Accession Number : AD1037860

Title :   Remote Sensing and Monitoring of Earthen Flood-Control Structures

Descriptive Note : Technical Report,01 Dec 2014,31 Mar 2017


Personal Author(s) : Dunbar,Joseph B ; Galan-Comas,Gustavo ; Walshire,Lucas A ; Wahl,Ronadl E ; Yule,Donald E ; Corcoran,Maureen K ; Bufkin,Amber L ; Llopis,Jose L

Full Text :

Report Date : 01 Jul 2017

Pagination or Media Count : 326

Abstract : The purpose of this study was to identify and review technologies that are applicable in locating weaknesses and poor performance within flood-control structures from extreme loading events. The focus of this study was to assess current technologies and state-of-practice techniques involving remote sensing, testing, and real-time monitoring of earthen structures. Advancements in satellite and sensor technology combined with high-speed internet and telecommunication capabilities and smart decision-making software permits real-time monitoring of earthen flood-control structures such as dams and levees. Technologies evaluated included both active and passive sensing methods. These technologies included satellite, airborne, and ground-based sensor systems to identify surface and subsurface characteristics of the watershed, as well as point sensors typically embedded in hydraulic structures to monitor the health of the structure. Point sensors typically record water loading, soil pore pressures, soil movements, and other important properties to evaluate global stability of the water control structure. Geophysical-based methods are typically used in mapping, monitoring, and detection of subsurface stratigraphy, seepage, and any changes in subsurface conditions through time within flood-control structures and their foundations.

Descriptors :   REMOTE SENSING , monitoring , FLOOD CONTROL , LEVEES , Earth dams , GEOPHYSICS , ELECTROMAGNETIC RADIATION , FAILURE (MECHANICS) , erosion , inspection , THERMAL IMAGES , FORWARD LOOKING INFRARED SYSTEMS , SEISMIC DETECTION , deformation (mechanics) , Fiber optics , computer programs , resolution , CONDUCTIVITY , geographic information systems , Ground penetrating radar , instrumentation

Subject Categories : Target Direction, Range and Position Finding
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE