météorology

Physique and meteorology: understanding the climate and forecasts

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Physique et météorologie : comprendre le climat et les prévisions

IN BRIEF Climate: a set of averages of atmospheric elements over a given period. Meteorology: study of short-term atmospheric phenomena. Climatology: analysis of climatic variations over the long term. Current reference period: 30 years to define a climate. Weather forecasts: based on the study of phenomena such as clouds and precipitation. Impact of climate change … Read more

The physics of lightning: understanding this natural phenomenon

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La physique de la foudre : comprendre ce phénomène naturel

IN BRIEF Natural phenomenon of electrostatic discharge. Occurs during thunderstorms in clouds called cumulonimbus. Accumulation of electric charges causing enormous voltages. Occurs between clouds or between a cloud and the ground. Can reach temperatures of 30,000 °C. The speed of the discharge can exceed 200,000 km/h. Lightning is a common natural electric arc. Potential impacts … Read more