Aerosol-Cloud-Climate interactions
We discovered plume-shaped industrial aerosol perturbations on liquid-water clouds that we use as opportunistic experiments to better constrain anthropogenic climate forcing (Toll et al., 2019 Nature).
In the image on the right, bright greyish aerosol-polluted cloud lines are visible in the near-infrared composite satellite image. Polluted cloud tracks originate from the industrial and urban aerosol sources marked with bright white.
We discovered large-scale anthropogenic aerosol perturbations on liquid-water clouds (Trofimov et al., 2020 JGR Atmospheres).
In the image on the left, bright greyish large-scale aerosol-polluted cloud area is visible in the western part of the near-infrared composite satellite image.
Velle’s News & Views feature in Nature Geoscience “Polluted skies are cloudier”
Analyses of the 2014 Iceland–Holuhraun volcanic eruption revealed the emitted aerosols induced a 10% increase in cloud coverage above the region, suggesting anthropogenic aerosols might strongly cool the Earth’s climate by increasing the cloud coverage. https://www.nature.com/articles/s41561-022-00997-0
University of Tartu sets out to increase climate awareness
With the new academic year, a joint project of Estonian universities was launched, aiming to increase the climate awareness of Estonian society with systematic climate education at all levels of education. In the project, education strategies are developed, learning materials …
TV clip about our research: aerosol pollution cools the Earth’s climate
Jorma, Heido and Velle introduced our research on national television. https://arhiiv.err.ee/video/vaata/tahelepanu-tegemist-on-teadusega-ohusaaste-jahutab-kliimat
Heido’s PhD defence “Polluted clouds at air pollution hot spots help to better understand anthropogenic impacts on Earth’s climate”
https://reaalteadused.ut.ee/en/node/141168 On 25 August at 14:00 Heido Trofimov will defend his doctoral thesis “Polluted clouds at air pollution hot spots help to better understand anthropogenic impacts on Earth’s climate” for obtaining the degree of Doctor of Philosophy (in Physics). Supervisors:Associate Professor Velle …
Velle’s UT CS Data Science Seminar presentation: HPC for weather, climate and Earth system prediction
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What is coronavirus doing to our planet?
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Global warming can be assessed by studying the clouds
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Global warming and clouds
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EMS award lecture by Velle
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