Category Archives: Numerical modelling

Where Do All My Balloons Go?

By: Andrew K. Mirza Turbulence! If you have ever travelled by aeroplane, then you may have experienced atmospheric turbulence during the flight: It is when the captain switches on the seat-belt sign; requests all passengers return to their seats and … Continue reading

Posted in Atmospheric dispersion, Boundary layer, Greenhouse gases, Numerical modelling, Turbulence, Wind | Leave a comment

Why should we care about sea ice floes?

By: Adam Bateson One of the most frequently used visual devices to illustrate climate change is that of a polar bear on sea ice surrounded by open ocean (Fig. 1). Polar bears are today identified as a vulnerable species, with sea ice decline the … Continue reading

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

Advance Of The Indian Monsoon Onset

By: Arathy Menon The Indian monsoon provides water for agriculture, industry and the basic water needs of more than a billion people. The monsoon onset usually takes place in south India during the beginning of June and the monsoon rains then … Continue reading

Posted in Climate, Monsoons, Numerical modelling, Rainfall, Tropical convection | Leave a comment

The Core-cloak Convection Model

By: Jian-Feng Gu Moist convection plays a fundamental role in large-scale circulations and climate, ranging from cumulus clouds smaller than 100m to organized weather systems of several thousands of kilometers. Limited by their grid spacing, numerical models are not able … Continue reading

Posted in Climate, Clouds, Convection, Numerical modelling | Leave a comment

Practical Problems when Simulating the Earth

By: David Case In principle, to simulate the earth should be a doddle. We know that it’s made of such things as molecules, crystals and atoms, and the forces between these derive from charged particles, and these do little more … Continue reading

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Covid-19: Using tools from geophysics to assess, monitor and predict a pandemic

By: Alison Fowler, Alberto Carrassi, Javier Amezcua The emergence of a new coronavirus disease, known as Covid-19, that could be transmitted between people was identified in China in December 2019. By 3rd March 2020 it had spread to every continent … Continue reading

Posted in Climate, data assimilation, Numerical modelling | Leave a comment

Finding the skill of forecasts of extreme precipitation in Southeast Asia

By: Samantha Ferrett Forecasting weather in Southeast Asia Southeast (SE) Asia is prone to high‐impact weather and is often subject to flooding and landslides as a result of heavy rainfall. Just last month Indonesia was hit by heavy rainfall that … Continue reading

Posted in Numerical modelling, Rainfall, Weather forecasting | Leave a comment

Don’t (always) blame the weather forecaster

By: Ross Bannister There are (I am sure) numerous metaphors that suggest that a small, almost immeasurable event, can have a catastrophic outcome – that adding the proverbial straw to the load of the camel will break its back. In 1972, … Continue reading

Posted in Climate, Climate modelling, data assimilation, Numerical modelling, Predictability | Leave a comment

High-resolution insights into future European winters

By: Alexander Baker Figure 1: Observed UK rainfall anomaly as a percentage of 1981-2010 monthly average for (a) December 2013, (b) January 2014, and (c) February 2014. Figure from Huntingford et al. (2014). Most – roughly 70% – of Europe’s winter … Continue reading

Posted in Climate change, Climate modelling, extratropical cyclones, Numerical modelling | Leave a comment

Turbulence Matters

By: Torsten Auerswald Most people are only consciously aware of the existence of turbulence when the pilot announces it. But apart from the discomfort of a bumpy flight, turbulence affects us in many other important aspects of daily life. The … Continue reading

Posted in Numerical modelling, Turbulence | Leave a comment