@MastersThesis{Mattos:2006:SeUsPs,
author = "Mattos, Jo{\~a}o Gerd Zell de",
title = "Sensibilidade do uso de {"}Pseudo-temps{"} na
assimila{\c{c}}{\~a}o de dados do modelo de
circula{\c{c}}{\~a}o geral atmosf{\'e}rica do CPTEC/COLA",
school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
year = "2006",
address = "S{\~a}o Jos{\'e} dos Campos",
month = "2006-12-05",
keywords = "assimila{\c{c}}{\~a}o de dados, modelagm atmosf{\'e}rica,
sistema de observa{\c{c}}{\~a}o, radiossondagem, pseudo-temps,
data assimilation, numerical weather prediction, pseudo-temps,
observation system, rawindsonde.",
abstract = "Utilizando o sistema de assimila{\c{c}}{\~a}o de dados
Physical-space Statistical Analysis System em conjunto com o
Modelo de Circula{\c{c}}{\~a}o Geral da Atmosfera, aplica-se o
uso das Pseudo-Temps na gera{\c{c}}{\~a}o da
condi{\c{c}}{\~a}o inicial utilizada para integrar deste modelo.
O uso das Pseudo-Temps busca uma melhor representa{\c{c}}{\~a}o,
por parte do modelo, dos fen{\^o}menos atmosf{\'e}ricos na
Am{\'e}rica do Sul, regi{\~a}o esta que apresenta relativa
escassez de radiossondagens principalmente na Bol{\'{\i}}via,
Paraguai e Peru. Para a coleta das Pseudo-Temps, foram utilizadas
as an{\'a}lises do European Centre for Medium range Weather
Forecast e do National Centers for Environmental Predicton. Os
resultados obtidos nos experimentos realizados com as Pseudo-Temps
foram comparados com as previs{\~o}es sem a inclus{\~a}o de
Pseudo-Temps, com as rean{\'a}lises produzidas com os dados
obtidos do South America Low Level Jet Experiment e com dados de
esta{\c{c}}{\~o}es em superf{\'{\i}}cie sobre a Am{\'e}rica
do Sul. Al{\'e}m disto realizaram-se dois estudos sin{\'o}ticos
apresentando as principais diferen{\c{c}}as ocasionadas com a
inclus{\~a}o dos dados extras. Os resultados obtidos com estas
an{\'a}lises mostraram que a utiliza{\c{c}}{\~a}o das
Pseudo-Temps proporcionou um impacto positivo nas previs{\~o}es
do MCGA. Verificou-se que as principais melhorias se deram abaixo
de 30oS e o prazo {\'u}til das previs{\~o}es apresentou um
aumento significativo. ABSTRACT: Using the data assimilation
system Physical-space Statistical Analysis System with the
Atmospheric Global Circulation Model Pseudo-Temps are used to
generate initial conditions to integrate this model. The use of
Pseudo-Temps aims to improve the model representation of the
atmospheric conditions over South America. In this region there is
a lack of radiossondes observations mainly in Bolivia, Paraguay
and Peru. The Pseudo-Temps were extracted from the European Centre
for Medium range Weather Forecast and from the National Centers
for Environmental Predicton analyses. The obtained results were
compared with forecasts without Pseudo-Temps, with the reanalysis
produced with the South America Low Level Jet Experiment data, and
with observed data from South America. Moreover, two synoptic case
studies were done presenting the main differences due to the
inclusion of the extra data. The results show that there is a
positive impact in the model forecasts due to the use
Pseudo-Temps. It was also verified that the main improvements
occured below 30oS and the forecast range presented a significant
increase.",
committee = "Bonatti, Jos{\'e} Paulo (presidente) and Ferreira, Nelson Jesus
(orientador) and Herdies, Dirceu Luis (orientador) and Fernandez,
Julio Pablo Reyes and Gon{\c{c}}alves, Luis Gustavo
Gon{\c{c}}alves de",
copyholder = "SID/SCD",
englishtitle = "Sensitivity using {"}pseudo-temps{"} in the data assimilation of
the atmospheric global circulation model of the CPTEC/COLA",
language = "pt",
pages = "129",
ibi = "6qtX3pFwXQZGivnK2Y/Pbas6",
url = "http://urlib.net/ibi/6qtX3pFwXQZGivnK2Y/Pbas6",
targetfile = "publicacao.pdf",
urlaccessdate = "02 maio 2024"
}