This is the metadata for: MUMBA_O3_2012-12-21_2013-02-15 (doi:0.1594/PANGAEA.871996)


Measurement: Ozone 
Instrument: Thermo TEI49i UV absorption instrument
Owner: UOW
Campaign: MUMBA
Location: Main measurement site - Nissan Hut Kids Campus / Campus East, Wollongong (-34.3972, 150.8996)
Dates of operation: 21-Dec-2012 to 15-Feb-2013
Original measurement time resolution: 1 minute
Averaging time: 1 hour
Units: ppb

Inlet/Installation detail (inc. flow rate if relevant): Ambient air sampled with 3/8" PTFE bypass, 1/4" PTFE inlet, not heated, inline Teflon filter, max. residence time 3 seconds. Inlet shared with NOx and SIFT system which took their sample upstream and downstream of O3 instrument, respectively  
Data/sample collection detail: 
Data/sample analysis detail (inc. references if needed): 
Calibration: May 2013
Estimated inlet loss: 1%
Precision: +- 1 ppb 
Accuracy: +- 2.1%  - mainly determined by the uncertainty of the O3 absorption cross section (Viallon et al 2012)

Issues: none reported 
Corrections (inc. blank corrections - this may have been covered in analysis detail):
Uncertainty: timestamp - less then +- 20 s, drift - uncertainty due to the difference in calibrations prior and post to MUMBA campaign (see file)
Detection Limit: 0.5 ppb (2-sigma, 60 seconds measurement)
Missing or invalid data reported as empty fields


File headers:
date 		yyyy-mm-ddTHH:MM:SSz
median_O3 (ppb)		median of hourly O3 in volume mixing ratio		
mean_O3 (ppb)	 	mean of hourly O3 in volume mixing ratio		
std_O3 (ppb) 		standard deviation of hourly mean O3 in volume mixing ratio		
uncertainty_drift_median_O3 (ppb)	uncertainty on median caused by difference in prior and post calibration 	
uncertainty_drift_mean_O3 (ppb)	uncertainty on mean caused by difference in prior and post calibration 	
uncertainty_drift_median_O3 (ppb)	uncertainty on standard deviation caused by difference in prior and post calibration 	
no_points 		number of points used to calculate median and mean O3 values 

data version: 14-Aug-2013 

Contact(s):
Dagmar Kubistin dagmar.kubistin@dwd.de

References  
Viallon, J., P. Moussay, F. Idrees, R. Wielgosz and C. Zellweger (2012). "Final report, ongoing key comparison BIPM.QM-K1: Ozone at ambient level, comparison with EMPA (June 2012)." Metrologia 49(1A): 08011, doi:10.1088/0026-1394/49/1A/08011