 7.726 2.91077 4.44711 27.68 1472.81 1021.698 27.75 27.70 7.732 2.91237 4.44886 27.70 1472.85 1021.709 28.05 28.00 7.733 2.91359 4.45050 27.71 1472.88 1021.719 28.35 28.30 7.735 2.91474 4.45201 27.72 1472.90 1021.728 28.65 28.60 7.736 2.91555 4.45307 27.73 1472.92 1021.735 28.95 28.90 7.739 2.91560 4.45278 27.73 1472.94 1021.735 29.25 29.20 7.741 2.91680 4.45431 27.74 1472.96 1021.745 29.55 29.50 7.743 2.91668 4.45392 27.73 1472.97 1021.744 29.85 29.80 7.746 2.91697 4.45394 27.73 1472.99 1021.745 30.15 30.10 7.748 2.91731 4.45418 27.73 1473.00 1021.748 30.45 30.40 7.750 2.91806 4.45509 27.74 1473.02 1021.754 30.75 30.70 7.750 2.91888 4.45628 27.75 1473.04 1021.761 31.05 30.99 7.751 2.91899 4.45628 27.75 1473.05 1021.763 31.35 31.29 7.753 2.91994 4.45746 27.76 1473.07 1021.770 31.65 31.59 7.757 2.92041 4.45770 27.76 1473.09 1021.773 31.95 31.89 7.758 2.92127 4.45891 27.77 1473.11 1021.781 32.25 32.19 7.759 2.92233 4.46030 27.78 1473.13 1021.789 32.55 32.49 7.760 2.92194 4.45955 27.77 1473.14 1021.787 32.85 32.79 7.762 2.92230 4.45995 27.78 1473.15 1021.790 33.15 33.09 7.763 2.92229 4.45979 27.77 1473.16 1021.790 33.45 33.39 7.767 2.92225 4.45911 27.77 1473.17 1021.788 33.75 33.69 7.771 2.92419 4.46151 27.79 1473.22 1021.802 34.05 33.99 7.774 2.92538 4.46301 27.80 1473.24 1021.811 34.35 34.29 7.776 2.92591 4.46356 27.80 1473.26 1021.816 34.65 34.59 7.774 2.92726 4.46586 27.82 1473.28 1021.829 34.95 34.88 7.772 2.92810 4.46734 27.83 1473.29 1021.839 35.25 35.18 7.775 2.93277 4.47405 27.87 1473.36 1021.876 35.55 35.48 7.781 2.93390 4.47501 27.88 1473.40 1021.882 35.85 35.78 7.787 2.93586 4.47719 27.90 1473.45 1021.895 36.15 36.08 7.791 2.93718 4.47864 27.91 1473.48 1021.904 36.45 36.38 7.794 2.93668 4.47746 27.90 1473.49 1021.899 36.75 36.68 7.796 2.93739 4.47828 27.91 1473.51 1021.905 37.05 36.98 7.800 2.93666 4.47667 27.89 1473.51 1021.897 37.35 37.28 7.800 2.93989 4.48153 27.93 1473.56 1021.925 37.65 37.58 7.803 2.94087 4.48267 27.94 1473.59 1021.932 37.95 37.88 7.804 2.94134 4.48319 27.94 1473.60 1021.936 38.25 38.18 7.809 2.94120 4.48234 27.93 1473.62 1021.933 38.59 38.52 7.812 2.94185 4.48293 27.94 1473.64 1021.937