Abstract:
[i] This work presents results, over the South American region, from the CSIRO Division of Atmospheric Research limited area model (DARLAM) and from the ninelevel general circulation model (GCM) of CSIRO (CSIRO Mk 2), within which it was nested in a one-way mode. Ten separate 30-day DARLAM simulations were performed for both January and July with a resolution of 125 km and were averaged to obtain a climatology for those months. This paper presents for the first time simulations of the January South American climate using a limited area model; previous similar studies simulated only the July climate. The goal of this study was to examine the capability of the CSIRO Mk 2 - DARLAM nested modeling system for simulating the climate in the South American region. Further, it was desired to investigate whether the higher resolution of DARLAM improves the simulated climate over various subregions, compared with the GCM and observations. With this purpose, a representative set of variables was analyzed and statistically compared. Overall, the fields simulated by the nesting system provide a better representation of the South American climate than the GCM. In particular, significant improvements are found in the nested model climatology for near-surface temperature and mean sea level pressure. Comparison of the January and July simulations shows a better wintertime performance. Some significant summertime features, like the Bolivian High, are reasonably well simulated by DARLAM, but not by the GCM. Copyright 2002 by the American Geophysical Union.
Registro:
Documento: |
Artículo
|
Título: | January and July regional climate simulation over South America |
Autor: | Nicolini, M.; Salio, P.; Katzfey, J.J.; McGregor, J.L.; Saulo, A.C. |
Filiación: | Departamento de Ciencias de la Atmósfera y Los Océanos, Ciudad Universitaria, Buenos Aires, Argentina Division of Atmospheric Research, CSIRO, Vic., Australia Centro de Investigations del mar y la Atmósfera, CONICET, UBA, Buenos Aires, Argentina Division of Atmospheric Research, CSIRQ, Private Bag No. 1, Aspendale, Vic. 3195, Australia Departamento de Ciencias de la Atmósfera y Los Océanos, Ciudad Universitaria, Pabellón 2, 2 Piso, (1428) Buenos Aires, Argentina
|
Palabras clave: | Model validation; Regional climate modeling; South America climate; Climatology; Computer simulation; Geographical regions; Pressure effects; Sea level; Statistical methods; Temperature distribution; climate modeling; regional climate; South America |
Año: | 2002
|
Volumen: | 107
|
Número: | 22
|
Página de inicio: | 12
|
Página de fin: | 1-12-13
|
DOI: |
http://dx.doi.org/10.1029/2001JD000736 |
Título revista: | Journal of Geophysical Research Atmospheres
|
Título revista abreviado: | J. Geophys. Res. D Atmos.
|
ISSN: | 01480227
|
PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_01480227_v107_n22_p12_Nicolini.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01480227_v107_n22_p12_Nicolini |
Referencias:
- Arakawa, A., Design of the UCLA general circulation model. Numerical simulation of the weather and climate (1972) Tech. Rep. No. 7, 7. , Dept. of Meteorol., Univ. of California, Los Angeles, Calif
- Carril, A., Menéndez, C., Nuñez, M., Climate change scenarios over the South American region: An intercomparison of coupled general atmosphere - Ocean circulation models (1997) Int. J. Clim., 17, pp. 1613-1633
- Chou, S.C., Nunes, A.M.B., Cavalcanti, I.F.A., Extended range forecast over South America using the regional eta model (2000) J. Geophys. Res., 105, pp. 10147-10160
