Abundance, stock origin, and length of marked and unmarked juvenile Chinook salmon in the surface waters of greater Puget Sound
C. A. Rice, C.M. Greene, P. Moran, D.J. Teel, D.R. Kuligowski, Reginald R. Reisenbichler, E.M. Beamer, J.R. Karr, K.L. Fresh
2011, Transactions of the American Fisheries Society (140) 170-189
This study focuses on the use by juvenile Chinook salmon Oncorhynchus tshawytscha of the rarely studied neritic environment (surface waters overlaying the sublittoral zone) in greater Puget Sound. Juvenile Chinook salmon inhabit the sound from their late estuarine residence and early marine transition to their first year at sea. We measured the...
Mapping irrigated areas of Ghana using fusion of 30 m and 250 m resolution remote-sensing data
M.K. Gumma, P.S. Thenkabail, F. Hideto, A. Nelson, V. Dheeravath, D. Busia, A. Rala
2011, Remote Sensing (3) 816-835
Maps of irrigated areas are essential for Ghana's agricultural development. The goal of this research was to map irrigated agricultural areas and explain methods and protocols using remote sensing. Landsat Enhanced Thematic Mapper (ETM+) data and time-series Moderate Resolution Imaging Spectroradiometer (MODIS) data were used to map irrigated agricultural areas...
Changes in agricultural cropland areas between a water-surplus year and a water-deficit year impacting food security, determined using MODIS 250 m time-series data and spectral matching techniques, in the Krishna river basin (India)
Murali Krishna Gumma, Prasad S. Thenkabail, I.V. Muralikrishna, Naga Manohar Velpuri, P.T. Gangadhararao, V. Dheeravath, C.M. Biradar, S.A. Nalan, A. Gaur
2011, International Journal of Remote Sensing (32) 3495-3520
The objective of this study was to investigate the changes in cropland areas as a result of water availability using Moderate Resolution Imaging Spectroradiometer (MODIS) 250 m time-series data and spectral matching techniques (SMTs). The study was conducted in the Krishna River basin in India, a very large river basin...
Age, genesis, and paleoclimatic interpretation of the Sangamon/Loveland complex in the Lower Mississippi Valley, USA
H. W. Markewich, D.A. Wysocki, M.J. Pavich, E.M. Rutledge
2011, Geological Society of America Bulletin (123) 21-39
For more than a century, the Sangamon paleosol (the Sangamon) has been an integral part of geologic and pedologic investigations in the central United States, including the Upper Mississippi and Lower Missouri River Valleys. Compositional, pedologic, micromorphologic, stratigraphic, and age data indicate that the prominent reddish paleosol developed in silt-rich...
Sources and physical processes responsible for OH/H2O in the lunar soil as revealed by the Moon Mineralogy Mapper (M3)
T. B. McCord, L.A. Taylor, J. #NAME? Combe, G. Kramer, C.M. Pieters, J.M. Sunshine, R. N. Clark
2011, Journal of Geophysical Research E: Planets (116)
Analysis of two absorption features near 3 m in the lunar reflectance spectrum, observed by the orbiting M3 spectrometer and interpreted as being due to OH and H2O, is presented, and the results are used to discuss the processes producing these molecules. This analysis focuses on the dependence of the...
Recovery and reprocessing of legacy geophysical data from the archives of the State Company of Geology and Mining (GEOSURV) of Iraq and Iraq Petroleum Company (IPC)
David V. Smith, Benjamin J. Drenth, J.D. Fairhead, K. Lei, J.A. Dark, K. Al-Bassam
2011, SEG Technical Program Expanded Abstracts (30) 856-860
Aeromagnetic data belonging to the State Company of Geology and Mining of Iraq (GEOSURV) have been recovered from magnetic tapes and early paper maps. In 1974 a national airborne survey was flown by the French firm Compagnie General de Geophysique (CGG). Following the survey the magnetic data were stored on...
Hierarchical modeling of an invasive spread: The eurasian collared-dove streptopelia decaocto in the United States
F. Bled, J. Andrew Royle, E. Cam
2011, Ecological Applications (21) 290-302
Invasive species are regularly claimed as the second threat to biodiversity. To apply a relevant response to the potential consequences associated with invasions (e.g., emphasize management efforts to prevent new colonization or to eradicate the species in places where it has already settled), it is essential to understand invasion mechanisms...
Implementing telemetry on new species in remote areas: Recommendations from a large-scale satellite tracking study of African waterfowl
J. Cappelle, S. A. Iverson, John Y. Takekawa, S. H. Newman, T. Dodman, N. Gaidet
2011, Ostrich (82) 17-26
We provide recommendations for implementing telemetry studies on waterfowl on the basis of our experience in a tracking study conducted in three countries of sub-Saharan Africa. The aim of the study was to document movements by duck species identified as priority candidates for the potential spread of avian influenza. Our...
