DOI: 10.1016/j.jag.2017.06.011
Scopus记录号: 2-s2.0-85032483090
论文题名: InSAR to support sustainable urbanization over compacting aquifers: The case of Toluca Valley, Mexico
作者: Castellazzi P ; , Garfias J ; , Martel R ; , Brouard C ; , Rivera A
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 63 起始页码: 33
结束页码: 44
语种: 英语
英文关键词: Ground fracturing
; Groundwater depletion
; InSAR
; Mexico
; Subsidence
; Urban development
Scopus关键词: aquifer
; compaction
; interferometry
; resource depletion
; Sentinel
; sustainability
; synthetic aperture radar
; urbanization
; Mexico [Mexico (NTN)]
; Mexico [North America]
; Toluca Valley
; Toluca
英文摘要: This paper illustrates how InSAR alone can be used to delineate potential ground fractures related to aquifer system compaction. An InSAR-derived ground fracturing map of the Toluca Valley, Mexico, is produced and validated through a field campaign. The results are of great interest to support sustainable urbanization and show that InSAR processing of open-access Synthetic Aperture Radar (SAR) data from the Sentinel-1 satellites can lead to reliable and cost-effective products directly usable by cities to help decision-making. The Toluca Valley Aquifer (TVA) sustains the water needs of two million inhabitants living within the valley, a growing industry, an intensively irrigated agricultural area, and 38% of the water needs of the megalopolis of Mexico City, located 40 km east of the valley. Ensuring water sustainability, infrastructure integrity, along with supporting the important economic and demographic growth of the region, is a major challenge for water managers and urban developers. This paper presents a long-term analysis of ground fracturing by interpreting 13 years of InSAR-derived ground displacement measurements. Small Baseline Subset (SBAS) and Persistent Scatterer Interferometry (PSI) techniques are applied over three SAR datasets totalling 93 acquisitions from Envisat, Radarsat-2, and Sentinel-1A satellites and covering the period from 2003 to 2016. From 2003 to 2016, groundwater level declines of up to 1.6 m/yr, land subsidence up to 77 mm/yr, and major infrastructure damages are observed. Groundwater level data show highly variable seasonal responses according to their connectivity to recharge areas. However, the trend of groundwater levels consistently range from −0.5 to −1.5 m/yr regardless of the well location and depth. By analysing the horizontal gradients of vertical land subsidence, we provide a potential ground fracture map to assist in future urban development planning in the Toluca Valley. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79998
Appears in Collections: 气候变化事实与影响
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作者单位: Institut national de la recherche scientifique, Centre Eau, Terre et Environnement, Université du Québec, 490 rue de la Couronne, Québec, QC, Canada; Universidad Autónoma del Estado de México, CIRA, Carretera Toluca-Atlacomulco, Ciudad Universitaria, km 14.5, Toluca, Estado de México, Mexico; Geological Survey of Canada, Natural Resources Canada, 490 rue de la Couronne, Quebec, Quebec, Canada
Recommended Citation:
Castellazzi P,, Garfias J,, Martel R,et al. InSAR to support sustainable urbanization over compacting aquifers: The case of Toluca Valley, Mexico[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,63