MAGNETICS

We used two systems. For the first part of the first leg a GEM model GSM 19D `Overhauser effect' magnetometer was used. After this, a russian `Proton precession' magnetometer was used.

Thank to ING of Rome we have been provided the data of the Observatory of L'Aquila for the entire cruise period. The data are presented in Fig. 6.

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Figure 6: TIR99: magnetic observatories data (L'Aquila). Courtesy of ING of Rome (Dr. DeSantis)

Fig. 7 shows an example of unfiltered magnetic data corrected for IGRF95 and for Ground Observatory data.

Figure 7: TIR99: example of unfiltered magnetic data (GEM GSM 19D).