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Publication Extents

Not all publications have extents, not all extents are completely accurate
Reducing Vulnerability of Ports and Harbors to Earthquake and Tsunami Hazards
Nathan J. Wood, James W. Good, Robert F. Goodwin
2002, Conference Paper, Coastal Disasters Conference 2002
Recent scientific research suggests the Pacific Northwest could experience catastrophic earthquakes in the near future, both from distant and local sources, posing a significant threat to coastal communities. Damage could result from numerous earthquake-related hazards, such as severe ground shaking, soil liquefaction, landslides, land subsidence/uplift, and tsunami inundation. Because of...
The global transport of dust: An intercontinental river of dust, microorganisms and toxic chemicals flows through the Earth's atmosphere
Dale Griffin, Christina Kellogg, Virginia Garrison, Eugene Shinn
2002, American Scientist (90) 228-235
The coral reefs in the Caribbean have been deteriorating since the 1970s, and no one is quite sure why. Such environmental devastation is usually blamed on Homo sapiens, but that doesn’t seem to be what’s going on here. Recently, some scientists at the USGS think they’ve solved the puzzle: Bacteria...
A fresh look at glacial floods
Steve M. Colman
2002, Science (296) 1251-1252
We tend to think of continental-scale ice sheets as rather ponderous affairs, inexorably advancing southward over the landscape and then slowly retreating to the north at the end of each ice age. Over the last 20 years, however, evidence has accumulated that this is a misconception. We now know that...
Dinosaurs that did not die: Evidence for Paleocene dinosaurs in the Ojo Alamo Sandstone, San Juan Basin, New Mexico
James E. Fassett, Robert A. Zielinski, James R. Budahn
2002, GSA Special Papers (356) 307-336
Palynologic and paleomagnetic data confirm a Paleocene age for the Ojo Alamo Sandstone (and its contained dinosaurs) throughout the San Juan Basin of New Mexico. The recently reported discovery of 34 skeletal elements from a single hadrosaur in the Ojo Alamo provides unequivocal evidence that these bones were not reworked...
Ongoing research experiments at the former Soviet nuclear test site in eastern Kazakhstan
William S. Leith, Luke J. Kluchko, Vladimir Konovalov, Gerard Vouille
2002, Conference Paper
Degelen mountain, located in EasternKazakhstan near the city of Semipalatinsk, was once the Soviets most active underground nuclear test site. Two hundred fifteen nuclear tests were conducted in 181 tunnels driven horizontally into its many ridges--almost twice the number of tests as at any...
Palynology and microstratigraphy of Cretaceous-Tertiary boundary sections in southwestern North Dakota
Douglas J. Nichols, K.R. Johnson
2002, Geological Society of America Special Papers (361) 95-143
Palynology is used to bracket or pinpoint the Cretaceous-Tertiary (K-T) boundary in 17 measured sections near the contact of the Hell Creek Formation and the Ludlow Member of the Fort Union Formation in southwestern North Dakota. Palynostratigraphy is the most reliable method for locating the K-T extinction horizon - which defines the K-T boundary - in nonmarine rocks. The palynological database includes 110 taxa for which...
Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota
Dean Pearson, Terry Schaeffer, Kirk R. Johnson, Douglas J. Nichols, John P. Hunter
2002, Geological Society of America Special Papers (361) 145-167
Field surveys of the Upper Cretaceous Hell Creek Formation in southwestern North Dakota since 1986 have produced a total of 10124 specimens from 42 vertebrate microsites and an additional 41 dinosaur skulls or partial skeletons or skulls from separate sites representing 61 taxa of vertebrates dominated by fish, dinosaurs, turtles, and crocodilians. Common elements of this diverse fauna occur to...
U.S. Geological Survey spatial data access
John Faundeen, Ronald L. Kanengieter, Michael D. Buswell
2002, Journal of Geospatial Engineering (4) 145-152
The U.S. Geological Survey (USGS) has done a progress review on improving access to its spatial data holdings over the Web. The USGS EROS Data Center has created three major Web-based interfaces to deliver spatial data to the general public; they are Earth Explorer, the Seamless Data Distribution System (SDDS),...
Unique U.S. magnetic anomaly data base forthcoming
Thomas G. Hildenbrand, William J. Hinze, G. Randy Keller, Victor F. Labson, Walter Roest
2002, Eos Science News (83) 576
The year 2004 will offer an exciting and cost-effective opportunity to acquire a new U.S. magnetic anomaly data base. High Altitude Mapping Missions Inc. (HAMM) is currently planning an airborne mission to collect high-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery at an altitude of about 15 km, with a flight-line...
