Evaluation of the forecasting quality of meteorological fields from global climate models for Vietnam

Abstract

    In recent years, along with the development of science and technology, the quality of forecast products from global dynamical climate models has significantly improved, making an important contribution to socio-economic development. However, each forecast time, leadtime and forecasted regions,  the forecast quality is very different for one or more different models. Therefore, this study will focus on evaluating the forecasting quality of meteorological fields such as precipitation and temperature fields produced from several global climate models that are being run professionally at weather and climate forecasting centers in the world for Vietnam. Forecast products from these models are evaluated at the forecast time in the typical months of summer (July) and winter (January) with a leadtime of 1- and 3- month. The results showed that the European Center for Medium-range Weather Forecasts provides the best forecast results of precipitation field. The US National Centers for Environmental Prediction provides the worst forecast results of both precipiation and temperature fields. The forecast quality of temperature field is much better than that of precipitaton field and the best product is the product produced by the the French national meteorological service.