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Displaying 16 results.
    • Speech
    Evidence from silicon isotopes for pulses of sub-ice microbial activity during winter in the Lena River
    Opfergelt, Sophie[UCL] Gaspard, François[UCL] Hirst, Catherine[UCL] Monin, Laurence[UCL] Juhls, Bennet Morgenstern, Anne Overduin, Paul (2023) Goldschmidt 2023 — Lyon, France
    • Speech
    Combining geochemical and geophysical parameters to characterize permafrost degradation at Abisko, Sweden: implications for iron-organic carbon interactions
    du Bois d'Aische, Eléonore[UCL] Thomas, Maxime[UCL] Jonard, François Villani, Maëlle[UCL] Hirst, Catherine Giesler, Reiner Mörth, Carl-Magnus Opfergelt, Sophie[UCL] (2023) Arctic Science Summit Week — Vienne
    • Speech
    Tracking changes in iron organic carbon interactions upon permafrost thaw
    Opfergelt, Sophie[UCL] Monhonval, Arthur[UCL] Thomas, Maxime[UCL] (2023) Arctic Science Summit Week — Vienne
    • Speech
    Pulses of sub-ice microbial activity during winter: evidence from nitrate concentrations and silicon isotopes in the Lena River
    Opfergelt, Sophie[UCL] Gaspard, François[UCL] Hirst, Catherine[UCL] Monin, Laurence[UCL] Juhls, Bennet Morgenstern, Anne Overduin, Paul (2023) 6th European Conference on Permafrost — Puigcerdà, Catalonia, Spain
    • Speech
    Influence of rapid sea ice loss events on permafrost
    Osy de Zegwaart-Favart, Cécile[UCL] Massonnet, François[UCL] Opfergelt, Sophie[UCL] (2023) 6th European Conference on Permafrost — Puigcerdà
    • Speech
    Nanok Expedition: an ice triathlon in Greenland partnering with scientists for climate research
    Denis, Gilles Goffart, Nathan Opfergelt, Sophie[UCL] Bertrand, Bruno[UCL] Mattielli, Nadine Fettweis, Xavier Ahlstrom, Andreas P Defraigne, Pascale Bonneville, Steeve Boxho, Sibylle L. Box, Jason E Karlsson, Nanna B Bergeot, Nicolas[UCL] (2023) Goldschmidt 2023 — Lyon, France
    • Speech
    Tracing changes in mineral-organic carbon interactions upon permafrost thaw
    Opfergelt, Sophie[UCL] (2023) BrIAS Workshop 13 “Carbon and Climate Change – from the atmosphere to the bottom of the ocean” — Brussels
    • Speech
    The Changing Arctic Critical Zone
    Opfergelt, Sophie[UCL] (2023) Circle U Thematic seminar: Climate & Water — Berlin
    • Speech
    Tracking changes in iron organic carbon interactions upon permafrost thaw
    Opfergelt, Sophie[UCL] (2023) Invited talk at Bristol University — Online
    • Speech
    What are the hydrological controls on soil processes controlling carbon- and nutrient-efflux in the Critical Zone at the landscape scale?
    Henrion, Maud[UCL] Li, Yanfei[UCL] Thami, Adil[UCL] du Bois d'Aische, Eléonore[UCL] Jonard, François Lambot, Sébastien[UCL] Opfergelt, Sophie[UCL] Vanacker, Veerle[UCL] Van Oost, Kristof[UCL] (2023) Day of the Young Soil Scientist 2023 — Bruxelles
    • Speech
    Iron, manganese and aluminum solubility with permafrost thaw in an Arctic peatland: coupled geochemical and geophysical measurements
    du Bois d'Aische, Eléonore[UCL] Thomas, Maxime[UCL] Villani, Maëlle[UCL] Jonard, François Hirst, Catherine Giesler, Reiner Mörth, Carl-Magnus Lundin, Erik Opfergelt, Sophie[UCL] (2023) 6th European Conference on Permafrost — Puigcerdà
    • Speech
    Evolution of Fe oxides crystallinity in permafrost deposits from mid-Pleistocene to Holocene: implications for mineral organic carbon interactions
    Thomas, Maxime[UCL] Jongejans, Loeka L. Strauss, Jens Vermylen, Chloé Calcus, Sacha Opel, Thomas Opfergelt, Sophie[UCL] (2023) Goldschmidt 2023 — Lyon, France
    • Speech
    Flow-path changes in permafrost soils affect Fe-organic carbon interactions: evidence from silicon isotopes
    Villani, Maëlle[UCL] Hirst, Catherine[UCL] Thomas, Maxime[UCL] Eléonore du Bois d'Aische[UCL] Vanderelst, Sarah[UCL] Erik Lundin Reiner Giesler Magnus Mörth Opfergelt, Sophie[UCL] (2023) 6th European Conference on Permafrost (EUCOP 2023) — Puigcerdà (Catalonia, Spain)
    • Speech
    Combining geophysical data, microtopography, and very-high resolution UAV imagery to map lowland permafrost degradation in the Stordalen mire, Abisko, Sweden.
    Thomas, Maxime[UCL] du Bois d'Aische, Eléonore[UCL] Moenaert, Thomas[UCL] Villani, Maëlle[UCL] Hirst, Catherine[UCL] Lundin, Erik Jonard, François[UCL] Lambot, Sébastien[UCL] Van Oost, Kristof[UCL] Vanacker, Veerle[UCL] Giesler, Reiner Mörth, Carl-Magnus Opfergelt, Sophie[UCL] (2023) 6th European Conference on Permafrost — Puigcerdà, Catalonia, Spain
    • Speech
    More than one third of the organic carbon exposed by the world’s largest thaw slump (Batagay, Siberia) is not directly available for mineralization but geochemically stabilized
    Thomas, Maxime[UCL] Jongejans, Loeka L. Strauss, Jens Vermylen, Chloé Calcus, Sacha Monhonval, Arthur[UCL] Opel, Thomas Grosse, Guido Opfergelt, Sophie[UCL] (2023) 6th European Conference on Permafrost — Puigcerdà, Catalonia, Spain
    • Speech
    Identification of winter biogeochemical connectivity in permafrost soils using silicon isotopes and impact on Fe-organic carbon interactions (Stordalen, Sweden)
    Villani, Maëlle[UCL] Hirst, Catherine[UCL] du Bois d'Aische, Eléonore[UCL] Thomas, Maxime[UCL] Erik Lundin Reiner Giesler Magnus Mörth Opfergelt, Sophie[UCL] (2023) Coffee meeting — Potsdam, Germany