EFECTOS DE EVENTOS EL NIÑO Y LA NIÑA SOBRE LAS LAGUNAS DEL SUR DE LA REGIÓN PAMPEANA (ARGENTINA)

Federico Ferrelli

Resumo


En este trabajo se estudiaron los efectos de eventos El Niño y La Niña sobre la distribución espacio-temporal de las precipitaciones y el agua superficial en el sur de la Región Pampeana, Argentina. Para ello, se analizaron series mensuales de precipitación con el método de Quintiles, el de la tendencia central o la Normal y el Índice Estandarizado de Precipitación. Se evidenció una relación entre la variabilidad pluviométrica con la ocurrencia de eventos El Niño y La Niña. A partir de entonces se analizaron los impactos de los mismos sobre el agua superficial. Durante un año seco, el número de cuerpos de agua mayores a 2 km2 fue 6 veces menor que durante uno húmedo. La información obtenida en este trabajo constituye una herramienta que contribuiría a estudios ambientales y aportaría información para orientar las políticas de ordenamiento sustentable del territorio.

Palabras clave: Variabilidad Pluviométrica; El Niño; La Niña; Variación del Agua Superficial.


EFFECTS OF EL NIÑO AND LA NIÑA EVENTS ON SHALLOW LAKES LOCATED IN THE SOUTHERN PAMPAS (ARGENTINA)

ABSTRACT
In this study, the effects of El Niño and La Niña events were studied considering a spatial and temporal distribution of rainfall and surface water in the south of the Pampas, Argentina . To carry it out, monthly series of precipitation were analyzed by the method of Quintiles, the central tendency or Normal and Standardized Precipitation Index. An evident relationship arise between rainfall variability and the occurrence of El Niño and La Niña. On the other hand, taking into account the impacts on surface water during a dry year, the number of water bodies larger than 2 km2 was six times less than during a wet one. The information obtained in this work represent a tool that will help environmental studies and provide information to guide policies for sustainable land management.

Keywords: Rainfall Variability; El Niño; La Niña; Variation of Surface Water.


EFEITOS DOS EVENTOS EL NIÑO E LA NIÑA SOBRE OS LAGOS DO SUL DA REGIÃO PAMPEANA (ARGENTINA)

RESUMO
Neste trabalho foram estudados os efeitos do El Niño e da La Niña sobre a distribuição espaço-temporal das precipitações e da água de superfície no sul da
Região Pampeana da Argentina. Para tanto, analisaram-se as séries mensais de precipitação com base no método de Quintiles, a tendência central ou normal e o Índice Padronizado de Precipitação. Identificou-se uma relação entre a variabilidade da precipitação com a ocorrência dos eventos El Niño e La Niña. Posteriormente, analisaram-se os impactos dos mesmos sobre a água superficial. Durante um ano seco, o número de corpos d’água maiores do que 2 km2 foi 6 vezes menor que durante um ano úmido. As informações obtidas neste trabalho constituem uma ferramenta que pode contribuir na realização de estudos ambientais e fornecer informações para orientar as políticas de ordenamento sustentável do território.

Palavras-chave: Variabilidade Pluviométrica; El Niño; La Niña; Variação das Águas Superficiais.


Palavras-chave


Variabilidad Pluviométrica; El Niño; La Niña; Variación del Agua Superficial

Texto completo:

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DOI: http://dx.doi.org/10.18764/2446-6549/interespaco.v2n6p122-142

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Direitos autorais 2017 InterEspaço: Revista de Geografia e Interdisciplinaridade

Licença Creative Commons
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial-SemDerivações 4.0 Internacional.

InterEspaço: Revista de Geografia e Interdisciplinaridade

ISSN 2446-6549

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