Reconciling multiple data sources to improve accuracy of large-scale prediction of forest disease incidence
E.M. Hanks, Mevin Hooten, F.A. Baker
2011, Ecological Applications (21) 1173-1188
Ecological spatial data often come from multiple sources, varying in extent and accuracy. We describe a general approach to reconciling such data sets through the use of the Bayesian hierarchical framework. This approach provides a way for the data sets to borrow strength from one another while allowing for inference...
College and university environmental programs as a policy problem (Part 2): Strategies for improvement
S.G. Clark, M.B. Rutherford, M.R. Auer, D.N. Cherney, R.L. Wallace, David J. Mattson, D. A. Clark, L. Foote, N. Krogman, P. Wilshusen, T. Steelman
2011, Environmental Management (47) 716-726
Environmental studies and environmental sciences programs in American and Canadian colleges and universities seek to ameliorate environmental problems through empirical enquiry and analytic judgment. In a companion article (Part 1) we describe the environmental program movement (EPM) and discuss factors that have hindered its performance. Here, we complete our analysis...
Preparing for a "Big One": The great southern California shakeout
Lucile M. Jones, M. Benthien
2011, Earthquake Spectra (27) 575-595
The Great Southern California ShakeOut was a week of special events featuring the largest earthquake drill in United States history. On November 13, 2008, over 5 million Southern Californians pretended that the magnitude-7.8 ShakeOut scenario earthquake was occurring and practiced actions derived from results of the ShakeOut Scenario, to reduce...
Retesting of liquefaction and nonliquefaction case histories from the 1976 Tangshan earthquake
R.E.S. Moss, R. E. Kayen, L.-Y. Tong, S.-Y. Liu, G.-J. Cai, J. Wu
2011, Journal of Geotechnical and Geoenvironmental Engineering (137) 334-343
A field investigation was performed to retest liquefaction and nonliquefaction sites from the 1976 Tangshan earthquake in China. These sites were carefully investigated in 1978 and 1979 by using standard penetration test (SPT) and cone penetration test (CPT) equipment; however, the CPT measurements are obsolete because of the now nonstandard...
Multinomial mixture model with heterogeneous classification probabilities
M.D. Holland, Brian R. Gray
2011, Environmental and Ecological Statistics (18) 257-270
Royle and Link (Ecology 86(9):2505–2512, 2005) proposed an analytical method that allowed estimation of multinomial distribution parameters and classification probabilities from categorical data measured with error. While useful, we demonstrate algebraically and by simulations that this method yields biased multinomial parameter estimates when the probabilities of correct category classifications vary...
Electrical properties of polycrystalline methane hydrate
W. L. Du Frane, L.A. Stern, K.A. Weitemeyer, S. Constable, J.C. Pinkston, J.J. Roberts
2011, Geophysical Research Letters (38)
Electromagnetic (EM) remote-sensing techniques are demonstrated to be sensitive to gas hydrate concentration and distribution and complement other resource assessment techniques, particularly seismic methods. To fully utilize EM results requires knowledge of the electrical properties of individual phases and mixing relations, yet little is known about the electrical properties of...
Adult survival and population growth rate in Colorado big brown bats (Eptesicus fuscus)
Thomas J. O’Shea, Laura E. Ellison, Thomas R. Stanley
2011, Journal of Mammalogy (92) 433-443
We studied adult survival and population growth at multiple maternity colonies of big brown bats (Eptesicus fuscus) in Fort Collins, Colorado. We investigated hypotheses about survival using information-theoretic methods and mark–recapture analyses based on passive detection of adult females tagged with passive integrated transponders. We constructed a 3-stage life-history matrix...
Remote compositional analysis of lunar olivine-rich lithologies with Moon Mineralogy Mapper (M3) spectra
P.J. Isaacson, C.M. Pieters, S. Besse, Roger N. Clark, J.W. Head, R.L. Klima, J.F. Mustard, N.E. Petro, M.I. Staid, J.M. Sunshine, L.A. Taylor, K.G. Thaisen, S. Tompkins
2011, Journal of Geophysical Research E: Planets (116)
A systematic approach for deconvolving remotely sensed lunar olivine‐rich visible to near‐infrared (VNIR) reflectance spectra with the Modified Gaussian Model (MGM) is evaluated with Chandrayaan‐1 Moon Mineralogy Mapper (M3) spectra. Whereas earlier studies of laboratory reflectance spectra focused only on complications due to chromite inclusions in lunar olivines, we develop...
The key to commercial-scale geological CO2 sequestration: Displaced fluid management
R.C. Surdam, Z. Jiao, P. Stauffer, T. Miller
2011, Energy Procedia (4) 4246-4251
The Wyoming State Geological Survey has completed a thorough inventory and prioritization of all Wyoming stratigraphic units and geologic sites capable of sequestering commercial quantities of CO2 (5–15 Mt CO2/year). This multi-year study identified the Paleozoic Tensleep/Weber Sandstone and Madison Limestone (and stratigraphic equivalent units) as the leading clastic and carbonate...
Depth as an organizer of fish assemblages in floodplain lakes
Leandro E. Miranda
2011, Aquatic Sciences (73) 211-221
Depth reduction is a natural process in floodplain lakes, but in many basins has been accelerated by anthropogenic disturbances. A diverse set of 42 floodplain lakes in the Yazoo River Basin (Mississippi, USA) was examined to test the hypothesis of whether depth reduction was a key determinant of water quality...
Rayleigh-based, multi-element coral thermometry: A biomineralization approach to developing climate proxies
G.A. Gaetani, A.L. Cohen, Z. Wang, John Crusius
2011, Geochimica et Cosmochimica Acta (75) 1920-1932
This study presents a new approach to coral thermometry that deconvolves the influence of water temperature on skeleton composition from that of “vital effects”, and has the potential to provide estimates of growth temperatures that are accurate to within a few tenths of a degree Celsius from both tropical and...
Conservation in the face of climate change: The roles of alternative models, monitoring, and adaptation in confronting and reducing uncertainty
M.J. Conroy, Michael C. Runge, James D. Nichols, K.W. Stodola, R.J. Cooper
2011, Biological Conservation (144) 1204-1213
The broad physical and biological principles behind climate change and its potential large scale ecological impacts on biota are fairly well understood, although likely responses of biotic communities at fine spatio-temporal scales are not, limiting the ability of conservation programs to respond effectively to climate change outside the range of...
Multiscale site-response mapping: A case study of Parkfield, California
E.M. Thompson, L.G. Baise, R. E. Kayen, E.C. Morgan, J. Kaklamanos
2011, Bulletin of the Seismological Society of America (101) 1081-1100
The scale of previously proposed methods for mapping site-response ranges from global coverage down to individual urban regions. Typically, spatial coverage and accuracy are inversely related.We use the densely spaced strong-motion stations in Parkfield, California, to estimate the accuracy of different site-response mapping methods and demonstrate a method for integrating...
Dispersal and behavior of Pacific halibut Hippoglossus stenolepis in the Bering Sea and Aleutian Islands region
A.C. Seitz, Timothy Loher, Brenda L. Norcross, Jennifer L. Nielsen
2011, Aquatic Biology (12) 225-239
Currently, it is assumed that eastern Pacific halibut Hippoglossus stenolepis belong to a single, fully mixed population extending from California through the Bering Sea, in which adult halibut disperse randomly throughout their range during their lifetime. However, we hypothesize that halibut dispersal is more complex than currently assumed and is not spatially...
The path to a successful one-million tonne demonstration of geological sequestration: Characterization, cooperation, and collaboration
R.J. Finley, S.E. Greenberg, S.M. Frailey, I.G. Krapac, H.E. Leetaru, S. Marsteller
2011, Conference Paper, Energy Procedia
The development of the Illinois Basin-Decatur USA test site for a 1 million tonne injection of CO2 into the Mount Simon Sandstone saline reservoir beginning in 2011 has been a multiphase process requiring a wide array of personnel and resources that began in 2003. The process of regional characterization took two years...
Diet composition and feeding patterns of adult shovelnose sturgeon (Scaphirhynchus platorynchus) in the lower Platte River, Nebraska, USA
T. Rapp, D. A. Shuman, B. D. S. Graeb, S. R. Chipps, E. J. Peters
2011, Journal of Applied Ichthyology (27) 351-355
Two-hundred and seven adult shovelnose sturgeon ranging from 450 to 718 mm in length were sampled from June to October 2001 and May to July 2002 to determine diet composition and feeding patterns in the lower Platte River. Shovelnose sturgeon fed primarily upon aquatic insect larvae and nymphs (>99% composition by...
Notes on the origin of inertinite macerals in coal: Evidence for fungal and arthropod transformations of degraded macerals
J.C. Hower, J.M.K. O’Keefe, C.F. Eble, A. Raymond, B. Valentim, T.J. Volk, A.R. Richardson, Anne B. Satterwhite, R.S. Hatch, J.D. Stucker, M.A. Watt
2011, International Journal of Coal Geology (86) 231-240
The role of fungus in the formation of coal macerals, both as a primary contributor in the form of a fungus fossil/maceral funginite, and in their role in degrading wood, thus producing degraded maceral forms, has been established. Fungus, in the course of breaking down the lignin and cellulose in wood,...
Enhancement of long period components of recorded and synthetic ground motions using InSAR
J.A. Abell, J. Carlos de la Llera, Charles W. Wicks Jr.
2011, Soil Dynamics and Earthquake Engineering (31) 817-829
Tall buildings and flexible structures require a better characterization of long period ground motion spectra than the one provided by current seismic building codes. Motivated by that, a methodology is proposed and tested to improve recorded and synthetic ground motions which are consistent with the observed co-seismic displacement field...
Adaptive management of natural resources-framework and issues
Byron K. Williams
2011, Journal of Environmental Management (92) 1346-1353
Adaptive management, an approach for simultaneously managing and learning about natural resources, has been around for several decades. Interest in adaptive decision making has grown steadily over that time, and by now many in natural resources conservation claim that...
Study design and sampling intensity for demographic analyses of bear populations
R.B. Harris, C.C. Schwartz, R.D. Mace, M.A. Haroldson
2011, Ursus (22) 24-36
The rate of population change through time (??) is a fundamental element of a wildlife population's conservation status, yet estimating it with acceptable precision for bears is difficult. For studies that follow known (usually marked) bears, ?? can be estimated during some defined time by applying either life-table or matrix...
Using a semi-natural stream to produce young sturgeons for conservation stocking: Maintaining natural selection during spawning and rearing
B. Kynard, D. Pugh, T. Parker, Micah Kieffer
2011, Journal of Applied Ichthyology (27) 420-424
Young sturgeons used for conservation stocking are presently produced using the same methods used for commercial culture. To determine if young sturgeons could be produced without relaxing natural selection factors, we developed a semi‐natural stream where we annually studied mating of wild shortnose sturgeon (Acipenser brevirostrum) observed movement of gametes...
Seasonal distribution of Gulf of Mexico sturgeon in the pensacola bay system, Florida
M.S. Duncan, B.M. Wrege, Frank M. Parauka, J. Jeffery Isely
2011, Journal of Applied Ichthyology (27) 316-321
Temporal and spatial distributions of Gulf of Mexico (Gulf) sturgeon Acipenser oxyrinchus desotoi were assessed in the Pensacola bay system, Florida, using stationary ultrasonic telemetry. Fifty‐eight Gulf sturgeon were tagged within the Escambia (n = 26), Yellow (n = 8), Blackwater (n = 12) and Choctawhatchee Rivers (n = 12) in June, July, September and October, 2005. Fifty‐four Gulf sturgeon...
Compositional diversity and geologic insights of the Aristarchus crater from Moon Mineralogy Mapper data
J.F. Mustard, C.M. Pieters, P.J. Isaacson, J.W. Head, S. Besse, R. N. Clark, R.L. Klima, N.E. Petro, M.I. Staid, J.M. Sunshine, C.J. Runyon, S. Tompkins
2011, Journal of Geophysical Research E: Planets (116)
The Moon Mineralogy Mapper (M3) acquired high spatial and spectral resolution data of the Aristarchus Plateau with 140 m/pixel in 85 spectral bands from 0.43 to 3.0 m. The data were collected as radiance and converted to reflectance using the observational constraints and a solar spectrum scaled to the Moon-Sun...
2-D inner-shelf current observations from a single VHF WEllen RAdar (WERA) station
G. Voulgaris, N. Kumar, K.-W. Gurgel, John C. Warner, Jeffrey H. List
2011, Conference Paper, 2011 IEEE/OES/CWTM 10th working conference on current, waves and turbulence measurement, CWTM 2011
The majority of High Frequency (HF) radars used worldwide operate at medium to high frequencies (8 to 30 MHz) providing spatial resolutions ranging from 3 to 1.5 km and ranges from 150 to 50 km. This paper presents results from the deployment of a single Very High Frequency (VHF, 48...
Meeting CCS communication challenges head-on: Integrating communications, planning, risk assessment, and project management
S. Greenberg, L. Gauvreau, K. Hnottavange-Telleen, R. Finley, S. Marsteller
2011, Conference Paper, Energy Procedia
The Midwest Geological Sequestration Consortium, Schlumberger Carbon Services, and Archer Daniels Midland has implemented a comprehensive communications plan at the Illinois Basin–Decatur Project (IBDP), a one million metric tonne Carbon Capture and Storage project in Decatur, IL, USA funded by the U.S. Department of Energy’s National Energy Technology Laboratory. The...