Central California Valley Interferometric Synthetic Aperture Radar (IFSAR) Collection

摘要

During the winter floods of 1996/97, a proposal was developed by the California Department of Conservation (CalDoc) to use the STAR-3i airborne X- band radar terrain mapping system, operated by Intermap, to acquire Interferometric Synthetic Aperture Radar (IFSAR) Digital Elevation Model (DEM) data. The proposal was funded by the Federal Emergency Management Agency (FEMA), with the U.S. Army Engineer Research and Development Center's (ERDC) Topographic Engineering Center (TEC) as the project manager. The CalDoc proposal included a flight plan to conduct an IFSAR data collection of the Sacramento and San Joaquin Valleys. The goal would be to develop a DEM of the major river channels an their levees, along with the adjacent flood-prone areas. This could be used for advanced planning and improved response in real time. The intent was that by using an IFSAR DEM along with Geographic Information Systems (GIS), one would be able to model the extent of flooding into adjacent areas if a levee were to be breached. Coverage of the flood data set extends from north of Sacramento, south to Fresno, following the Sacramento and San Joaquin Rivers. The project area covers approximately 8,596 square miles or 22,264 square kilometers.