dbm.bsky.social
Atmospheric chemist | 🇨🇦🇺🇸 but mostly 🇨🇦 | Distinguished McKnight University Prof @ U Minnesota
40 posts
524 followers
577 following
Regular Contributor
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The #standupforscience2025 rallies will be held in DC and around the U.S. NEXT FRIDAY.
Please sign up to attend at standupforscience2025.org
To effectively push back the attacks on science happening now, it is so critical to show mass support for science by gathering together in the streets!
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Do you want a big overview of NSF, explaining things like the fact that 24% of all federally funded academic fundamental research comes from NSF? And that 94% of its budget goes out the door in grants/awards? Here you go. nsf-gov-resources.nsf.gov/files/Factsh...
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🤮 No respect for anyone using genAI to write reviews. If you don't have time to write an actual review, just decline the invitation! Sorry you're dealing with that nonsense
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A great collaboration with @chemdelphine.bsky.social, @chemj.bsky.social, @timothybertram.bsky.social, @profdesai.bsky.social, and others not on bluesky.
@mvermeuel.bsky.social has moved on and is now Ass’t Prof at Purdue, watch for cool research from his new group!
7/7
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5) Curiously, current atmospheric models already tend to overpredict atmospheric ozone. So if they are also overestimating ozone deposition, this means there must be other, larger (partly offsetting!) problems with our ozone models. More research is needed 🤓
6/7
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3) Ozone-driven plant phytoxicity due to ozone is also overestimated, by up to 7x!
4) Chemical reactions inside forest canopies has been proposed to be one important ozone loss mechanism. But @mvermeuel.bsky.social shows that this is trivial for the 3 forest types examined
5/7
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Some interesting results: 1) the normal “big-leaf” treatment used widely in models like GEOS-Chem overpredict ozone deposition to forests by 2x! 2) These models also do not reproduce observed variability, implying that they do not capture underlying mechanisms that will control future change.
4/7
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Standard atmospheric models simulate this deposition in a very rudimentary way, by treating 3D canopies as one big leaf. @mvermeuel.bsky.social combined a resolved-canopy model, a 3D atmospheric model, and atmospheric data to better understand the ozone deposition process over 3 forests
3/7
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Ozone is a main driver of atmospheric chemistry, also a toxic pollutant and greenhouse gas. One of the main ways it is removed from the atmosphere is through dry deposition to the Earth’s surface, especially to plant canopies (it is also phytotoxic)
2/7
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Hard agree on #2. 8+2 is just too short
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🎯
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Oops, Chengyuan is on the right! Xueying is the one hiding!
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where can I buy one? 👀
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The Permian oil-producing basin in the Southwest US stands out as the strongest ethane hotspot on the planet. Analysis of the CrIS data suggests that this single basin accounts for at least 4-7% of the global ethane source
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We argue for 1) the importance of a multispectral perspective (UV through thermal IR) for tracking atmospheric composition, and 2) the need for geostationary measurements over the Southern Hemisphere, which is
neglected by the emerging UV/Vis air quality constellation
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🧪 2/2) Andres Gonzalez combines airborne measurements with model simulations to characterize regional methane emissions for different parts of the US, finding large bottom-up errors for wetlands but pretty good agreement for agriculture:
pubs.acs.org/articlesonre...
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👀
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I thought notification was via phone call from the Swedish Academy rather than via email from the International Journal of Modeling, Simulation, and Scientific Computing (IJMSSC) ... evidently they've switched it up
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This is outstanding. Clearly you should be branding your research group as “de Grouwp” … it’s too good not to
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This climate extension work is happening at U Minnesota, led by Heidi Roop
climate.umn.edu
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😬
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“Can’t rely on USPS”… my dad just tried to send a package from Oregon to my son in Ontario and the package is literally in Australia right now
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Likewise!
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Yikes. Did everything work ok?