Antarctic Digital Magnetic Anomaly Project by multi-national scientific communities                                                                Last updated: May. 18th. 2020


(Antarctic Digital Magnetic Anomaly Project)

The Antarctic is the most poorly understood region of the planet.  However, its geology maintains an important record of Gondwana and Rodinia evolution, and thus the Antarctic is the focus of extensive international scientific inquiry.  Geological studies of the Antarctic are greatly aided by magnetic anomaly data because of its ubiquitous cover of snow, ice, and sea water.  Accordingly, numerous terrestrial, marine, and airborne magnetic surveys have been carried out for site-specific geologic objectives by the international geoscience community.

As a result of the first ADMAP workshop at the British Antarctic Survey (Cambridge, UK) in 1995, it became clear that the individual near-surface surveys may be combined into a regional anomaly compilation to substantially enhance their utility for geological studies.  In addition, state-of-the-art satellite magnetic survey missions can help to fill-in the regional coverage gaps between the near-surface surveys, and also enhance the compilationís regional crustal magnetic anomaly attributes.  Accordingly, ADMAP was launched in 1995 to compile and integrate into a digital database all near-surface and satellite magnetic anomaly data collected in Antarctica and surrounding oceans south of 60oS.

This multinational project is encouraged by
Resolutions of the Scientific Committee on Antarctic Research (SCAR) and the International Association of Geomagnetism and Aeronomy (IAGA).  An international Working Group and its steering committee (Contact Information) implement ADMAPís objectives and protocols to collect, archive, and make available to the World Data Centers (e.g.,  NGDC ) magnetic anomaly data typically within a few or less years of the completion of surveying.  ADMAP also contributes to IAGAís  World Digital Magnetic Anomaly Map

The 2nd generation of ADMAP (a.k.a., ADAMP-2) including more than doubled line-km data, further constrain the crustal architecture and geological evolution of the Antarctic Peninsula and the West Antarctic Rift System in West Antarctica, as well as Dronning Maud Land, the Gamburtsev Subglacial Mountains, the Prince Charles Mountains, Princess Elizabeth Land, and Wilkes Land in East Antarctica and the circumjacent oceanic margins. Overall, the magnetic anomaly compilation helps unify disparate regional geologic and geophysical studies by providing new constraints on major tectonic and magmatic processes that affected the Antarctic from Precambrian to Cenozoic times.

ADMAP 1 (2001)
ADMAP 2 (2018)