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Validation of OMI tropospheric NO2 column data using MAX-DOAS measurements deep inside the North China Plain in June 2006: Mount Tai Experiment 2006
- Source :
- Atmospheric Chemistry and Physics, Vol 8, Iss 22, Pp 6577-6586 (2008)
- Publication Year :
- 2008
- Publisher :
- Copernicus Publications, 2008.
-
Abstract
- A challenge for the quantitative analysis of tropospheric nitrogen dioxide (NO2) column data from satellite observations is posed partly by the lack of satellite-independent observations for validation. We performed such observations of the tropospheric NO2 column using the ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) technique in the North China Plain (NCP) from 29 May to 29 June, 2006. Comparisons between tropospheric NO2 columns measured by MAX-DOAS and the Ozone Monitoring Instrument (OMI) onboard the Aura satellite indicate that OMI data (the standard product, version 3) over NCP may have a positive bias of 1.6×1015 molecules cm−2 (20%), yet within the uncertainty of the OMI data. Combining these results with literature validation results for the US, Europe, and Pacific Ocean suggests that a bias of +20%/−30% is a reasonable estimate, accounting for different regions.
Details
- Language :
- English
- ISSN :
- 16807316 and 16807324
- Volume :
- 8
- Issue :
- 22
- Database :
- Directory of Open Access Journals
- Journal :
- Atmospheric Chemistry and Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.bf007529f1841e583a95ff6c676556f
- Document Type :
- article