1. RedCORE DG-13 issues lars M. Svendsen, chair of REDCORE DG

2. Workshop on MAI/CART assessment
HOD 50 agreed that ”…..the MAI/CART assessment methodology workshop will be organized in February 2017 when the recent assessment results are as ready as possible.”
At present it is not wise to decide on a date, but we still expect the WS in February – we should send invitation at the latest 2-3 month before the WS
Proposed items for WS agenda:
Presentation of draft assessments results on MAI/CART based on PLC data
Introduction of applied MAI/CART assessment methodology
How was assessment dataset established
Estimating uncertainty on input data
Flow normalization
Trend analysis including breakpoint detection

3. Workshop on MAI/CART assessment
Changes in inputs
Test of CART fulfilment
Discussion on applied assessment methodology:
Flow-normalization – how to take into account development i run off if any?
How to statistical detect development in inputs to Baltic Sea sub-bassin from CP’s:
Using break points
If the trend is significant but non-linear?
Evaluation CART (and MAI) fulfillment:
Use all information in the time series and estimate statistically latest years inputs?
Use x years average – but not include all information off the time series
How to estimate the uncertainty and take it into account

4. Workshop on MAI/CART assessment
Transboundary inputs and retention – revised data will require revision of CART!?
Revised dataset change reference inputs – need to revise CART’s?
Do we sufficiently take into account the methodology for quantifying inputs and uncertainties are rather different in CP and for transboundary inputs including deposition
Outline:
Presentation of the outline of the scientific report
Discussion of how to present the policy message with the three main issues:
Are the reduction targets acheived?
What is the distance from the target?
What is the trend in inputs?

5. Workshop on MAI/CART assessment
How to present key message/show the main results policy focused, simplistic, with the main message without compromising with science and should result be present CP by sub-basin (CART)
How can we present distance from the target (tons, % missing, how many years before fulfilment with present trend in inputs or ???)
Take into account extra reduction???
Trend in inputs when trend are not linear – how to show it simple
Divide workshop in a technical and policy part – over 1½ day in February 2017