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This paper presents advanced stacking techniques in high resolution SAR interferometry which focus on Distributed Scatterers (DSs). These recently developed algorithms are among the first to exploit meter-resolution spaceborne SAR data and have been applied on test cases which are challenging for conventional multitemporal techniques.
Contrary to the previous ESA SAR missions ERS and Envisat, where acquisition planning was mainly based on user requests and user priority (on top of a background mission), the Sentinel missions will be operated based on a predefined planning. The definition of the initial Sentinel-1 predefined observation scenarios needs to be in line with the overall Sentinels operations strategy, with the aim of...
Compact agricultural areas in Mexico have been identified, which are monitored as to their behavior concerning production and rural productivity in a network of Agrotech Observatories (AOTs). An AOT is a compact agricultural area representative of agro-ecological, technological and social conditions in the country. A multidisciplinary team of scientists and researchers analyze and define the best...
This study presents three complementary approaches to determine the volume of water in small lakes (<100ha) by combining satellite altimetry data and high-resolution (HR) images. The first two are empirical and use synchronous ground measurements of the water volume and the satellite data. The results demonstrate that altimetry and imagery can be effectively and accurately used to monitor the temporal...
The development of microwave remote sensing models for the monitoring of vegetation has received wide attention in recent years. For vegetation in the tropics, it is necessary to consider a dense medium model for the theoretical modelling of the microwave interaction with the vegetation medium. In this paper, a multilayer model based on the radiative transfer theory for a dense vegetation medium is...
This paper presents a use case of the Persistent Scatterer Interferometry (PSI) technique apply to Civil Engineering to monitor the dikes settlement on the Port of Barcelona. A geostatistical analysis of the two available datasets of PSI data have been made on a Geographic Information System to obtain a continuous deformation surface. This approach allows us to study the different subsidence velocities...
Due to the completion of the Three Gorges Dam and the limited geological environmental capacity, geological hazards occur frequently in the Three Gorges Reservoir region. Therefore, evaluating the stability of the riverbed and finding potential geological hazards become very meaningful. In this paper, Interferometrie SAR technology was used to monitor the ground deformation over selected areas, and...
This work focuses on monitoring the ground motion and infrastructure stability in an urban environment, namely in the city of Bucharest. Bucharest is a fast developing city with the average construction rate of 8–20% new buildings with respect to the existing ones. Consequently, the civil engineering industry faced new challenges related to the need of having taller buildings with deeper underground...
In order to monitor the ground deformation due to coal mining, a new time-series InSAR technique combining PSs and DSs is presented in this paper. Firstly DSs are efficiently identified using classified information and statistical characteristics. Then a two-scale network is introduced into traditional PSI to deal with PSs and DSs. The proposed method is performed to investigate the subsidence of...
Persistent Scatterer InSAR (PS-InSAR) technique provides ground deformation monitoring in an accuracy of millimeter, due to its capability of overcoming the atmospheric disturbance, geometrical and temporal decorrelation. The Phased Array L-band Synthetic Aperture Radar (PALSAR) of ALOS (Advanced Land Observation Satellite) provides better capability to penetrate vegetation, which is especially useful...
The research objectives of the Aquistore CO2 storage project are to design, adapt, and test non-seismic monitoring methods for measurement, and verification of CO2 storage, and to integrate data to determine subsurface fluid distributions, pressure changes and associated surface deformation. The test area is located west of the Boundary Dam Power Station in southeastern Saskatchewan, Canada. The targeted...
This paper describes some of the key features of the Persistent Scatterer Interferometry chain of the Geomatics (PSIG) Division of CTTC. The paper firstly provides an overview of the entire PSI chain. It then focuses on the first part of the chain, which provides the input data for the estimation of the Atmospheric Phase Screen (APS). In this part, the so-called Cousin Persistent Scatterers (CPSs)...
This paper presents three applications of SAR interferometry. In the first study, DInSAR technique applied to TerraSAR-X images acquired in Nunavik, northern Canada, showed that surface subsidence observed in the permafrost thaw period is more important in loose soil areas while no surface movement were detected in rock outcrop areas. In the second one, electricity transmission tower movement was...
Synthetic Aperture Radar images is a proven technology that can be used to detect ships at sea which have no active transponders (commonly referred to as dark targets). Various methods have been proposed that process SAR images to monitor these targets. In this paper, we propose a novel ship detection method for Advanced Synthetic Aperture Radar imagery that combines a Constant False Alarm Rate ship...
Coal-bed methane (CBM), as an increasingly promising resource for the energy supply, deserves further exploration and accurate reservoir evaluation. It is also required to dynamically monitor the reservoirs (>200 m). Remote sensing methods in regular wavebands may fail in the depth sounding, with only imaging geo-objects shallower than 100 m. In contrast, the Super-Low Frequency (SLF) remote sensing...
This paper shows the development status of a new small airborne SAR based on Pi-SAR2. We had designed its advanced small type high resolution full polarimetric airborne SAR with the real-time processor. Its flight test will be planned in this fiscal year.
In order to trace and identify the achievements of forest resources protection and development in China, the system of forest resources monitoring was built up to annually collect the forest information base on high-resolution data. The measurement analysis of forest resource was done in the 41 key counties. High-resolution SPOT5 images, RapidEye and other high-resolution remote sensing data had been...
Agriculture in both industrialized and developing countries is a unique sector, characterized by complex issues and problems, ranging from macro (economic) policy levels all the way to the micro (smallholder) farming household and field plot levels. Agriculture, being predominantly a (small-scale) family and/or communal enterprise differs in fundamental ways from administrative services and industrial...
The COSMO-SkyMed® X-band SAR satellites constellation, due to its capability to acquire dense temporal data series at very high to high ground resolution and in co and cross-polarizations, is a promising system for crops monitoring and management. Its use, in combination with other SAR and optical systems in a virtual constellation, can result in a very effective tool for agricultural practice monitoring,...
Forest fire is one of the dominant disturbance regimes, especially in boreal forests. Identifying post-fire forest dynamics is crucial to both ecological research and forest monitoring and management. In this study, taking the most serious forest fire in the history of P. R. China as an example, we proposed to monitor the temporal and spatial characteristics of post-fire forest dynamics using MODIS...
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