*2019/08/26 15:30:32.66 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 00:30:34.000 END TIME : UTC 2017/03/03 00:30:52.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 95 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 28.43 2 Depth metres 0.15 28.39 3 Temperature 'deg C (ITS90)' 7.397 7.663 4 Conductivity S/m 2.76329 2.91132 5 Conductance:Specific S/m 4.26061 4.45659 6 Salinity PSS-78 26.38 27.74 7 Speed:Sound m/s 1469.59 1472.65 8 Density kg/m^3 1020.588 1021.755 $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 : 318 LATITUDE : 49 17.69033 N ! (deg min) LONGITUDE : 123 3.57248 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 21:10:15 95 95 HDREDIT2 3.1.1 2017/12/13 11:33:18 ? ? CALIB 12.0 2019/08/26 15:30:32 95 95 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:10:14 -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 15:30:32 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_003034 % Cast time (UTC),2017-03-03 00:30:34 % Cast time (local),2017-03-03 00:30:34 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2948389 % Start longitude,-123.0595413 % Start altitude,-12.260000228881836 % Start GPS horizontal error(Meter),9.40999984741211 % Start GPS vertical error(Meter),10.300000190734863 % Start GPS number of satellites,5 % End latitude,49.2950553 % End longitude,-123.0597021 % End altitude,-15.140000343322754 % End GPS horizontal error(Meter),7.4000000953674316 % End GPS vertical error(Meter),8.5200004577636719 % End GPS number of satellites,5 % Cast duration (Seconds),74.2 % 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 7.427 2.76360 4.26129 26.38 1469.59 1020.589 0.45 0.45 7.429 2.76355 4.26091 26.38 1469.60 1020.588 0.75 0.75 7.429 2.76342 4.26067 26.38 1469.60 1020.588 1.05 1.05 7.429 2.76336 4.26061 26.38 1469.60 1020.589 1.35 1.35 7.429 2.76344 4.26075 26.38 1469.61 1020.592 1.65 1.65 7.430 2.76384 4.26122 26.38 1469.62 1020.595 1.95 1.95 7.428 2.76406 4.26180 26.39 1469.62 1020.600 2.25 2.25 7.427 2.76338 4.26090 26.38 1469.62 1020.596 2.55 2.55 7.427 2.76342 4.26102 26.38 1469.62 1020.598 2.85 2.85 7.426 2.76356 4.26133 26.38 1469.63 1020.601 3.15 3.15 7.425 2.76346 4.26127 26.38 1469.63 1020.602 3.45 3.45 7.424 2.76377 4.26187 26.39 1469.63 1020.607 3.75 3.75 7.424 2.76372 4.26188 26.39 1469.63 1020.608 4.05 4.04 7.421 2.76397 4.26259 26.39 1469.64 1020.613 4.35 4.34 7.420 2.76392 4.26269 26.39 1469.64 1020.615 4.65 4.64 7.421 2.76329 4.26163 26.38 1469.63 1020.611 4.95 4.94 7.421 2.76365 4.26213 26.39 1469.64 1020.615 5.25 5.24 7.421 2.76400 4.26269 26.39 1469.65 1020.619 5.55 5.54 7.418 2.76388 4.26283 26.39 1469.65 1020.621 5.85 5.84 7.419 2.76485 4.26421 26.40 1469.67 1020.630 6.15 6.14 7.417 2.76478 4.26434 26.40 1469.67 1020.632 6.45 6.44 7.416 2.76475 4.26454 26.40 1469.67 1020.634 6.75 6.74 7.414 2.76466 4.26462 26.40 1469.66 1020.636 7.05 7.04 7.413 2.76575 4.26642 26.41 1469.68 1020.647 7.35 7.34 7.410 2.76564 4.26671 26.41 1469.67 1020.650 7.65 7.64 7.404 2.76556 4.26735 26.42 1469.66 1020.654 7.95 7.94 7.402 2.76522 4.26702 26.42 1469.66 1020.654 8.25 8.24 7.404 2.76461 4.26591 26.41 1469.66 1020.649 8.55 8.54 7.405 2.76398 4.26478 26.40 1469.66 1020.645 8.85 8.84 7.405 2.76380 4.26451 26.40 1469.66 1020.645 9.15 9.14 7.407 2.76408 4.26469 26.40 1469.67 1020.647 9.45 9.44 7.406 2.76343 4.26378 26.39 1469.67 1020.643 9.75 9.74 7.406 2.76453 4.26539 26.41 1469.69 1020.653 10.05 10.04 7.406 2.76416 4.26484 26.40 1469.69 1020.651 10.35 