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README.md
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pretty_name: TerraMesh
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# TerraMesh
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> **A planetary‑scale, multimodal analysis‑ready dataset for Earth‑Observation foundation models.**
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**TerraMesh** merges data from **Sentinel‑1 SAR, Sentinel‑2 optical, Copernicus DEM, NDVI and land‑cover** sources into more than **9 million co‑registered patches** ready for large‑scale representation learning.
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**Dataset release – End of June.**
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## Performance evaluation
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pretty_name: TerraMesh
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size_categories:
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# TerraMesh
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> **A planetary‑scale, multimodal analysis‑ready dataset for Earth‑Observation foundation models.**
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**TerraMesh** merges data from **Sentinel‑1 SAR, Sentinel‑2 optical, Copernicus DEM, NDVI and land‑cover** sources into more than **9 million co‑registered patches** ready for large‑scale representation learning.
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**Dataset release – End of June.**
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## Performance evaluation
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TerraMesh was used to pre-train [TerraMind-B](https://huggingface.co/ibm-esa-geospatial/TerraMind-1.0-base).
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On the six evaluated segmentation tasks from PANGAEA bench, TerraMind‑B reaches an average mIoU of 66.6%, the best overall score with an average rank of 2.33. This amounts to roughly a 3pp improvement over the next‑best open model (CROMA), underscoring the benefits of pre‑training on TerraMesh.
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Compared to an ablation model pre-trained only on SSL4EO-S12 locations TerraMind-B performs overall 1pp better with better global generalization on more remote tasks like CTM-SS.
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