GROUP OF EXPERIMENTAL STUDIES ON MATHEMATICAL MODELING OF THE ATMOSPHERE AND SURFACE PROCESSES
GEMMAS-IGEO-UFRJ
NEWS & EVENTS
2025
Title Date Local
PhD Dissertation Defense: "Numerical Modeling of Heavy Rainfall in the Metropolitan Area of São Paulo:
Sensitivity to Physical Parameterizations and Urban Characteristics"

Candidate: Geraldo D. Gomes
03-Oct-2025 at 09:00



Room P 209
Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG)
Universidade de São Paulo
São Paulo, SP, Brasil.
2024
Title Date Local
Poster Presentation: "Extreme weather events in Brazilian megacities"

Authors: Ana Nunes, Rosmeri da Rocha, Geraldo Gomes, Beatriz Miranda, Igor de Azeredo,
Catherine Ivanovich, Adam H. Sobel, and Suzana J. Camargo
13-Dec-2024/Atmospheric Sciences/Afternoon session/City and Climate Extremes:
Scientific and Community Perspectives


American Geophysical Union (AGU) Annual Meeting-AGU24
Washington, D.C., USA.


Poster Presentation: "Effects of local climate zone simulations in microphysics and PBL
in the Megacity of São Paulo: Impacts on an extreme rainfall event"

Authors: Geraldo D. Gomes, Ana Nunes, and Rosmeri P. Rocha
4-Sep-2024/Poster session 2



VIII Convection Permitting Climate Modeling Workshop
Fort Collins, CO, USA.


Poster Presentation: "Avaliação de períodos secos na Região Sudeste do Brasil usando
uma reconstrução numérica de 20 anos do clima regional"

Authors: Ana L. S. Perry, Camila V. dos Santos, and Ana M. B. Nunes
19–23-Aug-2024/Modelagem Numérica Multiescala e Assimilação de Dados



Conferência Pan-Americana de Meteorologia 2924 (CPAM 2024)
Simpósio em Clima, Água, Energia e Alimentos
São Paulo, SP, Brasil.

Poster Presentation: "Implementação de zonas climáticas locais para a megacidade de São Paulo e o
impacto na simulação de um evento extremo de chuva"

Authors: Geraldo D. Gomes, Rosmeri P. Rocha, and Ana M. B. Nunes
19–23-Aug-2024/Regionalização Climática: Técnicas e Aplicações no Clima
Presente e Cenários Climáticos Futuros


Conferência Pan-Americana de Meteorologia 2024 (CPAM 2024)
Simpósio em Clima, Água, Energia e Alimentos
São Paulo, SP, Brasil.

Poster Presentation: "Avaliação de um evento de precipitação extrema na cidade do Rio de Janeiro
através de observações e simulação numérica"

Authors: Igor N. S. de Azeredo, Beatriz P. Miranda, and Ana M. B. Nunes
19–23-Aug-2024/Mudanças Climáticas: Passado, Presente e Futuro



Conferência Pan-Americana de Meteorologia 2024 (CPAM 2024)
Simpósio em Clima, Água, Energia e Alimentos
São Paulo, SP, Brasil.

2023
Title Date Local
Poster Presentation: "Revisiting the 2015-2016 Amazon Drought"

Authors: Ana Nunes, Isabella E. Barros, Igor Azeredo, and Camila Veiga
13-Dec-2023/Atmospheric Sciences/Evening session/Understanding land-atmosphere
interactions through the lens of surface fluxes and other drivers

American Geophysical Union (AGU) Annual Meeting-AGU23
San Francisco, CA, USA.

Poster Presentation: "O uso de um sistema de modelagem regional na simulação das secas de
2014 e 2015 na bacia do Rio Paraíba do Sul"

Authors: Igor N. S. de Azeredo, Ana L. Perry, Camila Veiga, and Ana Nunes
7–10-Nov-2023/Desastres Naturais e Vulnerabilidade dos Centros Urbanos Brasileiros



X Simpósio Internacional de Climatologia (X SIC)
Jõao Pessoa, PB, Brasil.


Master's Thesis Defense: "The impact of static variational data assimilation on the numerical prediction
on convection scale of a severe event in the Metropolitan Region of Rio de Janeiro"

Candidate: Raphael Fontenelle Rabello
30-Aug-2023 at 09:00



Virtual Room
Google Meet


2022
Title Date Local
Oral Presentation: "O impacto da assimilação de precipitação na simulação do ciclone subtropical Eçaí"

Authors: Beatriz P. Miranda and Ana M. B. Nunes
29-Nov-2-Dec-2022/Modelagem Atmosférica e Previsão Climatológica


XXII Congresso Brasileiro de Meteorologia 2022 (CBMET 2022)
Bauru, SP, Brasil.

