Introduction to the JEEG Agricultural Geophysics Special Issue
Barry J. Allred, Bruce D. Smith
2010, Journal of Environmental & Engineering Geophysics (15) v-vi
Near-surface geophysical methods have become increasingly important tools in applied agricultural practices and studies. The great advantage of geophysical methods is their potential rapidity, low cost, and spatial continuity when compared to more traditional methods of assessing agricultural land, such as sample collection and laboratory analysis. Agricultural geophysics investigations commonly...
Effects of nourishment on the form and function of an estuarine beach
N.L. Jackson, K.F. Nordstrom, S. Saini, D. R. Smith
2010, Ecological Engineering (36) 1709-1718
Beach nourishment programs in estuaries can enhance shore protection, but they decrease habitat suitability by creating higher berms and wider backshores than would occur under natural conditions. Use of sediment sources from outside the area can result in sedimentary characteristics that differ from native sediments on the surface and at...
Calibration and filtering strategies for frequency domain electromagnetic data
Burke J. Minsley, Bruce D. Smith, Richard Hammack, James I. Sams, Garret Veloski
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
echniques for processing frequency-domain electromagnetic (FDEM) data that address systematic instrument errors and random noise are presented, improving the ability to invert these data for meaningful earth models that can be quantitatively interpreted. A least-squares calibration method, originally developed for airborne electromagnetic datasets, is implemented for a ground-based survey in...
Post-construction monitoring of a Core-Loc™ breakwater using tripod-based LiDAR
Jessica H. Podoski, Gerald W. Bawden, Sandra Bond, Thomas D. Smith, James Foster
2010, Book chapter, Coasts, marine structures and breakwaters: Adapting to change
The goal of the technology application described herein is to determine whether breakwater monitoring data collected using Tripod (or Terrestrial) Light Detection and Ranging (T-LiDAR) can give insight into processes such as how Core-Loc™ concrete armour units nest following construction, and in turn how settlement affects armour layer stability, concrete...
Establishing the Antarctic Dome C community reference standard site towards consistent measurements from Earth observation satellites
C. Cao, S. Uprety, J. Xiong, A. Wu, P. Jing, D. Smith, G. Chander, N. Fox, S. Ungar
2010, Canadian Journal of Remote Sensing (36) 498-513
Establishing satellite measurement consistency by using common desert sites has become increasingly more important not only for climate change detection but also for quantitative retrievals of geophysical variables in satellite applications. Using the Antarctic Dome C site (75°06′S, 123°21′E, elevation 3.2 km) for satellite radiometric calibration and validation (Cal/Val) is...
Feather lead concentrations and 207Pb/206Pb ratios reveal lead exposure history of California Condors (Gymnogyps californianus)
M.E. Finkelstein, D. George, S. Scherbinski, R. Gwiazda, M. Johnson, J. Burnett, J. Brandt, S. Lawrey, Allan P. Pessier, M.R. Clark, Janna Wynne, J. Grantham, D. R. Smith
2010, Environmental Science & Technology (44) 2639-2647
Lead poisoning is a primary factor impeding the survival and recovery of the critically endangered California Condor (Gymnogyps californianus). However, the frequency and magnitude of lead exposure in condors is not well-known in part because most blood lead monitoring occurs biannually, and biannual blood samples capture only ∼10% of a...
Population dynamics of the sand shiner (notropis stramineus) in non-wadeable rivers of Iowa
C. D. Smith, T.E. Neebling, M.C. Quist
2010, Journal of Freshwater Ecology (25) 617-626
The sand shiner (Notropis stramineus) is a common cyprinid found throughout the Great Plains region of North America that plays an important ecological role in aquatic systems. This study was conducted to describe population dynamics of sand shiners including age structure, growth, mortality, and recruitment variability in 15 non-wadeable rivers...
Using airborne geophysical surveys to improve groundwater resource management models
Jared D. Abraham, James C. Cannia, Steven M. Peterson, Bruce D. Smith, Burke J. Minsley, Paul A. Bedrosian
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
Increasingly, groundwater management requires more accurate hydrogeologic frameworks for groundwater models. These complex issues have created the demand for innovative approaches to data collection. In complicated terrains, groundwater modelers benefit from continuous high‐resolution geologic maps and their related hydrogeologic‐parameter estimates. The USGS and its partners have collaborated to use airborne...
