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This shapefile contains approximately 37 kilometers of seismic trackline data collected with an Edgetech SB-424 chirp subbottom profiler by the U.S. Geological Survey during USGS survey 2005-04-FA. These data were collected in Moultonborough Bay, Lake Winnipesaukee, New Hampshire as part of a collaborative USGS and New Hampshire Department of Environmental Services research program to assess the distribution of variable leaf water-milfoil. The seismic trackline data are used in conjunction with the unique shot point navigation to aid interpretation and correlate features visible within the seismic record with features within the sidescan-sonar and bathymetric data (i.e. surficial sediment distribution and topography).
Are there legal restrictions on access or use of the data?
Use_Constraints:Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
|Data format:||Zip file containing the chirp subbottom profiler trackline data from the Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata. in format Shapefile (version ArcGIS 9.0) Esri polyline shapefile Size: 0.2|
This zip file contains data available in Esri shapefile format. The zip file also contains associated metadata. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcGIS Explorer, capable of displaying the data is available from Esri at www.esri.com.