Master's Thesis Defense: "South American Monsoon System: Observed Changes and
Hydro-climate Projections"

Candidate: Camila Camarinha
22-Sep-2022 at 14:00



Virtual Room
Google Meet


2021
Title Date Local
Poster Presentation: "Advances in the downscaling of extreme hydro-events in
South America"

Authors: Ana M. B. Nunes, Isabella E. Barros, Rafael A. G. Pereira, and Camila Camarinha
16-Sep-2021/Reanalysis Session



The First Joint WCRP-WWRP Symposium on
Data Assimilation and Reanalysis
Virtual Meeting.

2019
Title Date Local
Poster Presentation: "A Closer Look at the Most Recent Drought Registered in
Northeast Brazil"

Authors: Isabella E. Barros, Ana M. B. Nunes, and Geraldo D. Gomes
13-Dec-2019/Hydrology/Morning session/Advances in Tropical Hydrology and
Climatology: Observations, Modeling, and Sustainable Water Management


American Geophysical Union (AGU) Fall Meeting
San Francisco, CA, USA.


Master's Thesis Defense: "An assessment of changes in precipitation and the impact on the
moisture fluxes over the Amazon and La Plata River basins under a changing climate"

Candidate: Geraldo D. Gomes
18-Oct-2019 at 08:30



Auditório Novos Ventos - UFRJ
Departamento de Meteorologia, Bloco H2
Ilha do Fundão, Rio de Janeiro, RJ, Brasil.

2018
Title Date Local
Meeting Session: "Advances in Integrated Observations, Modeling, and
Predictions for Weather, Climate, and Impact Assessments I"

Session Conveners: Ana Nunes (UFRJ), Valeriy Ivanov (University of Michigan),
and Richard Lawford (Morgan State University)
Outsdanting Student Presentation Awards (OSPA) Liaison: Ana Nunes (UFRJ)
12-Dec-2018/Hydrology/Afternoon session/H34A/Oral presentations





American Geophysical Union (AGU) Fall Meeting
Washington, D.C., USA.




Meeting Session: "Advances in Integrated Observations, Modeling, and
Predictions for Weather, Climate, and Impact Assessments II"

Session Conveners: Ana Nunes (UFRJ), Valeriy Ivanov (University of Michigan), and
Richard Lawford (Morgan State University)
Outsdanting Student Presentation Awards (OSPA) Liaison: Ana Nunes (UFRJ)
13-Dec-2018/Hydrology/Morning session/H41I/Poster presentations





American Geophysical Union (AGU) Fall Meeting
Washington, D.C., USA.




Poster Presentation: "Assessing the impact of changes in green vegetation fraction on simulations of
land surface variables in northeastern Brazil"

Authors: Iago A. e Silva, Ana Nunes, Fausto Machado-Silva, Isabella E. Barros, and Leonardo Peres
13-Dec-2018/Hydrology/Morning session/Advances in Integrated Observations, Modeling, and
Predictions for Weather, Climate, and Impact Assessments
Posters

American Geophysical Union (AGU) Fall Meeting
Washington, D.C., USA.


Master's Thesis Defense: "The impact of the green-vegetation fraction on the modeling of
the surface processes in the Amazonia"

Candidate: Iago Alavarenga e Silva
25-Jun-2018 at 09:00



Multimedia Room - UFRJ
Dept of Meteorology, G1-04
Ilha do Fundão, Rio de Janeiro, RJ, Brasil.

2017
Title Date Local
Meeting Session: "Advances in Integrated Observations, Modeling, and
Predictions for Weather, Climate, and Impact Assessments I"

Session Conveners: Ana Nunes (UFRJ) and Richard Lawford (Morgan State University)
Outsdanting Student Presentation Awards (OSPA) Liaison: Ana Nunes (UFRJ)
14-Dec-2017/Hydrology/Morning session/H41K/Oral presentations




American Geophysical Union (AGU) Fall Meeting
New Orleans, LA, USA.



Meeting Session: "Advances in Integrated Observations, Modeling, and
Predictions for Weather, Climate, and Impact Assessments II"

Session Conveners: Ana Nunes (UFRJ) and Richard Lawford (Morgan State University)
Outsdanting Student Presentation Awards (OSPA) Liaison: Ana Nunes (UFRJ)
14-Dec-2017/Hydrology/Afternoon session/H43A/Poster presentations




American Geophysical Union (AGU) Fall Meeting
New Orleans, LA, USA.



