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19 results on '"de Oliveira, Cristiano Prestrelo"'

1. Diurnal cycle of precipitation in Brazil

Author

Santos e Silva, Cláudio Moisés, Rodrigues, Daniele Tôrres, Medeiros, Felipe, Valentim, Aléxia Monteiro, de Araújo, Paula Andressa Alves, da Silva Pinto, Joicy, Mutti, Pedro Rodrigues, Mendes, Keila Rêgo, Bezerra, Bergson Guedes, de Oliveira, Cristiano Prestrelo, and Gonçalves, Weber Andrade

Published
2024
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12. Climate Profiles in Brazilian Microregions

Author

Silveira Marinho, Kalline Fabiana, primary, Barbosa Andrade, Lara de Melo, additional, Constantino Spyrides, Maria Helena, additional, Santos e Silva, Claudio Moisés, additional, de Oliveira, Cristiano Prestrelo, additional, Guedes Bezerra, Bergson, additional, and Rodrigues Mutti, Pedro, additional

Published
2020
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16. The 2014 southeast Brazil austral summer drought: regional scale mechanisms and teleconnections

Author

Coelho, Caio A. S., primary, de Oliveira, Cristiano Prestrelo, additional, Ambrizzi, Tércio, additional, Reboita, Michelle Simões, additional, Carpenedo, Camila Bertoletti, additional, Campos, José Leandro Pereira Silveira, additional, Tomaziello, Ana Carolina Nóbile, additional, Pampuch, Luana Albertani, additional, Custódio, Maria de Souza, additional, Dutra, Lívia Marcia Mosso, additional, Da Rocha, Rosmeri P., additional, and Rehbein, Amanda, additional

Published
2015
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17. Extreme Intertropical Convergence Zone shifts over Southern Maritime Continent.

Author

Freitas, Ana Carolina Vasques, Aímola, Luis, Ambrizzi, Tércio, and de Oliveira, Cristiano Prestrelo

Subjects
INTERTROPICAL convergence zone, OCEAN temperature, WALKER circulation, ATMOSPHERIC pressure
Abstract

This study investigated the Intertropical Convergence Zone (ITCZ) extreme shifts in the Southern Maritime Continent (SMC) region in austral spring during the period 1979-2015. The results have shown that the ITCZ Southern Boundary (SB) presents great correlations with a meridional Sea Surface Temperature (SST) gradient and Indian Ocean Dipole (IOD) events. However, besides these local forcing, the extreme ITCZ shifts are also influenced by El Niño-Southern Oscillation (ENSO) events and an associated zonal SST gradient. The extreme shifts are due mainly to the combination of changes in Walker Circulation (WC) in the Pacific and Indian Ocean (IO) and local SST anomalies. Therefore, during ITCZ southward extreme shifts, the WC is stronger leading to the strengthening of the northwest equatorial winds in the IO, which pumps moist air and boosts the diabatic heating in the SMC due to the local positive SST anomalies present in this region. Otherwise, during northward extreme shifts, the WC is weaker, not allowing the performance of the northwest equatorial winds in the IO, which associated with the local negative SST anomalies, leads to drier conditions in the SMC region. Another interesting result found here is that a strong meridional or zonal index not necessarily implies a larger shift. The combination of very strong ENSO and IOD events can lead to greater ITCZ SB shifts. Besides, the ITCZ SB shifts can act as a bridge linking IOD and ENSO. [ABSTRACT FROM AUTHOR]

Published
2017
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19. Interannual relations between South American rainfall and tropical sea surface temperature anomalies before and after 1976.

Author

Kayano, Mary Toshie, de Oliveira, Cristiano Prestrelo, and Andreoli, Rita Valéria

Subjects
*METEOROLOGICAL precipitation, *SOUTHERN oscillation, *ATMOSPHERIC pressure, *OCEAN-atmosphere interaction, EL Nino
Abstract

The article presents analysis on the differences in the interannual relationships of precipitation in South America between 1948-1976 and 1977-2002 periods. Results proposes that the differences between the two periods may be contemplated as variations in the Bolivian high-pressure system. Both the tropical South Atlantic and tropical North Atlantic indices might work to weaken the positive El Niño-Southern Oscillation relations.

Published
2009
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