Sea-air CO2 fluxes along the Brazilian continental margin.
Measurements of the marine carbonate system on tropical and subtropical continental margins are poorly distributed in space and time, with many uncertainties persisting regarding the role of carbon exchanges at the ocean-atmosphere interface in these areas. To calculate sea-to-air CO2 fluxes in Mari...
por Portal Padrão
publicado
07/08/2023
3:45 PM
Spatial inequalities in access to safe drinking water in an upper-middle-income country: a multi-scale analysis of Brazil.
Access to drinking water is recognized as a human right, meaning that it is necessary to guarantee its universal and equitable access. Since analyzing only the average access rates to drinking water may obscure inequalities, studies have adapted socioeconomic inequalities indices to assess dispariti...
por Portal Padrão
publicado
07/08/2023
3:08 PM
Dinâmica da paisagem e fragmentação de ecossistemas em três bacias hidrográficas na Amazônia Oriental entre 1985 e 2019.
O Nordeste Paraense sofreu profundas mudanças no decorrer dos seus ciclos de ocupação. Nessa região, a conversão de floresta para outras classes de uso e cobertura da terra ocorre há centenas de anos. Com o advento do Sensoriamento Remoto, é possível quantificar essas mudanças. Nesse senti...
por Portal Padrão
publicado
07/08/2023
2:56 PM
Participatory pathways to the Sustainable Development Goals: inviting divergent perspectives through a cross-scale systems approach.
The United Nations Sustainable Development Goals (SDGs) include social and ecological goals for humanity. Navigating towards reaching the goals requires the systematic inclusion of perspectives from a diversity of voices. Yet, the development of global sustainability pathways often lacks perspective...
por Portal Padrão
publicado
07/08/2023
2:49 PM
Impacts of climate change on the potential distribution of epiphytic cacti in the Caatinga biome, Brazil.
The Caatinga biome is the largest dry tropical forest region in South America as well as one of the most vulnerable regions in the world to the climate changes forecast for this century. Climate forecasts for the biome include increased air temperature, reduced rainfall and aridization. This biome d...
por Portal Padrão
publicado
07/08/2023
2:47 PM
Impact of land tenure on deforestation control and forest restoration in Brazilian Amazonia.
This study examines how land tenure constrains Brazils ability to meet its deforestation control and forest restoration goals in its Amazonia biome. Our findings are based on an updated assessment of land tenure and land use in the region. Between 2019 and 2021, 44% of deforestation in Amazonia occu...
por Portal Padrão
publicado
07/08/2023
2:45 PM
Comparação entre os modelos digitais de terreno gerados por radar em banda P e LiDAR na Amazônia, um estudo de caso no Amapá (Brasil).
The Digital Terrain Model (DTM) is an important product used in geosciences, but its extraction in dense forest areas is still a challenge. One of the major difficulties in extracting a DTM via remote sensors is in dense forest areas, as the generated information becomes degraded due to the fact tha...
por Portal Padrão
publicado
07/08/2023
2:39 PM
Using simulated GEDI waveforms to evaluate the effects of beam sensitivity and terrain slope on GEDI L2A relative height metrics over the Brazilian Amazon Forest.
The vertical structure of forests provides important parameters for estimating aboveground biomass (AGB) and it can be measured by lidar sensors. The Global Ecosystem Dynamics Investigation (GEDI) full-waveform lidar sensor collects data systematically over the Earths surface from the International ...
por Portal Padrão
publicado
04/08/2023
4:41 PM
Genetic viability and habitat suitability of the critically endangered southern muriqui (Brachyteles arachnoides) in the Atlantic Forest’s fragmented landscapes under land use and climate change scenarios.
The joint effects of climate change and landscape fragmentation to the genetic viability of isolated populations has barely been addressed for the Atlantic Forest fauna. Therefore, this work explored the potential habitat suitability for the southern muriqui (Brachyteles arachnoides), by modeling cl...
por Portal Padrão
publicado
04/08/2023
4:28 PM
Current policies are insufficient to protect or restore Brazil’s cost-effective conservation priority zones.
In Brazil, conservation priority zones, in spite of their key role in preserving natural vegetation and its environmental resources are frequently located outside the country's public network of protected areas (PAs). Here we present the first study on land-use impacts inside Brazil's unprotected (i...
por Portal Padrão
publicado
04/08/2023
4:07 PM
Upward leaders initiated from instrumented lightning rods during the Approach of a downward leader in a cloud-to-ground flash.
In this paper we analyze electric-field and current measurements of upward leaders induced by a downward negative lightning flash that struck a residential building. The attachment process was recorded by two high-speed cameras running at 37,800 and 70,000 images per second and the current measured...
por Portal Padrão
publicado
04/08/2023
4:01 PM
Accurate species distribution models: minimum required number of specimen records in the Caatinga biome.
Species distribution models (SDMs) are one of the most widely used tools to predict areas with potential for occurrence of native, invasive and endangered species, based on current and future environmenal and climate conditions. Despite their global use, evaluating the accuracy of SDMs based only on...
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