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河流地震学:地震学方法拓展河流水文的连续动态监测

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河流系统通过水沙搬运过程在塑造地表景观方面发挥着不可或缺的作用。河流水文和泥沙输移研究是分析河流运动规律、优化水资源配置、提升防灾减灾能力的关键,但其监测长期以来受困于传统的河流监测方法对动态过程的时空变化刻画不足的限制。河流地震学是近年发展起来的一门新兴交叉学科,其结合地貌学、地震学、水文学等多学科的综合优势,利用布设在河岸或河道的地震检波器,收集、解析包括湍流、推移质等多种噪声源产生的震动信号,对河流进行连续动态监测。地震学手段突破了传统河流水文监测研究方法的局限,有助于深入对河流综合地貌系统的动态监测与理解,促进了固体地球物理学、环境科学和水文学的交叉融合。本文综述了河流地震学的方法理论、发展历程及其应用进展,并归纳总结了待解决的问题,提出该学科未来应用的展望,旨在为河流地貌监测和水资源管理提供科学支撑。
Fluvial seismology:A seismological approach to advancing the continuous dynamic monitoring of river hydrology
Rivers have a significant impact on the Earth's surface as they shape it through the transportation of water and sediment.Having a solid grasp of river hydrology and sediment transport is essential for analyzing river dynamics,optimizing water resource allocation,improving disaster prevention and mitigation capabilities.Unluckily,the effectiveness of traditional river monitoring methods has been limited by their inability to accurately capture detailed hydrological data due to constraints in space and time.Fluvial seismology is a rapidly growing field that utilizes seismic sensors placed along riverbanks or within river channels to gather vibration signals caused by different sources of noise such as turbulence and sediment transport.This method allows for the continuous and dynamic monitoring of rivers.Seismological methods have expanded beyond the constraints of conventional hydrological monitoring techniques,enabling a more comprehensive comprehension of the intricacies of river geomorphic systems.This advancement promotes the integration of solid earth geophysics,environmental science,and hydrology,enriching our holistic understanding of river systems.This paper provides an overview of the theoretical foundations,historical development,and recent advancements in fluvial seismology.The contribution highlights the method's capability to accurately capture the ongoing dynamic processes of rivers and delves into its potential uses in monitoring river geomorphology and managing water resources.The review discusses the use of seismic instruments to detect and interpret signals related to riverine processes,highlighting the advantages over conventional methods.Fluvial seismology offers a significant advantage in terms of providing uninterrupted,detailed data that is essential for comprehending the time-based changes in river processes.Traditional methods often rely on sporadic sampling,which can miss critical events and changes.On the other hand,seismological techniques provide a more comprehensive understanding of river dynamics.They reveal valuable information about sediment transport rates,flow turbulence,and geomorphic changes over time.The evaluation also highlights a number of outstanding concerns and difficulties in the field.One of the main difficulties lies in distinguishing between different sources of noise.Seismic signals generated by river processes can be complex and noisy,requiring more refined deployment strategies and analytical methods to extract meaningful information.Additionally,there is a requirement for improved sensor technology to enhance the precision and reliability of measurements,especially in challenging or extreme conditions.Furthermore,the article outlines future directions for fluvial seismology,proposing innovative research avenues and technological advancements that could further enhance our understanding and management of river systems.For example,seismological methods can be applied to monitor the shallow subsurface of riverbeds,which can offer a more comprehensive understanding of river systems.Developing novel algorithms and machine learning techniques to analyze seismic data has the potential to enhance our understanding of intricate signals and forecast river behavior.By tackling these obstacles,fluvial seismology has the potential to greatly enhance our capacity to monitor river dynamics,forecast natural calamities,and efficiently manage water resources.This field represents a significant leap forward in river monitoring,offering a robust scientific framework for capturing the complex and dynamic nature of river systems.Ultimately,this review seeks to establish a strong basis for future research and applications in fluvial seismology,with the ultimate goal of supporting the sustainable management of riverine landscapes and water resources.Through the integration of various fields and the advancement of our technological capabilities,fluvial seismology has the potential to deepen our comprehension of river dynamics and provide valuable support for the protection and management of these crucial natural systems.

fluvial seismologybedload transporthydrologic monitoringbackground noisegeomorphology

杨婧蕾、刘静、栗帅、闫晓东、王协康、王文鑫、孟浩然、兰玲

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天津大学地球系统科学学院,天津 300072

中国科学院、水利部成都山地灾害与环境研究所,成都 610299

四川大学山区河流保护与治理全国重点实验室,成都 610065

南方科技大学地球与空间科学系,深圳 518055

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河流地震学 推移质输移 水文监测 背景噪声 地貌学

2024

科学通报
中国科学院国家自然科学基金委员会

科学通报

CSTPCD北大核心
影响因子:1.269
ISSN:0023-074X
年,卷(期):2024.69(36)