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Surface wave tomography for the Barents Sea and surrounding regions

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Semiannual Technical Summary, Scientific Report, 2-2005, глава 6.3, NORSAR, Kjeller, Norway, (августа 2005)

Аннотация

Existing global and regional tomographic models have limited resolution in the European Arctic due to the small number of seismic stations, relatively low regional seismicity, and limited knowledge of the crustal structure. During the last decades, new seismic stations were permanently or temporarily installed in and around this region. However, many of the data from these stations are not easily accessible via the international data centers but only by direct request to the different data operators. Recently, a new crustal model of the Barents Sea and the surrounding areas had been derived in a joint project of the University of Oslo, NORSAR and the USGS (Bungum et al., 2004; 2005). This model, with its detailed information on crustal thickness and sedimentary basins in the area, is a valuable constraint for the tomographic inversion of the upper mantle velocity structure based on surface wave data.

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