Japanese Geomagnetic Data Service


The rules for the data use and exchange are defined by WDS Data Policy.
The appropriate institution(s) is also supplied with the WDC data sets. If the data are used in publications and presentations, the data suppliers and the WDC for Geomagnetism, Kyoto must properly be acknowledged.

Commercial use and re-distribution of WDC data are, in general, not allowed. Please ask for the information of each observatory to the WDC.

The construction of this database has been supported in part by grants 127008, 168069, 178061, 188071, 198053, 208041, 218046, 228040, and 238033 ("Solar-Terrestrial Physics Database") as well as by grants 248032 and 268023 ("Database of high time resolution geomagnetic field data back to 1920's") under the Japan Society for Promotion of Science (JSPS). We also thank many geomagnetic observatories, institutions and international organizations which kindly supply the data to our data center.

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Geomagnetic Field Data at the Observatories

Geomagnetic Field Model