*2019/08/26 15:30:37.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/06/22 20:47:41.000 END TIME : UTC 2017/06/22 20:47:59.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 93 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.64 2 Depth metres 0.15 27.69 3 Temperature 'deg C (ITS90)' 11.348 12.067 4 Conductivity S/m 2.65938 2.81928 5 Conductance:Specific S/m 3.58897 3.87703 6 Salinity PSS-78 22.25 24.16 7 Speed:Sound m/s 1481.6 1482.4 8 Density kg/m^3 1016.705 1018.399 $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 : 551 LATITUDE : 49 17.79692 N ! (deg min) LONGITUDE : 123 0.26725 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 01:01:43 93 93 HDREDIT2 3.1.1 2017/12/13 11:33:22 ? ? CALIB 12.0 2019/08/26 15:30:37 93 93 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/09 01:01:42 -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_204741 % Cast time (UTC),2017-06-22 20:47:41 % Cast time (local),2017-06-22 20:47:41 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.2966153 % Start longitude,-123.0044541 % Start altitude,-24.590000152587891 % Start GPS horizontal error(Meter),1.8999999761581421 % Start GPS vertical error(Meter),3.1700000762939453 % Start GPS number of satellites,7 % End latitude,49.2971771 % End longitude,-123.0042244 % End altitude,-23.069999694824219 % End GPS horizontal error(Meter),2.369999885559082 % End GPS vertical error(Meter),4.0999999046325684 % End GPS number of satellites,8 % Cast duration (Seconds),85 % 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 12.067 2.66444 3.59412 22.28 1481.92 1016.726 0.45 0.45 12.065 2.66326 3.59268 22.27 1481.90 1016.720 0.75 0.75 12.061 2.66187 3.59120 22.26 1481.88 1016.714 1.05 1.05 12.049 2.65938 3.58897 22.25 1481.83 1016.705 1.35 1.35 12.033 2.66243 3.59470 22.29 1481.82 1016.739 1.65 1.65 12.022 2.66621 3.60080 22.33 1481.83 1016.773 1.95 1.96 12.039 2.66942 3.60355 22.35 1481.92 1016.787 2.25 2.26 12.040 2.66996 3.60416 22.35 1481.93 1016.791 2.55 2.56 12.022 2.66655 3.60133 22.33 1481.85 1016.780 2.85 2.86 12.008 2.67730 3.61722 22.44 1481.93 1016.867 3.15 3.16 11.997 2.68012 3.62205 22.47 1481.94 1016.895 3.45 3.46 11.979 2.68234 3.62682 22.50 1481.92 1016.923 3.75 3.76 11.969 2.68771 3.63504 22.55 1481.95 1016.969 4.05 4.06 11.967 2.68747 3.63496 22.55 1481.95 1016.970 4.35 4.36 11.968 2.68733 3.63466 22.55 1481.95 1016.970 4.65 4.66 11.972 2.68739 3.63431 22.55 1481.97 1016.968 4.95 4.96 11.971 2.68247 3.62778 22.51 1481.92 1016.935 5.25 5.26 11.964 2.67959 3.62459 22.48 1481.87 1016.921 5.55 5.56 11.964 2.68625 3.63358 22.55 1481.95 1016.969 5.85 5.86 11.976 2.68905 3.63621 22.56 1482.02 1016.983 6.15 6.17 11.980 2.68773 3.63400 22.55 1482.02 1016.972 6.45 6.47 11.973 2.68007 3.62437 22.48 1481.92 1016.924 6.75 6.77 11.960 2.68138 3.62742 22.50 1481.90 1016.943 7.05 7.07 11.948 2.68213 3.62958 22.52 1481.88 1016.957 7.35 7.37 11.922 2.68830 3.64053 22.59 1481.88 1017.019 7.65 7.67 11.876 2.68305 3.63789 22.57 1481.70 1017.011 7.95 7.97 11.843 2.69432 3.65653 22.69 1481.73 1017.115 8.25 8.27 11.831 2.71482 3.68546 22.89 1481.93 1017.270 8.55 8.57 11.826 2.75834 3.74507 23.30 1482.40 1017.587 8.85 8.87 11.716 2.75788 3.75566 23.36 1482.09 1017.656 9.15 9.17 11.608 2.74073 3.74336 23.27 1481.60 1017.604 9.45 9.47 11.596 2.77170 3.78688 23.57 1481.92 1017.837 9.75 9.77 11.523 2.78850 3.81750 23.77 1481.90 1018.009 10.05 10.07 11.466 2.78747 3.82203 23.80 1481.74 