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	Provedor de dados ArchiMer (2) Autor Kurahashi-nakamura, Takasumi (2) Paul, Andre (2) Losch, Martin (1) Merkel, Ute (1) Munhoven, Guy (1) Schulz, Michael (1) Mais... Palavra-chave AMOC (1) Data assimilation (1) Last Glacial Maximum (1) Ocean circulation (1) Ocean general circulation model (1) Proxy records (1) Mais... Tipo do documento Text (2) Ano 2020 (1) 2017 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Coupling of a sediment diagenesis model (MEDUSA) and an Earth system model (CESM1.2): a contribution toward enhanced marine biogeochemical modelling and long-term climate simulations ArchiMer Kurahashi-nakamura, Takasumi; Paul, Andre; Munhoven, Guy; Merkel, Ute; Schulz, Michael. We developed a coupling scheme for the Community Earth System Model version 1.2 (CESM1.2) and the Model of Early Diagenesis in the Upper Sediment of Adjustable complexity (MEDUSA), and explored the effects of the coupling on solid components in the upper sediment and on bottom seawater chemistry by comparing the coupled model's behaviour with that of the uncoupled CESM having a simplified treatment of sediment processes. CESM is a fully coupled atmosphere-ocean-sea-ice-land model and its ocean component (the Parallel Ocean Program version 2; POP2) includes a biogeochemical component (the Biogeochemical Elemental Cycling model; BEC). MEDUSA was coupled to POP2 in an offline manner so that each of the models ran separately and sequentially with regular... Tipo: Text Ano: 2020 URL: https://archimer.ifremer.fr/doc/00676/78790/81068.pdf Dynamical reconstruction of the global ocean state during the Last Glacial Maximum ArchiMer Kurahashi-nakamura, Takasumi; Paul, Andre; Losch, Martin. The global ocean state for the modern age and for the Last Glacial Maximum (LGM) was dynamically reconstructed with a sophisticated data assimilation technique. A substantial amount of data including global seawater temperature, salinity (only for the modern estimate), and the isotopic composition of oxygen and carbon (only in the Atlantic for the LGM) were integrated into an ocean general circulation model with the help of the adjoint method, thereby the model was optimized to reconstruct plausible continuous fields of tracers, overturning circulation and water mass distribution. The adjoint-based LGM state estimation of this study represents the state of the art in terms of the length of forward model runs, the number of observations assimilated, and the... Tipo: Text Palavras-chave: Last Glacial Maximum; Ocean circulation; AMOC; Proxy records; Ocean general circulation model; Data assimilation. Ano: 2017 URL: https://archimer.ifremer.fr/doc/00383/49466/49951.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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