*2019/08/26 15:30:31.35 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/03/02 02:36:21.000 END TIME : UTC 2017/03/02 02:36:38.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 86 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.54 2 Depth metres 0.15 25.5 3 Temperature 'deg C (ITS90)' 7.434 7.714 4 Conductivity S/m 2.75701 2.91069 5 Conductance:Specific S/m 4.25018 4.44863 6 Salinity PSS-78 26.31 27.69 7 Speed:Sound m/s 1469.52 1472.75 8 Density kg/m^3 1020.53 1021.699 $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 : 298 LATITUDE : 49 18.52351 N ! (deg min) LONGITUDE : 123 6.28273 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 20:50:42 86 86 HDREDIT2 3.1.1 2017/12/13 11:33:17 ? ? CALIB 12.0 2019/08/26 15:30:31 86 86 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 20:50:42 -HEADER EDITS: 2017/12/13 11:33:17 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 15:30:31 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_20170302_023621 % Cast time (UTC),2017-03-02 02:36:21 % Cast time (local),2017-03-02 02:36:21 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.3087252 % Start longitude,-123.1047121 % Start altitude,-17.989999771118164 % Start GPS horizontal error(Meter),5.7100000381469727 % Start GPS vertical error(Meter),7.070000171661377 % Start GPS number of satellites,6 % End latitude,49.3087065 % End longitude,-123.1047841 % End altitude,-15.539999961853027 % End GPS horizontal error(Meter),10.869999885559082 % End GPS vertical error(Meter),11.899999618530273 % End GPS number of satellites,5 % Cast duration (Seconds),86 % 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 7.434 2.75701 4.25018 26.31 1469.52 1020.530 0.45 0.45 7.465 2.77312 4.27095 26.45 1469.83 1020.642 0.75 0.75 7.474 2.78267 4.28448 26.55 1469.98 1020.715 1.05 1.05 7.471 2.78682 4.29126 26.59 1470.03 1020.753 1.35 1.35 7.462 2.78759 4.29355 26.61 1470.02 1020.766 1.65 1.65 7.459 2.78652 4.29241 26.60 1470.00 1020.762 1.95 1.95 7.460 2.78709 4.29315 26.60 1470.02 1020.767 2.25 2.25 7.460 2.78714 4.29319 26.61 1470.02 1020.768 2.55 2.55 7.461 2.78814 4.29457 26.61 1470.05 1020.777 2.85 2.85 7.462 2.78811 4.29440 26.61 1470.05 1020.777 3.15 3.15 7.463 2.78809 4.29428 26.61 1470.06 1020.778 3.45 3.44 7.464 2.78882 4.29530 26.62 1470.08 1020.785 3.75 3.75 7.466 2.78946 4.29603 26.62 1470.10 1020.790 4.05 4.04 7.466 2.78941 4.29584 26.62 1470.10 1020.790 4.35 4.34 7.468 2.78978 4.29625 26.63 1470.11 1020.794 4.65 4.64 7.470 2.79007 4.29634 26.63 1470.13 1020.796 4.95 4.94 7.474 2.79039 4.29639 26.63 1470.15 1020.797 5.25 5.24 7.476 2.79064 4.29642 26.63 1470.17 1020.798 5.55 5.54 7.480 2.79087 4.29629 26.63 1470.18 1020.799 5.85 5.84 7.485 2.79181 4.29704 26.63 1470.22 1020.804 6.15 6.14 7.490 2.79392 4.29970 26.65 1470.26 1020.820 6.45 6.44 7.491 2.79539 4.30175 26.67 1470.29 1020.832 6.75 6.74 7.493 2.79673 4.30362 26.68 1470.32 1020.843 7.05 7.04 7.495 2.79695 4.30362 26.68 1470.33 1020.844 7.35 7.34 7.499 2.79915 4.30658 26.70 1470.38 1020.862 7.65 7.64 7.506 2.80075 4.30809 26.71 1470.42 1020.871 7.95 7.94 7.515 2.80201 4.30876 26.72 1470.47 1020.876 8.25 8.24 7.526 2.80332 4.30940 26.72 1470.53 1020.880 8.55 8.54 7.531 2.80637 4.31336 26.75 1470.59 1020.902 8.85 