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| - | **Figure 3.** An example interferogram from StaMPS processing, spanning nearly one year from September 1997 to August 1998.\\ A clear relationship between phase or range change and elevation can be seen in this interferogram indicating contribution from the atmosphere. Velocities are in the Line Of Sight with red (positive) moving towards the satellite and blue (negative) moving away from the satellite. | + | **Figure 3.** An example interferogram from StaMPS processing, spanning nearly one year from September 1997 to August 1998.\\ A clear relationship between phase or range change and elevation can be seen in this interferogram indicating contribution from\\ the atmosphere. Displacements are in the Line Of Sight with red (positive) moving towards the satellite and blue (negative) moving\\ away from the satellite. |
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| + | **Figure 4.** Final StaMPS result showing average velocities over the time period of 1996-2002. Apparent uplift signal just\\ west of the crater is likely an artifact of the atmosphere removal process. Velocities are in the Line Of Sight with red \\ (positive) moving towards the satellite and blue (negative) moving away from the satellite. | ||
| However, there is still much uncertainty about what physical features on the edifice the persistent scatterers correspond to. While it may appear that there is a distinct signal of uplift just off-center of the volcano, there is good reason to believe that the presented results are heavily influenced by atmospheric effects. In several of the interferograms created through StaMPS processing, a strong correlation between phase and elevation was present (Figure ##), indicating influence from atmospheric changes. | However, there is still much uncertainty about what physical features on the edifice the persistent scatterers correspond to. While it may appear that there is a distinct signal of uplift just off-center of the volcano, there is good reason to believe that the presented results are heavily influenced by atmospheric effects. In several of the interferograms created through StaMPS processing, a strong correlation between phase and elevation was present (Figure ##), indicating influence from atmospheric changes. | ||
