Zobrazeno 1 - 10
of 487
pro vyhledávání: '"K, Dewar"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 20, Pp n/a-n/a (2024)
Abstract The Gulf Stream's (GS) impact on the marine boundary layer (MBL) is well established, yet the mechanisms and timescales through which it affects the upper‐troposphere and contributes to precipitation are debatable. Using a high‐resolutio
Externí odkaz:
https://doaj.org/article/a44795fe70214979b30f62528a5b9542
Publikováno v:
Endangered Species Research, Vol 51, Pp 161-172 (2023)
Many seabird populations are declining, with fisheries bycatch as one of the greatest threats. Explicit risk criteria should be used to identify whether bycatch is a problem for particular species and fisheries, but these are often poorly defined. A
Externí odkaz:
https://doaj.org/article/c00992049c3c4e20939bcc7b5f7a367a
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 15, Iss 10, Pp n/a-n/a (2023)
Abstract Parameterization of mesoscale eddies in coarse resolution ocean models is necessary to include the effect of eddies on the large‐scale oceanic circulation. We propose to use a multiple‐scale Quasi‐Geostrophic (MSQG) model to capture th
Externí odkaz:
https://doaj.org/article/febc2e05cdc04ddda96f4302faa2aedc
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 7449-7469 (2022)
This paper contains a description of recent changes to the formulation and numerical implementation of the Quasi-Geostrophic Coupled Model (Q-GCM), which constitute a major update of the previous version of the model (Hogg et al., 2014). The Q-GCM mo
Externí odkaz:
https://doaj.org/article/c98f843535e04e7d93e5a2752de9af9e
Autor:
T. Uchida, J. Le Sommer, C. Stern, R. P. Abernathey, C. Holdgraf, A. Albert, L. Brodeau, E. P. Chassignet, X. Xu, J. Gula, G. Roullet, N. Koldunov, S. Danilov, Q. Wang, D. Menemenlis, C. Bricaud, B. K. Arbic, J. F. Shriver, F. Qiao, B. Xiao, A. Biastoch, R. Schubert, B. Fox-Kemper, W. K. Dewar, A. Wallcraft
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 5829-5856 (2022)
With the increase in computational power, ocean models with kilometer-scale resolution have emerged over the last decade. These models have been used for quantifying the energetic exchanges between spatial scales, informing the design of eddy paramet
Externí odkaz:
https://doaj.org/article/410e7dca56c44863b19f8edf164d36e3
Autor:
Takaya Uchida, Quentin Jamet, William K. Dewar, Julien Le Sommer, Thierry Penduff, Dhruv Balwada
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 14, Iss 5, Pp n/a-n/a (2022)
Abstract The thickness‐weighted average (TWA) framework, which treats the residual‐mean flow as the prognostic variable, provides a clear theoretical formulation of the eddy feedback onto the residual‐mean flow. The averaging operator involved
Externí odkaz:
https://doaj.org/article/ea4d967406d7423d9b15703a182333bc
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 14, Iss 4, Pp n/a-n/a (2022)
Abstract The “eddying” ocean, recognized for several decades, has been the focus of much observational and theoretical research. We here describe a generalization for the analysis of eddy energy, based on the use of ensembles, that addresses two
Externí odkaz:
https://doaj.org/article/4009380b813c4c74bcdd60c4c92f0fa3
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 13, Iss 4, Pp n/a-n/a (2021)
Abstract The flow of energy in the wind‐driven circulation is examined in a combined theoretical and numerical study. Based on a multiple‐scale analysis, we find the mesoscale field in the ocean interior is strongly affected by, but does not feed
Externí odkaz:
https://doaj.org/article/3d76797336314460b1dbeb553e155b0e
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 12, Iss 12, Pp n/a-n/a (2020)
Abstract An important characteristic of geophysically turbulent flows is the transfer of energy between scales. Balanced flows pass energy from smaller to larger scales as part of the well‐known upscale cascade, while submesoscale and smaller scale
Externí odkaz:
https://doaj.org/article/c55b3c825d1e48298bd1cf075b23d678
Autor:
Takaya Uchida, Quentin Jamet, Andrew C. Poje, Nico Wienders, William K. Dewar, Bruno Deremble
Publikováno v:
Journal Of Advances In Modeling Earth Systems (1942-2466) (American Geophysical Union), 2023-03, Vol. 15, N. 3, P. e2022MS003399 (14p.)
A wavelet-based method is re-introduced in an oceanographic and spectral context to estimate wavenumber spectrum and spectral flux of kinetic energy and enstrophy. We apply this to a numerical simulation of idealized, doubly periodic quasi-geostrophi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62e5b4205f08299077fedd18371be311
https://archimer.ifremer.fr/doc/00828/94003/
https://archimer.ifremer.fr/doc/00828/94003/
