Author Archives: danaallen

Regional vs Global Models From The Perspective of a Polar Climate Scientist

By: Charlotte Lang There is a debate in the world of polar climate and ice sheet surface modelling about global (GCM) versus regional (RCM) models and each side is trying to convince the other that they do better: global modellers … Continue reading

Posted in Climate, Climate modelling, Cryosphere, Polar | Leave a comment

Modelling Dust Extremes Over East Asia

 By: Dhirendra Kumar Mineral dust plays an important role in the earth system due to its interaction with climate, ecosystems, biogeochemical cycles, and human society in direct and indirect ways [1,2,3]. Their interactions with the weather and climate occur at … Continue reading

Posted in Aerosols, Air quality, China, Climate, Climate modelling, Weather | Leave a comment

Using measurements of cloud ice to evaluate frozen particle scattering models

By: Karina McCusker How do we measure cloud ice, and why do we need to? Ice particles in clouds have complex geometries, making them more difficult to understand than droplets. As a result, ice clouds are a source of uncertainty … Continue reading

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Projected longer dry spells under climate change occur during dry seasons not wet seasons

By Caroline Wainwright  The latest Intergovernmental Panel on Climate Change (IPCC) report states that the global water cycle will intensify with continued global warming. This means fewer rainy days, but with more intense rain over many land regions, and more … Continue reading

Posted in Climate, Climate change, Monsoons, Rainfall, Water cycle | Leave a comment

From Falling Paper Strips, Tossed Coins To Settling Snowflakes

By Majid Hassan Khan Did you notice money raining down in part three of the Spanish TV series “Money Heist” (Spanish: La casa de Papel, “The House of Paper”) on Netflix? A blimp flew over Madrid and showered money. These … Continue reading

Posted in Climate, Fluid-dynamics | Leave a comment

Data assimilation under dramatic growth of observational data and rapid advances in computer performance

By: Guannan Hu The importance of data assimilation Data assimilation (DA) is a technique used to produce initial conditions for numerical weather prediction (NWP). In NWP, computer models describing the evolution of the atmosphere are used to predict future weather … Continue reading

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The Other Climate Impact Of Aviation

By: Ella Gilbert In-flight entertainment Picture yourself in the window seat of an aeroplane, cruising along at 30,000 feet, occasionally admiring the clouds below and watching that cheesy blockbuster you were too shy to go and see in the cinema. … Continue reading

Posted in aviation, Climate, Microphysics | Leave a comment

Soil Moisture Monitoring with Satellite Radar

By: Keith Morrison-Department of Meteorology & Will Maslanka-Department of Geography & Environmental Science Everyone knows about the impacts from intense and/or prolonged rainfall – flooding, like that experienced in the Thames Basin during the Summer of 2007, and the Winter of … Continue reading

Posted in Climate, earth observation, radar, Remote sensing, soil moisture | Leave a comment

Rescuing early satellite data to improve long-term estimates of past weather.

By: Jade Westfoot  This post is contributed by Jade Westfoot, a year-12 school student who did work experience in the department recently. During her week with us, Jade worked with Drs. Jon Mittaz and Tom Hall on rescuing historic satellite … Continue reading

Posted in Climate, Clouds | Leave a comment

The Future of Arctic Sea Ice

By: Rebecca Frew It is well documented in scientific studies and the news (recent example here) that the summer extent of Arctic sea ice has been declining rapidly in response to global warming. As the summer sea ice shrinks and … Continue reading

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