Simulation of tidal flow and circulation patterns in the Loxahatchee River Estuary, southeastern Florida
Gary M. Russell, Carl R. Goodwin
1987, Water-Resources Investigations Report 87-4201
Results of a two-dimensional, vertically averaged, computer simulation model of the Loxahatchee River estuary show that under typical low freshwater inflow and vertically well mixed conditions, water circulation is dominated by freshwater inflow rather than by tidal influence. The model can simulate tidal flow and circulation in the Loxahatchee River...
Latent population responses of summer birds to a catastrophic, climatological event
Fritz L. Knopf, James A. Sedgwick
1987, The Condor (89) 869-873
Catastrophic events can create ecological crunches for avian populations. Ornithologists generally assume that such events elicit immediate, dramatic declines in populations followed by rapid recolonization of a site with habitat recovery. Despite total inundation of habitats within the South Platte floodplain of eastern Colorado during the 1983 breeding season, populations...
Synopsis of wetland functions and values: bottomland hardwoods with special emphasis on eastern Texas and Oklahoma
D.L. Wilkinson, K. Schneller-McDonald, R.W. Olson, G.T. Auble
1987, Report, Biological Report
Bottomland hardwood wetlands are the natural cover type of many floodplain ecosystems in the southeastern United States. They are dynamic, productive systems that depend on intermittent flooding and moving water for maintenance of structure and function. Many of the diverse functions performed by bottomland hardwoods (e.g., flood control, sediment trapping,...
The physics of debris flows — A conceptual assessment
Richard M. Iverson, Roger P. Denlinger
R. L. Beschta, T. Blinn, G. E. Grant, G. G. Ice, F. J. Swanson, editor(s)
1987, Conference Paper, Erosion and sedimentation in the Pacific Rim
Debris flows exhibit conspicuous dynamic interactions among their solid and fluid constituents. Key features of the interactions are neglected in traditional theories that treat debris flows as viscoplastic continua or as uniformly dispersed grain flows, but improved understanding of grain-grain and fluid-grain interactions has emerged from recent experimental and theoretical...
Evaluation of ground failure susceptibility, opportunity, and potential in the urban area of Anchorage, Alaska : final technical report
Yoshiharu Moriwaki, I.M. Idriss
1987, Report
This study was conducted as a part of the U.s. Geological Survey's Earthquake Hazards Reduction Program. The goal of this program is a reduction of earthquake hazards through the incorporation of research findings on these hazards into land-use planning decisions. An important objective of the Earthquake Hazards Reduction Program is...
Snow and ice studies by thematic mapper and multispectral scanner Landsat images
Olav Orheim, Baerbel K. Lucchitta
1987, Annals of Glaciology (9) 109-118
Digitally enhanced Landsat Thematic Mapper (TM) images of Antarctica reveal snow and ice features to a detail never seen before in satellite images. The six TM reflective spectral bands have a nominal spatial resolution of 30 m, compared to 80 m for the Multispectral Scanner (MSS). TM bands 2–4 are...
Mineral resources of wilderness study areas: Southwestern Montana
1987, Bulletin 1724
No abstract available....
Mineral resources of wilderness study areas: southern Wyoming
Edward A. Merewether, D. M. Kulik, George S. Ryan
1987, Bulletin 1757
No abstract available....
Mourning dove nesting: Seasonal patterns and effects of September hunting
Paul H. Geissler, David D. Dolton, Rebecca Field, Richard A. Coon, H. Franklin Percival, Don W. Hayne, Lawrence D. Soileau, Ronnie R. George, James H. Dunks, S. Dwight Bunnell
1987, Resource Publication 168
A nationwide State-Federal cooperative study was initiated in 1978 to examine effects of September hunting on nesting mourning doves (Zenaida macroura). This study was designed to (1) determine the proportion of the annual total of dove nesting activity and production that occurs in September and October, and (2) determine if...
Presidential elections, 1972-1984; Presidential elections, 1789-1968
Water Resources Division, U.S. Geological Survey
1987, Report
No abstract available....
