# Aurora 1.5: Extending open foundation models for weather and Earth-system applications

DevFeed: [Aurora 1.5: Extending open foundation models for weather and Earth-system applications](<https://devfeed.tech/articles/aurora-1-5-extending-open-foundation-models-for-weather-and-earth-system-applications-6780.md>)

Original publisher: [Read original article](<https://www.microsoft.com/en-us/research/blog/aurora-1-5-extending-open-foundation-models-for-weather-and-earth-system-applications/>)

Author: Kenji Takeda, Haiyu Dong, Jonathan Weyn, Amit Misra, Matt Corey, Kevin White, Shannon Monroe, Juan M. Lavista Ferres, Ashley Llorens, Bonnie Kruft

Published: 2026-07-09T16:46:22Z

Content type: article

Language: en

Sources: [Microsoft Research](<https://devfeed.tech/sources/microsoft-research.md>)

Topics: [foundation-models](<https://devfeed.tech/topics/foundation-models.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Microsoft](<https://devfeed.tech/topics/microsoft.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [hugging face](<https://devfeed.tech/topics/hugging-face.md>), [Fine-tuning](<https://devfeed.tech/topics/fine-tuning.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [fine-tuning](<https://devfeed.tech/tags/fine-tuning.md>), [foundation-models](<https://devfeed.tech/tags/foundation-models.md>), [github](<https://devfeed.tech/tags/github.md>), [hugging-face](<https://devfeed.tech/tags/hugging-face.md>), [microsoft](<https://devfeed.tech/tags/microsoft.md>), [models](<https://devfeed.tech/tags/models.md>), [open](<https://devfeed.tech/tags/open.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [research](<https://devfeed.tech/tags/research.md>), [research-blog](<https://devfeed.tech/tags/research-blog.md>), [update](<https://devfeed.tech/tags/update.md>)

## AI overview

Aurora 1.5 extends Microsoft's open Aurora Earth-system foundation model with 22 additional weather variables, hourly temporal resolution, and probabilistic ensemble forecasting. Released through GitHub with checkpoints on Hugging Face, it is intended for researchers and developers working on weather, climate, energy, agriculture, transport, and related applications.

## Source excerpt

Aurora 1.5 adds 22 more variables, hourly temporal resolution, and probabilistic ensemble forecasting to the Aurora foundation model, making it more useful for real-world weather, climate, and energy applications. The post Aurora 1.5: Extending open foundation models for weather and Earth-system applications appeared first on Microsoft Research.