The levee system in California’s Sacramento–San Joaquin Delta helps protect freshwater quality in a critical estuarine ecosystem that hosts substantial agricultural infrastructure and a large human population. We use space-based synthetic aperture radar interferometry (InSAR) to provide synoptic vertical land motion measurements of the Delta and levee system from 1995 to 2000. We find that Delt...

In this paper, we propose a model-based procedure to calibrate and validate Sentinel-1 orbit products by the Multi-Squint (MS) phase. The technique allows to calibrate an interferometric pair geometry by refining the slave orbit with reference to the orbit of a master image. Accordingly, we state the geometric model of the InSAR phase as function of positioning errors of targets and slave track...

SAR Interferometric (InSAR) techniques are widely applied for analyzing geophysical and tectonic deformations and for improving modeling techniques, with the benefits of surface deformation measurements covering areas from several to a hundred kilometers in size with a satisfactory accuracy (theoretically in the millimeter range). Nevertheless the accuracy and availability of deformation measur...

This paper presents an extraction method for large gradient three-dimensional (3-D) displacements of mining areas using single-track interferometric synthetic aperture radar (InSAR), Boltzmann function, and subsidence characteristics. is mainly aimed at overcoming the limitations surface deformation monitoring in by InSAR technology. One that rapid mine usually leads to image decoherence, which...

Tropospheric delays are still the main error source of satellite-based Interferometric Synthetic Aperture Radar (InSAR) mapping Earth’s surface movements. Recent studies have demonstrated potential global atmospheric models (GAMs) in reducing InSAR tropospheric delays. However, importance appropriate interpolation and weighting strategies GAM corrections has largely been overlooked. Here we pre...

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 Radars (InSAR) have been used to measure several geophysical quantities such as topography, glacier flows and deformations [1]. To estimate the surface topography, the phase difference between two or more complex SAR images acquired using two slightly different flight paths or two physically separated antennas is used. Then through geometrical equations relati...

The detection and monitoring of mass movement of susceptible slopes plays a key role in mitigating hazards and potential damage associated with creeping slopes and landslides. In this paper, we use observations from both Interferometric Synthetic Aperture Radar (InSAR) and Global Positioning System (GPS) to assess the slope stability of the Sarcheshmeh ancient landslide in the North Khorasan pr...

While there is abundant geomorphologic evidence for landslides in Iceland, it is in most cases unknown whether or not these landslides are actively creeping. Here we use Interferometric Synthetic Aperture Radar (InSAR) to assess its monitoring capabilities on three landslides that are known to be creeping and to survey large areas in East and Central-North Iceland in search for other creeping l...