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Cross-Scale Observations & Modeling Integration

Group Leader: Louisa Emmons

Past and future field campaigns are a key component of quantifying sources and understanding chemical processing in the atmosphere. The combination of simulations from models, chamber studies, ground and aircraft observations, and satellite retrievals are being used in ACOM to answer outstanding science questions. This work will develop the scientific knowledge necessary for predicting air quality and quantify attribution of sources affecting air quality and health.

Our objectives include quantifying sources, fates and impact of reactive carbon species in the atmosphere.  We aim to quantify ozone and secondary aerosol production and loss, under different VOC and NOx regimes with:

 

TROPOMI movie frame
Figure 1. TROPOMI observes Siberian fire plumes.
Click to read full article.

Projects

 

Massive Smoke Plume from Siberian Fires Reaches North America.

Durinig FIREX-AQ, a continental-scale plume of carbon monoxide (CO) and other air pollutants from active fires in Siberia was mapped in near real-time by ACOM scientists, based on data provided by TROPOMI (the TROPOspheric Monitoring Instrument, on board ESA's Sentinel-5P platform). Figure 1 shows the plume in red on August 12, 2019. The TROPOMI measurements were valuable in comparing with model forecasts. Read more...

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ACOM | Atmospheric Chemistry Observations & Modeling