World Digital Magnetic Anomaly Map
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The World Digital Magnetic Anomaly Map (WDMAM) was first made available by the Commission for the Geological Map of the World in 2007. Compiled with data from governments and institutes,[1] the project was coordinated by the International Association of Geomagnetism and Aeronomy, and was presented by Mike Purucker of NASA and Colin Reeves of the Netherlands.[2] As of 2007, it was considered to be "the first truly global compilation of lithospheric magnetic field observations." and further improvements dated to 2009 relate to the full spectrum magnetic anomaly grid of the United States and also data of global marine magnetic anomaly.[3]
This article is missing information about WDMAM v2 of 2015; spherical harmonic fit. (January 2022) |
Some of the magnetic anomalies shown in the WDMAM generally relates to the altitude level of 5 kilometres (3.1 mi). Some of the significant features represented are of the Bangui Anomaly in the Central African Republic, the Chicxulub crater, the Thromsberg anomaly, the Richat Structure, the Atlantic ridge, the Bay of Biscay, the Sunda Arc and the Paris Basin.[4]