DOI: 10.1016/j.jag.2016.06.015
Scopus记录号: 2-s2.0-84997771454
论文题名: Mexico City land subsidence in 2014–2015 with Sentinel-1 IW TOPS: Results using the Intermittent SBAS (ISBAS) technique
作者: Sowter A ; , Bin Che Amat M ; , Cigna F ; , Marsh S ; , Athab A ; , Alshammari L
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2016
卷: 52 起始页码: 230
结束页码: 242
语种: 英语
英文关键词: InSAR
; Land subsidence
; SAR
; Sentinel-1
; TOPS
Scopus关键词: satellite imagery
; Sentinel
; subsidence
; synthetic aperture radar
; time series analysis
; Federal District [Mexico]
; Mexico City
; Mexico [North America]
英文摘要: Differential Interferometric Synthetic Aperture Radar (DInSAR) can be considered as an efficient and cost effective technique for monitoring land subsidence due to its large spatial coverage and high accuracy provided. The recent commissioning of the first Sentinel-1 satellite offers improved support to operational surveys using DInSAR due to regular observations from a wide-area product. In this paper we show the results of an intermittent small-baseline subset (ISBAS) time-series analysis of 18 Interferometric Wide swath (IW) products of a 39,000 km2 area of Mexico acquired between 3 October 2014 and 7 May 2015 using the Terrain Observation with Progressive Scans in azimuth (TOPS) imaging mode. The ISBAS processing was based upon the analysis of 143 small-baseline differential interferograms. After the debursting, merging and deramping steps necessary to process Sentinel-1 IW products, the method followed a standard approach to the DInSAR analysis. The Sentinel-1 ISBAS results confirm the magnitude and extent of the deformation that was observed in Mexico City, Chalco, Ciudad Nezahualcóyotl and Iztapalapa by other C-band and L-band DInSAR studies during the 1990s and 2000s. Subsidence velocities from the Sentinel-1 analysis are, in places, in excess of −24 cm/year along the satellite line-of-sight, equivalent to over ∼40 cm/year vertical rates. This paper demonstrates the potential of Sentinel-1 IW TOPS imagery to support wide-area DInSAR surveys over what is a very large and diverse area in terms of land cover and topography. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80015
Appears in Collections: 气候变化事实与影响
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作者单位: Nottingham Geospatial Institute, University of NottinghamNottingham, United Kingdom; British Geological Survey, Nicker Hill, KeyworthNottingham, United Kingdom
Recommended Citation:
Sowter A,, Bin Che Amat M,, Cigna F,et al. Mexico City land subsidence in 2014–2015 with Sentinel-1 IW TOPS: Results using the Intermittent SBAS (ISBAS) technique[J]. International Journal of Applied Earth Observation and Geoinformation,2016-01-01,52