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336.#.#.a: Artículo

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100.1.#.a: Alessandro, A. P.

524.#.#.a: Alessandro, A. P. (2001). Analysis of the heavy precipitations during the summer 1997-1998 in southeastern South America and their relations with the summer 198. Atmósfera; Vol. 14 No. 4, 2001. Recuperado de https://repositorio.unam.mx/contenidos/4120420

245.1.0.a: Analysis of the heavy precipitations during the summer 1997-1998 in southeastern South America and their relations with the summer 198

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

264.#.0.c: 2001

264.#.1.c: 2009-10-05

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC 4.0 Internacional, https://creativecommons.org/licenses/by-nc/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico editora@atmosfera.unam.mx

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041.#.7.h: eng

520.3.#.a: In this paper the synoptic situation related to the intense rainfalls observed during summer 1997-1998 under strong El Niño conditions is studied. The mean synoptic situation of the summer 1997-1998 was characterized by a positive anomaly in the Pacific Ocean at 500 and 1000 hPa, approximately located at 55ºS,80ºW, northeast of that corresponding to El Niño event of 1982-1983. This phenomenon of blocking activity, along with a band of negative anomalies between 30 and 40ºS and 120 and 40ºW in 500 hPa and the intensification of the mass flux of air from the Amazonia to the northern limits of the Patagonia were the common characteristics of both cases. Then a comparison is performed between the rainfalls associated to El Niño events corresponding to the summer 1982-1983 and 1997-1998, in the south of South America. In both cases, intense rainfalls producing important flooding events within the Rio de la Plata basin have been recorded. During the first event, the maximum precipitation was observed in Paraguay and Misiones (Argentina), while a much larger area located to the south of the latter extending towards the center of Argentina was affected during the second event.

773.1.#.t: Atmósfera; Vol. 14 No. 4 (2001)

773.1.#.o: https://www.revistascca.unam.mx/atm/index.php/atm/index

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022.#.#.a: ISSN electrónico: 2395-8812; ISSN impreso: 0187-6236

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264.#.1.b: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

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harvesting_date: 2023-06-20 16:00:00.0

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245.1.0.b: Analysis of the heavy precipitations during the summer 1997-1998 in southeastern south America and their relations with the summer 1982-1983

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Artículo

Analysis of the heavy precipitations during the summer 1997-1998 in southeastern South America and their relations with the summer 198

Alessandro, A. P.

Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM, publicado en Atmósfera, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Alessandro, A. P. (2001). Analysis of the heavy precipitations during the summer 1997-1998 in southeastern South America and their relations with the summer 198. Atmósfera; Vol. 14 No. 4, 2001. Recuperado de https://repositorio.unam.mx/contenidos/4120420

Descripción del recurso

Autor(es)
Alessandro, A. P.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Analysis of the heavy precipitations during the summer 1997-1998 in southeastern South America and their relations with the summer 198
Fecha
2009-10-05
Resumen
In this paper the synoptic situation related to the intense rainfalls observed during summer 1997-1998 under strong El Niño conditions is studied. The mean synoptic situation of the summer 1997-1998 was characterized by a positive anomaly in the Pacific Ocean at 500 and 1000 hPa, approximately located at 55ºS,80ºW, northeast of that corresponding to El Niño event of 1982-1983. This phenomenon of blocking activity, along with a band of negative anomalies between 30 and 40ºS and 120 and 40ºW in 500 hPa and the intensification of the mass flux of air from the Amazonia to the northern limits of the Patagonia were the common characteristics of both cases. Then a comparison is performed between the rainfalls associated to El Niño events corresponding to the summer 1982-1983 and 1997-1998, in the south of South America. In both cases, intense rainfalls producing important flooding events within the Rio de la Plata basin have been recorded. During the first event, the maximum precipitation was observed in Paraguay and Misiones (Argentina), while a much larger area located to the south of the latter extending towards the center of Argentina was affected during the second event.
Idioma
eng
ISSN
ISSN electrónico: 2395-8812; ISSN impreso: 0187-6236

Enlaces