*2019/08/26 15:30:33.35 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:32:02.000 END TIME : UTC 2017/03/03 18:32:29.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.57 2 Depth metres 0.15 40.49 3 Temperature 'deg C (ITS90)' 7.316 7.836 4 Conductivity S/m 2.74961 2.94735 5 Conductance:Specific S/m 4.25289 4.48866 6 Salinity PSS-78 26.31 27.98 7 Speed:Sound m/s 1469.07 1473.81 8 Density kg/m^3 1020.547 1021.973 $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 : 330 LATITUDE : 49 17.60720 N ! (deg min) LONGITUDE : 123 5.08477 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 21:22:11 136 136 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:33 136 136 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:22:11 -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_183202 % Cast time (UTC),2017-03-03 18:32:02 % Cast time (local),2017-03-03 18:32:02 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2934534 % Start longitude,-123.0847461 % Start altitude,-16.680000305175781 % Start GPS horizontal error(Meter),1.4299999475479126 % Start GPS vertical error(Meter),2.0999999046325684 % Start GPS number of satellites,9 % End latitude,49.2936594 % End longitude,-123.084904 % End altitude,-15.800000190734863 % End GPS horizontal error(Meter),5.2399997711181641 % End GPS vertical error(Meter),6.7399997711181641 % End GPS number of satellites,9 % Cast duration (Seconds),101.4 % 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 7.316 2.74961 4.25424 26.32 1469.07 1020.553 0.45 0.45 7.328 2.74976 4.25289 26.31 1469.12 1020.547 0.75 0.75 7.346 2.75198 4.25402 26.32 1469.20 1020.554 1.05 1.05 7.364 2.75547 4.25700 26.34 1469.31 1020.571 1.35 1.35 7.385 2.76678 4.27171 26.45 1469.52 1020.651 1.65 1.65 7.396 2.77817 4.28784 26.56 1469.71 1020.738 1.95 1.95 7.399 2.78164 4.29277 26.59 1469.77 1020.766 2.25 2.25 7.407 2.78481 4.29658 26.62 1469.84 1020.787 2.55 2.55 7.416 2.79086 4.30480 26.68 1469.95 1020.833 2.85 2.85 7.422 2.79258 4.30661 26.69 1469.99 1020.844 3.15 3.15 7.427 2.79439 4.30875 26.71 1470.04 1020.856 3.45 3.44 7.433 2.79740 4.31263 26.73 1470.10 1020.878 3.75 3.75 7.438 2.79784 4.31254 26.73 1470.12 1020.879 4.05 4.04 7.442 2.79827 4.31272 26.73 1470.14 1020.881 4.35 4.34 7.442 2.79832 4.31274 26.73 1470.15 1020.883 4.65 4.64 7.442 2.79947 4.31454 26.75 1470.17 1020.893 4.95 4.94 7.443 2.79980 4.31495 26.75 1470.18 1020.897 5.25 5.24 7.444 2.80119 4.31691 26.76 1470.21 1020.909 5.55 5.54 7.446 2.80212 4.31815 26.77 1470.23 1020.917 5.85 5.84 7.448 2.80403 4.32080 26.79 1470.27 1020.932 6.15 6.14 7.449 2.80358 4.31995 26.78 1470.27 1020.929 6.45 6.44 7.450 2.80355 4.31979 26.78 1470.28 1020.929 6.75 6.74 7.452 2.80379 4.31996 26.78 1470.29 1020.931 7.05 7.04 7.453 2.80401 4.32017 26.79 1470.30 1020.934 7.35 7.34 7.454 2.80503 4.32157 26.80 1470.32 1020.943 7.65 7.64 7.456 2.80608 4.32292 26.80 1470.35 1020.951 7.95 7.94 7.457 2.80694 4.32408 26.81 1470.36 1020.959 8.25 8.24 7.459 2.80756 4.32484 26.82 1470.38 1020.964 8.55 8.54 7.459 2.80720 4.32423 26.81 1470.38 