SEG-Y format of Knudsen chirp seismic-reflection profiles collected in Lake Mohave in 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）是科罗拉多河上兴建的多座多功能水库之一。该湖于1953年戴维斯大坝（Davis Dam）竣工后形成。自戴维斯大坝建成以来，从未对该湖湖床开展过任何测绘工作。2002年4月，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，完成了对该湖的地球物理勘测。本次勘测涵盖了几乎覆盖全湖床的侧扫声呐（sidescan sonar）图像采集，以及沿湖内布设的间距较大测线获取的高分辨率反射地震剖面（high-resolution seismic-reflection profiles）数据。此次湖床精细测绘被用于明确自水库蓄水以来，湖内淤积沉积物的总量、分布特征及沉积作用过程。