Assessment of crop growth and soil water modules in SWAT2000 using extensive field experiment data in an irrigation district of the Yellow River Basin
Y. Luo, C. He, M. Sophocleous, Z. Yin, R. Hongrui, Z. Ouyang
2008, Journal of Hydrology (352) 139-156
SWAT, a physically-based, hydrological model simulates crop growth, soil water and groundwater movement, and transport of sediment and nutrients at both the process and watershed scales. While the different versions of SWAT have been widely used throughout the world for agricultural and water resources applications, little has been done to...
Differences in evaporation between a floating pan and class a pan on land
J.R. Masoner, D.I. Stannard, S. C. Christenson
2008, Journal of the American Water Resources Association (44) 552-561
Research was conducted to develop a method for obtaining floating pan evaporation rates in a small (less than 10,000 m2) wetland, lagoon, or pond. Floating pan and land pan evaporation data were collected from March 1 to August 31, 2005, at a small natural wetland located in the alluvium of the...
Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.
S.J. Culver, K.M. Farrell, D. J. Mallinson, B. P. Horton, Debra A. Willard, E.R. Thieler, S.R. Riggs, S.W. Snyder, J.F. Wehmiller, C.E. Bernhardt, C. Hillier
2008, Palaeogeography, Palaeoclimatology, Palaeoecology (264) 54-77
Micropaleontological data provide a strong actualistic basis for detailed interpretations of Quaternary paleoenvironmental change. The 90 m-thick Quaternary record of the Albemarle Embayment in the mid-Atlantic coastal plain of the USA provides an excellent opportunity to use such an approach in a region where the details of Quaternary environmental change are...
Six years of land subsidence in shanghai revealed by JERS-1 SAR data
P. Damoah-Afari, X.-L. Ding, Z. Li, Z. Lu, M. Omura
2008, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
Differential interferometric synthetic aperture radar (SAR) (DInSAR) has proven to be very useful in mapping and monitoring land subsidence in many regions of the world. Shanghai, China's largest city, is one of such areas suffering from land subsidence as a result of severe withdrawal of groundwater for different usages. DInSAR...
Seasonal changes in submarine groundwater discharge to coastal salt ponds estimated using 226Ra and 228Ra as tracers
A.L. Hougham, S.B. Moran, John P. Masterson, R.P. Kelly
2008, Marine Chemistry (109) 268-278
Submarine groundwater discharge (SGD) to coastal southern Rhode Island was estimated from measurements of the naturally-occurring radioisotopes 226Ra (t1/2 = 1600??y) and 228Ra (t1/2 = 5.75??y). Surface water and porewater samples were collected quarterly in Winnapaug, Quonochontaug, Ninigret, Green Hill, and Pt. Judith-Potter Ponds, as well as nearly monthly in...
A fully distributed implementation of mean annual streamflow regional regression equations
K.L. Verdin, B. Worstell
2008, Journal of the American Water Resources Association (44) 1537-1547
Estimates of mean annual streamflow are needed for a variety of hydrologic assessments. Away from gage locations, regional regression equations that are a function of upstream area, precipitation, and temperature are commonly used. Geographic information systems technology has facilitated their use for projects, but traditional approaches using the polygon overlay...
Transport of elemental mercury in the unsaturated zone from a waste disposal site in an arid region
Michelle Ann Walvoord, Brian J. Andraski, D. P. Krabbenhoft, Robert G. Striegl
2008, Applied Geochemistry (23) 572-583
Mercury contained in buried landfill waste may be released via upward emission to the atmosphere or downward leaching to groundwater. Data from the US Geological Survey’s Amargosa Desert Research Site (ADRS) in arid southwestern Nevada reveal another potential pathway of Hg release: long-distance (102 m) lateral migration of elemental Hg (Hg0)...
Overcompensatory response of a smallmouth bass (Micropterus dolomieu) population to harvest: Release from competition?
E.F. Zipkin, P.J. Sullivan, E.G. Cooch, C.E. Kraft, B.J. Shuter, B.C. Weidel
2008, Canadian Journal of Fisheries and Aquatic Sciences (65) 2279-2292
An intensive seven-year removal of adult, juvenile, and young-of-the-year smallmouth bass (Micropterus dolomieu) from a north temperate lake (Little Moose Lake, New York, USA) resulted in an increase in overall population abundance, primarily due to increased abundance of immature individuals. We developed a density-dependent, stage-structured model to examine conditions under...
