So this is what I am spending this summer doing:
Title: Geodetic Measurements and Numerical Models of Rifting in Northern Iceland
The objective of this study is to describe quantitatively deformation in the Northern Volcanic Zone (NVZ) of Iceland. The observations were made using interferometric analysis of synthetic aperture radar images (InSAR) between 1993 and 2000. They can be modeled as three sources of deformation in this region: a shallow deflating (Mogi) source, a deep inflating (Mogi) source, and an opening dike trending north south. The modeling assumes an elastic half-space and builds on a previous study using a superset of the InSAR data (De Zeeuw-Van Dalfsen et al., Geophys. Res. Lett., 2004). An innovative new technique to model phase without unwrapping parameters directly (Feigl and Thurber, Geophys. J. Int., 2008) is applied to estimate the model. The parameters of interest include the three-dimensional position and volume change of each source. We test the hypothesis of secular deformation at a constant rate of volume change. If validated, this hypothesis would imply that the post-rifting deformation following the 1975-1980 Kralfa eruption has dissipated on a time scale on the order of 20 years.
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