Harri Kokkola

Another PhD defence @UEF Aerosol Physics Group: Irfan Muhammad defending his thesis on modelling aerosol effects on climate. Pontus Roldin (the Opponent) doesn’t let him off easy. And @harrikokkola.bsky.social (the Custos) sweating there in the middle.

Long-term measurements reveal cloud sensitivity to changes in atmospheric aerosol concentrations An international study led by the University of Eastern Finland and the Finnish Meteorological Institute has demonstrated that the formation and properties of lower-atmosphere clouds are highly sensit...

After a tremendous collaborative effort from multiple measurement and modeling teams, our work has just been published in Nature Geoscience! 🌍🔬 — check it out! 👇 hashtag#Science hashtag#Research hashtag#NatureGeoscience
www.uef.fi/en/article/l...
www.nature.com/articles/s41...

🌍 Unlocking climate insights with TerraDT
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In January, CERTAINTY researchers delivered inspiring lectures to ERCA students, covering topics like aerosols and clouds, atmospheric dynamics, weather systems, remote sensing, and statistical analysis.
Welcome to the new generation of scientists!

Currently, our poster session is in full swing at the CERTAINTY Annual Meeting in Grenoble!
It’s an exciting moment to connect and share insights with our amazing team. The energy and collaboration are truly inspiring!

Kicking off a productive CERTAINTY meeting!
We are planning for Year 2 and beyond, aligning on current progress, and strengthening collaborations with our partners and International advisory committee.
Exciting coordinated modeling case studies ahead.
Welcome to all new team members & ECRs!

Welcome to TerraDT, the Digital Twin of the Earth system for cryosphere, land surface and related interactions!

After our kick off, we're ready to embark on this journey, supporting evidence-based policy on climate adaptation.

Sign up to our newsletter on terradt.eu: tinyurl.com/bdhfcmxj

- Franz Immler (European Commission) - Thorsten Fehr (European Space Agency - ESA), EarthCare - Michael Schulz (Norwegian Meteorological Institute | Meteorologisk institutt), AEROCOM - Marta Luffarelli (Rayference), SATACI - Ulas Im (Aarhus University) / Athanasios Nenes (FORTH - EPFL), CleanCloud ACI - Oleg Dubovik (CNRS - Université de Lille) / Anton Lopatin (University of Lille), AIRSENSE - Jennie Thomas (CNRS - IGE), CERTAINTY-ACI - Harri Kokkola (Finnish Meteorological Institute - Ilmatieteen laitos), CERTAINTY-ACI

💭 Fruitful Aerosol-Cloud Cluster Session today! We assessed progress, explored new synergies, and discussed future collaborations.

🙏 A big thank you to all our speakers and participants for their valuable contributions!

🔹 Stay tuned for upcoming joint activities.

Model analysis of biases in the satellite-diagnosed aerosol effect on the cloud liquid water path Abstract. The response in cloud water content to changes in cloud condensation nuclei remains one of the major uncertainties in determining how aerosols can perturb cloud properties. In this study, we...

[New publication]
📄 Model analysis of biases in the satellite-diagnosed aerosol effect on the cloud liquid water path

✒️ @harrikokkola.bsky.social Juha Tonttila @silviamcalderon.bsky.social Sami Romakkaniemi @anttilip.net et al.

🔗 acp.copernicus.org/articles/25/...

📄 New publication

🔹Terrestrial and Marine sources of ice nucleating particles in the Eurasian Arctic

✒️ by Guangyu Li, André Welti, Arianna Rocchi, Germán Pérez Fogwill, M. Dall'Osto & Zamin A. Kanji

🔗 certainty-aci.eu/publications/

[New publication ]
📄 Weak liquid water path response in ship tracks

✒️ Anna Tippett, Edward Gryspeerdt, Peter Manshausen, Philip Stier and Tristan W. P. Smith

🔗 acp.copernicus.org/articles/24/...

New digital twin helps plan shipping routes and green areas - CSC CSC has been selected to lead a project developing a new digital twin. TerraDT will model the impacts of, for example, glaciers and vegetation on the Earth's climate. Read more.

Excited to start working on this new project

csc.fi/en/media-rel...

uef.varbi.com/en/what:job/... uef.varbi.com/en/what:job/...
If you are interested in studying how interactions between atmospheric aerosols and clouds affect weather and climate, UEF offers positions for both doctoral student and post doc level researchers @certainty-aci.bsky.social

[CERTAINTY]
New @HorizonEU Project focusing on improved understanding of Clouds and Aerosols in #Weather and #Climate has started on 1 January 2024!

🔗 Visit our website: certainty-aci.eu

Ilmaston lämpeneminen | Hillitsimme lämpenemistä jo vahingossa – ”pirullinen” keino nousi t... Rikkipäästöjen vähentäminen esti useita kuolemia – mutta samalla nopeutti lämpenemistä. Tutkijat pohtivat taas, miten voisimme viilentää ilmastoa ja jopa hillitä mannerjäätiköiden sulam...

Juttua ilmastonmuokkauksesta hs:ssa: www.hs.fi/tiede/art-20...

New project focuses on improved understanding of clouds and aerosols CERTAINTY: Cloud-aerosol interactions & their impacts in the earth system project, funded by the Horizon Europe program, aims to advance our comprehension of clouds and aerosols in the climate. This

In the beginning of 2024 we will start a new exciting project that will study the complex interactions between clouds and aerosols en.ilmatieteenlaitos.fi/news/2EaT83p...

@certainty-aci.bsky.social

Ilmatieteen laitos

Osallistuttiin @harrikokkola.bsky.social:n kanssa hienoon tutkimukseen, jossa onnistuttiin tarkentamaan arvioita savuhiukkasten vaikutuksesta ilmastoon.

Ilmakehämallit eivät ole täydellisiä, mutta meillä on keinoja parantaa niiden tuottamia arvioita
🧪 #tiedetaivas

A new study shows that constraining the properties of absorbing aerosol results in a threefold reduction in modeled direct radiative effects of biomass burning aerosol
www.science.org/doi/10.1126/...

We were happy to be involved in the study with our model simulations
@mielonen.bsky.social