Rodrigo Augusto Ferreira De Souza
A5073906588- Air Quality Monitoring and Forecasting
- Water Quality Monitoring and Analysis
- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Chemistry and Stereochemistry Studies
- Atmospheric aerosols and clouds
- Air Quality and Health Impacts
- Fault Detection and Control Systems
- Atmospheric Ozone and Climate
- Climate variability and models
- Geography and Environmental Studies
- Environmental and biological studies
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Digital Media Forensic Detection
- Plant Water Relations and Carbon Dynamics
- Toxic Organic Pollutants Impact
- Business Strategy and Innovation
- Vehicle emissions and performance
- Advanced Biosensing Techniques and Applications
- Plant responses to elevated CO2
- Isotope Analysis in Ecology
- Remote Sensing in Agriculture
- Aeolian processes and effects
Universidade do Estado do Amazonas
2016-2025
Escola Superior de Ciências da Saúde
2016-2025
National Institute of Amazonian Research
2019-2025
Institute of the Environment
2020
Brazilian Institute of Environment and Renewable Natural Resources
2020
Universidade Estadual Paulista (Unesp)
2020
Amazon (United States)
2017-2019
Pontifical Catholic University of Rio de Janeiro
2016
Jesuit School of Philosophy and Theology
2016
Pontifícia Universidade Católica do Paraná
2016
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...
Abstract. A global vertically resolved aerosol data set covering more than 10 years of observations at 20 measurement sites distributed from 63° N to 52° S and 72° W 124° E has been achieved within the Raman polarization lidar network PollyNET. This consists portable, remote-controlled multiwavelength-polarization-Raman lidars (Polly) for automated continuous 24/7 clouds aerosols. PollyNET is an independent, voluntary, scientific network. All Polly feature a standardized instrument design...
Abstract. The Amazon Basin plays key roles in the carbon and water cycles, climate change, atmospheric chemistry, biodiversity. It has already been changed significantly by human activities, more pervasive change is expected to occur coming decades. therefore essential establish long-term measurement sites that provide a baseline record of present-day climatic, biogeochemical, conditions will be operated over decades monitor region, as perturbations increase future. Tall Tower Observatory...
Abstract. The Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5) Experiment was carried out in environs Manaus, Brazil, central region basin for 2 years from 1 January 2014 through 31 December 2015. experiment focused on complex interactions among vegetation, atmospheric chemistry, aerosol production one hand their connections to aerosols, clouds, precipitation other. objective understand quantify these linked processes, first under natural conditions obtain a baseline...
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...
Abstract The Observations and Modeling of the Green Ocean Amazon 2014–2015 (GoAmazon2014/5) experiment took place around urban region Manaus in central Amazonia across 2 years. pollution plume was used to study susceptibility gases, aerosols, clouds, rainfall human activities a tropical environment. Many aspects air quality, weather, terrestrial ecosystems, climate work differently tropics than more thoroughly studied temperate regions Earth. GoAmazon2014/5, cooperative project Brazil,...
Abstract Between 1 September and 4 October 2014, a combined airborne ground-based measurement campaign was conducted to study tropical deep convective clouds over the Brazilian Amazon rain forest. The new German research aircraft, High Altitude Long Range Research Aircraft (HALO), modified Gulfstream G550, extensive instrumentation were deployed in near Manaus (State of Amazonas). part German–Brazilian Aerosol, Cloud, Precipitation, Radiation Interactions Dynamics Convective Cloud...
Acid-driven multiphase chemistry of isoprene epoxydiols (IEPOX), key oxidation products, with inorganic sulfate aerosol yields substantial amounts secondary organic (SOA) through the formation organosulfur compounds. The extent and implications inorganic-to-organic conversion, however, are unknown. In this article, we demonstrate that extensive consumption occurs, which increases IEPOX-to-inorganic concentration ratio (IEPOX/Sulfinorg), as determined by laboratory measurements....
For the first time, multiwavelength polarization Raman lidar observations of optical and microphysical particle properties over Amazon Basin are presented. The fully automated advanced was deployed 60 km north Manaus, Brazil (2.5°S, 60°W) in rain forest from January to November 2008. measurements thus cover both wet season (Dec–June) dry or burning (July–Nov). Two cases studies young aged smoke plumes discussed terms spectrally resolved (355, 532, 1064 nm) further products such as effective...
CHUVA, meaning “rain” in Portuguese, is the acronym for Cloud Processes of Main Precipitation Systems Brazil: A Contribution to Cloud-Resolving Modeling and Global Measurement (GPM). The CHUVA project has conducted five field campaigns; sixth last campaign will be held Manaus 2014. primary scientific objective contribute understanding cloud processes, which represent one least understood components weather climate system. campaigns were designed investigate specific tropical regimes. first...
