A5052566768- Climate variability and models
- Meteorological Phenomena and Simulations
- Geography and Environmental Studies
- Atmospheric aerosols and clouds
- Environmental and biological studies
- Tropical and Extratropical Cyclones Research
- Precipitation Measurement and Analysis
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Hydrology and Drought Analysis
- Atmospheric Ozone and Climate
- Ocean Waves and Remote Sensing
- Agricultural and Food Sciences
- Cryospheric studies and observations
- Geophysics and Gravity Measurements
- Climate Change and Health Impacts
- Energy, Environment, and Transportation Policies
- Academic Research in Diverse Fields
- Aeolian processes and effects
- Air Quality and Health Impacts
- Solar Radiation and Photovoltaics
- Landslides and related hazards
- Urban Heat Island Mitigation
- Effects of Environmental Stressors on Livestock
Universidade Federal de Alagoas
2007-2025
Radiant Research (United States)
2024
Secretaria de Planejamento e Gestão
2022
Universidade Federal de Campina Grande
2020-2022
Hospital Universitário da Universidade de São Paulo
2018
Universidade de São Paulo
2013-2015
Universidade Federal de São Paulo
2014
Universidade Brasil
2013
Institute of Rural Management Anand
2012
Up with ultrafine aerosol particles Ultrafine (smaller than 50 nanometers in diameter) have been thought to be too small affect cloud formation. Fan et al. show that this is not the case. They studied effect of urban pollution transported into otherwise nearly pristine atmosphere Amazon. Condensational growth water droplets around tiny releases latent heat, thereby intensifying atmospheric convection. Thus, anthropogenic may exert a more important influence on formation processes previously...
One of the least understood aspects in atmospheric chemistry is how urban emissions influence formation natural organic aerosols, which affect Earth's energy budget. The Amazon rainforest, during its wet season, one few remaining places on Earth where transitions between preindustrial and urban-influenced conditions. Here, we integrate insights from several laboratory measurements simulate secondary aerosols (SOA) using a high-resolution chemical transport model. Simulations show that...
This paper aims to identify the circulation associated with Easterly Wave Disturbances (EWDs) that propagate toward Eastern Northeast Brazil (ENEB) and their impact on rainfall over ENEB during 2006 2007 rainy seasons (April–July). The EWDs identification trajectory are analyzed using an automatic tracking technique (TracKH). patterns main features were obtained composite technique. To evaluate TracKH efficiency, a validation was done by comparing number tracked against observed cases from...
Abstract. The Green Ocean Amazon experiment – GoAmazon 2014–2015 explored the interactions between natural biogenic forest emissions from central Amazonia and urban air pollution Manaus. Previous studies showed that nitrogen oxide (NOx = NO + NO2) sulfur (SOx) Manaus strongly interact with volatile organic compounds (BVOCs), affecting secondary aerosol (SOA) formation. In previous studies, ground-based aircraft measurements provided evidence of SOA formation strong changes in composition...
In the present study two extreme events that occurred in East Coast of Northeast Brazil (ENEB) during 2022 and 2023 were evaluated. These are becoming increasingly frequent all regions Brazil, associated with significant material human losses, emphasizing significance a deeper comprehension these events. ERA5 global reanalysis data, GOES-16 satellite imagery pluviometric stations used for analysis. Model simulations also conducted using Prediction Across Scales (MPAS) variable resolution...
In this work, we used the MICE (Multivariate Imputation by Chained Equations) technique to impute missing daily data from six meteorological variables (precipitation, temperature, relative humidity, atmospheric pressure, wind speed and insolation) 96 stations located in northeast region of Brazil (NEB) for period 1961 2014. We then applied tests with a quality control system (QCS) developed detection, correction possible replacement suspicious data. Both gap filling QCS showed that it was...
As sub-bacias hidrográficas de Sobradinho, Três Marias e Retiro Baixo, estão localizadas no Rio São Francisco, qual abrange grande parte do Nordeste Brasil desempenham um papel fundamental na produção biomassa água qualidade para a região, além ser importante conservação da biodiversidade. A gestão dos recursos hídricos é essencial garantir o uso efetivo água. mudanças climáticas, impulsionadas pela atividade humana, têm impactos significativos ciclo hidrológico global, incluindo aumento das...
This study explores the predictability of monthly asthma notifications using models built from different machine learning techniques in Maceió, a municipality with tropical climate located northeast Brazil. Two sets predictors were combined and tested, first containing meteorological variables pollutants, called exp1, second only variables, exp2. For both experiments, tests also carried out incorporating lagged information time series records. The trained on 80% data validated remaining 20%....
Objective: The objective of this study is to evaluate the performance model (BAM - Brazilian Atmospheric Model) in simulating regional climate variability NEB and associated atmospheric circulation characteristics during austral summers 2011 (La Niña), 2014 (Normal), 2016 (El Niño). Method: For study, simulation data from BAM were used, along with Precipitation Global Climatology Project (GPCP). Data on zonal meridional components MERRA2 reanalysis addition components, air temperature at 850...
This study presents a 21-year climatology (1998–2018) of Easterly Wave Disturbances (EWDs) over the Tropical South Atlantic (TSA). The identification these systems was performed subjectively using infrared satellite images and fields relative vorticity streamlines at 1000, 850, 700, 500, 200 hPa levels from ERA-Interim (ERAI) reanalysis. Additionally, TracKH automatic tracking algorithm applied, successfully capturing approximately 66% identified events. A total 518 EWDs were...
