Inicio Eventos - Instituto de Ciencias de la Atmósfera y Cambio Climático Deep convection evolution, feedback effects, and natural hazards.

Deep convection evolution, feedback effects, and natural hazards.

Name: Deep convection evolution, feedback effects, and natural hazards.
Start: 2023-10-25
End: 2023-10-25

Miércoles 25 de Octubre de 2023 – 12:00 PM

IMPARTE: Dr. Steven Koch ┃ University of Arizona

RESUMEN

Basic characteristics of the modes of naturally occurring deep, moist convection in the Earth’s atmosphere are reviewed using a combination of observations and schematic models. Emphasis is placed on the governing role of vertical wind shear in determining the dominant modalities. The structure and dynamics of single-cell, multi-cell, and supercell storms, mesoscale convective systems, squall lines, bow echoes and derechos, mesoscale convective complexes, mesoscale convective vortices, and the natural hazards associated with each convection type and their temporal evolution will be described. The upscale feedback effects of organized deep convection on upper-tropospheric mass and momentum fields in a baroclinic environment, and the creation of dynamical imbalances leading to the generation of ducted inertia-gravity waves will also be discussed. Time permitting, a summary of a proposed multiscale study of the North American Monsoon called CONVECT will be shared with the
audience. For those interested, I will present a short briefing after the seminar time that summarizes the roles and major achievements of NOAA’s National Severe Storms Laboratory.