#3036: palma, sea ice, migration, transport, megacities
, last check: Thu, 30 Apr 2026. Post history
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palma
Viewer of orthophotos of Palma, from the American flight series B of 1956 to the color flight of 2023 with 6 cm pixels, which allows them to be compared side by side
[CA]
https://cartografia.palma.es/visorortofotos/ -
sea ice
Geomorphons are classes of topographic features determined using a neighborhood approach, useful for identifying deformations in sea ice
https://www.spatialised.net/identifying-deformed-sea-ice-using-geomorphons/ -
migration
A permanent migration record to and from 181 countries based on a single consistent information source, for each month from the beginning of 2019 to the end of 2022
https://www.nytimes.com/interactive/2025/04/17/opinion/global-migration-facebook-data.html?unlocked_article_code=1.AU8.ZvK-.RZuvu1ogrWSd -
transport
Lars, a transport planner in Switzerland, edits and publishes unofficial transport maps that can be downloaded and used with attribution.
https://larstransportmaps.com/ -
megacities
The OpenspaceGlobal product is a 1.19 m resolution UOS (urban open space) map of 169 megacities to improve understanding of artificial spatial surfaces
https://idp.nature.com/transit?redirect_uri=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41597-025-04924-x&code=bc466060-0cc9-413a-a461-8a37e7e52d60
Raf