Media and Downloads
Documents
ENWRA - Introduction to a Hydrogeological Study
This publication contains detailed information about ENWRA's projects and goals, as well as a general overview of groundwater in Nebraska.
Download (PDF, 6.5 MB)
USGS Open File Report 2008-1018
This report contains data gathered from the first round of HEM surveys flown at three pilot study sites in March 2007.
Download (PDF, 1 MB)
2009 HEM Poster
This poster summarizes some of the HEM data collected in 2009. The poster was presented at the 2009 Geological Society of America Annual Meeting in Portland, OR.
Download (PDF, 4 MB)
Water Quality Data
To view water quality data, use the slider bar on the map to zoom into your area of interest and click on a site marker. A link to download the data in a pdf document will appear in an information bubble.
Video
Water Vision - Mapping Eastern Nebraska Aquifers with the Heliborne Electromagnetic Survey
Ashland
This shows inverted HEM data from the Ashland pilot study site. The white areas are where data has been removed to provide a cross-sectional view. The starting viewpoint is to the north. The Todd Valley is represented by red in the upper left hand corner and the glacial till uplands near Gretna by blue in the upper right hand corner.
Firth
This is the Firth voxel model generated from inverted HEM data. Red zones are areas having resistivity values greater than or equal to 80 ohm-meters. The semi-transparent layer represents ground surface, and the black columns represent test holes. The starting viewpoint is to the northwest. The two red areas likely correspond to the edges of a paleovalley aquifer.
Oakland
This is the Oakland voxel model generated from inverted HEM data. Red zones are areas having resistivity values greater than or equal to 80 ohm-meters. The semi-transparent layer represents ground surface, and the black columns represent test holes. The starting viewpoint is to the north. The red swath coincides with sand and gravels associated with Logan Creek.