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FAIRMODE CT9
Benchmarking platform for air quality projections
Kick-off
FAIRMODE Technical Meeting
October 2020
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FAIRMODE CTs
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Need for assessing planning applications
Assessment Planning
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Comparison S-CHIMERE / S-EMEP
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POMI exercise (2012)
• Several models applied to Po valley
Lombardy region.
• After several adjustments and several
scenarios simulated normalized
results are similar!
We learn from inter-comparisons
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QUESTION:
How to deal with the variability of model responses to emission
changes?
PROPOSAL:
An inter-comparison platform: To address the issue of the sensitivity of
model responses to emission changes, in particular to assess, discuss,
explain and minimize model discrepancies.
CT9 Platform | objective
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Platform intended to benchmark
and understand differences
among modelling system
responses to emission changes
• Wide set of cities in Europe (mostly EU capitals)
plus a few regions were defined.
• Main pollutants: PM, NO2 and O3
• Addressing both episodes and yearly averages
• Theoretical scenarios
• Intended both to local & European scale
modelling systems
• Platform rather than an exerciseintention is not to compare cityresponses among themselves but tocompare model results over a given city
CT9 Platform proposal
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8
EU-wide simulations
Short-term scenarios in
EU capitals and regions
• Sectorial
• Spatial
• Precursor
• Sensitivity analysis
Long-term scenarios in
few EU cities
• Sectorial
• Spatial
City and/or regional scenario modelling
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CT9 Platform proposal
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CT9 Platform proposal | steps
1. Generate EU-wide results with episode scenarios
In progress
2. Generate EU-wide results with long term scenarios
Done
3. Upload local results (region/city) for comparison
In progress
4. Build an visualization interface
Done
5. Assessment and understanding of differences
Waiting for additional results
6. Build processes to allow downloading specific city data
(BC, emissions, meteorology) for sensitivity analysis.
To do
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CT9 Platform proposal | steps
This inter-comparison platform would allow:
- understanding the variability of
models responses to emissions changes
- guide member states/cities in the
application of emission reduction
measures:
• Model system vs model system
(same/different scale)
• Model vs model
(with similar input data)
• Model version vs. model version
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Results example and comparison indicators
𝑃𝑐𝑖𝑡𝑦𝑐𝑒𝑛𝑡𝑒𝑟𝑝𝑜𝑖𝑛𝑡
𝛼 =∆𝐶𝑐𝑖𝑡𝑦
𝑐𝑒𝑛𝑡𝑒𝑟𝑝𝑜𝑖𝑛𝑡𝛼
𝛼
𝐶𝑖𝑡𝑦 = 𝐹𝑈𝐴 %reduction
Similar results mean
a linear response
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Results example and comparison indicators
𝑃𝑐𝑖𝑡𝑦𝑐𝑒𝑛𝑡𝑒𝑟𝑝𝑜𝑖𝑛𝑡
𝛼 =∆𝐶𝑐𝑖𝑡𝑦
𝑐𝑒𝑛𝑡𝑒𝑟𝑝𝑜𝑖𝑛𝑡𝛼
𝛼
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CT9 platform tool
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CT9 Platform proposal | NOTES
• Important to have model developers on board (local and European scales)
• The JRC has run EU-wide simulations with EMEP and will possibly do with WRF-CHEM to
populate the platform but other EU-wide with similar/other models/versions are welcome.
• Very important to get local scale modelling groups simulating their cities.
• (suggestions from some groups): inter-comparison up to the street level later stage
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CT9 participants/volunteers
Cristina Guerreiro, NILULeonor Tarrasson, NILUDaniel Brookes, Ricardo UKA. Megaritis, Patras, GRStijn Janssen, VITO Angela Morabito, Sardenia, ITFernando Martin, CIEMATMark Theobald, CIEMAT, SPA Adamopoulos, YPEKA, GR E Deangelis, UNIBS, iTRahela Zabkar, SLOVENIAAles Padro, TECNALIA Stephan Nordmann, UBA, DE Rafael Borge, UPM, SP Eva Gabucio, GENCAT
Shyn Tong, DEFRA, UK Laurence Rouil, INERISAugustin Colette, INERIS Ilaria delia, ENEA, IT Mihaela Mircea, ENEA, IT Antonio Piersanti, ENEA, IT Luisella Ciancarella, ENEA, IT Martijn Schaap, TNO J. Matejovicova, SHMU, SLEmilia Georgieva, BULGARIAGuido Pirovano, SER, IT Horvathz, SXE, HU Eivind Wærsted, NORWAYJonilda Kushta, CY Les White, Aeris Europe
Interested people: potential volunteers?• Pawel Durka & Joanna Str., PL
• M. Stortini & Giovanni, ARPAE, IT
• Claudia Flandorfer & Kathrin, ZAMG, AT
• Christian Nagl, Umweltbundesamt, AT
• Nina Benesova, CHMI, CZ
• Ulas Im, ENVS, DK
• Maria Luisa Volta, UNIBS, IT
• Sonia Vidic, DHZ, HR
• Ranjeet Sokhi, UK
• Alexandra Monteiro, PT
• Alexander de Meij, Kees Cuvalier, JRC
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Plans: next steps
Online meeting dedicated to CT9 work
DATE:
Middle of November?
WORKPLAN:
Explore the JRC results for Europe
Presentation and sharing the first local participants results
Discussion & brainstorming to next steps