Hydric extremes in Argentina: an updated review with special emphasis on the effects of El Niño and La Niña
The climates of Argentina can be classified as: warm, temperate, cold, humid, semi-arid and arid. Climate dipoles create heat–drought fluctuations in some regions and cold-humidity in others. This review examined dipole events such as “El Niño Southern Oscillation” (ENSO), which reduces rainfall dur...
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| Autores principales: | , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Inglés |
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Facultad de Ciencias Agropecuarias
2025
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/agris/article/view/45897 |
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| Sumario: | The climates of Argentina can be classified as: warm, temperate, cold, humid, semi-arid and arid. Climate dipoles create heat–drought fluctuations in some regions and cold-humidity in others. This review examined dipole events such as “El Niño Southern Oscillation” (ENSO), which reduces rainfall during its cold stage (La Niña) and increases it during the warm stage (El Niño). ENSO is related to changes in the Intertropical Convergence Zone (ITCZ), pressures in the Pacific Ocean, Walker Circulation, sea surface temperatures (SST), and the direction and intensity of trade winds. In the South Atlantic Convergence Zone (SACZ) there are also changes in the direction of the winds that cause reduced rainfall in South America. This work presents examples of ocean currents, air flows, changes in ITCZ, El Niño and La Niña events, and the monitoring of hydric extremes. Photographs of the impacts of droughts and floods on agricultural and livestock areas of Argentina are shown. This review of numerous meteorological and climatic publications aims to support the development of an early warning system to detect and evaluate the occurrence of meteorological factors causing hydric extremes in Argentina. |
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