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

Wahrlich, Júlia; Silva, Flávia Arcari da; Campos, Cláudia Guimarães Camargo; Rodrigues, Maria Laura Guimarães; Medeiros, Jessica Israele de

doi:10.5380/abclima.v23i0.57115

Cited by 6 publications

(6 citation statements)

References 14 publications

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“…2 ). Moreover, a persistent influence of the NE winds generated by the offshore west branch of the SASH 30 , 31 would maintain the active dunefield. Transgressive dunefields are also reported for the Cassino Strandplain (Rio Grande do Sul, Brazil) for the periods between ~ 100 and 500 CE and ~ 1750 CE 41 , suggesting that the formation of dunefields in both locations—located 700 km apart—has been controlled by the variability of large-scale atmospheric patterns and teleconnections.…”

Section: Resultsmentioning

confidence: 99%

“…The easterly wave component of the mean effective energy flux is locally generated (Fig. 2 a) in response to the persistent north-easterly winds at the boundary of the semi-permanent SASH system 21 , 22 , 31 . A strengthening of the local wind fields tends to occur with the passage of a frontal systems, normally accompanied by high and low pressures systems that intensify the sea-level pressure gradients in the region 27 , 28 .…”

Section: South American Wave Climate Settingmentioning

confidence: 99%

“…2 b), while the southerly component is still present, but the easterly component is enhanced. In this season, the SASH migrates towards the centre of the South Atlantic basin 29 creating NE-SW wind fields tangent to the coast 30 , 31 , and low-pressure systems are observed initiating or moving along the coast up to 20–25°S 27 , 28 , strengthening the local wave generation 21 .…”

Section: South American Wave Climate Settingmentioning

confidence: 99%

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Climate-induced variability in South Atlantic wave direction over the past three millennia

Silva

Klein

Filho

et al. 2020

Sci Rep

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Through alteration of wave-generating atmospheric systems, global climate changes play a fundamental role in regional wave climate. However, long-term wave-climate cycles and their associated forcing mechanisms remain poorly constrained, in part due to a relative dearth of highly resolved archives. Here we use the morphology of former shorelines preserved in beach-foredune ridges (BFR) within a protected embayment to reconstruct changes in predominant wave directions in the Subtropical South Atlantic during the last ~ 3000 years. These analyses reveal multi-centennial cycles of oscillation in predominant wave direction in accordance with stronger (weaker) South Atlantic mid- to high-latitudes mean sea-level pressure gradient and zonal westerly winds, favouring wave generation zones in higher (lower) latitudes and consequent southerly (easterly) wave components. We identify the Southern Annular Mode as the primary climate driver responsible for these changes. Long-term variations in interhemispheric surface temperature anomalies coexist with oscillations in wave direction, which indicates the influence of temperature-driven atmospheric teleconnections on wave-generation cycles. These results provide a novel geomorphic proxy for paleoenvironmental reconstructions and present new insights into the role of global multi-decadal to multi-centennial climate variability in controlling coastal-ocean wave climate.

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Section: Resultsmentioning

confidence: 99%

Section: South American Wave Climate Settingmentioning

confidence: 99%

Section: South American Wave Climate Settingmentioning

confidence: 99%

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Climate-induced variability in South Atlantic wave direction over the past three millennia

Silva

Klein

Filho

et al. 2020

Sci Rep

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“…The light blue and light green shades represent the ocean and continental sectors, respectively. There are two predominant wind patterns in the region [41]. The main pattern is from the NE quadrant (30 • -60 • ), which is found approximately 23.5% of the time with the mean wind direction θ = 45.2 • and speed U = 8.4 m s −1 in 2017.…”

Section: Wind Speed and Directionmentioning

confidence: 99%

Coastal Wind Power in Southern Santa Catarina, Brazil

et al. 2020

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A light detection and ranging (LIDAR) wind profiler was used to estimate the wind speed in the southern coast of Santa Catarina State, Brazil. This profiler was installed on a coastal platform 250 m from the beach, and recorded wind speed and direction from January 2017 to December 2018. The power generation from three wind turbines was simulated, to obtain estimations of the average power, energy generation and capacity factor, as well as to assess the performance of a hypothetical wind farm. The scale and shape parameters of the Weibull distribution were evaluated and compared with those of other localities in the state. The prevailing winds tend to blow predominantly from the northeast and southwest directions. Wind magnitudes are higher for the NE and SW ocean sectors where the average wind power density can reach 610–820 W m−2. The Vestas 3.0 turbine spent the largest percentage of time in operation (>76%). The higher incidence of strong northeasterly winds in 2017 and more frequent passage of cold fronts in 2018 were attributed to the cycle of the South Atlantic subtropical high. The results demonstrate a significant coastal wind power potential, and suggest that there is a significant increase of resources offshore.

