1 / 14

Comparison of simple and advanced regional models in industrial regulation Bernard Fisher

Comparison of simple and advanced regional models in industrial regulation Bernard Fisher Risk Forecasting and Decision Science Environment Agency Examples of ozone prediction methods: when to apply?.

randy
Download Presentation

Comparison of simple and advanced regional models in industrial regulation Bernard Fisher

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Comparison of simple and advanced regional models in industrial regulation Bernard Fisher Risk Forecasting and Decision Science Environment Agency Examples of ozone prediction methods: when to apply?

  2. Difference field showing industrial plume contribution to daily maximum 1-hr O3 concentration for 24-27 June 2001

  3. Horizontal particle distribution 43 hours after the SO2 release simulated by the model HYSPLIT (left) and FLEXPART (right). The colour code gives the heights of the particles in metres

  4. Spectrum of Models Part 1 Example of ozone generation for industrial plumes Complex NAME Simple enclosing curves

  5. Ozone formed in NOx plume (1500 mid afternoon) constant wind direction and speed travel time in hours point source • Background: 20 ppb O3 and 50 ppb VOC • O3 maximum reached 106 ppb in domain.

  6. Scatter plot of hourly NO2 vs hourly NOx. hourly values with selected point sources. The background [O3] used for the enclosing curves was based on model results with all point sources removed. NAME III enclosing curves, Models-3 and empirical curve comparisons

  7. Spectrum of Models Part 2 Regional ozone Complex CMAQ EMEP Eulerian IDOP EMEP Lagrangian

  8. Ozone from: A - Didcot A power station and B - Kingsnorth power station. Ozone creation downwind of A during daytime, while ozone depletion is dominant downwind of B. The background concentration of VOCs downwind of A is much higher than that downwind of source B.

  9. The 24-h averaged O3 excess (left) and the daily maximum 1-hr ozone excess (right) on every simulation day for the June 2001 episode. The black dot is the location of the VOC source for IDOP comparison

  10. Application of the Integrated Downwind Ozone Production approach to the assessment of the environmental impact of four processes operating at a large industrial complex. Emissions quoted are illustrative only VOC species Emission IDOP Excess tonne hr-1ppb per ozone ppb tonne/ hr Oil refining acetylene 0.1 0.09 0.01 benzene 0.1 0.27 0.03 toluene 0.1 4.10 0.41 Total 0.3 0.45

  11. dAOT40c/dENOx EMEP Lagrangian model The unit is 10ppb.h per 40% emission reduction dAOT40c/dEVOC

  12. EMEP Eulerian model country source-receptor relationships for 2003 meteorology and 2003 emissions are given. The changes in UK ozone for changes in UK emissions on UK ozone are: ozone AOT40f at 3m -377 ppb.h per 15% emission reduction for NOx 351 ppb.h per 15% emission reduction for VOC SOMO35 -103 ppb.d per 15% emission reduction for NOx 55 ppb.d per 15% emission reduction for VOC

  13. Spectrum of Models Industrial plumes Complex NAME Simple enclosing curves Regional ozone Complex CMAQ EMEP Eulerian OSPM EMEP Lagrangian PTM Simple IDOP RAINS urban deficits ?????

More Related