Conference Papers
Science Quality and Integrity
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Ground settlement monitoring from temporarily persistent scatterers between two SAR acquisitions
We present an improved differential interferometric synthetic aperture radar (DInSAR) analysis method that measures motions of scatterers whose phases are stable between two SAR acquisitions. Such scatterers are referred to as temporarily persistent scatterers (TPS) for simplicity. Unlike the persistent scatterer InSAR (PS-InSAR) method that relies on a time-series of interferograms, the new algor
Authors
Z. Lei, D. Xiaoli, F. Guangcai, L. Zhong
High resolution near-bed observations in winter near Cape Hatteras, North Carolina
The U.S. Geological Survey (USGS) Coastal and Marine Science Center in Woods Hole, Massachusetts, is leading an effort to understand the regional sediment dynamics along the coastline of North and South Carolina. As part of the Carolinas Coastal Change Processes Project, a geologic framework study in June of 2008 by the Woods Hole Coastal and Marine Science Center's Sea Floor Mapping Group focused
Authors
M. Martini, B. Armstrong, J.C. Warner
Historical abundance and morphology of Didymosphenia species in Naknek Lake, Alaska
Since the 1980s, nuisance blooms of Didymosphenia geminata (Lyngbye) M. Schmidt have been documented in sites that are warmer and more mesotrophic than historical records indicate. While the invasion of D. geminata in New Zealand is well documented, it is less clear whether nuisance blooms in North America are a new phenomenon. In order to test the hypothesis that D. geminata blooms have increased
Authors
D.P. Pite, K.A. Lane, A.K. Hermann, S. A. Spaulding, B. P. Finney
HRSC: High resolution stereo camera
The High Resolution Stereo Camera (HRSC) on Mars Express has delivered a wealth of image data, amounting to over 2.5 TB from the start of the mapping phase in January 2004 to September 2008. In that time, more than a third of Mars was covered at a resolution of 10-20 m/pixel in stereo and colour. After five years in orbit, HRSC is still in excellent shape, and it could continue to operate for many
Authors
G. Neukum, R. Jaumann, A.T. Basilevsky, A. Dumke, S. Van Gasselt, B. Giese, E. Hauber, J. W. Head, C. Heipke, N. Hoekzema, H. Hoffmann, R. Greeley, K. Gwinner, R. Kirk, W. Markiewicz, T. B. McCord, G. Michael, Jan-Peter Muller, J.B. Murray, J. Oberst, P. Pinet, R. Pischel, T. Roatsch, F. Scholten, K. Willner
Improving accessibility to geospatial data using geographic search
[No abstract available]
Authors
J.E. Williams, M.L. Allison, J.B. Kozman
In-Flight performance of MESSENGER's Mercury dual imaging system
The Mercury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, launched in August 2004 and planned for insertion into orbit around Mercury in 2011, has already completed two flybys of the innermost planet. The Mercury Dual Imaging System (MDIS) acquired nearly 2500 images from the first two flybys and viewed portions of Mercury's surface not viewed by Mariner 10 in 1974-
Authors
S.E. Hawkins, S.L. Murchie, K.J. Becker, C.M. Selby, F.S. Turner, M.W. Noble, N.L. Chabot, T.H. Choo, E.H. Darlington, B.W. Denevi, D.L. Domingue, C.M. Ernst, G.M. Holsclaw, N.R. Laslo, W.E. Mcclintock, L.M. Prockter, M.S. Robinson, S.C. Solomon, R.E. Sterner
Integrating geodetic and geologic data in maps of seismic hazard
[No abstract available]
Authors
R. Briggs, W. Hammond
Integrating GIS-based geologic mapping, LiDAR-based lineament analysis and site specific rock slope data to delineate a zone of existing and potential rock slope instability located along the grandfather mountain window-Linville Falls shear zone contact,
Landslide hazard maps of Watauga County identify >2200 landslides, model debris flow susceptibility, and evaluate a 14km x 0.5km zone of existing and potential rock slope instability (ZEPRSI) near the Town of Boone. The ZEPRSI encompasses west-northwest trending (WNWT) topographic ridges where 14 active/past-active rock/weathered rock slides occur mainly in rocks of the Grandfather Mountain Window
Authors
K.A. Gillon, R.M. Wooten, R.L. Latham, A.W. Witt, T.J. Douglas, J.B. Bauer, S.J. Fuemmeler
Integrating terrestrial LiDAR and stereo photogrammetry to map the Tolay lakebed in northern San Francisco Bay
The Tolay Creek Watershed drains approximately 3,520 ha along the northern edge of San Francisco Bay. Surrounded by a mosaic of open space conservation easements and public wildlife areas, it is one of the only watersheds in this urbanized estuary that is protected from its headwaters to the bay. Tolay Lake is a seasonal, spring-fed lake found in the upper watershed that historically extended over
Authors
Isa Woo, Storesund, John Y. Takekawa, Rachel J. Gardiner, Ehret
Investigating aquatic ecosystems of small lakes in Khorezm, Uzbekistan
The Khorezm province of Uzbekistan, located in the Aral Sea Basin, suffers from severe environmental and human health problems due to decades of unsustainable land and water management. Agriculture is the dominant land use in Khorezm, and agricultural runoff water has impacted many small lakes. In this water-scarce region, these lakes may provide a water source for irrigation or fish production. S
Authors
L. Saito, J. Scott, M. Rosen, Bakhriddin Nishonov, S. Chandra, John P.A. Lamers, Dilorom Fayzieva, M. Shanafield
Land 3D-seismic data: Preprocessing quality control utilizing survey design specifications, noise properties, normal moveout, first breaks, and offset
The recent proliferation of the 3D reflection seismic method into the near-surface area of geophysical applications, especially in response to the emergence of the need to comprehensively characterize and monitor near-surface carbon dioxide sequestration in shallow saline aquifers around the world, justifies the emphasis on cost-effective and robust quality control and assurance (QC/QA) workflow o
Authors
A. Raef
Mathematical modelling of anisotropy of illite-rich shale
The estimation of illite-rich shale anisotropy to account for the alignment of clays and gas- or brine-filled cracks is presented via mathematical modelling. Such estimation requires analysis to interpret the dominance of one effect over another. This knowledge can help to evaluate the permeability in the unconventional reservoir, stress orientation, and the seal capacity for the conventional rese
Authors
E.M. Chesnokov, D.K. Tiwary, I.O. Bayuk, M.A. Sparkman, R.L. Brown