@InProceedings{ChanNoSuSiLyGo:2019:SuEtRC,
author = "Chan, Chou Sin and Nobre, Paulo and Sueiro, Gustavo and Silva
J{\'u}nior, Manoel Baptista and Lyra, Andr{\'e} de Arruda and
Gomes, Jorge Lu{\'{\i}}s",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Subseasonal Eta RCM run driven by the BESM global model over
Tibetan Plateau",
year = "2019",
organization = "AGU Fall Meeting",
abstract = "The Eta Regional Climate Model (Eta RCM) is used by the Center for
Weather Forecasts and Climate Studies (CPTEC) of the Brazilian
National Institute for Space Research to produce seasonal climate
forecasts since 2002. The model has also produced downscaling of
global climate models of CMIP5 to support impact and adaptation
studies and National Communications. The model has gone through
upgrades along these years, which include the modifications to a
finite volume dynamics, the cut-cells applied to the step-mountain
eta vertical coordinate, for multidecadal integrations, among
other modifications. Likewise, the Brazilian Earth System Model
(BESM) has been developed in parallel to the development of the
Eta RCM. The BESM is based on INPEs global atmospheric model, it
is coupled to the MOM5 ocean model, has produced multicentennial
integrations, and contributed to the CMIP5 dataset. The objective
of this work is to show the dynamical downscaling of the Eta RCM
driven by the BESM global model at T062L28 resolution, over the
Tibetan Plateau (TP) domain for the period between May and June
2003. The run started on the 10th April 2003. The Eta model was
setup with 40-km horizontal resolution and 38 layers, in a domain
that covers most of Asia, between 60oE-130C and 5oN-50oN. Sea
surface temperature was provided by the BESM and was updated daily
during the regional integration, whereas the lateral boundaries
were updated every 6 hours with the BESM atmospheric conditions.
The Eta RCM driven by BESM underestimates precipitation was over
most of the area, in particular over the Plateau and in the
eastern Asia. The EtaBESM run underestimates the 2-m temperature
in the western part of the Plateau but overestimates in the
eastern part and in the eastern Asia. The Eta RCM run driven by
Era-Interim reanalysis reduces the errors found in the Eta-BESM
run. Test with higher horizontal resolution in order to improve
the representation of the topography will be shown.",
conference-location = "San Francisco, CA",
conference-year = "09-13 dec.",
language = "en",
targetfile = "chou_subseasonal.pdf",
urlaccessdate = "24 abr. 2024"
}