Application of GIS for assessing human vulnerability to cyclone in India
M. Nazmul Hossain, Ashbindu Singh
2002, Conference Paper, 2002 User conference proceedings
This paper presents the use of GIS to assess human vulnerability due to cyclonic storm in India. Human vulnerability is conceptualized here as the exposure to hazard by external activity (e.g. cyclone) and coping capacity of the people to reduce the risk. The assessment looks at the potential exposure to...
A flood early warning system for southern Africa
Guleid A. Artan, Miguel Restrepo, Kwabena Asante, James Verdin
2002, Conference Paper, Integrated remote sensing at the global, regional, and local scale
Sizeable areas of the Southern African Region experienced widespread flooding in 2000. Deployment of hydrologic models can help reduce the human and economic losses in the regions by providing improved monitoring and forecast information to guide relief activities. In this study, we describe a hydrologic model developed for wide-area flood...
Methods and tools for the development of hydrologically conditioned elevation data and derivatives for national applications
Jay R. Kost, Kristine L. Verdin, Bruce B. Worstell, Glenn G. Kelly
2002, Conference Paper, Hydrologic modeling for the 21st Century, Second Federal Interagency Hydrologic Modeling Conference
The National Elevation Dataset (NED) contains the best publicly available elevation data merged into a seamless dataset for the entire United States. In some cases these data contain unwanted artifacts, limiting the quality of standard hydrologic derivatives. The Elevation Derivatives for National Applications (EDNA) project is an interagency effort...
Arthropods in decomposing wood of the Atchafalaya River basin
B. Graeme Lockaby, B. D. Keeland, J.A. Stanturf, M. D. Rice, R. M. Governo
2002, Southeastern Naturalist (1) 339-352
Changes in arthropod populations (numbers of individuals identified to the family level in most cases) were studied during the decomposition of coarse woody debris (CWD) in the Atchafalaya River Basin of Louisiana. The arthropod study was linked with a CWD decomposition study installed after disturbance by Hurricane Andrew. Arthropod numbers...
Development of a circa 2000 land cover database for the United States
Collin G. Homer, Chengquan Huang, Limin Yang, Bruce Wylie
2002, Conference Paper
Multi-Resolution Land Characterization 2000 (MRLC 2000) is a second-generation federal consortium to create an updated pool of nation-wide Landsat 7 imagery, and derive a second-generation National Land Cover Database (NLCD 2000). This multi-layer, multisource database will include a suite of 30-meter resolution data that will serve as standardized ingredients for...
Synergistic use of FIA plot data and Landsat 7 ETM+ images for large area forest mapping
Chengquan Huang, Limin Yang, Collin G. Homer, Michael Coan, Russell P. Rykhus, Zheng Zhang, Bruce Wylie, K. Hegge, Zhiliang Zhu, Andrew Lister, Michael Hoppus, Ronald Tymcio, Larry DeBlander, William Cooke, Ronald McRoberts, Daniel Wendt, Dale Weyermann
2002, General Technical Report NC-230
FIA plot data were used to assist in classifying forest land cover from Landsat imagery and relevant ancillary data in two regions of the U.S.: one around the Chesapeake Bay area and the other around Utah. The overall accuracies for the forest/nonforest classification were over 90 percent and about 80...
Application of decision-tree techniques to forest group and basal area mapping using satellite imagery and forest inventory data
George Z. Xian, Zhiliang Zhu, Michael Hoppus, Michael Fleming
2002, Conference Paper, Integrated remote sensing at the global, regional, and local scale
Accurate, current, and cost-effective fire fuel data are required by management and fire science communities for use in reducing wildland fire hazards over large areas. In this paper we present results of applying decision-tree techniques to mapping vegetation parameters (such as vegetation types and canopy structure classification) required for fire...
Plumes, or plate tectonic processes?
G.R. Foulger
2002, Astronomy and Geophysics (43) 6.19-6.23
Hotspots – large volcanic provinces – such as Iceland, Hawaii and Yellowstone, are almost universally assumed to come from plumes of hot mantle rising from deep within the Earth. At Iceland, perhaps the best-studied hotspot on Earth, this hypothesis is inconsistent with many first-order observations, such as the lack of...
Tabulation of asbestos-related terminology
Heather Lowers, Greg Meeker
2002, Open-File Report 2002-458
The term asbestos has been defined in numerous publications including many State and Federal regulations. The definition of asbestos often varies depending on the source or publication in which it is used. Differences in definitions also exist for the asbestos-related terms acicular, asbestiform, cleavage, cleavage fragment, fiber, fibril, fibrous, and...