- Davies, H., A lateral boundary formulation for multi-level prediction models (1976) Q. J. R. Meteorol. Soc., 102, pp. 405-418
- Dickinson, R.E., Errico, R.M., Giorgi, F., Bates, G.T., A regional climate model for the western U.S (1989) Clim. Change, 15, pp. 383-422
- Dorman, J.L., Sellers, P.J., A global climatology of albedo, roughness length and stomatal resistance for atmospheric general circulation models as represented by the simple biosphere model (SiB) (1989) J. Appl. Meteorol, 28, pp. 833-855
- Figueroa, S.N., Satyamurty, P., Silva Dias, P.L., Simulations of the summer circulation over the South American region with an eta coordinate model (1995) J. Atmos. Sci., 52, pp. 1573-1584
- Gandu, A., Geisler, J.E., A primitive equations model study of the effect of the topography on the summer circulations over tropical South America (1991) J. Atmos. Sci., 48, pp. 1822-1836
- Gandu, A., Silva Dias, P.L., Impacts of tropical heat sources on the South American tropospheric upper circulation and subsidence (1998) J. Geophys. Res., 103, pp. 6001-6015
- Gibson, J.K., Kallberg, P., Uppala, S., The ECMWF ReAnalysis (ERA) project (1996) ECMWF Newsl., 73, pp. 7-17
- Gibson, J.K., Kallberg, P., Uppala, S., Hernandez, A., Nomura, A., Serrano, E., (1997) ECMWF ReAnalysis Project Rep. Ser., 1, 72p. , Eur. Cent. for Medium-Range Weather Forecast, Reading, U. K
- Giorgi, F., Simulation of regional climate using a limited area model nested in a general circulation model (1990) J. Clim., 3, pp. 941-963
- Giorgi, F., Marinucci, M.R., Validation of a regional atmospheric model over Europe: Sensitivity of wintertime and summertime simulations to selected physics parametrization and lower boundary conditions (1991) Q. J. R. Meteorol. Soc., 117, pp. 1171-1206
- Giorgi, F., Marinucci, M.R., An investigation of the sensitivity of simulated precipitation to model resolution and its implications for climate studies (1996) Mon. Wea. Rev., 124, pp. 148-166
- Giorgi, F., Marinucci, M.R., Improvements in the simulation of surface climatology over the European region with a nested modeling system (1996) Geophys. Res. Lett., 23, pp. 273-276
- Giorgi, F., Marinucci, M.R., Visconti, G., Use of a limited area model nested in a general circulation model for regional climate simulation over Europe (1990) J. Geophys. Res., 95, pp. 18143-18431
- Giorgi, F., Marinucci, M.R., Visconti, G., A 2XCO2 climate change scenario over Europe generated using a limited area model nested in a general ciculation model, 2, Climate change scenario (1992) J. Geophys. Res., 97, pp. 10011-10028
- Giorgi, F., Brodeur, C.S., Bates, G.T., Regional climate change scenarios over the United States produced with a nested regional climate model (1994) J. Clim., 7, pp. 375-399
- Jenkins, G.S., Barron, E.J., Global climate model and coupled regional climate model simulation over the eastern United States: GENESIS and RegCM2 simulations (1997) Global Planet. Change, 15, pp. 3-32
- Joubert, A., Katzfey, J.J., McGregor, J.L., Nguyen, K.C., Simulating midsummer climate over Southern Africa using a nested regional climate model (1999) J. Geophys. Res., 104, pp. 19015-19025
- Kalnay, E., NCEP/NCAR 40-year reanalysis project (1996) Bull. Am. Meteorol. Soc., 77, pp. 437-471
- Katz, R.W., Role of statistics in the validation of general circulation models (1992) Clim. Res., 2, pp. 35-45
- Labraga, J.C., The climate change in South America due to a doubling in the CO <inf>2</inf> concentration: Intercomparison of general circulation models equilibrium experiments (1997) Int. J. Clim., 17, pp. 377-398
- Lenters, J., Cook, H., On the origin of the Bolivian High and related circulation features of the South American climate (1997) J. Atmos. Sci., 54, pp. 656-677