Detection of foliage-obscured vehicle using a multiwavelength polarimetric lidar
S. Tan, J. Stoker, S. Greenlee
2008, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
Foliage obscured man-made targets detection and identification is of great interest to many applications. In this paper, the backscattered laser signals from a multiwavelength polarimetric lidar were used to detect a vehicle hidden inside a vegetated area. The polarimetric reflectance data from the lidar at two separate laser wavelengths at...
Demography and movement in a relocated population of Oregon Spotted Frogs (Rana pretiosa): Influence of season and gender
N.D. Chelgren, C.A. Pearl, M.J. Adams, J. Bowerman
2008, Copeia 742-751
We used five years of recapture data and Bayesian estimation to assess seasonal survival, movement, and growth of Oregon Spotted Frogs (Rana pretiosa) relocated into created ponds at Dilman Meadow in Oregon, USA. We evaluate hypotheses specific to the relocation and elucidate aspects of R. pretiosa life history that are...
Demography and ecology of mangrove diamondback terrapins in a wilderness area of Everglades National Park, Florida, USA
K.M. Hart, C.C. McIvor
2008, Copeia 200-208
Diamondback Terrapins (Malaclemys terrapin) are distributed in brackish water habitats along the U.S. east coast from Massachusetts to Texas, but many populations may be in decline. Whereas ample morphological, behavioral, and reproductive information has been collected for terrapins living in temperate salt marsh habitats, comparatively little is known about mangrove...
(U-Th)/He dating of kimberlites-A case study from north-eastern Kansas
T.J. Blackburn, D.F. Stockli, R. W. Carlson, P. Berendsen
2008, Earth and Planetary Science Letters (275) 111-120
Dating kimberlite intrusive rocks by radiogenic isotope geochronology often is a difficult task, complicated by both the lack of dateable minerals within kimberlite as well as significant sample alteration that can degrade samples and alter parent-daughter ratios. This study presents a new geochronologic tool for timing the emplacement of kimberlites...
Development of a standard reference material for Cr(vi) in contaminated soil
S.J. Nagourney, S. A. Wilson, B. Buckley, H.M.S. Kingston, S.-Y. Yang, S.E. Long
2008, Journal of Analytical Atomic Spectrometry (23) 1550-1554
Over the last several decades, considerable contamination by hexavalent chromium has resulted from the land disposal of Chromite Ore Processing Residue (COPR). COPR contains a number of hexavalent chromium-bearing compounds that were produced in high temperature industrial processes. Concern over the carcinogenic potential of this chromium species, and its environmental...
Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho
T.R. Maret, D.E. MacCoy, D.M. Carlisle
2008, Journal of the American Water Resources Association (44) 1248-1269
Water quality and macroinvertebrate assemblage data from 1981 to 2005 were assessed to evaluate the water quality and biological responses of a western trout stream to the implementation of multiple best management practices (BMPs) on irrigated cropland. Data from Rock Creek near Twin Falls, Idaho, a long-term monitoring site, were...
The experimental basis for interpreting particle and magnetic fabrics of sheared till
N.R. Iverson, T.S. Hooyer, J.F. Thomason, M. Graesch, J.R. Shumway
2008, Earth Surface Processes and Landforms (33) 627-645
Particle fabrics of basal tills may allow testing of the bed-deformation model of glacier flow, which requires high bed shear strains (>100). Field studies, however, have not yielded a systematic relationship between shear-strain magnitude and fabric development. To isolate this relationship four basal tills and viscous putty were sheared in...
The effects of layers in dry snow on its passive microwave emissions using dense media radiative transfer theory based on the quasicrystalline approximation (QCA/DMRT)
D. Liang, X. Xu, L. Tsang, K.M. Andreadis, E.G. Josberger
2008, IEEE Transactions on Geoscience and Remote Sensing (46) 3663-3671
A model for the microwave emissions of multilayer dry snowpacks, based on dense media radiative transfer (DMRT) theory with the quasicrystalline approximation (QCA), provides more accurate results when compared to emissions determined by a homogeneous snowpack and other scattering models. The DMRT model accounts for adhesive aggregate effects, which leads...
Postearthquake relaxation after the 2004 M6 Parkfield, California, earthquake and rate-and-state friction
J.C. Savage, J. Langbein
2008, Journal of Geophysical Research B: Solid Earth (113)
An unusually complete set of measurements (including rapid rate GPS over the first 10 days) of postseismic deformation is available at 12 continuous GPS stations located close to the epicenter of the 2004 M6.0 Parkfield earthquake. The principal component modes for the relaxation of the ensemble of those 12 GPS...
