A method is presented for calculating longitudinal glacier strain rates directly from the wrapped phase of an interferometric synthetic aperture radar (InSAR) interferogram assuming the ice flow path is known. This technique enables strain rates to be calculated for scenes lacking any velocity control points or areas within a scene where the phase is not continuously unwrappable from a velocity...

Interferometric synthetic aperture radar (InSAR) time series methods estimate the spatiotemporal evolution of surface deformation by incorporating information from multiple SAR interferograms. While various models have been developed to describe the interferometric phase and correlation statistics in individual interferograms, efforts to model the generalized covariance matrix that is directly ...

Mapping three-dimensional (3D) surface deformation caused by an earthquake is very important for the environmental, cultural, economic and social sustainability of human beings. Synthetic aperture radar (SAR) systems made it possible to measure precise 3D deformations by combining SAR interferometry (InSAR) and multiple aperture interferometry (MAI). In this paper, we retrieve the 3D surface de...

In this paper, a new function model for determining the minimum and maximum detectable deformation gradient in synthetic aperture radar interferometry (InSAR) with Envisat ASAR images is developed. The model incorporates the parameters of both interferometric coherence and multilook operator for 1, 5 and 20, rather than the interferometric coherence only in previous studies. Experimental result...

Interferometric synthetic aperture radar (InSAR) is a rapidly evolving technology for DTM generation. It exploits the coherent nature of SAR imaging to measure stereo parallaxes in the mm and cm regime from phase differences. InSAR systems are active microwave sensors; they operate independent of cloud cover and sun illumination. This paper reviews the basic principle and the properties of spac...

We combine conventional Interferometric Synthetic Aperture Radar (InSAR) and Multiple Aperture InSAR (MAI) to determine the ice surface velocity on the Langjokull and Hofsjokull ice caps in Iceland in 1994. This approach allows the 20 principal ice cap outlets to be fully resolved. We show that MAI leads to displacement estimates of finer resolution (15 versus 150 m) and superior precision (5 v...

To generate an accurate digital elevation model (DEM), Interferometric Synthetic Aperture Radar (InSAR) requires precise orbit data and baseline information, which are not always available. An alternative approach is to apply quality ground control points (GCPs) into the InSAR processing. However, locating high quality GCPs can also be difficult task, due to the low spatial resolution and radio...