Wenchuan earthquake ruptures located by offset-tracking procedure of ENVISAT ASAR amplitude images
نویسندگان
چکیده
منابع مشابه
Validation of Parametric Hurricane Models by ENVISAT ASAR Images
In the past decade several satellite borne synthetic aperture radars (SAR) have been put into orbit. A synthetic aperture radar (SAR) not only records the intensity of the returned signal, but also the phase history of the backscattered radar signal and is processed to high spatial resolution images. To observe the structure of tropical cyclones at the sea surface ENVISAT ASAR and RADASAT 1 Sca...
متن کاملForest and Non-forest Mapping with Envisat Asar Images
Envisat Advanced Synthetic Aperture Radar (ASAR) dual-polarization data are shown to be effective for regional forest monitoring. To this scope, an automatic SAR image preprocessing procedure was developed using SRTM DEM and Landsat TM image for geocoding in rugged terrain and smooth terrain areas, respectively. An object-oriented forest and non-forest classification method is then proposed bas...
متن کاملGeometric Performance of ENVISAT ASAR Products
We describe validation measurements of the geometric accuracy of ASAR images, measured redundantly via independent methods. Our tests include image (IM), alternating polarisation (AP), and wide swath (WS) mode acquisitions over a variety of test sites. ASAR's slant range products (IMS/APS) require a slightly different validation methodology than ground range precision (IMP, APP) and medium reso...
متن کاملEstimation of Bam Earthquake Coseismic Displacement Using Envisat Asar Interferometric Data
On the 26 December 2003 an earthquake, that measured 6.6 on the Richter scale, struck the town of Bam in Southern Iran. The European Space Agency (ESA) through its orbiting ENVISAT ASAR sensor managed to acquire 3 ascending and 3 descending image sets of the earthquake area, which were distributed, on request, free of charge to the research community world wide. A radar line-of-sight displaceme...
متن کاملPerformance of Envisat/ Asar Interferometric Products
ENVISAT/ ASAR interferometry is a useful tool for the retrieval of geoand bio-physical parameters. In this paper the aim is show the quality of interferometric ENVISAT/ ASAR products. This objective will be approached in two ways. First, the timing accuracy of various ENVISAT/ ASAR products is evaluated. The geometric calibration and validation includes the determination of slant-range and azim...
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ژورنال
عنوان ژورنال: Earthquake Science
سال: 2010
ISSN: 1674-4519,1867-8777
DOI: 10.1007/s11589-010-0724-8