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Liebmann, B.; Kiladis, G.N.; Allured, D.; Vera, C.S.; Jones, C.; Carvalho, L.M.V.; Bladé, I.; Gonzáles, P.L.M. "Mechanisms associated with large daily rainfall events in Northeast Brazil" (2011) Journal of Climate. 24(2):376-396
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Abstract:

The mechanisms resulting in large daily rainfall events in Northeast Brazil are analyzed using data filtering to exclude periods longer than 30 days. Composites of circulation fields that include all independent events do not reveal any obvious forcing mechanisms as multiple patterns contribute to Northeast Brazil precipitation variability. To isolate coherent patterns, subsets of events are selected based on anomalies that precede the Northeast Brazil precipitation events at different locations. The results indicate that at 10°S, 40°W, the area of lowest annual rainfall in Brazil, precipitation occurs mainly in association with trailing midlatitude synoptic wave trains originating in either hemisphere. Closer to the equator at 5°S, 37.5°W, an additional convection precursor is found to the west, with a spatial structure consistent with that of a Kelvin wave. Although these two sites are located within only several hundred kilometers of each other and the midlatitude patterns that induce precipitation appear to be quite similar, the dates on which large precipitation anomalies occur at each location are almost entirely independent, pointing to separate forcing mechanisms. © 2011 American Meteorological Society.

Registro:

Documento: Artículo
Título:Mechanisms associated with large daily rainfall events in Northeast Brazil
Autor:Liebmann, B.; Kiladis, G.N.; Allured, D.; Vera, C.S.; Jones, C.; Carvalho, L.M.V.; Bladé, I.; Gonzáles, P.L.M.
Filiación:NOAA/Earth System Research Laboratory, CIRES Climate Diagnostics Center, Boulder, CO, United States
Physical Sciences Division, NOAA/Earth System Research Laboratory, Boulder, CO, United States
CIMA/UBA-CONICET, Department of Atmospheric and Ocean Sciences/FCEyN, UBA, Buenos Aires, Argentina
Institute for Computational Earth System Science, University of California, Santa Barbara, CA, United States
Department of Geography and Institute for Computational Earth System Science, University of California, Santa Barbara, CA, United States
Department of Atmospheric Sciences, University of São Paulo, São Paulo, Brazil
Departament d'Astronomia i Meteorologia, Universitat de Barcelona, Barcelona, Spain
Palabras clave:Extreme events; Kelvin waves; Rainfall; South America; Annual rainfall; Daily rainfall; Data filtering; Extreme events; Kelvin waves; Midlatitudes; Northeast Brazil; Precipitation anomalies; Precipitation events; Precipitation variability; Rainfall; South America; Spatial structure; Wave train; Coastal zones; Gravity waves; Locomotives; Railroad cars; Rain; atmospheric convection; extreme event; formation mechanism; Kelvin wave; precipitation intensity; rainfall; Brazil
Año:2011
Volumen:24
Número:2
Página de inicio:376
Página de fin:396
DOI: http://dx.doi.org/10.1175/2010JCLI3457.1
Título revista:Journal of Climate
Título revista abreviado:J. Clim.
ISSN:08948755
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08948755_v24_n2_p376_Liebmann

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Citas:

---------- APA ----------
Liebmann, B., Kiladis, G.N., Allured, D., Vera, C.S., Jones, C., Carvalho, L.M.V., Bladé, I.,..., Gonzáles, P.L.M. (2011) . Mechanisms associated with large daily rainfall events in Northeast Brazil. Journal of Climate, 24(2), 376-396.
http://dx.doi.org/10.1175/2010JCLI3457.1
---------- CHICAGO ----------
Liebmann, B., Kiladis, G.N., Allured, D., Vera, C.S., Jones, C., Carvalho, L.M.V., et al. "Mechanisms associated with large daily rainfall events in Northeast Brazil" . Journal of Climate 24, no. 2 (2011) : 376-396.
http://dx.doi.org/10.1175/2010JCLI3457.1
---------- MLA ----------
Liebmann, B., Kiladis, G.N., Allured, D., Vera, C.S., Jones, C., Carvalho, L.M.V., et al. "Mechanisms associated with large daily rainfall events in Northeast Brazil" . Journal of Climate, vol. 24, no. 2, 2011, pp. 376-396.
http://dx.doi.org/10.1175/2010JCLI3457.1
---------- VANCOUVER ----------
Liebmann, B., Kiladis, G.N., Allured, D., Vera, C.S., Jones, C., Carvalho, L.M.V., et al. Mechanisms associated with large daily rainfall events in Northeast Brazil. J. Clim. 2011;24(2):376-396.
http://dx.doi.org/10.1175/2010JCLI3457.1