Europe’s next-generation weather satellite sends back first images

Posted by saubeidl 12 hours ago

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Comment by maciejzj 5 hours ago

ESA has done a lot of good for public benefit with the Sentinel-1/2 missions. I happen to work with remote sensing and Sentinel data has been my entry point to the field.

I hope that ESA keeps pushing forward even more. I am afraid that although Sentinel missions are great, ESA projects are a bit demo-like and limited in scope. Europe should focus on scaling up and applying the tech, not just proving that ambitious projects are possible for their own sake.

Comment by saubeidl 4 hours ago

Don't forget about Euclid, giving us by far the most in-depth view of our universe!

Check out their video on what kind of data it unlocks if you have five minutes and want to get your mind blown. https://youtube.com/watch?v=rXCBFlIpvfQ

Comment by dylan604 3 hours ago

Don't forget terrestrial observing from the ESO with ALMA, VLT, and the under construction ELT down in Chile.

Edit: If you watch the Euclid link above, please don't make the mistake I did and let the player auto select the crappy 720p50 version. Jump up to the 2160p version. It is more than worth it. But as advertised, if you are not impressed with Euclid's imagery after viewing the video, you must be dead.

Comment by NoiseBert69 4 hours ago

ADM-Aeolus was a stellar project too.

Comment by sgc 28 minutes ago

The most surprising thing on this page for me was:

> The areas of least atmospheric humidity ... a large area of ‘dry’ atmosphere also covers part of the South Atlantic Ocean (centre of image).

This area is not that far south as to basically indicate the antarctic, and it is warm season in the southern hemisphere. I did not even think it would be possible to have a larger area of low humidity over a massive ocean like that.

Comment by cyclotron3k 10 hours ago

Would the data from this satellite be freely available to the public? I couldn't see anything obvious

Comment by beklein 10 hours ago

As far as I can tell, they say: "Mission control and data distribution are managed by EUMETSAT." They have published their own blog post here: https://www.eumetsat.int/features/see-earths-atmosphere-neve...

There they say that: "Observations made by MTG-S1 will feed into data products that support national weather services …". So I guess there will be no simple, publicly available REST API or so... but if anybody finds anything, let us know here :)

Comment by jcattle 10 hours ago

Comment by jahller 9 hours ago

nice find. so you need a client_id to access the API

Comment by davedx 9 hours ago

Most weather data isn't generally available by easy to query REST API's (at least not at the original sources). One side project I had I wanted to use NOMADs data, and it was quite a grind downloading and processing the raw datasets into something usable at an application level (or viable to expose via an API).

Comment by jandrewrogers 3 hours ago

Unlikely. EU countries are consistently restrictive about access to this kind of data. Even when it is available, it often has odd restrictive licensing. This is an area where the US, with its liberal data access policies, is far ahead of Europe.

Something else to keep in mind is that the data products are extremely large. It would be expensive to give the public access. I used to host these types of data sets for EU countries. The workload just from authorized users is resource intensive, it doesn't scale cheaply. (I once woke up to find a metaphorical smoking crater where my server racks were because an authorized user shared his credentials with a few friends overnight.)

Comment by mulcyber 3 hours ago

I don't know what you mean.

Data from the Copernicus program has always been fully available, served with a nice web UI, API for both near real time data and archives.

It's the best source of open satellite data by far.

As for the licensing, I never actually looked it up, so maybe you're right.

Comment by jandrewrogers 1 hour ago

There are two aspects to this.

The licensing commonly restricts you to small hobbyist use cases. There are typically restrictions on use of data, the amount of data, and retention of data. I've never looked at Copernicus data before but it appears to have the same kinds of restrictions. This is the licensing equivalent of "source available" rather than true "open source". Hopefully they are improving on this front.

While the data may be available in theory, no one ever invests in the data infrastructure that would allow people to access it in practice. They always have a nice website and API but it is like trying to watch Youtube over a dial-up modem. Usable access is reserved for researchers with an approved use case.

The US government does an unusually good job at both of these in my experience. Even when US public data sets that are not readily available online, you have to contact someone, it is usually for good reason. For example, because they are multi-exabyte data sets sitting on tape somewhere that almost no one ever asks for.

Comment by Propelloni 3 hours ago

Isn't EUMETSAT data usually under CC-by-SA 3.0? So all you have to do is to register with them and get your client ID for API access, or are there more hoops to jump through?

