Výsledky vyhledávání - "Florian Sévellec"

Akademický článek

Advection surface-flux balance controls the seasonal steric sea level amplitude

Autor: Antoine Hochet, William Llovel, Thierry Huck, Florian Sévellec

Publikováno v: Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)

Abstract Along with the mean sea level rise due to climate change, the sea level exhibits natural variations at a large number of different time scales. One of the most important is the one linked with the seasonal cycle. In the Northern Hemisphere w

Externí odkaz: https://doaj.org/article/dfb578bae9bf44a3b4e66b8d1f7ab690

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Akademický článek

Time of Emergence for Altimetry‐Based Significant Wave Height Changes in the North Atlantic

Autor: Antoine Hochet, Guillaume Dodet, Florian Sévellec, Marie‐Noëlle Bouin, Anindita Patra, Fabrice Ardhuin

Publikováno v: Geophysical Research Letters, Vol 50, Iss 9, Pp n/a-n/a (2023)

Abstract Satellite observations of significant wave height (Hs) have recently reached 30 years of continuous record. Is this length sufficient to detect the effect of anthropogenically forced climate change on wave height trends? Wave height decadal

Externí odkaz: https://doaj.org/article/26f02c0105e6487b99f549998a991275

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Akademický článek

A novel probabilistic forecast system predicting anomalously warm 2018-2022 reinforcing the long-term global warming trend

Autor: Florian Sévellec, Sybren S. Drijfhout

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-12 (2018)

Accurate near-term predictions of global temperatures are required to determine some of the key impacts of climate change. Here the authors develop a novel probabilistic forecast system that shows anomalously warm temperatures for the next years with

Externí odkaz: https://doaj.org/article/18248aaa08074e3c8232a3e6d5eb09c6

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Data-driven reconstruction of partially observed dynamical systems

Autor: Pierre Tandeo, Pierre Ailliot, Florian Sévellec

Publikováno v: Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics, 2023, 30 (2), pp.129-137. ⟨10.5194/npg-30-129-2023⟩
Nonlinear Processes In Geophysics (1023-5809) (Copernicus GmbH), 2023-06, Vol. 30, N. 2, P. 129-137
eISSN

The state of the atmosphere, or of the ocean, cannot be exhaustively observed. Crucial parts might remain out of reach of proper monitoring. Also, defining the exact set of equations driving the atmosphere and ocean is virtually impossible because of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9823ed8ec01fab247f1ddf1d53560c47
https://imt-atlantique.hal.science/hal-04131312/document

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Sources and Sinks of Interannual Steric Sea Level Variability

Autor: Antoine Hochet, William Llovel, Florian Sévellec, Thierry Huck

Publikováno v: Journal of Geophysical Research. Oceans
Journal of Geophysical Research. Oceans, 2023, 128 (4), pp.e2022JC019335. ⟨10.1029/2022JC019335⟩

It is now well established that sea level rise is not uniform and presents large deviations from its global mean trend. Indeed, some regions such as the western Pacific ocean or the Indian ocean experience a linear rise 3 times larger than the global

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e587285820145054c2dc6a36fc5759ee
https://doi.org/10.1029/2022jc019335

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Analog Data Assimilation for the Selection of Suitable General Circulation Models

Autor: Juan Ruiz, Pierre Ailliot, Thi Tuyet Trang Chau, Pierre Le Bras, Valérie Monbet, Florian Sévellec, Pierre Tandeo

Publikováno v: Geoscientific Model Development
Geoscientific Model Development, 2022, 15, pp.7203-7220. ⟨10.5194/gmd-15-7203-2022⟩
Geoscientific Model Development (1991-959X) (Copernicus Gesellschaft Mbh), 2022-09, Vol. 15, N. 18, P. 7203-7220
Geoscientific Model Development, European Geosciences Union, 2022, 15, pp.7203-7220. ⟨10.5194/gmd-15-7203-2022⟩

Data assimilation is a relevant framework to merge a dynamical model with noisy observations. When various models are in competition, the question is to find the model that best matches the observations. This matching can be measured by using the mod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7186bf5f480e32396d84057e0e4b276
https://imt-atlantique.hal.science/hal-03685531/file/ruiz_2022.pdf

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Data-driven data assimilation to better characterize both accuracy and uncertainty of climate projections: a case study with an idealized chaotic AMOC model

Autor: Pierre Le Bras, Pierre Ailliot, Noémie Le Carrer, Juan Ruiz, Florian Sévellec, Pierre Tandeo

The multi-model ensemble approach is applied in geosciences to provide better predictions or projections, by weighting the outputs from different dynamical models. Basically, the weighting procedure relies on the choice of a performance metric to mea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd71af172935c9e5bcc86b87cecb4cf3
https://doi.org/10.5194/egusphere-egu22-8578

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Energy transfers between multidecadal and turbulent variability

Autor: Olivier Arzel, Florian Sévellec, Antoine Hochet, Alain Colin de Verdiére, Thierry Huck

Publikováno v: Journal Of Climate (0894-8755) (American Meteorological Society), 2022-02, Vol. 35, N. 4, P. 1157-1178
Journal of Climate
Journal of Climate, In press, 35 (4), pp.1157-1178. ⟨10.1175/JCLI-D-21-0136.1⟩
Journal of Climate, American Meteorological Society, In press, ⟨10.1175/JCLI-D-21-0136.1⟩

One of the proposed mechanisms to explain the multidecadal variability observed in sea surface temperature of the North Atlantic Ocean consists of a large-scale low-frequency internal mode spontaneously developing because of the large-scale baroclini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a85f6c0d9697ae38dedc8abe85b3a2d1
https://archimer.ifremer.fr/doc/00732/84392/

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AMOC Trends From 1850 to 2100 At Interannual To Multi-Decadal Time Scales Corroborated By Changes In Salinity Budget

Autor: Delphine Lobelle, Florian Sévellec, Claudie Beaulieu, Valerie Livina, Eleanor Frajka-Williams

Publikováno v: Preprint (Research Square Platform LLC), 2022-01, N. Version 1, P. 32p.

The Atlantic Meridional Overturning Circulation (AMOC) is a key player in the global coupled ocean-atmosphere climate system. To characterise the potential of an AMOC slowdown, a past and future trend probability analysis is applied using 16 models f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a51aa07baead65138f07df834f486ef
https://doi.org/10.21203/rs.3.rs-1231837/v1

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The active and passive roles of the ocean in generating basin‐scale heat content variability

Autor: Florian Sévellec, Dafydd Stephenson

Publikováno v: Geophysical Research Letters (0094-8276) (American Geophysical Union (AGU)), 2021-10, Vol. 48, N. 19, P. e2020GL091874 (11p.)
Geophysical Research Letters
Geophysical Research Letters, 2021, 48 (19), ⟨10.1029/2020GL091874⟩
Geophysical Research Letters, American Geophysical Union, 2021, 48 (19), ⟨10.1029/2020GL091874⟩

The role of ocean circulation in transforming surface forcing into interannual-to-multidecadal oceanic variability is an area of ongoing debate. Here, a novel method, establishing exact causal links, is used to quantitatively determine the role of oc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25bde8cfd7e834a2c7ddf856c5f07989
https://archimer.ifremer.fr/doc/00722/83380/

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