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Marta Llopart  - - - 
Top co-authors
Rosmeri Porfírio Da Rocha

41 shared publications

Departamento de Ciências Atmosféricas, Universidade de São Paulo (USP), São Paulo, SP 05508-090, Brazil

Michelle Simões Reboita

9 shared publications

Universidade Federal de Itajubá, Brasil

5
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0
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6
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Publication Record
Distribution of Articles published per year 
(2013 - 2018)
Total number of journals
published in
 
5
 
Publications
Article 0 Reads 1 Citation Previsão Climática Sazonal para o Brasil Obtida Através de Modelos Climáticos Globais e Regional Michelle Simões Reboita, Cássia Gabriele Dias, Lívia Márcia ... Published: 01 June 2018
Revista Brasileira de Meteorologia, doi: 10.1590/0102-7786332001
DOI See at publisher website ABS Show/hide abstract
Resumo Este estudo avalia a destreza de dois modelos climáticos globais (CPTEC e CFSv2) e de um modelo climático regional (RegCM4) em prever o clima sazonal em diferentes regiões do Brasil. O RegCM4 foi dirigido tanto com as saídas do sistema CFSv2 quanto do modelo do CPTEC. Também foram utilizadas duas versões do RegCM: a 4.3 e a 4.5. O RegCM4.3 foi dirigido por seis membros do CFSv2, enquanto o RegCM4.5 foi dirigido por um membro do modelo global do CPTEC. Todas as previsões iniciaram cerca de dois meses antes do trimestre a ser previsto e ao todo foram realizadas 94 simulações com o modelo regional. De forma geral, o RegCM4 adiciona valor às previsões dos modelos climáticos globais, principalmente, quando é aninhado às saídas do modelo do CPTEC. Quando o RegCM4.5 é dirigido por esse modelo global e é utilizada a parametrização de convecção cumulus de Emanuel há uma boa performance do modelo regional na previsão da precipitação e temperatura do ar em quase todo o Brasil.
Article 5 Reads 2 Citations Extratropical cyclones over the southwestern South Atlantic Ocean: HadGEM2-ES and RegCM4 projections Michelle S. Reboita, Rosmeri P. Da Rocha, Marcelo R. De Souz... Published: 25 March 2018
International Journal of Climatology, doi: 10.1002/joc.5468
DOI See at publisher website
Article 2 Reads 5 Citations Land Use Change over the Amazon Forest and Its Impact on the Local Climate Marta Llopart, Michelle Reboita, Erika Coppola, Filippo Gior... Published: 03 February 2018
Water, doi: 10.3390/w10020149
DOI See at publisher website ABS Show/hide abstract
Simple Summary Abstract One of the most important anthropogenic influences on climate is land use change (LUC). In particular, the Amazon (AMZ) basin is a highly vulnerable area to climate change due to substantial modifications of the hydroclimatology of the region expected as a result of LUC. However, both the magnitude of these changes and the physical process underlying this scenario are still uncertain. This work aims to analyze the simulated Amazon deforestation and its impacts on local mean climate. We used the Common Land Model (CLM) version 4.5 coupled with the Regional Climate Model (RegCM4) over the Coordinated Regional Climate Downscaling Experiment (CORDEX) South America domain. We performed one simulation with the RegCM4 default land cover map (CTRL) and one simulation under a scenario of deforestation (LUC), i.e., replacing broadleaf evergreen trees with C3 grass over the Amazon basin. Both simulations were driven by ERA Interim reanalysis from 1979 to 2009. The climate change signal due to AMZ deforestation was evaluated by comparing the climatology of CTRL with LUC. Concerning the temperature, the deforested areas are about 2 °C warmer compared to the CTRL experiment, which contributes to decrease the surface pressure. Higher air temperature is associated with a decrease of the latent heat flux and an increase of the sensible heat flux over the deforested areas. AMZ deforestation induces a dipole pattern response in the precipitation over the region: a reduction over the west (about 7.9%) and an increase over the east (about 8.3%). Analyzing the water balance in the atmospheric column over the AMZ basin, the results show that under the deforestation scenario the land surface processes play an important role and drive the precipitation in the western AMZ; on the other hand, on the east side, the large scale circulation drives the precipitation change signal. Dipole patterns over scenarios of deforestation in the Amazon was also found by other authors, but the precipitation decrease on the west side was never fully explained. Using budget equations, this work highlights the physical processes that control the climate in the Amazon basin under a deforestation scenario.
Conference 6 Reads 0 Citations Land use change over Amazon Forest and its impact on the climate Marta Llopart, Michelle Reboita, Rosmeri Da Rocha Published: 05 November 2017
First International Electronic Conference on the Hydrological Cycle, doi: 10.3390/chycle-2017-04838
DOI See at publisher website
Article 0 Reads 0 Citations VARIABILIDADE INTERANUAL DA PRECIPITAÇÃO SIMULADA PELO REGCM4: ANÁLISE DE SENSIBILIDADE À VARIAÇÃO DE ESQUEMAS DE SUPERF... Marta Llopart, Nathalie Boiaski, Rosmeri Da Rocha Published: 13 November 2013
Ciência e Natura, doi: 10.5902/2179460x11650
DOI See at publisher website ABS Show/hide abstract
O objetivo desse trabalho foi analisar a variabilidade interanual da precipitação sobre a AMZ e LPB simulada pelo RegCM4 utilizando duas diferentes parametrizações de superfície.
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