An onboard data analysis method to track the seasonal polar caps on Mars
K.L. Wagstaff, R. Castano, S. Chien, A.B. Ivanov, E. Pounders, T.N. Titus
Battrick B., editor(s)
2005, European Space Agency, (Special Publication) ESA SP 265-272
The Martian seasonal CO2 ice caps advance and retreat each year. They are currently studied using instruments such as the THermal EMission Imaging System (THEMIS), a visible and infra-red camera on the Mars Odyssey spacecraft [1]. However, each image must be downlinked to Earth prior to analysis. In contrast, we...
An updated global earthquake catalogue for stable continental regions: Reassessing the correlation with ancient rifts
S.M. Schulte, Walter D. Mooney
2005, Geophysical Journal International (161) 707-721
We present an updated global earthquake catalogue for stable continental regions (SCRs; i.e. intraplate earthquakes) that is available on the Internet. Our database contains information on location, magnitude, seismic moment and focal mechanisms for over 1300 M (moment magnitude) ≥ 4.5 historic and instrumentally recorded crustal events. Using this updated earthquake database...
Operation and performance of the mars exploration rover imaging system on the martian surface
J.N. Maki, T. Litwin, M. Schwochert, K. Herkenhoff
2005, Conference Paper, Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
The Imaging System on the Mars Exploration Rovers has successfully operated on the surface of Mars for over one Earth year. The acquisition of hundreds of panoramas and tens of thousands of stereo pairs has enabled the rovers to explore Mars at a level of detail unprecedented in the history...
Status and conservation of the fish fauna of the Alabama River system
Mary C. Freeman, E.R. Irwin, N.M. Burkhead, B. J. Freeman, H.L. Bart Jr.
2005, American Fisheries Society Symposium (2005) 557-585
The Alabama River system, comprising the Alabama, Coosa, and Tallapoosa subsystems, forms the eastern portion of the Mobile River drainage. Physiographic diversity and geologic history have fostered development in the Alabama River system of globally significant levels of aquatic faunal diversity and endemism. At least 184 fishes are native to...
Holocene and latest Pleistocene oblique dextral faulting on the southern Inyo Mountains fault, Owens Lake basin, California
S.N. Bacon, A. S. Jayko, J. P. McGeehin
2005, Bulletin of the Seismological Society of America (95) 2472-2485
The Inyo Mountains fault (IMF) is a more or less continuous range-front fault system, with discontinuous late Quaternary activity, at the western base of the Inyo Mountains in Owens Valley, California. The southern section of the IMF trends ???N20??-40?? W for at least 12 km at the base of and...
Macropolygon morphology, development, and classification on North Panamint and Eureka playas, Death Valley National Park CA
P. Messina, P. Stoffer, W. C. Smith
2005, Earth-Science Reviews (73) 309-322
Panamint and Eureka playas, both located within Death Valley National Park, exhibit a host of surficial features including fissures, pits, mounds, and plant-covered ridges, representing topographic highs and lows that vary up to 2 m of relief from the playa surface. Aerial photographs reveal that these linear strands often converge...
Debris-bed friction of hard-bedded glaciers
D. Cohen, N.R. Iverson, T.S. Hooyer, U.H. Fischer, M. Jackson, P.L. Moore
2005, Journal of Geophysical Research F: Earth Surface (110)
[1] Field measurements of debris-bed friction on a smooth rock tablet at the bed of Engabreen, a hard-bedded, temperate glacier in northern Norway, indicated that basal ice containing 10% debris by volume exerted local shear traction of up to 500 kPa. The corresponding bulk friction coefficient between the dirty basal...
Effects of landscape change on fish assemblage structure in a rapidly growing metropolitan area in North Carolina, USA
J.G. Kennen, M. Chang, B.H. Tracy
2005, American Fisheries Society Symposium (2005) 39-52
We evaluated a comprehensive set of natural and land-use attributes that represent the major facets of urban development at fish monitoring sites in the rapidly growing Raleigh-Durham, North Carolina metropolitan area. We used principal component and correlation analysis to obtain a nonredundant subset of variables that extracted most variation in...
