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Surface deformation analysis of the Mauna Loa and Kīlauea volcanoes, Hawai‘i, based on InSAR displacement time series

January 6, 2009

We investigate the deformation of Mauna Loa and Kilauea volcanoes, Hawai`i, by exploiting the advanced differential Synthetic Aperture Radar Interferometry (InSAR) technique referred to as the Small BAseline Subset (SBAS) algorithm. In particular, we present time series of line-of-sight (LOS) displacements derived from SAR data acquired by the ASAR instrument, on board the ENVISAT satellite, from the ascending (track 93) and descending (track 429) orbits between 2003 and 2008. For each coherent pixel of the radar images we compute time-dependent surface displacements as well as the average LOS deformation rate. Our results quantify, in space and time, the complex deformation of Mauna Loa and Kilauea volcanoes. The derived InSAR measurements are compared to continuous GPS data to asses the quality of the SBAS-InSAR products.

Publication Year 2009
Title Surface deformation analysis of the Mauna Loa and Kīlauea volcanoes, Hawai‘i, based on InSAR displacement time series
DOI 10.1109/USEREST.2008.4740368
Authors F. Casu, G. Solaro, Pietro Tizzani, Michael P. Poland, Asta Miklius, Eugenio Sansosti, Riccardo Lanari
Publication Type Conference Paper
Publication Subtype Conference Paper
Index ID 70198268
Record Source USGS Publications Warehouse
USGS Organization Hawaiian Volcano Observatory; Volcano Science Center