Methods of InSAR atmosphere correction for volcano activity monitoring
W. Gong, F. Meyer, P.W. Webley, Z. Lu
2011, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
When a Synthetic Aperture Radar (SAR) signal propagates through the atmosphere on its path to and from the sensor, it is inevitably affected by atmospheric effects. In particular, the applicability and accuracy of Interferometric SAR (InSAR) techniques for volcano monitoring is limited by atmospheric path delays. Therefore, atmospheric correction of...
Environmental endocrinology of salmon smoltification
Bjorn Thrandur Bjornsson, S.O. Stefansson, S. D. McCormick
2011, General and Comparative Endocrinology (170) 290-298
Smolting is a hormone-driven developmental process that is adaptive for downstream migration and ocean survival and growth in anadromous salmonids. Smolting includes increased salinity tolerance, increased metabolism, downstream migratory and schooling behavior, silvering and darkened fin margins, and olfactory imprinting....
Rapid assessment of rice seed availability for wildlife in harvested fields
B.J. Halstead, M. R. Miller, Michael L. Casazza, P.S. Coates, M.A. Farinha, K. Benjamin Gustafson, J.L. Yee, J. P. Fleskes
2011, Wildlife Society Bulletin (35) 377-393
Rice seed remaining in commercial fields after harvest (waste rice) is a critical food resource for wintering waterfowl in rice-growing regions of North America. Accurate and precise estimates of the seed mass density of waste rice are essential for planning waterfowl wintering habitat extents and management. In the Sacramento Valley...
Wind River watershed restoration, annual report November 2009 to October 2010.
P.J. Connolly, I.G. Jezorek
2011, Report
This report summarizes work completed by U.S. Geological Survey’s Columbia River Research Laboratory (USGS-CRRL) in the Wind River subbasin during the period November 2009 through October 2010 under Bonneville Power Administration (BPA) contract 46102. Long term research in the Wind River has focused on assessments of steelhead/rainbow trout Oncorhynchus mykiss...
Diet and population metrics of the introduced blue catfish population in the Altamaha, River, GA
Timothy F. Bonvechio, Cecil A. Jennings
2011, Conference Paper, Proceedings of the Southeastern Association of Fish and Wildlife Agencies
Blue catfish (Ictalurus furcatus) were first detected in the Altamaha River, Georgia, during an access creel survey in 2005 and subsequently in 2006 during annual ictalurid sampling. Introduction of this species in the Altamaha River is believed to have occurred via escape from normal upstream reservoir releases from Lake Sinclair...
Quantifying the influence of sea ice on ocean microseism using observations from the Bering Sea, Alaska
V.C. Tsai, D.E. McNamara
2011, Geophysical Research Letters (38)
Microseism is potentially affected by all processes that alter ocean wave heights. Because strong sea ice prevents large ocean waves from forming, sea ice can therefore significantly affect microseism amplitudes. Here we show that this link between sea ice and microseism is not only a robust one but can be...
The effects of myxobolus cerebralis on the physiological performance of whirling disease resistant and susceptible strains of rainbow trout
E.R. Fetherman, Christopher A. Myrick, D.L. Winkelman, G.J. Schisler
2011, Journal of Aquatic Animal Health (23) 169-177
The development of rainbow trout Oncorhynchus mykiss strains that are resistant to whirling disease has shown promise as amanagement tool for populationsin areas where Myxobolus cerebralisis present. However, the physiological effects of the disease on characteristics necessary for fish survival in natural river conditions have not been tested in many...
Effect of dietary salt on migration and survival of yearling steelhead produced at Iron Gate Hatchery, Klamath River, 2009
S. Juhnke, H. Hansel, Katrina Wright Katrina, N. Hetrick N.
2011, Report
We surgically implanted radio transmitters into 30 hatchery yearling steelhead (Oncorhynchus mykiss) released from Iron Gate Hatchery during the spring of 2009 to improve our understanding of the effect of dietary salt on their out-migration and survival. Steelhead yearlings were divided into two feed treatments to test the efficacy of...
