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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
EMAG2: A 2-arc min resolution Earth Magnetic Anomaly Grid compiled from satellite, airborne, and marine magnetic measurements
Geochemistry, Geophysics, Geosystems, Volume 10, No. 8, Article Q08005, Year 2009
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Description
A global Earth Magnetic Anomaly Grid (EMAG2) has been compiled from satellite, ship, and airborne magnetic measurements. EMAG2 is a significant update of our previous candidate grid for the World Digital Magnetic Anomaly Map. The resolution has been improved from 3 arc min to 2 arc min, and the altitude has been reduced from 5 km to 4 km above the geoid. Additional grid and track line data have been included, both over land and the oceans. Wherever available, the original shipborne and airborne data were used instead of precompiled oceanic magnetic grids. Interpolation between sparse track lines in the oceans was improved by directional gridding and extrapolation, based on an oceanic crustal age model. The longest wavelengths (>330 km) were replaced with the latest CHAMP satellite magnetic field model MF6. EMAG2 is available at http://geomag.org/models/EMAG2 and for permanent archive at http://earthref.org/ cgi-bin/er.cgi?s=erda.cgi?n=970. © 2009 by the American Geophysical Union.
Authors & Co-Authors
Maus, Stefan
United States, Boulder
University of Colorado Boulder
United States, Boulder
National Geophysical Data Center
Barckhausen, Udo
Germany, Hannover
Bundesanstalt Für Geowissenschaften Und Rohstoffe
Berkenbosch, Heidi A.
New Zealand, Lower Hutt
Gns Science
Bournas, Nasreddine
Canada, Aurora
Geotech Ltd.
Brozena, John M.
United States, Washington, D.c.
U.s. Naval Research Laboratory
Childers, Vicki A.
United States, Washington, D.c.
National Oceanic and Atmospheric Administration
Dostaler, F.
Canada, Ottawa
Geological Survey of Canada
Fairhead, James Derek
United Kingdom, Leeds
Getech Group
United Kingdom, Leeds
University of Leeds
Finn, Carol A.
United States, Denver
United States Geological Survey Central Region
von Frese, Ralph R.B.
United States, Columbus
The Ohio State University
Gaina, Carmen
Norway, Trondheim
Geological Survey of Norway
Golynsky, S.
Russian Federation, Saint Petersburg (ex Leningrad)
All-russian Research Institute for Geology and Mineral Resources of the World Ocean
Kucks, Robert P.
United States, Denver
United States Geological Survey Central Region
Lühr, Hermann
Germany, Potsdam
Deutsches Geoforschungszentrum Gfz
Milligan, Peter R.
Australia, Symonston
Geoscience Australia
Mogren, Saad M.
Saudi Arabia, Riyadh
College of Sciences
Dietmar Müller, R. Dietmar
Australia, Sydney
The University of Sydney
Olesen, Odleiv
Norway, Trondheim
Geological Survey of Norway
Pilkington, Mark P.
Canada, Ottawa
Geological Survey of Canada
Saltus, Richard W.
United States, Denver
United States Geological Survey Central Region
Schreckenberger, Bernd
Germany, Hannover
Bundesanstalt Für Geowissenschaften Und Rohstoffe
Thébault, Erwan
France, Paris
Institut de Physique du Globe de Paris
Caratori Tontini, F.
Italy, Rome
Istituto Nazionale Di Geofisica e Vulcanologia, Rome
Statistics
Citations: 473
Authors: 23
Affiliations: 20
Identifiers
Doi:
10.1029/2009GC002471
ISSN:
15252027
e-ISSN:
15252027