Publications
Publications related to National Cooperative Geologic Mapping Program and its Components.
Filter Total Items: 167
The Portland Basin: A (big) river runs through it
Metropolitan Portland, Oregon, USA, lies within a small Neogene to Holocene basin in the forearc of the Cascadia subduction system. Although the basin owes its existence and structural development to its convergent-margin tectonic setting, the stratigraphic architecture of basin-fill deposits chiefly reflects its physiographic position along the lower reaches of the continental-scale Columbia Rive
Authors
Russell C. Evarts, Jim E. O'Connor, Ray E. Wells, Ian P. Madin
By
Energy and Minerals Mission Area, Water Resources Mission Area, Energy Resources Program, Groundwater and Streamflow Information Program, Mineral Resources Program, National Cooperative Geologic Mapping Program, National Laboratories Program, Science and Decisions Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center, Oregon Water Science Center
An integrated geophysical approach for groundwater and seismic hazard management in Joshua Tree National Park, southern California
Two‐dimensional inversion of audiomagnetotelluric (AMT) sounding data define buried resistivity distributions that reflect subsurface geology and structure within the upper kilometer beneath Pleasant Valley, a 1–2 km‐deep pull‐apart basin in Joshua Tree National Park, southern California. The Park lies within the Eastern California Shear Zone just east of the San Andreas Fault, and is surrounded b
Authors
Darcy McPhee, Victoria E. Langenheim, Bruce A. Chuchel, Louise Pellerin
EAARL coastal topography– Northeast barrier islands 2007: Bare earth
These remotely sensed, geographically referenced elevation measurements of Lidar-derived bare earth (BE) topography were produced collaboratively by the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA.
This project provides highly detailed and accurate datasets
Authors
Amar Nayegandhi, John Brock, A. H. Sallenger, C. Wayne Wright, Xan Yates, Jamie M. Bonisteel
EAARL topography - Natchez Trace Parkway 2007: First surface
These remotely sensed, geographically referenced elevation measurements of Lidar-derived first surface (FS) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Gulf Coast Network, Lafayette, LA; and the National Aeronautics and Space Administration (NASA), Wallop
Authors
Amar Nayegandhi, John Brock, C. Wayne Wright, Martha Segura, Xan Yates
EAARL coastal topography — Fire Island National Seashore 2007
These remotely sensed, geographically referenced elevation measurements of Lidar-derived first surface (FS) and bare earth (BE) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Northeast Coastal and Barrier Network, Kingston, RI; and the National Aeronautics a
Authors
Amar Nayegandhi, John Brock, C. Wayne Wright, Sara Stevens, Xan Yates, Jamie M. Bonisteel
EAARL topography - Vicksburg National Military Park 2008: Bare earth
These remotely sensed, geographically referenced elevation measurements of Lidar-derived bare earth (BE) topography were produced as a collaborative effort between the U.S. Geological Survey (USGS), Florida Integrated Science Center (FISC), St. Petersburg, FL; the National Park Service (NPS), Gulf Coast Network, Lafayette, LA; and the National Aeronautics and Space Administration (NASA), Wallops F
Authors
Amar Nayegandhi, John Brock, C. Wayne Wright, Martha Segura, Xan Yates
Evaluating a small footprint, waveform-resolving lidar over coastal vegetation communities
NASA’s Experimental Advanced Airborne Research Lidar (EAARL) is a raster-scanning, waveform-resolving, green-wavelength (532 nm) lidar designed to map near-shore bathymetry, topography, and vegetation structure simultaneously. The EAARL sensor records the time history of the return waveform within a small footprint (20 cm diameter) for each laser pulse, enabling characterization of vegetation cano
Authors
Amar Nayegandhi, John Brock, C. Wayne Wright, M. J. O'Connell
EAARL topography: Dry Tortugas National Park
This lidar-derived submarine topography map was produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, National Park Service (NPS) South Florida/Caribbean Network Inventory and Monitoring Program, and the National Aeronautics and Space Administration (NASA) Wallops Flight Facility. One objective of this research is to create techniques to s
Authors
John Brock, C. Wayne Wright, Matt Patterson, Amar Nayegandhi, Judd Patterson
Prospects for quantifying structure, floristic composition and species richness of tropical forests
Airborne spectral and light detection and ranging (lidar) sensors have been used to quantify biophysical characteristics of tropical forests. Lidar sensors have provided high-resolution data on forest height, canopy topography, volume, and gap size; and provided estimates on number of strata in a forest, successional status of forests, and above-ground biomass. Spectral sensors have provided data
Authors
T.W. Gillespie, J. Brock, C. W. Wright
Geologic map and database of the Salem East and Turner 7.5 minute quadrangles, Marion County, Oregon: A digital database
The Salem East and Turner 7.5-minute quadrangles are situated in the center of the Willamette Valley near the western margin of the Columbia River Basalt Group (CRBG) distribution. The terrain within the area is of low to moderate relief, ranging from about 150 to almost 1,100-ft elevation. Mill Creek flows northward from the Stayton basin (Turner quadrangle) to the northern Willamette Valley (Sal
Authors
Terry L. Tolan, Marvin H. Beeson, Christopher B. DuRoss
Using regional geologic information to assess relative aquifer contamination potential– An example from the central United States
No abstract available.
Authors
David R. Soller, Richard Berg