@InProceedings{TeixeiraMarPerSouLim:2015:AnSeRe,
author = "Teixeira, Venize Assun{\c{c}}{\~a}o and Martins, Fernando R. and
Pereira, Enio Bueno and Souza, Jefferson Gon{\c{c}}alves de and
Lima, Francisco Jos{\'e} Lopes de",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "An{\'a}lise da sensibilidade da resolu{\c{c}}{\~a}o vertical do
modelo WRF para simula{\c{c}}{\~a}o de radia{\c{c}}{\~a}o
solar no estado do Cear{\'a}",
booktitle = "P{\^o}steres",
year = "2015",
organization = "Simp{\'o}sio Internacional de Climatologia, 6. (SIC)",
keywords = "Modelo Atmosf{\'e}rico, Modelo WRF, Model Atmospheric, model
WRF.",
abstract = "O estudo avaliou a sensibilidade de diferentes
resolu{\c{c}}{\~o}es verticais (27 n{\'{\i}}veis, 45
n{\'{\i}}veis e 65 n{\'{\i}}veis) do modelo WRF para
radia{\c{c}}{\~a}o solar, na resolu{\c{c}}{\~a}o horizontal de
16km e 4km, em localidades com caracter{\'{\i}}sticas de
altitude e clima diferentes do Cear{\'a}. Para a
parametriza{\c{c}}{\~a}o de radia{\c{c}}{\~a}o utilizou-se a
parametriza{\c{c}}{\~a}o RRTM (Mlawer et al.,1997) para
radia{\c{c}}{\~a}o de onda longa e Dudhia (Dudhia,1989) para
radia{\c{c}}{\~a}o de onda curta. As simula{\c{c}}{\~o}es
foram realizadas com o modelo WRF para os tr{\^e}s primeiros dias
do m{\^e}s de mar{\c{c}}o de 2009. Utilizou-se os dados
observacionais hor{\'a}rios de radia{\c{c}}{\~a}o solar
provenientes das Plataformas de Coleta de Dados (PCDs) da FUNCEME
operando em Itapipoca no norte cearense; Acara{\'u} no Litoral
Cearense; Acopiara e Cedro localizadas no Centro-Sul cearense. Os
resultados mostraram que em todas as localidades ocorrem
dificuldades em simular o efeito das nuvens sobre a
irradia{\c{c}}{\~a}o terrestre. Contudo, o aumento da
resolu{\c{c}}{\~a}o vertical se mostrou favor{\'a}vel em muitos
casos. Nas regi{\~o}es da por{\c{c}}{\~a}o Norte do estado
(Acara{\'u} e Itapipoca) o aumento da resolu{\c{c}}{\~a}o
vertical de 27 n{\'{\i}}veis para 65 n{\'{\i}}veis reduziu o
Vi{\'e}s e o RSME em mais de 50% para Acara{\'u} e 15% em
Itapipoca. Nas localidades do Centro-Sul cearense (Acopiara e
Cedro), n{\~a}o se observou uma rela{\c{c}}{\~a}o direta entre
o aumento da resolu{\c{c}}{\~a}o vertical e a efici{\^e}ncia
das simula{\c{c}}{\~o}es, contudo, na maioria das
simula{\c{c}}{\~o}es com 45 n{\'{\i}}veis e 65 n{\'{\i}}veis
observou-se melhorias quando comparados com as de 27
n{\'{\i}}veis. Os resultados contribu{\'{\i}}ram
significativamente para uma simula{\c{c}}{\~a}o mais eficiente
da irradia{\c{c}}{\~a}o Solar no estado do Cear{\'a}. ABSTRACT:
This study evaluated the performance of mesoscale model WRF to
forecast solar irradiation at the surface in order to establish
the best model set up for the Brazilian Northeastern region.
Sensitivity tests were performed using different vertical
resolutions (27 levels, 45 levels and 65 levels) . Two horizontal
resolutions were evaluated: 16km and 4km. The RRTM scheme was used
to parameterize the radiative processes for longwave radiation and
Dudhia method was used for shortwave radiation. The simulations
were performed with the WRF model for the first three days of
March 2009. Observational data acquired at four ground sites with
typical climate characteristics of Brazilian Northeastern region
were used to evaluated the model performance. The hourly solar
radiation data was acquired in automatic weather stations operated
by FUNCEME at the coastal area (Itapipoca and Acara{\'u}) and at
the semi-arid area (Acopiara and Cedro) of Cear{\'a}. The results
showed that it is quite important to evaluate the optimal
configuration of the mesoscale model WRF before start using it to
forecast solar irradiation in Brazilian Northeastern region due to
the particular climate features observed in the region, mainly
related to the effect of clouds on surface solar irradiation.
However, increasing the vertical resolution proved favorable in
many cases. The higher vertical resolution reduced the bias and
RSME in more than 50% for Acara{\'u} and 15% for Itapipoca in
coastal area. In the localities of Acopiara and Cedro, there was
no direct relationship between increased vertical resolution and
the efficiency of the simulations, however, most of the
simulations with 45 levels and 65 levels observed improvements
when compared to the 27 levels. The results significantly
contributed to a more efficient simulation of solar irradiation in
the state of Cear{\'a}.",
conference-location = "Natal, RN",
conference-year = "13-16 out.",
language = "pt",
targetfile = "1_teixeira2.pdf",
urlaccessdate = "30 abr. 2024"
}