Banca de DEFESA: FELIPE SOUZA DOS SANTOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FELIPE SOUZA DOS SANTOS
DATE: 28/05/2021
TIME: 14:30
LOCAL: VIDEOCONFERÊNCIA
TITLE:

EVALUATION OF CLIMATE VARIABILITY OVER THE NORTHEAST REGION OF BRAZIL SIMULATED BY THE GLOBAL BAM MODEL

KEY WORDS:

Interannual variability, Model BAM, Reanalysis, Northeast of Brazil.

PAGES: 54
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Meteorologia
SUMMARY:

The Brazilian Northeast (NEB) suffers from the irregular distribution of rainfall throughout its territory. This variability is linked to the various meteorological systems responsible for the mechanisms that regulate rain and air temperature, as well as causing major socioeconomic problems for the population. Thus, the objective of the present study is to evaluate the performance of the Brazilian Global Atmospheric Model (BAM - Brasilian atmospheric Model) in simulating the variability of the regional climate in the NEB and the associated atmospheric circulation characteristics during the southern summers of 2011 (La Niña), 2014 (Normal) and 2016 (El Niño). The simulations of the BAM model were obtained from the Weather Forecast and Climate Studies Center / National Institute for Space Research (CPTEC / INPE). The analyzes show that BAM was able to simulate the patterns of atmospheric circulation and air temperature in the low and high levels of the atmosphere over the NEB and the interannual variability during the aforementioned summers, when compared to the reanalysis of ERA5 and MERRA2, as well as for precipitation, however compared to the GPCP analyzes. The best skills were observed for the air temperature field in all investigated areas, relative to the precipitation field, during the three southern summers. However, over the region comprised by a large part of Bahia and portions south of Piauí and east of Tocantins (NE2 region), both the variable precipitation and air temperature showed the highest values of BIAS and RMSE.

BANKING MEMBERS:
Externo à Instituição - SILVIO NILO FIGUEROA RIVERO
Externo à Instituição - DIRCEU LUÍS HERDIES - USP
Interno - 1537309 - FABRICIO DANIEL DOS SANTOS SILVA
Interno - 2347007 - HELBER BARROS GOMES
Presidente - 4421297 - HELIOFABIO BARROS GOMES