Evolution of sedimentary basins: Uinta and Piceance Basins
1987, Bulletin 1787
No abstract available....
Thermal evolution of a differentiated Ganymede and implications for surface features
Randolph L. Kirk, David J. Stevenson
1987, Icarus (69) 91-134
Thermal evolution models are presented for Ganymede, assuming a mostly differentiated initial state of a water ocean overlying a rock layer. The only heat sources are assumed to be primordial heat (provided by accretion) and the long-lived radiogenic heat sources in the rock component. As Ganymede cools, the ocean thins,...
Metal contamination of fish in low-pH lakes and potential implications for piscivorous wildlife
J.G. Wiener
1987, Book, Transactions of the 52nd North American Wildlife and Natural Resources Conference
No abstract available....
Notes on some mammals of north-central Texas
C. Jones, R.D. Suttkus, Michael A. Bogan
1987, Occasional Papers of the Museum at Texas Tech University (115) 1-21
No abstract available....
Mitigation evaluation data base draft user's guide
D. B. Hamilton, J. E. Roelle
1987, Report
No abstract available....
Grants, awards and prizes in ornithology
R.C. Banks
1987, Report
No abstract available....
Hydromagnetic constraints on deep zonal flows in the giant planets
Randolph L. Kirk, David J. Stevenson
1987, Astrophysical Journal (316) 836-846
The observed zonal flows of the giant planets will, if they penetrate below the visible atmosphere, interact significantly with the planetary magnetic field outside the metallized core. The appropriate measure of this interaction is the Chandrasekhar number Q = H^2 /4πρνα^2 λ (H = radial component of the magnetic field,...
Geographical distribution: Phrynosoma douglasii brevirostre
P.S. Corn, L.J. Gingerich
1987, Herpetological Review (18)
No abstract available....
Software for negotiation planning: experience with a new program
Berton Lee Lamb
1987, Social Science Computer Review (5) 137-148
No abstract available....
Discussion of: 'Influence of large suspended-sediment concentrations in rivers' by J.B. Bradley and S.C. McCutcheon
Robert T. Milhous
1987, Book chapter, Sediment Transport in Gravel-Bed Rivers
No abstract available....
Habitat suitability index curves for paddlefish, developed by the delphi technique
John H. Crance
1987, North American Journal of Fisheries Management (7) 123-130
A Delphi exercise conducted with a panel of 11 experts on paddlefish (Polyodon spathula) and an evaluator resulted in 14 riverine habitat suitability index curves associating various life stages or activities of paddlefish with four variables: velocity, depth, substrate type, and temperature. The panel reached a consensus on six of...
Refuge management analyses: water management alternatives at Chautauqua National Wildlife Refuge
J. E. Roelle, D. B. Hamilton, Gregor T. Auble, D.A. Asherin
1987, Report
No abstract available....
Discussion of: 'Bed load transport measurements by the Vortex-tube trap on Virginio Creek, Italy' by P. Tacconi and P. Billi
Robert T. Milhous
1987, Book chapter, Sediment Transport in Gravel-bed Rivers
No abstract available....
Characteristics of anelastic reflection-refraction coefficients with implications for calculation of synthetic seismograms
Roger D. Borcherdt
1987, Conference Paper, Indo-U.S. workshop on earthquake disaster mitigation research proceedings
No abstract available....
Post-fire demography of resprout and seedling establishment by Adenostoma fasciculatum in the California chaparral
P.W. Rundel, G.A. Baker, D.J. Parsons, T.J. Stohlgren
1987, Book chapter, Functional Analysis in Mediterranean Ecosystems
Adenostoma fasciculatum (chamise) forms the dominant element of chaparral ecosystems in California. This evergreen, ericoid-leaved shrub occurs as a codominant in mixed chaparral or an overwhelming dominant in chamise chaparral, being present in over 70% of the chaparral stands in the state (Hanes 1971). No other chaparral shrub approaches A....
