A5004652766- Synthetic Aperture Radar (SAR) Applications and Techniques
- Cryospheric studies and observations
- Soil Moisture and Remote Sensing
- Landslides and related hazards
- earthquake and tectonic studies
- Geophysical Methods and Applications
- Advanced SAR Imaging Techniques
- Geophysics and Gravity Measurements
- Earthquake Detection and Analysis
- Structural Health Monitoring Techniques
- Seismology and Earthquake Studies
- Methane Hydrates and Related Phenomena
- Seismic Waves and Analysis
- Distributed and Parallel Computing Systems
- 3D Surveying and Cultural Heritage
- Geological Modeling and Analysis
- GNSS positioning and interference
- Optical measurement and interference techniques
- Planetary Science and Exploration
- Ocean Waves and Remote Sensing
- Time Series Analysis and Forecasting
- Spacecraft Design and Technology
- Rock Mechanics and Modeling
- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
Istituto per il Rilevamento Elettromagnetico dell'Ambiente
2016-2025
National Research Council
2013-2024
Consorzio Roma Ricerche
2023-2024
Weatherford College
2024
Istituto Nazionale di Geofisica e Vulcanologia
2024
University of Naples Federico II
2024
European Space Research Institute
2024
Parthenope University of Naples
2023
National Academies of Sciences, Engineering, and Medicine
2004-2012
Ambiente Italia (Italy)
2011
This paper presents a differential synthetic aperture radar (SAR) interferometry (DIFSAR) approach for investigating deformation phenomena on full-resolution DIFSAR interferograms. In particular, our algorithm extends the capability of small-baseline subset (SBAS) technique that relies interferograms only and is mainly focused large-scale deformations with spatial resolutions about 100/spl times/100 m. The proposed implemented by using two different sets data generated at low (multilook...
The aim of this paper is to design a novel parallel computing solution for the processing chain implementing Small BAseline Subset (SBAS) Differential SAR Interferometry (DInSAR) technique. proposed (P-SBAS) based on dual-level parallelization approach and encompasses combined strategies, which are fully discussed in paper. Moreover, main methodological aspects their implications also addressed. Finally, an experimental analysis, aimed at quantitatively evaluating computational efficiency...
We investigate a large geodetic data set of interferometric synthetic aperture radar (InSAR) and GPS measurements to determine the source parameters for three main shocks 2016 Central Italy earthquake sequence on 24 August 26 30 October (Mw 6.1, 5.9, 6.5, respectively). Our preferred model is consistent with activation four coseismic asperities belonging SW dipping normal fault system associated Mount Gorzano-Mount Vettore-Mount Bove alignment. Additional slip, equivalent Mw ~ 6.1–6.2...
We present an advanced differential synthetic aperture radar (SAR) interferometry (DInSAR) processing chain, based on the Parallel Small BAseline Subset (P-SBAS) technique, for efficient generation of deformation time series from Sentinel-1 (S-1) interferometric wide (IW) swath SAR data sets. first discuss effective solution high-quality interferograms, which properly accounts peculiarities terrain observation with progressive scans (TOPS) acquisition mode used to collect S-1 IW data. These...
Since early 2021, peculiar Volcano-Tectonic (VT) seismic sequences with very short inter-event times have become increasingly frequent and evident in the Campi Flegrei caldera (Italy), which has been experiencing a long-term unrest since 2005. During same period ground deformation (uplift), seismicity gas emission that characterize current showed an acceleration. Within this type of sequence, we identify burst-like swarms, characterized by so they are often not easily recognizable. Here show...
Accurate subpixel registration of synthetic aperture radar (SAR) images is an issue that again growing interest since its initial developments related to two-pass interferometry. Recent progress in coherent (multichannel) SAR processing raises the need for accurate data takes acquired with large baseline spans, high temporal coverage, and different frequency and/or operational modes. In this paper, we discuss a image-registration procedure, based on use external measures which allows...
We extensively exploit advanced Differential SAR Interferometry (DInSAR) techniques for enhanced landslide investigations. focus on the Ivancich area, Assisi, Central Italy, which is affected by a deep-seated investigated through in-situ surveys. For this large data sets of acquisitions were collected C-band ERS-1/2 and ENVISAT sensors (from April 1992 to November 2010), X-band radars COSMO-SkyMed (CSK) constellation December 2009 February 2012). concentrate DInSAR technique referred as...
Abstract We investigate the ground deformation and source geometry of 2016 Amatrice earthquake (Central Italy) by exploiting ALOS2 Sentinel‐1 coseismic differential interferometric synthetic aperture radar (DInSAR) measurements. They reveal two NNW‐SSE striking surface lobes, which could be effect distinct faults or rupture propagation a single fault. examine both cases through double dislocation planar source. Subsequently, we extend our analysis applying 3‐D finite elements approach...
The remote sensing technique known as Differential Synthetic Aperture Radar (SAR) Interferometry (DInSAR) allows the detection and monitoring of ground settlements, by generating deformation velocity maps displacement time-series having centimeter to millimeter accuracy. These measurements can contribute evaluation structural conditions constructions. Given different approaches exist for assessment damage, ranging from empirical estimates detailed finite element calculations. In this work,...
