نتایج جستجو برای: dinsar technique
تعداد نتایج: 611683 فیلتر نتایج به سال:
In the last fifteen years the differential interferometric SAR, Synthetic Aperture Radar, (DInSAR) techniques have demonstrated their potential as land deformation measurement tools. In the last few years their capability has been considerably improved by using large stacks of SAR images acquired over the same area, instead of the classical two images used in the standard configurations. With t...
Long-term and high temporal resolution gravity and deformation data move us toward a better understanding of the behavior of Mt Etna during the June 1995 - December 2011 period in which the volcano exhibited magma charging phases, flank eruptions and summit crater activity. Monthly repeated gravity measurements were coupled with deformation time series using the Differential Synthetic Aperture ...
The town of LaUnion (SE, Spain) is located within a metal mining area that has been exploited since the Roman period. This historic exploitation has left behind a high concentration of abandoned underground mining galleries. Currently, an industrial area is subsiding due to the collapse of one of these galleries in May 1998. In this paper, an advanced Differential Interferometry SAR (DInSAR) me...
Subject of this paper is the comparison of the results obtained exploiting the Permanent Scatterers (PS) Technique on ERS DInSAR data with displacement measurements carried out by means of optical leveling and GPS.
This paper describes the results using data from ALOS and ENVISAT satellites for the purpose of subsidence monitoring over underground coal mine sites in the state of New South Wales, Australia, using the differential interferometric synthetic aperture radar (DInSAR) technique. The quality of the mine subsidence monitoring results is mainly constrained by the noise due to the spatial and tempor...
Ground subsidence due to underground coal mining threatens the safety of surface infrastructure such as buildings, roads, bridges, powerlines and telecommunication cables, and can cause environmental problems such as water pollution, cessation of stream flow, and so on. Monitoring the spatial distribution of surface deformation may be helpful for land-use planning, land reclamation, safety and ...
Abstract. The Advanced Differential Interferometric SAR (A-DInSAR) technique is a class of powerful techniques to monitor ground motion. In the last two decades, A-DInSAR has undergone an important development in terms processing algorithms and capability wide areas. This been accompanied by increase Synthetic Aperture Radar (SAR) data acquisition spaceborne sensors. An step forward was launch ...
This research used both ERS and JERS-1 images to investigate the feasibility of differential radar interferometry (DInSAR) for mine subsidence monitoring in the state of New South Wales, Australia. DInSAR results are analysed and validated with the aid of Geographic Information System (GIS) tools. The drawbacks of using interferometric measurements for mine subsidence monitoring are discussed. ...
This paper reports the progress of the Envisat CAL/VAL Project No 1078. Subsidence in an underground coal mining region southwest of Sydney, Australia, has been monitored using ERS and JERS-1. Seven Envisat images have been acquired in various imaging modes from both ascending and descending passes over the same mining region. More Envisat images have been scheduled and will be acquired in the ...
This paper is focused on spaceborne Differential Interferometric SAR (DInSAR) for land deformation measurement and monitoring. In the last two decades several DInSAR data analysis procedures have been proposed. The objective of this paper is to describe the DInSAR data processing and analysis tools developed at the Institute of Geomatics in almost ten years of research activities. Four main DIn...
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