Our limited understanding of the climate controls on tropical forest seasonality is one of the biggest sources of uncertainty in modeling climate change impacts on terrestrial ecosystems. Combining leaf production, litterfall and climate observations from satellite and ground data in the Amazon fore...
por Portal Padrão
publicado
07/07/2017
10:00 AM
Litterfall mass and nutrient fluxes over an altitudinal gradient in the coastal Atlantic Forest, Brazil.
Litterfall is one of the most important pathways through which nutrients are recycled in the terrestrial biosphere. In tropical soils, which are generally low in essential nutrients such as phosphorus and cations, the flux of nutrients through litterfall is particularly important to sustaining CO2-u...
por Portal Padrão
publicado
07/07/2017
9:55 AM
Meteorological context of the onset and end of the rainy season in Central Amazonia during the GoAmazon 2014/5
The onset and demise of the rainy season in Amazonia are assessed in this study using meteorological data from the GoAmazon experiment, with a focus on the 2014 2015 rainy season. In addition, global reanalyses are also used to identify changes in circulation leading to the establishment of the rain...
por Portal Padrão
publicado
08/06/2017
10:24 AM
Development paradigms contributing to the transformation of the Brazilian Amazon: do people matter?
The Brazilian Amazon is being affected by the new worldwide geopolitical transformation that is tending towards an integrated global economy. In the region environmental considerations have not been adequately incorporated into long-term land use planning and this failure has partly been due to the ...
por Portal Padrão
publicado
07/06/2017
9:57 AM
Perspectives for environmental conservation and ecosystem services on coupled rural–urban systems.
Using a territorial and integrative approach based on ecological and socioeconomic factors, we envision innovative policies and initiatives aiming to reconcile urban economic development with rural conservation and restoration projects. The Paraíba Valley of São Paulo State represents an example o...
por Portal Padrão
publicado
07/06/2017
9:54 AM
Droughts in the Amazon: identification, characterization and dynamical mechanisms associated.
In this study, we used the Standard Precipitation Index (SPI) to identify and to characterize the dry extreme events in the Amazon region. The results showed that the drought of 1998 was the most intense (SPI average equal to −1.69) in the period from 1979 to 2014. However, some papers have charac...
por Portal Padrão
publicado
07/06/2017
9:45 AM
Earth system science frontiers: an early career perspective.
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por Portal Padrão
publicado
06/06/2017
2:47 PM
Lightning attachment process to common buildings
The physical mechanism of lightning attachment to grounded structures is one of the most important issues in lightning physics research, and it is the basis for the design of the lightning protection systems. Most of what is known about the attachment process comes from leader propagation models tha...
por Portal Padrão
publicado
05/06/2017
5:09 PM
Land system science in Latin America: challenges and perspectives.
This article reviews the current status, trends and challenges of land system science in Latin America. We highlight the advances in the conceptualization, analysis and monitoring of land systems. These advances shift from a focus on the relationships between forests and other land uses to include a...
por Portal Padrão
publicado
05/06/2017
3:51 PM
Main ozone-forming VOCs in the city of Sao Paulo: observations, modelling and impacts.
High-ozone concentrations currently represent the main air pollution problem in the city of São Paulo, Brazil. To elucidate the main volatile organic compounds (VOCs), which act as ozone precursors, samples from air quality monitoring stations were evaluated. Thirty-five samples were collected in A...
por Portal Padrão
publicado
05/05/2017
3:43 PM
Extreme floods increase CO2 outgassing from a large Amazonian river.
Large Amazonian rivers are characteristically subject to seasonal floods. We examine how inundation extent affects the partial pressure of carbon dioxide (pCO2) and CO2 outgassing in the Madeira River, a large tributary to the Amazon River. We show data from nine field campaigns performed between 20...
por Portal Padrão
publicado
05/05/2017
3:40 PM
Buffers against inconvenient knowledge: brazilian newspaper representations of the climate-meat link.
Analyzing Brazilian newspapers climate coverage leading up to 2010, this article shows that climate change was framed as an energy problem although energy is a small part of the countrys emissions compared to emissions from land use change and agriculture. Linked to well over half of national emissi...
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