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World Data Centre

The World Data Centre for Geomagnetism, Mumbai (WDC-Mumbai) is the part of the Indian Institute of Geomagnetism, an autonomous research institute under the Department of Science and Technology, Govt. of India. The Centre is situated in the campus of Colaba Magnetic Observatory, Mumbai.  The Colaba observatory was operational from 1841 to 1906. Continuity of the magnetic observation is maintained with the commissioning of Alibag magnetic observatory. The Colaba - Alibag combined series makes the magnetic data for a period of more than 175 years. This Centre has collected a comprehensive set of analog and digital geomagnetic data as well as indices of geomagnetic activity supplied from a worldwide network of magnetic observatories. The Data Services at the WDC are available for scientific use without restrictions.

The continuous geomagnetic field observations at hourly and one-minute resolution from the magnetic observatories of IIG are regularly published and can be accessed through WDC-Mumbai ( for academic and scientific use without any restriction. The WDC-Geomagnetism, Mumbai is now a member of the new global ICSU WDS system.  

Visit the main page of WDC for Geomagnetism, Mumbai at