A5023791407- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Environmental and biological studies
- Remote Sensing in Agriculture
- Geography and Environmental Studies
- Climate variability and models
- Soil Carbon and Nitrogen Dynamics
- Chemistry and Chemical Engineering
- Plant responses to elevated CO2
- Solar Radiation and Photovoltaics
- Urban Heat Island Mitigation
- Atmospheric chemistry and aerosols
- Forest ecology and management
- Atmospheric aerosols and clouds
- Flood Risk Assessment and Management
- Bioenergy crop production and management
- Growth and nutrition in plants
- Soybean genetics and cultivation
- Soil Management and Crop Yield
- Fire effects on ecosystems
- Earthquake Detection and Analysis
- Landslides and related hazards
- Urban Arborization and Environmental Studies
- Environmental Toxicology and Ecotoxicology
- Noise Effects and Management
National Institute of Amazonian Research
2023-2025
Universidade Federal do Rio Grande do Norte
2019-2023
Terra
2019
Abstract Forest ecosystems sequester large amounts of atmospheric CO 2 , and the contribution from seasonally dry tropical forests is not negligible. Thus, objective this study was to quantify evaluate seasonal annual patterns exchanges in Caatinga biome, as well ecosystem condition carbon sink or source during years. In addition, we analyzed climatic factors that control variability gross primary production (GPP), respiration (R eco ) net exchange (NEE). Results showed dynamics components...
The Caatinga dry forest encompasses 11% of the total continental territory Brazil. Nevertheless, most research on relationship between phenology and ecosystem productivity Brazilian tropical forests is aimed at Amazon basin. Thus, in this study we evaluated seasonality (gross primary production—GPP) a preserved environment northeast Analyses were carried out using eddy covariance measurements satellite-derived data from sensor MODIS (MODerate Resolution Imaging Spectroradiometer, MOD17 MOD13...
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...
The objective of this study was to analyze the influence large-scale atmospheric–oceanic mechanisms (El Niño–Southern Oscillation—ENSO and inter-hemispheric thermal gradient Tropical Atlantic) on spatial–temporal variability soy yield in MATOPIBA. following, available literature, were used: (i) daily meteorological data from 1980 2013 (Xavier et al., 2016); (ii) (chemical, physical, hydric) properties predominant soil class area interest, at World Inventory Soil Emission Potentials platform;...
The analysis of gross primary production (GPP) is crucial to better understand CO2 exchanges between terrestrial ecosystems and the atmosphere, while quantification water-use efficiency (WUE) allows for estimation compensation carbon gained water lost by ecosystem. Understanding these dynamics essential comprehend responses environments ongoing climatic changes. objective present study was analyze, through AMERIFLUX LBA network measurements, variability GPP WUE in four distinct tropical...
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...
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...
Although seasonally dry tropical forests are considered invaluable to a greater understanding of global carbon fluxes, they remain as one the ecosystems with fewest observations. In this context, ecological and ecosystem models can be used alternative methods answer questions related interactions between biosphere atmosphere in forests. The objective study was calibrate simple model (SITE) evaluate its performance characterizing annual seasonal behavior energy fluxes preserved fragment...
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...
Studying the dynamics of gross primary production (GPP) in seasonally dry tropical forests is fundamental importance to understand carbon dioxide (CO2) balance this ecosystem, helping mitigate its potential impacts at regional and global levels. Thus, objective work was evaluate accuracy GPP estimated via remote sensing Caatinga biome. A set observed data retrieved from micrometeorological towers equipped with eddy covariance systems were used validate data. The measured a preserved...
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...
The main objective of this study was to evaluate meteorological variables and the simulated components energy CO2 balances in desertification hotspots Northeast Brazil. Meteorological data were obtained from National Institute Meteorology measurement network for Cabrobó Ibimirim sites. Initially, hourly linear trends calculated using non-parametric Mann–Kendall test. Then, seasonal variability assessed through simulations simple tropical ecosystem (SITE) model. Results showed evidence...
This research aims to provide a brief evaluation of remotely sensed estimates in representing gross primary production (GPP) over pasture the Northeast Region Brazil. We used GPP data measured situ during micrometeorological experiment performed area located NEB region using eddy covariance technique. Remotely was obtained through MOD17A2H product Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on board Terra satellite. concluded that moderately represents surface-measured...
Research focusing on energy, water vapor, and CO2 exchanges over the Caatinga Biome is recent. Consequently, there exist research gaps this topic that limit our ability to understand project interannual long-term variations in cycle of environment. Thus, objective study was evaluate behavior energy balances under extreme rainfall conditions (extreme drought intense rainfall) using simulations SITE model (Simple Tropical Ecosystem Model). Meteorological data from years 2009 (heavy 2012...
Este trabalho descreve os aspectos termodinâmicos associados à atuação de um Vórtice Ciclônico Altos Níveis (VCAN) na Região Nordeste do Brasil, que ocorreu no período 13 a 24 janeiro 2011. O foco é nos dias em borda sistema esteve atuando áreas da costa leste Nordeste, sobre cidade Natal Estado Rio Grande Norte. Dados reanálises European Centre for Medium-Range Forecast (ECMWF) foram utilizados para calcular fonte aparente calor (Q1) e o sumidouro umidade (Q2). Os resultados mostraram...
Carbonyl sulphide has potential as a tracer of gross primary productivity. However, its use at the ecosystem scale requires us to understand something about atmospheric transport and distribution sources sinks within environment interest. Despite importance understanding controls on carbon uptake release by Amazonian forests, very little is known carbonyl cycle widespread terra firme ecosystems.   Here we report exchange estimated from concentration measurements various heights,...
Abstract. This study investigates the rain-initiated mixing and variability in ratio 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 (GHGs) carbon dioxide (CO2) methane (CH4); reactive monoxide (CO), ozone (O3), nitric oxide (NO), nitrogen (NO2); volatile organic compounds (VOCs). Based more than 1000 analyzed rainfall events, resolves gas patterns before,...