1. Links with WGE Augustin Colette & Oksana Tarasova
17th TFMM annual meeting – Utrecht (The Netherlands)

2. Context
TFMM Workplan
Executive Body 2015 Decision « ECE/EB.AIR/2015/1 »
WGE has ICP on integrated monitoring
What is the role of the TF on Reactive Nitrogen, they are also involved in effects assessmnet
What about integrated modelling?

3. Monitoring Differences in measurement strategies
Specific connection with International Cooperative Programme on Integrated Monitoring of Air Pollution Effects on Ecosystems (ICP IM)
Measurement Manual refers to EMEP measurement methods for atmospheric chemistry and precipitation chemistry, but there are many more groups in WGE

4. WGE observational programs
7 Methodology and Reporting of Subprogrammes
The methodology and reporting are covered in each of the following subprogrammes
7.1 Subprogramme AM: Meteorology  7.2 Subprogramme AC: Air chemistry  7.3 Subprogramme PC: Precipitation chemistry  7.4 Optional subprogramme MC: Metal chemistry of mosses  7.5 Subprogramme TF: Throughfall  7.6 Optional subprogramme SF: Stemflow  7.7 Subprogramme SC: Soil chemistry  7.8 Subprogramme SW: Soil water chemistry  7.9 Optional subprogramme GW: Groundwater chemistry  Subprogramme RW: Runoff water chemistry  Optional subprogramme LC: Lake water chemistry  Subprogramme FC: Foliage chemistry  Subprogramme LF: Litterfall chemistry  Optional subprogramme RB: Hydrobiology of streams  Optional subprogramme LB: Hydrobiology of lakes  Optional subprogramme FD: Forest damage  Subprogramme VG: Vegetation (intensive plot)  Optional subprogramme BI: Tree bioelements and tree indication  Optional subprogramme VS: Vegetation structure and species cover  Subprogramme EP: Trunk epiphytes  Optional subprogramme AL: Aerial green algae  Optional subprogramme MB: Microbial decomposition  Optional subprogramme TA: Toxicity assessment  Optional subprogramme BB: Inventory of birds  Optional subprogramme PH: Phenological observations

5. Modelling
relative change in PM2.5 exposure the EMEP model (%)
TFMM has a long history of EMEP/MSC-W benchmarking through Eurodelta
Can we take stock of Eurodelta work in terms of Impact Modelling
What is the translation of discrepancies between models in terms of
Health
Ecosystem
Crops
Climate
std dev. of the relative change in the 6-model ensemble

6. Assessment
Even if measurement techniques differ, trends offer an interesting case study to reconcile WGE & EMEP approaches
ICP Vegetation 2016 Trend brochure:
“Despite a European decline in ozone concentrations of more than 60 ppb, AOT40 did not show any trend, apart from a decline in Slovenia”
WGE Trend Report
“difference in SOMO35 levels between and At the country level, there is no clear change for the period of 2000–2012 in the WHO European Region Member States”
TFMM 2016 Trend Report
“human and vegetation exposure levels (as measured by SOMO35 and AOT40, respectively) that have experienced a relative decrease of 30 and 37%, respectively, from 2002 to 2012
ICP Veg Trend Brochure, 2016
WGE Trend Report, 2015

7. Next steps
Setup a contact group (4-6 pers) with WGE to work on the main issues
Volunteers ?