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, the increase in the resolution leads to a loss of compensating errors and thus increases the temperature bias compared to the lower resolution version. We reformulate some of the sub–grid scale physics parameterisations and model chemistry which produces an improved representation of cloud cover

Areas of expertise Parametrization development. Boundary layer modelling. Clouds and turbulence. Large-eddy simulation. Publications by Adrian Lock Current activities Adrian manages the boundary layer and surface processes team, which is part of Atmospheric Processes and Parametrizations. The team

Thunderstorms are associated with numerous hazards including heavy rainfall and lightning. In addition to these hazards, tiny ice crystals can form within the storm’s rapidly growing clouds. These high-altitude crystals can be particularly dangerous to aircraft as they can stick to aircraft

, variable cloud and clear spells will occur, with local grass frost and isolated fog patches forming. Friday will feel warm in sunshine and light winds for many, with temperatures widely ranging from 15-17°C, locally reaching 18°C, though cooler along North Sea coasts. On Friday night, frontal rain across

A fine and settled day is expected across much of England and Wales, with early patchy low cloud and isolated fog in southern and western areas soon clearing to leave widespread sunshine. Temperatures will respond accordingly, with much of the region turning warm or very warm through the afternoon

A noticeable increase in cloud cover across much of the UK compared to recent days

Saturday will bring a noticeable increase in cloud cover across much of the UK compared to recent days, though parts of the south and southwest will enjoy the best of the sunshine. Scattered showers are expected, particularly in western areas, with Northern Ireland likely to see more persistent

Paul is manager of the Clouds and Radiation team in Atmospheric Processes and Parameterisations Group. He brings a wealth of process level understanding of clouds and aerosol-cloud interactions.

Areas of expertise Process level understanding of atmospheric cloud and aerosol microphysics Observations experience and understanding of global cloud systems, including tropical, mid-latitude and Arctic. Leadership of international scientific research projects Paul's Publications Current

cloud amount Hourly 75 22. Medium cloud amount Hourly 74 23. Low cloud amount Hourly 73 24. Total cloud Hourly 71 25. Convective cloud amount Hourly 72 26. Convective cloud base (hPa) Hourly 153 27. Convective cloud top (hPa) Hourly 154 28. Cloud fraction (below 1000ft ASL) Hourly 207 29. Height lowest

Leader pack Sessions 1-3 What is temperature? What is wind? What are clouds? Measuring the weather VIRTUAL Science Camp 2021 Thank you for joining us for the first Virtual Science Camp 2021! Since 2013 we have welcomed over 1,500 young people to Met Office HQ for our Science Camps. However, due

region. From this viewpoint at 35,000 km above the Equator the extent of the fog can clearly be seen. Using data from channels detecting radiation at visible and near infra-red wavelengths we can produce an image that is close to true colour, however ice clouds and snow on the ground appear