Balanço de radiação no Pantanal Sul Mato-grossense durante a estação seca
Este trabalho apresenta a análise das componentes do balanço de radiação à superfície sobre o Pantanal Sul Mato-grossense, a partir de medidas experimentais coletadas durante a estação seca, em setembro de 1999. Neste período, as componentes do balanço de radiação mostraram um ciclo diur...
por Portal Padrão
publicado
22/08/2013
2:25 PM
Observed and projected changes in rainfall extremes in the metropolitan area of São Paulo
Changes in rainfall extremes and flooding are becoming more frequent in many countries, particularly in large cities where people and assets are concentrated. In the Metropolitan Area of the city of São Paulo (MASP) region, heavy or extreme precipitation events have important effects on society. Fl...
por Portal Padrão
publicado
22/08/2013
2:23 PM
Tropical South America east of the Andes
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por Portal Padrão
publicado
22/08/2013
2:22 PM
Recent extremes of drought and flooding in Amazonia: vulnerabilities and human adaptation
The present study focuses on the impacts of extreme drought and flooding situations in Amazonia, using level/discharge data from some rivers in the Amazon region as indicators of impacts. The last 10 years have featured various once in a century droughts and floods in the Amazon basin, which have af...
por Portal Padrão
publicado
22/08/2013
2:16 PM
Where do winds come from? a new theory on how water vapor condensation influences atmospheric pressure and dynamics
Phase transitions of atmospheric water play a ubiquitous role in the Earth's climate system, but their direct impact on atmospheric dynamics has escaped wide attention. Here we examine and advance a theory as to how condensation influences atmospheric pressure through the mass removal of water from ...
por Portal Padrão
publicado
22/08/2013
2:12 PM
The key physical parameters governing frictional dissipation in a precipitating atmosphere
Precipitation generates small-scale turbulent air flows-the energy of which ultimately dissipates to heat. The power of this process has previously been estimated to be around 2-4Wm-2 in the tropics: a value comparable in magnitude to the dynamic power of global atmospheric circulation. Here it is s...
por Portal Padrão
publicado
22/08/2013
2:11 PM
The chemistry CATT BRAMS model (CCATT BRAMS 4.5): a regional atmospheric model system for integrated air quality and weather forecasting and research
The Coupled Chemistry Aerosol-Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CCATTBRAMS, version 4.5) is an online regional chemical transport model designed for local and regional studies of atmospheric 5 chemistry from surface to the lower stratos...
por Portal Padrão
publicado
22/08/2013
2:09 PM
The contributions of regional knowledge networks researching environmental changes in Latin America and Africa: a synthesis of what they can do and why they can be policy relevant
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por Portal Padrão
publicado
22/08/2013
2:08 PM
Climategate: the role of the social sciences
As has been widely documented, lavishly funded media campaigns by political and financial elites and corporations with vested interests against climate policy are a central instigator of the climate backlash and a threat to democratic processes. However, it would behoove the environmental coalition,...
por Portal Padrão
publicado
22/08/2013
2:06 PM
Anatomy of dissent: a cultural analysis of climate skepticism
Based on findings from ethnographic analysis of U.S. climate scientists, this article identifies largely unrecognized sociocultural dimensions underpinning differences in scientists' perceptions of anthropogenic climate change. It argues that culturally laden tensions among scientists have influence...
por Portal Padrão
publicado
22/08/2013
2:04 PM
Integração de imagens NOAA/AVHRR: Rede de cooperação para monitoramento nacional da safra de soja
An early assessment of national crop development conditions while the plants are still in the fields is highly needed to calculate correctly projections for decision-making and policies related to government planning andfood security. The aim of this study was to evaluate the suitability of NOAA /AV...
por Portal Padrão
publicado
22/08/2013
1:58 PM
Inhalable particulate matter characterization in a medium-sized urban region in Brazil (São José dos Campos Town) – Part I: morphology
In this study, the concentration and morphological characteristics of inhalable particulate material (PM10) were evaluated and associated with climatic conditions. The mean annual concentration was 11.0 µg m−3, varying between 0,647 µg m−3 and 36.8 µg m−3. Wind speed has a higher influence ...
Redes Sociais