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Influence of moist convection on the geostrophic adjustment

Grant number: 20/14162-6
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): April 01, 2021
Effective date (End): March 31, 2023
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Meteorology
Principal researcher:Pedro Leite da Silva Dias
Grantee:André Seiji Wakate Teruya
Home Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:15/50122-0 - Dynamic phenomena in complex networks: basics and applications, AP.TEM

Abstract

This project aims to analyze the influence of moist convection on geostrophic adjustment on the equatorial region. The geostrophic adjustment will be examined through numerical experiments with a pseudo-spectral model that couples a shallow-water model on the equatorial $\beta$-plane with a vertically averaged moisture equation. We will also explore the moisture's impact in the non-linear wave-wave interactions among Rossby, Kelvin, Mixed Rossby-gravity, and inertia-gravity waves. This research will provide a better understanding of the non-linear interaction between the normal modes of oscillation in the atmosphere and moisture during the geostrophic adjustment in the equatorial region. The dynamical nature of these non-linear interactions is essential to expand our current understanding of the intraseasonal atmospheric variability. (AU)

News published in Agência FAPESP Newsletter about the scholarship: