Comparison of the lognormal and beta distribution functions to describe the uncertainty in permeability
K.L. Ricciardi, G.F. Pinder, K. Belitz
2005, Journal of Hydrology (313) 248-256
The permeability of a single hydrostratigraphic unit is associated with considerable uncertainty due to measurement errors and significant spatial variability. Historically this uncertainty is characterized by a lognormal distribution. This distribution is generally heavy tailed, so using this distribution to describe the permeability has the limitation that all positive values...
Volcano surveillance by ACR silver fox
M.C.L. Patterson, A. Mulligair, J. Douglas, J. Robinson, J.S. Pallister
2005, Conference Paper, Collection of Technical Papers - InfoTech at Aerospace: Advancing Contemporary Aerospace Technologies and Their Integration
Recent growth in the business of unmanned air vehicles (UAVs) both in the US and abroad has improved their overall capability, resulting in a reduction in cost, greater reliability and adoption into areas where they had previously not been considered. Uses in coastal and border patrol, forestry and agriculture have...
A comprehensive study on urban true orthorectification
G. Zhou, W. Chen, J.A. Kelmelis, Dongxiao Zhang
2005, IEEE Transactions on Geoscience and Remote Sensing (43) 2138-2147
To provide some advanced technical bases (algorithms and procedures) and experience needed for national large-scale digital orthophoto generation and revision of the Standards for National Large-Scale City Digital Orthophoto in the National Digital Orthophoto Program (NDOP), this paper presents a comprehensive study on theories, algorithms, and methods of large-scale urban...
Infectious hematopoietic necrosis virus: Monophyletic origin of European isolates from North American Genogroup M
P.-J. Enzmann, Gael Kurath, D. Fichtner, S.M. Bergmann
2005, Diseases of Aquatic Organisms (66) 187-195
Infectious hematopoietic necrosis virus (IHNV) was first detected in Europe in 1987 in France and Italy, and later, in 1992, in Germany. The source of the virus and the route of introduction are unknown. The present study investigates the molecular epidemiology of IHNV outbreaks in Germany since its first introduction....
Trend analysis of time-series phenology derived from satellite data
B. C. Reed, Jesslyn F. Brown
2005, Conference Paper, Proceedings of the Third International Workshop on the Analysis of Multi-Temporal Remote Sensing Images 2005
Remote sensing information has been used in studies of the seasonal dynamics (phenology) of the land surface for the past 15 years. While our understanding of remote sensing phenology is still in development, it is regarded as a key to understanding land surface processes over large areas. Repeat observations from...
Crustal rheology of the Himalaya and Southern Tibet inferred from magnetotelluric data
M.J. Unsworth, A.G. Jones, W. Wei, G. Marquis, S.G. Gokarn, J.E. Spratt, P. Bedrosian, J. Booker, C. Leshou, G. Clarke, L. Shenghui, L. Chanhong, D. Ming, J. Sheng, K. Solon, T. Handong, J. Ledo, B. Roberts
2005, Nature (438) 78-81
The Cenozoic collision between the Indian and Asian continents formed the Tibetan plateau, beginning about 70 million years ago. Since this time, at least 1,400 km of convergence has been accommodated by a combination of underthrusting of Indian and Asian lithosphere, crustal shortening, horizontal extrusion and lithospheric delamination. Rocks exposed...
Use of relational databases to evaluate regional petroleum accumulation, groundwater flow, and CO2 sequestration in Kansas
T.R. Carr, D. F. Merriam, J.D. Bartley
2005, American Association of Petroleum Geologists Bulletin (89) 1607-1627
Large-scale relational databases and geographic information system tools are used to integrate temperature, pressure, and water geo-chemistry data from numerous wells to better understand regional-scale geothermal and hydrogeological regimes of the lower Paleozoic aquifer systems in the mid-continent and to evaluate their potential for geologic CO2 sequestration. The lower Paleozoic...
Relationships of elevation, channel slope, and stream width to occurrences of native fishes at the Great Plains-Rocky Mountains interface
T. S. Brunger-Lipsey, Wayne A. Hubert, Frank J. Rahel
2005, Journal of Freshwater Ecology (20) 695-705
Environmental gradients occur with upstream progression from plains to mountains and affect the occurrence of native warmwater fish species, but the relative importance of various environmental gradients are not defined. We assessed the relative influences of elevation, channel slope, and stream width on the occurrences of 15...
