St. Petersburg Coastal and Marine Science Center
By Stanley D. Locker, Arnell S. Forde, and Christopher G. Smith
Grand Bay Alabama and Mississippi were surveyed between May and June 2015, using an Edgetech chirp 424 subbottom profiler and a Klein 3900 sidescan sonar. The objective was to characterize the geologic framework of recent estuarine sediment accumulation in the bay. This data release includes the raw chirp subbottom Society of Exploration Geophysicists (SEG Y) data files, sidescan data files in eXtended Triton Format (XTF), and a processed sidescan sonar mosaic GeoTIFF.
|File Name and Description||Metadata (XML format)||Metadata (text format)||Download File|
Unprocessed digital chirp subbottom trace data (.sgy)
Unprocessed Klein SonarPro xtf data files (.xtf)
|Same as above||Same as above||2015-315-FA_xtf.zip
Processed sidescan sonar backscatter imagery merged into a mosaic at 30 centimeter pixel resolution.
NOTE: Backscatter intensity is represented by a gray-scale pallet with high backscatter intensities as darker grays (.tif, .txt)
|Same as above||Same as above||2015-315-FA_SSSMosaic.zip
Survey trackline locations (.mxd, .shp, .txt)
|Same as above||Same as above||2015-315-FA_arc.zip
Geophysical logs and vessel configuration diagram (.pdf, .jpg)
|Not applicable||Not applicable||2015-315-FA_logs.zip
Locker, S.D., Forde, A.S., and Smith, C.G., 2018, Subbottom and sidescan sonar data acquired in 2015 from Grand Bay, Mississippi and Alabama: U.S. Geological Survey data release, https://doi.org/10.5066/P9374DKQ.