Comment by Aloisius 1 hour ago

Core data is CC-BY-4.0, "recommended" data is licensed with a fee for certain commercial uses.

https://user.eumetsat.int/resources/user-guides/data-registr...

Comment by pastage 10 hours ago

As most EU projects yes. There was test data released last year to get you started.

https://user.eumetsat.int/resources/user-guides/getting-star...

Comment by SirHumphrey 9 hours ago

Well, at least in my experience with EU projects, they tend to be much more restrictive with data sharing than equivalent US institutions: e.g. a lot of paid EUMET data has publicly available NOAA equivalents - though usually of worse quality.

Comment by pastage 8 hours ago

Yes! That government agencies data is PD is a nice feature of US law, we should implement that in EU.

Comment by wolvoleo 6 hours ago

Try to ask the NRO for their images and see how you go :)

Comment by dylan604 2 hours ago

Intelligence gathering data vs weather data. Yeah, that's the same thing.

Comment by stiray 5 hours ago

Not Public Domain, TD - Taxpayers Domain. :)

Comment by 5 hours ago

Comment by bayindirh 5 hours ago

Take a look at https://zenodo.org/communities/eu/

Yes, it's not everything, but it's a start.

Comment by IshKebab 9 hours ago

Not sure why you're being down-voted. US weather models are free. EU models are not.

Comment by tcumulus 8 hours ago

Depends on which model. Only really the ECMWF weather model is not fully free. The German, French, Dutch, ... models are all free (regional and global models). Of course, these global models are generally less accurate than ECMWF, still ECMWF has a lot of free data available too. US models are also freely available, and quite easy to work with (as opposed to some European ones).

Comment by graemep 5 hours ago

It is not an EU project. It is an ESA and EUMETSAT project. Neither is an EU organisation. Both have multiple non-EU members, and I do not think all EU countries are members of either.

Comment by pbhjpbhj 6 hours ago

There was a good CCC talk on pulling images from weather sats (and data from other satellites) - https://youtu.be/fM5w7bFNvWI?si=Dq6S6nYOE_frAd7b

It's been done before, but this was a great talk imo.

Comment by jcattle 10 hours ago

Yes, it will be freely available to the public

Comment by bitschubser_ 10 hours ago

I guess you will be able to access the data with copernicus (usually thy even provide raw L0 data)

Comment by cess11 6 hours ago

If they'll publish it through Copernicus, it'll probably show up here:

https://browser.dataspace.copernicus.eu/

Comment by plantain 9 hours ago

Definitely not in anything like realtime, maybe an archive. There's a licence fee of 8000EUR/yr to access real-time EUMETSAT data. Welcome to Europe, where you pay for everything twice.

Comment by vidarh 6 hours ago

There's an 8k license for "recommended" (not "core", which is free under CC-BY-4.0 for all purposes) data if you are a service provider or broadcaster:

https://user.eumetsat.int/resources/user-guides/data-registr...

There are also fees in some other circumstances, but not for "personal, educational, research" use.

Comment by pantalaimon 4 hours ago

lame, with GOES-18 you can just download the latest full disk image in real time. Makes for a nifty desktop background when combined with a systemd user timer that fetches the current picture of the earth every 15 minutes.

https://www.goes-r.gov/multimedia/dataAndImageryImagesGoes-1...

Comment by anfogoat 8 hours ago

Hah! I don't believe this for a second. No, you need the 8k, a business entity (at the very least), five different licenses of some sort, and then some form of accreditation.

Comment by trilogic 6 hours ago

Europe Is back on the map. It´s going slow but steady. Hope they involve community in their tech projects.

Comment by jandrewrogers 3 hours ago

Europe is widely acknowledged as having arguably the best global weather systems. This isn't new. There are only a handful of organizations world-wide maintaining global weather models.

The US government, uniquely, maintains two independent global weather models. Neither is as good as the European model. Arguments have been made for combining the US budgets to produce a best-in-class weather model but politics makes that unlikely to happen.

Comment by NoiseBert69 4 hours ago

Europe was always great in weather/earth observation from space.

Their stuff basically works 24/7/365 without causing much noise. With fully automated data intake processes.

Comment by Archelaos 4 hours ago

Europe has always been #1 in weather forecast.

