Details of Award
NERC Reference : NER/A/S/2003/00410
Model studies of the HOx and NOy budgets, mixing and composition of the North Atlantic free troposphere in support of ITOP.
Grant Award
- Principal Investigator:
- Professor M Chipperfield, University of Leeds, School of Earth and Environment
- Co-Investigator:
- Professor A Lewis, University of York, Chemistry
- Grant held at:
- University of Leeds, School of Earth and Environment
- Science Area:
- Atmospheric
- Overall Classification:
- Atmospheric
- ENRIs:
- Pollution and Waste
- Global Change
- Environmental Risks and Hazards
- Science Topics:
- Pollution
- Large Scale Dynamics/Transport
- Tropospheric Processes
- Atmospheric Kinetics
- Climate & Climate Change
- Abstract:
- It is now clear that regional air quality can be affected by long-range transport of pollutants. For example, pollutant emission from North America can be transported across the Atlantic can affect air quality in Europe. However, there are many uncertainties in the chemical and transport processes which allow this to occur. There are uncertainties in the budget of the hydroxyl radical (OH) which is the main species which removes pollution. There is also considerable uncertainty in the way the NOx pollution couples with other chemical species, which affects how far this particular pollutant can travel. In summer 2004 a major coordinated international aircraft campaign will take place. This will involve aircraft from both the USA and Europe, including the U.K. BAe 146. This campaign will provide unprecedented chemical observations on both sides of the North Atlantic and provide important new data on the concentration of pollutants. In our study we will use detailed modelling tools to exploit these new observations. We will investigate how models with detailed descriptions of 'oxygenated' hydrocarbon chemistry reproduce the observed concentrations of NOx and OH. In particular, we will investigate recent laboratory data which indicate the role of one such oxygenated hydrocarbon (acetone) is less important than previously thought and we will investigate other potentially important species. Then we will investigate how well two different approaches perform in reproducing the observed trans-Atlantic transport. This will enable us to assess uncertainties in the models which will lead to better tools for predictions in the future. Finally, we will use the models to build up a climatology of polluted air masses which arrive in Europe. This will allow us to determine the main factors which control the composition of polluted air arriving over the UK.
- NERC Reference:
- NER/A/S/2003/00410
- Grant Stage:
- Completed
- Scheme:
- Standard Grants Pre FEC
- Grant Status:
- Closed
- Programme:
- Standard Grant
This grant award has a total value of £130,570
FDAB - Financial Details (Award breakdown by headings)
| Total - T&S | Total - Staff | Total - Other Costs | Total - Indirect Costs | Total - Equipment |
|---|---|---|---|---|
| £7,750 | £82,396 | £523 | £37,902 | £2,000 |
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