Mount Rainier National Park and Olympic National Park Elk Monitoring Program Annual Report 2010
Paul Griffin, Patricia J. Happe, Kurt J. Jenkins, Mason Reid, David J. Vales, Barbara J. Moeller, Michelle Tirhi, Scott McCorquodale, Pat Miller
2010, Natural Resource Data Series 2011/289
Fiscal year 2010 was the third year of gathering data needed for protocol development while simultaneously implementing what is expected to be the elk monitoring protocol at Mount Rainier (MORA) and Olympic (OLYM) national parks in the North Coast and Cascades Network (NCCN). Elk monitoring in these large wilderness parks...
Development of inferential sensors for real-time quality control of water-level data for the Everglades Depth Estimation Network
Ruby C. Daamen, Jr. Edwin A. Roehl, Paul Conrads
2010, Conference Paper
The Everglades Depth Estimation Network (EDEN) is an integrated network of real-time water-level gaging stations, ground-elevation models, and watersurface models designed to provide scientists, engineers, and water-resource managers with current (2000-present) water-depth information for the entire freshwater portion of the greater Everglades. The generation of EDEN waterlevel surfaces is derived...
Pliocene climate
Harry J. Dowsett, R. P. Caballero-Gill
2010, Stratigraphy (7) 106-110
The Pliocene Epoch, 5.3 Ma to 1.8 Ma, was a time when paleoclimate conditions ranged from very warm, equable climates (on a global scale), rhythmically varying every 40,000 years, to high-amplitude glacial-interglacial cycles that led to the “Ice Ages” of the Pleistocene. Evidence for paleoclimate conditions comes from fossils, geochemical...
Development of a national, dynamic reservoir-sedimentation database
J. R. Gray, J.M. Bernard, D. W. Stewart, E.J. McFaul, K.W. Laurent, G. E. Schwarz, J.T. Stinson, M.M. Jonas, T. J. Randle, J.W. Webb
2010, Conference Paper, Proceedings of the Joint Federal Interagency Conference 2010: Hydrology and Sedimentation for a Changing Future: Existing and Emerging Issues: Las Vegas, NV, June 27-July 1, 2010
The importance of dependable, long-term water supplies, coupled with the need to quantify rates of capacity loss of the Nation’s re servoirs due to sediment deposition, were the most compelling reasons for developing the REServoir- SEDimentation survey information (RESSED) database and website. Created under the auspices of the Advisory Committee...
Landscape indicators and land cover change in the Mid-Atlantic Region of the United States, 1973-2001
E. Terrence Slonecker, Lesley Milheim, Peter R. Claggett
2010, GIScience and Remote Sensing (47) 163-186
Landscape indicators, derived from land use and land cover data as well as other data, were used to calculate the ecological consequences of land cover change in terms of nitrate loading and physical bird habitat. Both were modeled from 1973, 1992, and 2001 land cover data...
HIMALA: climate impacts on glaciers, snow, and hydrology in the Himalayan region
Molly Elizabeth Brown, Hua Ouyang, Shahid Habib, Basanta Shrestha, Mandira Shrestha, Prajjwal Panday, Maria Tzortziou, Frederick Policelli, Guleid A. Artan, Amarnath Giriraj, Sagar R. Bajracharya, Adina Racoviteanu
2010, Mountain Research and Development (30) 401-404
Glaciers are the largest reservoir of freshwater on Earth, supporting one third of the world's population. The Himalaya possess one of the largest resources of snow and ice, which act as a freshwater reservoir for more than 1.3 billion people. This article describes a new project called HIMALA, which focuses...
A model for Iapetan rifting of Laurentia based on Neoproterozoic dikes and related rocks
William C. Burton, Scott Southworth
2010, GSA Memoirs (206) 455-476
Geologic evidence of the Neoproterozoic rifting of Laurentia during breakup of Rodinia is recorded in basement massifs of the cratonic margin by dike swarms, volcanic and plutonic rocks, and rift-related clastic sedimentary sequences. The spatial and temporal distribution of these geologic features varies both within and between the massifs but...
Viscoelastic-cycle model of interseismic deformation in the northwestern United States
F. F. Pollitz, Patricia McCrory, Doug Wilson, Jerry Svarc, Christine Puskas, Robert B. Smith
2010, Geophysical Journal International (181) 665-696
We apply a viscoelastic cycle model to a compilation of GPS velocity fields in order to address the kinematics of deformation in the northwestern United States. A viscoelastic cycle model accounts for time-dependent deformation following large crustal earthquakes and is an alternative to block models for explaining the interseismic crustal...