1018.040 10.35 10.37 11.453 2.80031 3.84095 23.92 1481.85 1018.143 10.65 10.67 11.429 2.79645 3.83823 23.90 1481.75 1018.132 10.95 10.97 11.413 2.79937 3.84387 23.94 1481.74 1018.165 11.25 11.27 11.409 2.80197 3.84787 23.97 1481.76 1018.188 11.55 11.57 11.408 2.79866 3.84343 23.94 1481.73 1018.166 11.85 11.88 11.407 2.80043 3.84602 23.95 1481.75 1018.181 12.15 12.18 11.403 2.80477 3.85237 24.00 1481.79 1018.216 12.45 12.48 11.394 2.80427 3.85262 24.00 1481.77 1018.220 12.75 12.78 11.388 2.80415 3.85314 24.00 1481.75 1018.225 13.05 13.08 11.390 2.80561 3.85495 24.01 1481.78 1018.235 13.35 13.38 11.394 2.80727 3.85676 24.03 1481.81 1018.246 13.65 13.68 11.395 2.80837 3.85823 24.04 1481.83 1018.255 13.95 13.98 11.392 2.80481 3.85366 24.00 1481.79 1018.232 14.25 14.28 11.390 2.80440 3.85327 24.00 1481.78 1018.232 14.55 14.58 11.399 2.80584 3.85424 24.01 1481.83 1018.237 14.85 14.88 11.408 2.80404 3.85083 23.99 1481.84 1018.219 15.15 15.18 11.406 2.79973 3.84518 23.95 1481.79 1018.191 15.45 15.48 11.405 2.79783 3.84267 23.93 1481.77 1018.179 15.75 15.78 11.401 2.79892 3.84453 23.94 1481.78 1018.191 16.05 16.08 11.392 2.79620 3.84181 23.92 1481.72 1018.178 16.35 16.38 11.395 2.79810 3.84412 23.94 1481.76 1018.192 16.65 16.68 11.404 2.80020 3.84602 23.95 1481.81 1018.202 16.95 16.98 11.405 2.80045 3.84627 23.95 1481.82 1018.205 17.25 17.28 11.413 2.80037 3.84527 23.95 1481.85 1018.200 17.55 17.58 11.431 2.80104 3.84430 23.94 1481.91 1018.194 17.85 17.88 11.441 2.79930 3.84088 23.92 1481.93 1018.176 18.15 18.18 11.443 2.79561 3.83558 23.88 1481.90 1018.149 18.45 18.48 11.439 2.79584 3.83629 23.89 1481.89 1018.155 18.75 18.78 11.450 2.79301 3.83126 23.86 1481.90 1018.128 19.05 19.08 11.441 2.78245 3.81770 23.76 1481.76 1018.058 19.35 19.38 11.414 2.78321 3.82167 23.79 1481.69 1018.083 19.65 19.68 11.398 2.79832 3.84410 23.94 1481.82 1018.205 19.95 19.98 11.391 2.80287 3.85107 23.99 1481.86 1018.244 20.25 20.29 11.398 2.80312 3.85070 23.98 1481.89 1018.243 20.55 20.59 11.357 2.81383 3.86970 24.11 1481.90 1018.349 20.85 20.89 11.359 2.81682 3.87361 24.14 1481.94 1018.371 21.15 21.19 11.357 2.81838 3.87598 24.15 1481.96 1018.385 21.45 21.49 11.359 2.81928 3.87703 24.16 1481.98 1018.392 21.75 21.79 11.365 2.81636 3.87236 24.13 1481.97 1018.368 22.05 22.09 11.360 2.80711 3.86013 24.05 1481.86 1018.305 22.35 22.39 11.357 2.81246 3.86788 24.10 1481.91 1018.348 22.65 22.69 11.352 2.81383 3.87024 24.11 1481.92 1018.362 22.95 22.99 11.353 2.81650 3.87385 24.14 1481.95 1018.382 23.25 23.29 11.360 2.81543 3.87166 24.12 1481.97 1018.371 23.55 23.59 11.357 2.81035 3.86490 24.08 1481.91 1018.337 23.85 23.89 11.348 2.81051 3.86609 24.08 1481.89 1018.345 24.15 24.19 11.350 2.81784 3.87597 24.15 1481.98 1018.399 24.45 24.49 11.361 2.81752 3.87440 24.14 1482.01 1018.391 24.75 24.79 11.363 2.81421 3.86963 24.11 1481.99 1018.367 25.05 25.09 11.353 2.81503 3.87180 24.12 1481.97 1018.380 25.35 25.39 11.350 2.81381 3.87042 24.11 1481.96 1018.375 25.65 25.69 11.349 2.79749 3.84805 23.96 1481.77 1018.257 25.95 25.99 11.384 2.77399 3.81210 23.72 1481.61 1018.064 26.25 26.29 11.458 2.77028 3.79931 23.63 1481.78 1017.990 26.55 26.59 11.495 2.76916 3.79384 23.60 1481.88 1017.959 26.85 26.89 11.516 2.76930 3.79187 23.59 1481.95 1017.947 27.15 27.19 11.534 2.76934 3.79013 23.58 1482.00 1017.938 27.45 27.49 11.546 2.77162 3.79197 23.59 1482.07 1017.947 27.64 27.69 11.554 2.77254 3.79234 23.59 1482.10 1017.949