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职业迁徙
个人简介
The main axis of my research is to characterize and quantify downward organic carbon fluxes to unravel biological pump functioning, a complex mechanism in which phytoplankton communities play a major role on establish carbon flows through the marine food chain and on determining the capacity of the ocean to fix atmospheric CO2, a gas that unquestionably increase during the last decades. In a context of climate change, this research line is essential for assessing possible climate alterations of the marine habitats and ecosystem functioning.
During my research career I have shed light on the physical, biogeochemical and sedimentological processes controlling the transport of particulate material falling down through the water column by using data obtained from both mooring arrays dotted with currentmeters and sediment traps, and sediment cores. I have worked in completely different environments that embrace from the oligotrophic Mediterranean Sea to the highly productive NW Iberian upwelling system, passing through the Southern Ocean, providing me with a deep knowledge but also a holistic understanding of the marine ecosystems operation.
Recently, my research was principally focused on determining the role that physical and biological processes has on the transfer of organic carbon from the surface productive layer to the deep waters in the NW Iberian margin, the unique coastal upwelling regime of Europe that sustains important economic activities related with fishing and aquaculture. With this investigation I have found that upwelling favorable winds in this highly productive area clearly regulate the quantity and quality of the downward organic carbon fluxes escaping from the surface productive layer, being those fluxes highly influenced by the structure of the phytoplankton community responding to seasonal winds. Conclusions derived from these works have contributed to unravel biological carbon pump functioning in this region, which become a cornerstone for preserve marine ecosystem health.
Actually, I am interested in the know-how of coastal upwelling in the NW Iberian margin. I seek to address uncertainties regarding the timing and strength of wind-driven coastal upwelling along this margin in the next decades. Will they increase? Or will they decrease? This is particularly important because variations in regional winds modify the phytoplankton community structure, which ultimately affect productivity and carbon cycling. To tackle this issue, it is required a deep knowledge of how upwelling winds regime was in the recent past. Since no instrumental data cover more than forty years, I propose to reconstruct variations of the upwelling favorable winds and its associated productivity for the last hundred years by analyzing diverse biogeochemical proxies (to test my hypothesis in Zúñiga et al.-BGS-2017) in high resolution sediment cores. This research line, previously tested in other upwelling regions, has not been explored in this area, despite its development is fundamental to explain and model possible climate alterations in the near future.
研究兴趣
论文共 40 篇作者统计合作学者相似作者
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Chemical Geology (2023): 121652-121652
Nicolás Villacieros‐Robineau,Diana Zúñiga, Beatriz Barreiro,Fernando Alonso Pérez, Francisco de la Granda Grandoso, M. Froján,Curtis A. Collins,Eric D. Barton, Carmen G. Castro
openalex(2020)
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Journal of geophysical research Oceansno. 12 (2019): 9531-9552
Journal of analytical and applied pyrolysis (2019): 114-122
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作者统计
#Papers: 40
#Citation: 650
H-Index: 17
G-Index: 24
Sociability: 5
Diversity: 2
Activity: 2
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