Comment by Archelaos 2 hours ago

The downvotes seem to indicate that the HN community is less informed and more prejudiced than I expected. For some background information: here is a Scientific American article from 2015 on the topic: https://www.scientificamerican.com/article/are-europeans-bet... Quote: "Overall, the consensus among meteorologists and other scientists is that the European model is better overall in forecasting weather."

Comment by jandrewrogers 2 hours ago

As with everywhere else, it is not unusual for people with little knowledge to have strong opinions. Humans doing human things.

Europe having the best weather model is not remotely controversial to anyone familiar with the subject.

Comment by aleciffo 11 hours ago

Does anyone know what are we talking about in practice in terms of weather forecast prediction improvement? Like MAE/RMSE

Comment by lauri_jo 10 hours ago

This data is from the third generation of Meteosats, which are the European meteorological satellites. A lot like GOES in the north-America. The main improvement is really significant improvement in resolution. The resolution is, depending on the channel, 9 times better than in the second generation. The main improvement in forecasting comes due to better information in the initial condition of the numerical weather prediction, but it is hard to quantify in advance. I'd be surprised if MAE, over the 15 days the prediction spans, would improve more than 0.1 C, if we talk about the raw prediction. There are plenty of things that this data is used for, but I would say that improved nowcast of cloud coverage, and energy production related parameters are likely to benefit most from the improvement in resolution.

Comment by mturmon 2 hours ago

They also feature that the IR hyperspectral measurement is new -- 1700 channels in IR for a telescope in GEO seems new to me, but I'm not sure what exists now in this space.

They say they hope to retrieve trace gases at that global scale (seemingly with 30 minute cadence), which I think would be new. Also, they seem to say that this spectral resolution would enable them to retrieve temperature and humidity as a function of height -- not just surface temperature and column-integrated water content ("humidity").

Aha, here's a nice link (https://www.ssec.wisc.edu/geo-ir-sounder/) on exactly this question, pointing out the NASA IR sounders that have existed for many years (AIRS). These instruments get vertically-resolved atmospheric information, but they are not at GEO so their coverage is different. This makes them less useful for NWP.

Comment by mjanx123 9 hours ago

I use windy.com for its 'compare models', the models can differ by ~2C sometimes

Comment by Beretta_Vexee 7 hours ago

The difference in wind speeds can be quite significant, which greatly alters some forecasts.

The question is often when it will rain, not if it will rain.

Comment by peyton 11 hours ago

I was curious but it’s surprisingly hard to find info. These guys [1] are pretty stoked about “nowcasting”—which seems to be on sub-10-minute timescales to issue local severe weather warnings and such. It appears current sounders don’t scan as often.

This project ppt from 2011 [2] references different requirements for different areas/teams and shows the instrument spits out readings at 150 Mbit/s, which seems like a good clip. Overall it sounds like a lot of local knowledge is involved in turning this output into forecasts. Maybe there’s not a precise answer to your question.

Somebody else must know more.

[1]: https://www.eumetsat.int/features/think-global-act-local

[2]: https://www.researchgate.net/profile/Donny-Aminou/publicatio...

Comment by atoav 11 hours ago

This is an improvement as it provides better data and has nothing to do with the models that are used in a separate step to forcast anything. But that is said in the article as well, with the satellite being the first hyperspectral view on Europe and North Africa.

I am not sure what to make if your question.

Comment by hobofan 10 hours ago

> I am not sure what to make if your question.

They are asking for a quantification of improvement. "better" predictions could range from "only experts notice" to "the daily/7 day weather is now noticeably more accurate for all citizens of Europe".

Comment by KeplerBoy 11 hours ago

Ultimately better data will lead to and enable better models and forecasts, but I'm sure it's not super easy to put a number to that.

Comment by monkeydust 10 hours ago

Been pulling in some of the newer data and concepts from open-meteo to my home weather display specifically the ensemble data, helps to provide some level of spread over the forecast, I mean I am not that sure how useful it is but I kinda got used to reading it of the display.

https://openmeteo.substack.com/p/ensemble-weather-forecast-a... https://open-meteo.com/en/docs/ecmwf-api https://open-meteo.com/en/docs/ensemble-api

Comment by accrual 4 hours ago

Congrats ESA! Those first images are pretty striking. It's pretty cool to see the contrast between the blue high altitude clouds and the red hot surface, particularly just below the Sahara.

Comment by eypandabear 10 hours ago

Also check out the EUMETSAT site if you want more information on how the data is used:

https://www.eumetsat.int/features/see-earths-atmosphere-neve...

