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Schauinsland
-O3-
| Observation |
| Category |
: |
Air sampling observation |
| Situation |
: |
ongoing |
| Time zone |
: |
Local time 1 |
| Sampling |
| Sampling height |
: |
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| Description |
: |
continuous |
| Sampling and analysis frequency |
: |
Continuous |
| Sampling environment |
: |
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| Description for sampling analysis |
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UV-Absorption, height of the line is 12 meters above the ground and 9 m over the top of the measurement station.
Data is sampled continuously and averaged every 10 minutes. |
| Instrument and Analysis |
| Measurement method |
: |
Light absorption analysis (UV) |
| Current status and history of instrument |
: |
UV Absorption |
| Description of instrument |
: |
1981 01 - 1996 05 : Dasibi
1996 06 - 2004 07 : Monitor Labs
2004 07 - : Horiba
1981 01 - 1996 05 : 1003
1996 06 - 2004 07 : 9812
2004 07 - : APOA 360 E, # 308002
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| Calibration |
| Current scale employed in the measurement |
: |
All data are based on UBA scale. |
| Measurement calibration |
: |
Calibration gas: Photolytic calibrator TE 49PS as transfer standard, traceable to NIST Standard Reference Photometer. Calibrations 2 time in a year (Zero/Span). Automatic zero/span check with internal O3 source every 24 hours. |
| Scale and calibration(treasability) |
: |
All data are based on UBA scale. |
| Data Processing |
| Measurement unit |
: |
ppb |
| Data processing |
: |
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| Processing for averaging |
: |
Processing for Hourly Data:
The data acquisition system provides one averaged value every 10 minutes. Invalid data caused by local impact, malfunction or other effects are detected by comparison and correlation with other trace substances and meteorological data and also with information from the station logbook and then are rejected. 30 min mean values are generated by calculating the arithmetic mean of the remaining data with more than 2/3 of all data. For reporting to WDCGG hourly mean values are calculated from these half hourly data.
Processing for Daily Data:
Take the arithmetic mean of selected half hourly data with the number of data more than 31.
Processing for Monthly Data:
Take the arithmetic mean of selected half hourly data with the number of data more than 960. |
| Data flag |
: |
hourly:
0 = valid value,
3 = invalid data,
6 = calibration |
| Data remarks |
: |
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| Other Information |
| Scientific aim |
: |
To provide reliable data for research to reveal long term trends of air pollution, long distance transport and climate change in Central Europe. |
| 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
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| submitted by Federal Environmental Agency Germany |
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