someone should create a swimming ring from this!
30.09.2025 11:12
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someone should create a swimming ring from this!
Figure 1 shows this nicely visually. I also only learned about this recently
Not to say it would alter any conclusions, but it's good to keep in mind that this methodology of computing ฯ on a calibration set and then defining extremes on a test set based on whether they exceed n * ฯ can lead to overestimating the extremeness of the event. doi.org/10.1002/2015...
On my way to @ellisunitjena.bsky.social for the "AI for Earth and Climate Sciences" summer school ๐ฒ๐๏ธ๐
Greetings from @jonathanwider.bsky.social at the Machine Learning Summer School, which is taking place at the @Universidad Catรณlica San Pablo in Peru at an altitude of 2,300 meters. The summer school runs from 2 to 13 August and includes lectures by numerous renowned ML/AI researchers.
I checked a few ones and could see the prompt in the arxiv HTML version
Heute gelernt: Die physikalischen Einheiten-Vorsรคtze kommen zum Teil aus dem Dรคnischen. Femten als dรคnisches Wort fรผr 15 wurde zur Vorsilbe "Femto", wobei z.B. ein Femtometer 10 hoch minus 15 Meter sind. Analog bei atten, dรคnisches Wort fรผr 18, ein Attometer sind 10 hoch minus 18 Meter.
Eine Straรe mit Hรคusern aus der Grรผnderzeit. Erker und Tรผrmchen.
Gestern war dieses Foto von Andrรฉ Kempner in der LVZ.
In dem ersten Haus mit Erker rechts wohnten meine Groรeltern und eine zeitlang auch ich.
Wenn ich als Kind zu Besuch kam, stand meine Groรmutter am Erkerfenster und winkte. Das war schรถn.
Alle Hรคuser waren grau damals.
Microsoft also announced its first AI weather forecasting model (ClimaX) in early 2023 - microsoft.github.io/ClimaX/
(This is not to say that Aurora is any less interesting as a result)
Are "ConvNets" missing an N?
Interesting read despite the annoyingly clickbaity title
My guess is that the person joined BlueSky after clicking the link to your starter pack. Someone on Reddit thought the same.
jetzt sind alle Kreise ausgezรคhlt - wenn es dabei bleibt waren es etwa 10,000 Stimmen zu wenig fรผr die 5% Hรผrde.
und es fehlt noch 3x BaWรผ, 3x NRW, 1x MeckPomm & 1x Schleswig Holstein...
jetzt auf 284 - und sie stehen bei 5,001% wenn ich mich nicht verrechnet habe beim (BSW / Gรผltige)-Stimmen rechnen.
Das 1,5-Grad-Ziel ist gefรคhrdet, wie aktuelle Berechnungen zeigen. Trotzdem rรคt Klimaforscher Emanuele Bevacqua, daran festzuhalten: Noch sei es mรถglich, die Erderwรคrmung zu verlangsamen.
2022-2025 X Twitter mention data
Here's Twitter's descent since 2022
From my first impression, the largest change might be that you don't need to run the model yourself anymore, which is nice for people who don't have fancy GPUs available. I guess it also streamlines things for people who actually use the forecasts in decision making.
I'm not sure if this is a big change from a scientist's perspective. I thought the code and trained models for GenCast and GraphCast were already on GitHub and some of the forecasts were available on WeatherBench 2? (which is both great of course!) Maybe someone else can clarify :)
Tausende bei Kundgebung auf dem Leipziger Markt vor der CDU Zentrale. Menschen bauen #Brandmauer aus Kartons auf, rufen โalle zusammen gegen den Faschismusโ. Reden von Einzelpersonen und Vertreter:innen von Flรผchtlingsrat, Gewerkschaften, Kirche. #le3001
My esteemed former colleague @danklotz.bsky.social co-chairs a similar session at EGU this year: blogs.egu.eu/divisions/hs...
Isn't the first panel of this figure what you are looking for? bsky.app/profile/cope...
It's the same for me with "downscaling" and "upscaling" - it's used in the opposite way as "downsampling" and "upsampling" in signal processing & machine learning.
... and I saw it in a presentation by @mdebrito.bsky.social
Do you mean the 38th Chaos Communication Congress (CCC =C^3 -> C3) or did I miss a joke?
Or also 2025 = 1^3 + 2^3 + 3^3 + 4^3 + ... + 9^3
Example of realistic rainfall simulations generated by a machine learning model over England and Wales (Addison et al., 2024)
PhD opportunity at Bristol: "Machine Learning for Understanding Extreme Weather in a Changing Climate". Please share with potential applicants. Deadline is Jan 31 12:00.
www.bristol.ac.uk/geography/co...
www.bristol.ac.uk/media-librar...
Which makes training hard, I guess?
Assimilation windows also differ between ERA5 and HRES forecasts (at some time steps), which complicates the evaluation - this is e.g. described in chapter 5.2.2 of the GraphCast supplementary materials
I think the 12h timestep is mostly a consequence of the data ECMWF releases: the assimilation used for ERA5 has differences between the 00z/12z and 06z/18z initialization times (unequal "lookahead", i.e., up to how far in the future are observations used?).
That's an interesting setup - I wasn't aware of it. They seem to use FourCastNet, which from my experience isn't the strongest ML weather prediction model, I would guess it's possible that repeating the analysis with GraphCast or Pangu would yield better results.