Downscaling extreme month-long anomalies in southern South America
We investigate the performance of one stretched-grid atmospheric global model, five different regional climate models and a statistical downscaling technique in simulating 3 months (January 1971, November 1986, July 1996) characterized by anomalous climate conditions in the southern La Plata Basin....
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01650009_v98_n3_p379_Menendez http://hdl.handle.net/20.500.12110/paper_01650009_v98_n3_p379_Menendez |
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paper:paper_01650009_v98_n3_p379_Menendez2023-06-08T15:14:28Z Downscaling extreme month-long anomalies in southern South America Menendez, Claudio Guillermo D'Onofrio, Alejandro Sorensson, Anna Amelia Blazquez, Josefina Nuñez, Mario Néstor Pessacg, Natalia Liz Rolla, Alfredo Luis Solman, Silvina Alicia Anomalous climate Down-scaling Dynamical model Global models Heavy precipitation La Plata basin Reanalysis Regional climate models South America Statistical downscaling Statistical techniques Climate change Climate models climate modeling downscaling precipitation (climatology) regional climate simulation spatiotemporal analysis La Plata Basin We investigate the performance of one stretched-grid atmospheric global model, five different regional climate models and a statistical downscaling technique in simulating 3 months (January 1971, November 1986, July 1996) characterized by anomalous climate conditions in the southern La Plata Basin. Models were driven by reanalysis (ERA-40). The analysis has emphasized on the simulation of the precipitation over land and has provided a quantification of the biases of and scatter between the different regional simulations. Most but not all dynamical models underpredict precipitation amounts in south eastern South America during the three periods. Results suggest that models have regime dependence, performing better for some conditions than others. The models' ensemble and the statistical technique succeed in reproducing the overall observed frequency of daily precipitation for all periods. But most models tend to underestimate the frequency of dry days and overestimate the amount of light rainfall days. The number of events with strong or heavy precipitation tends to be under simulated by the models. © The Author(s) 2009. Fil:Menéndez, C.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:D'Onofrio, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sörensson, A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Blazquez, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Núñez, M.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pessacg, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rolla, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Solman, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01650009_v98_n3_p379_Menendez http://hdl.handle.net/20.500.12110/paper_01650009_v98_n3_p379_Menendez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Anomalous climate Down-scaling Dynamical model Global models Heavy precipitation La Plata basin Reanalysis Regional climate models South America Statistical downscaling Statistical techniques Climate change Climate models climate modeling downscaling precipitation (climatology) regional climate simulation spatiotemporal analysis La Plata Basin |
| spellingShingle |
Anomalous climate Down-scaling Dynamical model Global models Heavy precipitation La Plata basin Reanalysis Regional climate models South America Statistical downscaling Statistical techniques Climate change Climate models climate modeling downscaling precipitation (climatology) regional climate simulation spatiotemporal analysis La Plata Basin Menendez, Claudio Guillermo D'Onofrio, Alejandro Sorensson, Anna Amelia Blazquez, Josefina Nuñez, Mario Néstor Pessacg, Natalia Liz Rolla, Alfredo Luis Solman, Silvina Alicia Downscaling extreme month-long anomalies in southern South America |
| topic_facet |
Anomalous climate Down-scaling Dynamical model Global models Heavy precipitation La Plata basin Reanalysis Regional climate models South America Statistical downscaling Statistical techniques Climate change Climate models climate modeling downscaling precipitation (climatology) regional climate simulation spatiotemporal analysis La Plata Basin |
| description |
We investigate the performance of one stretched-grid atmospheric global model, five different regional climate models and a statistical downscaling technique in simulating 3 months (January 1971, November 1986, July 1996) characterized by anomalous climate conditions in the southern La Plata Basin. Models were driven by reanalysis (ERA-40). The analysis has emphasized on the simulation of the precipitation over land and has provided a quantification of the biases of and scatter between the different regional simulations. Most but not all dynamical models underpredict precipitation amounts in south eastern South America during the three periods. Results suggest that models have regime dependence, performing better for some conditions than others. The models' ensemble and the statistical technique succeed in reproducing the overall observed frequency of daily precipitation for all periods. But most models tend to underestimate the frequency of dry days and overestimate the amount of light rainfall days. The number of events with strong or heavy precipitation tends to be under simulated by the models. © The Author(s) 2009. |
| author |
Menendez, Claudio Guillermo D'Onofrio, Alejandro Sorensson, Anna Amelia Blazquez, Josefina Nuñez, Mario Néstor Pessacg, Natalia Liz Rolla, Alfredo Luis Solman, Silvina Alicia |
| author_facet |
Menendez, Claudio Guillermo D'Onofrio, Alejandro Sorensson, Anna Amelia Blazquez, Josefina Nuñez, Mario Néstor Pessacg, Natalia Liz Rolla, Alfredo Luis Solman, Silvina Alicia |
| author_sort |
Menendez, Claudio Guillermo |
| title |
Downscaling extreme month-long anomalies in southern South America |
| title_short |
Downscaling extreme month-long anomalies in southern South America |
| title_full |
Downscaling extreme month-long anomalies in southern South America |
| title_fullStr |
Downscaling extreme month-long anomalies in southern South America |
| title_full_unstemmed |
Downscaling extreme month-long anomalies in southern South America |
| title_sort |
downscaling extreme month-long anomalies in southern south america |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01650009_v98_n3_p379_Menendez http://hdl.handle.net/20.500.12110/paper_01650009_v98_n3_p379_Menendez |
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1768542076919611392 |