A5035868033- Atmospheric chemistry and aerosols
- Cryospheric studies and observations
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Maritime Transport Emissions and Efficiency
- Fire effects on ecosystems
- Geochemistry and Geologic Mapping
- COVID-19 epidemiological studies
- Flood Risk Assessment and Management
- Geochemistry and Elemental Analysis
- Atmospheric aerosols and clouds
- Microplastics and Plastic Pollution
- Soil erosion and sediment transport
- Plant Physiology and Cultivation Studies
- Air Quality and Health Impacts
- Forest ecology and management
- Microbial Community Ecology and Physiology
- Landslides and related hazards
- Geological formations and processes
- Land Use and Ecosystem Services
- Urban Green Space and Health
- Arctic and Antarctic ice dynamics
- Nuts composition and effects
- Polar Research and Ecology
- Marine and coastal ecosystems
Universidade do Estado do Rio de Janeiro
2011-2024
Goddard Space Flight Center
2023
Science Systems and Applications (United States)
2023
Abstract The melting of tropical glaciers provides water resources to millions people, involving social, ecological and economic demands. At present, these reservoirs are threatened by the accelerating rates mass loss associated with modern climate changes related greenhouse gas emissions ultimately land use/cover change. Until now, effects change on Andean South America through biomass burning activities have not been investigated. In this study, we quantitatively examine hypothesis that...
The Pantanal natural region in South America is the largest wetland worldwide. Due to floods and a diverse lithology, this area exhibits high plant animal biodiversity levels encompasses more than 185,000 km 2 . In 2020, experienced worst recorded fire episode history. Hundreds of thousands hectares burned, threatening habitats corresponding ecosystem functions. reached regions never burned before, including national conservation units. Although federal authorities have blamed climate change...
Carbonaceous aerosols can affect climate, especially particles containing black carbon (BC). BC originated from the incomplete combustion of fossil fuel and biomass, which heat atmosphere increase ice melting, but little is known about sources to Antarctica. We quantified contribution distant origin (biomass burning) local emissions (fossil fuel) atmospheric concentration in King George Island (Antarctic Peninsula) Southern Ocean. examine concentrations using a multi-wavelength Aethalometer...
Refractory black carbon (rBC) has great potential to increase melting when deposited on snow and ice surfaces. Previous studies attributed sources impacts of rBC in the northern Antarctic Peninsula region by investigating long-range atmospheric transport from South Hemisphere biomass burning industrial regions or assessing local tourism research activities. We used high-resolution measurements refractory a firn core collected near tip Peninsula, as well Modern-Era Retrospective Analysis for...
Most goods in the world are transported by ships, which powered fossil fuels and responsible for atmospheric emissions. This study carries out an evaluation of particulate matter (PM) atmosphere Guanabara Bay, Rio de Janeiro, Brazil. It involves using a MOUDI (Micro-Orifice Uniform Deposit Impactor) cascade impactor, followed solvent extraction subsequent chemical analysis gas chromatography, determination anthracene (ANT), benzo(a)anthracene (BaA), benzo(b)fluoranthene (BbF),...
The Hunga Tonga-Hunga/Hunga-Ha'apai eruption on January 15, 2022 sent off a plume of ash material up to the stratosphere and triggered meteotsunami barometric pressure pulse that rippled through atmosphere oceans all around world. nature volcanic event its global impacts oceans, atmosphere, lithosphere cryosphere are matter debate. Here we present first overview time travel sound atmospheric wave Antarctic continent based in situ measurements, which represented unique observed polar ice...
Abstract Mass movements and floods triggered by rainstorms are considered some of the most serious environmental problems quite often able to cause great disasters in large tropical cities. This has been occurring due anthropic activities which change natural drainage stability slope urban areas. However, lower monthly rainfalls occur with high frequency can also mass floods. The direct indirect effects less intense but continuous rainfall mainly affect privileged communities, occupy areas...
Abstract Since the early 1980s, Antarctic environment has served as a natural field laboratory for researchers to investigate effects of stratospheric ozone depletion, which resulted in increased surface ultraviolet radiation levels. However, its effective threats still present gaps. We report new pieces evidence impacting West Antarctica sea salt aerosols. Salt aerosols, particularly Southern Ocean Sea, play an important role radiative earth balance. To disclose molecular details we used...
Aerosols have implications to climate and biogeochemical cycles in the global oceans. At sites under indirect influence of dust emitted by Patagonian semi-desert, a debate exists on potential fertilization effects iron enriched aerossol. Considering this subject we conducted measurements aerosols optical properties using Microtops II sun photometer access aerosol size distributions other intrinsic oversea from Atlantic Southern mid-latitudes Antarctica. Oceanographic cruises were developed...
Intense and constant anthropic interventions transform extensive forest landscapes into mosaics of disturbed or degraded ecosystems. These ecosystems can restore themselves spontaneously, depending on the attributes offered by physical environment their capacity for resilience. This study’s objectives were identification plant formations in a conservation unit variables which favor spontaneous restoration processes landscape. divided classes using ArcGIS 10 analyzed through Principal...
For many underdeveloped countries, strategies implemented by social communities allied to scientific knowledge may be a rote attenuate the rapid spread of Covid-19 cases and allow services population.This work presents joint effort collaboration between scientists underserved community groups from Brazilian slum/Santa Marta in Rio de Janeiro City fight against Covid-19.Measurements contamination air near ground georeferencing data infected people were regressed with sanitization activities...
ISHS I International Symposium on Grapevine Growing, Commerce and Research INFLUENCE OF ELEVATION AND SLOPE EXPOSURE UPON PRODUCTIVITY MUST QUALITY 'TOURIGA NACIONAL' (SUBREGION DOURO SUPERIOR)
Abstract The Antarctic environment has been used as a natural field laboratory to investigate the impacts of enhanced UV-B radiation over polar terrestrial biota, marine life, and cryosphere. increased levels occur due stratospheric ozone depletion detected since early 80s’ decade. real dimension threat environments atmospheric chemistry remains uncertain. This work presents new pieces evidence this impact on individual aerosol particles sampled in West Antarctica, using synchrotron-based...
Abstract Objectives For many underdeveloped countries, strategies implemented by social communities allied to scientific knowledge may be a rote attenuate the rapid spread of Covid-19 cases and allow services population. This work presents joint effort collaboration between scientists underserved community groups from Brazilian slum/Santa Marta in Rio de Janeiro City fight against Covid-19. Measurements contamination air near ground, georeferencing data infected people, were regressed with...