Poster Presentation: "Examining south atlantic subtropical cyclone Anita using the
Satellite-Enhanced Regional Downscaling for Applied Studies hourly outputs"

Authors: Henrique Vaicberg, Ana Cristina P.A. Palmeira, and Ana Nunes
14-Dec-2017/Hydrology/Afternoon session/Advances in Integrated Observations, Modeling, and
Predictions for Weather, Climate, and Impact Assessments II
Posters

American Geophysical Union (AGU) Fall Meeting
New Orleans, LA, USA.


Oral Presentation: "Satellite-enhanced regional downscaling for applied studies:
The Catarina event"

Author: Ana Nunes
24-Oct-2017 at 14:40 /Session 2: Weather & Climate



NASA Sounder Science Team Meeting
Greenbelt, MD, USA.


Poster Presentation: "Examinando as causas dos extremos de precipitação no sudeste da
América do Sul"

Authors: Geraldo D. Gomes and Ana M.B. Nunes
18-21-Sep-2017/Clima, Variabilidade e Perpecstivas Futuras



VII Simpósio Internacional de Climatologia (VII SIC)
Petrópolis, RJ, Brasil.


Poster Presentation: "Avaliação do impacto das mudanças climáticas
no ciclo ihidrológico e no processo de desertificação do semiárido brasileiro"

Authors: Isabella E. Barros, Iago A. e Silva, Fausto Machado-Silva, and Ana M.B. Nunes
18-21-Sep-2017/Clima, Variabilidade e Perpecstivas Futuras



VII Simpósio Internacional de Climatologia (VII SIC)
Petrópolis, RJ, Brasil.


Poster Presentation: "Análise das duas primeiras secas extremas do século XXI na Amazônia
utilizando o produto SRDAS"

Authors: Beatriz N. Garcia, Renata Libonati, and Ana Nunes
18-21-Sep-2017/Clima, Variabilidade e Perpecstivas Futuras



VII Simpósio Internacional de Climatologia (VII SIC)
Petrópolis, RJ, Brasil.


Master's Thesis Defense: "Synoptic characterization of three episodes of subtropical cyclones
in the south/southeast coast of Brazil using SRDAS"

Candidate: Henrique Vaicberg
29-Sep-2017 at 10:00



Multimedia Room - UFRJ
Dept of Meteorology, G1-04
Ilha do Fundão, Rio de Janeiro, RJ, Brasil.

Master's Thesis Defense: "Using the downscaling of climate projections in the analysis
of the climate change impacts on Parana River basin"

Candidate: Aline de Assis Benezath
28-Sep-2017 at 13:00



Auditório Novos Ventos - UFRJ
Departamento de Meteorologia, Bloco H2
Ilha do Fundão, Rio de Janeiro, RJ, Brasil.

2016
Title Date Local
Poster Presentation: "Satellite-Enhanced Regional Downscaling for Applied Studies:
Extreme Precipitation Events in Southeastern South America"

Authors: Ana Nunes, Geraldo Gomes, and Valeriy Y. Ivanov
16-Dec-2016/Hydrology/Morning session/Remote Sensing Applications for Water Resources
Management, Including Irrigation, Droughts, Floods, and Associated Water Cycle Extremes III
Posters

American Geophysical Union (AGU) Fall Meeting
San Francisco, CA, USA.


Meeting: 14th International Regional Spectral Model (RSM) Workshop

Local Host: Ana Nunes
28–29-Sep-2016/Morning and Afternoon sessions


CCMN Amphitheater, UFRJ, Cidade Universitária,
Ilha do Fundão, Rio de Janeiro, RJ, Brasil.

2015
Title Date Local
Oral Presentation:"Satellite-Enhanced Dynamical Downscaling of Extreme Events"


Author: Ana Nunes
17-Dec-2015/11:05-11:20 /Hydrology/Integrated Observations/Modeling of
Water Cycle Extremes and Attribution of Changes in the Components of the
Hydrological Cycle to Human Influences

American Geophysical Union (AGU) Fall Meeting
San Francisco, CA, USA.


Oral Presentation: "Can Regional Climate Models be used in the assessment of
vulnerability and risk caused by extreme events?"

Author: Ana Nunes
13-Apr-2015/16:30-16:15 /Regional Climate Modeling, Including CORDEX



European Geosciences Union (EGU) General Assembly 2015
Vienna, Austria.






HOME