Chirp Seismic Survey Tracklines - Lake Mohave 2002

Lake Mohave is one of several multi-purpose reservoirs that have been constructed on the Colorado River. The lake was formed upon completion of the Davis Dam in 1953. No mapping of the floor of the lake had been conducted since completion of the Davis Dam. The U.S. Geological Survey, in cooperation with researchers from the University of Nevada Las Vegas, completed a geophysical survey of this lake in April 2002. The survey included collection of sidescan sonar imagery of nearly the entire lake floor, and high-resolution seismic-reflection profiles along widely spaced lines throughout the lake. The detailed mapping of the lake floor was used to determine the amount of sediment that had accumulated in the lake since impoundment, its distribution, and the processes of deposition.

莫哈韦湖（Lake Mohave）是科罗拉多河上已建成的多用途水库之一。该湖于1953年戴维斯大坝（Davis Dam）完工后形成。自戴维斯大坝建成以来，尚未开展过该湖湖床的测绘工作。美国地质调查局（U.S. Geological Survey）联合内华达大学拉斯维加斯分校（University of Nevada Las Vegas）的研究人员，于2002年4月完成了针对该湖泊的地球物理勘测。此次勘测涵盖了几乎覆盖全湖湖床的侧扫声呐图像采集，以及沿全湖布设的宽间隔测线的高分辨率地震反射剖面数据获取。本次湖床精细测绘被用于确定自水库蓄水以来湖内累积的沉积物总量、分布特征及其沉积作用过程。