Measuring Land Subsidence from Space PDF Download

Author: Devin L. Galloway
Publisher:
ISBN:
Category : Radar in earth sciences
Languages : en
Pages : 4

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Author:
Publisher:
ISBN:
Category : Earth
Languages : en
Pages : 4

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Author: Massimo Fabris
Publisher: MDPI
ISBN: 3036513884
Category : Science
Languages : en
Pages : 194

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Book Description
In this book are reported nine works related to land subsidence monitoring using remote sensing techniques. Land subsidence is a common phenomenon in many regions of the world, where it causes degradation of local ecosystems and disruption of economic activities. Its effects are more evident in densely populated areas in particular in low-lying territories such as river deltas and coastal areas where the combination of land subsidence and sea level rise increases the flooding risk. For this reason, the monitoring of ground deformations is a crucial step to obtain important information for the development of risk mitigation strategies. In the presented papers, the characteristics of land subsidence occurring in different study areas are described, and recent developments in the used methodologies for the monitoring of the ground displacements are discussed and validated also by means of ground-based data. Moreover, advantages and disadvantages of the adopted techniques are highlighted. The outcomes of these research works can provide national and local authorities with useful information for the implementation of integrated monitoring systems in the areas most affected by land subsidence.

Author: Herbert H. Schumann
Publisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 28

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Author: Michelle Sneed
Publisher:
ISBN:
Category : Global Positioning System
Languages : en
Pages : 36

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Author: Paul Inkenbrandt
Publisher: Utah Geological Survey
ISBN: 1557918910
Category : Base flow (Hydrology)
Languages : en
Pages : 84

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Book Description
This 116-page report presents the results of an investigation by the Utah Geological Survey of land subsidence and earth fissures in Cedar Valley, Iron County, Utah. Basin-fill sediments of the Cedar Valley Aquifer contain a high percentage of fine-grained material susceptible to compaction upon dewatering. Groundwater discharge in excess of recharge (groundwater mining) has lowered the potentiometric surface in Cedar Valley as much as 114 feet since 1939. Groundwater mining has caused permanent compaction of fine-grained sediments of the Cedar Valley aquifer, which has caused the land surface to subside, and a minimum of 8.3 miles of earth fissures to form. Recently acquired interferometric synthetic aperture radar imagery shows that land subsidence has affected approximately 100 mi² in Cedar Valley, but a lack of accurate historical benchmark elevation data over much of the valley prevents its detailed quantification. Continued groundwater mining and resultant subsidence will likely cause existing fissures to lengthen and new fissures to form which may eventually impact developed areas in Cedar Valley. This report also includes possible aquifer management options to help mitigate subsidence and fissure formation, and recommended guidelines for conducting subsidence-related hazard investigations prior to development.

Author: Jay Gao
Publisher: CRC Press
ISBN: 1000856135
Category : Technology & Engineering
Languages : en
Pages : 728

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Book Description
This book presents a comprehensive coverage of remote sensing technology used to gather information on 12 types of natural hazards in the terrestrial sphere, biosphere, hydrosphere, and atmosphere. It clarifies in detail how to yield spatial and quantitative data on a natural hazard, including its spatial distribution, severity, causes, and the likelihood of occurrence. The author explains multiple methods of attaining data, describes the pros and cons of each method, and encourages readers to choose the best method applicable to their case. The author offers a practical approach to data analysis using the most appropriate methods and software. 1. Covers all major natural hazards including hurricanes, tornadoes, wildfires, and avalanches. 2. Studies each natural hazard holistically, ranging from spatial extent, severity, impact assessment, causes, and prediction of occurrence. 3. Explains different remotely sensed data and the most appropriate method used. 4. Compares different ways of sensing and clarifies the pros and cons of any selected data or their analysis. 5. Provides ample examples of each aspect of a natural hazard studied augmented with graphic illustrations and quality assurance information. All professionals working in the field of natural hazards, senior undergraduate, and graduate students, will find in-depth approaches and sufficient information to become knowledgeable in the methods of yielding and analyzing data provided with remote sensing technology, ultimately providing a deeper understanding of natural hazards.

Author: Richard R. Forster
Publisher: Utah Geological Survey
ISBN:
Category : Science
Languages : en
Pages : 35

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Book Description
The objective of this 35 page report is to measure land-surface subsidence in southwest Utah using Interferometric Synthetic Aperture Radar (InSAR).

Author:
Publisher:
ISBN:
Category : Earth movements
Languages : en
Pages : 2

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Author: Charles E. Heywood
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 30

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