*2019/08/26 15:30:37.58 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/22 20:43:43.000 END TIME : UTC 2017/06/22 20:44:11.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 144 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.15 2 Depth metres 0.15 43.23 3 Temperature 'deg C (ITS90)' 11.581 11.887 4 Conductivity S/m 2.70958 2.73746 5 Conductance:Specific S/m 3.67544 3.74166 6 Salinity PSS-78 22.83 23.24 7 Speed:Sound m/s 1481.73 1482.05 8 Density kg/m^3 1017.177 1017.742 $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 : 550 LATITUDE : 49 17.65243 N ! (deg min) LONGITUDE : 123 0.37528 W ! (deg min) *INSTRUMENT TYPE : SonTek CTD MODEL : CastAway SERIAL NUMBER : CC1606003 *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! ------------- ------ ---------- -------- --------- --------- READ_CHS_CTDS 1.0 2017/12/09 01:00:42 144 144 HDREDIT2 3.1.1 2017/12/13 11:33:22 ? ? CALIB 12.0 2019/08/26 15:30:37 144 144 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:00:41 -HEADER EDITS: 2017/12/13 11:33:22 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 15:30:37 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,CC1606003 % File name,CC1606003_20170622_204343mid % Cast time (UTC),2017-06-22 20:43:43 % Cast time (local),2017-06-22 20:43:43 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2942071 % Start longitude,-123.0062546 % Start altitude,-22.3700008392334 % Start GPS horizontal error(Meter),1.5700000524520874 % Start GPS vertical error(Meter),2.7799999713897705 % Start GPS number of satellites,8 % End latitude,49.2946004 % End longitude,-123.0047278 % End altitude,-38.810001373291016 % End GPS horizontal error(Meter),21 % End GPS vertical error(Meter),6.559999942779541 % End GPS number of satellites,0 % Cast duration (Seconds),94.4 % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2016-03-01 % Temperature calibration date,2016-02-23 % Pressure calibration date,2016-02-12 % 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 11.883 2.71392 3.67905 22.85 1481.94 1017.195 0.45 0.45 11.887 2.71153 3.67544 22.83 1481.93 1017.177 0.75 0.75 11.868 2.71165 3.67749 22.84 1481.88 1017.191 1.05 1.05 11.853 2.71223 3.67982 22.85 1481.85 1017.206 1.35 1.35 11.848 2.71259 3.68078 22.86 1481.84 1017.213 1.65 1.65 11.836 2.71306 3.68260 22.87 1481.82 1017.226 1.95 1.95 11.840 2.71016 3.67830 22.84 1481.80 1017.204 2.25 2.25 11.850 2.71004 3.67712 22.84 1481.84 1017.198 2.55 2.56 11.847 2.70978 3.67707 22.83 1481.83 1017.199 2.85 2.86 11.847 2.70958 3.67684 22.83 1481.83 1017.199 3.15 3.16 11.844 2.71499 3.68442 22.88 1481.89 1017.241 3.45 3.46 11.812 2.71768 3.69126 22.93 1481.83 1017.282 3.75 3.76 11.786 2.71718 3.69324 22.94 1481.76 1017.296 4.05 4.06 11.778 2.71737 3.69433 22.95 1481.74 1017.304 4.35 4.36 11.776 2.71722 3.69432 22.95 1481.74 1017.306 4.65 4.66 11.774 2.71672 3.69383 22.94 1481.73 1017.305 4.95 4.96 11.774 2.71644 3.69340 22.94 1481.74 1017.304 5.25 5.26 11.775 2.71709 3.69420 22.95 1481.75 1017.309 5.55 5.56 11.774 2.71675 3.69382 22.94 1481.75 1017.309 5.85 5.86 11.770 2.71579 3.69289 22.94 1481.73 1017.305 6.15 6.16 11.768 2.71607 3.69355 22.94 1481.73 1017.310 6.45 6.46 11.766 2.71705 3.69506 22.95 1481.74 1017.320 6.75 6.76 11.761 2.71664 3.69502 22.95 1481.73 1017.322 7.05 7.07 11.756 2.71750 3.69664 22.96 1481.73 1017.332 7.35 7.37 11.753 2.71799 3.69762 22.97 1481.73 1017.339 7.65 7.67 11.753 2.71804 3.69772 22.97 1481.74 1017.341 7.95 7.97 11.751 2.71775 3.69750 22.96 1481.73 1017.341 8.25 8.27 11.753 2.71928 3.69944 22.98 1481.76 1017.352 8.55 8.57 11.752 2.71840 3.69829 22.97 1481.75 1017.348 8.85 8.87 11.751 2.71783 3.69766 22.97 1481.75 1017.346 9.15 9.17 11.749 2.71879 3.69914 22.98 1481.76 1017.355 9.45 9.47 11.747 2.71911 3.69974 22.98 1481.76 1017.360 9.75 9.77 11.742 2.71869 3.69966 22.98 1481.75 1017.361 10.05 10.07 11.742 2.71829 3.69918 22.98 1481.75 1017.360 10.35 10.37 11.741 2.71948 3.70084 22.99 1481.76 1017.370 10.65 10.67 11.740 2.72046 3.70227 23.00 1481.78 1017.379 10.95 10.97 11.739 2.71925 3.70074 22.99 1481.77 1017.372 11.25 11.27 11.739 2.71915 3.70063 22.98 1481.77 1017.373 11.55 11.57 11.743 2.71914 3.70022 22.98 1481.78 1017.372 11.85 11.87 11.747 2.71949 3.70033 22.98 1481.80 1017.373 12.15 12.18 11.749 2.71927 3.69980 22.98 1481.81 1017.372 12.45 12.47 11.749 2.71933 3.69984 22.98 1481.82 1017.373 12.75 12.78 11.748 2.71956 3.70029 22.98 1481.82 1017.377 13.05 13.08 11.745 2.71889 3.69966 22.98 1481.81 1017.375 13.35 13.38 11.736 2.71943 3.70131 22.99 1481.80 1017.386 13.65 13.68 11.731 2.72323 3.70703 23.03 1481.83 1017.418 13.95 13.98 11.717 2.72142 3.70593 23.02 1481.77 1017.415 14.25 14.28 11.705 2.72392 3.71053 23.05 1481.77 1017.442 14.55 14.58 11.705 2.72736 3.71525 23.08 1481.82 1017.468 14.85 14.88 11.710 2.72593 3.71279 23.07 1481.82 1017.456 15.15 15.18 11.715 2.72524 3.71135 23.05 1481.83 1017.449 15.45 15.48 11.723 2.72675 3.71263 23.06 1481.87 1017.457 15.75 15.78 11.723 2.72450 3.70950 23.04 1481.85 1017.441 16.05 16.08 11.714 2.72459 3.71053 23.05 1481.84 1017.449 16.35 16.38 11.701 2.72521 3.71274 23.06 1481.81 1017.463 16.65 16.68 11.690 2.72800 3.71765 23.10 1481.81 1017.492 16.95 16.98 11.689 2.72939 3.71959 23.11 1481.83 1017.503 17.25 17.28 11.688 2.72986 3.72032 23.11 1481.84 1017.509 17.55 17.59 11.682 2.72872 3.71945 23.11 1481.81 1017.506 17.85 17.89 11.674 2.72947 3.72124 23.12 1481.81 1017.518 18.15 18.19 11.669 2.72982 3.72226 23.12 1481.80 1017.525 18.45 18.49 11.661 2.73012 3.72345 23.13 1481.78 1017.533 18.75 18.79 11.657 2.73147 3.72574 23.15 1481.79 1017.547 19.05 19.09 11.656 2.73201 3.72660 23.15 1481.80 1017.553 19.35 19.39 11.657 2.73224 3.72676 23.16 1481.81 1017.555 19.65 19.69 11.661 2.73170 3.72565 23.15 1481.82 1017.550 19.95 19.99 11.663 2.73144 3.72505 23.14 1481.83 1017.548 20.25 20.29 11.665 2.73030 3.72335 23.13 1481.83 1017.540 20.55 20.59 11.664 2.73051 3.72365 23.13 1481.83 1017.543 20.85 20.89 11.663 2.73098 3.72438 23.14 1481.84 1017.548 21.15 21.19 11.661 2.73052 3.72399 23.14 1481.83 1017.548 21.45 21.49 11.660 2.73044 3.72399 23.14 1481.83 1017.549 21.75 21.79 11.661 2.73242 3.72657 23.15 1481.86 1017.564 22.05 22.09 11.657 2.73355 3.72857 23.17 1481.87 1017.576 22.35 22.39 11.648 2.73424 3.73041 23.18 1481.86 1017.588 22.65 22.69 11.644 2.73564 3.73271 23.19 1481.87 1017.602 22.95 23.00 11.648 2.73452 3.73079 23.18 1481.87 1017.593 23.25 23.30 11.650 2.73011 3.72457 23.14 1481.83 1017.561 23.55 23.60 11.650 2.73006 3.72451 23.14 1481.83 1017.562 23.85 23.90 11.649 2.72984 3.72430 23.14 1481.83 1017.563 24.15 24.20 11.649 2.73078 3.72562 23.14 1481.85 1017.571 24.45 24.50 11.646 2.73184 3.72733 23.16 1481.86 1017.582 24.75 24.80 11.643 2.73210 3.72795 23.16 1481.86 1017.586 25.05 25.10 11.640 2.73233 3.72859 23.16 1481.86 1017.591 25.35 25.40 11.638 2.73234 3.72881 23.17 1481.86 1017.594 