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      Multi-model ensemble forecasting of rainfall over Indian monsoon region

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          Abstract

          In the present study, a method is proposed for the ensemble forecasting of rainfall over the Indian monsoon region based on daily outputs of four operational numerical weather prediction (NWP) models in the short-range time scale (up to 48 hours). The method is applied to prepare 24 and 48 hours ensemble forecastings of rainfall in the test mode daily during the summer monsoon 2006, using the rainfall prediction of constituent models with the pre-assigned grid point weights. The prediction skill of the ensemble forecasts is examined against observations and corresponding outputs of each constituent model. The intercomparison reveals that the method is capable to improve the forecast by taking the strength of each constituent model. The method has the potential for operational application.

          Translated abstract

          En este trabajo se propone un método para el ensamble del pronóstico de lluvia sobre la región del monzón de la India con base en las salidas diarias de cuatro modelos operacionales de predicción numérica del tiempo (NWP, por sus siglas en inglés) a escala temporal corta (hasta 48 horas). El método se utiliza para preparar un ensamble de predicción de lluvia de 24 y 48 horas en el modo de prueba diario durante el monzón del verano de 2006, utilizando la predicción de precipitación de los modelos constituyentes con los pesos de los puntos preasignados de la matriz. La habilidad de predicción del ensamble se prueba contra las observaciones y las salidas correspondientes a cada uno de los modelos constituyentes. La intercomparación revela que el método es capaz de mejorar el pronóstico al considerar la fuerza de cada uno de los modelos. El método tiene potencial para ser aplicado operacionalmente.

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          Deterministic Nonperiodic Flow

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            Ensemble Forecasting at NCEP and the Breeding Method

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              A study of the predictability of a 28-variable atmospheric model

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                Author and article information

                Journal
                atm
                Atmósfera
                Atmósfera
                Universidad Nacional Autónoma de México, Centro de Ciencias de la Atmósfera (Ciudad de México, Ciudad de México, Mexico )
                0187-6236
                July 2008
                : 21
                : 3
                : 225-239
                Affiliations
                [01] orgnameIndia Meteorological Department India skrb@ 123456imdmail.gov.in
                Article
                S0187-62362008000300001 S0187-6236(08)02100300001
                5cef1936-63c2-4036-97e3-71f7f8c0ccef

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 24 October 2007
                : 16 May 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 12, Pages: 15
                Product

                SciELO Mexico


                Numerical weather prediction,rainfall prediction skill,ensemble forecasting

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