- Liebmann, B., Kiladis, G.N., Marengo, J.A., Ambrizzi, T., Glick, J.D., Submonthly connective variability over South America and the South Atlantic convergence zone (1999) J. Clim., 12, pp. 1877-1891
- Louis, J.-F., A parametric model of vertical eddy fluxes in the atmosphere (1979) Bound. Layer Meteorol., 17, pp. 187-202
- McGregor, J.L., Accuracy and initialization of a two-time-level split semi-Lagrangian model (1987) Short and Medium-range Numerical Weather Prediction, pp. 233-246. , edited by T. Matsuno Meteorol. Soc. of Jpn., Tokyo
- McGregor, J.L., Regional climate modelling (1997) Meteorol. Atmos. Phys., 63, pp. 105-117
- McGregor, J.L., Walsh, K., Nested simulations of perpetual January climate over the Australian region (1993) J. Geophys. Res., 95, pp. 23283-23290
- McGregor, J.L., Walsh, K., Climate change simulations of Tasmanian precipitation using multiple nesting (1994) J. Geophys. Res., 99, pp. 20889-20905
- Menéndez, C., Saulo, C., Li, L., Simulation of South American winter time climate with a nested modelling system (2000) Clim. Dyn., 17, pp. 219-231
- Minetti, J., Vargas, W., Behavior over South America in the periphery of the subtropical anticyclone, First Part (in Spanish) (1983) Meteorologica, 14, pp. 645-656
- Nogués-Paegle, J., Mo, K.C., Alternating wet and dry conditions over South America during summer (1997) Mon. Wea. Rev., 125, pp. 279-291
- Renwick, J.A., Katzfey, J.J., Nguyen, K.C., McGregor, J.L., Regional model simulations of New Zealand climate (1998) J. Geophys. Res., 103, pp. 5973-5982
- Schwerdtfeger, W., (1976) Climates of Central and South America, World Surv. Climatol., 12, 522p. , Elsevier Sci., New York
- Stidd, C.K., Cube-root normal precipitations distributions (1953) Trans. AGU, 34, pp. 31-35
- Walsh, K., McGregor, J.L., January and July climate simulations over the Australian region using a limited area model (1995) J. Clim., 8, pp. 2387-2403
- Walsh, K., McGregor, J.L., Simulations of Antarctic climate using a limited area model (1996) J. Geophys. Res., 101, pp. 19093-19108
- Watterson, I.G., Dix, M.R., Gordon, H.B., McGregor, J.L., The CSIRO nine level atmospheric general circulation model and its equilibrium present and doubled CO<inf>2</inf> climates (1995) Aust. Meteorol. Mag., 44, pp. 111-125
- Xie, P., Arkin, P.A., Global precipitation: A 17-year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs (1997) Bull. Am. Meteorol. Soc., 75, pp. 2539-2558
Citas:
---------- APA ----------
Nicolini, M., Salio, P., Katzfey, J.J., McGregor, J.L. & Saulo, A.C.
(2002)
. January and July regional climate simulation over South America. Journal of Geophysical Research Atmospheres, 107(22), 12-1-12-13.
http://dx.doi.org/10.1029/2001JD000736---------- CHICAGO ----------
Nicolini, M., Salio, P., Katzfey, J.J., McGregor, J.L., Saulo, A.C.
"January and July regional climate simulation over South America"
. Journal of Geophysical Research Atmospheres 107, no. 22
(2002) : 12-1-12-13.
http://dx.doi.org/10.1029/2001JD000736---------- MLA ----------
Nicolini, M., Salio, P., Katzfey, J.J., McGregor, J.L., Saulo, A.C.
"January and July regional climate simulation over South America"
. Journal of Geophysical Research Atmospheres, vol. 107, no. 22, 2002, pp. 12-1-12-13.
http://dx.doi.org/10.1029/2001JD000736---------- VANCOUVER ----------
Nicolini, M., Salio, P., Katzfey, J.J., McGregor, J.L., Saulo, A.C. January and July regional climate simulation over South America. J. Geophys. Res. D Atmos. 2002;107(22):12-1-12-13.
http://dx.doi.org/10.1029/2001JD000736