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We used a collection of ten freeze cores of annually laminated (varved) lake sediment from Nylandssjö n in northern Sweden collected from 1979 to 2007 to follow the long-term loss of carbon (C) and nitrogen (N) due to processes that occur in the lake bottom as sediment ages. We compared specific years in the different cores. For example, the loss of C from(More)
Annually laminated (varved) lake sediments constitutes excellent environmental archives, and have the potential to play an important role for understanding past seasonal climate with their inherent annual time resolution and within-year seasonal patterns. We propose to use functional data analysis methods to extract the relevant information with respect to(More)
Som med vederbörligt tillstånd av rektorsämbetet vid Umeå universitet för erhållande av Filosofie doktorsexamen i miljövetenskap kommer att offentligen försvaras Title Diatoms as indicators of Holocene climate and environmental change in northern Sweden Abstract The objective of the thesis was to explore the potential of diatoms (Bacillariophyceae) as(More)
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