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
06/08/2017
2:50 PM
Previsões de cheias extremas nos horizontes sazonais e de curto e médio prazos na bacia do rio madeira: estudo de caso da enchente de 30 de março de 2014 em Porto Velho.
A previsão de níveis de rios é um elemento importante de um sistema de alertas de desastres associados com eventos hidrológicos extremos. Neste trabalho é apresentado o uso de previsões de tempo de curto e médio prazo e de previsões climáticas sazonais por conjunto para monitoramento de che...
por Portal Padrão
publicado
06/08/2017
2:48 PM
O mercado brasileiro da energia eólica, impactos sociais e ambientais.
Atualmente a energia eólica está mostrando destaque no cenário energético brasileiro por ser uma fonte energética renovável que apresenta elevada disponibilidade no território e cujo aproveitamento baixos níveis de emissão de gases de efeito estufa. Em razão desses aspectos, a energia eól...
por Portal Padrão
publicado
06/08/2017
1:26 PM
Neogene sharks and rays from the Brazilian ‘Blue Amazon’
The lower Miocene Pirabas Formation in the North of Brazil was deposited under influence of the proto-Amazon River and is characterized by large changes in the ecological niches from the early Miocene onwards. To evaluate these ecological changes, the elasmobranch fauna of the fully marine, carbonat...
por Portal Padrão
publicado
05/08/2017
3:38 PM
Croton blanchetianus modulates its morphophysiological responses to tolerate drought in a tropical dry forest.
An understanding of variations in morphophysiological leaf traits of plant models in dry tropical forests is essential for quantifying C fluxes from forest ecosystems in response to climate changes. The present study evaluated the influences of seasonal rainfall and different light conditions on the...
por Portal Padrão
publicado
08/07/2017
11:05 AM
Brazilian scientific mobility program – science without borders: preliminary results and perspectives.
The Brazilian Scientific Mobility Program - Science without Borders (SwB) - saw the concession of over 101 thousand scholarships for Brazilian STEM students and education professionals to attend universities worldwide. As the first phase of this program ends, it is time to take a first look at its i...
por Portal Padrão
publicado
08/07/2017
10:58 AM
Vulnerability of agricultural production in the brazilian semi-arid: an empirical approach including risk.
Agricultural production risk is getting increasing attention in the science and the policy domain due to its strong connection with food security and its potential to trigger systemic risks. Particularly in semi-arid regions, weather and environmental conditions can seriously affect agricultural pro...
por Portal Padrão
publicado
08/07/2017
10:56 AM
O Novíssimo Atlas Brasileiro de Energia Solar.
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por Portal Padrão
publicado
08/07/2017
10:55 AM
A globally deployable strategy for co-development of adaptation preferences to sea-level rise: the public participation case of Santos, Brazil.
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por Portal Padrão
publicado
08/07/2017
10:53 AM
An integrated framework to analyze local decision making and adaptation to sea level rise in coastal regions in Selsey (UK), Broward County (USA), and Santos (Brazil)
One of the clear signals of the ongoing climate change is sea level rise (SLR). Normal oceanic tides superimposed on a rising sea level and coastal flooding will affect many coastal communities. An international collaboration among Brazil, the United Kingdom, and the United States was designed to ev...
por Portal Padrão
publicado
08/07/2017
10:45 AM
Kinetic energy generation in heat engines and heat pumps: the relationship between surface pressure, temperature and circulation cell size.
The pattern and size of the Earths atmospheric circulation cells determine regional climates and challenge theorists. Here the authors present a theoretical framework that relates the size of meridional cells to the kinetic energy generation within them. Circulation cells are considered as heat engi...
por Portal Padrão
publicado
08/07/2017
10:17 AM
Quantifying the global atmospheric power budget.
The power of atmospheric circulation is a key measure of the Earths climate system. The mismatch between predictions and observations under a warming climate calls for a reassessment of how atmospheric power W is defined, estimated and constrained. Here we review published formulations for W and sho...
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