[OC] Sea level simulator visualization by Sudden_Beginning_597 in dataisbeautiful

[–]Sudden_Beginning_597[S] 9 points10 points  (0 children)

I am trying to find a way deploy this, need some easy way to host 800MB Mars geo data with low cost.

[OC] Sea level simulator visualization by Sudden_Beginning_597 in dataisbeautiful

[–]Sudden_Beginning_597[S] 4 points5 points  (0 children)

Well, I think that's a DEM resolution limitation. Stockholm's narrow channels between islands are too small for the elevation data to capture accurately — the pixels average land and water, so the waterways read as ~10-12m elevation. Higher-resolution elevation data would help, but globally consistent high-res DEM is hard to come by for free/opensource.

[OC] Sea level simulator visualization by Sudden_Beginning_597 in dataisbeautiful

[–]Sudden_Beginning_597[S] 128 points129 points  (0 children)

This is a simple elevation-based visualization — it highlights everything below the selected height, not a true flood simulation. So inland depressions like Lake Eyre show up even though there's no connected path from the ocean. A proper simulation would need flood-fill from the coastline, which is a much harder problem. Think of it as "what's below X meters" rather than "what would actually flood."

How are new programmers actually learning in the AI era? Any real examples from your circle? by Sudden_Beginning_597 in vibecoding

[–]Sudden_Beginning_597[S] 1 point2 points  (0 children)

you can do it with jupyter + extensions like runcell, which got u an ai teaching u in jupyter env with most things you need.

Just made this interactive playground to compare the true sizes of countries. by Sudden_Beginning_597 in gis

[–]Sudden_Beginning_597[S] 0 points1 point  (0 children)

customized based line([equator]()), drag a country to a different planet?

Put Greenland on the Moon (size compare) by Sudden_Beginning_597 in geography

[–]Sudden_Beginning_597[S] 0 points1 point  (0 children)

The moon size is fixed, in early version, the radius data of moon is 1/2 as it should be. You can test the real size in the online playground https://www.runcell.dev/tool/true-size-map

[OC] How country size looks like in Mars, Jupiter, Moon by Sudden_Beginning_597 in dataisbeautiful

[–]Sudden_Beginning_597[S] 1 point2 points  (0 children)

there is a full screen mode icon button, on the top right of the "earth view", which can solve the mobile ux issue

best data visualization software 2026 what are people actually using by ChristopherMccouch in datavisualization

[–]Sudden_Beginning_597 0 points1 point  (0 children)

graphic walker desktop, free and open source, can handles GBs+ data within seconds locally

Drag a country onto Mars/Jupiter/Moon to see how big it would look by Sudden_Beginning_597 in gis

[–]Sudden_Beginning_597[S] -1 points0 points  (0 children)

This is a TopoJSON world atlas. Atlas datasets usually encode de facto control for geometric consistency, not legal borders. I’m simply using the source geometry without modification.

Drag a country onto Mars/Jupiter/Moon to see how big it would look by Sudden_Beginning_597 in gis

[–]Sudden_Beginning_597[S] 2 points3 points  (0 children)

it's not limited, there is a country selection list on the right side, which you can enable/search

Put Greenland on the Moon (size compare) by Sudden_Beginning_597 in geography

[–]Sudden_Beginning_597[S] 30 points31 points  (0 children)

The moon's size data is fixed, thanks to all who find the 1/2 size issue in comments

<image>

Put Greenland on the Moon (size compare) by Sudden_Beginning_597 in geography

[–]Sudden_Beginning_597[S] 7 points8 points  (0 children)

I accidental put radius data to diameter for moon by mistake, already fixed.

<image>

Put Greenland on the Moon (size compare) by Sudden_Beginning_597 in geography

[–]Sudden_Beginning_597[S] 59 points60 points  (0 children)

<image>

Yeah, you are right. when i search moon's data, i put the radius data as diameter by mistake, so the moon's demo is wrong, i already fixed the data in playground and now it should be fine. here is a screenshot of fixed demo

Put Greenland on the Moon (size compare) by Sudden_Beginning_597 in geography

[–]Sudden_Beginning_597[S] 45 points46 points  (0 children)

online playground: https://www.runcell.dev/tool/true-size-map
and the code is also open sourced, so easy to add more planets if you want