Revision History for Data Series 848

Nancy T. DeWitt, William R. Pfeiffer, Julie C. Bernier, Noreen A. Buster, Jennifer L. Miselis, James G. Flocks, B.J. Reynolds, Dana S. Wiese, 
and Kyle W. Kelso 

Coastal Bathymetry Data Collected in 2011 from the Chandeleur Islands, Louisiana

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Posted online September 12, 2014

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Revised and Reposted July 21, 2015, version 2.0

The 2011 swath (IFB) bathymetry was found to have issues post publication. The swath (IFB) bathymetry was reprocessed thru SwathPlus 
and CARIS, exported and merged with the single beam data and a new DEM was created.

New files are located in "downloads" folder only and are listed below (new files have same file name as old names per the USGS protocol):

ascii files/folder:
11BIM01_IFB_ITRF05_xyz.txt
11BIM01_IFB_NAD83_NAVD88_G09_xyz.txt
11BIM01_IFB_WGS84_MLLW.txt
11BIM01_IFB_xyz.zip

raster files/folder:
Chandeleurs_2011_50_NAD83_NAVD88_G09_DEM.tif (shapefile)
Chandeleurs_2011_50_NAD83_NAVD88_G09_DEM.lyr (layer file)
Chan11_DEM.zip

Chan11.mxd
Chan11-GIS.zip


SBB files (single-beam bathymetry) and all metadata and vector files remain unchanged from original publication.

All figures and thumbnail images of DEM reflect the originally published data, however the actual DEM GIS files are new data.

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