1. Types, Pressures and Quality Elements - Rivers
4th Intercalibration Workshop March 17-18, 2003

2. River Intercalibration Regions
Separation in Nordic, Alpine, Central, Mediterranean regions
No need for a separate Atlantic ecoregion (as proposed for lakes)
For selected types, include (Northern) UK and Ireland in Nordic region, and Spain (and Portugal?) in the Central region
4th Intercalibration Workshop March 17-18, 2003

3. River Intercalibration Types
Core types proposed in the drafting group report too general to be used in the intercalibration
Different sets of types were defined for the geographical IC regions, based on the core types
4th Intercalibration Workshop March 17-18, 2003

4. River Intercalibration Types
Catchment area
Altitude & Geomorphology
Catchment geology & Alkalinity
Organic material (Nordic)
Flow regime (Mediterranean & Alpine)
4th Intercalibration Workshop March 17-18, 2003

5. River Intercalibration Types
Nordic: 8 types
Alpine: 2 types
Central: 6 types
Mediterranean: 5 types
4th Intercalibration Workshop March 17-18, 2003

6. 4th Intercalibration Workshop March 17-18, 2003
Nordic types
4th Intercalibration Workshop March 17-18, 2003

7. 4th Intercalibration Workshop March 17-18, 2003
Alpine Types
4th Intercalibration Workshop March 17-18, 2003

8. 4th Intercalibration Workshop March 17-18, 2003
Central Types
4th Intercalibration Workshop March 17-18, 2003

9. 4th Intercalibration Workshop March 17-18, 2003
Mediterranean Types
4th Intercalibration Workshop March 17-18, 2003

10. Nordic Intercalibration Groups
4th Intercalibration Workshop March 17-18, 2003

11. Alpine Intercalibration Groups
4th Intercalibration Workshop March 17-18, 2003

12. Central Intercalibration Groups
4th Intercalibration Workshop March 17-18, 2003

13. Med. Intercalibration Groups
4th Intercalibration Workshop March 17-18, 2003

14. 4th Intercalibration Workshop March 17-18, 2003
River IC Pressures
Effects of the pressures organic pollution and nutrients similar -- merged
Separation in pressures from urban and agricultural sourcess.
This results in 4 pressures for the intercalibration:
organic matter and nutrients (urban)
organic matter and nutrients (agricultural)
stream modification
acidification
Specified for the different IC types; for some types it is not possible to view the pressures separately.
4th Intercalibration Workshop March 17-18, 2003

15. 4th Intercalibration Workshop March 17-18, 2003
Pressures & QE - Nordic
4th Intercalibration Workshop March 17-18, 2003

16. 4th Intercalibration Workshop March 17-18, 2003
Pressures & QE - Alpine
4th Intercalibration Workshop March 17-18, 2003

17. Pressures & QE - Central
4th Intercalibration Workshop March 17-18, 2003

18. 4th Intercalibration Workshop March 17-18, 2003
Pressures & QE - Med.
4th Intercalibration Workshop March 17-18, 2003