Banca de DEFESA: RENATA BARROS VASCONCELOS LEIRIAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RENATA BARROS VASCONCELOS LEIRIAS
DATE: 27/02/2023
TIME: 14:30
LOCAL: videoconferência
TITLE:

THE IMPACT OF MESOSCALE CONVECTIVE COMPLEXES ON

AIRCRAFT AND CASE STUDY ON 10/31/2018.

KEY WORDS:

Aviation incident/accident, mesoscale convective complexes, airplane, cyclogeneses, low-level jet stream, cold front, jet stream.

PAGES: 115
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Meteorologia
SUMMARY:

Some meteorological phenomena in South America develop quickly and take on large dimensions. These phenomena cause disasters for aviation, such as incidents and accidents. Mesoscale convective complexes (MCCs) forced a commercial airplane into an emergency landing at Ezeiza International Airport in Buenos Aires (Argentina) in October 2018. The airplane took off from São Paulo (Brazil) to Santiago (Chile) and had to alternate to Ezeiza after encountering unanticipated agglomerations of MCCs along the flight route; its structure was seriously damaged, which affected the safety of the flight. A synoptic and thermodynamic analysis of the atmosphere, prior to the event, was made based on GOES16 infrared satellite data, radiosonde data, maps of several variables such as stream lines, temperature advection, surface synoptic maps and layer thickness from CPTEC/INPE and NCEP reanalysis data. The main observed processes that influenced the formation and development of conglomerates of MCCs were the following: (1) the cyclogenesis of a baroclinic cyclone on the cold front; (2) the coupling of subtropical and polar jet streams; (3) the advection of warm and humid air along a low-level jet stream. Recommendations for meteorologists in weather forecasting and for aviators in flight safety were prepared.

BANKING MEMBERS:
Externo(a) à Instituição - EDSON CABRAL
Interno(a) - 4421297 - HELIOFABIO BARROS GOMES
Presidente - 1099304 - NATALIA FEDOROVA