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Contents 1 Rhusar: What is the OMI NO2 data useful for? 2 ....RHusar: Possible uses at EPA

[new][edit][reply] Rhusar: What is the OMI NO2 data useful for?

The Near Real-Time (NRT) NO2 data from the OMI satellite sensor clearly offers a brand new view of air pollution. A collection of the daily NO2 images (4 MB PDF) for 2006 may give you an idea on the nature of this monitoring data resource. Clearly, the OMI NO2 is an indicator of urban, industrial NO2 column concentration. Major biomass fires can also produce OMI NO2 signal. However, major interpretation issues remain such as: What is the characteristic elevation of the columnar NO2? Can the absolute magnitude of the columnar signal be used or just the relative spatial pattern? I am not an expert on this product; would anyone suggest authorititative papers on the air pollution USE of the OMI NO2 data? Rhusar 22:30, 21 December 2006 (CST)

[new][edit][reply] ....RHusar: Possible uses at EPA

Just to break the ice, here is a response to my own question. The utility of these products depends on its application. From my limited perspective, here are some..Please do not hesitate to disagree.

1. Hemispheric Transport of Air Pollutants (HTAP), Terry Keating & Ande Zuber. The satellite NO2 data are already being used for testing and constraining global models, emission inventory development, etc. At the January 2007, HTAP meeting in Geneva, there will be several reports on the utilization of this satellite product.

2. Exceptional Event Rule, Neil Frank (OAQPS). Exceptional Event Flags can now be added to the PM2.5 monitoring data, provided that the States can supply appropriate evidence to support the exceptional claim.  The new NRT NO2 product will be a significant addition to the current data resource pool, particularly for the mysterious Midwestern winter aerosol nitrate events. 

3. AIRNow, air quality information delivery to the public, Brad Johns. The impressive satellite NO2 images could considerably enhance the currently presented air pollution indices in AIRNow. However, we would need to learn more about this product before we could explain its meaning to the public. Rhusar 22:30, 21 December 2006 (CST)