25.65 25.70 11.637 2.73029 3.72611 23.15 1481.83 1017.581 25.95 26.00 11.640 2.73006 3.72552 23.14 1481.84 1017.579 26.25 26.30 11.641 2.72970 3.72491 23.14 1481.85 1017.577 26.55 26.60 11.642 2.73029 3.72565 23.14 1481.86 1017.582 26.85 26.90 11.641 2.73002 3.72535 23.14 1481.86 1017.582 27.15 27.20 11.642 2.73056 3.72594 23.15 1481.88 1017.586 27.45 27.50 11.644 2.73112 3.72657 23.15 1481.89 1017.591 27.75 27.80 11.644 2.73159 3.72723 23.16 1481.90 1017.596 28.05 28.10 11.641 2.73103 3.72672 23.15 1481.89 1017.594 28.35 28.40 11.640 2.73089 3.72666 23.15 1481.89 1017.596 28.65 28.70 11.640 2.73112 3.72692 23.15 1481.90 1017.598 28.95 29.00 11.640 2.73265 3.72906 23.17 1481.92 1017.611 29.25 29.31 11.639 2.73077 3.72656 23.15 1481.90 1017.599 29.55 29.61 11.639 2.73029 3.72593 23.14 1481.90 1017.597 29.85 29.91 11.639 2.72827 3.72315 23.13 1481.88 1017.584 30.15 30.21 11.640 2.72930 3.72449 23.14 1481.90 1017.592 30.45 30.51 11.639 2.73102 3.72696 23.15 1481.92 1017.606 30.75 30.81 11.634 2.73111 3.72760 23.16 1481.91 1017.612 31.05 31.11 11.629 2.73141 3.72849 23.16 1481.91 1017.618 31.35 31.41 11.626 2.73118 3.72848 23.16 1481.90 1017.620 31.65 31.71 11.626 2.73054 3.72758 23.16 1481.90 1017.616 31.95 32.01 11.626 2.73024 3.72715 23.15 1481.90 1017.615 32.25 32.31 11.623 2.73198 3.72987 23.17 1481.92 1017.631 32.55 32.61 11.621 2.73174 3.72976 23.17 1481.91 1017.632 32.85 32.91 11.619 2.73150 3.72957 23.17 1481.91 1017.633 33.15 33.21 11.621 2.73156 3.72954 23.17 1481.92 1017.634 33.45 33.51 11.620 2.73064 3.72830 23.16 1481.91 1017.628 33.75 33.81 11.621 2.73061 3.72817 23.16 1481.92 1017.629 34.05 34.11 11.621 2.73072 3.72838 23.16 1481.93 1017.631 34.35 34.41 11.619 2.73062 3.72840 23.16 1481.93 1017.633 34.65 34.72 11.618 2.73082 3.72881 23.16 1481.93 1017.637 34.95 35.02 11.616 2.73124 3.72960 23.17 1481.93 1017.642 35.25 35.32 11.613 2.73096 3.72945 23.16 1481.93 1017.643 35.55 35.62 11.613 2.73131 3.72995 23.17 1481.94 1017.647 35.85 35.92 11.614 2.73102 3.72944 23.16 1481.94 1017.645 36.15 36.22 11.611 2.73139 3.73028 23.17 1481.94 1017.652 36.45 36.52 11.608 2.73162 3.73090 23.17 1481.94 1017.656 36.75 36.82 11.605 2.73213 3.73192 23.18 1481.94 1017.663 37.05 37.12 11.602 2.73204 3.73207 23.18 1481.94 1017.666 37.35 37.42 11.600 2.73210 3.73236 23.18 1481.94 1017.669 37.65 37.72 11.599 2.73184 3.73208 23.18 1481.94 1017.669 37.95 38.02 11.600 2.73114 3.73112 23.18 1481.93 1017.665 38.25 38.32 11.605 2.73225 3.73210 23.18 1481.97 1017.671 38.55 38.62 11.608 2.73492 3.73545 23.20 1482.01 1017.690 38.85 38.92 11.603 2.73664 3.73830 23.22 1482.02 1017.707 39.15 39.22 11.588 2.73609 3.73908 23.23 1481.97 1017.714 39.45 39.52 11.582 2.73545 3.73883 23.23 1481.95 1017.714 39.75 39.82 11.581 2.73355 3.73633 23.21 1481.94 1017.702 40.05 40.12 11.583 2.73195 3.73388 23.19 1481.93 1017.690 40.35 40.42 11.598 2.73118 3.73135 23.18 1481.97 1017.677 40.65 40.73 11.606 2.73454 3.73513 23.20 1482.03 1017.697 40.95 41.03 11.602 2.73555 3.73688 23.21 1482.04 1017.708 41.25 41.33 11.590 2.73546 3.73800 23.22 1482.01 1017.717 41.55 41.63 11.585 2.73535 3.73834 23.22 1482.00 1017.720 41.85 41.93 11.583 2.73566 3.73895 23.23 1482.00 1017.725 42.15 42.23 11.581 2.73571 3.73928 23.23 1482.00 1017.728 42.45 42.53 11.581 2.73746 3.74166 23.24 1482.02 1017.742 42.75 42.83 11.583 2.73680 3.74054 23.24 1482.03 1017.737 43.15 43.23 11.587 2.73739 3.74092 23.24 1482.05 1017.741