A5079466111- Climate variability and models
- Environmental and biological studies
- Geography and Environmental Studies
- Plant Water Relations and Carbon Dynamics
- Meteorological Phenomena and Simulations
- Soil Management and Crop Yield
- Fish biology, ecology, and behavior
- Tropical and Extratropical Cyclones Research
- Soil and Unsaturated Flow
- Geophysics and Gravity Measurements
- Hydrology and Watershed Management Studies
- Water Quality and Pollution Assessment
- Soil Moisture and Remote Sensing
- Isotope Analysis in Ecology
- Water Quality Monitoring Technologies
- Oceanographic and Atmospheric Processes
- Precipitation Measurement and Analysis
- Urban Heat Island Mitigation
- Soil and Water Nutrient Dynamics
- Atmospheric Ozone and Climate
- Flood Risk Assessment and Management
- Logistics and Infrastructure Analysis
- Groundwater and Isotope Geochemistry
- Irrigation Practices and Water Management
- Growth and nutrition in plants
National Institute of Amazonian Research
2013-2023
Amazon (United States)
2019
União Dinâmica de Faculdades Cataratas
2013
National Institute for Space Research
2003
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 The water level at the Manaus Port on Negro River reached its record value of 29.97 m 29 May 2012. This is higher than previous in year 2009 by 20 cm. rise from November 2011 till maximum highest past several decades. A cooler South Atlantic and a normal or slightly warmer North were associated with flood Amazon Basin seasonal atmospheric moisture convergence precipitation over are well correlated. During period October through 2012 moisture‐flux was 38% more intense climatology....
Understanding how Amazonian rainforests deal with extended droughts is critical in the face of changing climate. This research analyze physical properties and soil water dynamics a deep profile an area primary forest central Amazonia to elucidate these processes under drought nondrought conditions. Physical derived from cores exhibited distinctive layer between 480 880 cm deep, characterized by higher microporosity low plant availability. In situ moisture measurements collected during period...
Abstract Previous papers have shown that the rainfall anomalies over Amazon region result from independent or combined effects of eastern tropical Pacific and Atlantic Basins. Here, monthly data Itaituba, Manaus, Parintins, Santarém for 1931–1996 period has been used to classify its dry rainy seasons into dry, very wet, wet categories. The sea surface temperature (SST) level pressure (SLP) patterns associated with these climate conditions in central are discussed terms relative influence...
Os impactos de eventos anômalos no oceano Pacífico associados ao El Niño-Oscilação Sul (ENOS) na precipitação da região norte e nordeste América do foram avaliados para o período 1900 a 2007, fazendo-se uso análise composições. Niño (La Niña) que juntamente com um Modo Equatorial Atlântico (MEA) frio (quente) formam gradiente interbacias entre analisados considerando, separadamente, aqueles os quais se forma fase inicial ENOS daqueles em decaimento ENOS. resultados mostram padrão é reforçado...
Background: Dissolved organic carbon (DOC) is a major component of the total in headstreams Amazonia. Long-term measurements DOC concentration are difficult to obtain remote areas Aims: To take electrical conductivity (EC) and blackwater stream determine whether it possible make predictions such streams using continuous EC alone. Methods: In forested area, were measured groundwater along topographic gradient at weekly intervals over period 8 months, water half-hourly 2 years. Results: Strong...
Abstract. The 2015–2016 El Niño event ranks as one of the most severe on record in terms magnitude and extent sea surface temperature (SST) anomalies generated tropical Pacific Ocean. Corresponding global impacts climate were expected to rival, or even surpass, those 1997–1998 event, which had SST that similar size. However, failed meet expectations for hydrologic change many areas, including receive well above normal precipitation. To better understand how during an impact soil moisture, we...
Abstract Soil moisture plays a key role in hydrological, biogeochemical, and energy budgets of terrestrial ecosystems. Accurate soil measurements remote ecosystems such as the Amazon are difficult limited because logistical constraints. Time domain reflectometry (TDR) sensors widely used to monitor require calibration convert TDR's dielectric permittivity measurement ( K ) volumetric water content (θ v ). In this study, our objectives were develop field‐based TDR an old‐growth upland forest...
