The Malaysian Meteorological Department (MMD) is responsible for providing weather forecasts and warning services to the public in Malaysia. They use a combination of observational data, numerical models, and human expertise to make accurate weather predictions.
Observational data includes information from weather stations, radar, and satellites, which is used to provide real-time information about current weather conditions. The MMD uses this data to initialize the numerical models, which are used to make predictions about future weather conditions.
Numerical models are mathematical models that simulate the behavior of the atmosphere. The MMD uses several models for weather forecasting, including the Global Forecast System (GFS) and the European Centre for Medium-Range Weather Forecasts (ECMWF) models, which are two of the most widely used global models for weather forecasting. These models take into account factors such as temperature, pressure, wind, and precipitation, and use equations to simulate how these factors will change over time.
The MMD also uses regional models such as the Regional Spectral Model (RSM) and the Global Environmental Multiscale (GEM) models to make more detailed predictions for specific regions in Malaysia. These models use a higher resolution than the global models, which allows them to make more accurate predictions for a specific area.
In addition to observational data and numerical models, the MMD also relies on human expertise to make accurate weather predictions. Weather forecasters at the MMD use their own knowledge of meteorology and their experience in interpreting the data from the models to make predictions about future weather conditions. They also collaborate with international meteorological organizations such as the World Meteorological Organization (WMO) and the United Nations Framework Convention on Climate Change (UNFCCC) to improve the accuracy of their predictions.
In summary, The Malaysian Meteorological Department (MMD) uses a combination of observational data, numerical models and human expertise to make accurate weather predictions. They use several models for weather forecasting, including the Global Forecast System (GFS) and the European Centre for Medium-Range Weather Forecasts (ECMWF) models, which are two of the most widely used global models for weather forecasting. They also use regional models such as the Regional Spectral Model (RSM) and the Global Environmental Multiscale (GEM) models to make more detailed predictions for specific regions in Malaysia. Additionally, the MMD also uses other weather forecasting tools such as radar and satellite imagery, and it also collaborates with international meteorological organizations to improve the accuracy of its predictions.