Analytical models for the groundwater tidal prism and associated benthic water flux
Jeffrey N. King, Ashish J. Mehta, Robert G. Dean
2010, Hydrogeology Journal (18) 203-215
The groundwater tidal prism is defined as the volume of water that inundates a porous medium, forced by one tidal oscillation in surface water. The pressure gradient that generates the prism acts on the subterranean estuary. Analytical models for the groundwater tidal prism and associated benthic flux are presented. The...
Making lidar more photogenic: creating band combinations from lidar information
Jason M. Stoker
2010, Photogrammetric Engineering and Remote Sensing (76) 216-220
Over the past five to ten years the use and applicability of light detection and ranging (lidar) technology has increased dramatically. As a result, an almost exponential amount of lidar data is being collected across the country for a wide range of applications, and it is currently the technology of...
Emerging themes in the ecology and management of North American forests
Terry L. Sharik, William Adair, Fred A. Baker, Michael Battaglia, Emily J. Comfort, Anthony W. D’Amato, Craig Delong, R. Justin DeRose, Mark J. Ducey, Mark Harmon, Louise Levy, Jesse A. Logan, Joseph O'Brien, Brian J. Palik, Scott D. Roberts, Paul C. Rogers, Douglas J. Shinneman, Thomas Spies, Sarah L. Taylor, Christopher Woodall, Andrew Youngblood
2010, International Journal of Forestry Research (2010)
The 7th North American Forest Ecology Workshop, consisting of 149 presentations in 16 oral sessions and a poster session, reflected a broad range of topical areas currently under investigation in forest ecology and management. There was an overarching emphasis on the role of disturbance, both natural and anthropogenic, in the...
Model-based evaluation of highly and low pathogenic avian influenza dynamics in wild birds
Viviane Hénaux, Michael D. Samuel, Christine M. Bunck
2010, PLoS ONE (5)
There is growing interest in avian influenza (AI) epidemiology to predict disease risk in wild and domestic birds, and prevent transmission to humans. However, understanding the epidemic dynamics of highly pathogenic (HPAI) viruses remains challenging because they have rarely been detected in wild birds. We used modeling to integrate available...
Testing mixing models of old and young groundwater in a tropical lowland rain forest with environmental tracers
D. Kip Solomon, David P. Genereux, Niel Plummer, Eurybiades Busenberg
2010, Water Resources Research (46)
We tested three models of mixing between old interbasin groundwater flow (IGF) and young, locally derived groundwater in a lowland rain forest in Costa Rica using a large suite of environmental tracers. We focus on the young fraction of water using the transient tracers CFC‐11, CFC‐12, CFC‐113, SF6, 3H, and bomb 14C....
Estimating the timing and location of shallow rainfall-induced landslides using a model for transient, unsaturated infiltration
Rex L. Baum, Jonathan W. Godt, William Z. Savage
2010, Journal of Geophysical Research F: Earth Surface (115)
Shallow rainfall-induced landslides commonly occur under conditions of transient infiltration into initially unsaturated soils. In an effort to predict the timing and location of such landslides, we developed a model of the infiltration process using a two-layer system that consists of an unsaturated zone above a saturated zone and implemented...
Aviation response to a widely dispersed volcanic ash and gas cloud from the August 2008 eruption of Kasatochi, Alaska, USA
Marianne Guffanti, David J. Schneider, Kristi L. Wallace, Tony Hall, Dov R. Bensimon, Leonard J. Salinas
2010, Journal of Geophysical Research D: Atmospheres (115)
The extensive volcanic cloud from Kasatochi's 2008 eruption caused widespread disruptions to aviation operations along Pacific oceanic, Canadian, and U.S. air routes. Based on aviation hazard warnings issued by the National Oceanic and Atmospheric Administration, U.S. Geological Survey, the Federal Aviation Administration, and Meteorological Service of Canada, air carriers largely...
Inference of lithologic distributions in an alluvial aquifer using airborne transient electromagnetic surveys
Jesse E. Dickinson, D. R. Pool, R.W. Groom, L.J. Davis
2010, Geophysics (75) WA149-WA161
An airborne transient electromagnetic (TEM) survey was completed in the Upper San Pedro Basin in southeastern Arizona to map resistivity distributions within the alluvial aquifer. This investigation evaluated the utility of 1D vertical resistivity models of the TEM data to infer lithologic distributions in an alluvial aquifer. Comparisons of the...
A proposed lexicon of terms and concepts for human-bear management in North America
John B. Hopkins III, Stephen Herrero, Richard T. Shideler, Kerry A. Gunther, Charles C. Schwartz, Steven T. Kalinowski
2010, Ursus (21) 154-168
We believe that communication within and among agency personnel in the United States and Canada about the successes and failures of their human–bear (Ursidae) management programs will increase the effectiveness of these programs and of bear research. To communicate more effectively, we suggest agencies clearly define terms and concepts used...
