Climate variability over subtropical South America and the South American monsoon: A review
This paper reviews the relation of the South American Monsoon System (SAMS) with the climate of South America (SA) south of 20°S based on work of the coauthors and other contributions. Two dominant patterns of the midsummer low-level circulation are linked to the seesaw phases of the South Atlantic...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/148159 |
| Acceso en línea: | http://hdl.handle.net/11336/148159 |
| Access Level: | acceso abierto |
| Palabra clave: | MONSOON PRECIPITATION RIVER DISCHARGE SEA SURFACE TEMPERATURE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| Sumario: | This paper reviews the relation of the South American Monsoon System (SAMS) with the climate of South America (SA) south of 20°S based on work of the coauthors and other contributions. Two dominant patterns of the midsummer low-level circulation are linked to the seesaw phases of the South Atlantic convergence zone (SACZ), the lowlevel jet and precipitation field. These circulation patterns and the associated precipitation are consistent with water sources indicators derived from the isotopic content of the meteoric water. Each of these circulation and precipitation patterns are associated with SST anomalies in the subtropical western South Atlantic. The influence of the SAMS on the discharges of the Uruguay and Paraná rivers is examined. The greatest discharges in the Uruguay River are preceded by strong humid, warm air advection. The highest discharge peaks in the Paraná River begin in the middle Paraná basin and are associated with remote patterns of low-frequency variability such as El Niño. |
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