Abstract: A method that exploits the temporal, spatial and spectral characteristics of interferometric signatures collected from coherent point scatterers appearing in stacked Synthetic Aperture Radar frames. These points are bootstrapped by iteratively re-apportioning atmospheric and topographic phase contributions and refining the satellite ephemeris and the point height. Model results specific to coherent point scatterers are then extrapolated to surrounding areas. Measurements of deformation rates in the sub mm/year range and height differentials in the sub meter range are possible. Geo-spatially located coherent point scatterers are maintained in a database for correlation with other geo-spatial information.

Abstract: A system for the rapid insertion and removal of a starting chain for the change of format or cross section of a continuous strand casting operation utilizing such starting chains, comprises an arcuate guide into which a portion of the chain can be drawn, a swingable ramp for lifting this portion of the chain into alignment with another arcuate guide at a device for separating the chain into segments or joining a segment of the chain to another portion thereof, and an automatic gripper, lifter and transport system for the chain segments. The latter mechanism is provided at the free end of the second arcuate guide.