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Characterizing spatio-temporal patterns of social vulnerability to droughts, degradation and desertification in the Brazilian northeast.

Examples of how environmental susceptibility has a direct impact on the social vulnerability of a population, by affecting both the social and cultural life quality are discussed for the Northeast of Brazil, which is considered to be the poorest region of the country. Several direct and indirect mec...
  • por Portal Padrão
  • publicado
  • 21/06/2020
  • 12:33 PM

Evaluation of surface fluxes using the WRF model – a case study to the Bananal wetlands? region.

The present work aimed to analyze the simulations of surface fluxes of sensible and latent heat, and global radiation using the mesoscale atmospheric model (WRF) for the Bananal Island (Tocantins state, Brazil) region during three distinct seasonal periods (flooded, dry, and wet) in 2004. The final ...
  • por Portal Padrão
  • publicado
  • 18/06/2020
  • 9:55 AM

Interannual variability of carbon uptake of secondary forests in the Brazilian Amazon (2004-2014).

Tropical secondary forests (SF) play an important role in the global carbon cycle as a major terrestrial carbon sink. Here, we use high‐resolution TerraClass data set for tracking land use activities in the Brazilian Amazon from 20042014 to detect spatial patterns and carbon sequestration dynamics...
  • por Portal Padrão
  • publicado
  • 15/06/2020
  • 11:29 AM

Variabilidade estacional do balanço de ondas longas em um ecossistema de mata atlântica no Estado de Alagoas – Brasil.

O conhecimento do balanço de radiação ondas longas (BOL) é importante para determinação das trocas energéticas que ocorrem no sistema superfície-atmosfera. Assim, neste trabalho avaliou-se a variabilidade estacional do BOL numa área de Mata Atlântica, através da análise da influência de...
  • por Portal Padrão
  • publicado
  • 15/06/2020
  • 11:28 AM

Quantile graphs for EEG-based diagnosis of Alzheimer’s disease.

Known as a degenerative and progressive dementia, Alzheimers disease (AD) affects about 25 million elderly people around the world. This illness results in a decrease in the productivity of people and places limits on their daily lives. Electroencephalography (EEG), in which the electrical brain act...
  • por Portal Padrão
  • publicado
  • 15/06/2020
  • 11:26 AM

Atmospheric concentrations and dry deposition of reactive nitrogen in the state of São Paulo, Brazil.

Estimates of nitrogen deposition play a key role in better understanding the human impacts on the nitrogen biogeochemical cycle. This paper examines the concentration of reactive nitrogen (Nr) in the atmosphere and the average dry deposition in the state of São Paulo, Brazil. The Nr species that we...
  • por Portal Padrão
  • publicado
  • 14/06/2020
  • 2:08 PM

Avoiding invalid transitions in land cover trajectory classification with a compound maximum a posteriori approach.

Classifying remote sensing time-series in land cover trajectories can provide essential information about ecosystems functioning and about the impacts of natural phenomena or human activities over the environment. The existing approaches commonly used for this task can present serious drawbacks, suc...
  • por Portal Padrão
  • publicado
  • 14/06/2020
  • 2:04 PM

A spatiotemporal database on the energy, macro and micro-nutrients from the Brazilian agricultural production.

To construct this database, we integrate the nutritional content of 62 crops and 5 livestock categories to estimate the amount of 21 macro and micro-nutrients (including energy) that were produced from agriculture in each Brazilian municipality during the last three decades. Additionally, we allocat...
  • por Portal Padrão
  • publicado
  • 14/06/2020
  • 2:02 PM

Comparing solar data from NWP models for Brazilian territory.

Brazil is experiencing continuous growth in the solar energy market over the last years, and it is expected that solar power plants will have a significant contribution to the Brazilian energy matrix soon. The solar irradiance variability is an important issue due to its impact on electricity distri...
  • por Portal Padrão
  • publicado
  • 27/05/2020
  • 2:58 PM

A worldwide meta-analysis review of restriction criteria for landfill siting using geographic information systems

One of the most crucial parts of solid waste management is determining landfill site location, since multiple factors must be considered and there is no universal formula. The main purpose of this study is to make a worldwide systematic review of restriction criteria used for landfill siting using g...
  • por Portal Padrão
  • publicado
  • 25/05/2020
  • 8:31 AM

Impacto del cambio climático en el turismo y los desafíos: el escenario brasileño.

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  • por Portal Padrão
  • publicado
  • 21/05/2020
  • 12:27 PM

Comparison of cloud cover detection algorithms on sentinel-2 images of the Amazon tropical forest.

Tropical forests regulate the global water and carbon cycles and also host most of the worlds biodiversity. Despite their importance, they are hard to survey due to their location, extent, and particularly, their cloud coverage. Clouds hinder the spatial and radiometric correction of satellite image...
  • por Portal Padrão
  • publicado
  • 21/05/2020
  • 12:24 PM