The motivation behind using remote sensing to estimate SWE is to provide a more complete, continuous set of " observations" to assist in water management operations, climate change studies, and flood hazard forecasting.
Previous research has presented theory for estimating snow properties, including potential for snow water equivalent (SWE) retrieval, using InSAR. Since the early 1990s, radar interferometry and interferometric synthetic aperture radar ( InSAR) have been used extensively to measure changes in the Earth's surface. We demonstrate this concept through a simulated example and practical case studies in the Netherlands.Įstimating snow water equivalent (SWE) using interferometric synthetic aperture radar ( InSAR) We propose a methodology based on collocated InSAR and Global Navigation Satellite System (GNSS) measurements, achieved by rigidly attaching phase-stable millimetre-precision compact active radar transponders to GNSS antennas. to compare InSAR results with those of other techniques. expressed in a well-defined terrestrial reference frame, e.g. However, some applications require `absolute' InSAR estimates, i.e. by assuming a reference point in the image to be stable. Mahapatra, Pooja der Marel, Hans van van Leijen, Freek Samiei-Esfahany, Sami Klees, Roland Hanssen, Ramonĭeformation estimates from Interferometric Synthetic Aperture Radar ( InSAR) are relative: they form a `free' network referred to an arbitrary datum, e.g. InSAR datum connection using GNSS-augmented radar transponders
0 kommentar(er)
