نتایج جستجو برای: dinsar technique
تعداد نتایج: 611683 فیلتر نتایج به سال:
Migration of subglacial water underneath thick Antarctic ice is difficult to observe directly but known influence flow dynamics. Here, we analyze a 6-year time series displacement maps from differential Sentinel-1 SAR interferometry (DInSAR) in the upstream region Jutulstraumen Glacier. Our results reveal short-term (between 12 days and 1 year) interconnected subsidence- uplift events surface, ...
The feasibility of measuring changes in surface soil moisture content with differential interferometric SAR (DInSAR) has received little attention in comparison to other active microwave techniques. In this study, multi-polarisation Cand L-band DInSAR is explored as a potential tool for the measurement of changes in surface soil moisture in agricultural areas. Using ten ascending Phased Array L...
We compare the results of two independent synthetic aperture radar differential interferometry (DInSAR) approaches to slope instability investigations in the Maratea valley (Southern Italy), based on different processing methods and software. The area selected for the comparison is well ground truthed and provides suitable examples of movements ranging from mm to cm per year. The DInSAR analyse...
We investigate the 19 September 2021 eruption of Cumbre Vieja volcano (La Palma, Canary Islands, Spain). In particular, we analyze Differential Interferometric Synthetic Aperture Radar (DInSAR) measurements obtained by processing Sentinel-1 images acquired from both ascending and descending orbits. First, show importance, for oceanic islands like La investigating DInSAR products retrieved time ...
Differential interferometric synthetic aperture radar (DInSAR) has been increasingly used to monitor ground surface deformations due to such occurrences as underground mining, fluid extraction, earthquake and volcanic activities. However, temporal decorrelation has made it difficult to derive useful information from a single pair of repeat-pass satellite radar images for vegetated regions when ...
Human activities for extracting natural resources, may lead to subsequent gradual or abrupt surface deformation, with adverse effects in the local ecosystem and damage to man-made structures. Over the past two decades, interferometric SAR (InSAR) has been demonstrated as the optimal remote sensing technique to estimate surface deformation with high spatial coverage and vertical accuracy over tr...
Most of the earth surface has been monitored systematically first by ERS-1, then by ERS-2 and it will be with the satellite ENVISAT, thus creating long and consistent series of data. In urban areas and where exposed rocks are visible, it is possible to identify numerous back scatterers that do not change their signature with time (the Permanent Scatterers) and therefore they can be used as natu...
The Essential Climate Variable (ECV) Permafrost is currently undergoing strong changes due to rising ground and air temperatures. Surface movement, forming characteristic landforms such as rock glaciers, one key indicator for mountain permafrost. Monitoring this movement can indicate ongoing in permafrost; therefore, glacier velocity (RGV) has recently been added an ECV product. Despite the inc...
Chile is one of the countries with highest seismicity in world and affected by three types seismogenic sources; interplate, intraplate superficial or cortical intraplate. In this context, eastern sector city Santiago, capital Chile, Falla San Ramón (FSR) located. It a source, which threatens its habitants various economic activities that are located sector, geological hazards such as earthquake...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید