A5025020461- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Aeolian processes and effects
- Fluid Dynamics and Turbulent Flows
- Environmental and biological studies
- Climate variability and models
- Meteorological Phenomena and Simulations
- Plant responses to elevated CO2
- Wind and Air Flow Studies
- Atmospheric Ozone and Climate
- Remote Sensing in Agriculture
- Tree Root and Stability Studies
- Geography and Environmental Studies
- Geochemistry and Geologic Mapping
- Forest ecology and management
- Solar Radiation and Photovoltaics
- Geophysics and Gravity Measurements
- Hydrology and Sediment Transport Processes
- Groundwater and Isotope Geochemistry
- Impact of Light on Environment and Health
- Urban Heat Island Mitigation
- Ecosystem dynamics and resilience
- Chemistry and Chemical Engineering
Instituto Federal de Educação, Ciência e Tecnologia do Pará
2015-2025
National Institute of Amazonian Research
2013-2024
Universidade Federal do Pará
2022-2023
National Research Council
2023
University of Urbino
2023
Universidade Federal de Santa Maria
2023
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 Natural aerosol feedbacks are expected to become more important in the future, as anthropogenic emissions decrease due air quality policy. One such feedback is initiated by increase biogenic volatile organic compound (BVOC) with higher temperatures, leading secondary (SOA) production and a cooling of surface via impacts on cloud radiative properties. Motivated considerable spread strength Earth System Models (ESMs), we here use two long-term observational datasets from boreal...
Per- and polyfluoroalkyl substances (PFAS), often referred to as "forever chemicals", are a class of man-made, extremely stable chemicals, which widely used in industrial commercial applications. Exposure some PFAS is now known be detrimental human health. By virtue long residence times, they detected the environment, including remote locations such Arctics, where origin poorly understood. It has been suggested that may transported through contaminated waters, leading accumulation coastal...
Methane (CH4) is an important greenhouse gas whose natural sources are still poorly understood, and significant uncertainties in their quantification remain. Tropical upland forests generally present a small CH4 sink with occasional local emission hotspots, making it challenging to determine the net ecosystem flux. This study employs two complementary micro-meteorological methods estimate methane fluxes from Terra Firme (upland forest) central Amazon. At Amazon Tall Tower Observatory (ATTO)...
The atmospheric boundary layer height (zi) is a key parameter in the vertical transport of mass, energy, moisture, and chemical species between surface free atmosphere. There lack long-term continuous observations zi, however, particularly for remote regions, such as Amazon forest. Reanalysis products, ERA5, can fill this gap by providing temporally spatially resolved information on zi. In work, we evaluate ERA5 estimates zi (zi-ERA5) two locations corrected them means ceilometer,...
Abstract How are rain forest photosynthesis and turbulent fluxes influenced by clouds? To what extent clouds affected local processes driven energy, water, carbon fluxes? These interrelated questions were the main drivers of intensive field experiment CloudRoots-Amazon22 which took place at Amazon Tall Tower Observatory (ATTO)/Campina supersites in during dry season, August 2022. collected observational data to derive cause–effect relationships between occurring leaf level up canopy scales...
<title>Abstract</title> Data from three different heights (35, 50 and 81 meters) of one the ATTO Project towers in Amazon forest were used to calculate TKE (turbulence kinetic energy) budget some other statistics within RSL (roughness sublayer). In addition, results obtained data compared with large eddy simulation (LES). The analyses carried out for unstable stable cases. vertical turbulence transport (Tv) advection (Av) terms do not explain imbalances found budget, highlighting importance...
Abstract. Amazon forests play a significant role in the global C cycle by assimilating large amounts of CO2 through photosynthesis and storing largely as biomass soil organic matter. To evaluate net budget Amazon, we must also consider amplitude timing losses back to atmosphere respiration burning. One useful timescale metric that integrates such information terrestrial ecosystems is transit time C, defined elapsed between entering leaving ecosystem; equivalent age exiting ecosystem, which...
Volatile organic compounds (VOCs) are important to atmospheric chemistry as they readily react with ambient oxidants, such ozone (O3) and hydroxy radicals (OH) produce particles, thereby influencing air quality, trace gas lifetimes climate. The Amazon rainforest is the largest natural source of VOCs in atmosphere, net emissions resulting from a complex balance between sources sinks across different ecosystem compartments, canopy soil. aim this study was characterize seasonal dynamics VOC...
Large areas of the central Amazon basin are characterized by a dense rainforest cover and subtle variation in topography, microclimate edaphic conditions. This leads to pronounced differences tree species composition with their specific functional traits. Major forest types Central seasonally flooded riparian along blackwater rivers (igap&#243;), mesic small valleys dissecting terra firmeplateaus (baixios), extremely nutrient-poor on white sands (campinas), upland firme plateaus.We...
Lightning-produced nitrogen oxides (LNOx) represent a key source of reactive in the Amazon, yet their role regional atmospheric chemistry and transport remains poorly constrained. Beyond ozone production, LNOx is driver new aerosol particle formation upper troposphere, with earlier studies linking this process to outflow deep convective clouds downward flux particles during precipitation events. However, recent findings highlight that injections driven by from processes also play crucial...
Abstract The planetary boundary layer height ( zi ) is a key parameter in meteorology and climatology, influencing weather prediction, cloud formation, the vertical transport of scalars energy near Earth's surface. This study compares multiple machine learning (ML) models that predict from surface measurements at two sites Central Amazonia—the Amazon Tall Tower Observatory (ATTO) Manacapuru site GoAmazon experiment (T3). Models were trained on ceilometer data with radiosonde used for...
Abstract On the basis of measurements over different surfaces, an inertial sublayer (ISL), where Monin‐Obukhov Similarity Theory applies, exists above z =3 h , is canopy height. The roughness within < <3 . Most studies surface layer forests, however, are able to probe only a narrow region Therefore, direct verification ISL tall forests difficult. In this study we conducted systematic analysis unstable turbulence characteristics at heights from 40 325 m, measured 80m, and recently built...
Abstract Observational data from two field campaigns in the Amazon forest were used to study vertical structure of turbulence above forest. The analysis was performed using reduced turbulent kinetic energy (TKE) budget and its associated two-dimensional phase space. Results revealed existence regions within roughness sublayer which TKE cannot be explained by canonical flat-terrain budgets canopy or lower portion convective ABL. Data also suggested that deviations horizontal homogeneity have...
Abstract. This study investigates the rain-initiated mixing and variability in concentration of selected trace gases atmosphere over central Amazon rain forest. It builds on comprehensive data from Tall Tower Observatory (ATTO), spanning 2013 to 2020 comprising greenhouse (GHG) carbon dioxide (CO2) methane (CH4), reactive monoxide (CO), ozone (O3), nitric oxide (NO), nitrogen NO2 (NO2) as well volatile organic compounds (VOC). Based more than 1000 analyzed rainfall incidents, resolves gas...
Per- and polyfluoroalkyl substances (PFAS), often referred to as "forever chemicals", are a class of man-made, extremely stable chemicals, which widely used in industrial commercial applications. Exposure some PFAS is now known be detrimental human health. By virtue long residence times, they detected the environment, including remote locations such Arctics, where origin poorly understood. It has been suggested that may transported through contaminated waters, leading accumulation coastal...