Maglodan project: The first step in merging the national geomagnetic maps of Romania, Ukraine and the Republic of Moldova

Abstract

This paper deals with the compilation of large-scale composite geomagnetic maps. A joint venture between the Geological Institute of Romania and the Institute of Geophysics of the National Academy of Sciences of Ukraine started in 1998 in order to join the national geomagnetic maps of Romania and Ukraine (UKROMM project). Later on, the Institute of Geophysics and Geology of the Moldavian Academy of Sciences joined the project by providing data for the Moldavian territory. As a first step in merging the national geomagnetic maps, some pilot-maps have been constructed for a small area, in the Low Danube region. This area encompasses parts of the territories of the three co-operative countries (MAGLODAN sub-project). Secular variation distortions have been reduced and data were brought to a common datum by employing a common geomagnetic reference network. Based on the consistent geomagnetic data set some geomagnetic images for the Low Danube area are finally presented.