Table 4.

Average amplitudes (mm) of the residuals of the GPS vertical displacement minus predicted OTL, for harmonic M2, at the GPS sites situated on the Canary Islands. The Green's functions are based on earth model STW105 with anelastic dispersion after reducing the shear modulus, µ, by 16, 24 and 35 per cent (i.e. Q values lowered by 75, 50 and 35, respectively) in the upper mantle layer at 24.4–220 km depth (see Fig. 9).

Amplitude
(No reduction)(µ16)(µ24)(µ35)
Lanzarote1.290.850.700.49
Fuerteventura1.601.191.030.83
Gran Canaria0.290.310.490.82
Tenerife0.800.440.320.21
La Gomera0.900.530.370.19
La Palma0.810.490.420.37
El Hierro0.290.120.340.54
Canary Archipelago0.850.560.550.59
Amplitude
(No reduction)(µ16)(µ24)(µ35)
Lanzarote1.290.850.700.49
Fuerteventura1.601.191.030.83
Gran Canaria0.290.310.490.82
Tenerife0.800.440.320.21
La Gomera0.900.530.370.19
La Palma0.810.490.420.37
El Hierro0.290.120.340.54
Canary Archipelago0.850.560.550.59
Table 4.

Average amplitudes (mm) of the residuals of the GPS vertical displacement minus predicted OTL, for harmonic M2, at the GPS sites situated on the Canary Islands. The Green's functions are based on earth model STW105 with anelastic dispersion after reducing the shear modulus, µ, by 16, 24 and 35 per cent (i.e. Q values lowered by 75, 50 and 35, respectively) in the upper mantle layer at 24.4–220 km depth (see Fig. 9).

Amplitude
(No reduction)(µ16)(µ24)(µ35)
Lanzarote1.290.850.700.49
Fuerteventura1.601.191.030.83
Gran Canaria0.290.310.490.82
Tenerife0.800.440.320.21
La Gomera0.900.530.370.19
La Palma0.810.490.420.37
El Hierro0.290.120.340.54
Canary Archipelago0.850.560.550.59
Amplitude
(No reduction)(µ16)(µ24)(µ35)
Lanzarote1.290.850.700.49
Fuerteventura1.601.191.030.83
Gran Canaria0.290.310.490.82
Tenerife0.800.440.320.21
La Gomera0.900.530.370.19
La Palma0.810.490.420.37
El Hierro0.290.120.340.54
Canary Archipelago0.850.560.550.59
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