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We have long realised that the climate system is driven by more than the purely physical processes (such as wind, clouds, land surface, oceans and ice) that have conventionally been modelled. Specifically the concentrations of  major greenhouse gases and aerosols are not only affected by man-made

; developing statistical and science solutions using cloud-based operational computing; and working on novel applications of probabilistic forecasting and future technologies. For the preceding 8 years Jessica was a member of the mesoscale model development and diagnostics team.  During this time Jessica

and wind. Key challenges in this area are cost effective provision of climate quality records that need to be very highly uniform (see GCOS principles). provision of key measurements including visibility, weather and cloud to continue the manual records where these are no longer made. Continuous

. There was a moderate to fresh north or north-easterly airflow across the whole country. It was a cold day for early June, particularly down the east coast and really quite miserable here given all the cloud and rain as well.

improvements delivered such as enhanced physics to improve forecasting of cloud and precipitation and an increase in the number of ensemble members. Another key improvement is the ‘Decoupler’ which will have a significant impact on managing data volumes and reducing complexity. This introduction

. This pattern typically brings alternating spells of wet and dry weather, as frontal systems move in from the Atlantic. While much of England, Wales, and Scotland will remain dry on Friday, Northern Ireland and the far west of Scotland will begin to see increased cloud and rain. Temperatures

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closed out with temperatures well above the seasonal average, with station records for temperatures and sunshine broken. “The reason for the high temperatures over the last week has not been because we’ve been importing warm air from the south, but because cloud-free skies have brought strong solar

The high pressure which is currently dominating the UK forecast has brought largely overcast conditions, low cloud and fog for many parts of the UK, apart from northwest Scotland where a front has brought rain.   Neil Armstrong is a Met Office Chief Forecaster. He said: “From Sunday we will start

In order to simulate the upwelling radiance measured by a satellite instrument (e.g. for a near nadir viewing sounder like AMSU, the Advanced Microwave Sounding Unit), the electromagnetic radiation emitted or absorbed by gases along the viewing path, and from the surface and/or cloud, must