1020.962 8.85 8.84 7.459 2.80705 4.32394 26.81 1470.39 1020.962 9.15 9.14 7.459 2.80704 4.32397 26.81 1470.39 1020.963 9.45 9.44 7.458 2.80657 4.32343 26.81 1470.38 1020.962 9.75 9.74 7.458 2.80692 4.32391 26.81 1470.40 1020.965 10.05 10.04 7.460 2.80720 4.32411 26.81 1470.41 1020.968 10.35 10.34 7.462 2.80753 4.32438 26.81 1470.42 1020.970 10.65 10.63 7.462 2.80735 4.32403 26.81 1470.43 1020.970 10.95 10.93 7.464 2.80749 4.32400 26.81 1470.44 1020.971 11.25 11.23 7.469 2.80828 4.32462 26.82 1470.47 1020.976 11.55 11.53 7.471 2.81002 4.32694 26.83 1470.50 1020.989 11.85 11.83 7.473 2.81135 4.32878 26.84 1470.53 1021.000 12.15 12.13 7.476 2.81341 4.33154 26.86 1470.57 1021.016 12.45 12.43 7.477 2.81512 4.33408 26.88 1470.60 1021.031 12.75 12.73 7.480 2.81743 4.33713 26.90 1470.65 1021.049 13.05 13.03 7.485 2.81975 4.34010 26.92 1470.69 1021.066 13.35 13.33 7.492 2.82139 4.34170 26.94 1470.74 1021.076 13.65 13.63 7.498 2.82185 4.34153 26.93 1470.77 1021.076 13.95 13.93 7.502 2.82311 4.34297 26.95 1470.80 1021.085 14.25 14.23 7.505 2.82380 4.34363 26.95 1470.83 1021.090 14.55 14.53 7.508 2.82390 4.34339 26.95 1470.84 1021.090 14.85 14.83 7.512 2.82533 4.34503 26.96 1470.88 1021.100 15.15 15.13 7.518 2.82850 4.34914 26.99 1470.94 1021.123 15.45 15.43 7.523 2.83109 4.35248 27.01 1470.99 1021.142 15.75 15.73 7.525 2.83328 4.35551 27.03 1471.03 1021.160 16.05 16.02 7.528 2.83490 4.35764 27.05 1471.07 1021.172 16.35 16.32 7.531 2.83760 4.36137 27.07 1471.12 1021.194 16.65 16.62 7.538 2.83966 4.36362 27.09 1471.17 1021.207 16.95 16.92 7.543 2.84108 4.36512 27.10 1471.20 1021.216 17.25 17.22 7.548 2.84220 4.36620 27.11 1471.24 1021.223 17.55 17.52 7.552 2.84308 4.36701 27.12 1471.27 1021.229 17.85 17.82 7.556 2.84475 4.36907 27.13 1471.30 1021.241 18.15 18.12 7.559 2.84597 4.37045 27.14 1471.34 1021.250 18.45 18.42 7.561 2.84693 4.37168 27.15 1471.36 1021.257 18.75 18.72 7.565 2.84711 4.37144 27.15 1471.38 1021.257 19.05 19.02 7.567 2.84787 4.37229 27.15 1471.40 1021.263 19.35 19.32 7.570 2.84884 4.37338 27.16 1471.42 1021.270 19.65 19.62 7.574 2.84911 4.37333 27.16 1471.44 1021.271 19.95 19.92 7.575 2.84896 4.37295 27.16 1471.45 1021.270 20.25 20.22 7.576 2.84990 4.37421 27.17 1471.47 1021.279 20.55 20.52 7.578 2.84988 4.37393 27.16 1471.48 1021.278 20.85 20.82 7.579 2.85072 4.37505 27.17 1471.50 1021.286 21.15 21.12 7.583 2.85102 4.37502 27.17 1471.52 1021.287 21.45 21.42 7.586 2.85147 4.37526 27.18 1471.54 1021.289 21.75 21.71 7.590 2.85347 4.37788 27.19 1471.58 1021.304 22.05 22.01 7.593 2.85504 4.37978 27.21 1471.62 1021.316 22.35 22.31 7.594 2.85825 4.38457 27.24 1471.66 1021.343 22.65 22.61 7.597 2.86113 4.38863 27.27 1471.71 1021.366 22.95 22.91 7.601 2.86373 4.39213 27.29 1471.77 1021.386 23.25 23.21 7.607 2.86414 4.39198 27.29 1471.79 1021.386 23.55 23.51 7.612 2.86512 4.39268 27.30 1471.83 1021.391 23.85 23.81 7.616 2.86600 4.39359 27.30 1471.85 1021.397 24.15 24.11 7.619 2.86982 4.39894 27.34 1471.92 1021.427 24.45 24.41 7.625 2.87362 4.40397 27.38 1471.99 1021.455 24.75 24.71 7.629 2.87495 