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World Data Center for Geomagnetism, Kyoto
The Kyoto center provides geomagnetic observatory data and indices through downloads, APIs, and in-browser plots.
About World Data Center for Geomagnetism, Kyoto
The World Data Center for Geomagnetism, Kyoto provides geomagnetic field data from observatories worldwide along with the AE, ASY/SYM, and Dst indices. It offers downloads, API access through a HAPI Server with in-browser plotting, and a COMPASS service for magnetogram and tellurigram images via IIIF. Real-time Dst and AE indices are available as quicklook values, and some Dst indices are released provisionally.
Key features
- Geomagnetic field data from observatories worldwide.
- AE, ASY/SYM, and Dst geomagnetic indices.
- HAPI Server API for indices and observatory data.
- In-browser plotting for API-accessible data.
- COMPASS access to 1.4 million magnetogram and tellurigram images via IIIF.
- Real-time quicklook Dst and AE indices; real-time AE digital values since December 2024.
Best for: Researchers, educators, and others who need geomagnetic observatory data or AE, ASY/SYM, and Dst indices for analysis.
Good for
- Provides observatory geomagnetic data and AE, ASY/SYM, and Dst indices in one place.
- Offers API access and in-browser plotting through the HAPI Server.
- Includes COMPASS with 1.4 million magnetogram and tellurigram images via IIIF.
Watch out for
- Real-time Dst and AE values are described as quicklook.
- Some Dst index releases are provisional.
World Data Center for Geomagnetism, Kyoto at a glance
- Website
- wdc.kugi.kyoto-u.ac.jp
- Category
- Research & Data › Open Data & Datasets
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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World Data Center for Geomagnetism, Kyoto FAQ
What geomagnetic indices does the site provide?
AE, ASY/SYM, and Dst indices, plus geomagnetic field data from observatories worldwide.
How can I access data programmatically?
The HAPI Server provides indices and observatory data via API, with in-browser plotting.
What is COMPASS?
COMPASS provides 1.4 million magnetogram and tellurigram images via IIIF.
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