Mikael Ehn
@mikaelehn.bsky.social
420 followers 150 following 11 posts
Professor in Atmospheric Physical Chemistry, University of Helsinki. Not an active poster, but hoping this will be the new place to discover what other scientists are doing.
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Reposted by Mikael Ehn
mikaelehn.bsky.social
Sad I didn't manage to go to there myself this time, but thanks to Mace Head team for hosting these campaigns!
maceheadccaps.bsky.social
In the middle of hosting two amazing field campaigns! **COAST-VOC** (www.helsinki.fi/en/researchg...) and **CARES**: (nerccares.wordpress.com)
Science in action at the land-sea-atmosphere interface! 🌿 @ovadnevaite.bsky.social
#COASTVOC #CARES #ClimateScience #AtmosChem
Reposted by Mikael Ehn
atmostaj.bsky.social
There is some "amazing stuff" in here on Climeworks and carbon capture / carbon offsets model more generally.
brief🧵 after the caveat that I have no idea if what is reported is true (but it mostly doesn't matter whether/if the numbers are off by >10x)
Climeworks’ capture fails to cover its own emissions
The carbon capture company Climeworks only captures a fraction of the CO2 it promises its machines can capture. The company is failing to carbon offset the emissions resulting from its operations – wh...
heimildin.is
mikaelehn.bsky.social
EGU coming up next week! See below for details on our session on atmospheric organics. Hope to see many of you there!
coletteheald.bsky.social
I'm looking forward to EGU next week and seeing people - who will be there? If interested in Atmospheric Organics check out our oral session on Thursday and posters Friday morning (AS3.2). meetingorganizer.copernicus.org/EGU25/sessio...
You can also find Yumin and Flossie presenting on their work:
Session AS3.2
meetingorganizer.copernicus.org
mikaelehn.bsky.social
Oma kokemus: ChatGPT sanoi osaavansa kääntää MatLab-scriptin Igor-koodiksi. Generoi testipätkästä ihan kivannäköisen koodin. Tarkemmin tarkasteltuna siellä oli kuitenkin paljon virheitä. Jopa for-loopin syntaxi pielessä. R ja Python varmaan AI:lle helpompia, mutta kannattaa aina tarkistaa tulos.
Reposted by Mikael Ehn
egu.eu
Hello Bluesky! EGU is pleased to be able to activate our account here, and share all the exciting news about the upcoming General Assembly: #EGU25, our #OpenAccess publications and more! Several of our Divisions will be making the move over from Twitter/X too, so keep an eye out for your favourites!
Blue background with yellow EGU logo and text that reads "European Geosciences Union".
Reposted by Mikael Ehn
coletteheald.bsky.social
Just over a week until EGU abstract deadline (Jan 15)! Come join us to learn about atmospheric organics! Featuring invited speakers @riikkarinnan.bsky.social and Matthew Coggon.
coletteheald.bsky.social
Starting to think about conference plans for 2025? Interested in atmospheric organics? Consider submitting an abstract to our session at EGU! @mikaelehn.bsky.social
meetingorganizer.copernicus.org/EGU25/sessio...
Session AS3.2
meetingorganizer.copernicus.org
mikaelehn.bsky.social
Maybe they want to convey that there's still plenty of room for things to get much worse...?
mikaelehn.bsky.social
EGU 2025 coming up next spring, check out our session on atmospheric organics!
coletteheald.bsky.social
Starting to think about conference plans for 2025? Interested in atmospheric organics? Consider submitting an abstract to our session at EGU! @mikaelehn.bsky.social
meetingorganizer.copernicus.org/EGU25/sessio...
Session AS3.2
meetingorganizer.copernicus.org
mikaelehn.bsky.social
My postdoc Jian Zhao did a great job in figuring out how to improve the performance of the vaporization inlet for aerosols (VIA). One of these days we need to do a direct comparison with the EESI-TOF to compare spectra and sensitivities for online detection of SOA.
Characterization of the Vaporization Inlet for Aerosols (VIA) for online measurements of particulate highly oxygenated organic molecules (HOMs)
Abstract. Particulate matter has major climate and health impacts, and it is therefore of utmost importance to be able to measure the composition of these particles to gain insights into their sources...
amt.copernicus.org
mikaelehn.bsky.social
Can we, in real-time, deduce the ozone formation regime by measuring highly oxygenated organics (HOM)? In theory, yes. In a simple lab system, yes. In ambient air, we are still looking into it. In any case, since HOM were discovered, we have thought about these links, so was nice to now test it.
On the potential use of highly oxygenated organic molecules (HOMs) as indicators for ozone formation sensitivity
Abstract. Ozone (O3), an important and ubiquitous trace gas, protects lives from harmful solar ultraviolet (UV) radiation in the stratosphere but is toxic to living organisms in the troposphere. Addit...
acp.copernicus.org
mikaelehn.bsky.social
Finally I can identify with your posts! 🙁
mikaelehn.bsky.social
I cannot identify with a single thing you said in this post! 🙂
mikaelehn.bsky.social
I hadn't checked X for quite a while. Following your post I now did, and finally made the choice to completely deactivate my account there.
Reposted by Mikael Ehn
coletteheald.bsky.social
Now that AGU has wrapped up, time to start thinking about EGU in April! Abstracts are due Jan 10. Consider submitting to our session on organics:
meetingorganizer.copernicus.org/EGU24/sessio...
Reposted by Mikael Ehn
coletteheald.bsky.social
If you are interested in atmospheric organics and conferences in Vienna, please consider submitting an abstract to our session at EGU24!
meetingorganizer.copernicus.org/EGU24/sessio...