Zobrazeno 1 - 10
of 85
pro vyhledávání: '"J. Jouanno"'
Autor:
P. Brandt, G. Alory, F. M. Awo, M. Dengler, S. Djakouré, R. A. Imbol Koungue, J. Jouanno, M. Körner, M. Roch, M. Rouault
Publikováno v:
Ocean Science, Vol 19, Pp 581-601 (2023)
In this paper, we review observational and modelling results on the upwelling in the tropical Atlantic between 10∘ N and 20∘ S. We focus on the physical processes that drive the seasonal variability of surface cooling and the upward nutrient flux
Externí odkaz:
https://doaj.org/article/a1e66bb97fb147b7b75d34182f6ded80
Publikováno v:
Ocean Science, Vol 19, Pp 535-558 (2023)
In this study, we use a joint observation–model approach to investigate the mixed-layer heat and salt annual mean as well as seasonal budgets in the eastern tropical Atlantic. The regional PREFCLIM (PREFACE Climatology) observational climatology pr
Externí odkaz:
https://doaj.org/article/2527a34be7a94432a2557396dcc2151b
Publikováno v:
Earth System Dynamics, Vol 14, Pp 399-412 (2023)
The phytoplankton–light feedback (PLF) describes the interaction between phytoplankton biomass and the downwelling shortwave radiation entering the ocean. The PLF allows the simulation of differential heating across the ocean water column as a func
Externí odkaz:
https://doaj.org/article/4af84022a69f4bc68e71608ef8fd981c
Publikováno v:
Ocean Science, Vol 18, Pp 1591-1618 (2022)
The Amazon shelf break is a key region for internal tide (IT) generation. It also shows a large seasonal variation in circulation and associated stratification. This study, based on a high-resolution model (1/36∘) explicitly forced by tide, aims to
Externí odkaz:
https://doaj.org/article/e2bdb3473dda4a2aa6367f0690974da0
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
To highlight the processes by which the Niger River warms the coastal waters in the eastern part of the northern Gulf of Guinea upwelling, two simulations of the NEMO model at high resolution were used over the period 2010 - 2017. The first simulatio
Externí odkaz:
https://doaj.org/article/600a9f37f7fa42f6a973314450bf0601
Autor:
J. Jouanno, R. Benshila, L. Berline, A. Soulié, M.-H. Radenac, G. Morvan, F. Diaz, J. Sheinbaum, C. Chevalier, T. Thibaut, T. Changeux, F. Menard, S. Berthet, O. Aumont, C. Ethé, P. Nabat, M. Mallet
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 4069-4086 (2021)
The tropical Atlantic has been facing a massive proliferation of Sargassum since 2011, with severe environmental and socioeconomic impacts. The development of large-scale modeling of Sargassum transport and physiology is essential to clarify the link
Externí odkaz:
https://doaj.org/article/5f81fa5a432245eb91b6628a47f902b7
Publikováno v:
Biogeosciences, Vol 18, Pp 4281-4303 (2021)
Surface chlorophyll concentrations inferred from satellite images suggest a strong influence of the mesoscale activity on biogeochemical variability within the oligotrophic regions of the Gulf of Mexico (GoM). More specifically, long-living anticyclo
Externí odkaz:
https://doaj.org/article/14c5cc7465c64b06ad67e450b579532e
Autor:
J. Jouanno, X. Capet
Publikováno v:
Ocean Science, Vol 16, Pp 1207-1223 (2020)
The dynamical balance of the Antarctic Circumpolar Current and its implications on the functioning of the world ocean are not fully understood and poorly represented in global circulation models. In this study, the sensitivities of an idealized South
Externí odkaz:
https://doaj.org/article/d53b0cd7623348b1808767f26fda31d0
Publikováno v:
Biogeosciences, Vol 17, Pp 529-545 (2020)
Ocean color observations show semiannual variations in chlorophyll in the Atlantic cold tongue with a main bloom in boreal summer and a secondary bloom in December. In this study, ocean color and in situ measurements and a coupled physical–biogeoch
Externí odkaz:
https://doaj.org/article/b3f7ecb77a074ecfb9f87f7eabeac868
Publikováno v:
Ocean Science, Vol 14, Pp 971-997 (2018)
The West African seaboard is one of the upwelling sectors that has received the least attention, and in situ observations relevant to its dynamics are particularly scarce. The current system in this sector is not well known and understood, e.g., i
Externí odkaz:
https://doaj.org/article/eb83a44a1ae04e21b25f6450ec3b5ea7