*2019/08/26 15:30:33.71 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/03 18:47:47.000 END TIME : UTC 2017/03/03 18:48:03.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 84 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.1 2 Depth metres 0.15 25.06 3 Temperature 'deg C (ITS90)' 7.345 7.686 4 Conductivity S/m 1.92117 2.88731 5 Conductance:Specific S/m 2.9698 4.41671 6 Salinity PSS-78 17.76 27.47 7 Speed:Sound m/s 1458.57 1472.36 8 Density kg/m^3 1013.838 1021.526 $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 : 335 LATITUDE : 49 18.63437 N ! (deg min) LONGITUDE : 123 5.76721 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 21:27:15 84 84 HDREDIT2 3.1.1 2017/12/13 11:33:19 ? ? CALIB 12.0 2019/08/26 15:30:33 84 84 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 21:27:15 -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_184747 % Cast time (UTC),2017-03-03 18:47:47 % Cast time (local),2017-03-03 18:47:47 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3105729 % Start longitude,-123.0961201 % Start altitude,-13.409999847412109 % Start GPS horizontal error(Meter),4.8400001525878906 % Start GPS vertical error(Meter),7.320000171661377 % Start GPS number of satellites,9 % End latitude,49.3107126 % End longitude,-123.0960204 % End altitude,-12.140000343322754 % End GPS horizontal error(Meter),4.4499998092651367 % End GPS vertical error(Meter),7.2100000381469727 % End GPS number of satellites,8 % Cast duration (Seconds),69.8 % 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 7.345 1.92117 2.96980 17.76 1458.57 1013.838 0.45 0.45 7.426 2.51209 3.87352 23.76 1466.33 1018.530 0.75 0.75 7.462 2.72360 4.19509 25.94 1469.18 1020.238 1.05 1.05 7.470 2.77238 4.26912 26.44 1469.84 1020.634 1.35 1.35 7.471 2.78269 4.28491 26.55 1469.98 1020.720 1.65 1.65 7.469 2.78944 4.29556 26.62 1470.07 1020.778 1.95 1.95 7.468 2.79464 4.30369 26.68 1470.14 1020.823 2.25 2.25 7.474 2.79745 4.30721 26.70 1470.20 1020.843 2.55 2.55 7.479 2.79874 4.30860 26.71 1470.24 1020.852 2.85 2.85 7.482 2.79916 4.30882 26.71 1470.26 1020.854 3.15 3.15 7.485 2.80004 4.30977 26.72 1470.28 1020.861 3.45 3.45 7.487 2.80146 4.31171 26.73 1470.31 1020.872 3.75 3.75 7.489 2.80168 4.31168 26.73 1470.33 1020.873 4.05 4.05 7.490 2.80285 4.31344 26.75 1470.35 1020.884 4.35 4.35 7.491 2.80380 4.31468 26.75 1470.37 1020.892 4.65 4.65 7.492 2.80325 4.31375 26.75 1470.37 1020.888 4.95 4.95 7.493 2.80235 4.31224 26.74 1470.36 1020.882 5.25 5.25 7.495 2.80176 4.31111 26.73 1470.37 1020.877 5.55 5.54 7.495 2.80321 4.31328 26.75 1470.39 1020.890 5.85 5.84 7.497 2.80502 4.31584 26.76 1470.42 1020.905 6.15 6.14 7.498 2.80647 4.31798 26.78 1470.45 1020.917 6.45 6.44 7.499 2.80776 4.31976 26.79 1470.47 1020.928 6.75 6.74 7.500 2.80825 4.32033 26.79 1470.49 1020.933 7.05 7.04 7.501 2.81046 4.32367 26.82 1470.53 1020.952 7.35 7.34 7.503 2.81139 4.32481 26.82 1470.55 1020.959 7.65 7.64 7.505 2.81459 4.32953 26.86 1470.60 1020.986 7.95 7.94 7.506 2.81585 4.33122 26.87 1470.63 1020.996 8.25 8.24 7.506 2.82059 4.33852 26.92 1470.69 1021.036 8.55 8.54 7.509 2.82298 4.34189 26.94 1470.73 1021.056 