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) ................................................................................................................... 10 4.3. Cumulonimbus cloud ........................................................................................................................... 12 4.4. Non-convective cloud associated

) ................................................................................................................... 10 4.3. Cumulonimbus cloud ........................................................................................................................... 13 4.4. Non-convective cloud associated

December 2018: Satellite image of spiral shaped cloud 07 December 2018 High resolution data from the Moderate-resolution Imaging Spectro-radiometer (MODIS) on board NASA's Aqua satellite shows this low-pressure system centred off the North coast of Scotland on 7th December. The anti-clockwise swirl

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

and a clear start in the north-west, with more cloud elsewhere, but with western areas turning sunny by afternoon. The 3rd started cold in a few places, with sunshine in the north-west and south-west spreading to all but south-eastern areas by evening. The 4th began frosty in most areas, with early

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

and have been designed to follow the TAF code appearing in the same order; visibility and weather followed by cloud. The METAR weather codes are also used in this section to refer to specific forecast weather types (e.g. TS, +RA, FG, etc.) Sub areas On occasions there will be a need to include sub

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

, 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

rainbow effect. They are commonly associated with Cirrus clouds where ice crystals readily form. Circumzenithal arcs are actually quite common as these types of clouds occur throughout the year, however we only sometimes see them as they are usually obscured by clouds underneath. Circumzenithal arc