Category Archives: Climate modelling

Melt ponds over Arctic sea ice

By Daniela Flocco Melt ponds develop over Arctic sea ice during the melting season from the accumulation of melt water from ice and snow. These have become increasingly important over the last few decades because they have been more prevalent … Continue reading

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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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Measuring radiation with aircraft

By Peter Hill In my career as an atmospheric scientist I’ve relied on observational data from a wide range of sources including satellite imagery, surface measurements, ground-based and satellite based radar, and aircraft measurements. Last July I had my first … Continue reading

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Geoengineering – how could we detect its cooling effect?

By Eunice Lo Sulphate aerosol injection (SAI) is one of the geoengineering proposals that aim to reduce future surface temperature rise in case ambitious carbon dioxide mitigation targets cannot be met.  Climate model simulations suggest that by injecting 5 Tg of sulphur dioxide gas … 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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Producing quantitative estimates of radiative forcing

By Will Davies Last year the Paris climate conference agreed to an action plan to limit global warming to below 2 degC – preferably 1.5 degC. Various initiatives are measuring performance against this target – such as the global warming … Continue reading

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Earth System Modelling in the UK

By Till Kuhlbrodt Making climate projections for the next couple of decades is a pressing and complex task for the global climate modelling community. One of the most important purposes of modelling the future climate is to provide society and Government … Continue reading

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An artefactually introduced monthly cycle in the ensemble fields constrained by HadISST2

By Xiangbo Feng ECMWF has recently developed two major ensemble products for 20th century climate, i.e. ERA-20CM and CERA-20C, within ERA-CLIM and ERA-CLIM2 projects. ERA-20CM is in ECMWF’s public datasets now, and CERA-20C has been scheduled to disseminate in the near … Continue reading

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The interaction between aerosols and clouds

By Nicolas Bellouin As part of the Copernicus Atmosphere Monitoring Service (CAMS), I lead an activity that will provide in August new estimates of radiative forcing of climate due to changes in atmospheric composition. One of the radiative forcing mechanisms … Continue reading

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