Turnipseed_TraceGases Instructions

Investigator:  Andrew Turnipseed, NCAR/ACD
turnip@ucar.edu

Filenames (comma delimited):  
Turnipseed_TraceGases.csv 

Analyzers:
Ozone:		2B Technologies Model 205 UV-abs. spectrometer
SO2:		Thermo Environmental Model 43C-TLE
CO2/H2O:	Licor Model Li-6262 infrared gas analyzer

Measurements are made from 6 inlets at different heights.
Measurements are made from each inlet for 5 min., cycling through all 6 inlets over a 30 min. period.
These are denoted in the column labeled "Level"
Level 1 : z = 1.5 m
Level 2: z = 5.0 m
Level 3: z = 8.5 m
Level 4: z = 12.0 m
Level 5: z= 17.7 m
Level 6: z = 25.1 m

Data Interval:  1 min. average
Initial Start time of file:  July 5, 2011, 10:18  (MST)
Last data point:  August 30, 2011, 15:36 (MST)
Missing data = NA
Data has not been thoroughly checked or flagged for problems.
Logged on:  Labview VI

Columns (for all 4 files):

Date/time:	MM/DD/YY, HH:mm:ss, End of the 1 min. period (MST)
Day of Year:	Decimal day, Beginning of 5 min. period (MST)
SO2:		sulfur dioxide, units = ppbv
O3:		ozone, units = ppbv
CO2:		Carbon dioxide, units = ppmv
H2O:		water vapor, units = mmol/mol
Zero:		Flag denoting sampling status:  0 = sampling, 1 or 2 = instrument zero 
Span:		Flag denoting sampling status:  0 = sampling, 1 = SO2 span meas., 2 = CO2 span meas.
Level:		Flag denoting which sampling inlet is active (see above for inlet heights).