Dirigibile Italia, Ny-Ålesund: projects/activities

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Displaying: 1 - 2 of 2
1. Determination of atmospheric fluxes of Radionuclides, Heavy Metals and Persistent Organic pollutants in well defined watershed, lakes and coastal marine sediments of Svalbard from the beginning of nuclear age

The 2003 field activity will be mainly dedicated to coring activity which includes: 1. the sampling of snow and ice cores from a Ny-Ålesund nearby glacier (midre Lovenbreen). 2. the collection of near coast (Kongsfjorden) and lakes sediments (maximum under pack depth 30 m). Sampling collection of ice and sediment cores will be performed using a portable, electric operated, sampling corer. The transport of all materials up to each sampling station should be performed with snowcats.

Atmospheric processes Biology Hydrography Heavy metals Radioactivity Radionuclides Arctic Persistent organic pollutants (POPs) Sediments Atmosphere Ecosystems
2. Role of organic and inorganic particles in the mobility of radionuclides in the Kongsfjord-Krossfjord system (MORAK)

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.

Glaciers Hydrography Climate Sea ice Contaminant transport Radionuclides Oceanography Arctic Sediments Ocean currents