Search Results - "Stefanello, Michel"
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A Micrometeorological Analysis of the Vento Norte Phenomenon in Southern Brazil
Published in Boundary-layer meteorology (01-09-2020)“…A sonic anemometer is employed to investigate turbulent statistical characteristics and meteorological properties associated with a local windstorm known as…”
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Investigating the Turbulent Vertical Dispersion in a Strong Shear Dominated Neutral Atmospheric Boundary Layer
Published in Atmosphere (01-09-2024)“…The primary focus of this article is to derive a solution to obtain the asymptotic turbulent dispersion parameter provided by the spectral Taylor statistical…”
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Spatial–Temporal Analysis of a Summer Heat Wave Associated with Downslope Flows in Southern Brazil: Implications in the Atmospheric Boundary Layer
Published in Atmosphere (01-01-2023)“…This study investigates a summer heat wave (HW) associated with downslope winds (DWs) affecting the central region of the state of Rio Grande do Sul (RS),…”
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Meteorological Observations of the Vento Norte Phenomenon in the Central Region of Rio Grande do Sul
Published in Revista Brasileira de Meteorologia (01-09-2021)“…Abstract During the cold season, episodes of a windstorm known as Vento Norte (VNOR) are frequently observed in the city of Santa Maria, situated in the…”
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Eddy diffusivities for the convective boundary layer derived from LES spectral data
Published in Atmospheric pollution research (01-07-2015)“…Large Eddy Simulation (LES) spectral data and Taylor statistical diffusion theory are used to obtain Eddy diffusivities in a convective boundary layer. The…”
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Influence of submeso motions on scalar oscillations and surface energy balance
Published in Quarterly journal of the Royal Meteorological Society (01-01-2020)“…The presence of wave‐like structures in the planetary boundary layer and their influence on the scalar fluxes and on the surface energy balance were…”
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Characterization of Wind Meandering in Low-Wind-Speed Conditions
Published in Boundary-layer meteorology (01-10-2016)“…Investigation of low-wind cases observed during the Urban Turbulent Project campaign (Torino, Italy) and at the Santa Maria meteorological station (Santa…”
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Estimation of soil thermal properties using conduction and conduction–convection heat transfer equations in the Brazilian Pampa biome
Published in Agricultural and forest meteorology (15-07-2023)“…•We used models of heat transfer by conduction and convection to estimate soil thermal properties.•We used 1.5 years of experimental data on a natural pasture…”
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Horizontal meandering in direct numerical simulations of the stable boundary layer
Published in Quarterly journal of the Royal Meteorological Society (01-10-2022)“…Large‐scale nonturbulent motions are investigated using high‐resolution direct numerical simulations of the turbulent Ekman layer at a moderate Reynolds…”
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10
Winter heat waves characteristics associated with downslope windstorm in south Brazil
Published in International journal of climatology (15-11-2023)“…The air temperature anomaly was analysed in 16 consecutive winters from 2004 to 2019 in southern Brazil using reanalysis data and hourly atmospheric…”
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Climatological Features of the Vento Norte Phenomenon in the Extreme South of Brazil
Published in Anuário do Instituto de Geociências (12-04-2023)“…Downslope windstorm known as Vento Norte (VNOR; Portuguese for “North Wind”) is a common phenomenon that occurs in southern Brazil during the winter season…”
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Employing Spectral Analysis to Obtain Dispersion Parameters in an Atmospheric Environment Driven by a Mesoscale Downslope Windstorm
Published in International journal of environmental research and public health (10-12-2021)“…Considering the influence of the downslope windstorm called "Vento Norte" (VNOR; Portuguese for "North Wind") in planetary boundary layer turbulent features, a…”
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Regional-scale meteorological characteristics of the Vento Norte phenomenon observed in Southern Brazil
Published in Environmental fluid mechanics (Dordrecht, Netherlands : 2001) (01-08-2022)“…The sudden increase in air temperature associated with strong gusty winds of northerly direction is a phenomenon occasionally observed during the cold season…”
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Understanding nighttime methane signals at the Amazon Tall Tower Observatory (ATTO)
Published in Atmospheric chemistry and physics (05-06-2020)“…Methane (CH4) atmospheric mixing ratio measurements are analyzed for the period between June 2013 and November 2018 at the Amazon Tall Tower Observatory…”
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A quasi-experimental coastal region eddy diffusivity applied in the APUGRID model
Published in Annales geophysicae (1988) (04-05-2020)“…In this study, Taylor statistical diffusion theory and sonic anemometer measurements collected at 11 levels on a 140 m high tower located in a coastal region…”
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16
Employing the Hilbert–Huang Transform to analyze observed natural complex signals: Calm wind meandering cases
Published in Physica A (15-11-2016)“…In this study we analyze natural complex signals employing the Hilbert–Huang spectral analysis. Specifically, low wind meandering meteorological data are…”
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