The aims of the project are: - to evaluate the fluxes of radionuclides in the water column and their accumulation in the sediment, on a short-time scale; - to determine the C/N and delta13C-delta15N ratios in suspended and sedimentary matter, and test their use as tracers of origin, composition and transformation pathways of organic particles. The selected study area is the Kongsfjord-Krossfjord system, Svalbard, considered as representative test-site for studying processes occurring in Arctic fjords. The focus of the project will be on the processes occurring at the glacier-sea interface, where enhanced lithogenic and biogenic particle fluxes are reported in summer. Specific methods will be used to trace the particle sources. The rate of accumulation-resuspension processes will also be investigated from the inner fjord to the outer continental shelf.
Surficial marine sediment cores. Sliced into 1-cm horizons for vertical profiles of contaminants(mainly: natural and anthropogenic radionuclides)
ENEA-MERC Data Bank for info on vertical profiles. ENEA-MERC Historical Archive for spare sediment samples. Sampled and data are stored permanently.
Sediment cores taken using a box-corer. Cores are quickly sliced in 1-cm intervals and stored in plastic cans until analysed. Analyses of gamma-emitting natural and anthropogenic radionucles are carried out via high-resolution spectrometry.
QA/QC are regularly checked analysing Standard Reference Materials (NIST)and participating at international Inteercomparison Exercises (IAEA)
9 European Scientific Institution from 8 countries have been involved in the "REMOTRANS" Eu-funded programme, in which this project is included
EU "ARMARA" Arctic Marine Radioecology, 1996-1999