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Scientific Investigations Report 2008–5048

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### Prepared in cooperation with the Nebraska Department of Environmental Quality

## Hydrographic Surveys for Six Water Bodies in Eastern Nebraska, 2005–07

| Contents | CitationAbstract
The U.S. Geological Survey, in cooperation with the Nebraska Department of Environmental Quality, completed hydrographic surveys for six water bodies in eastern Nebraska: Maskenthine Wetland, Olive Creek Lake, Standing Bear Lake, Wagon Train Lake and Wetland, Wildwood Lake, and Yankee Hill Lake and sediment basin.  The bathymetric data were collected using a boat-mounted survey-grade fathometer that operated at 200 kHz, and a differentially corrected Global Positioning System with antenna mounted directly above the echo-sounder transducer.  Shallow-water and terrestrial areas were surveyed using a Real-Time Kinematic Global Positioning System.  The bathymetric, shallow-water, and terrestrial data were processed in a geographic information system to generate a triangulated irregular network representation of the bottom of the water body.  Bathymetric contours were interpolated from the triangulated irregular network data using a 2-foot contour interval.  Bathymetric contours at the conservation pool elevation for Maskenthine Wetland, Yankee Hill Lake, and Yankee Hill sediment pond also were interpolated in addition to the 2-foot contours.  The surface area and storage capacity of each lake or wetland were calculated for 1-foot intervals of water surface elevation and are tabulated in the Appendix for all water bodies. |  |  |  | **Posted June 2008****Download report** (9.25 MB pdf)**Downloads:**Maskenthine Wetland (172 KB zip file)Olive Creek Lake (3.1 MB zip file)Standing Bear Lake (4.1 MB zip file)Wagon Train Lake and Wetland (6.1 MB zip file)Wildwood Lake (5.5 MB zip file)Yankee Hill Lake (2.5 MB zip file)Metadata (59 KB zip file)These data have been compressed using the software WinZip®, available at winzip.com. |
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### Contents

Abstract

Introduction

Maskenthine Wetland

Olive Creek Lake

Standing Bear Lake

Wagon Train Lake and Wetland

Wildwood Lake

Yankee Hill Lake and Sediment Basin

Methods

Bathymetric and GPS Data Collection

Data Processing

Bathymetric Surface Generation

Hydrographic Surveys

Bathymetric Contours

Area and Volume Calculation

Timing of Bathymetric, Shallow-Water, and Terrestrial Surveys

Estimation of Bathymetric Contours

Final Bathymetric Contours and Point Data

Summary

References Cited

Appendix

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U.S. Department of the Interior | U.S. Geological Survey	URL: *http://pubsdata.usgs.gov/pubs/sir/2008/5048/index.html*	Questions or Assistance: Contact USGS	Last modified: Thursday, 10-Jan-2013 18:47:44 EST