Revisiting five decades of 234Th data: a comprehensive global oceanic compilation

Autor: E. Ceballos-Romero, K. O. Buesseler, M. Villa-Alfageme

Publikováno v: Earth System Science Data, Vol 14, Pp 2639-2679 (2022)

We present here a global oceanic compilation of 234Th measurements that collects results from researchers and laboratories over a period exceeding 50 years. The origin of the 234Th sampling in the ocean goes back to 1967, when Bhat et al. (1969) init

Externí odkaz: https://doaj.org/article/78ecd82cd86a47d89bf1a8ca97ac7387

A microscopic simulation of particle flux in ocean waters: Application to radioactive pair disequilibrium

Autor: María Villa-Alfageme, E. Ceballos-Romero, F. De Soto

Publikováno v: Geochimica et Cosmochimica Acta. 239:136-158

The biological carbon pump, a fundamental component of the global carbon cycle, is a mechanism comprised of biological processes that transfer large amounts of organic carbon from the upper ocean to the ocean’s interior. It sequesters CO 2 for week

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1164d0a7322546d7e03da0b5e3d4bda
https://doi.org/10.1016/j.gca.2018.07.031

234 Th-Derived Particle Fluxes and Seasonal Variability: When Is the SS Assumption Reliable? Insights From a Novel Approach for Carbon Flux Simulation

Autor: Rafael García-Tenorio, E. Ceballos-Romero, F. De Soto, F. A. C. Le Moigne, María Villa-Alfageme

Publikováno v: Geophysical Research Letters
Geophysical Research Letters, American Geophysical Union, 2018, 45 (24), pp.13,414-13,426
Geophysical Research Letters, 45 (24). 13,414-13,426.
Geophysical Research Letters, 2018, 45, pp.13,414-13,426. ⟨10.1029/2018GL079968⟩
Geophysical Research Letters, 2018, 45 (24), pp.13,414-13,426

International audience; 234Th measurements are widely used to estimate the downward carbon flux of particles via the oceanic Biological Pump. Carbon export is evaluated from 234Th-238U disequilibrium assuming either steady state (SS) conditions, or i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af9a20e0424beec1c0b28af5a5037747
https://hal-amu.archives-ouvertes.fr/hal-02024183

Influence of bloom dynamics on Particle Export Efficiency in the North Atlantic: a comparative study of radioanalytical techniques and sediment traps

Autor: Chris M. Marsay, Stephanie A. Henson, E. Ceballos-Romero, F. A. C. Le Moigne, Rafael García-Tenorio, Richard Sanders, María Villa-Alfageme

Publikováno v: Marine Chemistry, 186 . pp. 198-210.
Marine Chemistry
Marine Chemistry, Elsevier, 2016, 186, pp.198-210. ⟨10.1016/j.marchem.2016.10.001⟩

Highlights: • Performances of 3 methods to obtain POC flux and export efficiency are examined. • Bloom dynamics and sampling date must be associated to the method time scale. • Discrepancies between PEALAGRA, 234Th and 210Po methods are satisfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2cfd8d47f6ce62041a075e995cff88d
https://eprints.soton.ac.uk/403564/

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