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laser pulses transmitted at one or more given wavelengths (UV, visible or IR). Time-height plots of backscatter intensity produced from measurements can then be used to interpret the vertical profile of the atmosphere at each point where an instrument is located. However low cloud and fog will prevent

with this is the clouds are white and snow on the ground is white, so it can be hard to tell them apart. The second image aims to solve this problem. It uses five channels in the near-infra-red part of the spectrum to construct an image in which the snow can be differentiated from the cloud. Snow lying

Herzog, this project aims to identify and quantify the dynamical processes associated with individual clouds that need to be considered in convective parametrizations. 3. Mass flux and beyond Led by Bob Plant, this project will provide a critical examination of parametrization methods that are based

-west stayed mainly dry. Most places had fewer showers on the 2nd, but showers became more frequent in the north-east from early afternoon. Cloud, mist and fog with light rain spread across the south and parts of the Midlands on the 3rd, with sunshine and showers in the north, the showers turning

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

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

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

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 Return to top C C Degrees Celsius CAA Civil Aviation

, 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

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