DOI: 10.1002/2015GL065031
论文题名: A persistent scatterer interpolation for retrieving accurate ground deformation over InSAR-decorrelated agricultural fields
作者: Chen J. ; Zebker H.A. ; Knight R.
刊名: Geophysical Research Letters
ISSN: 0094-8505
EISSN: 1944-8236
出版年: 2015
卷: 42, 期: 21 起始页码: 9294
结束页码: 9301
语种: 英语
英文关键词: decorrelation
; groundwater
; InSAR deformation map
; persistent scatterers
Scopus关键词: Agriculture
; Algorithms
; Deformation
; Groundwater
; Interferometry
; Interpolation
; Radar
; Radar measurement
; Remote sensing
; Surface scattering
; Vegetation
; De correlations
; Deformation map
; Deformation measurements
; Ground deformations
; Interferometric synthetic aperture radars
; Persistent scatterers
; Radar remote sensing
; Scattering property
; Synthetic aperture radar
; accuracy assessment
; agricultural land
; algorithm
; ALOS
; deformation mechanism
; groundwater abstraction
; interpolation
; irrigation system
; persistence
; pixel
; pumping
; radar interferometry
; scattering
; signal processing
; spatial resolution
; synthetic aperture radar
; vegetation cover
; California
; Colorado
; San Luis Valley
; Tulare Basin
; United States
英文摘要: Interferometric synthetic aperture radar (InSAR) is a radar remote sensing technique for measuring surface deformation to millimeter-level accuracy at meter-scale resolution. Obtaining accurate deformation measurements in agricultural regions is difficult because the signal is often decorrelated due to vegetation growth. We present here a new algorithm for retrieving InSAR deformation measurements over areas with severe vegetation decorrelation using adaptive phase interpolation between persistent scatterer (PS) pixels, those points at which surface scattering properties do not change much over time and thus decorrelation artifacts are minimal. We apply this algorithm to L-band ALOS interferograms acquired over the San Luis Valley, Colorado, and the Tulare Basin, California. In both areas, the pumping of groundwater for irrigation results in deformation of the land that can be detected using InSAR. We show that the PS-based algorithm can significantly reduce the artifacts due to vegetation decorrelation while preserving the deformation signature. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955207032&doi=10.1002%2f2015GL065031&partnerID=40&md5=c161af3e21cf7c03f05c82f680c80dd4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8121
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geophysics, Stanford University, Stanford, CA, United States
Recommended Citation:
Chen J.,Zebker H.A.,Knight R.. A persistent scatterer interpolation for retrieving accurate ground deformation over InSAR-decorrelated agricultural fields[J]. Geophysical Research Letters,2015-01-01,42(21).