Dimensão institucional da sustentabilidade e gestão ambiental no município de Moju, Pará: uma aplicação do Barômetro da Sustentabilidade.
Poucas ferramentas de análise de sustentabilidade têm sido aplicadas na Amazônia, em particular no Estado do Pará. Os municípios paraenses inseridos no Polo Biodiesel, com destaque para Moju, vivem uma fase de intensos investimentos agroindustriais com vistas à produção de palma de óleo (ó...
por Portal Padrão
publicado
20/08/2014
2:50 PM
Lightning casualty demographics in Brazil and their implications for safety rules.
A 10-year study of lightning fatalities in Brazil is presented. It is the most complete study undertaken in South America. The study indicates the death rates in the country sorted by season, state, city, type of region, age, gender and circumstances. Ten years of data were collected from the Federa...
por Portal Padrão
publicado
20/08/2014
2:45 PM
Shallow landslide prediction and analysis with risk assessment using a spatial model in a coastal region in the state of São Paulo, Brazil.
This study presents a methodology for susceptibility mapping of shallow landslides just from data and software from the public domain. The study was conducted in a mountainous region located on the southeastern Brazilian coast, in the state of São Paulo. The proposal is that the methodology can be ...
por Portal Padrão
publicado
20/08/2014
2:38 PM
Innovations for a sustainable future: rising to the challenge of nitrogen greenhouse gas management in Latin America.
Latin America encompasses a dizzying array of ecosystems and socioeconomic models, and the region will be highly vulnerable to the projected impacts of climate change in the next century. At the same time, Latin America can significantly contribute to the mitigation of greenhouse gases (GHG) emissio...
por Portal Padrão
publicado
20/08/2014
2:35 PM
Influence of the rainfall seasonal variability in the Caatinga vegetation of NE Brazil by the use of time-series
The climate in the Caatinga, especially precipitation, influences the pattern of spatial and temporal distribution of the vegetation that in turn influences the regional climate from the feedback mechanism of energy flows, water and momentum. This climate-vegetation interaction in the Caatinga is di...
por Portal Padrão
publicado
20/08/2014
2:32 PM
Improvements on lightning density estimation based on analysis of lightning location system performance parameters: brazilian case.
Density maps are one of the most common and powerful lightning data applications, and they are more efficient the more detailed they are. When working with CG lightning data from lightning location systems, some aspects must be included in the analysis to overcome network performance variations. Two...
por Portal Padrão
publicado
20/08/2014
2:28 PM
The South American rainfall dipole: a complex network analysis of extreme events.
Intraseasonal rainfall variability of the South American monsoon system is characterized by a pronounced dipole between southeastern South America and southeastern Brazil. Here we analyze the dynamical properties of extreme rainfall events associated with this dipole by combining a nonlinear synchro...
por Portal Padrão
publicado
20/08/2014
2:23 PM
Ecosystem protection and poverty alleviation in the tropics: perspective from a historical evolution of policy-making in the Brazilian Amazon.
Despite increased intellectual and conceptual consideration of the linkages between ecosystem service (ES) provisions and poverty alleviation (PA) globally, there has been limited analysis of how these paradigms are used and framed in the regional context of policy-making. In this paper, we address ...
por Portal Padrão
publicado
20/06/2014
4:05 PM
Amazon forest biomass density maps: tackling the uncertainty in carbon emission estimates.
As land use change (LUC), including deforestation, is a patchy process, estimating the impact of LUC on carbon emissions requires spatially accurate underlying data on biomass distribution and change. The methods currently adopted to estimate the spatial variation of above- and below-ground biomass ...
por Portal Padrão
publicado
20/06/2014
3:55 PM
Correlation analysis between the occurrence of ionospheric scintillation at the magnetic equator and at the southern peak of the Equatorial ionization anomaly.
Ionospheric scintillation refers to amplitude and phase fluctuations in radio signals due to electron density irregularities associated to structures named ionospheric plasma bubbles. The phenomenon is more pronounced around the magnetic equator where, after sunset, plasma bubbles of varying sizes a...
por Portal Padrão
publicado
20/06/2014
3:37 PM
Mechanisms of water supply and vegetation demand govern the seasonality and magnitude of evapotranspiration in Amazonia and Cerrado.
Evapotranspiration (E) in the Amazon connects forest function and regional climate via its role in pre-cipitation recycling However, the mechanisms regulating water supply to vegetation and its demand forwater remain poorly understood, especially during periods of seasonal water deficits In this stu...
por Portal Padrão
publicado
20/06/2014
2:53 PM
On β2 stepped leaders in negative cloud-to-ground lightning.
In their seminal lightning studies using streak cameras, Schonland et al. (1938) identified four negative stepped leader events that they term β2, a rather rare variant of the type β leader, and in it, the second and slower stage of the leader is associated with the appearance of one or more fast ...
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