Monitoring Subsidence Associated with Groundwater Dynamics in the Central Valley of California Using Interferometric Radar
Monitoring Subsidence Associated with Groundwater Dynamics in the Central Valley of California Using Interferometric Radar
复制标题
使用干涉雷达监测与加利福尼亚州中央山谷地下水动态相关的沉降
DOI：
10.1002/9781118872086.ch24
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Zhen Liu
中科院分区：
文献类型：
--
作者：
T. Farr;Zhen Liu
加州的中央谷生产全国四分之一的粮食，其中大部分是用地下水灌溉的。本章介绍了干涉合成孔径雷达（干涉合成孔径雷达）监测地面沉降作为地下水动力学的一个功能的应用程序的持续研究的结果。它定义了整个范围以及从2007年到2011年在圣华金河谷南部的一个大型沉降碗的演变，并提出了几种不同的格式，面向不同的观众的结果。进一步的发展，包括地下地质信息，可以允许更多的定量估计地下水变化的基础上干涉合成孔径雷达沉降历史。中央谷南部的含水层系统既有非承压部分，也有承压部分，这是由粗细颗粒沉积物交替层造成的。雪和地表水在加州的水文循环中具有首要的重要性，新技术正在应用于它们的测绘和监测。
California's Central Valley produces one quarter of the nation's food, much of it irrigated with groundwater. This chapter presents results of a continuing study of the application of Interferometric synthetic aperture radar (InSAR) to monitoring of land subsidence as a function of groundwater dynamics. It defines the full extent as well as the evolution from 2007 to 2011 of a large subsidence bowl in the southern San Joaquin Valley and presents the results in several different formats geared to different audiences. Further development, including subsurface geologic information, may allow more quantitative estimates of groundwater change based on InSAR subsidence histories. The aquifer system of the southern Central Valley has both unconfined and confined parts caused by alternating layers of coarse and fine‐grained sediments. Snow and surface water are of primary importance in the hydrologic cycle of California, and new techniques are today being applied to their mapping and monitoring.