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GPS-TEC

GEONET Total Electron Content
Two-dimensional TEC map over Japan by Kyoto University

Madrigal Database
GPS-TEC by MIT Haystack Observatory

JPL-GPS Networks and Ionospheric Systems Development
GPS-TEC by JPL

GPS Receiver Network

SOPAC
Scripps Orbit and Permanent Array Center

IGS
International GNSS Service

CORS
Continuously Operating Reference Stations

Data Viewer

DAGIK (Daily Geospace data in Kml) data-showcase
A data-showcase for geospace science, and geophysics

For questions and comments, please contact:
Takuya Tsugawa []