Influence of hummocks and emergent vegetation on hydraulic performance in a surface flow wastewater treatment wetland
Steffanie H. Keefe, Joan S. Daniels, Robert L. Runkel, Roland D. Wass, Eric A. Stiles, Larry B. Barber
2010, Water Resources Research (46)
A series of tracer experiments were conducted biannually at the start and end of the vegetation growing season in a surface flow wastewater treatment wetland located near Phoenix, AZ. Tracer experiments were conducted prior to and following reconfiguration and replanting of a 1.2 ha treatment wetland from its original design...
Predicting future changes in Muskegon River Watershed game fish distributions under future land cover alteration and climate change scenarios
Paul J. Steen, Michael J. Wiley, Jeffrey S. Schaeffer
2010, Transactions of the American Fisheries Society (139) 396-412
Future alterations in land cover and climate are likely to cause substantial changes in the ranges of fish species. Predictive distribution models are an important tool for assessing the probability that these changes will cause increases or decreases in or the extirpation of species. Classification tree models that predict the...
Precise tremor source locations and amplitude variations along the lower-crustal central San Andreas Fault
David R. Shelly, Jeanne L. Hardebeck
2010, Geophysical Research Letters (37)
We precisely locate 88 tremor families along the central San Andreas Fault using a 3D velocity model and numerous P and S wave arrival times estimated from seismogram stacks of up to 400 events per tremor family. Maximum tremor amplitudes vary along the fault by at least a factor of...
230Th/U dating of a late Pleistocene alluvial fan along the southern San Andreas fault
Kathryn E.K. Fletcher, Warren D. Sharp, Katherine J. Kendrick, Whitney M. Behr, Kenneth W. Hudnut, Thomas C. Hanks
2010, GSA Bulletin (122) 1347-1359
U-series dating of pedogenic carbonate-clast coatings provides a reliable, precise minimum age of 45.1 ± 0.6 ka (2σ) for the T2 geomorphic surface of the Biskra Palms alluvial fan, Coachella Valley, California. Concordant ages for multiple subsamples from individual carbonate coatings provide evidence that the 238U-234U-230Th system has remained closed...
Low-altitude aerial color digital photographic survey of the San Andreas Fault
David K. Lynch, Kenneth W. Hudnut, David S.P. Dearborn
2010, Seismological Research Letters (81) 453-459
Ever since 1858, when Gaspard-Félix Tournachon (pen name Félix Nadar) took the first aerial photograph (Professional Aerial Photographers Association 2009), the scientific value and popular appeal of such pictures have been widely recognized. Indeed, Nadar patented the idea of using aerial photographs in mapmaking and surveying. Since then, aerial imagery...
Summer stream water temperature models for Great Lakes streams: New York
James E. McKenna, Ryan S. Butryn, Richard P. McDonald
2010, Transactions of the American Fisheries Society (139) 1399-1414
Temperature is one of the most important environmental influences on aquatic organisms. It is a primary driver of physiological rates and many abiotic processes. However, despite extensive research and measurements, synoptic estimates of water temperature are not available for most regions, limiting our ability to make systemwide and large-scale assessments...
Dreissenid mussels are not a "dead end" in Great Lakes food webs
Charles P. Madenijan, Steven A. Pothoven, Philip J. Schneeberger, Mark P. Ebener, Lloyd C. Mohr, Thomas F. Nalepa, James R. Bence
2010, Journal of Great Lakes Research (36) 73-77
Dreissenid mussels have been regarded as a “dead end” in Great Lakes food webs because the degree of predation on dreissenid mussels, on a lakewide basis, is believed to be low. Waterfowl predation on dreissenid mussels in the Great Lakes has primarily been confined to bays, and therefore its effects...
Identification, characterization and genetic mapping of TLR7, TLR8a1 and TLR8a2 genes in rainbow trout (Oncorhynchus mykiss)
Yniv Palti, Scott A. Gahr, Maureen K. Purcell, Sima Hadidi, Caird E. Rexroad III, Gregory A. Wiens
2010, Developmental and Comparative Immunology (34) 219-233
Induction of the innate immune pathways is critical for early anti-viral defense but there is limited understanding of how teleost fish recognize viral molecules and activate these pathways. In mammals, Toll-like receptors (TLR) 7 and 8 bind single-stranded RNA of viral origin and are activated by synthetic anti-viral imidazoquinoline compounds....
