Notes

1. Interferometric Synthetic Aperture Radar (InSAR) is a satellite-based instrument that allows very precise observations of changes in the height of the surface and its character (see http://quake.usgs.gov/research/deformation/modeling/InSAR/whatisInSAR. html).

2. MoDIS (or Moderate Resolution Imaging Spectroradiometer) is a satellite-based instrument that provides data in 36 wavelength bands. These data can be used to improve understanding of the surface changes and characteristics of land and ocean sites (see http://modis.gsfc.nasa.gov/about/).

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