Effects of urbanization on the distribution and abundance of amphibians and invasive species in southern California streams
S.P.D. Riley, G.T. Busteed, L.B. Kats, T.L. Vandergon, L.F.S. Lee, R.G. Dagit, J.L. Kerby, Robert N. Fisher, R.M. Sauvajot
2005, Conservation Biology (19) 1894-1907
Urbanization negatively affects natural ecosystems in many ways, and aquatic systems in particular. Urbanization is also cited as one of the potential contributors to recent dramatic declines in amphibian populations. From 2000 to 2002 we determined the distribution and abundance of native amphibians and exotic predators and characterized stream habitat...
Historical and current perspectives on fish assemblages of the Snake River, Idaho and Wyoming
T.R. Maret, C.A. Mebane
2005, American Fisheries Society Symposium (2005) 41-59
The Snake River is the tenth longest river in the United States, extending 1,667 km from its origin in Yellowstone National Park in western Wyoming to its union with the Columbia River at Pasco, Washington. Historically, the main-stem Snake River upstream from the Hells Canyon Complex supported at least 26...
Reddish Egret extends its breeding range along the North American Atlantic coast into South Carolina
L.M. Ferguson, P.G.R. Jodice, W. Post, F.I. Sanders
2005, Waterbirds (28) 525-526
We report the northernmost breeding record of the Reddish Egret (Egretta rufescens) along the North American Atlantic Coast. Nesting activity was first seen in late May 2004, and on 6 July 2004 a nest was discovered with two young chicks on Marsh Island, a barrier island located within Cape Romain...
Rural land-use trends in the conterminous United States, 1950-2000
Daniel G. Brown, Kenneth M. Johnson, Thomas R. Loveland, David M. Theobald
2005, Ecological Applications (15) 1851-1863
In order to understand the magnitude, direction, and geographic distribution of land-use changes, we evaluated land-use trends in U.S. counties during the latter half of the 20th century. Our paper synthesizes the dominant spatial and temporal trends in population, agriculture, and urbanized land uses, using a variety of data sources...
Recent U.S. Geological Survey applications of Lidar
Vivian R. Queija, Jason M. Stoker, John J. Kosovich
2005, Photogrammetric Engineering and Remote Sensing (71) 5-9
As lidar (light detection and ranging) technology matures, more applications are being explored by U.S. Geological Survey (USGS) scientists throughout the Nation, both in collaboration with other Federal agencies and alone in support of USGS natural-hazards research (Crane et al., 2004). As the technology continues to improve and evolve, USGS...
The influence of ozone on atmospheric emissions of gaseous elemental mercury and reactive gaseous mercury from substrates
M.A. Engle, Gustin M. Sexauer, S.E. Lindberg, A.W. Gertler, P.A. Ariya
2005, Conference Paper, Atmospheric Environment
Experiments were performed to investigate the effect of ozone (O 3) on mercury (Hg) emission from a variety of Hg-bearing substrates. Substrates with Hg(II) as the dominant Hg phase exhibited a 1.7 to 51-fold increase in elemental Hg (Hgo) flux and a 1.3 to 8.6-fold increase in reactive gaseous mercury...
Coastal iron fluxes to surface waters of the NE Pacific: A driver of the marine ecosystem and carbon cycle
John Crusius, J.L. Nielsen
2005, Report
Westward expansion of the eastern pipistrelle (Pipistrellus subflavus) in the United States, including new records from New Mexico, South Dakota, and Texas
Keith Geluso, T.R. Mollhagen, J.M. Tigner, M.A. Bogan
2005, Western North American Naturalist (65) 405-409
No abstract available....
Westward expansion of the tawny-bellied cotton rat (Sigmodon fulviventer) in west-central New Mexico
Keith Geluso, J. D. Hoffman, V.A. Ashe, J.A. White, M.A. Bogan
2005, Southwestern Naturalist (50) 274-277
In New Mexico, the tawny-bellied cotton rat (Sigmodon fulviventer) previously was known only from central and southwestern parts of the state. In central New Mexico, most records were from areas of tall grass and marshes associated with the middle Rio Grande valley. In 2003, we discovered S. fulviventer in grassy...
