@MastersThesis{Gisler:2009:AnPeVe,
author = "Gisler, Carlos Alberto Ferreira",
title = "An{\'a}lise do perfil de vento na camada limite superficial e
sistemas meteorol{\'o}gicos atuantes no Centro de
Lan{\c{c}}amento de Alcant{\^a}ra",
school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
year = "2009",
address = "S{\~a}o Jos{\'e} dos Campos",
month = "2009-05-25",
keywords = "torre anemom{\'e}trica, distribui{\c{c}}{\~a}o de Weibull,
distribui{\c{c}}{\~a}o beta, an{\'a}lise componente principal
(ACP), anemometer tower , Weibull distribution, beta distribution,
principal component analysis (PCA).",
abstract = "O presente trabalho objetivou a realiza{\c{c}}{\~a}o de uma
an{\'a}lise criteriosa dos perfis de velocidade e
dire{\c{c}}{\~a}o do vento e as caracter{\'{\i}}sticas dos
sistemas atmosf{\'e}ricos associados, com base nos dados de vento
coletados pela Torre Anemom{\'e}trica(TA) do Centro de
Lan{\c{c}}amento de Alc{\^a}ntara (CLA), inclusive
verificando-se a qualidade dos dados coletados neste centro. Os
dados de vento coletados na TA s{\~a}o do per{\'{\i}}odo de
1995 a 1999, obtidos em seis n{\'{\i}}veis diferentes (6,0;
10,0; 16,3; 28,5; 43,0 and 70,0 m). Para an{\'a}lise dos dados
foram ajustadas as distribui{\c{c}}{\~o}es estat{\'{\i}}sticas
Beta, Normal e Weibull, identificando a melhor
aproxima{\c{c}}{\~a}o do conjunto {\`a}s
distribui{\c{c}}{\~o}es. A distribui{\c{c}}{\~a}o de Weibull,
para o per{\'{\i}}odo de estudo, apresentou bom ajuste para
valores entre 3,0 ms^1 e 9 ms^1 e a distribui{\c{c}}{\~a}o
Normal apresentou bom ajuste para valores entre 4,0 ms^1 e 9,0
ms^1. A correla{\c{c}}{\~a}o entre os valores de velocidade e
dire{\c{c}}{\~a}o do vento para os n{\'{\i}}veis da TA foi
realizada e os resultados mostraram de que os perfis est{\~a}o
superiores a 0,70 indicando forte correla{\c{c}}{\~a}o entre os
n{\'{\i}}veis. Foi utilizada a t{\'e}cnica de An{\'a}lise das
Componentes Principais (ACP) nos perfis verticais de vento, a qual
permitiu a an{\'a}lise das estruturas existentes nos perfis e a
identifica{\c{c}}{\~a}o da influ{\^e}ncia dos sistemas
atmosf{\'e}ricos nos perfis verticais do vento. As componentes
principais da dire{\c{c}}{\~a}o da velocidade para a {\'e}poca
chuvosa (representada pelo m{\^e}s de mar{\c{c}}o) apresentam
percentuais de 60% na 1ACP, 20% para a 2ACP e 10% para 3 ACP,
estes associados {\`a}s freq{\"u}{\^e}ncias dos sistemas
atuantes no CLA. A an{\'a}lise da ACP da velocidade do vento na
1ACP apresentou percentual superior a 93%, em ambos os
per{\'{\i}}odos (chuvoso ou seco) associado a um processo
f{\'{\i}}sico predominante na regi{\~a}o do CLA (brisa
mar{\'{\i}}tima). Foi tamb{\'e}m realizado um estudo de caso da
esta{\c{c}}{\~a}o chuvosa (mar{\c{c}}o) de 2005, visando
analisar os perfis de vento e sistemas atmosf{\'e}ricos.
ABSTRACT: This study aimed to conduct a thorough analysis of the
profiles of wind speed and direction and the atmospheric systems
characteristics associated with the data collected by the Tower of
Wind or Anemometric Tower (TA) at the Alc{\^a}ntara Launching
Center, including the verification of the data quality collected
in this center. The wind data was collected at the TA from the
period from 1995 to 1999 and it was obtained in six different
levels (6,0; 10,0; 16,3; 28,5; 43,0 and 70,0 m). The statistical
distributions Beta, Normal and Weibull distribution were adjusted
for analysis, identifying the best approximation of the complex to
the distributions. The Weibull distribution for the period of
study presented a good adjustment for values between 3.0 and 9
ms-1 as well as the and Normal distribution a good adjustment for
values between 4.0 and 9.0 ms-1. The correlation between the
values of wind speed and direction for the levels of TA was
performed and the results showed that the profiles are higher than
0.70 (strong correlation). The study made use of the technique of
Principal Components Analysis (PCA) in vertical profiles of wind
which allowed the identification of existing structures in the
profiles and the identification of the influence of atmospheric
systems in wind vertical profiles. The components of the direction
of speed for the rainy season (March) present percentage of 60% in
1ACP, 20% for 2ACP and 10% for 3 ACP. This information is
associated with the frequencies of the systems operating in the
CLA. Regarding the analysis of wind speed of ACP, it was presented
in 1ACP percentage above 93%, in both periods (rainy or dry)
associated with a predominant physical process in the CLA. It was
also carried out a case study on a rainy season in March 2005 in
order to analyze the wind profiles and the atmospheric systems.
According to this paper, it is possible to identify and the
understanding of the dynamics existing in the superficial limit
layer in the CLA.",
committee = "Sansigolo, Cl{\'o}vis Angeli (presidente) and Fisch, Gilberto
Fernando (orientador) and Silva, Bernado Barbosa da",
copyholder = "SID/SCD",
englishtitle = "Analysis of the wind profile in the surface boundary layer and
meteorological systems at the alcantara launching",
language = "pt",
pages = "143",
ibi = "8JMKD3MGP8W/357D2BB",
url = "http://urlib.net/ibi/8JMKD3MGP8W/357D2BB",
targetfile = "publicacao.pdf",
urlaccessdate = "17 maio 2024"
}