Comment by lormayna 4 hours ago

Is there any info about the modulation/encoding/frequency? It would be great to have an open source decoder for RTL-SDR like we have for NOAA or METEOR.

Comment by hubraumhugo 11 hours ago

I recently met a European space startup founder and was surprised to learn how much space innovation is happening in Europe with ESA. Europe wants to become less depended on SpaceX and NASA, and is heavily investing there. More funding + strong aerospace programs at universities like TU Munich has led to companies like ISAR Aerospace (SpaceX competitor), which is great to see.

Comment by TrackerFF 11 hours ago

I work in the domain, and it is true that many of the startups will almost entirely use free data, like from the sentinel satellites via ESA. It really lowers the barriers to entry, if you have a nice idea.

EDIT:

We actually work close with one startup that sprung out from academia. The founders wrote their masters thesis on object detection and pattern recognition using sentinel imaging. They had basically one product: to detect certain objects. After a couple of years they had gotten a handful of customers (basically they'd receive coordinates to some are of interest, and then tasked with trying to detect something), which afforded them to purchase commercial data (from other types of sensors) for building more robust systems. This in turn grew their customer bas, and they started adding products.

Then they were acquired by one of the largest private space companies.

But, in any case, it all started with access to free data. Would they have started a company like this, if they hadn't had access to the data from ESA? Who knows, but it made it all much easier. And they were able to completely bootstrap the company.

Comment by joeig 11 hours ago

If you are ever in Munich and want to find out more, be sure to visit the ESO Supernova[0].

[0] https://supernova.eso.org/

Comment by jahller 9 hours ago

definitely worth a visit. loved the exhibition about the Atacama desert telescopes. especially great for kids.

Comment by KellyCriterion 11 hours ago

There are even Hackathons from ESA:

"Act in Space"

https://actinspace.org/

I worked at one of the hosts of one these events years ago - very intersting people there!

Comment by 3D30497420 11 hours ago

Very cool!

Small odd thing, but that's the first tracking warning modal I've seen that says they don't actually use tracking. And I can decline the no tracking? Kinda funny.

Comment by KellyCriterion 2 hours ago

"Advanced EU-regulatory conform implementation of latest requirements" ;-) ;-)

Comment by simgt 11 hours ago

maiaspace (https://www.maia-space.com/) also intends to compete with SpaceX and is an Ariane spin-off, they're meant to do their first launch this year and start putting satellites in LEO in 27

Comment by dagi3d 10 hours ago

There is also a Spanish company which according to them, they were the first private European company to reach space with their rocket: https://www.pldspace.com/en/

Comment by panick21_ 8 hours ago

There were once about 300 small rocket companies. About 250 of them are dead by by now.

The Europeans were late to the game, and their companies got some late investment.

Out of those 300 companies basically 0 of them have actually made money with rockets. Companies like RocketLab pivoted to in-space stuff and that's where they actually make money.

Pretty much every single small rocket company has lost money with small rockets and pivots to larger rockets where there is more demand because of constellations. But in Europe, that will be near impossible because of the Ariane monopoly.

And closing the case on reuse for small rockets is even more difficult.

I really think calling companies that have barley done a test-launch 'spacex competitors' is a silly. At best its a luxury competitor to SpaceX ride-share launches.

Comment by riffraff 9 hours ago

there's a pretty great blog following european space news

https://europeanspaceflight.com/

A lot has been happening in recent years with launchers once ESA broke the Ariane "chokehold".

Comment by panick21_ 8 hours ago

Except of course the Ariane chockhold never existed for small rockets. Because Vega exists. And for large rockets the "chokehold" very much continues to exist and shows absolutely zero evidence of going away in the next decade.

So far the support for these small launchers has been mostly for new missions and nowhere near in the volume to support even two of these small launch companies. Specially if Vega also survives as a rocket.

Europe simply does not produce enough launches for these companies. And all of them will suffer from very low launch rates and non will be able to seriously compete for international payloads.

Comment by usrusr 8 hours ago

At this point, calling ISAR a competitor to SpaceX feels a bit like calling Pringles a competitor to TSMC, but it's certainly good to see some movement happening.

Comment by johanneskanybal 6 hours ago

For sure, it's booming in the current climate. My biggest bet for 2026 is Eutelsat which is the biggest star link competitor.