Abstract. Carbon cycling in the Amazon is closely linked to atmospheric processes and climate region as a consequence of strong coupling between atmosphere biosphere. This work examines effects changes net radiation due aerosol particles clouds on ecosystem exchange (NEE) CO2 region. Some major environmental factors affecting photosynthetic activity plants, such air temperature relative humidity, were also examined. An algorithm for clear-sky irradiance was developed used determine...
Abstract. The Amazon Basin plays key role in atmospheric chemistry, biodiversity and climate change. In this study we applied nanoelectrospray (nanoESI) ultra-high-resolution mass spectrometry (UHRMS) for the analysis of organic fraction PM2.5 aerosol samples collected during dry wet seasons at a site central Amazonia receiving background air masses, biomass burning urban pollution. Comprehensive spectral data evaluation methods (e.g. Kendrick defect, Van Krevelen diagrams, carbon oxidation...
Exchange of atmospheric organic compounds between gas and particle phases is important in the production chemistry particle-phase mass but poorly understood due to a lack simultaneous measurements both individual compounds. Measurements particle- gas-phase are reported here for southeastern United States central Amazonia. Polyols formed from isoprene oxidation contribute 8% 15% on average at these sites also observed have substantial concentrations contrary many models that treat as...
Significance For isolated regions of the planet, organic peroxy radicals produced as intermediates atmospheric photochemistry have been expected to follow HO 2 rather than NO pathways. Observational evidence, however, has lacking. An accurate understanding relative roles two pathways is needed for quantitative predictions concentrations particulate matter, oxidation capacity, and consequent environmental climate impacts. The results herein, based on measurements, find that ratio reaction...
A developed non-thermal analytical method effectively resolves and quantifies major IEPOX-SOA components in PM<sub>2.5</sub>.
Abstract. Biogenic volatile organic compounds (BVOCs) from the Amazon forest region represent largest source of carbon emissions to atmosphere globally. These BVOC dominantly consist and intermediate-volatility terpenoid that undergo chemical transformations in form oxygenated condensable gases secondary aerosol (SOA). We collected quartz filter samples with 12 h time resolution performed hourly situ measurements a semi-volatile thermal desorption gas chromatograph (SV-TAG) at rural site...
ABSTRACT The impacts of El Niño ( EN ) on the rainfall over South America are investigated considering three types differing in locations maximum sea surface temperature SST anomalies equatorial Pacific: Central‐Pacific CP ), Eastern‐Pacific EP and Mixed MIX types. largest positive for occur, respectively, eastern central sectors tropical Pacific during all seasons. anomaly pattern MIX‐EN resembles that EP–EN its onset stage, CP–EN mature demise stages. different patterns affect large‐scale...
Abstract. During the Observations and Modeling of Green Ocean Amazon (GoAmazon2014/5) campaign, size-resolved cloud condensation nuclei (CCN) spectra were characterized at a research site (T3) 60 km downwind city Manaus, Brazil, in central Amazonia for 1 year (12 March 2014 to 3 2015). Particle hygroscopicity (κCCN) mixing state derived from CCN spectra, organic component aerosol (κorg) was then calculated κCCN concurrent chemical composition measurements. The annual average increased 0.13...
[1] Polarization-Raman-lidar observations of vertical aerosol profiles were performed 60 km north Manaus, Brazil, in the Amazon rain forest during Amazonia's wet season from January to May 2008. Very clean background conditions with a mean AOD (532 nm) 0.03 ± 0.02 frequently found. However, about one third all lidar measurements advection smoke and dust Africa observed. The contribution African Saharan particles total backscatter extinction coefficient was determined by means measured...
Abstract This paper analyses the relations between El Niño/Southern Oscillation (ENSO) mode in tropical Pacific and sea surface temperature (SST) modes South Atlantic for 1900–2006 period. In Atlantic, two are analysed more detail: dipole (SAD) mode, with centres at (15°S, Greenwich longitude) (37.5°S, 25°W) southwestern (SWSA) (30°S, 40°W) southern midlatitudes. The ENSO SAD lagged or lead connected depending on period of analysis. An Niño (a La Niña) precedes by up to 6 months...
Abstract. The occurrence of nonliquid and liquid physical states submicron atmospheric particulate matter (PM) downwind an urban region in central Amazonia was investigated. Measurements were conducted during two intensive operating periods (IOP1 IOP2) that took place the wet dry seasons GoAmazon2014/5 campaign. Air masses representing variable influences background conditions, pollution, regional- continental-scale biomass burning passed over research site. As air varied, particle rebound...