Conference Papers
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Landsat 7 on-orbit geometric calibration and performance Landsat 7 on-orbit geometric calibration and performance
The Landsat 7 Image Assessment System was developed to characterize and calibrate the radiometric and geometric performance of the Landsat 7 Enhanced Thematic Mapper Pius (ETM+) instrument. Algorithms and software assess the geometric performance of the Landsat 7 spacecraft and ETM+ sensor system and perform geometric calibration by estimating sensor and spacecraft geometric parameters...
Authors
James C. Storey, Mike Choate
Landsat 5/Landsat 7 underfly cross-calibration experiment Landsat 5/Landsat 7 underfly cross-calibration experiment
There was a one-time opportunity to obtain nearly coincident coverage from both Landsat 5 and Landsat 7 as Landsat 7 drifted to its final orbital position during the initialization and verification phase following launch. During the underfly period, Landsat 7 Enhanced Thematic Mapper Plus (ETM+) data were collected using the U.S Landsat 7 ground station network and the solid-state...
Authors
Grant R. Mah, James Vogelmann, Mike Choate
Landsat 7 processing on the EROS Data Center's National Land Archive Processing System (NLAPS) Landsat 7 processing on the EROS Data Center's National Land Archive Processing System (NLAPS)
Staff at the U.S. Geological Survey (USGS) EROS Data Center (EDC) process Landsat 7 data for customer distribution on two distinct systems. The Distributed Active Archive Center (DAAC) processing is done on the Level -1 Product Generation System (LPGS), and the USGS processing is completed on the National Land Archive Processing System (NLAPS). The NLAPS is capable of processing data...
Authors
Brenda Jones, LeAnn Dix
Mississippi Delta management systems evaluation area; insecticides in runoff, 1996-99 Mississippi Delta management systems evaluation area; insecticides in runoff, 1996-99
no abstract available.
Authors
L.M. Southwick, Richard A. Rebich, J.L. Fouss, Jeffery A. Ballweber
Recent planetary topographic mapping at the USGS, Flagstaff: Moon, Mars, Venus, and beyond Recent planetary topographic mapping at the USGS, Flagstaff: Moon, Mars, Venus, and beyond
We are currently using stereophotogrammetric techniques to compile digital topographic models of parts of the Moon, Mars, Venus, and the asteroid Eros in support of the NASA program of planetary exploration. This work requires the synergistic use of the USGS digital cartographic software system ISIS for data ingestion and calibration steps, along with the commercial software SOCET SET...
Authors
Randolph L. Kirk, Elpitha Howington-Kraus, Mark R. Rosiek
Ground truth; in-situ properties of hydrate Ground truth; in-situ properties of hydrate
No abstract available.
Authors
David S. Goldberg, Timothy S. Collett, Roy D. Hyndman, Michael D. Max
Digital elevation models derived from small format lunar images Digital elevation models derived from small format lunar images
No abstract available.
Authors
Mark R. Rosiek, Randolph L. Kirk, Elpitha Howington-Kraus
The land cover trends project: A strategy for monitoring land cover change at a national scale The land cover trends project: A strategy for monitoring land cover change at a national scale
Policy-makers and scientists often require comprehensive data on the types and rates of land use and land cover change at a variety of scales. However, there is generally a lack of local, regional, and national land use and land cover data of sufficient reliability and temporal and geographic detail for providing accurate estimates of landscape change. The U.S. Geological Survey's EROS...
Authors
Terry L. Sohl, Thomas Loveland, Kristi L. Sayler, Alisa L. Gallant, Roger F. Auch, Darrell E. Napton
Implications of celsian in the Ruby Mountains, Elko County, Nevada Implications of celsian in the Ruby Mountains, Elko County, Nevada
The Ba-feldspar celsian [BaAl2Si2O8] has been found in quartz-skarn-sulfide deposits at the American Beauty and Summit View Mines in the Ruby Mountains, Nevada. The celsian is present in quartz-skarn-polymetallic sulfide ores formed during Jurassic and Tertiary phases of skarn formation. Well-shaped microcrystals of celsian, along with sulfide minerals and apatite, fill cavities in...
Authors
Vladimir Berger, Ted G. Theodore, Richard M. Tosdal, Robert L. Oscarson
Oil–bearing rocks of the Davenport and Point Reyes areas and their implications for offset along the San Gregorio and northern San Andreas faults Oil–bearing rocks of the Davenport and Point Reyes areas and their implications for offset along the San Gregorio and northern San Andreas faults
No abstract available.
Authors
Richard G. Stanley, Paul G. Lillis
An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes
The accumulation and melting of mountain snowpacks are major drivers of ecosystem processes in the Rocky Mountains. These include the influence of snow water equivalent (SWE) timing and amount of release on soil moisture for annual tree growth, and alpine stream discharge and temperature that control aquatic biota life histories. Snowfall also brings with it atmospheric deposition...
Authors
Daniel Fagre, Kathy Tonnessen, Kristi Morris, George Ingersoll, Lisa McKeon, Karen Holzer
Current research efforts in decision support system technology as applied to trumpeter swan management Current research efforts in decision support system technology as applied to trumpeter swan management
No abstract available.
Authors
Richard S. Sojda, J.E. Cornely, L. H. Fredrickson, A.E. Howe