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Album caption: Marysville during flood of January-February, 1963. Yuba County, California. ( Photo by U. S. Army Corps of Engineers ). Published as figure 17 in U. S. Geological Survey. Water-supply paper 1830-A. 1966.
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Alaska Earthquake March 27, 1964. Aerial view of the southern part of the Seward waterfront showing extent of ground fracture and earthquake damage. Seward District, Alaska Gulf Region, Alaska, March 1964. Photo by U.S. Army, March, 1964; mosaicked by U.S. Geological Survey. Published in U.S. Geological Survey Professional paper 542-E, Figure 3, p.E8 & E9. 1967
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Album caption: View of floodwaters of the Des Moines River flowing over center Street Dam in Des Moines. Polk County, Iowa. June 1954. (Photo by U. S. Army Corps of Engineers) Published as figure 12 in U. S. Geological Survey. Water-supply paper 1370-A. 1958.
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These files were used to construct corridors estimating the extent of new coastal corridors exposed by reduced lake levels. They are included here to show the available horizontal extent of lidar-derived topo-bathymetric data and thus explicitly identify gaps and limitations of predicted corridor extents under various reduced lake level scenarios. In addition, these files provide users with a background layer that depicts the topographic variability of the submerged near-shore lake bed and terrestrial landscape.These files are 5m grid representations of the hydrographic and topographic data collected by the CHARTS system along the coasts of the U.S. sides of Lake Michigan, Lake Huron, Lake St. Clair, Lake Erie,...
Categories: Data,
Map;
Types: Map Service,
OGC WMS Layer;
Tags: Mobile District,
Accountability,
Bathymetry,
CHARTS,
GLRI, All tags...
Great Lakes,
Great Lakes Coastal Zones,
Great Lakes Restoration Initiative,
Invasive Species,
Invasive Species,
JALBTCX,
Lidar,
NCMP ,
Phragmites,
SHOALS,
Template 588,
Template 67,
Template 68,
Topography ,
coastal corridors,
elevation, Fewer tags
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This study undertook the identification of constraints on a one foot pool raise at Mississippi River Lock and Dam 18. Pool 18 is approximately 26.5 miles long with a thalweg gradient of 0.28 foot per mile. A pool raise, as measured at the dam, would have variable spatial effect depending on main stem and tributary discharge which creates a sloping water surface at all but extreme low flow conditions. At low or no flow conditions, a one foot pool raise at the dam would flood shoreline vegetation throughout the pool. At the most probable flow the fall migration period, a one foot pool raise could flood approximately 300 acres of low elevation and shoreline vegetation in the lower 16 miles of the pool. Constraints...
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