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Actualités et séminaires

  • 10 oct Séminaire
    In-scaling measurements of the hydro- and cryosphere

    Whether collecting field data or running computer-based simulations, effectively measuring environmental processes across spatial and temporal scales has posed a persistent challenge for researchers. These challenges are particularly acute with regard to the hydro- and cryosphere, where fluxes of water can vary significantly across time and space. Emerging technologies and integrated methodological approaches provide a path forward to effectively scale measurements of the hydro and cryosphere, yielding better data that inform process-based discovery and scientific insights.

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  • 06 juin Séminaire
    Ce qui se retrouve sur notre sol, reflet de notre société ?
  • 02 juin Séminaire
    New developments for paleoclimate studies

    Lake sediments are useful to track a history of long-term environmental changes.  Environmental monitoring often extends back no more than a few decades, and is largely non-existent in remote places like the Arctic, which is currently experiencing some of the most rapid environmental change on Earth. Archival sediment records in the form of dated sediment cores can greatly enhance our knowledge of past environmental change because they can extend the time scales of studies by thousands of years and they are broadly distributed in the environment.

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  • 26 mai Séminaire
    A paleolimnological perspective on avian population dynamics and their effect on lake productivity in a rapidly warming Arctic

    Rapid warming since the 19th century is transforming the Arctic, including its freshwater ecosystems as warmer temperatures and greater nutrient inputs from a greening landscape are increasing lake and pond productivity. However, nutrients from growing avian nesting colonies can have a much greater effect on aquatic primary production, as undisturbed Arctic catchments have relatively low nutrient inputs. Therefore, a more complete assessment of climate warming’s influence on Arctic aquatic primary production should consider how warming may influence avian population dynamics.

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  • 16 mai Séminaire
    Evolutions futures des ressources en eau en France et conséquences possibles sur l’irrigation

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