Terrestrial sensitivity to abrupt cooling recorded by aeolian activity in northwest Ohio, USA
M.C. Campbell, T.G. Fisher, R.J. Goble
2011, Quaternary Research (75) 411-416
Optically stimulated luminescence dated sand dunes and Pleistocene beach ridges in northwest Ohio are used to reconstruct landscape modification more than 5000. yr after deglaciation. Four of the OSL ages (13.3-11.1. ka) cluster around the Younger Dryas cold event, five ages (10.8-8.2. ka) cluster around the Preboreal, one young age...
Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009
H.-A. Wu, Y.-H. Zhang, X.-Y. Chen, T. Lu, J. Du, Z.-H. Sun, G.-T. Sun
2011, Chinese Journal of Geophysics (Acta Geophysica Sinica) (54) 673-680
DInSAR technique based on time series of SAR images has been very popular to monitor ground stow deformation in recent years such as permanent scatterers (PS) method small baseline subsets (SBAS) method and coherent targets (CT) method. By taking advantage of PS method and CT method in this paper small...
Near-surface shear-wave velocity measurements in unlithified sediment
B.T. Richards, D. Steeples, R. Miller, J. Ivanov, S. Peterie, S.D. Sloan, J.R. McKenna
2011, SEG Technical Program Expanded Abstracts (30) 1416-1420
S-wave velocity can be directly correlated to material stiffness and lithology making it a valuable physical property that has found uses in construction, engineering, and environmental projects. This study compares different methods for measuring S-wave velocities, investigating and identifying the differences among the methods' results, and prioritizing the different methods...
Modeling routes of chronic wasting disease transmission: Environmental prion persistence promotes deer population decline and extinction
Emily S. Almberg, Paul C. Cross, Christopher J. Johnson, Dennis M. Heisey, Bryan J. Richards
2011, PLoS ONE (6)
Chronic wasting disease (CWD) is a fatal disease of deer, elk, and moose transmitted through direct, animal-to-animal contact, and indirectly, via environmental contamination. Considerable attention has been paid to modeling direct transmission, but despite the fact that CWD prions can remain infectious in the environment for years, relatively little information...
Mercury trends in fish from rivers and lakes in the United States, 1969-2005
A.T. Chalmers, D.M. Argue, D.A. Gay, M. E. Brigham, C. J. Schmitt, D. L. Lorenz
2011, Environmental Monitoring and Assessment (175) 175-191
A national dataset on concentrations of mercury in fish, compiled mainly from state and federal monitoring programs, was used to evaluate trends in mercury (Hg) in fish from US rivers and lakes. Trends were analyzed on data aggregated by site and by state, using samples of the same fish species...
Ground settlement monitoring based on temporarily coherent points between two SAR acquisitions
L. Zhang, X. Ding, Z. Lu
2011, ISPRS Journal of Photogrammetry and Remote Sensing (66) 146-152
An InSAR analysis approach for identifying and extracting the temporarily coherent points (TCP) that exist between two SAR acquisitions and for determining motions of the TCP is presented for applications such as ground settlement monitoring. TCP are identified based on the spatial characteristics of the range and azimuth offsets of...
Factors Controlling Pre-Columbian and Early Historic Maize Productivity in the American Southwest, Part 1: The Southern Colorado Plateau and Rio Grande Regions
L. V. Benson
2011, Journal of Archaeological Method and Theory (18) 1-60
Maize is the New World's preeminent grain crop and it provided the economic basis for human culture in many regions within the Americas. To flourish, maize needs water, sunlight (heat), and nutrients (e. g., nitrogen). In this paper, climate and soil chemistry data are used to evaluate the potential for...
Projected changes to growth and mortality of Hawaiian corals over the next 100 years
R.K. Hoeke, P. L. Jokiel, R. W. Buddemeier, R.E. Brainard
2011, PLoS ONE (6)
Background: Recent reviews suggest that the warming and acidification of ocean surface waters predicated by most accepted climate projections will lead to mass mortality and declining calcification rates of reef-building corals. This study investigates the use of modeling techniques to quantitatively examine rates of coral cover change due to these...
Spatiotemporal distribution and population characteristicsof a nonnative lake trout population, with implications for suppression
A.M. Dux, C.S. Guy, W.A. Fredenberg
2011, North American Journal of Fisheries Management (31) 187-196
We evaluated the distribution and population characteristics of nonnative lake trout Salvelinus namaycush in Lake McDonald,Glacier National Park,Montana, to provide biological data in support of a potential suppression program. Using ultrasonic telemetry, we identified spatial and temporal distribution patterns by tracking 36 adult lake trout (1,137 relocations). Lake trout rarely...