4.40550 27.39 1472.02 1021.465 25.05 25.01 7.633 2.87595 4.40646 27.39 1472.05 1021.471 25.35 25.31 7.636 2.87674 4.40730 27.40 1472.08 1021.477 25.65 25.61 7.642 2.87831 4.40885 27.41 1472.12 1021.487 25.95 25.91 7.648 2.88047 4.41137 27.43 1472.17 1021.501 26.25 26.21 7.651 2.88471 4.41744 27.47 1472.24 1021.535 26.55 26.50 7.655 2.88582 4.41860 27.48 1472.27 1021.543 26.85 26.80 7.658 2.88683 4.41975 27.49 1472.30 1021.550 27.15 27.10 7.661 2.88808 4.42132 27.50 1472.32 1021.560 27.45 27.40 7.662 2.88908 4.42266 27.51 1472.35 1021.568 27.75 27.70 7.664 2.88980 4.42351 27.51 1472.37 1021.574 28.05 28.00 7.667 2.89113 4.42520 27.53 1472.39 1021.584 28.35 28.30 7.671 2.89164 4.42546 27.53 1472.42 1021.587 28.65 28.60 7.674 2.89220 4.42590 27.53 1472.44 1021.591 28.95 28.90 7.678 2.89400 4.42808 27.55 1472.48 1021.603 29.25 29.20 7.683 2.89649 4.43119 27.57 1472.53 1021.621 29.55 29.50 7.691 2.89970 4.43508 27.60 1472.60 1021.643 29.85 29.80 7.696 2.90104 4.43640 27.61 1472.64 1021.652 30.15 30.10 7.700 2.90338 4.43940 27.63 1472.68 1021.669 30.45 30.40 7.707 2.90701 4.44401 27.66 1472.76 1021.695 30.75 30.70 7.716 2.91175 4.45007 27.70 1472.85 1021.729 31.05 31.00 7.723 2.91481 4.45381 27.73 1472.91 1021.750 31.35 31.30 7.728 2.91606 4.45498 27.74 1472.95 1021.757 31.65 31.59 7.732 2.91656 4.45527 27.74 1472.97 1021.760 31.95 31.89 7.735 2.91649 4.45471 27.74 1472.98 1021.758 32.25 32.19 7.738 2.91693 4.45499 27.74 1473.00 1021.761 32.55 32.49 7.739 2.91704 4.45496 27.74 1473.01 1021.762 32.85 32.79 7.742 2.91793 4.45588 27.75 1473.04 1021.769 33.15 33.09 7.747 2.91890 4.45674 27.75 1473.07 1021.774 33.45 33.39 7.751 2.92158 4.46028 27.78 1473.12 1021.795 33.75 33.69 7.754 2.92321 4.46241 27.79 1473.15 1021.807 34.05 33.99 7.757 2.92485 4.46444 27.81 1473.19 1021.819 34.35 34.29 7.762 2.92518 4.46427 27.80 1473.21 1021.820 34.65 34.59 7.764 2.92486 4.46360 27.80 1473.22 1021.817 34.95 34.89 7.764 2.92602 4.46528 27.81 1473.24 1021.828 35.25 35.19 7.764 2.92531 4.46417 27.80 1473.24 1021.823 35.55 35.48 7.765 2.92545 4.46431 27.80 1473.24 1021.825 35.85 35.78 7.767 2.92613 4.46510 27.81 1473.26 1021.831 36.15 36.08 7.768 2.92680 4.46589 27.82 1473.28 1021.836 36.45 36.38 7.770 2.92785 4.46734 27.83 1473.30 1021.845 36.75 36.68 7.770 2.92846 4.46814 27.83 1473.32 1021.851 37.05 36.98 7.772 2.92835 4.46772 27.83 1473.33 1021.850 37.35 37.28 7.773 2.92912 4.46881 27.84 1473.34 1021.857 37.65 37.58 7.773 2.92906 4.46873 27.84 1473.35 1021.858 37.95 37.88 7.774 2.93085 4.47132 27.85 1473.38 1021.873 38.25 38.18 7.777 2.93172 4.47221 27.86 1473.40 1021.879 38.55 38.48 7.783 2.93701 4.47946 27.91 1473.49 1021.919 38.85 38.78 7.801 2.94364 4.48715 27.97 1473.63 1021.961 39.15 39.08 7.814 2.94471 4.48691 27.97 1473.69 1021.961 39.45 39.38 7.820 2.94527 4.48704 27.97 1473.72 1021.963 39.75 39.67 7.823 2.94660 4.48866 27.98 1473.75 1021.973 40.05 39.97 7.832 2.94652 4.48732 27.97 1473.78 1021.967 40.35 40.27 7.835 2.94730 4.48803 27.98 1473.81 1021.972 40.57 40.49 7.836 2.94735 4.48798 27.98 1473.81 1021.973