Reference manual for generation and analysis of Habitat Time Series: version II
Robert T. Milhous, John M. Bartholow, Marlys A. Updike, Alan R. Moos
1990, Report, Instream Flow Information Paper 27
The selection of an instream flow requirement for water resource management often requires the review of how the physical habitat changes through time. This review is referred to as 'Time Series Analysis." The Tune Series Library (fSLIB) is a group of programs to enter, transform, analyze, and display time series data...
Chemical weathering in the Loch Vale Watershed, Rocky Mountain National Park, Colorado
M. Alisa Mast, James I. Drever, Jill Baron
1990, Water Resources Research (26) 2971-2978
Mineralogic, hydrologic, and geochemical data were used to determine the source of solutes to surface waters draining the Loch Vale Watershed (LVWS), an alpine-subalpine drainage located in the Front Range of Colorado. The flux of dissolved solids from LVWS is primarily controlled by interactions between snowmelt and materials derived from...
Negotiation techniques to resolve western water disputes
Berton L. Lamb, Jonathan G. Taylor
1990, Journal of the American Water Resources Association (26) 967-975
There is a growing literature on the resolution of natural resources conflicts. Much of it is practical, focusing on guidelines for hands-on negotiation. This literature can be a guide in water conflicts. This is especially true for negotiations over new environmental values such as instream flow....
The seismic cycle pursued
Allan Goddard Lindh
1990, Nature (348) 580-581
No abstract available....
Relationships between live tree diameter and cavity abundance in a Missouri oak-hickory forest
Arthur W. Allen, Janelle G. Corn
1990, Northern Journal of Applied Forestry (7) 179-183
We quantified relationships between mean dbh of live, dominant and codominant trees, and cavity abundance in an oak-hickory forest in southeast Missouri. Inspection of 3,981 trees >12.7 cm dbh in 107 0.1-ha plots indicated that cavities occurred in 19.9% of all trees. White oak, black oak, scarlet oak, and hickories...
Petrology of fluvial sands from the Amazonian foreland basin, Peru and Bolivia: Discussion
Mark J. Johnsson, Robert F. Stallard, N. Lundberg
1990, Geological Society of America Bulletin (102) 1727-1729
No abstract available....
Comparative toxicity of inorganic contaminants released by placer mining to early life stages of salmonids
Kevin J. Buhl, Steven J. Hamilton
1990, Ecotoxicology and Environmental Safety (20) 325-342
The acute toxicities of four trace inorganics associated with placer mining were determined, individually and in environmentally relevant mixtures, to early life stages of Arctic grayling (Thymallus arcticus) from Alaska and Montana, coho salmon (Oncorhynchus kitsutch) from Alaska and Washington, and rainbow trout (Oncorhynchus mykiss) from Montana. The descending rank...
The chemistry of iron, aluminum, and dissolved organic material in three acidic, metal-enriched, mountain streams, as controlled by watershed and in-stream processes
Diane M. McKnight, Kenneth E. Bencala
1990, Water Resources Research (26) 3087-3100
Several studies were conducted in three acidic, metal-enriched, mountain streams, and the results are discussed together in this paper to provide a synthesis of watershed and in-stream processes controlling Fe, Al, and DOC (dissolved organic carbon) concentrations. One of the streams, the Snake River, is naturally acidic; the other two,...
Discussion of “Gas‐Transfer Measurements Using Headspace Analysis of Propane” by John R. Thene and John S. Gulliver (November/December, 1990, Vol. 116, No. 6)
Ronald E. Rathbun
1990, Journal of Environmental Engineering (118) 454-456
No abstract available....
Preliminary delineation of contaminated water-bearing fractures intersected by open-hole bedrock wells
John H. Williams, Randall W. Conger
1990, Groundwater Monitoring & Remediation (10) 118-126
Contaminated water‐bearing fractures intersected by open‐hole bedrock wells were preliminarily delineated through a combination of geophysical logging, vertical‐flow measurements, and downhole water sampling as part of remedial site investigations in southeastern New York. The wells investigated range from 100 to 450 feet in depth, have only shallow surface casing, and...
Surface displacements in the 1906 San Francisco and 1989 Loma Prieta earthquakes
Paul Segall, Michael Lisowski
1990, Science (250) 1241-1244
The horizontal displacements accompanying the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake are computed from geodetic survey measurements. The 1906 earthquake displacement field is entirely consistent with right-lateral strike slip on the San Andreas fault. In contrast, the 1989 Loma Prieta earthquake exhibited subequal components of strike...
Landslides caused by the intense precipitation of Hurricane Hugo in El Yunque and surrounding areas
Matthew C. Larsen
1990, Report, Boletin Oficial de la Sociedad de Historia Natural de Puerto Rico
No abstract available....
The late Cenozoic evolution of the Tuolumne River, central Sierra Nevada, California
N.K. Huber
1990, GSA Bulletin (102) 102-115
Erosional remnants of volcanic rock deposited in a lO-m.y.-old channel of the Tuolumne River permit its partial reconstruction. Projection of the reconstructed channel west to the Central Valley and east to the range crest, together with several assumptions about the position of the hinge line and changes in channel gradient,...
