Author Archives: danaallen

Do we have an appropriate description of energetic particles in the Earth’s outer radiation belt?

By: Oliver Allanson Figure 1: A particle undergoes Brownian motion. The short answer: probably not, at least not all of the time. In our state-of-the-art and physics-based numerical experiments, we analyse the motion of 100 million individual high-energy electrons that evolve … Continue reading

Posted in Space, space weather | Leave a comment

Climate change is spinning up the global energy and water cycles.

By: Richard Allan I was unfortunate enough to mildly injure my middle finger by typing too frenetically on a train journey from Toulouse returning from an Intergovernmental Panel on Climate Change meeting. I soon forgot about this by luckily stepping … Continue reading

Posted in Climate, earth observation, Water cycle | Leave a comment

Effect of the North Atlantic Ocean on the Northeast Asian climate: variability and predictability

By: Paul-Arthur Monerie North East Asia has warmed substantially after the mid-1990s leading to an increase in temperature extremes and to societal impacts (Dong et al., 2016). Predicting the variability of the North East Asian climate is therefore of primordial interest … Continue reading

Posted in Climate, Climate modelling, Predictability | Leave a comment

It’s Hotter Than A Ginger Mill In Hades

By: Giles Harrison and Stephen Burt Or so they sometimes say in the south of the United States. But without a reference ginger mill or ready access to Hades, how do we know how hot it really is, and how … Continue reading

Posted in Climate, Measurements and instrumentation | Leave a comment

Why was there decadal increase in summer heat waves over China across the mid-1990s?

By: Buwen Dong Heat waves (HWs), commonly defined as prolonged periods of excessive hot weather, are a distinctive type of high-temperature extreme (Perkins 2015). These high-temperature extremes can lead to severe damage to human society and ecosystems. In our studies, … Continue reading

Posted in Aerosols, China, Climate, Climate change, Climate modelling | Leave a comment

Making the best use of HPC

By: Grenville Lister High performance computing (HPC) is changing – there will be a new UK national service in early 2020 (and a period of time with no national service while the new platform is installed) – and the medium … Continue reading

Posted in High performance computing, Numerical modelling | Leave a comment

Improving model representation of cloud ice using cloud radar and aircraft observations

By: Peggy Achtert Understanding the evolution of the ice phase in clouds is of great importance for understanding the development of thunderstorms and the formation of heavy rain. However, cloud ice poses an enormous challenge for both measurements and modelling. While … Continue reading

Posted in Clouds, Microphysics, radar | Leave a comment

Challenges in the closure of the surface energy budget at the continental scale

By: Bo Dong Since satellite observations began in the late 1970s, our knowledge of energy flows in and out of the Earth’s climate system has been greatly advanced. Taking advantage of state-of-the-art Earth Observation (EO) programmes such as the Clouds … Continue reading

Posted in Boundary layer, Climate, earth observation, Energy budget | Leave a comment

30 °C days in Reading

By: Roger Brugge The temperature in the Reading University Atmospheric Observatory peaked at 32.3°C on Saturday 29 June 2019. Press stories were full of pictures of people sunning themselves across parts of the United Kingdom in glorious sunshine – yet … Continue reading

Posted in Climate, Climate change, University of Reading, Weather | Leave a comment

Science outreach in coastal Arctic communities

By: Lucia Hosekova Figure 1: NASA image by Robert Simmon based on Goddard Institute for Space Studies (GISS) surface temperature analysis data including ship and buoy data from the Hadley Centre. Caption by Adam Voiland. Few people are more aware … Continue reading

Posted in Arctic, Climate, Climate change, Cryosphere, Outreach | Leave a comment