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MODERN DAY WEATHER FORECAST About Modern Forecasting: Various procedures are employed in forecasting modern day weather. Thanks to the involvement of computers, weather forecasting has reached greater levels of accuracy with the passage of time. There are various components of a weather forecasting system, which include the assimilation of data, the collection of data, the forecasting of weather, the output processing of data and the presentation of weather forecasting to the recipient. With regards the collection of data, various parameters are taken into consideration. Some of them include the direction of the wind, the speed of wind, the precipitation and the humidity of the wind. These parameters are recorded and observed by the weather stations or by skilled weather observers. The World Meteorological Organization helps in the regulation of observing practices, instrumentation, and the observation timings worldwide. Mostly two methods are employed with regards to weather reports by stations. The first one is through the METAR reports which are on an hourly basis, or through SYNOP reports which are mostly provided after every 6 hours. Procedure: Thanks to the weather balloon, it has become extremely convenient and hassle free to record and measure the humidity levels, the temperature and the wind. The data are usually calculated from the center of the stratosphere to the surface of the earth. This comes to a distance of about 100000 feet or 30000 metres. With the help of recent changes, even the information transmitted from aeroplanes through AMDAR system is used for the measurements, with regards to the parameters of weather. AMDAR method is especially used in the high air observation and mostly in the numerical models. Miscellaneous: Majority of the weather related data are provided by the weather satellites, which are used on a global basis. Although, the use of visible light images help in the prediction of weather by taking into consideration the movement of clouds, very few information can be provided with regards numerical predictions. In such cases, data assimilated from infra-red rays help in providing numerical figures with regards to weather forecasts. Infra red rays provide the cloud temperature and also, the temperature at the surface. Wind directions can be easily predicted, by taking individual clouds and tracking their movements. |
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