Ir direto para menu de acessibilidade.
Portal do Governo Brasileiro
Home > PublicaçõesPage 4

Publicações

Quantifying the aerosol effect on droplet size distribution at cloud top.

This work uses the number concentration-effective diameter phase-space to test cloud sensitivity to variations in the aerosol population characteristics, such as the aerosol size distribution, number concentration and hygroscopicity. It is based on the information from the top of a cloud simulated b...
  • por Portal Padrão
  • publicado
  • 25/06/2019
  • 1:53 PM

Corrigendum: Fire responses to the 2010 and 2015/2016 Amazonian droughts.

...
  • por Portal Padrão
  • publicado
  • 18/06/2019
  • 11:01 AM

Is there a classical inertial sublayer over the Amazon Forest?

On the basis of measurements over different surfaces, an inertial sublayer (ISL), where Monin-Obukhov Similarity Theory applies, exists above z = 3h, where h is canopy height. The roughness sublayer is within h < z < 3h. Most studies of the surface layer above forests, however, are able to probe onl...
  • por Portal Padrão
  • publicado
  • 25/05/2019
  • 10:46 AM

The Brazilian Earth System Model ocean-atmosphere (BESM-OA) version 2.5: evaluation of its CMIP5 historical simulation.

The performance of the coupled ocean-atmosphere component of the Brazilian Earth System Model version 2.5 (BESM-OA2.5) was evaluated in simulating the historical period 1850-2005. After a climate model validation procedure in which the main atmospheric and oceanic variabilities were evaluated agains...
  • por Portal Padrão
  • publicado
  • 25/04/2019
  • 2:38 PM

Case study for hybrid power generation combining hydro- and photovoltaic energy resources in the Brazilian semiarid region.

Hydropower is currently the primary energy resource to service the Brazilian electricity sector. However, the dry seasons in the Brazilian semiarid region have become longer due to climate variability, and they have afected the operation of hydropower plants during the last decade. Brazil has a grow...
  • por Portal Padrão
  • publicado
  • 25/03/2019
  • 2:39 PM

A comparative study of intense surface cyclones off the coasts of southeastern Brazil and Mozambique.

An analysis of two groups of near-surface intense cyclonic vortices, one off the southeastern Brazil coast and the other off the Mozambique coast, in the period 19792012 is undertaken for comparison of their characteristics with the help of the TRACK algorithm and the NCEP2 Reanalysis data sets. The...
  • por Portal Padrão
  • publicado
  • 25/03/2019
  • 2:21 PM

Relationship between the streamflows and precipitations in Itapemirim River Basin.

The present paper analyzed the relationship between streamflow and rainfall at the stream of Itapemirim River Watershed (BHRI). The minimum streamflow with duration of seven days (Q7), the average annual streamflow (Qmed) and the annual maximum streamflow (Qmax) of 11 BHRIs sub-basins were determine...
  • por Portal Padrão
  • publicado
  • 25/03/2019
  • 2:01 PM

Os processos de urbanização e conversão florestal na Amazônia paraense: um estudo multiescalar.

Na Amazônia brasileira, as dinâmicas de urbanização e conversão florestal possuem lógicas complexas, dependentes de fatores e agentes atuando em diferentes escalas. Este artigo explora a evolução espacial e temporal da urbanização e da conversão florestal na Amazônia, a partir de element...
  • por Portal Padrão
  • publicado
  • 25/03/2019
  • 10:48 AM

Fire responses to the 2010 and 2015/2016 Amazonian droughts.

Extreme droughts in Amazonia cause anomalous increase in fire occurrence, disrupting the stability of environmental, social, and economic systems. Thus, understanding how droughts affect fire patterns in this region is essential for anticipating and planning actions for remediation of possible impac...
  • por Portal Padrão
  • publicado
  • 25/02/2019
  • 2:22 PM

Evaluating monetary-based benefit-sharing as a mechanism to improve local human development and its importance for impact assessment of hydropower plants in Brazil.

Although hydropower companies and governments have promoted monetary-based Benefit-Sharing Mechanisms alone as a vector of local development for flooded municipalities, it is not possible to identify this evidence in the scientific literature. The present work investigates the quantitative influence...
  • por Portal Padrão
  • publicado
  • 25/02/2019
  • 2:12 PM

First measurements of the ocean-atmosphere CO2 fluxes at the Cabo Frio upwelling system region, Southwestern Atlantic Ocean.

This study presents novel results about ocean-atmosphere CO2exchanges based upon novel directin situmea-surements of turbulentfluxes using the eddy covariance (EC) methodology. This study was carried out on theSoutheast coast of Brazil and the adjacent open ocean during two days of the austral winte...
  • por Portal Padrão
  • publicado
  • 25/02/2019
  • 2:10 PM

What drives intensification of land use at agricultural frontiers in the Brazilian Amazon? evidence from a decision game.

Land-use change results from the decisions of diverse actors in response to economic and political contexts. Identification of underlying decision-making processes is key to understanding land-use patterns, anticipating trends, and designing effective environmental governance mechanisms. Here, we us...
  • por Portal Padrão
  • publicado
  • 25/02/2019
  • 2:09 PM