| Water category: | Lake |
| Pressure categories | Nutrients |
| Pressure detail | Related to TotP and TotN loads, but also to other factors contributing to transparency |
| Specific Index | Secchi disk depth |
| Brief text description | Relationship between Scchi disk depth and chlorophyll-a |
| Long text description | The relationshps describes the maximum Secchi depth at given chlorophyll a concentration, epressed as: 1/SDmax = 0.16 + 0.010chl |
| History of development | This study is related to chlorophyll a and nutrient concentration/nutrien loading relationships, and thus traces back to Vollenweider's model (1976) |
| References | Portielje, R. and D.T. Van der Molen. 1999. Relationships between eutrophication variables: from nutrient loading to transparency. |
| Geographic region (GIG) - L | LNO - Northern LAL - Alpine LME - Mediterranean |
| Ecoregion - LR | 1. Iberic - Macaronesian region 4. Alps 5. Dinaric Western Balkan 11. Hungarian Lowlands 12. Pontic Province 13. Western Plains 14. Central Plains 15. Baltic Province 16. Eastern Plains 17. Ireland and Northern Ireland 18. Great Britain 19. Iceland 20. Boralic Uplands 21. Tundra 22. Fenno-Scandian shield 23. Taiga 24. The Caucasus 25. Caspic depression 26. Guadaloupe/Martinique 27. Guyane 28. La Reunion 29. Cyprus |
| Country | D Germany B Belgium DK Denmark NL Netherlands P Portugal FIN Finland S Sweden UK United Kingdom BG Bulgaria CY Cyprus CZ Czech Republic EE Estonia HU Hungary LV Latvia LT Lithuania MT Malta PL Poland RO Romania SK Slovakia SI Slovenia TR Turkey NO Norway XX Other country |
| Geographical location of source data | National |
| Reference conditions | Not considered |
| Development | Existing |
| Uncertainty | Considered |
| Link to document store | No |
| BMW Toolbox | No |
| Entry status | Unvalidated |