Reflection point navigation at 100 trace intervals for multichannel boomer seismic-reflection data collected by the U.S. Geological Survey along the Delmarva Peninsula, MD and VA, 2014 PNG formatted images of multi-channel boomer seismic-reflection profiles collected by the U.S. Geological Survey along the Delmarva Peninsula, MD and VA, 2014 (Esri polyline shapefile, GCS WGS 84) Trackline navigation for Edgetech SB-512i seismic-reflection data collected by the U.S. Geological Survey along the Delmarva Peninsula, MD and VA, 2014 (Esri point shapefile and CSV, GCS WGS 84) Shot point navigation at even 500 shot intervals for Edgetech SB-512i seismic-reflection data collected by the U.S. PNG formatted images of Edgetech SB-512i chirp seismic-reflection profiles collected by the U.S. Geological along the Delmarva Peninsula, MD and VA, 2014 (Esri polyline shapefile, GCS WGS 84) Trackline navigation for Klein 3000 sidescan-sonar data collected by the U.S. Geological Survey along the Delmarva Peninsula, MD and VA (8-bit GeoTIFF, UTM Zone 18N, WGS 84) Geological Survey along the Delmarva Peninsula, MD and VA, 2014 (GeoTIFF, UTM Zone 18N, WGS 84)Ģ-meter Swath interferometric backscatter data collected in 2014 by the U.S. Geological Survey in 2014 along the Delmarva Peninsula, MD and VA (PNG images, CSV text, and Esri point shapefile, GCS, WGS 84)ġ-meter sidescan-sonar mosaic image collected by the U.S. Location of sound velocity profiles along with profile plots collected by the U.S. Trackline navigation for Swath bathymetry collected by the U.S.
Geological Survey along the Delmarva Peninsula, MD and VA, 2014 (32-bit GeoTIFF, UTM Zone 18N, WGS 84) Version History 2.0 Filename and descriptionĥ-meter Swath bathymetry data collected by the U.S. More information about the USGS survey conducted as part of the Hurricane Sandy Response- Geologic Framework and Coastal Vulnerability Study can be found at the project website or on the WHCMSC Field Activity Web pages: and Processed data in raster and vector format are released here for the swath bathymetry, sidescan sonar, and seismic-reflection profiles. Data collected during the 2014 cruise include swath bathymetry, sidescan sonar, chirp and boomer seismic-reflection profiles, acoustic Doppler current profiler, and sample and bottom photograph data.
Geological Survey cruise was conducted in the summer of 2014 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that governs coastal system evolution at storm-event and longer timescales. Geological Survey data release, Ībstract: The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. The high resolution of acoustic image help to detect the variation of the wavelength and amplitude of sand ripples in the study area.Suggested citation: Pendleton, E.A., Ackerman, S.D., Baldwin, W.E., Danforth, W.W., Foster, D.S., Thieler, E.R., and Brothers, L.L., 2016, High-resolution geophysical data collected along the Delmarva Peninsula, 2014, USGS Field Activity 2014-002-FA (ver. A seabed feature map for the study area is obtained from the integration of output results of side scan sonar backscatter analysis with the QTC acoustic classification and ground-truthing using ROV and grab sampler.
These discrete parallel ridges are found to be trending parallel to the coastline. The integration between acoustic signal classes and the acoustic images can divided the study area into three acoustic categories 1) weak backscatter corresponds to very fine sand to silt sediments, 2) strong backscatter confined to coarse to medium sand, and 3) isolated reflections, which appear widespread along the whole study area and represent two discrete parallel discontinuous hard limestone ridges. ROV was applied to detailed video survey and sediment sampling to provide ground truth data. Side scan sonar was used for acoustic imaging and Quester Tangent Corporation (QTC) VIEW for acoustic signal survey. This study aims to provide a recent seabed characteristic of ridges along the eastern coast of Alexandria on the Egyptian Mediterranean Sea.