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Extreme Rainfall and Hydro-Geo-Meteorological Disaster Risk in 1.5, 2.0, and 4.0°C Global Warming Scenarios: An Analysis for Brazil.

With the inclusion of demographic characteristics of the population living in vulnerable areas, a combination of empirical and climate models was used to project changes to climate and in hydro-geo-meteorological disasters in Brazil. This study investigated the effect of extreme rainfall changes and...
  • por Portal Padrão
  • publicado
  • 07/07/2021
  • 1:09 PM

Smoldering characteristics of high bulk density peat.

Low-density peats from many countries have long been studied by many authors. They are mostly forest and moss peats. Different peat types, from different locations in the world, may present degradation behavior that differs significantly. Bulk density, which is one the most important physical parame...
  • por Portal Padrão
  • publicado
  • 07/07/2021
  • 11:03 AM

Fatores associados à distribuição da temperatura das superfícies em áreas urbanas: zonas climáticas locais e características espectrais.

O aquecimento global torna necessário o benchmarking do tecido urbano para desenvolver políticas que possam promover a resiliência urbana ao calor. O objetivo desta pesquisa é identificar padrões do tecido urbano que produzem a retroalimentação negativa do sistema climático urbano naturalmen...
  • por Portal Padrão
  • publicado
  • 07/07/2021
  • 10:15 AM

When the whole is less than the sum of all parts – Tracking global-level impacts of national sustainability initiatives.

The United Nations Sustainable Development Goals (SDGs) are described as integrated and indivisible, where sustainability challenges must be addressed across sectors and scales to achieve global-level sustainability. However, SDG monitoring mostly focuses on tracking progress at national-levels, for...
  • por Portal Padrão
  • publicado
  • 07/07/2021
  • 10:14 AM

Hybrid power generation for increasing water and energy securities during drought: Exploring local and regional effects in a semi-arid basin.

Reservoirs of hydropower plants (HPP) can amend water, energy, and food security in semi-arid regions. However, during severe droughts, the priority of energy demand leads to critical conditions of water availability. To reduce water use for energy, one possible measure is the adoption of solar powe...
  • por Portal Padrão
  • publicado
  • 06/07/2021
  • 11:02 AM

Obtaining the daily actual evapotranspiration through remote sensing techniques application in Brazilian Semiarid.

Large volumes of water are released to the atmosphere through evaporation from soil and transpiration from vegetation, constituting evapotranspiration (ET). Estimating the water consumption in vegetated areas is important for the management and rational use of this resource. For this study were proc...
  • por Portal Padrão
  • publicado
  • 06/07/2021
  • 10:58 AM

Assessment of CMIP6 Performance and Projected Temperature and Precipitation Changes Over South America.

We evaluate the performance of a large ensemble of Global Climate Models (GCMs) from the Coupled Model Intercomparison Project Phase 6 (CMIP6) over South America for a recent past reference period and examine their projections of twenty-first century precipitation and temperature changes. The future...
  • por Portal Padrão
  • publicado
  • 06/07/2021
  • 10:19 AM

Phytoplankton community in a tropical estuarine gradient after an exceptional harmful bloom of Akashiwo sanguinea (Dinophyceae) in the Todos os Santos Bay.

The objective of this study was to evaluate variations in the composition and abundance of the phytoplankton community after an exceptional harmful bloom of Akashiwo sanguinea that occurred in Todos os Santos Bay (BTS) in early March, 2007. Samples were collected every ten days, between April, 2007 ...
  • por Portal Padrão
  • publicado
  • 06/07/2021
  • 10:17 AM

Satellite Image Time Series Analysis for Big Earth Observation Data.

The development of analytical software for big Earth observation data faces several challenges. Designers need to balance between conflicting factors. Solutions that are efficient for specific hardware architectures can not be used in other environments. Packages that work on generic hardware and op...
  • por Portal Padrão
  • publicado
  • 07/06/2021
  • 4:24 PM

Too Fine to be Good? Issues of Granularity, Uniformity and Error in Spatial Crime Analysis.

Objectives: Crime counts are sensitive to granularity choice. There is an increasing interest in analyzing crime at very fine granularities, such as street segments, with one of the reasons being that coarse granularities mask hot spots of crime. However, if granularities are too fine, counts may be...
  • por Portal Padrão
  • publicado
  • 07/06/2021
  • 4:04 PM

Improving victimization risk estimation: A geographically weighted regression approach.

Standardized crime rates (e.g., homicides per 100,000 people) are commonly used in crime analysis as indicators of victimization risk but are prone to several issues that can lead to bias and error. In this study, a more robust approach (GWRisk) is proposed for tackling the problem of estimating vic...
  • por Portal Padrão
  • publicado
  • 07/06/2021
  • 4:01 PM

Determining ecosystem functioning in Brazilian biomes through foliar carbon and nitrogen concentrations and stable isotope ratios.

By analyzing 6,480 tree leaf samples from 57 sites within Brazilian biomes, we considered whether vegetation types in terrestrial ecosystems reflect biogeochemical diversity and whether they fit into a leaf economics spectrum (LES). To achieve this, we investigated the relations among leaf carbon (C...
  • por Portal Padrão
  • publicado
  • 07/06/2021
  • 1:11 PM