Conference Papers
Science Quality and Integrity
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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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Assessment of the short-term radiometric stability between Terra MODIS and Landsat 7 ETM+ sensors
Short-term radiometric stability was evaluated using continuous ETM+ scenes within a single orbit (contact period) and the corresponding MODIS scenes for the four matching solar reflective visible and near-infrared (VNIR) band pairs between the two sensors. The near-simultaneous earth observations were limited by the smaller swath size of ETM+ (183 km) compared to MODIS (2330 km). Two sets of cont
Authors
Taeyoung Choi, Xiaoxiong Xiong, Gyanesh Chander, A. Angal
Forest and forestry insect pests in Hawaii: past, present, and future
No abstract available.
Authors
Patrick Contant, Robert Hauff, Lloyd Loope, Cynthia King
Protecting Hawaii's forests from harm: an argument for strong measures to prevent arrival of pests of Hawaii's Myrtle family
No abstract available.
Authors
Lloyd Loope, Anne Marie La Rosa
Acid neutralizing capacity and leachate results for igneous rocks, with associated carbon contents of derived soils, Animas River AML site, Silverton, Colorado
Mine planning efforts have historically overlooked the possible acid neutralizing capacity (ANC) that local igneous rocks can provide to help neutralize acidmine drainage. As a result, limestone has been traditionally hauled to mine sites for use in neutralizing acid drainage. Local igneous rocks, when used as part of mine life-cycle planning and acid mitigation strategy, may reduce the need to tr
Authors
Douglas B. Yager, Mark R. Stanton, LaDonna M. Choate, Burchell
An orientation soil survey at the Pebble Cu-Au-Mo porphyry deposit, Alaska
Soil samples were collected in 2007 and 2008 along three traverses across the giant Pebble Cu-Au-Mo porphyry deposit. Within each soil pit, four subsamples were collected following recommended protocols for each of ten commonly-used and proprietary leach/digestion techniques. The significance of geochemical patterns generated by these techniques was classified by visual inspection of plots showing
Authors
Steven M. Smith, Robert G. Eppinger, David L. Fey, Karen D. Kelley, S. A. Giles
A Bayesian approach to identifying and tracking damage in structures
No abstract available.
Authors
J.M. Nichols, William A. Link, K.D. Murphy, C.C. Olson, F. Bucholtz, J.V. Michalowicz
The application of induced polarization techniques to detect metal-bearing offshore anthropogenic waste and unexploded ordnance
Raw sewage and industrial waste have been dumped into sensitive estuaries, bays, and sounds for centuries. The full extents of the resulting sludge deposits are largely unknown, because they move in response to tidal and long‐shore currents, and because they are often buried by younger inert sediments. USGS field and laboratory measurements of toxic mine waste and organic effluent samples suggest
Authors
Jeff Wynn, William Roberts
Surface deformation analysis of the Mauna Loa and Kīlauea volcanoes, Hawai‘i, based on InSAR displacement time series
We investigate the deformation of Mauna Loa and Kilauea volcanoes, Hawai`i, by exploiting the advanced differential Synthetic Aperture Radar Interferometry (InSAR) technique referred to as the Small BAseline Subset (SBAS) algorithm. In particular, we present time series of line-of-sight (LOS) displacements derived from SAR data acquired by the ASAR instrument, on board the ENVISAT satellite, from
Authors
F. Casu, G. Solaro, Pietro Tizzani, Michael P. Poland, Asta Miklius, Eugenio Sansosti, Riccardo Lanari
New substorm index derived from high-resolution geomagnetic field data at low latitude and its comparison with AE and ASY indices
High-resolution geomagnetic field data (i.e., ≤5 seconds) have recently become more commonly used by space physicists. The data permit the identification of Pi2 pulsations, having periods of 40-150 seconds and irregular waveforms. Pulsations of this type appear clearly in time series from mid- and low-latitude ground stations on the nightside at substorm onset. Therefore, with data from multiple o
Authors
M. Nose, T. Iyemori, M. Takeda, H. Toh, T. Ookawa, G. Cifuentes-Nava, J. Matzka, Jeffrey J. Love, H. McCreadie, M. K. Tunçer, J. J. Curto
Absolute Measurement Session XIII IAGA Workshop Boulder Magnetic Observatory
The absolute measurement session of the XIII IAGA Workshop was held at the Boulder Magnetic Observatory June 10-13, 2008. Approximately 85 people attended this session. The main focus of the session was for observers to make and compare measurements using DIFlux magnetometers. The session also included absolute measurement training, with lectures and practical training. Also included were data pro
Authors
A. Berarducci, Andy Woods
IPANE: Could New England's Early Detection Network benefit eastern Canada?
The Invasive Plant Analysis of New England (IPANE: ipane.org) is a multifaceted approach to regional early detection of invasive plants. IPANE, was founded in 2001 to create a comprehensive six state New England regional partnership to: minimize the ecological damage caused by invasive plants; provide reliable and accessible educational material; maintain a network of professional and trained volu
Authors
Les Mehrhoff, Randy G. Westbrooks
Total field sensor comparison
During the XIIIth IAGA Workshop (hereafter referred to as “the workshop"), several total field comparison measurements were conducted at the Boulder Magnetic Observatory (BOU). The purpose of these tests was to look for errors within the total field instruments which are considered “absolutes” instruments. The total field measurement is a critical component of the absolute measurement computation.
Authors
Tim White