Atmospheric aerosol influence on the Brazilian solar energy assessment: Experiments with different horizontal visibility bases in radiative transfer model
The radiative transfer model BRASIL-SR is used by Brazilian Institute for Space Research for the assessment of the solar irradiation in Brazil. The model parameterizes the influence of aerosols in the solar radiation transmittance using climate averages of horizontal visibility, which does not repre...
por Portal Padrão
publicado
20/05/2016
2:31 PM
The effects of Sao Paulo urban heat island on lightning activity: decadal analysis (1999-2009)
Eleven years of lightning data from the Brazilian Integrated National Lightning Detection Network were used to analyze the effects of the urban heat island (UHI) of Sao Paulo on lightning activity, extending the investigation of previous works. Cloud-To-ground lightning data were analyzed in both sp...
por Portal Padrão
publicado
20/05/2016
2:10 PM
Land use change emission scenarios: anticipating a forest transition process in the Brazilian Amazon
Following an intense occupation process that was initiated in the 1960s, deforestation rates in the Brazilian Amazon have decreased significantly since 2004, stabilizing around 6000 km2 yr-1 in the last 5 years. A convergence of conditions contributed to this, including the creation of protected are...
por Portal Padrão
publicado
20/05/2016
1:47 PM
Calibration of the maximum carboxylation velocity (Vcmax) using data mining techniques and ecophysiological data from the Brazilian semiarid region, for use in Dynamic Global Vegetation Models.
The semiarid region of northeastern Brazil, the Caatinga, is extremely important due to its biodiversity and endemism. Measurements of plant physiology are crucial to the calibration of Dynamic Global Vegetation Models (DGVMs) that are currently used to simulate the responses of vegetation in face o...
por Portal Padrão
publicado
20/04/2016
4:07 PM
On the impact of haze on the yield of photovoltaic systems in Singapore
Anthropogenic haze, caused at least in parts by forest and agricultural land clearing fires in Sumatra (Indonesia), is occasionally causing air quality issues in Singapore, located 150-300 km east of the majority of these "hot spots". The resulting air pollution partially blocks sunlight from reachi...
por Portal Padrão
publicado
20/04/2016
3:55 PM
Dry-season greening of Amazon forests
...
por Portal Padrão
publicado
20/03/2016
4:18 PM
Extreme flood events in the Bolivian Amazon wetlands
Study region: The Amazonian wetlands of Bolivia, known as the Llanos de Moxos, are believed to play a crucial role in regulating the upper Madeira hydrological cycle, the most important southern tributary of the Amazon River. Because the area is vast and sparsely populated, the hydrological function...
por Portal Padrão
publicado
20/03/2016
4:02 PM
Segurança alimentar e mudanças ambientais globais: uma análise no contexto da sociedade brasileira.
A agricultura participa tanto das causas como das consequências das mudanças ambientais globais que, por sua vez, podem acentuar a vulnerabilidade da segurança alimentar da sociedade. Por meio de uma visão holística do sistema alimentar, este trabalho traz uma revisão narrativa da literatura, ...
por Portal Padrão
publicado
20/03/2016
4:01 PM
Publicações da Biogeoquimica Ambiental
A linha de pesquisa Biogeoquímica Ambiental conta com o Laboratório de Pesquisa em Biogeoquímica Ambiental – LAPBio para realização dos estudos e pesquisas.
Missão:
Contribuir para a detecção e atribuição de causas de mudanças ambientais em escalas regionais e globais, cooperando pa...
por Portal Padrão
publicado
14/03/2016
2:35 PM
Impacts of future deforestation and climate change on the hydrology of the Amazon Basin: a multi-model analysis with a new set of land-cover change scenarios.
Deforestation in Amazon is expected to decrease evapotranspiration (ET) and to increase soil moisture and river discharge under prevailing energy-limited conditions. The magnitude and sign of the response of ET to deforestation depend both on the magnitude and regional patterns of land-cover change ...
por Portal Padrão
publicado
08/03/2016
9:23 AM
Some characteristics and impacts of the drought and water crisis in southeastern Brazil during 2014 and 2015
Since the austral summer of 2014 southeastern Brazil has been experiencing one of the most severe droughts in decades. This rainfall deficiency has generated water shortages and a water crisis that have affected population and local economies in the metropolitan region of Sao Paulo, the largest mega...
por Portal Padrão
publicado
20/02/2016
3:56 PM
Deforestation scenarios for the Bolivian lowlands
Tropical forests in South America play a key role in the provision of ecosystem services such as carbon sinks, biodiversity conservation, and global climate regulation. In previous decades, Bolivian forests have mainly been deforested by the expansion of agricultural frontier development, driven by ...
Redes Sociais