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Directory entires that have specified Svalbard as one of the geographic regions for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. Note that the list of regions is not hierarchical, and there is no relation between regions (e.g. a record tagged with Nunavut may not be tagged with Canada). To see the full list of regions, see the regions list. To browse the catalog based on the originating country (leady party), see the list of countries.
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The 2004-2007 scientific research program CHIMERPOL II consists in improving the results obtained during the CHIMERPOL I programme around three main ideas: 1-Understand physico-chemical processes of oxidation of elemental gaseous mercury in the atmosphere during Mercury Depletion Events (MDE) in Corbel, Svalbard from 2004 to 2007 with a continuous monitoring station for gaseous mercury and its speciation, 2-Evaluate deposition and emission fluxes of mercury above the Arctic snow pack by a continuous monitoring of these fluxes in Corbel, Svalbard and in Station Nord, Greenland, from 2005 to 2007. 3-Determine the Air-Snow-Firn-Ice transfer function for mercury and its speciation with a complete balance of mercury in the different compartments in Summit, Greenland from 2006 to 2007.
Study of the energy exchange between atmosphere, sea ice and ocean during freezing and melting conditions; within that, measurements of solar radiation (visible and UV) and optical properties, snow and sea ice characteristics, vertical heat and salt fluxes, oceanographic parameters.
During the spring/summer transition, sea ice and snow properties change considerably in response to warming and the eventual reversal of temperature gradients within the snow and ice. Snow melt water percolates down towards the colder snow/ice interface, where it refreezes to form superimposed ice. On sea ice this process occurs probably longer and more intensive than on land, because throughout the summer the ice and underlying seawater is always colder than the snow. In Antarctica superimposed ice may actually form layers of some decimeters in thickness. The objective of this study is to investigate the main processes and boundary conditions for superimposed ice formation, in recognition of its importance for Antarctic sea ice, and its possible importance for Arctic sea ice in case of environmental changes due to future climate change. This will be performed by means of modeling as well as by combined measurements of the temporal evolution of snow and ice properties and the energy budget.