Utilization of Ground Penetrating Radar to Conduct Sediment Surveys of Frozen Reservoirs

by T. A. Iivari, Soil Conservation Service, United States,
J. A. Doolittle, Soil Conservation Service, United States,



Abstract: The ground penetrating radar (GPR) system consisted of a control unit, antenna, recorder, a power supply on a sled towed by a snowmobile. A 120 Mhz antenna was utilized and gave excellent results both in depth of penetration and detailed image recording. As the antenna was moved over the ice, a continuous subsurface profile was developed and recorded. Twelve ground-truth observations revealed that most observations were within 6.2 cm of the recorded values. The Baker River reservoir (1.3 ha) was surveyed by GPR in 1 hour. An additional 1.5 hours were required to obtain 12 ground-truth depth measurements through the ice.

Subject Headings: Sediment | Reservoirs | Radar | Geomatic surveys | Antennas | Rivers and streams | Ice | Subsurface environment | North America | New Hampshire | United States

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