IRIS DMC Data Services Products: EMTF, The Magnetotelluric Transfer Functions
Dates
Publication Date
2011
Start Date
1980
Citation
Kelbert, A., Erofeeva, S., Trabant, C., Karstens, R., Van Fossen, M., Egbert, G. D., and Schultz, A., 2011, IRIS DMC Data Services Products: EMTF, The Magnetotelluric Transfer Functions: U.S. Geological Survey, https://doi.org/10.17611/DP/EMTF.1.
Summary
Magnetotelluric (MT) method is a branch of geophysics that employs very large-scale natural sources from the solar wind and lightning. Modern-day MT uses state-of-the-art instrumentation, data processing and analysis tools to provide valuable information about deep Earth structure, complimentary to that of seismic data. These days, MT data also serve as a primary resource for estimation of geomagnetically induced currents, hazardous to modern infrastructure. However, there is a real need to modernize deeply historic MT data formats to a common standard that is fully documented, platform-independent, extensible, and accessible to the broader community of geoscientists. In the past decade, we have led just such an effort. This work [...]
Summary
Magnetotelluric (MT) method is a branch of geophysics that employs very large-scale natural sources from the solar wind and lightning. Modern-day MT uses state-of-the-art instrumentation, data processing and analysis tools to provide valuable information about deep Earth structure, complimentary to that of seismic data. These days, MT data also serve as a primary resource for estimation of geomagnetically induced currents, hazardous to modern infrastructure. However, there is a real need to modernize deeply historic MT data formats to a common standard that is fully documented, platform-independent, extensible, and accessible to the broader community of geoscientists.
In the past decade, we have led just such an effort. This work has allowed us to create the first publicly accessible database of MT data, which has provided a convenient platform for archiving and sharing of MT and other electromagnetic transfer functions, EMTFs. The database has been online since 2011, but it has undergone a major update in early January 2018. This database is currently widely used by the international MT and space weather communities both for teaching and research. It is in active development as we continue to solicit and receive data contributions.
The purpose of this database is to support archiving and sharing of community magnetotelluric transfer functions, both in the United States, and internationally.
