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)