A5079916531- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Atmospheric aerosols and clouds
- Pulsars and Gravitational Waves Research
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Spectroscopy and Laser Applications
- Relativity and Gravitational Theory
- Astrophysical Phenomena and Observations
- Algebraic and Geometric Analysis
- Particle Accelerators and Free-Electron Lasers
- Meteorological Phenomena and Simulations
- Air Quality Monitoring and Forecasting
- Landfill Environmental Impact Studies
- Municipal Solid Waste Management
- Environmental Sustainability and Education
- Arctic and Antarctic ice dynamics
- Water Quality Monitoring and Analysis
- Aeolian processes and effects
- Fire effects on ecosystems
- Gamma-ray bursts and supernovae
- Plant Water Relations and Carbon Dynamics
- Geophysics and Gravity Measurements
- Forest ecology and management
Universidade Federal do Pará
2013-2024
University of Maryland, Baltimore County
2010-2013
Goddard Space Flight Center
2003-2012
University of Maryland, College Park
2003-2004
AIRS thermal infrared radiance data are used with a fast scattering radiative transfer model to physically retrieve the dust column amount and height over both ocean land. The retrieved optical depths compared against those using visible ultraviolet instruments on A‐Train, while layer heights evaluated lidar data. synergistic use of is explored by constrained CALIPSO retrievals coarse mode particle sizes from PARASOL. Optical correlate well other (R ≥ 0.9) lower land when MODIS Deep Blue OMI...
We present an algorithm for treating mesh refinement interfaces in numerical relativity. detail the behavior of solution near such located strong field regions dynamical black hole spacetimes, with particular attention to convergence properties simulations. In our applications this technique evolution puncture initial data vanishing shift, we demonstrate that it is possible simultaneously maintain second order and extend outer boundary beyond 100M, thereby approaching asymptotically flat...
Abstract. Carbon cycling in the Amazon fundamentally depends on functioning of ecosystems and atmospheric dynamics, which are highly intricate. Few studies have hitherto investigated or measured radiative effects aerosols Cerrado. This study examines solar radiation their net ecosystem exchange (NEE) an area semideciduous tropical forest north Mato Grosso. Our results show that for a relative irradiance (f) 1.10–0.67, decrease incident is associated with reduction NEE. However, average...
The El Niño-Southern Oscillation (ENSO) stands out as the most significant tropical phenomenon in terms of climatic magnitude resulting from ocean–atmosphere interaction. Due to its atmospheric teleconnection mechanism, ENSO influences various environmental variables across distinct scales, potentially impacting spatiotemporal distribution aerosols. Within this context, study aims evaluate relationship between and aerosols entire Legal Amazon during period 2006 2011. Over five-year span,...
Abstract. Atmospheric CO2 retrievals with peak sensitivity in the mid- to lower troposphere from Infrared Sounder (AIRS) have been assimilated into GEOS-5 (Goddard Earth Observing System Model, Version 5) constituent assimilation system for period 1 January 2005 31 December 2006. A corresponding model simulation, using identical initial conditions, circulation, and boundary fluxes was also completed. The analyzed simulated fields are compared surface measurements globally aircraft over North...
Dumps are important anthropogenic sources of greenhouse gas emissions into the atmosphere, mostly CH4. However, few studies on subject have been carried out in Amazon region. Several factors affect production and emission dumps gas. The objective this study was to quantify spatial variation CO2 CH4 an dump try associate relative importance some environmental with fluxes. This open-air metropolitan region Belém, where approximately 11.0 million Mg waste deposited 25 years, which 6.4 organic....
The El Niño-Southern Oscillation (ENSO) stands as the paramount tropical phenomenon of climatic magnitude resulting from ocean-atmosphere interaction. Due to its atmospheric teleconnection mechanism, ENSO wields influence over diverse environmental variables spanning distinct scales, thereby potentially impacting spatiotemporal distribution aerosols. Within this framework, study aims appraise relationship between and aerosols across Legal Amazon during period 2006 2011. Over quinquennium,...
Tropical forests are crucial global climate regulators. They store large amounts of carbon in their living biomass and maintain a delicate biosphere-atmosphere relationship. The cycling the Amazon Basin has been studied due to changes promoted its capacity absorb emit CO2 concentrations globally soil, water, atmosphere. This research seeks contribute by identifying human disturbance (biomass burning) influence on Net Exchange CO2 (NEE) over areas semideciduous forest...
A poluição por odores do aterro é um componente dos poluentes que afetam o meio ambiente humano. Questões e reclamações de foram feitas da mídia, oficiais protestos pessoas moram perto Central Processamento Tratamento Resíduos (CPTR) Marituba ou comumente chamado sanitário Marituba. Este estudo tenta obter feedback das vivem sanitário; para isso foi conduzido questionário aplicado aos moradores entorno em raio 4 km aterro. O envolve uma pesquisa percepção determinar a influência no nível...
We introduce an alternate method for gravitational radiation extraction binary black hole mergers where we do not use a single radius at the intermediate field region but instead whole spherical shell of three-dimensional (3D) data and continue its evolution using linearized (Teukolsky) to final distant radius. implement this Hahndol code 3D evolution, “Lazarus” procedure convert numerical into data. The waveform is compatible with ones obtained from full evolutions some minor variations...
<p>Aerosol particles impact health, ecosystems, and climate, especially when in high concentrations urban environments. Wet deposition is one of the most critical limiting mechanisms particulate matter atmosphere.  This mechanism captures inside clouds (rain-out) or below cloud due to precipitation (washout). In Amazon basin, physical scavenging rates remain unknown many regions. Several studies over last decades have empirically ascertained wet develop local...
Abstract. Atmospheric CO2 retrievals with peak sensitivity in the mid- to lower troposphere from Infrared Sounder (AIRS) have been assimilated into Global Modeling and Assimilation Office (GMAO) constituent assimilation system for period 1 January 2005 31 December 2006. A corresponding model simulation, using identical initial conditions, circulation, boundary fluxes was also completed. The analyzed simulated fields are compared surface measurements globally aircraft over North America....