*2019/08/26 15:30:07.19 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2016/03/22 18:31:42.000 END TIME : UTC 2016/03/22 18:32:02.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 105 DATA DESCRIPTION : CTD NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.34 2 Depth metres 0.15 31.95 3 Temperature 'deg C (ITS90)' 6.164 6.269 4 Conductivity S/m 0.706E-02 0.773E-02 5 Conductance:Specific S/m 0.113E-01 0.1237E-01 6 Salinity PSS-78 0.5E-01 0.6E-01 7 Speed:Sound m/s 1431.69 1432.34 8 Density kg/m^3 999.977 1000.133 $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 : 2016-98 AGENCY : Canadian Hydrographic Service COUNTRY : Canada PROJECT : CHS CTD Data Acquisition SCIENTIST : Dangerfield N. *LOCATION EVENT NUMBER : 202 LATITUDE : 49 9.43705 N ! (deg min) LONGITUDE : 122 56.77591 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 19:25:32 105 105 HDREDIT2 3.1.1 2017/12/13 11:31:11 ? ? CALIB 12.0 2019/08/26 15:30:07 105 105 $END $REMARKS -READ_CHS_CTDS processing: 2017/12/08 19:25:31 -HEADER EDITS: 2017/12/13 11:31:11 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 15:30:07 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_20160322_183142 % Cast time (UTC),2016-03-22 18:31:42 % Cast time (local),2016-03-22 18:31:42 % Sample type,Cast % Cast data,Processed % Location source,GPS % Default latitude,32 % Default altitude,0 % Start latitude,49.1572842 % Start longitude,-122.9462651 % Start altitude,-12.729999542236328 % Start GPS horizontal error(Meter),2.5799999237060547 % Start GPS vertical error(Meter),3.0999999046325684 % Start GPS number of satellites,5 % End latitude,49.1568349 % End longitude,-122.9466707 % End altitude,-12.909999847412109 % End GPS horizontal error(Meter),2.8399999141693115 % End GPS vertical error(Meter),4.5799999237060547 % End GPS number of satellites,6 % Cast duration (Seconds),87.8 % 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 6.235 0.00706 0.01130 0.05 1431.69 999.977 0.45 0.46 6.239 0.00714 0.01142 0.05 1431.71 999.979 0.75 0.77 6.248 0.00731 0.01170 0.05 1431.76 999.981 1.05 1.07 6.245 0.00714 0.01143 0.05 1431.75 999.981 1.35 1.38 6.245 0.00718 0.01149 0.05 1431.75 999.983 1.65 1.68 6.255 0.00726 0.01162 0.05 1431.81 999.985 1.95 1.99 6.263 0.00719 0.01150 0.05 1431.84 999.985 2.25 2.29 6.267 0.00719 0.01150 0.05 1431.87 999.987 2.55 2.60 6.269 0.00722 0.01155 0.05 1431.88 999.988 2.85 2.90 6.260 0.00727 0.01163 0.05 1431.84 999.990 3.15 3.21 6.252 0.00729 0.01166 0.05 1431.82 999.992 3.45 3.52 6.250 0.00728 0.01164 0.05 1431.81 999.994 3.75 3.82 6.242 0.00727 0.01163 0.05 1431.78 999.995 4.05 4.13 6.239 0.00732 0.01172 0.05 1431.77 999.997 4.35 4.43 6.239 0.00735 0.01176 0.05 1431.78 999.999 4.65 4.74 6.233 0.00734 0.01175 0.05 1431.76 1000.001 4.95 5.05 6.231 0.00729 0.01168 0.05 1431.75 1000.002 5.25 5.35 6.227 0.00731 0.01171 0.05 1431.74 1000.004 5.55 5.66 6.225 0.00737 0.01180 0.05 1431.73 1000.005 5.85 5.96 6.222 0.00741 0.01186 0.05 1431.73 1000.007 6.15 6.27 6.219 0.00745 0.01193 0.05 1431.72 1000.009 6.45 6.58 6.216 0.00758 0.01214 0.06 1431.71 1000.011 6.75 6.88 6.215 0.00758 0.01214 0.06 1431.71 1000.013 7.05 7.19 6.214 0.00758 0.01215 0.06 1431.71 1000.014 7.35 7.49 6.214 0.00758 0.01215 0.06 1431.72 1000.016 7.65 7.80 6.213 0.00758 0.01214 0.06 1431.72 1000.017 7.95 8.10 6.213 0.00756 0.01212 0.06 1431.72 1000.019 8.25 8.41 6.214 0.00754 0.01208 0.06 1431.73 1000.020 8.55 8.72 6.212 0.00752 0.01205 0.05 1431.73 1000.021 8.85 9.02 6.213 0.00753 0.01206 0.06 1431.74 1000.023 9.15 9.33 6.215 0.00751 0.01203 0.05 1431.75 1000.024 9.45 9.63 6.211 0.00751 0.01203 0.05 1431.74 1000.026 9.75 9.94 6.206 0.00752 0.01205 0.05 1431.72 1000.027 10.05 10.24 6.202 0.00751 0.01204 0.05 1431.71 1000.029 10.35 10.55 6.202 0.00751 0.01204 0.05 1431.71 1000.030 10.65 10.86 6.204 0.00751 0.01204 0.05 1431.73 1000.032 10.95 