Geologic characteristics of benthic habitats in Glacier Bay, southeast Alaska

Table of Contents

• Project Description
  
  • Abstract
  • Summary
    • Figure 1. Map showing location of the study area in Glacier Bay, southeast Alaska
  • Revisions
  • File formats
  • Acknowledgments
  • References
  • Contacts
    
• Methods
  • Sea Floor Video
    
  • Data Processing
  • Geomorphic Classification
  • Bathymetric Classification
  • Slope and Complexity
• Results
  • Seafloor Features
    
  • Sediment Type
    
    • Figure 2. Multibeam acoustic reflectance in Glacier Bay, with symbols denoting primary substrate type from video observations. The boxed area corresponds to the region of transition east of Willoughby Island discussed below.
      
  • Meso/Macrohabitats
    
  • Substrate Map
    
    • Figure 3. Map of bottom induration, meso-scale and macro-scale seafloor features, and bathymetric classes in Glacier Bay.
      
  • Regions of Transition
    
    • Figure 4. Acoustic backscatter data and video observations illustrate a region of transition in seafloor properties east of Willoughby Island, from soft, muddy sediment in the north (top) to coarse-grained boulders and cobbles in the south.
      
  • Sand Waves
    
    • Figure 5. Obliquely-oriented features in multibeam bathymetry of lower Glacier Bay. Video observations reveal these features are sand waves 1-2 m in height.
      
  • Habitat Classification
    
    • Map
      
    • Table
      
      • Figure 6. Map showing Habitat Classifications of Glacier Bay (after Greene et al., 1999).
• Data Catalog
  • Basemaps
    • Quick view of Glacier Bay coastline
    • Metadata FAQ for Glacier Bay coastline
    • Quick view of bathymetric contours at 75m, 200m, and 400m
    • Metadata FAQ for bathymetric contours at 75m, 200m, and 400m
    • Quick view of place names
    • Metadata FAQ for place names
  • Scuba and ROV dive habitat observations
    • Quick Views of Scuba and ROV dive habitat observations in the central bay of Glacier Bay
    • Meatadata FAQ for Scuba and ROV dive habitat observations in the central bay of Glacier Bay
    • Quick Views of Scuba and ROV dive habitat observations near Willoughby Island in Glacier Bay
    • Metadata FAQ for Scuba and ROV dive habitat observations near Willoughby Island in Glacier Bay
  • Multibeam Bathymetry
    • Quick view of Glacier Bay bathymetry, OF02-391
    • Metadata FAQ for Glacier Bay Bathymetry, OF02-391
    • Quick view of hillshaded image of Glacier Bay bathymetry
    • Metadata FAQ for hillshaded image of Glacier Bay bathymetry
    • Quick view of Glacier Bay Backscatter
    • Metadata FAQ for Glacier Bay Backscatter
  • Benthic habitat polygon shape file:
    • Quick view of Glacier Bay polygon shapefile
    • Metadata FAQ for Glacier Bay polygon shapefile
• Revision History

Accessibility   |   FOIA   |  Privacy   |   Policies and Notices
U.S. Department of the Interior      U.S. Geological Survey

URL: http://walrus.wr.usgs.gov/2006/1081/toc.html
maintained by Michael Diggles
last modified April 4, 2006 (mfd)