| Main Title |
National Assessment of Shoreline Change. a pilot study of historical coastal bluff retreat in the Great Lakes, Erie, Pennsylvania [electronic resource] / |
| Author |
Hapke, Cheryl J.
|
| Publisher |
U.S. Geological Survey, |
| Place Published |
Reston, Va. |
| Year Published |
2009 |
| OCLC Number |
317399704 |
| Subject Added Ent |
Coast changes--Erie, Lake.;
Coast changes--Pennsylvania--Erie.;
Coast changes--Great Lakes (North America);
Cliffs--Erie, Lake.;
Cliffs--Pennsylvania--Erie.;
Erosion--Erie, Lake.;
Erosion--Pennsylvania--Erie.
|
| Internet Access |
|
| Holdings |
| Library |
|
Call Number |
Additional Info |
Location |
Date Modified |
| EJBM |
POD |
Internet only |
|
Headquarters Library/Washington,DC |
04/06/2009 |
|
| Collation |
[25] p. : HTML, digital, PDF file. |
| Notes |
Title from PDF title screen (viewed on March 30, 2009). Includes bibliographical references. |
| Contents Notes |
The U.S. Geological Survey (USGS), as part of the National Assessment of Coastal Change Hazards Project, conducted a pilot study of bluff retreat along the Lake Erie, Pa., coastline to assess the feasibility of undertaking a larger, multi-state analysis in the Great Lakes region. This report provides an overview of the pilot-study location and bluff geomorphology, the data sources and methodology, results of the analysis, and a discussion of the feasibility of undertaking a similar analysis along eroding bluffs in other Great Lakes states. The average rate of coastal bluff retreat for the Lake Erie, Pa., bluffs was -0.3 « 0.1 m/yr (retreat rates are presented as negative numbers in this report), based on rates averaged from 1,595 individual transects. Retreat rates generally were lowest where bedrock outcrops are exposed as the basal unit in the bluff. The highest rates are associated with anthropogenic activities, including jetties that trap littoral sediment, depleting a source of material for the natural replenishment of protective beaches downcoast, and extensive irrigation of farmlands on the tops of the bluffs, which can destabilize bluffs by enhancing ground-water outflow. |
| Access Notes |
Mode of access: Internet from the USGS web site. |
| Author Added Ent |
|
| Corporate Au Added Ent |
Geological Survey (U.S.) |
| Title Ser Add Ent |
U.S. Geological Survey open-file report ; 2009-1042. |
| Alternate Title |
Pilot study of historical coastal bluff retreat in the Great Lakes, Erie, Pennsylvania |
| PUB Date Free Form |
2009 |
| Series Title Untraced |
Open-file report ; 2009-1042 |
| BIB Level |
m |
| Medium |
electronic resource |
| OCLC Time Stamp |
20090330102741 |
| Cataloging Source |
OCLC/T |
| Language |
eng |
| SUDOCS Number |
I 19.76:2009-1042 |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
02958nam 2200457Ia 45020 |
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