The five members of the Svalbard Scientific Skiing Expedition, colloquially known as the “Frozen Five”, met in Grenoble last week for the final preparations before embarking on their 11 week voyage through the Arctic wilderness on the 29th March. We’re a group of graduate students of various geosciences that met at UNIS in Longyearbyen during our diverse university careers. From March-June 2007, we will be skiing across the length of Spitsbergen, Svalbard’s largest island. The route, measuring about 1000 km, will take us over numerous glaciers, patches of sea ice and through the territory of the polar bear. Through this expedition, we wish to share our passion for the Arctic regions with the general public and, in particular, high school students. Blo...

Terrestrial ecosystems in Arctic and Antarctic: effects of UV light, liquefying ice, and ascending temperatures (TARANTELLA)

Predicted changes in climate and ozone concentrations in the Polar Regions make it critically important to understand how changes in key environmental factors influence polar terrestrial ecosystems via the modification of their individual but interconnected components.

Observational and experimental research on the effect of climate change and ozone depletion is affiliated to international research programmes including the EBA, Evolution and Biodiversity in the Antarctic project, SCAR in the Antarctic, and in the Arctic to ITEX, International Tundra Experiment as well as IGBP-GCTE.

TARANTELLA aims to coordinate these studies by focusing on the experimental approach, in both the Arctic, in collaboration with ITEX, and in the Antarctic.

A common methodology is used, the so-called Open-Top Chambers (OTC) or small greenhouses for temperature manipulations; for UV-B field research, UV-B supplementation (lamps) and/or UV-B exclusion (foils), are used to experimentally establish varied UV-B levels.

There is increasing recognition that multiple environmental changes are occurring in the northern regions of Europe. Some of these environmental changes, for example climate warming, levels of UV-B radiation, and habitat fragmentation, are projected to continue leading to impacts on the lands of the Nordic countries unprecedented since deglaciation some 10,000 year ago. Three ENVISNAR projects studying these processes are profiled below:

Internationally Coordinated Studies on Antarctic Environmental Status , Biodiversity and Ecosystems EBESA will study the effects of climatic and environmental changes, and the impact of man-made contaminants, on organisms and ecosystems of northern Victoria Land, James Ross Island, and Patagonia. We intend to establish possible sources, deposition patterns, and biological effects of persistant pollutants. We will also collect key organisms, such as moss and lichens, in order to study their origin and evolutionary response to different climate and environment.

The development of a polar-based photobioreactor for the production of bioactive compounds by indigenous micro-algae and cyanobacteria.

The Network for ARCtic Climate and Biological DIVersity Studies (ARCDIV) is a multidisciplinary international research initiative. The project explores the diversity of ecosystem on Arctic archipelago Svalbard, central part of Isfjorden, Billefjorden and Petuniabukta, by integrating existing and new intensive measurements of key biological and physical variables and processes.

The SCAR-programme EBA (2004-13) will address the impacts of climate change on species biodiversity, evolutionary adaptations and depletion of marine fisheries on community dynamics in the Southern Ocean. A better understanding of the effect of such changes will be obtained by investigating the acclimatory responses to high latitudes. It will contribute to development of a baseline understanding of sensitive ecosystems.