Drift diatoms: A new tracer for assessing geographic sources of water?

(1) Department Environment and Agro-Biotechnologies, Centre de Recherche Public Gabriel Lippmann, Belvaux, Luxembourg (wrede@lippmann.lu / Fax: +352 47 02 64), (2) Water Resources Section, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands, (3) Department of Forest Engineering, Resources and Management, Oregon State University, Corvallis, USA, (4) Department of Water Engineering, UNESCO-IHE, Delft, The Netherlands