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  2. European Centre for Medium-Range Weather Forecasts

    en.wikipedia.org/wiki/European_Centre_for_Medium...

    ECMWF aims to provide accurate medium-range global weather forecasts out to 15 days and seasonal forecasts out to 12 months. [12] Its products are provided to the national weather services of its member states and co-operating states as a complement to their national short-range and climatological activities, and those national states use ECMWF's products for their own national duties, in ...

  3. Numerical weather prediction - Wikipedia

    en.wikipedia.org/wiki/Numerical_weather_prediction

    Weather reconnaissance aircraft, such as this WP-3D Orion, provide data that is then used in numerical weather forecasts.. The atmosphere is a fluid.As such, the idea of numerical weather prediction is to sample the state of the fluid at a given time and use the equations of fluid dynamics and thermodynamics to estimate the state of the fluid at some time in the future.

  4. Weather forecasting - Wikipedia

    en.wikipedia.org/wiki/Weather_forecasting

    t. e. Weather forecasting is the application of science and technology to predict the conditions of the atmosphere for a given location and time. People have attempted to predict the weather informally for millennia and formally since the 19th century.

  5. Environment of Lebanon - Wikipedia

    en.wikipedia.org/wiki/Environment_of_Lebanon

    Environment of Lebanon. One of the major environmental issues in Lebanon is water supply. The country has greater water resources than many other Middle Eastern countries; however, it is at increasing risk of shortages, particularly during the dry summers. This is due to lack of storage capacity, to increasing demand, and to climate change.

  6. HIRLAM - Wikipedia

    en.wikipedia.org/wiki/HIRLAM

    The Programme. The aim of the HIRLAM programme is to develop and maintain a numerical short-range weather forecasting system for operational use by the participating institutes. The cooperation, started in September 1985, comprises a series of 3-year projects between 1985 and 2005, and 5-year programmes HIRLAM-A (2006–2010) and HIRLAM-B (2011 ...

  7. Global Environmental Multiscale Model - Wikipedia

    en.wikipedia.org/wiki/Global_Environmental_Multi...

    The Global Environmental Multiscale Model (GEM), often known as the CMC model in North America, is an integrated forecasting and data assimilation system developed in the Recherche en Prévision Numérique (RPN), Meteorological Research Branch (MRB), and the Canadian Meteorological Centre (CMC). Along with the NWS 's Global Forecast System (GFS ...

  8. History of numerical weather prediction - Wikipedia

    en.wikipedia.org/wiki/History_of_numerical...

    The history of numerical weather prediction considers how current weather conditions as input into mathematical models of the atmosphere and oceans to predict the weather and future sea state (the process of numerical weather prediction) has changed over the years. Though first attempted manually in the 1920s, it was not until the advent of the ...

  9. Integrated Forecast System - Wikipedia

    en.wikipedia.org/wiki/Integrated_Forecast_System

    The Integrated Forecasting System (IFS) is a global numerical weather prediction system jointly developed and maintained by the European Centre for Medium-Range Weather Forecasts (ECMWF) based in Reading, England, and Météo-France based in Toulouse. [1] The version of the IFS run at ECMWF is often referred to as the "ECMWF" or the "European ...