{"id":18,"date":"2024-04-04T06:07:13","date_gmt":"2024-04-04T03:07:13","guid":{"rendered":"https:\/\/sisu.ut.ee\/velle-toll\/avaleht\/"},"modified":"2024-11-24T18:59:03","modified_gmt":"2024-11-24T16:59:03","slug":"avaleht","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/velle-toll\/","title":{"rendered":"Aerosol-Cloud-Climate interactions"},"content":{"rendered":"

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We discovered anthropogenic glaciation of supercooled liquid-water clouds and anthropogenic snowfall events<\/strong> downwind industrial aerosol hot spots (Toll et al., 2024 Science<\/a>).<\/p>\n\n\n\n

In the image on the left, the plume of snow is seen downwind of the cement factory when glaciated clouds have cleared away.<\/p>\n<\/div><\/div>\n\n\n\n

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We discovered plume-shaped industrial aerosol perturbations<\/strong> on liquid-water clouds that we use as opportunistic experiments to better constrain anthropogenic climate forcing (Toll et al., 2019 Nature<\/em><\/a>).<\/p>\n\n\n\n

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.<\/p>\n\n\n\n

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We discovered large-scale anthropogenic aerosol perturbations<\/strong> on liquid-water clouds (Trofimov et al., 2020 JGR<\/em> Atmospheres<\/a>).<\/p>\n\n\n\n

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.<\/p>\n<\/div><\/div>\n\n\n\n

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EMS Young Scientist Award presented to Velle<\/h3>\n\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t
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Velle was awarded ERC consolidator grant<\/h3>\n\n
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https:\/\/ut.ee\/en\/news\/erc-grant-helps-velle-toll-quantify-impact-anthropogenic-air-pollution-particles-climate University of Tartu Associate Professor in Climate Physics Velle Toll received the Consolidator Grant from the European Research Council (ERC) to quantify the extent to which air pollution particles cool the Earth\u2019s climate. The results of Toll\u2019s work would \u2026<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Jorma was awarded a prize in the science contest for university students<\/h3>\n\n
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In the Estonian national science contest for university students, Jorma was awarded third prize in the category of natural sciences at the PhD level https:\/\/etag.ee\/en\/activities\/contests\/the-national-student-research-competition<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Velle has been elected as a Member of The Estonian Young Academy of Sciences<\/h3>\n\n
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https:\/\/ut.ee\/en\/news\/kertu-liis-krigul-and-velle-toll-became-members-estonian-young-academy-sciences<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Climate Compass 2025 conference in Tartu<\/h3>\n\n
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We organised the Climate Compass 2025 conference in Tartu https:\/\/kliima.ut.ee\/en\/climate-conference-climate-compass-2025\/<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Annual research award of UoT 2024 presented to Clouds & Climate Lab<\/h3>\n\n
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Associate Professor in Climate Physics Velle Toll revealed that in industrial hot spots, anthropogenic air pollution causes snowfall and reduces cloud cover. https:\/\/ut.ee\/en\/news\/university-tartu-research-award-went-centre-climate-research-discovery-about-anthropogenic-air<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Velle\u2019s presentation on climate change in the Parliament of Estonia<\/h3>\n\n
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Velle presented the contemporary scientific understanding of anthropogenic climate change in the Parliament of Estonia https:\/\/www.youtube.com\/watch?v=wGHUI7APtqM<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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ERAD 2024 best oral presentation award presented to Jorma<\/h3>\n\n
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Best Oral Presentation Award to Jorma Rahu for the presentation \u201cGround-based Precipitation Radar Signatures of Anthropogenic Snowfall Events Downwind of Industrial Air Pollution Hot Spots\u201d 12th European Conference on RADar in Meteorology and Hydrology (ERAD 2024), September 9-13 https:\/\/www.erad2024.it\/ https:\/\/poster.easyabstract.it\/ERAD2024\/abstract\/15091\/161\/882 \u2026<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Industrial snow: Factories trigger local snowfall by freezing clouds<\/h3>\n\n
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Our research was covered by phys.org https:\/\/phys.org\/news\/2024-11-industrial-factories-trigger-local-snowfall.html<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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Industrial plumes seed snow<\/h3>\n\n
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Our research was covered by the Chemical and Engineering News https:\/\/cen.acs.org\/environment\/atmospheric-chemistry\/Industrial-plumes-seed-snow\/102\/i36?sc=230901_cenrssfeed_eng_latestnewsrss_cen<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t

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When Pollution Brings Snow<\/h3>\n\n
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Our research was covered by NAUTILUS https:\/\/nautil.us\/when-pollution-brings-snow-1131658\/?utm_source=tw-naut&utm_medium=organic-social<\/p>\n <\/div>\n \n Read more<\/a>\n\n <\/div>\n <\/div>\n <\/div>\n<\/article>\n\t\t\t\n\t\t\t\t\t\t<\/div>\n","protected":false},"excerpt":{"rendered":"

We discovered anthropogenic glaciation of supercooled liquid-water clouds and anthropogenic snowfall events downwind industrial aerosol hot spots (Toll et al., 2024 Science). In the image on the left, the plume of snow is seen downwind of the cement factory when …<\/p>\n","protected":false},"author":227,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-18","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/pages\/18","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/users\/227"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/comments?post=18"}],"version-history":[{"count":30,"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/pages\/18\/revisions"}],"predecessor-version":[{"id":395,"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/pages\/18\/revisions\/395"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/velle-toll\/wp-json\/wp\/v2\/media?parent=18"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}