Sources and migration pathways of natural gas in near-surface ground water beneath the Animas River valley, Colorado and New Mexico
Daniel T. Chafin
1994, Water-Resources Investigations Report 94-4006
In July 1990, the U.S. Geological Survey began a study of the occurrence of natural gas in near-surface ground water in the Animas River valley in the San Juan Basin between Durango, Colorado, and Aztec, New Mexico. The general purpose of the study was to identify the sources and migration...
Hawaiian Volcano Observatory summary 88. Part 1 seismic data, January to December 1988
J. S. Nakata, A. H. Tomori, J. P. Tokuuke, R. Y. Koyanagi, W. R. Tanigawa, P. G. Okubo, T. L. Wright
1994, Open-File Report 94-169
No abstract available....
Extraction of spatial information from remotely sensed image data - an example: gloria sidescan sonar images
Pat S. Chavez Jr., James V. Gardner
1994, Canadian Journal of Remote Sensing (20) 443-453
A method to extract spatial amplitude and variability information from remotely sensed digital imaging data is presented. High Pass Filters (HPFs) are used to compute both a Spatial Amplitude Image/Index (SAI) and Spatial Variability Image/Index (SVI) at the local, intermediate, and regional scales. Used as input to principal component analysis...
Data report for piggyback wide-angle recordings of the 1993 San Francisco Bay area, California, seismic refraction experiment
T.M. Brocher
1994, Open-File Report 94-448
Water resources data, Oklahoma, water year 1993: Volume 1. Arkansas River Basin
R.L. Blazs, D.M. Walters, T.E. Coffey, D.K. White, D.L. Boyle, J.F. Kerestes
1994, Water Data Report OK-93-1
Volumes 1 and 2 of the water resources data for the 1993 water year for Oklahoma consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes or reservoirs; and water levels of ground-water wells. This report contains discharge records for 135 gaging...
Helping the public find information the U.S. Government Information Locator Service (GILS)
E.J. Christian
1994, Journal of Government Information (21) 305-314
As part of the National Information Infrastructure, the U.S. federal government is establishing a Government Information Locator Service (GILS). GILS will identify and describe public information resources throughout the federal government and provide assistance in obtaining the information. It will be decentralized and will supplement other agency and commercial information...
Use of long-term tritium records from the Colorado River to determine timescales for hydrologic processes associated with irrigation in the Imperial Valley, California
Robert L. Michel, R.A. Schoeder
1994, Applied Geochemistry (9) 387-401
Tritium records were used to study hydrologic processes associated with irrigation and drainage in the Imperial Valley, a 2000-km2 agricultural area in the southeastern California desert. Tritium was analyzed in surface water, ground water, soil-pore water and drain water, and the results were compared to the historical record of tritium in...
Hydrochemistry of the Mahomet Bedrock Valley Aquifer, East-Central Illinois: Indicators of recharge and ground-water flow
S.V. Panno, Keith C. Hackley, K. Cartwright, Chao-Li Liu
1994, Groundwater (32) 591-604
A conceptual model of the ground-water flow and recharge to the Mahomet Bedrock Valley Aquifer (MVA), east-central Illinois, was developed using major ion chemistry and isotope geochemistry. The MVA is a “basal” fill in the east-west trending buried bedrock valley composed of clean, permeable...
Interactive regional regression approach to estimating flood quantiles
Gary D. Tasker, Raymond M. Slade
1994, Conference Paper, Proceedings of the 21st Annual Conference on Water Policy and
In Texas, a computer program has been developed which will estimate flood quantiles for an ungaged site based on data from gaging stations with similar watershed characteristics. The user enters site location and watershed characteristics for an ungaged site and the program selects, from a data base of gaging stations,...
A summary of leveling data from Kilauea Iki Lava Lake from 1960 to 1988
J.E. Pallon, R.T. Okamura, M. K. Sako, T. L. Wright
1994, Open-File Report 94-137
Water resources data Texas, water year 1993, volume 2. San Jacinto River basin, Brazos River basin, San Bernard River basin, and intervening coastal basins
S. C. Gandara, E. M. McPherson, W. Gibbons, B.A. Hinds, F.L. Andrews
1994, Water Data Report TX-93-2
No abstract available....
Relation between largest known flood discharge and elevation in Montana
Charles Parrett, Stephen R. Holnbeck
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Previous studies relating unit discharge to elevation indicated that large floods in the Rocky Mountains may be limited by elevation. However, high-elevation data are sparse in Montana and the indications may not be entirely correct. Based on data at 19 sites in Montana, a strong log-linear relation exists between large-flood...