Persistence of canine distemper virus in the Greater Yellowstone Ecosystem's carnivore community
Emily S. Almberg, Paul C. Cross, D.W. Smith
2010, Ecological Applications (20) 2058-2074
Canine distemper virus (CDV) is an acute, highly immunizing pathogen that should require high densities and large populations of hosts for long-term persistence, yet CDV persists among terrestrial carnivores with small, patchily distributed groups. We used CDV in the Greater Yellowstone ecosystem's (GYE) wolves (Canis lupus) and coyotes (Canis latrans)...
Reference condition approach to restoration planning
J.M. Nestler, C.H. Theiling, S.J. Lubinski, D.L. Smith
2010, River Research and Applications (26) 1199-1219
Ecosystem restoration planning requires quantitative rigor to evaluate alternatives, define end states, report progress and perform environmental benefits analysis (EBA). Unfortunately, existing planning frameworks are, at best, semi-quantitative. In this paper, we: (1) describe a quantitative restoration planning approach based on a comprehensive, but simple mathematical framework that can be...
Effect of imperfect detectability on adaptive and conventional sampling: Simulated sampling of freshwater mussels in the upper Mississippi River
D. R. Smith, B. R. Gray, T.J. Newton, D. Nichols
2010, Environmental Monitoring and Assessment (170) 499-507
Adaptive sampling designs are recommended where, as is typical with freshwater mussels, the outcome of interest is rare and clustered. However, the performance of adaptive designs has not been investigated when outcomes are not only rare and clustered but also imperfectly detected. We address this combination of challenges using data...
Efficient estimators for adaptive stratified sequential sampling
M. Salehi, M. Moradi, Jennifer Brown, David R. Smith
2010, Journal of Statistical Computation and Simulation (80) 1163-1179
In stratified sampling, methods for the allocation of effort among strata usually rely on some measure of within-stratum variance. If we do not have enough information about these variances, adaptive allocation can be used. In adaptive allocation designs, surveys are conducted in two phases. Information from the first phase is...
Preliminary results of the North American Soil Geochemical Landscapes Project, northeast United States and Maritime Provinces of Canada
Eric C. Grunsky, David B. Smith, Peter W.B. Friske, Laurel G. Woodruff
2009, Conference Paper, 24th International Applied Geochemistry Symposium
The results of a soil geochemical survey of the Canadian Maritime provinces and the northeast states of the United States are described. The data presented are for the <2-mm fraction of the surface layer (0-5 cm depth) and C horizons of the soil. Elemental determinations were made by ICP-MS following...
An incomplete analysis
David Smith, Eric M. Hallerman, Michael J. Millard, John A. Sweka, Richard G. Weber
2009, BioScience (59) 541-541
Niles and colleagues (2009) do not present all of the data relevant to the issues they address in the article they wrote for BioScience. They reference unnamed sources for pre-1997 horseshoe crab harvest to conclude that recent harvest exceeds historic harvest. In fact, reported landings from New Jersey, Delaware, Maryland,...
Test of a method to calculate near-bank velocity and boundary shear stress
Jason W. Kean, Roger A. Kuhnle, J. Dungan Smith, Carlos V. Alonso, Eddy J. Langendoen
2009, Journal of Hydraulic Engineering (135) 588-601
Helicopter Electromagnetic and Magnetic Geophysical Survey Data for Portions of the North Platte River and Lodgepole Creek, Nebraska, June 2008
Bruce D. Smith, Jared D. Abraham, James C. Cannia, Patricia Hill
2009, Open-File Report 2009-1110
This report is a release of digital data from a helicopter electromagnetic and magnetic survey that was conducted during June 2008 in areas of western Nebraska as part of a joint hydrologic study by the North Platte Natural Resource District, South Platte Natural Resource District, and U.S. Geological Survey. The...
U.S. Geological Survey Science for the Wyoming Landscape Conservation Initiative - 2008 Annual Report
Zachary H. Bowen, Cameron L. Aldridge, Patrick J. Anderson, Timothy J. Assal, Lori Anne Baer, R. Sky Bristol, Natasha B. Carr, Geneva W. Chong, Jay E. Diffendorfer, Bradley C. Fedy, Steven L. Garman, Steve Germaine, Richard I. Grauch, Collin G. Homer, Daniel J. Manier, Matthew J. Kauffman, Natalie Latysh, Cynthia P. Melcher, Kirk A. Miller, Jessica Montag, Constance J. Nutt, Christopher Potter, Hall Sawyer, David B. Smith, Michael J. Sweat, Anna B. Wilson
2009, Open-File Report 2009-1201
The Wyoming Landscape Conservation Initiative (WLCI) was launched in 2007 in response to concerns about threats to the State's world class wildlife resources, especially the threat posed by rapidly increasing energy development in southwest Wyoming. The overriding purpose of the WLCI is to assess and enhance aquatic and terrestrial habitats...
