Artículo
Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation
Autor/es | Wiedmann, I.
Ceballos Romero, Elena Villa Alfageme, María Renner, A.H.H. Dybwad, C. Van der Jagt, H. Svensen, C. Assmy, P. Wiktor, J.M. Tatarek, A. Różańska-Pluta, M. Iversen, M.H. |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2020 |
Fecha de depósito | 2023-04-11 |
Publicado en |
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Resumen | he attenuation coefficient bis one of the most common ways to describe how strong the carbonflux is attenuated throughout the water column. Therefore, bis an essential input variable in many carbonflux and climate models. ... he attenuation coefficient bis one of the most common ways to describe how strong the carbonflux is attenuated throughout the water column. Therefore, bis an essential input variable in many carbonflux and climate models. Marsay et al. (2015, https://doi.org/10.1073/pnas.1415311112) proposed that the median surface water temperature (0–500 m) may be a predictor of b, but our observations from Arctic waters challenge this hypothesis. We found a highly variable attenuation coefficient (b= 0.43–1.84) in cold Arctic waters (<4.1 °C). Accordingly, we suggest that water temperature is not a globally valid predictor of the attenuation coefficient. We advocate instead that the phytoplankton composition and especially the relative abundance of diatoms can be used to parametrize the carbon flux attenuation in local and global carbonflux models. |
Cita | Wiedmann, I., Ceballos Romero, E., Villa Alfageme, M., Renner, A.H.H., Dybwad, C., Van der Jagt, H.,...,Iversen, M.H. (2020). Arctic observations identify phytoplankton community composition as driver of carbon flux attenuation. Geophysical Research Letters, 47(14) (e2020GL087465). |
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