Banca de DEFESA: EMERSON DAMASCENO DE OLIVEIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : EMERSON DAMASCENO DE OLIVEIRA
DATA : 22/02/2019
HORA: 09:00
LOCAL: Auditório do CCET
TÍTULO:

SUPERFICIAL AIR TEMPERATURE SIMULATIONS BASED ON THE EFFECTS OF THE GALACTIC COSMIC RAYS THEORY ON THE GLOBAL RADIACTIVE BALANCE

PALAVRAS-CHAVES:

Air temperature, GCR, Clouds coverage, GREB-GCR

PÁGINAS: 89
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Meteorologia
ESPECIALIDADE: Climatologia
RESUMO:

This research had as main proposal the establishment and simulation of the Galactic Cosmic Rays (GCR) role on the global energy balance in the Earth’s atmosphere, considering the performance of carbon dioxide (CO₂) individually and together with the GCR fluxes. In this way, a modified version of the Global Resolved Energy Balance (GREB) climate model was developed, making it possible to simulate new scenarios. The new model is being called GREB-GCR. The results suggest that the joint action of GCR and CO₂, Experiment 20 (EXP20), presented a better representation on the surface temperature when compared to the exclusive action of CO₂, Experiment 12 (EXP12). This fact is mainly evidenced on the oceans. It was identified from the root mean square error (RMSE) that the EXP20 presented a spatially reduction of the error on the tropical region while compared to the EXP12. However, it is noteworthy that in both experiments the GREB-GCR model presented more significant errors on high altitude and polar regions. The calculated surface fields indicate that the GREB-GCR model can better simulate the surface air temperature considering anthropogenic (CO₂) and natural (GCR) forcings. The model also points to a recent weakening of the global warming trend of recent decades, which is influenced by the GCR’s fluxes.

MEMBROS DA BANCA:
Presidente - 1808127 - JOSE HENRIQUE FERNANDEZ
Interno - 1858120 - DAVID MENDES
Interna - 792.031.834-34 - MARIA HELENA CONSTANTINO SPYRIDES - UFRN
Interno - 1164414 - WEBER ANDRADE GONCALVES
Externo à Instituição - MARIA LUCIENE DIAS DE MELO - UFAL
Externa à Instituição - MARIA PAULETE PEREIRA MARTINS - INPE