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Areas of expertise Atmospheric radiative transfer Parametrization development Cloud-radiation interactions Surface radiation modelling Current activities James is a senior scientist working on radiation parametrization for the Unified Model. This involves the development of fast and accurate ways

Areas of expertise Clouds and atmospheric radiation Land-surface processes Dust and other aerosols Technical aspects of evaluating model changes Publications by Melissa Brooks Current activities Melissa works to develop the Global Atmosphere configuration of the the Unified Model used in the Met

Friday will begin dry and fine for many areas, with long spells of sunshine. However, the sunshine will become increasingly hazy as the day progresses. Eastern and southeastern England may see more cloud, with some showers likely during the morning, but these will fade into the afternoon, allowing

Areas of expertise Climate model development and evaluation Representation of ASM in general circulation models Influence of vertical and horizontal resolution in models Sensitivity of modelled climate processes and phenomena to physical parametrizations Stratocumulus and cumulus cloud microphysics

AS Altostratus ASR Altimeter setting region ATD Arrival Time Difference AUG August AUTO Automated METAR (produced with CAA approval outside normal operational hours) Return to top B BASE Cloud base BCFG Fog patches BECMG Becoming BKN Broken (5 to 7 oktas) BL Blowing BLW Below BR Mist BTN Between

If you are interested in clouds or thunderstorms, UK climate or weather extremes, this series of factsheets clearly describes and illustrates the processes involved.

These factsheets clearly describe and illustrate the processes involved in global weather and climate, providing the most up-to-date answers and information. 1. Clouds The current classification of clouds is based upon those originated by Luke Howard (1772-1864), a London pharmacist and amateur

History Version Issue Date Change Description Owner V1 April 2019 New document D Hardy V2 July 2021 Replacement of AIRMET with GAMETs D Hardy V3 May 2022 Removal of EURO Forecast precip rate, Forecast precip type, Forecast vis & Forecast total cloud weather may layers D Hardy © Crown copyright 2021

, particularly over coastal areas and hills where it brings low clouds, drizzle and local hill fog. Judging from the number of isobars the gradient wind does not seem to be an issue but the complexity of the frontal system over the Atlantic indicates that conditions will deteriorate quickly

. Breezy conditions will persist, and temperatures will hover near or slightly below seasonal averages. Monday night will see a shift to drier conditions for many, though showers in the north will drift southward, concentrating along North Sea coastal counties. Cloud cover will increase in the far

to the formation of cumulonimbus clouds, towering, dense clouds capable of producing heavy rain, hail, and lightning. Lightning is a massive electrical discharge caused by the separation of positive and negative charges within a storm cloud. As the storm develops, ice particles and hailstones collide