Shallow water table fluctuations in relation to soil penetration resistance
James B. Shanley, K. Niclas Hjerdt, Jeffrey J. McDonnell, Carol Kendall
2003, Groundwater (41) 964-972
Hydrologic modeling of catchments is frequently hampered by lack of information on subsurface stratigraphy and zones of preferred flow. We evaluated the usefulness of soil penetration resistance, easily measured by a dynamic cone penetrometer, together with measurements of ground water level fluctuations, as a cost-effective means to infer subsurface flow...
The effect of time on the weathering of silicate minerals: Why do weathering rates differ in the laboratory and field?
Arthur F. White, Susan L. Brantley
2003, Chemical Geology (202) 479-506
The correlation between decreasing reaction rates of silicate minerals and increasing duration of chemical weathering was investigated for both experimental and field conditions. Column studies, using freshly prepared Panola Granite, produced ambient plagioclase weathering rates that decreased parabolically over 6 years to a final rate of 7.0×10−14 mol m−2 s−1. In...
A strategy for mapping mid-scale existing vegetation in support of national fire fuel assessment
Chengquan Huang, James Vogelmann, Brian L. Tolk, James P. Menakis, Gretchen G. Moisen
2003, Conference Paper, Technology- Converging at the top of the world
Geospatial distribution of natural vegetation is among the very important environmental parameters required for applications ranging from global climate change to monitoring of natural hazards, monitoring of ecosystem vitality, and fire management practices. Increasingly sophisticated applications require vegetation datasets to cover large areas at a suitable scale and provide sufficiently...
Exploration of satellite-measured vegetation seasonality for Landfire land cover
James Vogelmann, Chengquan Huang, Brian L. Tolk, Gretchen G. Moisen, Zhiliang Zhu
2003, Conference Paper, Technology- Converging at the top of the world
The purpose of this study is to explore the use of satellite data and other sources of spatial data for large area classification in the western United States to support research on potential fire hazards. Extensive field information was made available to this project from two sources: Forest Inventory and...
Deriving rangeland structural attributes using Landsat ETM+, ERS-1/ERS-2
Brian L. Tolk, Chengquan Huang, Zhong Lu, Russell P. Rykhus, James Vogelmann
2003, Conference Paper, Technology- Converging at the top of the world
The purpose of this study is to determine if Synthetic Aperture Radar (SAR) can be used independently, or in conjunction with Landsat Enhanced Thematic Mapper Plus (ETM+) to improve the classification accuracy of structural attributes of rangeland vegetation, particularly percent shrub cover and top shrub canopy height. Such information, if...
A simplified algorithm for temperature conversions
Victor G. Mossotti
2003, Journal of Chemical Education (80) 1380-1380
The author is surprised that those who teach temperature conversion formulas have not introduced the easier-to-retain relationship based on the fact that –40 F° is the same temperature as –40 C°....
A comparison of spectral and spatial characteristics of Landsat 7 ETM+ with Terra ASTER imagery
Paula F. Smit, Zheng Zhang, Bhaskar Ramachandran
2003, Conference Paper, Technology- Converging at the top of the world
No abstract available....
Studies of Alaskan volcanoes using synthetic aperature radar and Landsat imagery
Russell P. Rykhus, Zhong Lu
2003, Conference Paper, Technology- Converging at the top of the world
Approximately 10 percent of the world’s active volcanoes are located in the Alaskan Aleutian arc and produce about 3-4 explosive eruptions per year. Even with this high amount of volcanic activity, the remote locations and harsh environments of the Aleutian volcanoes conspire to keep them among some of the most...
Delivering data for The National Map
Chris Rusanowski
2003, Conference Paper, Technology- Converging at the top of the world
The National Map aims at delivering current, nationwide views of regional and local data, synthesized into a single presentation. A key method of achieving this is the use of satellite data, aerial photographs, and derivative products to maintain up-to-date maps. The Earth Resources Observation Systems (EROS) Data Center (EDC) archives...
Predictive modeling of forest cover type and tree canopy height in the central Rocky Mountains of Utah
Gretchen G. Moisen, T.S. Frescino, Chengquan Huang, James Vogelmann, Zhiliang Zhu
2003, Conference Paper, Technology—Converging at the top of the world
Maps of forest cover type and canopy height are needed for LANDFIRE, a multi-scale fire risk assessment project designed to generate intermediate-resolution data of vegetation and fire fuel characteristics for the U.S. Here we describe an evaluation study in the central Rockies of Utah, comparing tree-based methods, multivariate adaptive regression...
Multiple causes for the malformed frog phenomenon
M.J. Lannoo, D.R. Sutherland, P. Jones, Donald O. Rosenberry, Robert W. Klaver, D.M. Hoppe, P.T.J. Johnson, K.B. Lunde, C. Facemire, J.M. Kapfer
G. Linder, S. Krest, D. Sparling, editor(s)
2003, Book chapter, Multiple stressor effects in relation to declining amphibian populations
Progress has been made in understanding the malformed frog problem, yet we still cannot identify with assurance specific causes of malformations at particular locations. To address this problem we assembled a team of specialists and present here results on geographic distribution, water quality, parasite infection, and morphological patterns from Minnesota...
