Towards Operational Repeat-Pass SAR Interferometry at Active Volcanoes

@article{Stevens2004TowardsOR,
  title={Towards Operational Repeat-Pass SAR Interferometry at Active Volcanoes},
  author={Nicki F. Stevens and Geoff Wadge},
  journal={Natural Hazards},
  year={2004},
  volume={33},
  pages={47-76}
}
Measurement of volcanic surface movement is an operational technique at many volcano observatories to help understand internal processes and to aid in eruption forecasting. The potential of differential radar interferometry (DInSAR) to map patterns of surface deformation on volcanoes is well-proven. However, the technique has not yet become operational, partly because current spaceborne radars were not designed for the task. We discuss the limitations of the European Space Agency's ERS SARs for… Expand
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References

SHOWING 1-10 OF 44 REFERENCES
Synthetic aperture radar interferometry of Okmok volcano, Alaska: radar observations
ERS-1/ERS-2 synthetic aperture radar interferometry was used to study the 1997 eruption of Okmok volcano in Alaska. First, we derived an accurate digital elevation model (DEM) using a tandemExpand
Spaceborne radar measurements of the eruption of Soufrière Hills Volcano, Montserrat
Abstract Radar measurements from space are used to help monitor the evolution of a Peléean eruption on Soufrière Hills Volcano, Montserrat, during 1996 to April 1999. Data from four radar systems areExpand
Surface deformation and coherence measurements of Kilauea Volcano, Hawaii, from SIR C radar interferometry
The shuttle imaging radar C/X synthetic aperture radar (SIR-C/X-SAR) radar on board the space shuttle Endeavor imaged Kilauea Volcano, Hawaii, in April and October 1994 for the purpose of measuringExpand
Post-emplacement lava subsidence and the accuracy of ERS InSAR digital elevation models of volcanoes
Repeat-pass synthetic aperture radar interferometry (InSAR) using data acquired by the ERS platforms is an attractive method for acquiring topographic data of volcanoes. Caution is advised, however,Expand
Volcano geodesy: challenges and opportunities for the 21st century
  • D. Dzurisin
  • Geology
  • Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
  • 2000
Intrusions of magma beneath volcanoes deform the surrounding rock and, if the intrusion is large enough, the overlying ground surface. Numerical models generally agree that, for most eruptions,Expand
Surface movements of emplaced lava flows measured by synthetic aperture radar interferometry
Lava flows continue to move after they have been emplaced by flow mechanisms. This movement is largely vertical and can be detected using differential synthetic aperture radar (SAR) interferometry.Expand
Geodetic imaging: reservoir monitoring using satellite interferometry
SUMMARY Fluid fluxes within subsurface reservoirs give rise to surface displacements, particularly over periods of a year or more. Observations of such deformation provide a powerful tool for mappingExpand
Analysis of Active Lava Flows on Kilauea Volcano, Hawaii, Using SIR-C Radar Correlation Measurements
Precise eruption rates of active pahoehoe lava flows on Kilauea volcano, Hawaii, have been determined using spaceborne radar data acquired by the Space Shuttle Imaging Radar-C (SIR-C). A coastal siteExpand
SIR‐C/X‐SAR multifrequency multipass interferometry: A new tool for geological interpretation
Radar remote sensing is a tool of increasing importance in the study of volcanic sites. Synthetic aperture radar (SAR) is a high-resolution imaging tool used to survey areas which are not practicalExpand
A satellite geodetic survey of large-scale deformation of volcanic centres in the central Andes
TLDR
A satellite-based interferometric synthetic aperture radar survey of the remote central Andes volcanic arc reveals the background level of activity of about 900 volcanoes, 50 of which have been classified as potentially active, and finds four centres of broad, roughly axisymmetric surface deformation. Expand
...
1
2
3
4
5
...