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“…Em Campinas, embora ocorra outras direções predominantes dos ventos ao longo do ano, o estudo de Barbano et al (2003) indicaram que os ventos de SE prevalecem e correspondem a 34% da série temporal. Segundo Wahrlich et al (2018), o estado de Santa Catarina caracteriza-se pelas direções predominantes de N e NE, relacionado à atuação da ASAS e, contudo, em algumas localidades a orografia e a circulação de brisa vale-montanha favorece os ventos de sudoeste (SW). Silva et al (2002) mostraram que a regiões do NEB apresenta a direção predominante dos ventos de L, com variações entre NE e SE.…”

Section: Escala Anualunclassified

Regime De Ventos Em Curitiba E Paranaguá, Paraná

Terassi

Oliveira‐Júnior

Galvani

et al. 2019

ABClima

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RESUMO: Os estudos sobre as características da velocidade e direção dos ventos são relevantes para diversos setores da sociedade, sob aspecto ambiental e econômico. Este trabalho objetiva avaliar o regime dos ventos em multiescala (anual, mensal e horária) nos municípios de Curitiba e Paranaguá (PR). Utilizaram-se os dados horários (12,18 e 0 TMG) das estações meteorológicas convencionais pertencentes ao Instituto Nacional de Meteorologia para o período de 1976 a 2010. As rosas de vento e os histogramas foram realizados por meio do programa WRPLOT versão 8.0.0. Para a elaboração dos gráficos boxplot da velocidade e direção dos ventos foram utilizados os softwares R versão 3.3.2 e Statistica 7.0. Em Curitiba verificou-se o predomínio de ventos de nordeste (18,5%) e leste (15,2%) associados à atuação da Alta Subtropical do Atlântico Sul (ASAS), enquanto que em Paranaguá a interação entre o relevo adjacente (Serra do Mar) e a circulação da brisa marítima (Oceano Atlântico) condiciona uma maior frequência de ventos de sul (15,3%). A velocidade média anual dos ventos foi 2,19 m.s -1 em Curitiba e 2,15 m.s -1 em Paranaguá. Os meses com as mais elevadas velocidades dos ventos ocorrem entre setembro e março. O ciclo diário apontou o aumento da velocidade dos ventos às 15 horas, atribuída ao aquecimento superficial e à instabilidade atmosférica, sobretudo em Paranaguá (ambiente costeiro), pois esta localidade apresenta uma temperatura média anual 4°C mais elevada em relação à Curitiba, que mostrou maiores valores de velocidade dos ventos às 9 e 21 horas em comparação à Paranaguá. PALAVRAS-CHAVES: escoamento atmosférico; fatores fisiográficos; velocidade e direção dos ventos, sistemas meteorológicos. WIND REGIME IN CURITIBA AND PARANAGUÁ, PARANÁABSTRACT: Studies about the wind speed and direction characteristics are relevant to several society sectors, both environment and economy. This paper aims to evaluate the winds regime in multiple scales (annual, monthly and hourly) in the Curitiba and Paranaguá municipalities (PR). Were used the time data (12,18 and 0 GMT) of the conventional meteorological stations belonging to the National Meteorological Institute for the period between 1976 to 2010. Wind roses and histograms were performed using WRPLOT version 8.0.0. Were used the software R version 3.3.2 and Statistica 7.0 to _________________Revista Brasileira de Climatologia_________________ ISSN: 2237-8642 (Eletrônica) Ano 15 -Vol. 25 -JUL/DEZ 2019 295 elaborate the boxplot graphics of the speed and direction winds were used. In Curitiba was observed the predominance of northeast (18.5%) and east (15.2%) direction winds associated with the performance of the South Atlantic Subtropical High (SASH), while in Paranaguá the interaction between adjacent relief (Serra do Mar) and the circulation of the maritime breeze (Atlantic Ocean) conditions a greater frequency of south winds (15,3%). The annual average wind velocity was 2.19 m.s -1 in Curitiba and 2.15 m.s -1 in Paranaguá. The months with the highest wind speeds occur betw...

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

Cited by 6 publications

References 14 publications

Climate-induced variability in South Atlantic wave direction over the past three millennia

Climate-induced variability in South Atlantic wave direction over the past three millennia

Coastal Wind Power in Southern Santa Catarina, Brazil

Regime De Ventos Em Curitiba E Paranaguá, Paraná

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