Mapeamento da Vegetação da Caatinga a partir de Dados Ópticos de Observação da Terra – Oportunidades e Desafios
O bioma Caatinga representa cerca de 10% do território nacional e tem uma população estimada em 28 milhões de habitantes. Sua vegetação arbóreo-arbustiva, adaptada às condições de semiaridez, exerce um papel fundamental na manutenção do balanço hidrológico, na alimentação da matriz e...
por Portal Padrão
publicado
25/04/2020
8:35 AM
Urban expansion and its impact on water security: The case of the Paraíba do Sul River Basin, São Paulo, Brazil.
Increasing demand for water is one of the most challenging problems that human societies face today and has encouraged new studies to examine water security and water management. Seeking to discuss this important issue in the Brazilian context, we analyzed the impacts of urban expansion on water sec...
por Portal Padrão
publicado
17/04/2020
12:00 PM
Mapping data gaps to estimate biomass across Brazilian Amazon forests.
Background: Tropical forests play a fundamental role in the provision of diverse ecosystem services, such as biodiversity, climate and air quality regulation, freshwater provision, carbon cycling, agricultural support and culture. To understand the role of forests in the carbon balance, aboveground ...
por Portal Padrão
publicado
14/04/2020
2:09 PM
Can transnational corporations leverage systemic change towards a ‘sustainable’ future?.
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por Portal Padrão
publicado
14/04/2020
2:07 PM
Success, innovation and challenge: school safety and disaster education in South America and the Caribbean.
Authors discuss school safety and disaster education in Brazil, Colombia, Cuba, the Dominican Republic, Jamaica and Puerto Rico. Case studies explore work to increase understanding of natural hazards and disaster preparedness. Puerto Rico offers innovative examples of reflection on memories of Hurri...
por Portal Padrão
publicado
14/04/2020
1:59 PM
“What is a sociologist doing here?” an unconventional people-centered approach to improve warning implementation in the sendai framework for disaster risk reduction.
The Sendai Framework for Disaster Risk Reduction 2015-2030 recommends several actions for early warning systems (EWSs). However, there is a lack of information about their means of implementation. This article used institutional ethnography to analyze the 2012-2018 implementation of a national warni...
por Portal Padrão
publicado
14/04/2020
1:57 PM
Feedback between drought and deforestation in the Amazon.
Deforestation and drought are among the greatest environmental pressures on the Amazon rainforest, possibly destabilizing the forest-climate system. Deforestation in the Amazon reduces rainfall regionally, while this deforestation itself has been reported to be facilitated by droughts. Here we quant...
por Portal Padrão
publicado
13/04/2020
2:34 PM
Comparison of cloud cover detection algorithms on sentinel-2 images of the Amazon tropical forest.
Tropical forests regulate the global water and carbon cycles and also host most of the worlds biodiversity. Despite their importance, they are hard to survey due to their location, extent, and particularly, their cloud coverage. Clouds hinder the spatial and radiometric correction of satellite image...
por Portal Padrão
publicado
05/04/2020
1:41 PM
A climate-change vulnerability and adaptation assessment for Brazil’s protected areas.
Brazil hosts the largest expanse of tropical ecosystems within protected areas (PAs), which shelter biodiversity and support traditional human populations. We assessed the vulnerability to climate change of 993 terrestrial and coastal-marine Brazilian PAs by combining indicators of climatic-change h...
por Portal Padrão
publicado
05/04/2020
11:51 AM
Feedback between drought and deforestation in the Amazon
Deforestation and drought are among the greatest environmental pressures on the Amazon rainforest, possibly destabilizing the forest-climate system. Deforestation in the Amazon reduces rainfall regionally, while this deforestation itself has been reported to be facilitated by droughts. Here we quant...
por Portal Padrão
publicado
05/04/2020
11:41 AM
Mapping Atlantic rainforest degradation and regeneration history with indicator species using convolutional network.
The Atlantic rainforest of Brazil is one of the global terrestrial hotspots of biodiversity. Despite having undergone large scale deforestation, forest cover has shown signs of increases in the last decades. Here, to understand the degradation and regeneration history of Atlantic rainforest remnants...
por Portal Padrão
publicado
17/03/2020
12:00 PM
Seasonal changes of the South American monsoon system during the Mid‑Holocene in the CMIP5 simulations.
The South American Monsoon System (SAMS) is a major climatic feature of South America, and its domain extends from Amazon to La Plata basin. The SAMS region is vulnerable to variations of climate and precipitation patterns, which could impact economic activities and lead to potential societal conseq...
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