Resumo Estudos recentes têm apontado para a existência de dois tipos eventos El Niño (EN): EN do Pacífico oriental ou Canônico (EP, sigla em inglês) e Central Modoki (CP, inglês). Neste estudo, foram utilizados dados observados três modelos Coupled Model Intercomparison Project phase 5 (CMIP5) avaliar o impacto dos na precipitação da América Sul desde trimestre Junho-Agosto ano inicial evento até Março-Maio seguinte. O modelo Centre National Recherches Météorologiques (CNRM-CM5) apresentou...
The processes of water transfer in the soil-plant-atmosphere system are strongly affected by soil use and management. Differences dynamics between no-tillage (NT) conventional tillage (CT) practices during a soybean (Glycine max) growing season southern Brazil were assessed this study. All balance components analyzed (2009/2010). Rainfall, runoff, storage hydro-physical properties under two systems. land-atmosphere vapor exchanges, obtained from eddy covariance stations, with regard to...
Resumo O fenômeno da ilha de calor (IC) na cidade Manaus foi estudado usando dados modelagem do clima urbano com o modelo Weather Research and Forecasting (WRF) e estações meteorológicas. Foram usados os temperatura superfície (TS) obtidos pelo sensor MODIS satélite ambiental Aqua, produto MYD11A2 resolução horizontal 1 km por um para período 2002 a 2012 avaliar processo urbanização. Foi realizado estudo caso as simulações TS ar (TA) nos meses agosto setembro 2009 que foram comparadas,...
Abstract Mesoscale convective cloud clusters develop and organize in the form of squall lines along coastal Amazon afternoon hours propagate inland during evening hours. The frequency, location, organization into lines, movement systems are determined by analyzing “precipitation features” obtained from TRMM satellite for period 1998–2014. their alignments more frequent December to July, they mostly stay within 170 km coastline. Their development about 14 m s −1 helped sea breeze. Negative...
Resumo O objetivo deste trabalho foi avaliar a resposta atmosférica aos padrões de variabilidade interanual da Temperatura Superfície do Mar nas áreas dos oceanos Atlântico e Pacífico Tropicais, analisando o ciclo sazonal Divergência Fluxo Umidade, sobre as regiões Tropical Norte Sul Amazônia. Os dados Reanálise foram utilizados no estudo observacional para numérico utilizado Quasi-equilibrium Circulation Model - QTCM. resultados mostram que QTCM tem habilidade na representação distribuição...
A água subterrânea na Amazônia é de fundamental importância manutenção dos serviços ecossistêmicos e para atender demandas humanas. Apesar da existência grandes corpos doce região, as abastecimento são atendidas a partir fontes subterrâneas, majoritariamente freáticas. De forma geral, crescentes do recurso subterrâneo associadas ao crescimento demográfico padrões uso solo podem induzir alterações nas relações balanço hídrico e, presumidamente também, entre precipitação-recarga. Somam-se,...
Tropical rivers such as the Rio Negro constitute a major portion of global aquatic flux dissolved organic carbon (DOC) entering ocean, but exact amount, source contributions and fate terrestrial DOC remain unknown. We investigated role valley upland whitesand ecosystems (WSEs) terra firme plateaus in forming blackwater tributaries basin to develop novel constraints for export carbon. 5709 molecular markers from ground- surface waters two contrasting sites feeding were identified by ultrahigh...
Neste estudo, é avaliada a variabilidade do estoque total de água continental, derivada estimativas balanço e dados satélite, em combinação com hidrometeorológicos. A ocorrência cheias vazantes extremas na bacia Amazônica também relacionada continental. Ambos os métodos estimativa continental (Método PER Missão GRACE) mostram uma forte diminuição armazenamento durante seca 2005, recuperação cheia 2009, que se deu ao longo um período vários anos. Os resultados existe relação entre (vazantes)...