Extreme rainfall events are becoming increasingly frequent in Northeast Brazil (NEB). The state of Alagoas, located on the eastern coast region, is one most affected areas recent years, with records high-magnitude over past four years. These cause significant socioeconomic impacts, resulting considerable human and material losses, underscoring importance a deeper understanding to mitigate short-term risks better. This study aims investigate synoptic mesoscale conditions driving extreme...
Land use in the city of Maceió is rapidly changing from its natural state to accommodate a growing population and tourism. These changes include increased urbanization. There has been significant increase frequency intensity extreme events occurring recent years Northeast region Brazil (NEB), especially metropolitan areas. It believed that this may be associated with exacerbated land (LU) these Therefore, objective work evaluate how an intense simulation event using WRF model would...
A Bacia Hidrográfica do Rio Mundaú (BHM), é uma das mais importantes para os estados de Alagoas e Pernambuco, clima tropical/semiárido onde o curso d’água extensão territorial da bacia cruza divide dois estados. Nessa há ocorrências cíclicas grandes períodos estiagens enxurradas severas. Diante desta problemática, objetivo deste estudo foi regionalizar as previsões climáticas modelo francês Méteo-France System 7 (MFS7) a BHM utilizando técnica Análise Correlações Canônicas (ACC). previsão...
A evapotranspiração (ET) obtida via satélite viabiliza a identificação e caracterização de áreas voltadas para agricultura, recursos hídricos outros fins, contudo, dados sensoriamento remoto são cada vez mais condizentes com observações feitas em superfície. Portanto, o objetivo deste estudo é avaliar as estimativas das componentes da ET diária partir do algoritmo SEBAL plataforma Google Earth Engine (GEE). análise informações matriciais adquiridas através Landsat 5 8 definem como...
O seguinte estudo objetivou a contagem e identificação das principais características de eventos simultâneos altas temperaturas secas para o Nordeste do Brasil (NEB) partir reanálises mensais máximas, disponibilizadas pelo Climate Research Unit (CRU), indice SPEI-1, disponibilizado Consejo Superior Investigaciones Científicas (CISC), ambos com resolução espacial 0,5º x período entre 1901 2020 (120 anos). 141 foram identificados no NEB, um total 314 meses (~22% período), média Anual 2,6...
A Zona de Convergência Intertropical (ZCIT) é um dos principais sistemas atmosféricos tropicais, influenciando a distribuição das chuvas sobre os oceanos tropicais e em diversas regiões continentais, afetando padrões climáticos. avaliação da representação ZCIT modelos globais essencial para aprimorar previsões meteorológicas projeções mudanças climáticas. Neste contexto, este estudo analisou capacidade do modelo Brazilian Global Atmospheric Model (BAM) reproduzir posição espaciais o oceano...
ABSTRACT In this study, long‐term variations of dry and wet events, large‐scale atmospheric circulation mechanisms triggering drought conditions are investigated for Türkiye. For purpose, meteorological data 92 stations used the period 1965–2020. conditions, 0.5° × monthly gridded values Standardised Precipitation Evapotranspiration Index (SPEI‐1 month) 1903–2022. Later, role North Atlantic Oscillation (NAO) East Atlantic/West Russia (EA/WR) patterns on regional dry/wet seasons is...
The Amazon rainforest suffers increasing pressure from anthropogenic activities. A key aspect not fully understood is how atmospheric emissions within the basin interact with biogenic and impact forest's atmosphere biosphere. We combine a high-resolution chemical transport model an improved inventory in-situ measurements to investigate surprisingly high concentration of ozone (O3) secondary organic aerosol (SOA) 150–200 km downwind Manaus city in otherwise pristine forested region. show that...
Given the increasing occurrence of landslides on East Coast Northeast Brazil (ECNEB), it is essential to understand its conditions and triggering factors because meteorological anomalies triggered by a landslide will threaten life property in region. In this sense, research aimed diagnose that ECNEB May 2017, evaluate terrain’s intrinsic using elevation, slope, susceptibility parameters determine critical precipitation thresholds for city with highest number risk areas A dynamic downscaling...
In this study, we evaluated the performance of Brazilian Global Atmospheric Model (BAM), in its version 2.2.1, representation surface variables solar radiation, temperature (maximum, minimum, and average), wind speed. Three experiments were carried out for period from 2016 to 2022 under three different aerosol conditions (constant (CTE), climatological (CLIM), equal zero (ZERO)), discarding first year as a spin-up period. The observations came high-resolution gridded analysis that provides...
Monitoring rainfall in the Brazilian Legal Amazon (BLA), which comprises most of largest tropical rainforest and river basin on planet, is extremely important but challenging. The size area land cover alone impose difficulties operation a rain gauge network. Given this, we aimed to evaluate performance nine databases that estimate BLA, four from gridded analyses based pluviometry (Xavier, CPC, GPCC CRU), remote sensing (CHIRPS, IMERG, CMORPH PERSIANN-CDR), one reanalysis (ERA5Land). We found...
Abstract Precipitation can induce a surface sensible heat flux since the raindrops are generally cooler than surface. This precipitation‐induced ( Q P ) is typically ignored in models. However, during heavy rainfall, be large and may not negligible such as over India summer monsoon season. We provide first results of incorporating simulation that shows ∼2% (∼5%) reduction precipitation compared to without monsoonal active phase 2017 (2018). was primarily due vertical advection moisture....