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Integrated studies of active volcanic systems for the purpose of long-term monitoring and forecast and short-term eruption prediction require large numbers of data-sets from various disciplines. A modern database concept has been developed for managing and analyzing multidisciplinary volcanological data-sets. The GEOWARN project (choosing the(More)
Sixteen soil and sedimentary geological reference materials were analysed for As and the heavy metals Cd, Co, Cr, Cu, Ni, Pb and Zn by inductively coupled plasma-atomic emission spectrometry (ICP-AES) and inductively coupled plasma-mass spectro-metry (ICP-MS) in combination with total and partial dissolution of the samples. It can be demonstrated that none(More)
Atlas information systems (AIS) present spatial information on predefined themes and localities in the form of maps and other representations, generally focusing on correct cartographic appearance and offering a certain degree of user interaction. This article introduces the concept of modular AIS, a concept that is essential for the development of an AIS(More)
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