A participação da América Latina no mecanismo de desenvolvimento limpo.
A ligação entre mudança climática e desenvolvimento sustentável foi dada pela aplicação do Mecanismo do Desenvolvimento Limpo (MDL) do Protocolo de Kyoto, uma ferramenta baseado no mercado que incentiva a redução das emissões de gases de efeito estufa e promove o desenvolvimento sustentáv...
por Portal Padrão
publicado
20/08/2015
2:46 PM
Panorama da sustentabilidade na fronteira agrícola de bioenergia na Amazônia.
Esta pesquisa apresenta um panorama da sustentabilidade em sete municípios paraenses, que fazem parte do polo de produção do dendê (Elaeis guineensis Jacq.) na Amazônia oriental. Trata-se de uma área com aproximadamente 46.000 km² que apresenta diferentes padrões de usos da terra, considerad...
por Portal Padrão
publicado
20/08/2015
2:43 PM
Hybrid color segmentation method using a customized nonlinear similarity function.
Image segmentation is a fundamental step in several image processing tasks. It is a process where an image is divided into its constituent regions guided by a similarity criterion. One very interesting image segmentation method is the color structure code (CSC), which combines simultaneously split-a...
por Portal Padrão
publicado
20/08/2015
2:25 PM
Integrating forest cover change with census data: drivers and contexts from Bolivia and the lao PDR.
The aim of this paper is to explore possible links between forest cover change and characteristics of social-ecological systems at sub-national scale based mainly on census data. We assessed relationships between population density, poverty, ethnicity, accessibility and forest cover change during th...
por Portal Padrão
publicado
20/08/2015
2:16 PM
Characterising Brazilian biomass burning emissions using WRF-Chem with MOSAIC sectional aerosol.
The South American Biomass Burning Analysis (SAMBBA) field campaign took detailed in situ flight measurements of aerosol during the 2012 dry season to characterise biomass burning aerosol and improve understanding of its impacts on weather and climate. Developments have been made to the Weather Rese...
por Portal Padrão
publicado
20/08/2015
2:10 PM
Day-to-day differences in the characterization of lightning observed by multiple high-speed cameras.
This study aims to analyze how the visible parameters of cloud-to-ground discharges such as the flash multiplicity and duration, the interstroke interval, the continuing current duration and the number of ground contacts per flash vary between observations conducted on different days. Several author...
por Portal Padrão
publicado
20/08/2015
2:07 PM
Experiences with a socio-environmental modeling course.
In a social-environmental modeling course, students need to learn complementary skills that include the conceptualisation of a model, different modeling paradigms, computer programming, and the process of rigorously converting ideas and data into a computational program using a given toolkit. Such t...
por Portal Padrão
publicado
20/08/2015
2:04 PM
Impact of climate changes on potential sugarcane yield in Pernambuco, northeastern region of Brazil.
Sugarcane is a typical culture of hot and humid climate and therefore is well adapted to the climate in many regions of Brazil. However, there may be yield reductions in the Northeastern region of Brazil due to possible future reductions in rainfall levels. The aim of this study was to simulate, usi...
por Portal Padrão
publicado
20/06/2015
2:28 PM
Improving graph-based image segmentation using non-linear color similarity metrics.
We present a new segmentation method called Weighted Felzenszwalb and Hutten-locher method (WFH), an improved version of the well-known graph-based segmentation method, Felzenszwalb and Huttenlocher method (FH). Our method uses a non-linear discrimination function based on Polynomial Mahalanobis Dis...
por Portal Padrão
publicado
20/06/2015
2:22 PM
Nitrogen management challenges in major watersheds of South America.
Urbanization and land use changes alter the nitrogen (N) cycle, with critical consequences for continental freshwater resources, coastal zones, and human health. Sewage and poor watershed management lead to impoverishment of inland water resources and degradation of coastal zones. Here we review the...
por Portal Padrão
publicado
20/06/2015
2:18 PM
Thunderstorm climatology of Brazil: ENSO and Tropical Atlantic connections.
In this report monthly thunderstorm days (TD) in 14 large cities of Brazil from 1951 to 2010 are compared with data obtained in the first part of the 20th century in the same cities and correlated with sea surface temperature (SST) of the equatorial Pacific Ocean and Tropical Atlantic Ocean. On aver...
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