Deriving annual integrated NDVI greenness at 30 m spatial resolution
Chengquan Huang, Brian L. Tolk, James Vogelmann, Michelle L. Knuppe, Zhiliang Zhu
2003, Conference Paper, Technology - Converging at the top of the world
Temporal greenness matrics have been found useful for characterizing vegetation phenology, and have been used to discriminate vegetation cover types and to estimate key vegetation attributes including percent cover and green biomass. So far, however, such matrics have been calculated only from coarse resolution satellite data. Intermediate spatial resolution satellites...
Image processing for the removal and data generation of cloud covered areas through classification and regression tree (cart) analysis
Nathaniel Herold, D. Cunningham, Bruce K. Wylie
2003, Conference Paper, Technology- Converging at the top of the world
No abstract available....
Comparing satellite rainfall estimates and reanalysis precipitation fields with station data for western Kenya
Chris Funk, James Verdin
2003, Conference Paper
No abstract available....
Alaska resource data file: McCarthy quadrangle
Travis L. Hudson
2003, Open-File Report 2003-404
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Alaska resource data file: Nabesna quadrangle
Travis L. Hudson
2003, Open-File Report 2003-446
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Residence times and nitrate transport in ground water discharging to streams in the Chesapeake Bay Watershed
Bruce D. Lindsey, Scott Phillips, Colleen A. Donnelly, Gary K. Speiran, Niel Plummer, John Karl Bohlke, Michael J. Focazio, William C. Burton, Eurybiades Busenberg
2003, Water-Resources Investigations Report 2003-4035
One of the major water-quality problems in the Chesapeake Bay is an overabundance of nutrients from the streams and rivers that discharge to the Bay. Some of these nutrients are from nonpoint sources such as atmospheric deposition, agricultural manure and fertilizer, and septic systems. The effects of efforts to control...
Alaska resource data file: Wiseman quadrangle
Joe M. Britton
2003, Open-File Report 2003-447
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Questa baseline and pre-mining ground water investigation: 11. Geochemistry of composited material from alteration scars and mine-waste piles
Paul H. Briggs, S. J. Sutley, Keith Eric Livo
2003, Open-File Report 2003-458
Composited, surficial material was collected from alteration scars, a less intensely altered site, and mine-waste piles. All samples were analyzed for forty elements by inductively coupled plasma-atomic emission spectrometry, total sulfur and quantitative X-ray diffraction. This work was performed in cooperation with the New Mexico Environment Department....
Final report VETEM (Very Early Time Electromagnetic) system survey of Pit 4 and Pit 10 subsurface disposal area, Radioactive Waste Management Complex, Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID
Jared D. Abraham, David Von G. Smith, David L. Wright
2003, Open-File Report 2003-140
No abstract available....
Field and laboratory data from an earthquake history study of the Waterman Point Fault, Kitsap County, Washington
Alan R. Nelson, Samuel Y. Johnson, Harvey M. Kelsey, Brian L. Sherrod, Ray E. Wells, Koji Okumura, Lee-Ann Bradley, Robert Bogar, Stephen F. Personius
2003, Miscellaneous Field Studies Map 2423
Assessment of the undiscovered oil and gas of the Senegal province, Mauritania, Senegal, the Gambia, and Guinea-Bissau, northwest Africa
Michael E. Brownfield, Ronald R. Charpentier
2003, Bulletin 2207-A
Undiscovered, conventional oil and gas resources were assessed in the Senegal Province as part of the U.S. Geological Survey World Petroleum Assessment 2000 (U.S. Geological Survey World Energy Assessment Team, 2000). Although several total petroleum systems may exist in the province, only one composite total petroleum system, the Cretaceous-Tertiary Composite Total Petroleum...
Streambed adjustment and channel widening in eastern Nebraska
David L. Rus, Benjamin J. Dietsch, Andrew Simon
2003, Water-Resources Investigations Report 2003-4003
In eastern Nebraska, stream straightening and dredging efforts since the 1890s have disturbed the natural equilibrium of stream channels and have led to streambed adjustment by degradation and subsequent channel widening. This report describes a study to evaluate the effect these disturbances have had on stream channels in eastern Nebraska....
Hawaii's volcanoes revealed
Barry W. Eakins, Joel E. Robinson, Toshiya Kanamatsu, Jiro Naka, John R. Smith, Eiichi Takahashi, David A. Clague
2003, IMAP 2809
Hawaiian volcanoes typically evolve in four stages as volcanism waxes and wanes: (1) early alkalic, when volcanism originates on the deep sea floor; (2) shield, when roughly 95 percent of a volcano's volume is emplaced; (3) post-shield alkalic, when small-volume eruptions build scattered cones that thinly cap the shield-stage lavas;...
Geologic and Hydrogeologic Framework of the Espanola Basin -- Proceedings of the 2nd Annual Espanola Basin Workshop, Santa Fe, New Mexico, March 4-5, 2003
Mark R. Hudson
2003, Open-File Report 2003-369
