Jonathan Wider
@jonathanwider.bsky.social
PhD student @ufz.de and @scadsai.bsky.social. Interested in applying ML to study weather, climate, and compound extreme events.
someone should create a swimming ring from this!
September 30, 2025 at 11:12 AM
someone should create a swimming ring from this!
Figure 1 shows this nicely visually. I also only learned about this recently
September 4, 2025 at 10:06 AM
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 σ on a calibration set and then defining extremes on a test set based on whether they exceed n * σ can lead to overestimating the extremeness of the event. doi.org/10.1002/2015...
Quantifying changes in climate variability and extremes: Pitfalls and their overcoming
Conventional normalization of spatiotemporal data sets with respect to a reference period induces artifacts
Normalization-induced artifacts are most severe if variability or extremes are under scru...
doi.org
September 4, 2025 at 10:05 AM
Not to say it would alter any conclusions, but it's good to keep in mind that this methodology of computing σ on a calibration set and then defining extremes on a test set based on whether they exceed n * σ can lead to overestimating the extremeness of the event. doi.org/10.1002/2015...
I checked a few ones and could see the prompt in the arxiv HTML version
July 5, 2025 at 7:35 PM
I checked a few ones and could see the prompt in the arxiv HTML version
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)
(This is not to say that Aurora is any less interesting as a result)
ClimaX - ClimaX
microsoft.github.io
May 22, 2025 at 9:32 AM
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)
(This is not to say that Aurora is any less interesting as a result)
Are "ConvNets" missing an N?
May 20, 2025 at 4:11 PM
Are "ConvNets" missing an N?
My guess is that the person joined BlueSky after clicking the link to your starter pack. Someone on Reddit thought the same.
March 10, 2025 at 11:50 AM
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 ausgezählt - wenn es dabei bleibt waren es etwa 10,000 Stimmen zu wenig für die 5% Hürde.
February 24, 2025 at 12:56 AM
jetzt sind alle Kreise ausgezählt - wenn es dabei bleibt waren es etwa 10,000 Stimmen zu wenig für die 5% Hürde.
und es fehlt noch 3x BaWü, 3x NRW, 1x MeckPomm & 1x Schleswig Holstein...
February 24, 2025 at 12:19 AM
und es fehlt noch 3x BaWü, 3x NRW, 1x MeckPomm & 1x Schleswig Holstein...
jetzt auf 284 - und sie stehen bei 5,001% wenn ich mich nicht verrechnet habe beim (BSW / Gültige)-Stimmen rechnen.
February 24, 2025 at 12:10 AM
jetzt auf 284 - und sie stehen bei 5,001% wenn ich mich nicht verrechnet habe beim (BSW / Gültige)-Stimmen rechnen.
Reposted by Jonathan Wider
Here's Twitter's descent since 2022
February 6, 2025 at 9:16 AM
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.
January 31, 2025 at 5:48 PM
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 :)
January 31, 2025 at 5:27 PM
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 :)
My esteemed former colleague @danklotz.bsky.social co-chairs a similar session at EGU this year: blogs.egu.eu/divisions/hs...
The value of failure: Learning from what didn’t work
“What failure prepared you for later success?” Tim Ferriss often asks this question to the high-performing guests on his podcast, giving them the opportunity to reflect on how setbacks have shaped the...
blogs.egu.eu
January 30, 2025 at 11:06 AM
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...
🌡️ A record-breaking climate year in seven key charts. Discover the data from the Global Climate Highlights 2024 report: bit.ly/3DZs8jn
#C3S #CopernicusClimate
#C3S #CopernicusClimate
January 20, 2025 at 1:30 PM
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.
January 9, 2025 at 3:39 PM
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
January 8, 2025 at 10:00 PM
... 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?
January 1, 2025 at 10:22 AM
Do you mean the 38th Chaos Communication Congress (CCC =C^3 -> C3) or did I miss a joke?