C-band Radarsat-1 InSAR image shows water-level changes over the swamp forest in southeastern Louisiana between May 22 and June 15, 2003. InSAR-derived water-level changes at the selected locations are compared with gauge readings.
The proposed NASA Deformation, Ecosystem Structure and Dynamics of Ice (DESDynI) mission would be a first-of-breed endeavor that would fundamentally change the paradigm by which Earth Science data systems at NASA are built. DESDynI is evaluating a distributed architecture where expert science nodes around the country all engage in some form of mission… (More)
(ICESat) laser altimetry profiles. We employ differential interfer-ograms from the ERS tandem mission SAR scenes acquired in the austral fall of 1996, and four selected ICESat laser altimetry profiles acquired in the austral fall of 2004, as ground control points (GCPs) to construct an improved geocentric 60-m resolution DEM over the grounded ice region. We… (More)
The Augustine Volcano is a conical-shaped, active stratovolcano located on an island of the same name in Cook Inlet, about 290 km southwest of Anchorage, Alaska. Augustine has experienced seven significant explosive To measure the ground surface deformation of the Augustine Volcano before the 2006 eruption, we applied satellite radar interferometry using… (More)
The following is an industry experience on using well established concepts, domain-specific language and code generation, to automate the engineering process of sub-system interactions. A domain-specific language was used to improve the communication efficiency among several teams of engineers. A code generator transforms the models formed for communicating… (More)
The 10-km-wide caldera of the historically active Aniakchak volcano, Alaska, subsides ϳ13 mm/yr, based on data from 19 European Remote Sensing Satellite (ERS-1 and ERS-2) interferometric synthetic aperture radar (InSAR) images from 1992 through 2002. The pattern of subsidence does not reflect the distribution of pyroclastic deposits from the last eruption… (More)