Category Archives: Numerical modelling

Why has there been a rapid increase in heat-related extremes in Western Europe since the mid-1990s?

By Buwen Dong In the last few decades, Europe has warmed not only faster than the global average, but also faster than expected from anthropogenic greenhouse gas increases (van Oldenborgh et al., 2009). With the warming, Europe experienced record-breaking heat … Continue reading

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The physics behind a physics scheme

By Alan Grant When I joined the Met Office (or, as it was then, The Meteorological Office), I was posted to the boundary layer group. I spent a number of years investigating the atmospheric boundary layer, using data from aircraft … Continue reading

Posted in Boundary layer, Environmental physics, Numerical modelling, Oceans, Waves | Leave a comment

Changing wet and dry seasons

By Richard Allan The fickle nature of weather patterns is ultimately responsible for the where and when of tropical rainfall extremes which wreak damage on agriculture, infrastructure and people. Tropical cyclones, such as Enawo which battered Madagascar in March, can … Continue reading

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Water vapour transport by tropical cyclones over East Asia

By Liang Guo When talking about tropical cyclones (TCs), people tend to think about gusty winds and heavy rain. These weather phenomena impress us due to the immense impacts on our surroundings. However, these weather phenomena are short-lived. Most TCs … Continue reading

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Nice weather, atmospheric blocking and forecasts

By Oscar Martinez-Alvarado With the beginning of spring (either the ‘meteorological’ spring on 1 March or the ‘astronomical’ spring on 20 March, as the Met Office explains here), the UK and indeed the whole Northern Hemisphere start experiencing warmer weather. The … Continue reading

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Observation uncertainty in data assimilation

By Sarah Dance Approximately 4 million properties in the UK are at risk from surface-water flooding which occurs when heavy rainfall overwhelms the drainage capacity of the local area. Several national weather centres have been developing new numerical forecasting systems … Continue reading

Posted in data assimilation, earth observation, Numerical modelling, Remote sensing, Weather, Weather forecasting | Leave a comment

An update on the North Atlantic cold blob (January 2017)

by Pablo Ortega One of the most remarkable climate events in the last two years has been an exceptional cooling in the eastern sub-polar North Atlantic (ESPNA, Figure 1), commonly referred to as “the cold blob”. Occurring while the planet … Continue reading

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HEPEX: a community of research and practice to advance hydrologic ensemble prediction

By Hannah Cloke Although formal funded societies and projects can be very important in advancing research and improving how science is used, the unfunded voluntary community initiative of HEPEX has been one of the most important networks that I have … Continue reading

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Flying through the Indian monsoon

By Andy Turner Forecasting the monsoon in India continues to be a challenge for scientists, both for the season ahead and long into the future, the monsoon being vital for 80% of the country’s annual rainfall and securing the food … Continue reading

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From kilobytes to petabytes for global change research: take the skills survey!

By Vicky Lucas Institute for Environmental Analytics If you deal with megabytes of environmental sample data, or gigabytes of sensor data, or terabytes of model data or petabytes of remote sensing data, then I’d like you to take a survey.  … Continue reading

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