@MastersThesis{Alves:2007:SiVaCl,
author = "Alves, Lincoln Muniz",
title = "Simula{\c{c}}{\~o}es da variabilidade do clima presente sobre a
Am{\'e}rica do Sul utilizando um modelo clim{\'a}tico regional",
school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
year = "2007",
address = "S{\~a}o Jos{\'e} dos Campos",
month = "2007-03-26",
keywords = "previs{\~a}o de tempo e estudos clim{\'a}ticos, modelo
clim{\'a}tico regional, climatologia, previsibilidade,
meteorologia tropical, regional climate model, downscaling,
climatology, predictability, tropical meteorology.",
abstract = "O principal objetivo deste trabalho foi avaliar a destreza do
modelo regional, HadRM3P do Hadley Centre, em simular a
variabilidade sazonal dos principais padr{\~o}es
climatol{\'o}gicos sobre a regi{\~a}o da Am{\'e}rica do Sul e
oceanos adjacentes, atrav{\'e}s de simula{\c{c}}{\~o}es
num{\'e}ricas de longo prazo (1961-1990). Foram utilizados dados
m{\'e}dios sazonais climatol{\'o}gicos simulados e observados de
precipita{\c{c}}{\~a}o, temperatura do ar, press{\~a}o ao
n{\'{\i}}vel do mar e vento nos n{\'{\i}}veis de 850 e 200hPa.
Foram feita an{\'a}lises da sensibilidade do clima simulado as
condi{\c{c}}{\~o}es de fronteira e a diferentes
condi{\c{c}}{\~o}es de Temperatura da Superf{\'{\i}}cie do Mar
(TSM), em que os casos selecionados s{\~a}o considerados extremos
e contrastante, 1983 (El Nino-Oscila{\c{c}}{\~a}o Sul) e 1985
(L{\~a} Nina), como tamb{\'e}m da habilidade do modelo na
simula{\c{c}}{\~a}o da variabilidade sazonal e interanual
atrav{\'e}s da an{\'a}lise subjetiva dos campos m{\'e}dios
sazonais e da aplica{\c{c}}{\~a}o de escores para uma
verifica{\c{c}}{\~a}o quantitativa. Atrav{\'e}s destas
an{\'a}lises foi poss{\'{\i}}vel concluir que o modelo simula
razoavelmente bem n{\~a}o somente o padr{\~a}o espacial e
temporal da precipita{\c{c}}{\~a}o e temperatura, mas
tamb{\'e}m as principais caracter{\'{\i}}sticas da
circula{\c{c}}{\~a}o atmosf{\'e}rica, revelando inclusive um
ganho de detalhes da informa{\c{c}}{\~a}o. Contudo,
regionalmente, h{\'a} erros sistem{\'a}ticos que podem estar
relacionados a f{\'{\i}}sica interna do modelo (esquema de
convec{\c{c}}{\~a}o, de superf{\'{\i}}cie e topografia) e/ou
das condi{\c{c}}{\~o}es de fronteira herdadas do modelo global.
ABSTRACT: The purpose of this work was to evaluate the accuracy of
The Hadley Centre Regional Climate Model (HadRM3P) in describing
the seasonal variability of the main climatological features over
South America and adjacent (surrounding) oceans by using long-term
simulations (30 years, 1961-1990). The analysis was performed
using seasonal averages from observed and simulated precipitation,
temperature, sea level pressure and wind (850 and 200 hPa). The
impact of lateral boundary conditions and two different sea
surface temperature (SST) conditions (1983 El Niņo and 1985 La
Niņa) on the simulated climate and on the accuracy in simulating
both interannual and seasonal variability was studied subjectively
and objectively (skill scores). Precipitation and temperature
patterns in space and time as well as the main general circulation
features, including details captured by the model at finer scales
than those resolved by global model were simulated by the model.
However, regionally, there are still systematic errors which might
be related to the physics of the model (convective schemes,
topography and land surface processes) and the lateral boundary
conditions inherited from the global model.",
committee = "Chan, Chou Sin (presidente) and Orsini, Jos{\'e} Antonio Marengo
(orientador) and Fernandez, Julio Pablo Reyes and Oyama, Marcos
Daisuke and Ambrizzi, T{\'e}rcio",
copyholder = "SID/SCD",
englishtitle = "Present-day climate variability simulations over South America
using a climate regional model",
language = "pt",
pages = "98",
ibi = "6qtX3pFwXQZGivnK2Y/Qrv2A",
url = "http://urlib.net/ibi/6qtX3pFwXQZGivnK2Y/Qrv2A",
targetfile = "publicacao.pdf",
urlaccessdate = "16 jun. 2024"
}