A5019630437- Hydropower, Displacement, Environmental Impact
- Mining and Resource Management
- Coastal wetland ecosystem dynamics
- Coastal and Marine Dynamics
- Conservation, Biodiversity, and Resource Management
- Coral and Marine Ecosystems Studies
- Remote Sensing and LiDAR Applications
- Aeolian processes and effects
- Marine and fisheries research
- Coastal and Marine Management
Universidade Federal de Santa Catarina
2023
Universidade Federal do Pará
2021
Aquaculture and salt-culture are relevant economic activities in the Brazilian Coastal Zone (BCZ). However, automatic discrimination of such from other water-related covers/uses is not an easy task. In this sense, convolutional neural networks (CNN) have advantage predicting a given pixel’s class label by providing as input local region (named patches or chips) around that pixel. Both nature semantic segmentation capability provide U-Net classifier with ability to access “context domain”...
Mining has played an important role in the economies of South American countries. Although industrial mining prevails most countries, expansion garimpo activity increased substantially. Recently, Brazil exhibited two moments dominance over mining: 1989–1997 and 2019–2022. While sites occupied ~ 360 km2 1985 but to 1800 2022, a 5-fold increase, area by 1200%, from 218 2627 2022. More than 91% this is concentrated Amazon. Where almost 40% are five years old or younger, proportion increases 62%...
<title>Abstract</title> Mining has played a significant role in the economy of South American countries for centuries. Although industrial mining become predominant most countries, expansion <italic>garimpos</italic>, here referred to as mechanized mining, increased substantially. This type mainly related gold, is not only harmful human health due usage high amounts mercury (Hg), but its trails disastrous environmental and social changes are equally nefarious throughout terrestrial...
Hypersaline tidal flats are plane areas usually related to mangrove forests, acting as guard and buffer against rising sea levels, maintainer of regional biodiversity. Such primarily impacted by anthropogenic natural activities, such sea-salt extraction pollution, so identifying monitoring them is an important challenging task. The present work uses a U-shaped Convolutional Neural Network architecture systematically classify formations over Landsat imagery. A large dataset containing data...
Brazilian beaches play an essential role in maintaining human populations and conserving biodiversity, being primarily impacted by anthropogenic natural activities, such as tourism, pollution, sea-level variations. The present work uses the Random Forest (RF) algorithm to automatically systematically classify sandy coastal bodies "beaches or dunes" from 1985 2019 throughout Coastal Zone (BCZ). areas covered dunes reduced ∼ 714 km <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...