%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3EUPEJL
%@nexthigherunit 8JMKD3MGPCW/43SKC35
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JGRQ
%3 Mesinger_et_al_2012.pdf
%X Upgrades implemented over a number of years in an open source version of the Eta model, posted at the CPTEC web site http://www.emc.ncep.noaa.gov/mmb/wrkstn_eta, which differs from the NCEP's latest operational Eta by having the WRF-NMM nonhydrostatic option included. Most of the upgrades made resulted from attention paid to less than satisfactory performance noted in several Eta results, and identification of the reasons for the problem. Others came from simple expectation that including a feature that is physically justified but is missing in the code should help. The most notable of the upgrades are the introduction of the so-called sloping steps, or discretized shaved cells topography; piecewise-linear finite-volume vertical advection of dynamic variables; vapor and hydrometeor loading in the hydrostatic equation, and changes aimed at refining the convection schemes available in the Eta. Several other modifications have to do with the calculation of exchange coefficients, conservation in the vertical diffusion, and diagnostic calculation of 10-m winds. Several examples showing improved performance resulting from the dynamics changes are given. One includes a case of unrealistically low temperatures in several mountain basins generated by a centered vertical advection difference scheme's unphysical advection from below ground, removed by its replacement with a finite-volume scheme. Another is that of increased katabatic winds in the Terra Nova Bay Antarctica region. Successful forecast of the severe downslope zonda wind case in the lee of the highest peaks of the Andes is also shown, and some of the recent successful verification results of the use of the upgraded model are pointed out. The code is used at numerous places, and along with setup information it is available for outside users at the CPTEC Eta web site given above.
%8 May
%N 3-4
%T An upgraded version of the Eta model
%@electronicmailaddress fedor@essic.umd.edu
%@electronicmailaddress chou@pesquisador.cnpq.br
%@secondarytype PRE PI
%K pressure-gradient force, volume integration method, step-mountain coordinate, convective parameterization, single-column, scheme, precipitation, atmosphere, advection, impact.
%@archivingpolicy denypublisher denyfinaldraft12
%@usergroup administrator
%@usergroup lattes
%@usergroup secretaria.cpa@dir.inpe.br
%@group
%@group DMD-CPT-INPE-MCTI-GOV-BR
%@group CPT-CPT-INPE-MCTI-GOV-BR
%@group
%@group
%@group CPT-CPT-INPE-MCTI-GOV-BR
%@group
%@group CPT-CPT-INPE-MCTI-GOV-BR
%@e-mailaddress chou@pesquisador.cnpq.br
%@secondarymark B1_GEOCIÊNCIAS B1_INTERDISCIPLINAR
%F lattes: 4336175279058172 2 MesingerCGJBBLLMRV:2012:UpVeEt
%@issn 0177-7971
%2 dpi.inpe.br/plutao/2012/06.21.21.30.43
%@affiliation Univ Maryland, ESSIC, College Pk, MD 20742 USA
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation NCEP Environm Modeling Ctr, Camp Springs, MD USA
%@affiliation Brazilian AF, Brasilia, DF, Brazil
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Univ Belgrade, Inst Meteorol, Belgrade, Serbia
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Univ Modena & Reggio Emilia, Dept Phys, Modena, Italy
%@affiliation Weather2Umbrella Co, Belgrade, Serbia
%@affiliation Univ Belgrade, Inst Meteorol, Belgrade, Serbia
%B Meteorology and Atmospheric Physics
%@versiontype publisher
%P 63-79
%4 dpi.inpe.br/plutao/2012/06.21.21.30
%@documentstage not transferred
%D 2012
%V 116
%@doi 10.1007/s00703-012-0182-z
%O Setores de Atividade: Pesquisa e desenvolvimento científico.
%A Mesinger, Fedor,
%A Chan, Chou Sin,
%A Gomes, Jorge L.,
%A Jovic, Dusan,
%A Bastos, Paulo,
%A Bustamante, Josiane F.,
%A Lazic, Lazar,
%A Lyra, André A.,
%A Morelli, Sandra,
%A Ristic, Ivan,
%A Veljovic, Katarina,
%@dissemination WEBSCI; PORTALCAPES; COMPENDEX.
%@area MET