8.85 8.84 7.511 2.82338 4.34217 26.94 1470.75 1021.059 9.15 9.14 7.516 2.82537 4.34456 26.96 1470.80 1021.073 9.45 9.44 7.521 2.82939 4.35011 27.00 1470.87 1021.104 9.75 9.74 7.524 2.83176 4.35335 27.02 1470.91 1021.122 10.05 10.04 7.526 2.83403 4.35657 27.04 1470.95 1021.141 10.35 10.34 7.530 2.83672 4.36016 27.07 1471.01 1021.161 10.65 10.64 7.533 2.83875 4.36292 27.09 1471.05 1021.177 10.95 10.94 7.536 2.84105 4.36603 27.11 1471.09 1021.195 11.25 11.24 7.540 2.84233 4.36749 27.12 1471.12 1021.204 11.55 11.54 7.542 2.84361 4.36911 27.13 1471.15 1021.214 11.85 11.83 7.546 2.84545 4.37146 27.15 1471.19 1021.228 12.15 12.13 7.550 2.84621 4.37209 27.15 1471.22 1021.233 12.45 12.43 7.554 2.84750 4.37354 27.16 1471.25 1021.242 12.75 12.73 7.556 2.84807 4.37417 27.17 1471.27 1021.246 13.05 13.03 7.558 2.84815 4.37393 27.17 1471.28 1021.246 13.35 13.33 7.562 2.84828 4.37358 27.16 1471.30 1021.246 13.65 13.63 7.565 2.84930 4.37482 27.17 1471.32 1021.253 13.95 13.93 7.569 2.85015 4.37552 27.18 1471.35 1021.258 14.25 14.23 7.572 2.85122 4.37681 27.19 1471.38 1021.267 14.55 14.53 7.573 2.85208 4.37805 27.20 1471.40 1021.275 14.85 14.83 7.574 2.85295 4.37913 27.20 1471.42 1021.282 15.15 15.13 7.577 2.85270 4.37845 27.20 1471.43 1021.279 15.45 15.43 7.579 2.85448 4.38088 27.21 1471.46 1021.294 15.75 15.73 7.583 2.85515 4.38135 27.22 1471.49 1021.297 16.05 16.03 7.584 2.85561 4.38193 27.22 1471.50 1021.302 16.35 16.33 7.587 2.85697 4.38364 27.23 1471.53 1021.312 16.65 16.63 7.591 2.85757 4.38400 27.24 1471.56 1021.315 16.95 16.93 7.594 2.85840 4.38480 27.24 1471.58 1021.321 17.25 17.22 7.596 2.85890 4.38537 27.25 1471.60 1021.325 17.55 17.52 7.600 2.85850 4.38417 27.24 1471.61 1021.320 17.85 17.82 7.604 2.85888 4.38421 27.24 1471.63 1021.321 18.15 18.12 7.608 2.85932 4.38444 27.24 1471.65 1021.324 18.45 18.42 7.610 2.86020 4.38550 27.25 1471.67 1021.331 18.75 18.72 7.612 2.86103 4.38644 27.26 1471.70 1021.337 19.05 19.02 7.615 2.86130 4.38643 27.26 1471.71 1021.338 19.35 19.32 7.617 2.86139 4.38638 27.26 1471.72 1021.339 19.65 19.62 7.618 2.86169 4.38668 27.26 1471.74 1021.342 19.95 19.92 7.616 2.86160 4.38683 27.26 1471.73 1021.344 20.25 20.22 7.616 2.86137 4.38642 27.26 1471.74 1021.343 20.55 20.52 7.619 2.86162 4.38638 27.26 1471.75 1021.344 20.85 20.82 7.621 2.86208 4.38685 27.26 1471.77 1021.348 21.15 21.12 7.622 2.86167 4.38606 27.25 1471.77 1021.345 21.45 21.42 7.626 2.86219 4.38640 27.26 1471.79 1021.348 21.75 21.72 7.631 2.86468 4.38950 27.28 1471.85 1021.366 22.05 22.02 7.636 2.86651 4.39160 27.29 1471.89 1021.378 22.35 22.32 7.640 2.86716 4.39217 27.30 1471.91 1021.383 22.65 22.61 7.638 2.86694 4.39205 27.30 1471.91 1021.383 22.95 22.91 7.639 2.86965 4.39604 27.32 1471.95 1021.406 23.25 23.21 7.647 2.87432 4.40218 27.37 1472.04 1021.440 23.55 23.51 7.653 2.88015 4.41021 27.42 1472.14 1021.485 23.85 23.81 7.666 2.88525 4.41631 27.47 1472.25 1021.518 24.15 24.11 7.675 2.88589 4.41599 27.47 1472.29 1021.518 24.45 24.41 7.681 2.88629 4.41581 27.46 1472.32 1021.518 24.75 24.71 7.684 2.88685 4.41633 27.47 1472.34 1021.522 25.10 25.06 7.686 2.88731 4.41671 27.47 1472.36 1021.526