Análise de Variáveis Atmosféricas Observadas em Alta Resolução Espaço-Temporal Durante um Experimento de 30 Dias na Mesorregião da Ilha de Santa Catarina

Bitencourt, Daniel Pires; Fuentes, Márcia Vetromilla; Calearo, Daniel Sampaio

doi:10.1590/0102-778631220140138

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…In Campos Novos, the high wind speed in relation to Lages may be associated with less influence of the barriers in its proximities. Comparing winds series in a mesoregion of the Santa Catarina Island (Florianópolis), Bitencourt et al (2016) verified a velocity variability associated mainly to the elevations in the surrounding.…”

Section: 1wind Velocitymentioning

confidence: 76%

Characterization of the Predominant Wind Speed and Direction in Santa Catarina, Brazil

Wahrlich

Silva

Campos

et al. 2018

ABClima

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The state of Santa Catarina presents significant spatial variations in its climate, with different regional peculiarities. Wind is considered an important meteorological variable, but it is not sufficiently studied and there is a shortage of information on this subject in the region of Santa Catarina. Thus, the objective of this article was to analyze the behavior of the winds in five regions of the state, with different aspects: altitude, topography and climatology patterns. For that, daily data from National Institute of Meteorology of direction and speed of the winds were used from 1974 to 2016. The conventional meteorological stations used were: Chapecó, Campos Novos, Lages, Indaial and Florianópolis. The data were submitted through consistence analysis, monthly descriptive statistics of the velocity were obtained, the predominant direction was characterized through frequency analysis and a conceptual model of prevailing winds in the state was created. Regarding wind speed, Florianópolis and Campos Novos registered the highest speeds during the whole year. In the analysis of wind direction, the prevalence of South Atlantic subtropical anticyclone was observed in most of the year in Florianópolis (circulation from north), Lages and Campos Novos (from northeast). In Chapecó, the predominant east wind direction is associated with the low pressure system in the Paraguay region. For Indaial, the orography has a strong influence on the local circulation, favoring a southwest wind direction, by the formation of the mountain-valley breeze, which has as a forcing the air temperature differences between the valley and the mountain in the night period.RESUMO: Apesar do estado de Santa Catarina possuir pouca variação na latitude, apresenta variações espaciais significativas no seu clima, como verificado neste estudo. O vento é considerado uma importante variável meteorológica, porém não é suficientemente estudado e existe uma escassez de informações sobre esse assunto na região de Santa Catarina. Sendo assim, o objetivo deste artigo foi analisar o comportamento dos ventos em regiões do estado, com diferentes aspectos: altitude, topografia e padrões climáticos. Para tanto, foram utilizados dados diários no Instituto Nacional de Meteorologia (INMET) da direção e velocidade dos ventos no período de 1974 a 2016. As estações meteorológicas convencionais utilizadas foram: Chapecó, Campos Novos, Lages, Indaial e Florianópolis. Após consistidos, os dados diários de vento foram _________________Revista Brasileira de Climatologia_________________

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Section: 1wind Velocitymentioning

confidence: 76%

Characterization of the Predominant Wind Speed and Direction in Santa Catarina, Brazil

Wahrlich

Silva

Campos

et al. 2018

ABClima

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“…In these cases, advanced studies on the theme of atmospheric variability (hereafter frequencies or periodicities) have successfully used the wavelet transform (WT) technique, which identifies the dominant periodicities and their interactions with other frequencies in a time series. Studies such as these are important in supporting environmental diagnoses, in addition to providing knowledge of small-scale mechanisms that influence local circulation and the regional climate (Bitencourt et al, 2016). Thus, the WT has been used in several studies on atmospheric phenomena (Echer et al, 2008;Blain and Kayano 2011;Moura and Vitorino, 2012;Vilani and Sanches, 2013;Rocha et al, 2018;Rocha et al, 2019), hydrological systems (Sassi et al, 2011;Santos et al, 2013;Guo et al, 2015;Sun et al, 2016), and tidal studies (Danial et al, 2019).…”

Section: Open Access Edited Bymentioning

confidence: 99%

“…To verify the predominance of the direction and the mean speed of the winds in each hydrometeorological station under study, the wind rose was prepared for 2017 using WRPLOT View software, which is available free of charge for download at https://www.weblakes.com/ products/wrplot/index.html and was developed by Lakes Environmental. This methodology has been successfully used in similar studies on wind patterns (Mattiuzzi and Marchioro, 2012;Pimentel et al, 2014;Bitencourt et al, 2016).…”

Section: Datamentioning

confidence: 99%

Analysis of the wind regime at high spatial-temporal resolution in the itacaiúnas river watershed, eastern amazon

Tavares¹,

Silva²,

Carmo³

et al. 2023

Front. Earth Sci.

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In the present study, hourly wind direction and speed data from six subregions along the Itacaiúnas River watershed (IRW), Eastern Amazon, are analyzed over a 1-year period. The data are acquired from six hydrometeorological stations located in areas of the IRW with different characteristics of land use and plant cover. Among the stations studied, Serra Leste (mine to pasture transition) stands out, with prevailing winds from the Southeast and the East-Southeast, in addition to higher wind speeds. In contrast, at the Salobo (forest) station, the lowest wind speeds are observed, and this station presents the highest percentage of calm winds (60%) in the series. In the analysis of the daytime (from 6 a.m. to 5 p.m.) and nighttime (from 6 p.m. to 5 a.m.) wind cycles, the breeze and mesoscale circulation system are identified. Predominantly northerly winds are observed acting on the Abadia Farm and IFPA Rural (Federal Institute of Education, Science and Technology of Pará) stations, both during the day and at night, overlapping with the local breeze effects. Daily (24 h) and associated breeze circulation (12 h) cycle frequency signals are identified through wavelet transform analyses of the wind for all stations. The interference from large-scale phenomena, such as the Intertropical Convergence Zone (ITCZ) and the South Atlantic Convergence Zone (SACZ), which operate in the region, is evident. Finally, the data show that the differences in wind patterns are also due to environmental aspects such as plant cover, land use, and topography.

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Análise de Variáveis Atmosféricas Observadas em Alta Resolução Espaço-Temporal Durante um Experimento de 30 Dias na Mesorregião da Ilha de Santa Catarina

Cited by 2 publications

References 12 publications

Characterization of the Predominant Wind Speed and Direction in Santa Catarina, Brazil

Characterization of the Predominant Wind Speed and Direction in Santa Catarina, Brazil

Analysis of the wind regime at high spatial-temporal resolution in the itacaiúnas river watershed, eastern amazon

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