Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084418 |
A New Method for Isolating Elastic From Inelastic Deformation in Aquifer Systems: Application to the San Joaquin Valley, CA | |
Chaussard, Estelle1; Farr, Tom G.2 | |
2019-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA |
英文摘要 | Separating recoverable (elastic) from permanent (inelastic) deformation of aquifer systems is critical to develop sustainable pumping practices but remains a challenge because the preconsolidation stress is unknown. Previous works often assume that inelastic deformation occurs over years while elastic deformation is seasonal. This assumption may not hold for systems where groundwater extraction controls drawdowns and recharge because elastic deformation may not be exclusively seasonal (e.g., drought and recovery periods). Here we present an independent component analysis-based method for extracting elastic aquifer properties without relying on sedimentary data or on curve fitting of seasonal signal. We applied this method to 2015-2019 Interferometric Synthetic Aperture Radar measurements of deformation in the San Joaquin Valley and show that elastic deformation is always present and captured by IC2 with both seasonal patterns and post drought recovery longer-term deformation. Independent component analysis is the first method which enables isolating elastic deformation and properties even through periods that do not exhibit a clear seasonal signal. |
英文关键词 | elastic deformation aquifer Central Valley InSAR independent component analysis |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490470200001 |
WOS关键词 | SYNTHETIC-APERTURE RADAR ; INDEPENDENT COMPONENT ANALYSIS ; LAND SUBSIDENCE ; SURFACE DEFORMATION ; LAS-VEGAS ; INSAR ; CALIFORNIA ; GROUNDWATER ; ALGORITHM ; UAVSAR |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187683 |
专题 | 气候变化 |
作者单位 | 1.Univ Oregon, Dept Earth Sci, Eugene, OR 97403 USA; 2.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Chaussard, Estelle,Farr, Tom G.. A New Method for Isolating Elastic From Inelastic Deformation in Aquifer Systems: Application to the San Joaquin Valley, CA[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Chaussard, Estelle,&Farr, Tom G..(2019).A New Method for Isolating Elastic From Inelastic Deformation in Aquifer Systems: Application to the San Joaquin Valley, CA.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Chaussard, Estelle,et al."A New Method for Isolating Elastic From Inelastic Deformation in Aquifer Systems: Application to the San Joaquin Valley, CA".GEOPHYSICAL RESEARCH LETTERS (2019). |
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