Banca de DEFESA: EDUARDO ALMEIDA DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : EDUARDO ALMEIDA DA SILVA
DATE: 27/02/2023
TIME: 14:00
LOCAL: Plataforma google meet
TITLE:

Cloud Microphysics of precipitating clouds on the east coast of the Norheast of Brazil

 

KEY WORDS:

2ACLIM, 2A25, TRMM, extremes, cloud

PAGES: 89
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Meteorologia
SPECIALTY: Sensoriamento Remoto da Atmosfera
SUMMARY:

From this research, it is proposed to characterize the microphysical parameters of clouds that generate extreme precipitation events over the East Coast of the Northeast Region of Brazil (CLNEB), by seasonal period, between the years 1998 to 2014. The objective was to characterize the parameters: Integrated Rainwater Content – RWP (kg/m²), Integrated Ice Content – IWP (kg/m²), Surface Precipitation Rate – SP (mm/h), derived from the 2ACLIM product (Microwave Imager – MI sensor), Freezing Level Height – FH (m), Precipitation Rate (mm/h) and Rainfall Type, from the 2APR product (Precipitation Radar – PR sensor), data from the Tropical Rainfall satellite Measuring Mission (TRMM). To analyze these microphysical parameters, statistical methods and measurements were used, such as mean, standard deviation, analysis of variance (ANOVA) and non-parametric tests by Kruskal-Wallis and Dunn. Finally, a conceptual model was presented to characterize the microphysics of clouds that generate extreme precipitation in this locality. The main results showed that the seasonal periods from December to February and from March to May, in both products, presented higher amounts of estimated rainfall for the clouds that generate extreme precipitation over the CLNEB. The height of the freezing level ranged from 4400 to 5150 meters in relation to the altitude of the 0º C isotherm. However, it was found that there was no difference between the pairs of averages for this parameter between the seasonal periods from June to August and from September to November on CLNEB (p-value > 0.05). It was observed that the extreme precipitation of the CLNEB comes from severe convective clouds (71.36%) and stratiform clouds (28.64%), both cold clouds.

COMMITTEE MEMBERS:
Presidente - 1164414 - WEBER ANDRADE GONCALVES
Interna - ***.212.764-** - DANIELE TÔRRES RODRIGUES - UFPI
Interno - 1858120 - DAVID MENDES
Interno - 3217859 - PEDRO RODRIGUES MUTTI
Externa à Instituição - CLÊNIA RODRIGUES ALCÂNTARA - UFCG