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ENSO effects on the relationship between aerosols and evapotranspiration in the south of the Amazon biome.
Palácios, Rafael; Castagna, Daniela; Barbosa, Luzinete; Souza, Adilson P; Imbiriba, Breno; Zolin, Cornélio A; Nassarden, Danielle; Duarte, Leilane; Morais, Fernando G; Franco, Marco A; Cirino, Glauber; Kuhn, Paulo; Sodré, Giordani; Curado, Leone; Basso, João; Roberto de Paulo, Sérgio; Rodrigues, Thiago.
Afiliación
  • Palácios R; Instituto de Geociências, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil. Electronic address: rpalacios@ufpa.br.
  • Castagna D; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Barbosa L; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Souza AP; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Imbiriba B; Instituto de Geociências, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.
  • Zolin CA; Empresa Brasileira de Pesquisa Agropecuária (Embrapa), Sinop, MT, 78550-000, Brazil.
  • Nassarden D; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Duarte L; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Morais FG; Instituto de Física, Universidade de São Paulo, São Paulo, SP, 05508-090, Brazil.
  • Franco MA; Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo, SP, 05508-090, Brazil.
  • Cirino G; Instituto de Geociências, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.
  • Kuhn P; Instituto de Geociências, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.
  • Sodré G; Instituto de Geociências, Universidade Federal do Pará, Belém, PA, 66075-110, Brazil.
  • Curado L; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Basso J; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Roberto de Paulo S; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil.
  • Rodrigues T; Instituto de Física, Universidade Federal de Mato Grosso, Cuiabá, MT, 78060-900, Brazil; Instituto de Física, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, 79070-900, Brazil.
Environ Res ; 250: 118516, 2024 Jun 01.
Article en En | MEDLINE | ID: mdl-38373551
ABSTRACT
The effects of the El Nino-Southern Oscillation (ENSO) events have local, regional, and global consequences for water regimes, causing floods or extreme drought events. Tropical forests are strongly affected by ENSO, and in the case of the Amazon, its territorial extension allows for a wide variation of these effects. The prolongation of drought events in the Amazon basin contributes to an increase in gas and aerosol particle emissions mainly caused by biomass burning, which in turn alter radiative fluxes and evapotranspiration rates, cyclically interfering with the hydrological regime. The ENSO effects on the interactions between aerosol particles and evapotranspiration is a critical aspect to be systematically investigated. Therefore, this study aimed to evaluate the ENSO effect on a site located on the southern portion of the Amazonian region. In addition to quantifying and testing possible differences between aerosols and evapotranspiration under different ENSO classes (El Niño, La Niña and Neutrality), this study also evaluated possible variations in evapotranspiration as a function of the aerosol load. A highly significant difference was found for air temperature, relative humidity and aerosol load between the El Niño and La Niña classes. For evapotranspiration, significant differences were found for the El Niño and La Niña classes and for El Niño and Neutrality classes. Under the Neutrality class, the aerosol load correlated significantly with evapotranspiration, explaining 20% of the phenomenon. Under the El Niño and La Niña classes, no significant linear correlation was found between aerosol load and evapotranspiration. However, the results showed that for the total data set, there is a positive and significant correlation between aerosol and evapotranspiration. It increases with a quadratic fit, i.e., the aerosol favors evapotranspiration rates up to a certain concentration threshold. The results obtained in this study can help to understand the effects of ENSO events on atmospheric conditions in the southern Amazon basin, in addition to elucidating the role of aerosols in feedback to the water cycle in the region.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aerosoles / El Niño Oscilación del Sur País/Región como asunto: America do sul / Brasil Idioma: En Revista: Environ Res Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aerosoles / El Niño Oscilación del Sur País/Región como asunto: America do sul / Brasil Idioma: En Revista: Environ Res Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos