Nonlinear interaction of gravity and acoustic waves

Autor: André Seiji Wakate Teruya, Carlos Frederico Mendonça Raupp

Publikováno v: Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 72, Iss 1, Pp 1-17 (2020)

Here we have investigated the possibility of an inertio-acoustic wave-mode to be unstable with regards to gravity mode perturbations through non-linear triad interactions in the context of a shallow non-hydrostatic model. We have considered highly tr

Externí odkaz: https://doaj.org/article/e6b8f7fe3ca6452589ef063d29aa137a

Inference of the topology of geomagnetic field multipole interactions

Autor: Breno Raphaldini, P. L. Silva-Dias, Daniel Y. Takahashi, Carlos Frederico Mendonça Raupp, André Seiji Teruya

Publikováno v: The European Physical Journal Special Topics. 230:2999-3007

The geomagnetic field is generated by a dynamo process in the Earth’s core and is characterized by a predominant dipole component that has been steadily decreasing in the last few centuries. The physical drivers behind the fluctuations of the geoma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fa00393d076738d3d19f6930b7f1a014
https://doi.org/10.1140/epjs/s11734-021-00201-1

Linear and Weakly Nonlinear Energetics of Global Nonhydrostatic Normal Modes

Autor: Pedro Leite da Silva Dias, Carlos Frederico Mendonça Raupp, André Seiji Teruya

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Here the theory of global nonhydrostatic normal modes has been further developed with the analysis of both linear and weakly nonlinear energetics of inertia–acoustic (IA) and inertia–gravity (IG) modes. These energetics are analyzed in the contex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3862ee165910ea871479103e89833bc6
https://doi.org/10.1175/jas-d-19-0131.1

Topography-induced locking of drifting Rossby-Haurwitz waves

Autor: David Ciro, Carlos Frederico Mendonça Raupp, Breno Raphaldini

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Atmospheric blockings are persistent large-scale climate patterns that lock in a geographic position for days and even weeks. In principle, blockings might involve a large number of waves interacting non-linearly, and a conclusive description for the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aa833f336165ff5a318f540ae699c74

Nonlinear MHD Rossby wave interactions and persistent geomagnetic field structures

Autor: Breno Raphaldini, Carlos Frederico Mendonça Raupp

Publikováno v: Proc Math Phys Eng Sci
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The geomagnetic field presents several stationary features that are thought to be linked to inhomogeneities at the core–mantle boundary. Particularly important stationary structures of the geomagnetic field are the flux lobes, which appear in pairs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78f70988ff7abfcd812fdc985faac81d