Earth observing data and methods for advancing water harvesting technologies in the semi-arid rain-fed environments of India
C. Sharma, P. Thenkabail, R. R. Sharma
2011, Conference Paper, Proceedings - 2011 IEEE Global Humanitarian Technology Conference, GHTC 2011
The paper develops approaches and methods of modeling and mapping land and water productivity of rain-fed crops in semi-arid environments of India using hyperspectral, hyperspatial, and advanced multispectral remote sensing data and linking the same to field-plot data and climate station data. The overarching goal is to provide information to...
A predator-prey model with a holling type I functional response including a predator mutual interference
G. Seo, D.L. DeAngelis
2011, Journal of Nonlinear Science (21) 811-833
The most widely used functional response in describing predator-prey relationships is the Holling type II functional response, where per capita predation is a smooth, increasing, and saturating function of prey density. Beddington and DeAngelis modified the Holling type II response to include interference of predators that increases with predator density....
Geodetic slip model of the 2011 M9.0 Tohoku earthquake
Frederick Pollitz, Roland Burgmann, Paramesh Banerjee
2011, Geophysical Research Letters (38)
The three-dimensional crustal displacement field as sampled by GPS is used to determine the coseismic slip of the 2011 M9.0 Tohoku Earthquake. We employ a spherically layered Earth structure and use a combination of onland GPS, out to ∼4000 km from the rupture, and offshore GPS, which samples the high-slip...
Thermal removal from near-infrared imaging spectroscopy data of the Moon
Roger N. Clark, Carle M. Pieters, Robert O. Green, J.W. Boardman, Noah E. Petro
2011, Journal of Geophysical Research E: Planets (116) 1-9
In the near-infrared from about 2 μm to beyond 3 μm, the light from the Moon is a combination of reflected sunlight and emitted thermal emission. There are multiple complexities in separating the two signals, including knowledge of the local solar incidence angle due to topography, phase angle dependencies, emissivity, and instrument...
Stratigraphy and chronology of offshore to nearshore deposits associated with the Provo shoreline, Pleistocene Lake Bonneville, Utah
Holly S. Godsey, Charles G. Oviatt, David M. Miller, Marjorie A. Chan
2011, Palaeogeography, Palaeoclimatology, Palaeoecology (310) 442-450
Stratigraphic descriptions and radiocarbon data from eleven field locations are presented in this paper to establish a chronostratigraphic framework for offshore to nearshore deposits of Lake Bonneville. Based on key marker beds and geomorphic position, the deposits are interpreted to have accumulated during the period from the late transgressive phase,...
Rainfall infiltration-induced landslides
Brian D. Collins, Dobroslav Znidarcic
2011, Geostrata
Unfavorable groundwater conditions are often the determining factor in triggering landslides. Whereas regional hydrogeology typically determines overall groundwater conditions, surficial rainfall infiltration into slopes also drives potential instability....
Chapter 3: Changes to the Wyoming Basins landscape from oil and natural gas development
Sean P. Finn, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Oil and natural gas have been produced in Wyoming since the late 1800s although the rate of extraction has increased substantially in the last two decades. Well pads, roads, and infrastructure built to support resource development alter native vegetation configuration; however, the rate and effect of land cover change resulting...
Mechanical analysis of fault slip data: Implications for paleostress analysis
J. Ole Kaven, F. Maerten, D. D. Pollard
2011, Journal of Structural Geology (33) 78-91
Stress inversions are a useful and popular tool for structural geologist and seismologist alike. These methods were first introduced by Wallace (1951) and Bott (1959) and subsequent studies continue to be based on their assumptions: the remote stress tensor is spatially uniform for the rock mass containing the faults and temporally constant over the history of...
Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States
B. G. Katz, S. M. Eberts, L. J. Kauffman
2011, Journal of Hydrology (397) 151-166
A detailed review was made of chemical indicators used to identify impacts from septic tanks on groundwater quality. Potential impacts from septic tank leachate on groundwater quality were assessed using the mass ratio of chloride–bromide (Cl/Br), concentrations of selected chemical constituents, and ancillary information (land use, census data, well...