Abstract We investigate the 24–27 December 2018 eruption of Mount Etna occurred from fissures located on volcano eastern flank and accompanied by a seismic swarm, which was triggered magma intrusion continued for weeks after end eruption. Moreover, this swarm involved some shallow volcano‐tectonic structures flanks culminated 26 with strongest event (M L 4.8), along Fiandaca Fault. In work, we analyze seismological data Sentinel‐1 Differential Interferometric Synthetic Aperture Radar...
Abstract The causative source of the first damaging earthquake instrumentally recorded in Island Ischia, occurred on 21 August 2017, has been studied through a multiparametric geophysical approach. In order to investigate geometry and kinematics we exploit seismological, Global Positioning System, Sentinel‐1 COSMO‐SkyMed differential interferometric synthetic aperture radar coseismic measurements. Our results indicate that retrieved solutions from geodetic data modeling seismological are...
The rising availability of satellite-based multi-temporal interferometric datasets covering large areas the Earth surface constitutes a huge asset in context operational workflows aimed at improving land risk assessment and management. In order to cost-effectively handle amount data, we design semi-automatic procedure quickly identify, map inventory ground infrastructures displacements by means spatial clustering performed over very large-scale Differential Synthetic Aperture Radar...
We investigate the surface displacements in area affected by April 2009 L'Aquila earthquake (Central Italy) through an advanced DInSAR analysis. In particular, we apply SBAS approach to retrieve deformation maps and displacement time series from ENVISAT data acquired between February 2003 October COSMO‐SkyMed relevant six‐month interval following earthquake. Our analysis shows no evidence of pre‐seismic at 35‐day temporal sampling sensor. On other hand, benefiting high spatial resolution...
We investigate the capability improvement of advanced differential interferometric synthetic aperture radar (DInSAR) techniques to map deformation phenomena affecting urban areas by exploiting multitemporal SAR data acquired new X-band sensors with respect those previous C-band systems. In particular, we perform a comparative analysis time-series retrieved applying full-resolution Small BAseline Subset DInSAR technique selected sequences ENVISAT and RADARSAT-1 (both operating at C-band)...
This paper presents a web tool for the unsupervised retrieval of Earth’s surface deformation from Synthetic Aperture Radar (SAR) satellite data. The system is based on implementation Differential SAR Interferometry (DInSAR) algorithm referred to as Parallel Small BAseline Subset (P-SBAS) approach, within Grid Processing Demand (G-POD) environment that part ESA’s Geohazards Exploitation Platform (GEP). developed on-demand tool, which specifically addressed scientists are non-expert in DInSAR...
We extend the small baseline subset (SBAS) differential synthetic aperture radar (SAR) interferometry (DInSAR) approach to allow generation of deformation time-series by processing, at full spatial resolution scale, long sequences European Remote Sensing (ERS-1 and ERS-2) Environmental Satellite (ENVISAT) SAR data acquired with same illumination geometry. In particular, we avoid ERS/ENVISAT cross-interferograms, which are severely affected noise phenomena due carrier frequency separation two...
We present in this work a methodology for computing surface deformation time series and mean velocity maps of large areas. Our approach relies on the availability multi-temporal set synthetic aperture radar (SAR) data collected from ascending descending orbits over an area interest, also permits us to estimate vertical horizontal (East-West) components Earth's deformation. The adopted is based advanced cloud implementation differential SAR interferometry (DInSAR) Parallel Small Baseline...
We present in this work an advanced processing pipeline for continental scale differential synthetic aperture radar (DInSAR) deformation time series generation, which is based on the parallel small baseline subset (P-SBAS) approach and joint exploitation of Sentinel-1 (S-1) interferometric wide swath (IWS) SAR data, continuous global navigation satellite system (GNSS) position time-series, cloud computing (CC) resources. first briefly describe basic rationale adopted P-SBAS approach,...
Spaceborne Differential SAR Interferometry (DInSAR) is a widely exploited technique that allows measuring ground displacements with centimeter/millimeter accuracy at large spatial scale. The recent availability of worldwide DInSAR measurements, as well their standardization in terms format and access procedures, has further pushed this toward its application integration other data sources for carrying out multidisciplinary analysis natural anthropogenic surface deformation phenomena. In the...
Abstract Differential Interferometric Synthetic Aperture Radar (DInSAR) has been applied to detect and measure ground deformation in a stretch of the Ebro River valley (Spain) excavated salt‐bearing evaporites. The capability Small Baseline Subset (SBAS) DInSAR technique displacement is analyzed comparing results with available geomorphological information. map derived from 27 European Remote Sensing (ERS) satellite images covering more than five years provides sub‐centimeter measurements...
We have exploited the capability of differential synthetic aperture radar (SAR) interferometry (DInSAR) technique, referred to as Small BAseline Subset (SBAS) approach, analyse surface deformation at two distinct spatial scales: a low resolution, large scale, and fine local scale. At technique investigates DInSAR data with ground resolution order 100 m×100 m leads generate mean velocity maps associated time series for areas extending some thousands square kilometres. exploits SAR images full...