Geochemical studies of North American soils: results from the pilot study phase of the North American Soil Geochemical Landscapes Project
David B. Smith
2009, Applied Geochemistry (24) 1355-1356
No abstract available....
Analytical Results for Agricultural Soils Samples from a Monitoring Program Near Deer Trail, Colorado (USA)
J. G. Crock, D. B. Smith, T. J. B. Yager
2009, Open-File Report 2009-1111
Since late 1993, Metro Wastewater Reclamation District of Denver (Metro District, MWRD), a large wastewater treatment plant in Denver, Colorado, has applied Grade I, Class B biosolids to about 52,000 acres of nonirrigated farmland and rangeland near Deer Trail, Colorado, USA. In cooperation with the Metro District in 1993, the...
Analytical Results for Municipal Biosolids Samples from a Monitoring Program Near Deer Trail, Colorado (U.S.A.), 2008
J. G. Crock, D. B. Smith, T. J. B. Yager, C. J. Berry, M. G. Adams
2009, Open-File Report 2009-1090
Since late 1993, Metro Wastewater Reclamation District of Denver (Metro District), a large wastewater treatment plant in Denver, Colo., has applied Grade I, Class B biosolids to about 52,000 acres of nonirrigated farmland and rangeland near Deer Trail, Colo. (U.S.A.). In cooperation with the Metro District in 1993, the U.S....
Biosolids, Crop, and Ground-Water Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2004 Through 2006
Tracy J.B. Yager, David B. Smith, James G. Crock
2009, Data Series 379
From 2004 through 2006, the U.S. Geological Survey monitored the chemical composition of biosolids, crops, dust, and ground water related to biosolids applications near Deer Trail, Colorado, in cooperation with the Metro Wastewater Reclamation District. This monitoring effort was a continuation of the monitoring program begun in 1999 in cooperation...
Reply to the comment on "Geochemical gradients in soil O-horizon samples from southern Norway: Natural or anthropogenic?" by Eiliv Steinnes
C. Reimann, P. Englmaier, B. Flem, L. Gough, P. Lamothe, O. Nordgulen, D. Smith
2009, Applied Geochemistry (24) 2023-2025
[No abstract available]...
Geochemical gradients in soil O-horizon samples from southern Norway: Natural or anthropogenic?
C. Reimann, P. Englmaier, B. Flem, L. Gough, P. Lamothe, O. Nordgulen, D. Smith
2009, Applied Geochemistry (24) 62-76
Forty soil O- and C-horizon samples were collected along a south-to-north transect extending inland for approximately 200 km from the southern tip of Norway. The elements As, Au, Bi, Cd, Cu, Ga, Ge, Hf, Hg, In, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, V, W, Zn and Zr all...
Proximate causes of sexual size dimorphism in horseshoe crabs (Limulus Polyphemus) of the Delaware Bay
D. R. Smith, M.T. Mandt, P.D.M. Macdonald
2009, Journal of Shellfish Research (28) 405-417
The unresolved status of the proximate cause for sexual size dimorphism in horseshoe crabs has practical consequence, because harvest recommendations rely on assumptions about sex-specific growth and maturity. We propose and evaluate competing hypotheses for the proximate cause of sexual size dimorphism in horseshoe crabs (Limulus polyphemus) by comparing size...
Compact Reconnaissance Imaging Spectrometer for Mars investigation and data set from the Mars Reconnaissance Orbiter's primary science phase
S.L. Murchie, F.P. Seelos, C.D. Hash, D.C. Humm, E. Malaret, J.A. McGovern, T.H. Choo, K.D. Seelos, D.L. Buczkowski, M.F. Morgan, O. S. Barnouin-Jha, H. Nair, H.W. Taylor, G.W. Patterson, C.A. Harvel, J.F. Mustard, R. E. Arvidson, P. McGuire, M. D. Smith, M.J. Wolff, T.N. Titus, J.-P. Bibring, F. Poulet
2009, Journal of Geophysical Research E: Planets (114)
The part of the Compact Reconnaissance Imaging Spectrometer (CRISM) for Mars investigation conducted during the Mars Reconnaissance Orbiter's (MRO's) primary science phase was a comprehensive investigation of past aqueous environments, structure of the planet's crust, past climate, and current meteorology. The measurements to implement this investigation include over 9500 targeted...
