EGU2020-22098
https://doi.org/10.5194/egusphere-egu2020-22098
EGU General Assembly 2020
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

The World Digital Magnetic Anomaly Map: version 2.1

Jerome Dyment1, Yujin Choi1, Vincent Lesur1, Andreina Garcia-Reyes1, Manuel Catalan2, Takemi Ishihara3, Tamara Litvinova4, and Mohamed Hamoudi5
Jerome Dyment et al.
  • 1Institut de physique du globe de Paris, Université de Paris, CNRS, Paris, France
  • 2Real Instituto y Observatorio de la Armada, San Fernando, Cadiz, Spain
  • 3Institute of Geology and Geoinformation, AIST, Tsukuba, Japan
  • 4A.P. Karpinsky Russian Geological Research Institute, VSEGEI, Saint Petersburg, Russia
  • 5Université des Sciences et Techniques Houari Boumediene, Algiers, Algeria

The World Digital Magnetic Anomaly Map (WDMAM) is an initiative of the IAGA (International Association of Geomagnetism and Aeronomy) supported by the CGMW (Commission for the Geological Map of the World) of UNESCO. The second version was released in 2015 (Dyment et al., 2015; Lesur et al., 2016), and mandate was given to the authors to update this version 2.0 using the same methodology as often as newly available data would make it necessary. Five better datasets justify the preparation and release of version 2.1: (1) the complete digital aeromagnetic map of Brasil made available to CGMW by Agência Nacional do Petróleo, Gás Natural e Biocombustíveis; (2) an improved version of the aeromagnetic map of Russia prepared at VSEGEI; (3) the second version of the Antarctic Digital Magnetic Anomaly maP (ADMAP; Golynsky et al., 2018) which construction results from a remarkable international effort during and after the Second International Polar Year; (4) a new map of the Caribbean plate and Gulf of Mexico resulting from the compilation and re-processing of existing marine and aeromagnetic data in the area (Garcia, 2018); and (5) a new compilation of marine magnetic data worldwide. The new map shows significant improvements over the previous versions and will be shortly available at wdmam.org.

How to cite: Dyment, J., Choi, Y., Lesur, V., Garcia-Reyes, A., Catalan, M., Ishihara, T., Litvinova, T., and Hamoudi, M.: The World Digital Magnetic Anomaly Map: version 2.1, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-22098, https://doi.org/10.5194/egusphere-egu2020-22098, 2020.

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