Hillshaded relief produced from bathymetric data collected by the U.S. Geological Survey offshore of the Chandeleur Islands, LA, 2006-2007 (BATHY_HILLSH.ASC, ESRI ASCII GRID)

• Main Author: U.S. Geological Survey
• Format: Dataset
• Language: unknown
• Published: USGS Science Data Catalog 2009
• Subjects: U.S. Geological Survey; USGS; Woods Hole Science Center; WHSC; Coastal and Marine Geology Program; CMGP; bathymetry; swath bathymetry; interferometry; sea-floor morphology; ArcRaster grid; hillshade; WHSC field activity serial number 06015; WHSC field activity serial number 07007; oceans; elevation; imageryBaseMapsEarthCover; geoscientificInformation; Louisiana; Chandeleur Islands; Breton Island; Gosier Island; Curlew Island; Mississippi River Gulf Outlet; New Harbor Islands; North Islands; North-Central Gulf Coast; United States; Gulf of Mexico; MRGO; New Harbor; Orleans
• Online Access: https://search.dataone.org/view/96f7aa92-de28-4c7a-a30f-366257137541

In 2006 and 2007, the U.S. Geological Survey, in partnership with Louisiana Department of Natural Resources and the University of New Orleans, conducted geologic mapping to characterize the sea floor and shallow subsurface stratigraphy offshore of the Chandeleur Islands in Eastern Louisiana. The mapping was carried out during two cruises on the R/V Acadiana. Data were acquired with the following equipment: an SEA Ltd SwathPlus interferometric sonar (234 kHz), Klein 3000 dual frequency sidescan sonar, and an Edgetech 512i chirp subbottom profiling system. The long-term goal of this mapping effort is to produce high-quality geologic maps and geophysical interpretations that can be utilized to investigate the impact of Hurricane Katrina in 2005 and to identify sand resources within the region.