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This coverage contains arcs representing the sailing line for the center of the navigation channel for the Upper Mississippi River, that is maintained by the Corps of Engineers.
Categories: Data,
Publication;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Mississippi River,
Upper Mississippi River,
navigation
Airborne Geophysical Surveys over the 2011 Mineral, Virginia, Earthquake Area The 2011 moment magnitude (Mw) 5.8 central Virginia earthquake was felt by millions of people and caused significant damage in the eastern United States. As part of efforts to better understand the faults and geologic features associated with the earthquake, the U.S. Geological Survey commissioned airborne geophysical surveys over the epicentral area. Here we present the data from those surveys and summarize research results based on those datasets. The following items can be obtained by following links on this page: - Background information on the Mineral, Virginia earthquake and a summary of first analysis results - Downloadable...
Categories: Data,
Publication;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: USGS Science Data Catalog (SDC)
Dr. Richard Janda of the USGS began a channel monitoring program in Redwood Creek in northern coastal California in 1973. The USGS continued this work through 2013, when the Research Geologist, Dr. Mary Madej retired. This effort produced 40 years of channel change data in rivers that were disrupted by severe erosion following timber harvest of old-growth redwood forests, a portion of the program's data (plus 1953 data) has been preserved in this data release. Original field surveys documented bank erosion, aggradation, and degradation at 60 cross-sectional transects at annual or biannual timesteps. Three river reaches also have long-term longitudinal channel bed surveys which document the distribution and development...
Categories: Data,
Publication;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: 44 Creek,
Bond Creek,
California,
Dolason Creek,
Elam Creek,
The Land Capability Potential Index (LCPI) is a hydrogeomorphic model of potential flow-return interval and soil drainage classes developed as a decision support tool for the restoration and management of floodplain habitat on the Lower Missouri River. Because the LCPI captures abiotic variables known to affect the distribution of plant species, it may be useful in predicting where invasive species are likely to occur and become abundant and as a framework for applying management actions to control their spread. The frequencies with which 5 non-native and 1 native invasive species occurred and exceeded 15 percent cover were examined in relation to LCPI classes using existing data collected during multiple studies...
Categories: Data,
Publication;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Abutilon theophrasti,
Alliaria petiolata,
Flow-return interval,
Humulus japonicus,
Japanese hops,
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