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Persistent scatter radar interferome...

Hooper, Andrew John.

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Persistent scatter radar interferometry for crustal deformation studies and modeling of volcanic deformation.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Persistent scatter radar interferometry for crustal deformation studies and modeling of volcanic deformation./
作者:	Hooper, Andrew John.
面頁冊數:	124 p.
附註:	Adviser: Paul Segall.
Contained By:	Dissertation Abstracts International67-05B.
標題:	Engineering, Electronics and Electrical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3219289
ISBN:	9780542706905

Persistent scatter radar interferometry for crustal deformation studies and modeling of volcanic deformation.
Hooper, Andrew John.

Persistent scatter radar interferometry for crustal deformation studies and modeling of volcanic deformation. - 124 p.

Adviser: Paul Segall.

Thesis (Ph.D.)--Stanford University, 2006.

Finally, we analyze geodetic data spanning the 1989 Kilauea south flank earthquake, Hawaii, and find that the depth of the inferred fault plane is consistent with the hypocentral depth, which was previously not clear.

ISBN: 9780542706905Subjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Persistent scatter radar interferometry for crustal deformation studies and modeling of volcanic deformation.
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245 1 0 $a Persistent scatter radar interferometry for crustal deformation studies and modeling of volcanic deformation.
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502 $a Thesis (Ph.D.)--Stanford University, 2006.
520 $a Finally, we analyze geodetic data spanning the 1989 Kilauea south flank earthquake, Hawaii, and find that the depth of the inferred fault plane is consistent with the hypocentral depth, which was previously not clear.
520 $a While conventional interferometric synthetic aperture radar (InSAR) is a very effective technique for measuring crustal deformation, almost any interferogram includes large areas where the signals decorrelate and no measurement is possible. Consequently, most InSAR studies to date have focused on areas that are dry and sparsely vegetated. A relatively new analysis technique, permanent scatterer InSAR, overcomes the decorrelation problem by identifying resolution elements whose echo is dominated by a single scatterer in a series of interferograms. This technique has been useful for analysis of urban areas, where angular structures produce efficient reflectors that dominate background scattering. However, man-made structures are absent from most of the Earth's surface. Furthermore, this technique requires, a priori, an approximate temporal model for the deformation, whereas characterizing the temporal pattern of deformation is commonly one of the aims of any study.
520 $a We have developed a new method of analysis, StaMPS, using spatial correlation of interferogram phase to find a network of stable pixels in all terrains, with or without buildings. Prior knowledge of temporal variations in the deformation rate is not required. We refer to these pixels as persistent scatterers (PS). A key component of our method is the development of two algorithms to unwrap a three-dimensional series of interferograms. We observe temporally-variable deformation, using an initial version of StaMPS, in data acquired over Long Valley caldera in California, for a period when deformation rates varied significantly. The inferred displacements of the PS compare well with ground truth. Using an enhanced version of StaMPS, we detect a period of steady deflation within the Volcan Alcedo caldera in the Galapagos Islands between 1997 and 2001, which we model with a contracting ellipsoidal magma body. Conventional InSAR has been limited here until now by high rates of temporal decorrelation over much of the volcano. We also detect motion along the inner slopes of the caldera which we interpret as landsliding.
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