1 / 9

Technical Intercomparison and Regional Phenomena Understanding - ESCOMPTE Meeting Summary

The ESCOMPTE meeting on November 18-19, 2004, focused on the technical intercomparison of models and understanding regional pollution phenomena, particularly related to ozone (O3) formation. Presentations covered model validation, comparisons with observational data, and methods to enhance model performance. Key discussions included recommendations for meso-scale modeling, factors influencing O3 peak formation, and the importance of meteorological conditions. Collaborative links between the measurement and modeling communities were established to ensure effective understanding and forecasting of regional phenomena.

ailis
Télécharger la présentation

Technical Intercomparison and Regional Phenomena Understanding - ESCOMPTE Meeting Summary

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. 18-19 nov. 2004 • I – TECHNICAL INTERCOMPARISON • II – HELP FOR UNDERSTANDING REGIONAL PHENOMENA • III – LINK WITH PRIMEQUAL-ESCOMPTE

  2. 18-19 nov. 2004 • I – TECHNICAL INTERCOMPARISON • AIRMARAIX actions in the next weeks • Better choice of color legend to recognize models • AIRMARAIX could provide max O3 maps with the same color used by FB (ppb) • EXCEEDANCE • New reglementary threshold could be check up. The complete list of these thresholds could be send • VALIDATION • AIRMARAIX has to check again some 03 maxima • Description of characteristic stations

  3. 18-19 nov. 2004 • I – TECHNICAL INTERCOMPARISON • SYNTHESIS FOR EACH MODEL • Does the model reproduce physics and chemistry during ESCOMPTE IOPs ? (Comparison with observations, statistics, etc…) • - Yes it does , why ? • No it does not, why ? • Defaults / qualities / statistics / scores etc …

  4. 18-19 nov. 2004 • I – TECHNICAL INTERCOMPARISON • IS IT POSSIBLE TO EXTRACT TENDENCIES AMONG ESCOMPTE INVOLVED MODELS ? • For instance : • - Different ways of using the same model have been presented : • Nesting with 3 or 4 imbricates grids gives better results than nesting with only 2 imbricates grids ? • Different ways of using resolution (horizontal and vertical) ? • Different ways of using conditions of limits ? • Is it possible to extract kind of recommendations for Meso-scale modelling : • Help for scenarios reproduction and forecast

  5. 18-19 nov. 2004 • II – HELP FOR UNDERSTANDING REGIONAL PHENOMENA • SYNTHESIS OF INTERCOMPARISON EXERCICE • A LIST OF MAIN PHENOMENA WELL REPRODUCED ? • DOES IT MAKE SENS ? LINKS WITH « MEASUREMENTS TEAMS » SEAMS NECESSARY (MTD group) COMPARISON LIDAR, BALOONS, RADAR UHF VERSUS MODELLING HAS BEEN PERFORMED

  6. 18-19 nov. 2004 • II – HELP FOR UNDERSTANDING REGIONAL PHENOMENA WE STILL HAVE «  SIMPLE » QUESTIONS : DYNAMICS : • WHAT ARE THE MAIN METEOROLOGICAL PARAMETERS INVOLVED IN O3 PEAK FORMATION ? WHAT ARE THE MAIN NECESSARY MET CONDITIONS TO GET POLLUTION ? Vertical and horizontal flows (T, V, Hum. BL height, cloudiness,…) What is the representation of alternativ valley-breeze/ sea-breeze phenomenon ? Vertical structure ?

  7. 18-19 nov. 2004 • II – HELP FOR UNDERSTANDING REGIONAL PHENOMENA CHEMISTRY • WHERE GOES THE O3 PLUME ? • HOW FAR ? HOW FAST ? HOW IT APPEARS ? • WHAT ARE THE MAIN PARAMETERS INVOLVED IN O3 PEAK FORMATION ? • MAIN POLLUTANTS INVOLVED, AEROSOLS ? RESERVOIR EFFECT (OVER THE SEA) SPECIAL VERTICAL SECTIONS COULD BE DECIDED • DOES O3 FORMATION FOLLOWS FRONT BREEZE ? • O3 VELOCITY FORMATION ? O3 VELOCITY DEPOSITION ? • Etc …

  8. 18-19 nov. 2004 • III – LINK WITH PRIMEQUAL-ESCOMPTE • ESCOMPTE MEASUREMENT COMMUNITY • ESCOMPTE MODELLING COMMUNITY SELECTION OF QUESTIONS ? SOME ANSWERS MARSEILLE : FEB 2005 : ESCOMPTE FINAL MEETING PRIMEQUAL ESCOMPTE : SCENARIOS PRIMEQUAL ESCOMPTE : VALORIZATION

  9. 18-19 nov. 2004 • III – LINK WITH PRIMEQUAL-ESCOMPTE • ARE MAIN PHENOMENA WELL UNDERSTOOD (REPRESENTATED) BY MODELS AND BY THE INTERCOMPARISON EXCERCICE ? • AMONG THESES, WHAT ARE PHENOMENA YOU WANT TO VALORISE, ILLUSTRATE AND POPULARIZE ? • In this context : • A LIST OF REPRESENTATIONS (MAPS, ANIMATIONS) WILL BE PREPARED AND PROPOSED TO YOU (GAS Group) • A VALIDATION (IMPLEMENTATION) OF THIS LIST WILL BE SINCERELY APPRECIATED

More Related