8.84 7.534 2.80732 4.31450 26.76 1470.61 1020.910 9.15 9.14 7.537 2.80911 4.31677 26.77 1470.65 1020.923 9.45 9.44 7.540 2.81076 4.31888 26.79 1470.68 1020.936 9.75 9.74 7.543 2.81248 4.32115 26.80 1470.72 1020.949 10.05 10.04 7.548 2.81322 4.32163 26.81 1470.75 1020.953 10.35 10.34 7.552 2.81312 4.32097 26.80 1470.76 1020.951 10.65 10.63 7.554 2.81400 4.32200 26.81 1470.79 1020.957 10.95 10.93 7.558 2.81457 4.32233 26.81 1470.81 1020.960 11.25 11.23 7.564 2.81513 4.32241 26.82 1470.84 1020.962 11.55 11.53 7.572 2.81633 4.32326 26.82 1470.88 1020.968 11.85 11.83 7.581 2.82036 4.32826 26.86 1470.97 1020.996 12.15 12.13 7.583 2.82567 4.33606 26.91 1471.05 1021.039 12.45 12.43 7.585 2.82826 4.33985 26.94 1471.09 1021.060 12.75 12.73 7.588 2.82913 4.34078 26.94 1471.12 1021.067 13.05 13.03 7.592 2.83541 4.34991 27.01 1471.21 1021.117 13.35 13.33 7.600 2.83908 4.35440 27.04 1471.29 1021.142 13.65 13.63 7.608 2.84148 4.35705 27.06 1471.35 1021.157 13.95 13.93 7.611 2.84356 4.35983 27.08 1471.39 1021.173 14.25 14.23 7.613 2.84474 4.36141 27.09 1471.41 1021.183 14.55 14.53 7.612 2.84478 4.36151 27.09 1471.42 1021.185 14.85 14.83 7.612 2.84568 4.36298 27.10 1471.43 1021.194 15.15 15.13 7.610 2.84620 4.36405 27.10 1471.44 1021.201 15.45 15.43 7.610 2.84760 4.36618 27.12 1471.46 1021.214 15.75 15.73 7.609 2.84776 4.36650 27.12 1471.47 1021.217 16.05 16.03 7.610 2.84821 4.36702 27.12 1471.48 1021.221 16.35 16.32 7.610 2.84909 4.36839 27.13 1471.50 1021.230 16.65 16.62 7.612 2.84707 4.36506 27.11 1471.48 1021.213 16.95 16.92 7.612 2.85045 4.37021 27.15 1471.53 1021.242 17.25 17.22 7.612 2.85177 4.37228 27.16 1471.55 1021.254 17.55 17.52 7.612 2.85197 4.37259 27.16 1471.56 1021.257 17.85 17.82 7.614 2.85218 4.37259 27.16 1471.57 1021.259 18.15 18.12 7.616 2.85260 4.37306 27.17 1471.59 1021.263 18.45 18.42 7.616 2.85261 4.37307 27.16 1471.59 1021.264 18.75 18.72 7.616 2.85326 4.37402 27.17 1471.61 1021.270 19.05 19.02 7.616 2.85311 4.37380 27.17 1471.61 1021.270 19.35 19.32 7.617 2.85285 4.37332 27.17 1471.61 1021.269 19.65 19.62 7.616 2.85248 4.37282 27.16 1471.61 1021.268 19.95 19.92 7.615 2.85129 4.37118 27.15 1471.60 1021.260 20.25 20.22 7.614 2.84697 4.36467 27.11 1471.54 1021.227 20.55 20.52 7.613 2.85227 4.37290 27.16 1471.61 1021.272 20.85 20.82 7.614 2.85262 4.37333 27.17 1471.62 1021.276 21.15 21.12 7.614 2.85297 4.37383 27.17 1471.63 1021.280 21.45 21.42 7.614 2.85213 4.37253 27.16 1471.63 1021.274 21.75 21.71 7.616 2.85414 4.37537 27.18 1471.66 1021.290 22.05 22.02 7.617 2.85487 4.37638 27.19 1471.68 1021.297 22.35 22.31 7.618 2.85593 4.37785 27.20 1471.70 1021.306 22.65 22.61 7.618 2.85569 4.37742 27.19 1471.71 1021.305 22.95 22.91 7.617 2.85631 4.37857 27.20 1471.72 1021.313 23.25 23.21 7.617 2.85658 4.37897 27.20 1471.72 1021.316 23.55 23.51 7.616 2.85744 4.38046 27.21 1471.74 1021.326 23.85 23.81 7.611 2.85750 4.38119 27.22 1471.73 1021.331 24.15 24.11 7.613 2.86446 4.39154 27.29 1471.83 1021.388 24.45 24.41 7.631 2.87783 4.40966 27.42 1472.06 1021.486 24.75 24.71 7.647 2.88589 4.41979 27.49 1472.22 1021.541 25.05 25.01 7.675 2.89958 4.43701 27.61 1472.48 1021.635 25.35 25.31 7.706 2.90924 4.44757 27.69 1472.70 1021.692 25.54 25.50 7.714 2.91069 4.44863 27.69 1472.75 1021.699