Distribution and nature of fault architecture in a layered sandstone and shale sequence: An example from the Moab fault, Utah
N.C. Davatzes, A. Aydin
2005, Book chapter, Faults, Fluid Flow, and Petroleum Traps
We examined the distribution of fault rock and damage zone structures in sandstone and shale along the Moab fault, a basin-scale normal fault with nearly 1 km (0.62 mi) of throw, in southeast Utah. We find that fault rock and damage zone structures vary along strike and dip. Variations are...
Radiogenic 4He as a conservative tracer in buried‐valley aquifers
Stephen J. Van der Hoven, R. Erik Wright, David A. Carstens, Keith C. Hackley
2005, Water Resources Research (41)
The accumulation of 4He in groundwater can be a powerful tool in hydrogeologic investigations. However, the use of 4He often suffers from disagreement or uncertainty related to in situ and external sources of 4He. In situ sources are quantified by several methods, while external sources are often treated as calibration parameters in modeling....
Volcanic-ash hazard to aviation during the 2003-2004 eruptive activity of Anatahan volcano, Commonwealth of the Northern Mariana Islands
M. Guffanti, J.W. Ewert, G.M. Gallina, G.J.S. Bluth, G.L. Swanson
2005, Journal of Volcanology and Geothermal Research (146) 241-255
Within the Commonwealth of the Northern Mariana Islands (CNMI), Anatahan is one of nine active subaerial volcanoes that pose hazards to major air-traffic routes from airborne volcanic ash. The 2003-2004 eruptive activity of Anatahan volcano affected the region's aviation operations for 3 days in May 2003. On the first day...
Determinants of wood thrush nest success: A multi-scale, model selection approach
Melanie J.L. Driscoll, T. Donovan, R. Mickey, A. Howard, K.K. Fleming
2005, Journal of Wildlife Management (69) 699-709
We collected data on 212 wood thrush (Hylocichla mustelina) nests in central New York from 1998 to 2000 to determine the factors that most strongly influence nest success. We used an information-theoretic approach to assess and rank 9 models that examined the relationship between nest success (i.e., the probability that...
Effect of tilt on strong motion data processing
V.M. Graizer
2005, Soil Dynamics and Earthquake Engineering (25) 197-204
In the near-field of an earthquake the effects of the rotational components of ground motion may not be negligible compared to the effects of translational motions. Analyses of the equations of motion of horizontal and vertical pendulums show that horizontal sensors are sensitive not only to translational motion but also...
Biogeochemical controls on diel cycling of stable isotopes of dissolved 02 and dissolved inorganic carbon in the Big Hole River, Montana
Stephen R. Parker, Simon R. Poulson, Chris Gammons, Michael D. DeGrandpre
2005, Environmental Science & Technology (39) 7134-7140
Rivers with high biological productivity typically show substantial increases in pH and dissolved oxygen (DO) concentration during the day and decreases at night, in response to changes in the relative rates of aquatic photosynthesis and respiration. These changes, coupled with temperature variations, may impart diel (24-h) fluctuations in the concentration...
Seismic joint analysis for non-destructive testing of asphalt and concrete slabs
N. Ryden, C.B. Park
2005, Conference Paper, Geotechnical Special Publication
A seismic approach is used to estimate the thickness and elastic stiffness constants of asphalt or concrete slabs. The overall concept of the approach utilizes the robustness of the multichannel seismic method. A multichannel-equivalent data set is compiled from multiple time series recorded from multiple hammer impacts at progressively different...
Field determination of optimal dates for the discrimination of invasive wetland plant species using derivative spectral analysis
M. Laba, F. Tsai, Danielle Ogurcak, S. Smith, M. E. Richmond
2005, Photogrammetric Engineering and Remote Sensing (71) 603-611
Mapping invasive plant species in aquatic and terrestrial ecosystems helps to understand the causes of their progression, manage some of their negative consequences, and control them. In recent years, a variety of new remote-sensing techniques, like Derivative Spectral Analysis (DSA) of hyperspectral data, have been developed to facilitate this mapping....
Acquisition and evaluation of thermodynamic data for bieberite-moorhouseite equilibria at 0.1 MPa
I.-M. Chou, R.R. Seal II
2005, American Mineralogist (90) 912-917
Published estimates for the equilibrium relative humidity (RH) at 25 deg;C for the reaction: bieberite (CoSO4??7H2O) = moorhouseite (CoSO4??6H2O) + H2O, range from 69.8 to 74.5%. To evaluate these data, the humidity-buffer technique was used to determine equilibrium constants for this reaction between 14 and 43 ??C at 0.1 MPa....
