Actualités et séminaires

  • 01 mar Séminaire

    In the early stage of numerical model development, owing to limited computation capabilities simplified formulation were used to simulate physical processes. Hence, in the 80s and 90s, climate models are structured to simulate atmospheric and oceanic processes at the scale of the Earth system. It is only in the 2000s, that, for instance, ecosystems components have been included in the IPSL- Earth system climate model which has resulted in a continuous increase of model complexity.

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  • 20 fév Séminaire

    Geophysical methods, in particular, spectral induced polarization SIP, capture the changing electrical properties of geologic media as they are modified by biogeochemical reactions. Their unique sensitivity to biogeochemically-induced changes poises non-invasive geophysical approaches at the forefront of novel methodologies that can revolutionize our ability to access the poorly accessible subsurface.

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  • 12 fév Actualité

    Thomas Thiebault présentera son HDR [habilitation à diriger des recherches] le lundi 12 février 2024.
    Titre : "Les produits pharmaceutiques dans les environnements anthropisés, de la mesure de la contamination à l'information sur les usages"

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  • 09 fév Séminaire

    The stability of methane hydrates at continental margins faces a significant threat from rising ocean temperatures. This scenario could potentially trigger the release of substantial (yet unconstrained) amounts of methane into the overlying water column and eventually into the atmosphere. Within marine sediments, the biologically mediated process of anaerobic oxidation of methane (AOM) is critical in mitigating such benthic methane discharge. However, AOM is not always ‘super’-efficient. There are two reasons why.

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  • 02 fév Séminaire

    Considerable quantities of soil organic carbon (SOC) can be sequestered in agricultural land by adopting practices broadly known as carbon farming. Two main options for SOC sequestration in arable land are to (1) replace annual crops for perennial crops such as grass or forage legumes, and (2) grow cover crops. Experimental evidence shows that additional perennials and cover crops in temperate agriculture can sequester ca. 300-600 kg C/ha/year.

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