Response to King and Baker: Limitations on threshold detection and characterization of community thresholds
Thomas F. Cuffney, Song S. Qian, Robin A. Brightbill, Jason T. May, Ian R. Waite
2011, Ecological Applications (21) 2840-2845
No abstract available....
Proceedings of the 24th Pacific climate workshop (PACLIM): Introduction
Scott W. Starratt
2011, Quaternary International (235) 1-2
No abstract available....
Water quality and trophic status of Fort Cobb Reservoir, southwestern Oklahoma, 2016: Chapter 8 in Assessment of conservation practices in the Fort Cobb Reservoir watershed, southwestern Oklahoma
James F. Fairchild, Ann L. Allert, Kathy R. Echols
2011, Scientific Investigations Report 2010-5257-8
Eutrophication of reservoirs frequently occurs because of excessive nutrient inputs caused by anthropogenic activities, including row-crop agriculture. The trophic status of Fort Cobb Reservoir, Oklahoma, was assessed in April, July, and September 2006. The Fort Cobb Reservoir was highly eutrophic, with the greatest concentrations of nutrients and chlorophyll-a being measured...
Paleozoic stratigraphy and kinematics of the Roberts Mountains allochthon in the Independence Mountains, northern Nevada
Christopher S. Holm-Denoma, Albert H. Hofstra, Stephen A. Leslie, Paula J. Noble
Roger Steininger, Bill Pennell, editor(s)
2011, Conference Paper, Great Basin evolution and metallogeny: 2010 symposium proceedings
New biostratigraphic, stratigraphic, and structural data from deformed lower Paleozoic sedimentary units of the Roberts Mountains allochthon (RMA), Independence Mountains, Nevada, have enabled the identification of stratigraphic units within the allochthon that range in age from Late Cambrian through Late Devonian. The McAfee thrust fault emplaced a relatively thick (>200...
'Forensic' geochemical approaches to constrain the source of Au-Ag in low-sulfidation epithermal ores
James A. Saunders, G. D. Kamenov, Albert H. Hofstra, D. L. Unger, R. A. Creaser, F. Barra
Roger Steininger, Bill Pennell, editor(s)
2011, Conference Paper, Great Basin evolution and metallogeny: 2010 symposium proceedings
In order to better constrain genetic processes involved in forming mineral deposits (and ultimately exploration models), it helps to know from where the metals of interest are derived. How the metals arrived at their point of deposition, and why they were deposited there, are separate issues. We are using three...
Source identification of Florida Bay's methylmercury problem: Mainland runoff versus atmospheric deposition and in situ production
Darren G. Rumbold, David W. Evans, Sharon Niemczyk, Larry E. Fink, Krysten A. Laine, Nicole Howard, David P. Krabbenhoft, Mark Zucker
2011, Estuaries and Coasts (34) 494-513
The first advisory to limit consumption of Florida Bay fish due to mercury was issued in 1995. Studies done by others in the late 1990s found elevated water column concentrations of both total Hg (THg) and methylmercury (MeHg) in creeks discharging from the Everglades, which had its own recognized mercury...
Habits and Habitats of Fishes in the Upper Mississippi River
R. Norwick, J. Janvrin, S. Zigler, R. Kratt
2011, Report
The Upper Mississippi River consists of 26 navigation pools that provide abundant habitat for a host of natural resources, such as fish, migratory waterfowl, non-game birds, deer, beaver, muskrats, snakes, reptiles, frogs, toads, salamanders, and many others. Of all the many different types of animals that depend on the river,...
Flooding and Flood Management
K.N. Brooks, J. D. Fallon, D. L. Lorenz, J. R. Stark, Jason Menard
K.W. Easter, Jim Perry, editor(s)
2011, Book chapter, Water policy in Minnesota--Issues, incentives, and action
Floods result in great human disasters globally and nationally, causing an average of $4 billion of damages each year in the United States. Minnesota has its share of floods and flood damages, and the state has awarded nearly $278 million to local units of government for flood mitigation projects through...
