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PNG images of each seismic profile were generated in order to incorporate images of the seismic data into Geographic Information System (GIS) projects and data archives. These PNG images represent 2200 kilometers of chirp seismic data collected with an Edgetech Geo-Star FSSB sub-bottom profiling system and an SB-0512i towfish (0.5 - 12 kHz) during USGS field activity 2011-005-FA. The PNG format is universal and yields an easily viewable image of the seismic profiles. Corresponding trackline navigation is contained within a polyline shapefile (2011-005-FA_chirptrk.shp), shot-point locations are available in a point shapefile (2011-005-FA_chirp500sht.shp). (see: https://doi.org/10.5066/F75X2704)
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Are there legal restrictions on access or use of the data?Access_Constraints: none
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: | WinZip (version 14.0) file containing the chirp subbottom profiler PNG images collected by the USGS offshore of Fire Island, NY, 2011. This also includes associated metadata. in format PNG (version 1.0) Portable Network Graphics (PNG) Size: 850 |
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Network links: |
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/data/seismics/2011-005-FA_chimages.zip https://doi.org/10.5066/F75X2704 https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/ |
These data can be viewed with any PNG image viewing software.