Use of wildlife models for habitat management
D.F. Stauffer, A.H. Farmer, B.S. Cade
1990, Book, Proceedings : resource technology 90, Second International Symposium on Advanced Technology in Natural Resource Management
No abstract available....
The 40Ar/39Ar thermochronology of the eastern Mojave Desert, California, and adjacent western Arizona with implications for the evolution of metamorphic core complexes
D.A. Foster, T.M. Harrison, C. F. Miller, Keith A. Howard
1990, Journal of Geophysical Research B: Solid Earth (95) 20005-20024
Mesozoic thickening and Cenozoic extension resulted in the juxtaposition of upper and middle crustal rocks in the eastern Mojave Desert, southeastern California and western Arizona. The application of 40Ar/39Ar thermochronology to rocks in this region provides information about the timing and nature of thrusting, plutonism, metamorphism, denudation, and detachment faulting. The 40Ar/39Ar...
Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge
Robert A. Zierenberg, Peter Schiffman
1990, Nature (348) 155-157
THE Sea Cliff hydrothermal field, on the northern Gorda Ridge, contains mounds and chimneys of hydrothermally precipitated sulphide and sulphate minerals typical of sea-floor hydrothermal vent sites1. In addition, large areas of the sea floor are covered by subhorizontal hydrothermal crusts. Samples of the crust recovered by submersible are composed...
Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge
R.A. Zierenberg, Peter Schiffmant
1990, Nature (348) 155-157
The Sea Cliff hydrothermal field, on the northern Gorda Ridge, contains mounds and chimneys of hydrothermally precipitated sulphide and sulphate minerals typical of sea-floor hydrothermal vent sites1. In addition, large areas of the sea floor are covered by subhorizontal hydrothermal crusts. Samples of the crust recovered by submersible are composed...
Field methods for measurement of ground water redox chemical parameters
Katherine Walton-Day, Donald L. Macalady, Myron H. Brooks, Vernon T. Tate
1990, Groundwater Monitoring & Remediation (10) 81-89
An inexpensive, versatile, and portable system is presented, which facilitates rapid field determinations of redox potentials, pH, conductivity, ferrous and total iron, nitrite, specific conductance, dissolved oxygen, and temperature. Accuracy is facilitated by on‐site measurements of most parameters using specially constructed flow‐through cells and, for several...
Historical Landsat data comparisons: illustrations of land surface change
Matthew D. Cross
1990, Report
The U.S. Geological Survey's (USGS) EROS Data Center (EDC) has archived two decades of Landsat data, providing a rich collection of information about the dynamics of the Earth's land surface. Major changes to the surface features of the planet can be detected, measured, and studied using Landsat data. The effects...
Establishment of bottomland oak plantations on the Yazoo National Wildlife Refuge complex
J. A. Allen
1990, Southern Journal of Applied Forestry (14) 206-210
Stocking, height and diameter growth, and invasion of both herbaceous and woody plant species are reported for 5 direct seeded and 5 planted seedling stands of bottomland oaks, all of which were between 4 and 8 years old. Stocking was generally higher in the planted seedling stands. Both height and...
The Ag-Mn-Pb-Zn vein, replacement, and skarn deposits of Uchucchacua, Peru; studies of structure, mineralogy, metal zoning, Sr isotopes, and fluid inclusions
M. Andrew Bussell
1990, Economic Geology (85) 1348-1383
Uchucchacua is an Ag-Mn-Pb-Zn vein, replacement, and skarn mineral district in the central Andes of Peru. Host rocks are massive Jumasha Formation shelf limestones of Turonian age that have been folded into an asymmetric northeast-verging anticline of Andean trend. Strata near the fold crest are cut by minor dacitic intrusions...
Multiple scales of patchiness and patch structure: a hierarchical framework for the study of heterogeneity
Natasha B. Kotliar, John A. Wiens
1990, Oikos (59) 253-260
We develop a hierarchical model of heterogeneity that provides a framework for classifying patch structure across a range of scales. Patches at lower levels in the hierarchy are more simplistic and correspond to the traditional view of patches. At levels approaching the upper bounds of the hierarchy the internal structure...
Influence of exchange flow between the channel and hyporheic zone on nitrate production in a small mountain stream
Frank J. Triska, John H. Duff, Ronald J. Avanzino
1990, Canadian Journal of Fisheries and Aquatic Sciences (47) 2099-2111
Variation in local exchange of flows between the channel and hyporheic zone produced temporally shifting concentration gradients of dissolved oxygen, nitrate, and ammonium in subsurface waters of a small, gravel-cobble bed stream. Channel water advected laterally supplied dissolved oxygen, and groundwater supplied ammonium to support hyporheic nitrification. Nitrate production was...
Transferring models: the case of the physical habitat simulation system
Robert T. Milhous
1990, Book, Transferring models to users
No abstract available....
Comment on "Temperature dependence of the aqueous solubilities of highly chlorinated dibenzo-p-dioxins"
Cary T. Chiou, Milton Manes
1990, Environmental Science & Technology (24) 1755-1756
No abstract available....
