globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-013-1916-4
Scopus记录号: 2-s2.0-84906941453
论文题名:
The surface radiation budget over South America in a set of regional climate models from the CLARIS-LPB project
作者: Pessacg N.L.; Solman S.A.; Samuelsson P.; Sanchez E.; Marengo J.; Li L.; Remedio A.R.C.; da Rocha R.P.; Mourão C.; Jacob D.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期:2017-05-06
起始页码: 1221
结束页码: 1239
语种: 英语
英文关键词: Heat fluxes ; Regional climate models ; South America ; Surface radiation budget ; Uncertainties
英文摘要: The performance of seven regional climate models in simulating the radiation and heat fluxes at the surface over South America (SA) is evaluated. Sources of uncertainty and errors are identified. All simulations have been performed in the context of the CLARIS-LPB Project for the period 1990-2008 and are compared with the GEWEX-SRB, CRU, and GLDAS2 dataset and NCEP-NOAA reanalysis. Results showed that most of the models overestimate the net surface short-wave radiation over tropical SA and La Plata Basin and underestimate it over oceanic regions. Errors in the short-wave radiation are mainly associated with uncertainties in the representation of surface albedo and cloud fraction. For the net surface long-wave radiation, model biases are diverse. However, the ensemble mean showed a good agreement with the GEWEX-SRB dataset due to the compensation of individual model biases. Errors in the net surface long-wave radiation can be explained, in a large proportion, by errors in cloud fraction. For some particular models, errors in temperature also contribute to errors in the net long-wave radiation. Analysis of the annual cycle of each component of the energy budget indicates that the RCMs reproduce generally well the main characteristics of the short- and long-wave radiations in terms of timing and amplitude. However, a large spread among models over tropical SA is apparent. The annual cycle of the sensible heat flux showed a strong overestimation in comparison with the reanalysis and GLDAS2 dataset. For the latent heat flux, strong differences between the reanalysis and GLDAS2 are calculated particularly over tropical SA. © 2013 Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54589
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作者单位: Centro Nacional Patagónico (CENPAT/CONICET), Blvrd. Brown 282.5, U9120ACF Puerto Madryn, Chubut, Argentina; Centro de Investigaciones Del Mar y la Atmósfera (CIMA/CONICET-UBA), DCAO/FCEN, UMI IFAECI/CNRS, Ciudad Universitaria Pabellón II Piso 2, C1428EGA Buenos Aires, Argentina; Rossby Centre, SMHI, 601 76 Norrköping, Sweden; Facultad Ciencias Ambientales y Bioquimica, Universidad de Castilla-La Mancha, Toledo, Spain; Centro de Ciencia do Sistema Terrestre-Instituto Nacional de Pesquisas Espaciais (CCST INPE), Rodovia Dutra km, 40, Cachoeira Paulista, São Paulo, 12630-000, Brazil; Laboratoire de Météorologie Dynamique, IPSL, CNRS/UPMC, Paris, France; Max Planck Institute for Meteorology, 20146 Hamburg, Germany; Departamento de Ciências Atmosféricas, Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universida de de São Paulo, São Paulo, Brazil; Climate Service Center, 20095 Hamburg, Germany

Recommended Citation:
Pessacg N.L.,Solman S.A.,Samuelsson P.,et al. The surface radiation budget over South America in a set of regional climate models from the CLARIS-LPB project[J]. Climate Dynamics,2014-01-01,43(2017-05-06)
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