Comment by saubeidl 11 hours ago

Europe is behind in launchers, but the stuff they send up is top-notch.

Euclid, the latest ESA telescope is particularly mind-blowing, capturing a third of the visible sky in incredible detail.

Check out this update video, it's insane how they can zoom in on stuff: https://youtube.com/watch?v=rXCBFlIpvfQ

Comment by 7 hours ago

Comment by panick21_ 8 hours ago

Can you show some actual evidence of that? Because evidence actually shows that commercial growth in the US outpaces Europe by a gigantic degree. The traditional European companies like Airbus has made lots of loses. European companies are not even competing in the LEO race to any serious degree.

Their 'compete with SpaceX' Ariane 6 rocket has been an unmitigated disaster. And in order to 'compete with SpaceX' they are giving billions in subsidies to Amazon instead, I guess that is better. And its exactly what they didn't want to do when they designed the Ariane 6 program in the first place.

> companies like ISAR Aerospace (SpaceX competitor)

If anything they are a far, far, far inferior competitor of RocketLab. SpaceX isn't even in the same universe as ISAR.

The simple fact is, small rocket companies are not viable, and pretty much all of them are not profitable and/or go bust. RocketLab itself basically never made money from rockets, the pivoted mostly to in-space stuff.

Maybe one of the small European rocket companies can survive if it gets enough support from ESA, but then moving on to anything beyond that is going to be hard.

> NASA, and is heavily investing there

If we look at ESA and EU space budget, we can see that it goes up a bit, but nowhere near close to anything in the US.

So yes, there is some energy in the European space sector, but its very easy to overestimate, and specially if you look at it compared to the US.

Comment by _fizz_buzz_ 9 hours ago

The Trump administration is probably helping quite a bit on two fronts here:

- A very strong political will to decouple strategic industries from the US

- The US is making it a lot harder to work there. So top talent stays in Europe.

Comment by wolvoleo 6 hours ago

- Top talent doesn't even want to move to the US anymore either.

I mean really I'm super progressive and LGBTIQ+ aligned. I'm not even flying there for a meeting anymore, sorry. My employer is European and I'm part of the inclusion team, they are understanding me refusing US travel.

Comment by goldenarm 5 hours ago

With the massive budget cuts of the NOAA and DMSP, I am glad someone else can fill that gap.

Comment by NetMageSCW 4 hours ago

Those are proposed cuts and it is certainly possible Congress pushes back on most of those, as they did with NASA.

Comment by 2 hours ago

Comment by haritha-j 10 hours ago

I hate to worry everyone, but I think there might be some triangular chunks missing off the corners of our planet, someone should probably look into this.

(Specifically around 2, 5, and 10 o clock on the orientation of the images provided)

Comment by Y-bar 8 hours ago

Don't worry, it's just a few shadows of the Vogon Construction fleet: https://scifi.fandom.com/wiki/Vogon_Constructor_Fleet

Comment by riffraff 9 hours ago

I see this comment being downvoted, but it made me giggle, thanks :)

Comment by 10 hours ago

Comment by FpUser 6 hours ago

>"Most engineers (including me) spent months grinding LeetCode ..."

I have not done it once (work in programming for 40+ years) as independent. Few times potential clients tried to play this game but I just simple refuse. On was surprised and asked why? My answer was - I have a track record of successful deliveries, here is big list of projects, emails and phone numbers to confirm. If you are going instead to rely on some tests to prove my abilities I have better things to do then be a schoolboy on exams.

Comment by sophiebits 6 hours ago

(Wrong thread; think you meant to post this on https://news.ycombinator.com/item?id=46809069.)

Comment by andrewstuart 6 hours ago

I wonder if hobbyists would be able to pick up this data using some sort of RF capture device.

Comment by NoiseBert69 4 hours ago

Picking it up is no problem for some specialists in the (ham) radio scene. They are mastering X- and S-band stuff so good that even the NASA asked them to join in some observations in the past.

But: Meteosat is very famous for encrypting their stuff.

Comment by pbhjpbhj 6 hours ago

See my comment above re a CCC.de video from 38C3.

Comment by mediaglitch1 5 hours ago

my weather app is still gonna tell me its raining while its not

Comment by celsoazevedo 3 hours ago

Probably, if your weather app doesn't use a good data source for your area(s).

Try a different app. Some let you choose from a list of different weather sources.

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