![]() ![]() Lake Mohave Geophysical Survey 2002: GIS Data Release OF 2004-1247 ![]() |
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Introduction:
In addition to the sidescan-sonar imagery, high-resolution seismic-reflection profiles were collected along widely spaced lines throughout the lake. Over 410 km of data were acquired with a Knudsen chirp subbottom system operating at a central frequency of 3.5 kHz. What follows is a series of images indicating the tracklines along which seismic-reflection data were collected. The images progress from north to south. Clicking on any image will open a larger image of the same area. 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. This report presents the data and GIS used as the foundation for the report by Foster and others (2004). These data include the georeferenced sidescan-sonar mosaic, raw navigation, processed navigation for both seismic and sidescan tracklines, JPEG images of the seismic-reflection profiles, and the polygon shapefile of the interpretation resulting from the analysis of these data. Brief descriptions of these data types can be found in the Data/GIS section of this report, while the accompanying FGDC compliant metadata, as well as links to the data, can be found in the Metdata/Data Catalog section of this report. |