Publisher: BiblioGov (February 5, 2013)
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This document is a free up of electronic information from a helicopter electromagnetic and magnetic survey that was once carried out in the course of June 2009 in parts of western Nebraska as a part of a joint hydrologic examine through the North Platte average source District (NRD), South Platte NRD, and U.S. Geological Survey (USGS). Flight traces for the survey totaled 937 line kilometers (582 line miles). the target of the reduced in size survey, carried out by way of Fugro Airborne, Ltd., is to enhance the knowledge of the relation among surface-water and groundwater platforms severe to constructing groundwater versions utilized in administration courses for water assets. a different point of the survey is the flight line format. One set of flight traces was once flown in a zig-zag trend extending alongside the size of the formerly amassed airborne information. The luck of this survey layout trusted a well-understood nearby hydrogeologic framework and version built by way of the Cooperative Hydrologic examine of the Platte River Basin and the airborne geophysical facts amassed in 2008. Resistivity adaptations alongside strains will be on the topic of this framework. as well as those traces, extra conventional surveys along with parallel flight traces, separated by way of approximately four hundred meters have been conducted for 3 blocks within the North Platte NRD, the South Platte NRD and within the zone of Crescent Lakes. those surveys helped to set up the spatial adaptations of the resistivity of hydrostratigraphic devices. an extra survey was once flown over the Crescent Lake sector. the target of this survey, funded by means of the USGS place of work of Groundwater, was once to map shallow hydrogeologic good points of the southwestern a part of the Sand Hills that comprise a mixture of clean to saline lakes.