No.8

Introduction
Data Policy
Data
Documentation
Contact Information



Waldhof

-O3-

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Station Contact Person(s) Observation Data and Quick Plot

Observation
Category : Air sampling observation
Situation : ongoing
Time zone : Local time 1


Sampling
Sampling height :
Description : continuous
Sampling and analysis frequency : Continuous
Sampling environment :
Description for sampling analysis : Air inlet


Instrument and Analysis
Measurement method : Light absorption analysis (UV)
Current status and history of instrument : UV Absorption
Description of instrument : Monitor Labs
ML 9812


Calibration
Current scale employed in the measurement :
Measurement calibration : Transfer standard
Scale and calibration(treasability) : referring to 20 °C, 1013 hPa


Data Processing
Measurement unit : ppb
Data processing : All values are quality controlled
Processing for averaging : Processing for Hourly Data:
Only technically biased values are removed (caused by calibration or malfunctioning of equipment).
Processing for Daily Data:
Take the arithmetic mean of selected halfhourly data if at least 2/3 of the halfhourly values of one day are available.
Processing for Monthly Data:
Take the arithmetic mean of selected daily data if at least 2/3 of the daily values of one month are available.
Data flag : hourly:
0 = valid value,
3 = invalid data,
6 = calibration
Data remarks :


Other Information
Scientific aim :
Reference : "Qualitatssicherungs-Handbuch des UBA-Messnetzes", UBA Texte 28/04, (Handbook for quality assurance for the measurement network for the Federal Environmental Agency, Germany), Dr.Klaus Nienerowski, Umweltbundesamt, Berlin, Juni 2004

http://www.umweltbundesamt.de/luft/luftmessnetze/ubamessnetz.htm


submitted by Federal Environmental Agency Germany



The WDCGG is operated by the Japan Meteorological Agency
in collaboration with the World Meteorological Organization