The role of shoreland development and commercial cranberry farming in a lake in Wisconsin, USA
P.J. Garrison, S.A. Fitzgerald
2005, Journal of Paleolimnology (33) 169-188
Musky Bay in Lac Courte Oreilles, Wisconsin, USA, is currently eutrophic. This large, shallow bay of an oligotrophic lake possesses the densest aquatic plant growth and a floating algal mat. Paleoecological reconstructions encompassing the last 130 years, were based on multiproxy analyses of sediment cores from three coring sites, two...
Modeling of site occupancy dynamics for northern spotted owls, with emphasis on the effects of barred owls
Gail S. Olson, Robert G. Anthony, Eric D. Forsman, Steven H. Ackers, Peter J. Loschl, Janice A. Reid, Katie M. Dugger, Elizabeth M. Glenn, William J. Ripple
2005, Journal of Wildlife Management (69) 918-932
Northern spotted owls (Strix occidentalis caurina) have been studied intensively since their listing as a threatened species by the U.S. Fish and Wildlife Service in 1990. Studies of spotted owl site occupancy have used various binary response measures, but most of these studies have made the assumption that detectability is...
Colorado Late Cenozoic Fault and Fold Database and Internet Map Server: User-friendly technology for complex information
K.S. Morgan, G.J. Pattyn, M.L. Morgan
2005, Environmental & Engineering Geoscience (11) 155-162
Internet mapping applications for geologic data allow simultaneous data delivery and collection, enabling quick data modification while efficiently supplying the end user with information. Utilizing Web-based technologies, the Colorado Geological Survey's Colorado Late Cenozoic Fault and Fold Database was transformed from a monothematic, nonspatial Microsoft Access database into a complex...
The relationship between habitat characteristics and demographic performance of northern spotted owls in southern Oregon
Katie M. Dugger, Frank Wagner, Robert G. Anthony, Gail S. Olson
2005, The Condor (107) 863-878
We used data from Northern Spotted Owl (Strix occidentalis caurina) territories to model the effects of habitat (particularly intermediate-aged forest stand types), climate, and nonhabitat covariates (i.e., age, sex) on owl reproductive rate and apparent survival in southwestern Oregon. Our best model for reproductive rate included an interaction between a...
Mapping variations in weight percent silica measured from multispectral thermal infrared imagery - Examples from the Hiller Mountains, Nevada, USA and Tres Virgenes-La Reforma, Baja California Sur, Mexico
S.J. Hook, J.E. Dmochowski, K. A. Howard, L. C. Rowan, K. E. Karlstrom, J. M. Stock
2005, Remote Sensing of Environment (95) 273-289
Remotely sensed multispectral thermal infrared (8-13 ??m) images are increasingly being used to map variations in surface silicate mineralogy. These studies utilize the shift to longer wavelengths in the main spectral feature in minerals in this wavelength region (reststrahlen band) as the mineralogy changes from felsic to mafic. An approach...
Enhanced zinc consumption causes memory deficits and increased brain levels of zinc
J.M. Flinn, D. Hunter, D.H. Linkous, A. Lanzirotti, L.N. Smith, J. Brightwell, B.F. Jones
2005, Physiology & Behavior (83) 793-803
Zinc deficiency has been shown to impair cognitive functioning, but little work has been done on the effects of elevated zinc. This research examined the effect on memory of raising Sprague–Dawley rats on enhanced levels of zinc (10 ppm ZnCO3; 0.153 mM) in the...
A note on the comparative turbidity of some estuaries of the Americas
R.J. Uncles, R. E. Smith
2005, Journal of Coastal Research (21) 845-852
Field data from 27 estuaries of the Americas are used to show that, in broad terms, there is a large difference in turbidity between the analyzed east and west-coast estuaries and that tidal range and tidal length have an important influence on that turbidity. Generic, numerical sediment-transport modeling is used...
Nitrogen controls on ecosystem carbon sequestration: a model implementation and application to Saskatchewan, Canada
J. Liu, D.T. Price, J.M. Chen
2005, Ecological Modelling (186) 178-195
A plant–soil nitrogen (N) cycling model was developed and incorporated into the Integrated BIosphere Simulator (IBIS) of Foley et al. [Foley, J.A., Prentice, I.C., Ramankutty, N., Levis, S., Pollard, D., Sitch, S., Haxeltine, A., 1996. An integrated biosphere model of land surface process, terrestrial carbon balance and vegetation dynamics. Global...
