Conference Papers
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
Filter Total Items: 5326
Molecular genetic insights into the biology of Trumpeter Swans
No abstract available.
Authors
Sara J. Oyler-McCance
Temporal and spatial distribution of landslides in the Redwood Creek Basin, Northern California
Mass movement processes are a dominant means of supplying sediment to mountainous rivers of north coastal California, but the episodic nature of landslides represents a challenge to interpreting patterns of slope instability. This study compares two major landslide events occurring in 1964-1975 and in 1997 in the Redwood Creek basin in north coastal California. In 1997, a moderate-intensity, long-
Authors
Mary Ann Madej
Energy and conservation benefits from managed prairie biomass
Marginally productive land, such as that enrolled in the Conservation Reserve Program (CRP), may provide acreage and economic incentives for cellulosic energy production. Improving the yields from these lands will help establish a biomass producer's position in the marketplace. The effects of water and nitrogen on biomass yields were investigated in both a plot-scale experiment and a broad-scale s
Authors
Jacob M. Jungers, Jared J. Trost, Clarence L. Lehman, David Tilman
An open-water electrical geophysical tool for mapping sub-seafloor heavy placer minerals in 3D and migrating hydrocarbon plumes in 4D
A towed-streamer technology has been developed for mapping placer heavy minerals and dispersed hydrocarbon plumes in the open ocean. The approach uses induced polarization (IP), an electrical measurement that encompasses several different surface-reactive capacitive and electrochemical phenomena, and thus is ideally suited for mapping dispersed or disseminated targets. The application is operated
Authors
Jefferey C. Wynn, Scott Urquhart, Mike Williamson, John B. Fleming
Landsat 8 on-orbit characterization and calibration system
The Landsat Data Continuity Mission (LDCM) is planning to launch the Landsat 8 satellite in December 2012, which continues an uninterrupted record of consistently calibrated globally acquired multispectral images of the Earth started in 1972. The satellite will carry two imaging sensors: the Operational Land Imager (OLI) and the Thermal Infrared Sensor (TIRS). The OLI will provide visible, near-in
Authors
Esad Micijevic, Ron Morfitt, Michael J. Choate
Weeds of Hawaii’s lands devoted to watershed protection and biodiversity conservation: Role of biological control as the missing piece in an integrated pest management strategy
Despite Hawaii’s reputation as an extinction icon, significant biological resources remain, especially in watersheds, natural areas, and specialized edaphic sites (e.g., lava dry forest, coastal). While direct habitat destruction by humans continues, human-facilitated biological invaders are currently the primary agents of continuing degradation. The ability of invasive plants to have prolific see
Authors
Arthur C. Medeiros, L.L. Loope
Estimating seismic site response in Christchurch City (New Zealand) from dense low-cost aftershock arrays
The Mw 7.1 September 2010 Darfield earthquake, New Zealand, produced widespread damage and liquefaction ~40 km from the epicentre in Christchurch city. It was followed by the even more destructive Mw 6.2 February 2011 Christchurch aftershock directly beneath the city’s southern suburbs. Seismic data recorded during the two large events suggest that site effects contributed to the variations in gro
Authors
Anna E. Kaiser, Rafael A. Benites, Angela Chung, A. John Haines, Elizabeth S. Cochran, Bill Fry
Bias estimation for the Landsat 8 operational land imager
The Operational Land Imager (OLI) is a pushbroom sensor that will be a part of the Landsat Data Continuity Mission (LDCM). This instrument is the latest in the line of Landsat imagers, and will continue to expand the archive of calibrated earth imagery. An important step in producing a calibrated image from instrument data is accurately accounting for the bias of the imaging detectors. Bias variab
Authors
Ron Morfitt, Kelly Vanderwerff
Exploration case study using indicator minerals in till at the giant Pebble porphyry Cu-Au-Mo deposit, southwest Alaska, USA
The Pebble deposit in southwest Alaska (Fig. 1) contains one of the largest resources of copper and gold in the world. It includes a measured and indicated resource of 5,942 million tonnes (Mt) at 0.42% Cu, 0.35 g/t Au, and 250 ppm Mo (0.30% copper equivalent, CuEQ, cut off) and contains significant concentrations of Ag, Pd, and Re (Northern Dynasty Minerals 2011). The deposit remains open at dept
Authors
Robert G. Eppinger, Karen D. Kelley, David L. Fey, Stuart A. Giles, Steven G. Smith
Fright reaction and avoidance induced by exposure to conspecific skin extracts in invasive bighead and silver carps
No abstract available.
Authors
Edward E. Little, Robin Calfee, David L. Fabacher, Laura Sanders
Human casualties in earthquakes: Modelling and mitigation
Earthquake risk modelling is needed for the planning of post-event emergency operations, for the development of insurance schemes, for the planning of mitigation measures in the existing building stock, and for the development of appropriate building regulations; in all of these applications estimates of casualty numbers are essential. But there are many questions about casualty estimation which a
Authors
R.J.S. Spence, E.K.M. So
Catfish spatial distribution in the free-flowing Mississippi River
No abstract available.
Authors
Leandro E. Miranda, K. Jack Kilgore