The Musaicum EU-plus 10M resolution image of Europe

https://imagico.de/blog/en/announcing-the-musaicum-eu-plus-10m-resolution-image-of-europe/

by hk__2 • 3 years ago

138 25 3 years ago

imagico.de

defrost• 3 years ago

Good article, good end result dataset.

Worth it for the discussion regarding optimal scales for aggregating pixel stats.

Almondsetat• 3 years ago

I would suggest lower casing the "M" as it stands for "meters" . By reading the submission title (the article one is correct, I don't know why you changed it) I couldn't figure out which mega units it was referencing (pixels, bytes,?)

asicsp• 3 years ago

Lowercase to uppercase might have been an automatic change by HN too.

heikkilevanto• 3 years ago

Then spell it out as "10-meter". Having a clear and understandable headline is better than saving a few characters.

layer84• 3 years ago

HN titles can be edited by the submitter after submission. The automatic normalization only happens on the initial submit.

It would be nice if HN would display a message after submitting that the submitter should check the changed title.

kleiba• 3 years ago

I still don't quite understand what 10m means in this context. Sorry, I'm slow.

abwizz• 3 years ago

1 pixel = 10 meters

i'm slow too

7373737373• 3 years ago

What is the total file size of this?

layer84• 3 years ago

It’s roughly 5000 x 5000 km, so 250 gigapixels. With 24-bit color, that would be about 700 GB uncompressed. Lossless compression can probably reduce that by a factor of ten or more.

zigzag312• 3 years ago

Which lossless compression would compress images like this by a factor of ten or more? Isn't lossless image compression ratio more like around 2:1?

Culonavirus• 3 years ago

This may be a little off topic, but does anyone know of high resolution public domain datasets that can be used as basis for the rendering of the Earth's surface? Normal, albedo, etc.? Do they even exist? I know Nasa has some but what I found was tiny (100k res images and such are really low res when we're talking about the entire planet).

noman-land• 3 years ago

OpenStreetMap tiles maybe?

habi• 3 years ago

OpenStretMap does not have aerial imagery per se, several imagery layers are available only for tracing features off them: https://wiki.openstreetmap.org/wiki/Using_aerial_imagery#Ima...

arlort• 3 years ago

https://scihub.copernicus.eu/

No clue if it's enough for your purposes, but I think this is the basis for the article

enriquto2• 3 years ago

Sentinel 2 images are freely accessible, paid by european citizens through the copernicus program. There's also landsat 8 images, of similar resolution (10m/pixel for visible, lower in infrared bands). The revisit time depends on the latitude, but roughly you have a new image of the whole earth every week.

Maybe that's too high res for your application?

blamazon• 3 years ago

USA only and with caveats but the US Department of Agriculture operates the National Agricultural Imagery Program:

https://naip-usdaonline.hub.arcgis.com/

fleischhauf• 3 years ago

what's the highest resolution satelite data that is commercially available actually?

enriquto2• 3 years ago

worldview3 and pléiades neo have about 30cm per pixel (the images are sold by third-party vendors such as maxar, airbus)

zokier• 3 years ago

How are Airbus and Maxar 3rd party vendors here? They own and operate the satellites themselves

wongarsu• 3 years ago

10cm, available from e.g. https://nearspacelabs.com/ (using stratospheric balloons), or in 2025 from https://albedo.com/ (using satellites).

The Musaicum EU-plus 10M resolution image of Europe

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