Navigating aerial transects with a laptop computer
R. Michael Anthony, R.A. Stehn
1994, Wildlife Society Bulletin (22) 674-676
SUMMARY: A comparison is made of different methods of determining size of home range from grid trapping data. Studies of artificial populations show that a boundary strip method of measuring area and an adjusted range length give sizes closer to the true range than do minimum area or...
Water resources data, Montana, water year 1993
R.R. Shields, M. K. White, T.M. Brosten, C. L. Chambers
1994, Water Data Report MT-93-1
No abstract available....
Water Resources Data, Illinois, Water Year 1993, Vol. 2
E.E. Zuehls, J.K. LaTour, T.L. Wicker
1994, Water Data Report IL-93-2
Water-surface profile and flood boundaries for the computed 100-year flood, Muddy Creek, Northern Cheyenne Indian Reservation, Montana
R. J. Omang
1994, Water-Resources Investigations Report 93-4215
Hydrologic and hydraulic evaluations of Muddy Creek were made to determine the magnitude of the 100-year flood and the extent of flooding that would occur as the result of this flood. Forty-three cross sections were surveyed and 14 cross sections were synthesized along a 6.7-mile reach of Muddy Creek. Data...
Effects of polar and nonpolar groups on the solubility of organic compounds in soil organic matter
C. T. Chiou, D. E. Kile
1994, Environmental Science & Technology (28) 1139-1144
Vapor sorption capacities on a high-organic-content peat, a model for soil organic matter (SOM), were determined at room temperature for the following liquids: n-hexane, 1,4-dioxane, nitroethane, acetone, acetonitrile, 1-propanol, ethanol, and methanol. The linear organic vapor sorption is in keeping with the dominance of vapor partition in peat SOM. These...
Design and operation of a system to monitor sediment deposition for protection of an endangered mussel
Michael S. Griffin, David S. Mueller
1994, Conference Paper, Proceedings of the Symposium on Fundamentals and Advancements in Hydraulic Measurements and Experimentation
The USGS, in cooperation with the COE, has designed and installed a system to continuously monitor changes in elevation of the river bed over the mussel bed located downstream of the Olmsted Locks and Dam project. The installed system utilizes a multi-transducer acoustic ranging system to provide river bed elevation...
Potential-field sounding using Euler's homogeneity equation and Zidarov bubbling
Lindrith Cordell
1994, Geophysics (59) 902-908
Potential-field (gravity) data are transformed into a physical-property (density) distribution in a lower half-space, constrained solely by assumed upper bounds on physical-property contrast and data error. A two-step process is involved. The data are first transformed to an equivalent set of line (2-D case) or point (3-D case) sources, using...
Water resources data, Florida, water year 1993. Volume 2B: South Florida - ground water
A.C. Lietz
1994, Water Data Report FL-93-2B
Water resources data for 1993 water year in Florida consists of continuous or daily discharge for 312 streams, periodic discharge for 9 streams, miscellaneous discharge for 107 streams, continuous or daily stage for 91 streams, periodic stage for 0 streams, peak discharge for 30 streams, continuous daily tide stage for...
Data for four drill holes, Mount Margaret copper-molybdenum-gold deposit, Skamania County, Washington
M.A. Chaffee
1994, Open-File Report 94-2-A
Magnetostratigraphy of the Willwood Formation, Bighorn Basin, Wyoming: New constraints on the location of Paleocene/Eocene boundary
L. Tauxe, J. Gee, Y. Gallet, T. Pick, T. Bown
1994, Earth and Planetary Science Letters (125) 159-172
The lower Eocene Willwood Formation in the Bighorn Basin of Wyoming preserves a rich and diverse mammalian and floral record. The paleomagnetic behavior of the sequence of floodplain paleosols of varying degrees of maturation ranges from excellent to poor. We present a...
Precursory swarms of long-period events at Redoubt Volcano (1989-1990), Alaska: Their origin and use as a forecasting tool
B. A. Chouet, R.A. Page, C.D. Stephens, J.C. Lahr, J.A. Power
1994, Journal of Volcanology and Geothermal Research (62) 95-135
During the eruption of Redoubt Volcano from December 1989 through April 1990, the Alaska Volcano Observatory issued advance warnings of several tephra eruptions based on changes in seismic activity related to the occurrence of precursory swarms of long-period (LP) seismic events (dominant period of about 0.5 s). The initial eruption...
Operation of hydrologic data-collection stations by the U.S. Geological Survey in 1993
Alberto Condes de la Torre
1994, Open-File Report 94-84
Strong-motion data processing
Gerald A. Brady, April M. Converse
1994, Conference Paper, Structures Congress XII
Processing of strong-motion earthquake accelerograms is now carried out routinely on a world-wide basis. Two international workshops have given participants the opportunity to assess their capabilities. Data from the larger instrumentation networks are disseminated widely. The US Geological Survey's strong-motion network consists largely of film recorders, due to their long...