The evolution of Titan's mid-latitude clouds
C.A. Griffith, P. Penteado, K. Baines, P. Drossart, J. Barnes, G. Bellucci, J. Bibring, R. Brown, B. Buratti, F. Capaccioni, P. Cerroni, R. Clark, M. Combes, A. Coradini, D. Cruikshank, V. Formisano, R. Jaumann, Y. Langevin, D. Matson, T. McCord, V. Mennella, R. Nelson, P. Nicholson, B. Sicardy, Christophe Sotin, L.A. Soderblom, R. Kursinski
2005, Science (310) 474-477
Spectra from Cassini's Visual and Infrared Mapping Spectrometer reveal that the horizontal structure, height, and optical depth of Titan's clouds are highly, dynamic. Vigorous cloud centers are seen to rise from the middle to the upper troposphere within 30 minutes and dissipate within the next hour. Their development indicates that...
Rhynchelmis aleutensis n. sp. (Clitellata: Lumbriculidae) from Adak Island, Alaska
Steven V. Fend
2005, Zootaxa (1093) 45-53
A new lumbriculid worm, Rhynchelmis aleutensis, is described from streams on Adak Island, Alaska. The new species does not resemble other Alaskan or Siberian Rhynchelmis species. The paired spermathecal diverticula and the morphology of the male pores and atria suggest that it is more closely related to a species group known only from...
Phylogeographic patterns of Hawaiian Megalagrion damselflies (Odonata: Coenagrionidae) correlate with Pleistocene island boundaries
Stephen A. Jordan, C. Simon, D. Foote, R.A. Englund
2005, Molecular Ecology (14) 3457-3470
The Pleistocene geological history of the Hawaiian Islands is becoming well understood. Numerous predictions about the influence of this history on the genetic diversity of Hawaiian organisms have been made, including the idea that changing sea levels would lead to the genetic differentiation of populations isolated on individual volcanoes during...
Assessing background ground water chemistry beneath a new unsewered subdivision
J.D. Wilcox, K. R. Bradbury, C. L. Thomas, J.M. Bahr
2005, Ground Water (43) 787-795
Previous site-specific studies designed to assess the impacts of unsewered subdivisions on ground water quality have relied on upgradient monitoring wells or very limited background data to characterize conditions prior to development. In this study, an extensive monitoring program was designed to document ground water conditions prior to construction of...
Evidence of detrimental effects of environmental contaminants on growth and reproductive physiology of white sturgeon in impounded areas of the Columbia River
G.W. Feist, M.A.H. Webb, D.T. Gundersen, E.P. Foster, C.B. Schreck, A.G. Maule, M.S. Fitzpatrick
2005, Environmental Health Perspectives (113) 1675-1682
This study sought to determine whether wild white sturgeon from the Columbia River (Oregon) were exhibiting signs of reproductive endocrine disruption. Fish were sampled in the free-flowing portion of the river (where the population is experiencing reproductive success) and from three reservoirs behind hydroelectric dams (where fish have reduced reproductive...
An evaluation of sampling strategies to improve precision of estimates of gross change in land use and land cover
S.V. Stehman, Terry L. Sohl, Thomas R. Loveland
2005, International Journal of Remote Sensing (26) 4941-4957
Statistical sampling offers a cost-effective, practical alternative to complete-coverage mapping for the objective of estimating gross change in land cover over large areas. Because land cover change is typically rare, the sampling strategy must take advantage of design and analysis tools that enhance precision. Using two populations of land cover...
Reserve growth of the world's giant oil fields
T. R. Klett, J. W. Schmoker
2005, Conference Paper, AAPG Memoir
Analysis of estimated total recoverable oil volume (field size) of 186 well-known giant oil fields of the world (>0.5 billion bbl of oil, discovered prior to 1981), exclusive of the United States and Canada, demonstrates general increases in field sizes through time. Field sizes were analyzed as a group and...
[Book review] Great Basin riparian ecosystems: Ecology, management, and restoration
G.T. Auble
2005, Restoration Ecology (13) 237-238
No abstract available....
