Species Observation Service, Butterflies of Ireland, iNaturalist. Own analysis and model;
• Relief: ETOPO 2022, NOAA NCEI (CC0) · Land & borders: Natural Earth
• Photo: Romzig, Wikimedia Commons, CC0, cropped
• Not endorsed by GBIF, the data publishers or NOAA
📊 Data Sources:
• Butterfly reports: GBIF Occurrence Download DOI 10.15468/dl.utdtm7 (10 Nov 2026), 2,237 datasets under CC0 and CC BY 4.0, among them UK Butterfly Monitoring Scheme, info fauna (Swiss National Fauna Databank), NABU|naturgucker, Artportalen, Norwegian
Royalty Free Music from https://t.co/DESlkFY8QC
Track: Analysis by Twotriangles
https://t.co/kw9PsMy3sd
📊 Data Sources:
• Built-up surface and settlement model: European Union, GHSL R2023A (CC BY 4.0)
• Country borders: Natural Earth (public domain)
A visual reconstruction of Homo erectus' journey across the world. Due to gaps in the fossil record, some migration routes and timelines are based on scientific interpretations.
Royalty Free Music from https://t.co/DESlkFY8QC Track: Sleep by VictorWayne https://t.co/bWcXRu6XQL
What if a tsunami hit Estonia? A 500 m wave, simulated on real terrain.
Simulation, not a real event.
#tsunami#geography#simulation
Music: Blackout by Colinroot (https://t.co/DESlkFY8QC) https://t.co/gUQ87TjndR
Terrain-aware fictional simulation for education and entertainment, not a forecast or warning.
Data: Copernicus DEM GLO-90, ETOPO 2022 (NOAA, Public Domain), Natural Earth, GeoNames (CC BY 4.0), GHS-UCDB, EC JRC (CC BY 4.0)
One year on Mars: surface temperature through the seasons
Data:
MGS Thermal Emission Spectrometer albedo and thermal inertia: NASA/JPL-Caltech/ASU (public domain)
MOLA elevation (MEGDR): NASA/GSFC (public domain)
Map and model: https://t.co/qReAmpwTGv
• Vegetation and ice sheets before 10,000 BC: Krapp, M. et al. (2021), Terrestrial climate of the last 800,000 years (CC BY 4.0), doi:10.17605/OSF.IO/8N43X
• Land and lakes: Natural Earth (public domain)
• Arrival dates and population estimates from published research: Sjödin et al. 2012, Gautney & Holliday 2015, Tallavaara et al. 2015, Ragsdale et al. 2023, Sümer et al. 2025
📊 Data Sources:
• Population: HYDE 3.2.1, Klein Goldewijk et al. (2017), PBL Netherlands Environmental Assessment Agency (CC0)
• Sea level: Spratt, R. M. & Lisiecki, L. E. (2016), Climate of the Past 12, NOAA NCEI Paleoclimatology
• Relief: ETOPO 2022, NOAA (public domain)