Joint variability of global runoff and global sea surface temperatures
G.J. McCabe, D.M. Wolock
2008, Journal of Hydrometeorology (9) 816-824
Global land surface runoff and sea surface temperatures (SST) are analyzed to identify the primary modes of variability of these hydroclimatic data for the period 1905-2002. A monthly water-balance model first is used with global monthly temperature and precipitation data to compute time series of annual gridded runoff for the...
Fidelity and breeding probability related to population density and individual quality in black brent geese Branta bernicla nigricans
James S. Sedinger, N.D. Chelgren, David H. Ward, M. S. Lindberg
2008, Journal of Animal Ecology (77) 702-712
1. Patterns of temporary emigration (associated with non-breeding) are important components of variation in individual quality. Permanent emigration from the natal area has important implications for both individual fitness and local population dynamics. 2. We estimated both permanent and temporary emigration of black brent geese (Branta bernicla nigricans Lawrence) from...
Observations and interpretation of fundamental mode Rayleigh wavefields recorded by the Transportable Array (USArray)
F. F. Pollitz
2008, Journal of Geophysical Research B: Solid Earth (113)
Broadband recordings of the dense Transportable Array (TA) in the western United States provide unparalleled detailed images of long-period seismic surface wavefields. With 400 stations spanning most of the western United States, wavefronts of fundamental mode Rayleigh waves may be visualized coherently across the array at periods ???40 s. In...
Strong-motion data from the two Pingtung, Taiwan, earthquakes of 26 December 2006
C.-F. Wu, W.H.K. Lee, D.M. Boore
2008, Terrestrial, Atmospheric and Oceanic Sciences (19) 595-639
1016 strong-motion records at 527 free-field stations and 131 records at 42 strong-motion arrays at buildings and bridges were obtained for the Pingtung earthquake doublet from the Taiwan Central Weather Bureau's dense, digital strong-motion network. We carried out standard processing of these strong-motion records at free-field stations. A data set,...
Seasonal variation in sensitivity of larval sea lampreys to the lampricide 3-trifluoromethyl-4-nitrophenol
R.J. Scholefield, K.S. Slaght, B.E. Stephens
2008, North American Journal of Fisheries Management (28) 1609-1617
We evaluated the sensitivity of larval sea lampreys Petromyzon marinus to the lampricide 3-trifluoromethyl-4-nitrophenol (TFM) in a series of toxicity tests in spring and summer. Although noted previously, the seasonal variation in sensitivity to TFM had never been tested as a means of reducing TFM usage in stream treatments. A...
Reply to comments by Mastalerz, V. on "Shallow gasoff the Rhône prodelta, Gulf of Lions" Marine Geology 234 (215-231)
Ana Garcia-Garcia, Daniel L. Orange, T.D. Lorenson, Olivier Radakovitch, Tommaso Tesi, Stefano Miserocchi, Serge Berne, Patrick Friend, Chuck Nittrouer, Alain Normand
2008, Marine Geology (248) 118-121
We really appreciate the interest and comments regarding our manuscript. We hope we address all the lingering issues in this reply. This also gives us the opportunity of publishing an update on our dataset that will complete the original manuscript (see Table 1). We have followed the...
Geographical and climatic limits of needle types of one- and two-needled pinyon pines
K.L. Cole, J. Fisher, S.T. Arundel, J. Cannella, S. Swift
2008, Journal of Biogeography (35) 257-269
Aim: The geographical extent and climatic tolerances of one- and two-needled pinyon pines (Pinus subsect. Cembroides) are the focus of questions in taxonomy, palaeoclimatology and modelling of future distributions. The identification of these pines, traditionally classified by one- versus two-needled fascicles, is complicated by populations with both one- and two-needled...
Characterization and cycling of atmospheric mercury along the central US Gulf Coast
M.A. Engle, M.T. Tate, D. P. Krabbenhoft, A. Kolker, M.L. Olson, E.S. Edgerton, J.F. DeWild, A.K. McPherson
2008, Applied Geochemistry (23) 419-437
Concentrations of atmospheric Hg species, elemental Hg (Hg∘), reactive gaseous Hg (RGM), and fine particulate Hg (Hg-PM2.5) were measured at a coastal site near Weeks Bay, Alabama from April to August, 2005 and January to May, 2006. Mean concentrations of the species were...
