Browsing NIVA Open Access Archive by Author "Heegaard, E."
Now showing items 1-2 of 2
-
The 12-year report: Acidification of Surface Water in Europe and North America Trends, biological recovery and heavy metals (ICP Waters report 52/2000)
Skjelkvåle, B.L.; Andersen, T.; Halvorsen, G.A.; Raddum, G.; Heegaard, E.; Stoddard, J. (NIVA-rapport;4208, Research report, 2000-02)The International Cooperative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes (ICP Waters) is designed to assess the degree and geographical extent of acidification of surface waters, evaluate ... -
Tracing recovery from acidification - a multivariate approach (ICP Waters report 69/2002)
Halvorsen, G.; Heegaard, E.; Raddum, G. (NIVA-rapport;4564, Research report, 2002-09)This report presents a method based on use of multivariate statistics to detect trends in aqutic biota as a results of chemical recovery from acidification. Three datasets from Norway, Sweden and UK are used in the work. ...