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Provenance And tranSport PathwayS of mArine proxy-bearinG particlEs

Understanding the nature and pace of climate change in the future requires robust and accurate information on past Earth's climate changes. Much of what we know about past short-term climate variability stems from marine sediment... ver más

31/08/2027

USAL

1M€

Presupuesto del proyecto: 1M€

Líder del proyecto

UNIVERSIDAD DE SALAMANCA No se ha especificado una descripción o un objeto social para esta compañía.

Total investigadores 1149

Ver 2 Participantes

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2022-04-11

ERC-2021-STG: ERC STARTING GRANTS Scope:Objectives

I+D

Cerrada hace 3 años

0% 100% 100%

2 Participantes

USAL

1.50M€ | Lider

CSIC

923.62K€ | Participante

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Duración del proyecto: 64 meses Fecha Inicio: 2022-04-11
Fecha Fin: 2027-08-31

Líder del proyecto

UNIVERSIDAD DE SALAMANCA No se ha especificado una descripción o un objeto social para esta compañía.

Total investigadores 1149

Presupuesto del proyecto 1M€

Descripción del proyecto Understanding the nature and pace of climate change in the future requires robust and accurate information on past Earth's climate changes. Much of what we know about past short-term climate variability stems from marine sediment sequences, whose sedimentary components provide an ever-expanding array of paleoclimatic proxies. The fundamental assumption underlying most paleoceanographic investigations is that the environmental signal encapsulated in marine sedimentary components reflects that of the overlying water column at the time of formation. However, evidence indicates asynchronous synthesis and transport from distal locations for co-deposited sediment constituents. Consequently, fundamental questions arise regarding the fidelity of paleoclimate records. Moreover, the magnitude of such temporal and spatial offsets likely varies in concert with hydrographic ? and associated hydrodynamic - changes. Here, I outline a research program to directly assess the impact of hydrodynamic processes on marine particles and explore implications for paleoceanographic studies. Specifically, this research will: (i) estimate the contribution of allochthonous/asynchronous material; (ii) constrain the extent and nature of the specific modes of particle transport; (iii) quantify their potential to bias derived climate signals; (iv) correct for aliased proxy records and reconstruct past hydrodynamic changes. This work would provide a crucial advance in our ability to reliably interpret sub-millennial scale climatic signals. We will develop cutting-edge methodologies for particle isolation and will apply state-of-the art analytical techniques for compound-specific radiocarbon (14C) determination. The timeliness of this project is fostered by the recent advances in 14C detection for measurement of ultra-small samples. Equipped with the required theoretical grounds and analytical expertise, I am ideally positioned to effectively execute this challenging project.

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