10.34 7.406 2.76507 4.26626 26.41 1469.70 1020.660 10.65 10.64 7.406 2.76591 4.26762 26.42 1469.72 1020.669 10.95 10.94 7.407 2.76549 4.26685 26.41 1469.72 1020.666 11.25 11.24 7.406 2.76434 4.26510 26.40 1469.71 1020.658 11.55 11.54 7.405 2.76449 4.26559 26.41 1469.71 1020.662 11.85 11.84 7.401 2.76551 4.26758 26.42 1469.72 1020.674 12.15 12.13 7.399 2.76605 4.26867 26.43 1469.73 1020.681 12.45 12.44 7.400 2.76650 4.26933 26.43 1469.74 1020.686 12.75 12.73 7.400 2.76646 4.26928 26.43 1469.74 1020.687 13.05 13.03 7.399 2.76657 4.26947 26.43 1469.75 1020.689 13.35 13.33 7.399 2.76696 4.27007 26.43 1469.76 1020.694 13.65 13.63 7.398 2.76672 4.26991 26.43 1469.75 1020.694 13.95 13.93 7.397 2.76749 4.27122 26.44 1469.77 1020.703 14.25 14.23 7.398 2.76837 4.27248 26.45 1469.78 1020.711 14.55 14.53 7.399 2.76887 4.27314 26.45 1469.80 1020.715 14.85 14.83 7.402 2.76927 4.27331 26.46 1469.82 1020.718 15.15 15.13 7.406 2.77050 4.27471 26.47 1469.85 1020.726 15.45 15.43 7.409 2.77036 4.27401 26.46 1469.86 1020.724 15.75 15.73 7.413 2.77024 4.27340 26.46 1469.88 1020.722 16.05 16.03 7.417 2.77377 4.27823 26.49 1469.94 1020.749 16.35 16.33 7.427 2.77739 4.28256 26.52 1470.02 1020.773 16.65 16.63 7.439 2.77912 4.28356 26.53 1470.09 1020.780 16.95 16.93 7.452 2.78036 4.28375 26.53 1470.15 1020.782 17.25 17.23 7.467 2.78185 4.28408 26.54 1470.21 1020.784 17.55 17.53 7.479 2.78583 4.28870 26.57 1470.31 1020.810 17.85 17.83 7.481 2.78822 4.29205 26.59 1470.35 1020.829 18.15 18.13 7.484 2.78828 4.29177 26.59 1470.36 1020.829 18.45 18.43 7.485 2.78892 4.29268 26.60 1470.38 1020.835 18.75 18.73 7.487 2.78952 4.29330 26.60 1470.40 1020.840 19.05 19.03 7.490 2.79040 4.29426 26.61 1470.42 1020.846 19.35 19.32 7.491 2.79159 4.29588 26.62 1470.45 1020.856 19.65 19.62 7.495 2.79204 4.29609 26.62 1470.47 1020.859 19.95 19.92 7.498 2.79447 4.29938 26.64 1470.51 1020.877 20.25 20.22 7.504 2.79875 4.30524 26.69 1470.59 1020.910 20.55 20.52 7.511 2.80203 4.30937 26.71 1470.66 1020.933 20.85 20.82 7.515 2.80413 4.31211 26.73 1470.70 1020.949 21.15 21.12 7.518 2.80493 4.31291 26.74 1470.73 1020.955 21.45 21.42 7.520 2.80693 4.31575 26.76 1470.76 1020.971 21.75 21.72 7.523 2.80791 4.31680 26.77 1470.79 1020.978 22.05 22.02 7.525 2.80814 4.31686 26.77 1470.81 1020.980 22.35 22.32 7.528 2.80956 4.31870 26.78 1470.84 1020.991 22.65 22.62 7.529 2.81064 4.32023 26.79 1470.86 1021.000 22.95 22.92 7.530 2.81137 4.32114 26.80 1470.88 1021.006 23.25 23.22 7.531 2.81245 4.32266 26.81 1470.90 1021.016 23.55 23.52 7.531 2.81376 4.32474 26.82 1470.92 1021.028 23.85 23.82 7.532 2.81480 4.32625 26.83 1470.94 1021.038 24.15 24.12 7.534 2.81697 4.32932 26.85 1470.98 1021.055 24.45 24.42 7.535 2.82242 4.33752 26.91 1471.06 1021.101 24.75 24.72 7.536 2.82610 4.34298 26.95 1471.11 1021.131 25.05 25.02 7.538 2.82830 4.34612 26.97 1471.15 1021.149 25.35 25.32 7.542 2.83232 4.35181 27.01 1471.22 1021.181 25.65 25.61 7.540 2.83637 4.35827 27.05 1471.27 1021.217 25.95 25.91 7.537 2.84808 4.37673 27.18 1471.42 1021.317 26.25 26.21 7.546 2.85699 4.38910 27.26 1471.57 1021.385 26.55 26.51 7.562 2.86406 4.39781 27.32 1471.71 1021.433 26.85 26.81 7.582 2.86567 4.39758 27.32 1471.80 1021.432 27.15 27.11 7.595 2.86739 4.39852 27.33 1471.86 1021.438 27.45 27.41 7.604 2.86979 4.40104 27.35 1471.92 1021.453 27.75 27.71 7.608 2.87861 4.41402 27.44 1472.05 1021.524 28.05 28.01 7.619 2.90274 4.44948 27.69 1472.41 1021.716 28.43 28.39 7.663 2.91132 4.45659 27.74 1472.65 1021.755