11.16 6.204 0.00751 0.01204 0.05 1431.73 1000.033 11.25 11.47 6.205 0.00752 0.01205 0.05 1431.74 1000.035 11.55 11.77 6.204 0.00752 0.01205 0.05 1431.74 1000.036 11.85 12.08 6.203 0.00753 0.01206 0.06 1431.74 1000.038 12.15 12.38 6.202 0.00753 0.01207 0.06 1431.74 1000.039 12.45 12.69 6.202 0.00753 0.01207 0.06 1431.74 1000.041 12.75 13.00 6.200 0.00753 0.01206 0.06 1431.74 1000.042 13.05 13.30 6.202 0.00752 0.01205 0.05 1431.76 1000.044 13.35 13.61 6.200 0.00750 0.01203 0.05 1431.75 1000.045 13.65 13.91 6.204 0.00747 0.01197 0.05 1431.77 1000.046 13.95 14.22 6.197 0.00747 0.01197 0.05 1431.75 1000.048 14.25 14.53 6.194 0.00747 0.01197 0.05 1431.74 1000.050 14.55 14.83 6.194 0.00746 0.01196 0.05 1431.74 1000.051 14.85 15.14 6.192 0.00742 0.01189 0.05 1431.74 1000.052 15.15 15.44 6.190 0.00740 0.01187 0.05 1431.74 1000.054 15.45 15.75 6.191 0.00739 0.01185 0.05 1431.74 1000.055 15.75 16.05 6.190 0.00742 0.01190 0.05 1431.74 1000.057 16.05 16.36 6.191 0.00740 0.01186 0.05 1431.76 1000.058 16.35 16.67 6.190 0.00739 0.01184 0.05 1431.75 1000.059 16.65 16.97 6.186 0.00735 0.01178 0.05 1431.74 1000.061 16.95 17.28 6.188 0.00731 0.01171 0.05 1431.76 1000.062 17.25 17.58 6.186 0.00731 0.01172 0.05 1431.75 1000.064 17.55 17.89 6.186 0.00729 0.01169 0.05 1431.75 1000.065 17.85 18.20 6.188 0.00729 0.01169 0.05 1431.77 1000.066 18.15 18.50 6.187 0.00730 0.01170 0.05 1431.77 1000.068 18.45 18.81 6.186 0.00729 0.01169 0.05 1431.77 1000.069 18.75 19.11 6.185 0.00730 0.01170 0.05 1431.77 1000.071 19.05 19.42 6.184 0.00730 0.01170 0.05 1431.77 1000.072 19.35 19.72 6.185 0.00730 0.01171 0.05 1431.78 1000.074 19.65 20.03 6.183 0.00733 0.01175 0.05 1431.78 1000.075 19.95 20.34 6.185 0.00733 0.01175 0.05 1431.79 1000.077 20.25 20.64 6.186 0.00732 0.01174 0.05 1431.80 1000.078 20.55 20.95 6.183 0.00733 0.01176 0.05 1431.79 1000.080 20.85 21.25 6.186 0.00733 0.01175 0.05 1431.80 1000.081 21.15 21.56 6.185 0.00734 0.01178 0.05 1431.81 1000.083 21.45 21.86 6.187 0.00736 0.01179 0.05 1431.82 1000.084 21.75 22.17 6.186 0.00734 0.01178 0.05 1431.82 1000.086 22.05 22.48 6.185 0.00737 0.01182 0.05 1431.82 1000.087 22.35 22.78 6.185 0.00737 0.01182 0.05 1431.83 1000.089 22.65 23.09 6.183 0.00738 0.01183 0.05 1431.82 1000.090 22.95 23.39 6.185 0.00741 0.01187 0.05 1431.84 1000.092 23.25 23.70 6.180 0.00746 0.01197 0.05 1431.82 1000.094 23.55 24.01 6.181 0.00754 0.01209 0.06 1431.83 1000.096 23.85 24.31 6.187 0.00753 0.01207 0.06 1431.86 1000.097 24.15 24.62 6.185 0.00752 0.01205 0.05 1431.86 1000.098 24.45 24.92 6.186 0.00753 0.01207 0.06 1431.86 1000.100 24.75 25.23 6.186 0.00753 0.01207 0.06 1431.87 1000.101 25.05 25.54 6.182 0.00753 0.01207 0.06 1431.86 1000.103 25.35 25.84 6.184 0.00752 0.01205 0.05 1431.87 1000.104 25.65 26.15 6.182 0.00753 0.01208 0.06 1431.87 1000.106 25.95 26.45 6.183 0.00755 0.01211 0.06 1431.87 1000.108 26.25 26.76 6.184 0.00756 0.01213 0.06 1431.89 1000.109 26.55 27.06 6.182 0.00758 0.01215 0.06 1431.88 1000.111 26.85 27.37 6.186 0.00760 0.01219 0.06 1431.90 1000.112 27.15 27.68 6.183 0.00764 0.01225 0.06 1431.89 1000.114 27.45 27.98 6.185 0.00764 0.01225 0.06 1431.91 1000.115 27.75 28.29 6.185 0.00762 0.01222 0.06 1431.91 1000.117 28.05 28.59 6.180 0.00762 0.01222 0.06 1431.90 1000.118 28.35 28.90 6.169 0.00763 0.01224 0.06 1431.86 1000.120 28.65 29.20 6.166 0.00764 0.01225 0.06 1431.85 1000.122 28.95 29.51 6.165 0.00764 0.01225 0.06 1431.84 1000.123 29.25 29.82 6.164 0.00763 0.01224 0.06 1431.85 1000.125 29.55 30.12 6.165 0.00763 0.01224 0.06 1431.86 1000.126 29.85 30.43 6.172 0.00764 0.01226 0.06 1431.89 1000.127 30.15 30.73 6.183 0.00762 0.01222 0.06 1431.94 1000.128 30.45 31.04 6.181 0.00761 0.01221 0.06 1431.94 1000.130 30.75 31.34 6.176 0.00767 0.01230 0.06 1431.92 1000.132 31.05 31.65 6.190 0.00771 0.01237 0.06 1431.99 1000.133 31.34 31.95 6.269 0.00773 0.01235 0.06 1432.34 1000.132