Evaluation of Soil Microbial and Enzymatic Activity in Ecosystems in a Coastal Region of Brazil.
The enormous soil carbon pool stored by mangroves depends upon microbial respiratory activities and enzymes associated with carbon breakdown in soils. Our hypothesis is that increased microbial activity leads to elevated carbon breakdown. To prove this, we measured microbial respiratory and enzyme a...
por Portal Padrão
publicado
10/07/2024
2:05 PM
Two decades of clear-cutting threats in the Brazilian Amazonian protected areas around the Jirau, Santo Antônio, and Belo Monte large dams.
Deforestation rates in the Amazon have markedly increased in the last few years, affecting non-protected and protected areas (PAs). Brazil is a hotspot of Protected Area Downgrading, Downsizing, and Degazettement (PADDD) events, with most events associated with infrastructure projects. Despite the t...
por Portal Padrão
publicado
10/07/2024
2:03 PM
Urban Heat Island Assessment in the Northeastern State Capitals in Brazil Using Sentinel-3 SLSTR Satellite Data.
The lack of a solid methodology defining urban and non-urban areas has hindered accurately estimating the Surface Urban Heat Island (SUHI). This study addresses this issue by using the official national urban areas limit together with a surrounding areas classification to define three different refe...
por Portal Padrão
publicado
10/07/2024
2:01 PM
Partitioning of water vapor and CO 2 fluxes and underlying water use efficiency evaluation in a Brazilian seasonally dry tropical forest (Caatinga) using the Fluxpart model.
The Fluxpart partitioning model was employed to assess transpiration, photosynthesis and evaporation, respiration based exclusively through high-frequency eddy covariance (EC) data. The model was implemented across three sites with two vegetation cover conditions (dense and sparse) during the drough...
por Portal Padrão
publicado
10/07/2024
1:59 PM
DeepWealth: A generalizable open-source deep learning framework using satellite images for well-being estimation.
Measuring socioeconomic indices at the scale of regions or countries is required in various contexts, in particular to inform public policies. The use of Deep Learning (DL) and Earth Observation (EO) data is becoming increasingly common to estimate specific variables like societal wealth. This paper...
por Portal Padrão
publicado
10/07/2024
1:58 PM
Proposal of an Agricultural Vulnerability Stochastic Model for the Rural Population of the Northeastern Region of Brazil.
Agriculture is the worlds main economic activity. According to the Intergovernmental Panel on Climate Change, this activity is expected to be impacted by drought. In the Northeast region of Brazil (NEB), most agricultural activity is carried out by small rural communities. Local socio-economic data ...
por Portal Padrão
publicado
10/07/2024
1:14 PM
Uso de radar meteorológico para a avaliação das variáveis polarimétricas associadas a descargas atmosféricas no leste da Amazônia.
A compreensão da microfísica de nuvens associada a tempestades severas com grande incidência de descargas atmosféricas pode servir como base científica para o desenvolvimento de sistemas de alerta para a proteção de vidas e equipamentos expostos a céu aberto. Neste trabalho, foram avaliadas ...
por Portal Padrão
publicado
10/07/2024
1:12 PM
State-of-the-Art and Framework for Identifying Urban Patterns by Remote Sensing Data.
The increase in the spatial resolution of satellite imagery and the greater distribution of data have enabled the use of remote sensing for urban studies. However, there is still a lack of databases and cartographic publications for cities in the Brazilian Amazon. Thus, the following questions guide...
por Portal Padrão
publicado
10/05/2024
11:34 AM
Flood-prone areas based on physiographic indices and multi-criteria assessment for the basins of Ubatuba, on the mountainous North Coast of São Paulo State, Brazil.
The municipality of Ubatuba, São Paulo State, Southeast Brazil, is known for its strong orographic rainfall as a result of moisture fronts in the Atlantic Ocean, morphological structure, and abrupt relief of Serra do Mar. These conditioning combinations reinforce the occurrence of natural disasters...
por Portal Padrão
publicado
10/05/2024
11:31 AM
Greening and Water Use Eciency during a period of high frequency of droughts in the Brazilian semi-arid.
A discussion that has occurred in the scientific community is that despite the increase in the frequency of droughts, the semi-arid world may be increasing the density of vegetation due to fertilization by the increase in atmospheric CO2, a phenomenon called greening. Through this study, we sought t...
por Portal Padrão
publicado
10/05/2024
11:29 AM
A mathematical programming approach for downscaling multi-layered multi-constraint land-use models.
Land-use and land-cover change (LULCC) models are important tools for environmental policy planning. LULCC models are frequently constrained to the generation of projections at a specific resolution. However, subsequent studies or models may require finer resolutions. In this work, a downscaling met...
por Portal Padrão
publicado
10/05/2024
11:26 AM
Evolução da capacidade institucional da RMSP em relação às mudanças climáticas.
Este artigo propõe uma metodologia de análise das capacidades institucionais de enfrentamento das mudanças climáticas em âmbito municipal e metropolitano. A metodologia foi aplicada na Região Metropolitana de São Paulo (RMSP), utilizando os dados relativos a Meio Ambiente e Gestão de Riscos,...
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