Palabras clave
Precipitación
Vientos fuertes,
Densidad de trayectoria
Radio de ciclón
Cómo citar
Resumen
El sistema atmosférico ciclónico extratropical, que cuando se menciona en los medios brasileños, en general, causa pánico en la población, se aborda aquí en un lenguaje sencillo. El objetivo es compartir - con todos los interesados en el tema - la definición y proceso de formación de ciclones extratropicales, los impactos que causan en Brasil y sus aspectos climatológicos en el Hemisferio Sur y el Océano Atlántico Sur. Este estudio tiene como base metodológica la revisión de la literatura sobre el uso de datos de última generación (reanálisis ERA5) y el algoritmo de identificación y seguimiento de ciclones. Por lo tanto, los ciclones extratropicales se identifican desde 1991 hasta 2020 en los datos de presión al nivel del mar del reanálisis de ERA5. Entre los resultados, la banda latitudinal alrededor de la Antártida es la que tiene mayor frecuencia de ciclones. Estos sistemas también ocurren con frecuencia en el sureste de Australia y en la costa de América del Sur entre las latitudes de Río de Janeiro y el sur de Argentina. Considerando el hemisferio sur, los ciclones extratropicales son más frecuentes e intensos en los meses de invierno. Entre las costas sur y sureste de Brasil, hay una mayor frecuencia de estos sistemas en verano.
Citas
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