Mike Mahoney
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mikemahoney218.com
Mike Mahoney
@mikemahoney218.com
Helped build NYS's Forest Carbon Assessment. Currently helping build public water data infrastructure. PhD in Environmental Science.

#rstats, ML, Boston and spatial data.
Opinions my own. RTs imply causation.
https://mm218.dev
github.com/mikemahoney218
put a handful of minor #AGU25 thoughts up on the blog

very happy to have seen everyone I saw -- very sorry to miss everyone I missed!!
www.mm218.dev/posts/2025-1...
Ten short thoughts about AGU25 – Mike Mahoney
Minor dispatches written about 400 feet from Bourbon Street
www.mm218.dev
December 20, 2025 at 3:37 AM
in case anyone missed it, a terrifying harlequin has appeared at the end of the #AGU25 convention center
December 18, 2025 at 11:58 PM
Reposted by Mike Mahoney
And here it is.
December 17, 2025 at 3:34 PM
Reposted by Mike Mahoney
Heading out now for #AGU25 🧪!

I should plug my talks, "Introducing the Next Generation of USGS Water Data APIs":
eppro01.ativ.me/appinfo.php?...

Plus "Building the Next Generation of USGS Water Data APIs":
eppro01.ativ.me/appinfo.php?...

Who do I know in New Orleans this week?
AGU25
eppro01.ativ.me
December 14, 2025 at 3:43 PM
Heading out now for #AGU25 🧪!

I should plug my talks, "Introducing the Next Generation of USGS Water Data APIs":
eppro01.ativ.me/appinfo.php?...

Plus "Building the Next Generation of USGS Water Data APIs":
eppro01.ativ.me/appinfo.php?...

Who do I know in New Orleans this week?
AGU25
eppro01.ativ.me
December 14, 2025 at 3:43 PM
maybe someone who follows me knows the answer to this -- my gut feeling is that network latency would make space based data centers impractical, to say nothing of any other challenges. Are satellite transmissions just way faster than I give them credit for?
December 14, 2025 at 3:37 PM
max carry-on sizes should be determined by height
December 13, 2025 at 4:28 AM
as I'm writing my #AGU25 talks I'm reminded of my favorite hobbyhorse: you should not ask for questions after giving a talk!

End by saying "thanks" so people know when to clap. The moderator will let you know if there's any time for questions after! You're just stealing your own applause.
December 10, 2025 at 10:16 PM
if I were a better statistician this would be a paper, but: one of the best parts of moving to predictive modeling is completely sidestepping arguments around significance and threshold values

"What was the MAE" and "is that good enough for applications" are much easier to reason about
December 7, 2025 at 2:26 PM
Reposted by Mike Mahoney
#30daymapchallenge · Jour 30 · Relooking
🌍 Europe · Europa · Ευρώπη · Європа
🔍 Zoomez pour découvrir les villes d'Europe dans leur langue.

🔽 L'ancienne carte, en commentaire, utilisait un texte de substitution, réalisée pour le #30daymapchallenge 2024.

#cartographie #map #europe #europa
November 30, 2025 at 3:51 AM
gotta be honest, pretty excited to go back to looking at the Bad Screen tomorrow
November 13, 2025 at 4:15 AM
it's so bananas that OGC maintains **several** decent standards for specifying SRS, including the WKT spec, and still went with "use a literal URL to our privately maintained list of XML-encoded EPSG CRS" for their API standards
November 10, 2025 at 3:52 AM
My shutdown hobbies are getting weirder

(Poll worker training in preparation for Boston's municipal election on November 4th!)
October 23, 2025 at 9:56 PM
lumen outage yet again
In honour of spooky month, share a 4 word horror story that only someone in your profession would understand.

rm -rf ~/
"The chancellor approved it"
October 12, 2025 at 12:44 PM
Reposted by Mike Mahoney
the city of los angeles burned in january in part because of a man who couldn’t stop generating images of burning cities on ChatGPT, and then after he lit the fire he asked if the fire he started was his fault
October 8, 2025 at 5:05 PM
my partner finished his journey of visiting every blue bike station today (please clap)

unfortunately the app does NOT throw confetti when you hit 100%
October 5, 2025 at 8:10 PM
hey spatial folks: if anyone has a great "parquet versus zarr" write-up, let me know. I'm never going to write a serializer but I'm really interested in the performance impacts of format for cloud downloads 👀

#geosky
October 4, 2025 at 1:32 PM
is this a typo in the Haymarket station artwork or is there a unit I haven't run into before

#boston
October 2, 2025 at 10:26 PM
Reposted by Mike Mahoney
Hey @universalhub.com does this qualify as storrowing?
Holy shit this big truck just got stuck under an overpass on Mass Ave in DC. I've never witnessed this before but thought about it a lot as a kid (lol).

You can't see it but there's a police car behind the truck under the bridge, diverting traffic to one lane.
September 20, 2025 at 7:26 PM
damn it's a pretty city
September 19, 2025 at 10:54 AM
Saying he can more positively impact the city by dropping out is the first time I've agreed with Kraft
JUST IN: Josh Kraft is dropping out of the mayoral election in Boston.

This means that Mayor Michelle Wu, the progressive incumbent, is certain to win a second term.

via WCVB: www.wcvb.com/article/josh...
September 11, 2025 at 11:39 PM
Reposted by Mike Mahoney
JUST IN: Josh Kraft is dropping out of the mayoral election in Boston.

This means that Mayor Michelle Wu, the progressive incumbent, is certain to win a second term.

via WCVB: www.wcvb.com/article/josh...
September 11, 2025 at 11:32 PM
Happy election day #Boston ! Thrilled to cast my vote to re-elect @wutrain.bsky.social this morning -- and grateful for our poll workers who got me in and out in about two minutes.

Polls are open until 7! Find your voting location here:
www.sec.state.ma.us/VoterRegistr...

#mapoli
September 9, 2025 at 12:20 PM
no one ever warns you how much JavaScript you'll need to write when you're starting in data science
September 8, 2025 at 3:29 PM