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Ozone sounding in the metropolitan area os São Paulo, Brazil: wet and dry season campanigns of 2006.

In the Metropolitan Area of São Paulo (MASP), located in southeastern Brazil, surface ozone concentrations are often well above the national air quality standards. In this experimental study, we attempted to characterize the vertical profile of atmospheric ozone and transport of the ozone plume in ...
  • por Portal Padrão
  • publicado
  • 23/08/2012
  • 2:11 PM

Estudo da qualidade e quantidade da água em microbacia, afluente do rio Paraíba do Sul – São Paulo, após ações de preservação ambiental.

Cada vez mais são necessários programas de monitoramento da qualidade e quantidade da água como subsídios para avaliar as condições dos mananciais e, além disso, propiciar informações para a tomada de decisão com relação ao gerenciamento dos recursos hídricos. Este estudo analisou a qua...
  • por Portal Padrão
  • publicado
  • 23/08/2012
  • 2:10 PM

On the Atlantic cold tongue mode and the role of the Pacific ENSO.

...
  • por Portal Padrão
  • publicado
  • 23/08/2012
  • 2:07 PM

Modeling the spatial and temporal heterogeneity of deforestation-driven carbon emissions: the INPE-EM framework applied to the Brazilian Amazon.

We present a generic spatially explicit modeling framework to estimate carbon emissions from deforestation (INPE-EM). The framework incorporates the temporal dynamics related to the deforestation process and accounts for the biophysical and socioeconomic heterogeneity of the region under study. We b...
  • por Portal Padrão
  • publicado
  • 23/08/2012
  • 2:06 PM

Aerossóis atmosféricos e a quantificação do recurso energético solar: experimentos em modelo de transferência radiativa.

...
  • por Portal Padrão
  • publicado
  • 23/07/2012
  • 2:54 PM

Climate diagnostics of three major drought events in the Amazon and illustrations of their seasonal precipitation predictions.

The Amazon has a well-defined wet austral summer monsoon and dry winter monsoon precipitation regime and experienced a sequence of drought events in the last 13 years. This study performs a comparative assessment of observed and predicted climate conditions during the three most recent drought event...
  • por Portal Padrão
  • publicado
  • 23/06/2012
  • 2:51 PM

Climategate and the virtue of the scientific community: an editorial commentary on the Maibach et al. and Grundmann opinion articles.

The controversy dubbed Climategate erupted in late 2009 exactly as diplomats around the world were preparing their positions for the negotiations at the especially high-profile 15th Conference of the Parties under the United Nations Framework Convention on Climate Change (UNFCCC). This meeting was d...
  • por Portal Padrão
  • publicado
  • 26/05/2012
  • 1:08 PM

Improving extreme precipitation forecasts in Rio de Janeiro, Brazil: are synoptic patterns efficient for distinguishing ordinary from heavy rainfall episodes?

This work analysed heavy rainfall events and their predictability on Rio de Janeiro, Brazil, using rain gauge data from 2000 to 2010, atmospheric model outputs, and an artificial neural network based on adaptive resonance theory. The latter was applied on top of atmospheric simulations for 2009 and ...
  • por Portal Padrão
  • publicado
  • 23/05/2012
  • 3:10 PM

Agricultural land use dynamics in the Brazilian Amazon based on remote sensing and census data.

The potential impact of deforestation in the Brazilian Amazon on greenhouse gas emissions to the atmosphere calls for policies that take account of changes in forest cover. Although much research has focused on the location and effects of deforestation, little is known about the distribution and rea...
  • por Portal Padrão
  • publicado
  • 23/03/2012
  • 3:18 PM

Land use transitions in South America: framing the present, preparing for a sustainable future.

South America has experienced signifi cant land use transitions in the past, especially due to the expansion of large-scale agriculture in countries such as Brazil and Argentina. This expansion has supported economic growth, but has caused serious environmental consequences. Therefore, countries in ...
  • por Portal Padrão
  • publicado
  • 23/03/2012
  • 3:09 PM

LuccME-TerraME: an open-source framework for spatially explicit land use change modelling.

LuccME is an open-source framework for the development of spatially explicit land use and cover change models, built as an extension of the TerraME programming environment. LuccME simplifi es the creation of deforestation, agricultural expansion, urban sprawl and other land change processes at diffe...
  • por Portal Padrão
  • publicado
  • 22/03/2012
  • 4:39 PM

Downscaling of South America present climate driven by 4-member HadCM3 runs.

The objective of this work is to evaluate climate simulations over South America using the regional Eta Model driven by four members of an ensemble of the UK Met Office Hadley Centre HadCM3 global model. The Eta Model has been modified with the purpose of performing long-term decadal integrations an...
  • por Portal Padrão
  • publicado
  • 23/02/2012
  • 2:27 PM