Vibrational, X-ray absorption, and Mössbauer spectra of sulfate minerals from the weathered massive sulfide deposit at Iron Mountain, California
Juraj Majzlan, Charles N. Alpers, Christian Bender Koch, R. Blaine McCleskey, Satish B.C. Myneni, John M. Neil
2011, Chemical Geology (284) 296-305
The Iron Mountain Mine Superfund site in California is a prime example of an acid mine drainage (AMD) system with well developed assemblages of sulfate minerals typical for such settings. Here we present and discuss the vibrational (infrared), X-ray absorption, and M??ssbauer spectra of a number of these phases, augmented...
Experimental determination of the phase boundary between kornelite and pentahydrated ferric sulfate at 0.1MPa
W.G. Kong, A. Wang, I.-M. Chou
2011, Chemical Geology (284) 333-338
Recent findings of various ferric sulfates on Mars emphasize the importance of understanding the fundamental properties of ferric sulfates at temperatures relevant to that of Martian surface. In this study, the phase boundary between kornelite (Fe2(SO4)3.7H2O) and pentahydrated ferric sulfate (Fe2(SO4)3.5H2O) was experimentally determined using the humidity-buffer technique together with...
Multi-channel analysis of surface waves MASW of models with high shear-wave velocity contrast
J. Ivanov, R. D. Miller, S. Peterie, C. Zeng, J. Xia, T. Schwenk
2011, SEG Technical Program Expanded Abstracts (30) 1384-1390
We use the multi-channel analysis of surface waves MASW method to analyze synthetic seismic data calculated using models with high shear-wave velocity Vs contrast. The MASW dispersion-curve images of the Rayleigh wave are obtained using various sets of source-offset and spread-size configurations from the synthetic seismic data and compared with...
Classification of MEC with the ALLTEM at Camp Stanley, Texas
T. Asch, C. Moulton, D.V. Smith
2011, SEG Technical Program Expanded Abstracts (30) 1363-1367
The ALLTEM is a multi-axis electromagnetic induction system designed for unexploded ordnance UXO applications. It uses a continuous triangle-wave excitation and provides good late-time signal-to-noise ratio SNR especially for ferrous targets. Multi-axis transmitter Tx and receiver Rx systems such as ALLTEM provide a richer data set from which to invert...
Historical trends of hypoxia in Changjiang River estuary: Applications of chemical biomarkers and microfossils
X. Li, T.S. Bianchi, Z. Yang, L.E. Osterman, M. A. Allison, Steven F. DiMarco, G. Yang
2011, Journal of Marine Systems (86) 57-68
Over the past two decades China has become the largest global consumer of fertilizers, which has enhanced river nutrient fluxes and caused eutrophication and hypoxia in the Yangtze (Changjiang) large river delta-front estuary (LDE). In this study, we utilized plant pigments, lignin-phenols, stable isotopes (δ13C and δ15N) and foraminiferal microfossils...
Advancing environmental toxicology through chemical dosimetry: External exposures versus tissue residues
L.S. McCarty, P.F. Landrum, S. N. Luoma, J.P. Meador, A.A. Merten, B.K. Shephard, A.P. van Wezelzz
2011, Integrated Environmental Assessment and Management (7) 7-27
The tissue residue dose concept has been used, although in a limited manner, in environmental toxicology for more than 100 y. This review outlines the history of this approach and the technical background for organic chemicals and metals. Although the toxicity of both can be explained in tissue residue terms,...
Rangewide phylogeography and landscape genetics of the Western U.S. endemic frog Rana boylii (Ranidae): Implications for the conservation of frogs and rivers
A.J. Lind, P.Q. Spinks, G. M. Fellers, H.B. Shaffer
2011, Conservation Genetics (12) 269-284
Genetic data are increasingly being used in conservation planning for declining species. We sampled both the ecological and distributional limits of the foothill yellow-legged frog, Rana boylii to characterize mitochondrial DNA (mtDNA) variation in this declining, riverine amphibian. We evaluated 1525 base pairs (bp) of cytochrome b and ND2 fragments...
Survival of white-tailed deer neonates in Minnesota and South Dakota
T.W. Grovenburg, C. C. Swanson, C.N. Jacques, R. W. Klaver, T.J. Brinkman, B.M. Burris, C.S. Deperno, J.A. Jenks
2011, Journal of Wildlife Management (75) 213-220
Understanding the influence of intrinsic (e.g., age, birth mass, and sex) and habitat factors on survival of neonate white-tailed deer improves understanding of population ecology. During 2002–2004, we captured and radiocollared 78 neonates in eastern South Dakota and southwestern Minnesota, of which 16 died before 1 September. Predation accounted for...
