Recent carbonate slope sediments and sedimentary processes bordering a non-rimmed platform: southwest Florida continental margin
Gregg R. Brooks, Charles W. Holmes
1989, Book chapter, Controls on carbonate platforms and basin development
No abstract available....
On inter-tidal transport equation
Ralph T. Cheng, Shizuo Feng, Xi Pangen
1989, Book chapter, Estuarine circulation
The transports of solutes, sediments, nutrients, and other tracers are fundamental to the interactive physical, chemical, and biological processes in estuaries. The characteristic time scales for most estuarine biological and chemical processes are on the order of several tidal cycles or longer. To address the long-term transport mechanism meaningfully, the...
Climate variability in an estuary: Effects of riverflow on San Francisco Bay
David H. Peterson, Daniel R. Cayan, John F. Festa, Frederic H. Nichols, Roy A. Walters, James V. Slack, Stephen E. Hager, Laurence E. Schemel
David H. Peterson, editor(s)
1989, Book chapter, Aspects of climate variability in the Pacific and the Western Americas
A simple conceptual model of estuarine variability in the context of climate forcing has been formulated using up to 65 years of estimated mean-monthly delta flow, the cumulative freshwater flow to San Francisco Bay from the Sacramento-San Joaquin River, and salinity observations near the mouth, head, mid-estuary, and coastal...
Compilation of hydrologic data for the Edwards aquifer, San Antonio area, Texas, 1988, with 1934-88 summary
G.M. Nalley
1989, Edwards Underground Water District Bulletin 48
No abstract available....
Management of fish populations in large rivers: a review of tools and approaches
Geoffrey E. Petts, Jack G. Imhoff, Bruce A. Manny, John F. B. Maher, Stephen B. Weisberg
1989, Conference Paper, Proceedings of the International Large River Symposium
In common with most branches of science, the management of riverine fish populations is characterised by reductionist and isolationist philosophies. Traditional fish management focuses on stocking and controls on fishing. This paper presents a consensus of scientists involved in the LARS workshop on the management of fish populations in large rivers....
Inner shelf deposits of the Louisiana-Mississippi-Alabama region, Gulf of Mexico
Jack L. Kindinger, Shea Penland, S. Jeffress Williams, John R. Suter
1989, Gulf Coast Association of Geological Societies Transactions (39) 413-420
The late Quaternary morphology, shallow stratigraphy and sediment distribution of the Louisiana-Mississippi-Alabama inner shelf region are the product of transgressive and regressive sedimentary processes. Shelf sedimentary facies were deposited by deltaic progradation, followed by shoreface erosion and submergence. This information is based on interpretations and synthesis of more than 4,160...
Holocene sand shoals offshore of the Mississippi River delta plain
Shea Penland, John R. Suter, Randolph A. McBride, S. Jeffress Williams, Jack L. Kindinger, Ron Boyd
1989, Gulf Coast Association of Geological Societies Transactions (39) 471-480
Offshore of the Mississippi River delta plain lies a series of Holocene sand shoals marking the position of ancient submerged shorelines associated with younger shelf-phase delta plains. These submerged shorelines represent positions when sea level stood lower than present. Short periods of rapid sea level rise during the Holocene transgression,...
An algorithm for locating candidate labeling boxes within a polygon
Jan W. van Roessel
1989, American Cartographer (16) 201-209
Vector-based geographic information systems usually require annotation, such as a polygon number or attribute data, in a suitable location within a polygon. Traditional methods usually compute the polygon centroid, test the centroid for inclusion or exclusion, and select some alternative point when the centroid falls outside the polygon. Two problems...
Impacts of exploratory drilling for oil and gas on the benthic environment of Georges Bank
J. M. Neff, Michael H. Bothner, N. J. Maciolek, J. F. Grassle
1989, Marine Environmental Research (27) 77-114
A 3-year monitoring program was performed to assess the impacts of exploratory drilling for oil and gas on the benthic environment of Georges Bank, an important commercial fishery region in the North Atlantic east of Massachusetts, USA. Surficial sediments were sampled for chemical and benthic infaunal analysis and bottom still...
Image processing techniques for digital orthophotoquad production
Joy J. Hood, L. J. Ladner, Richard A. Champion
1989, Photogrammetric Engineering and Remote Sensing (55) 1323-1329
Orthophotographs have long been recognized for their value as supplements or alternatives to standard maps. Recent trends towards digital cartography have resulted in efforts by the US Geological Survey to develop a digital orthophotoquad production system. Digital image files were created by scanning color infrared photographs on a microdensitometer. Rectification...
Investigations of SPOT cartographic applications in the U.S. Geological Survey
June M. Thormodsgard, Glen G. Kelly, Jeffrey D. Spooner
1989, CISM Journal ACSGC (43) 145-149
The US Geological Survey has a longstanding commitment to the advancement of the technology and applications of remotely sensed data from civilian satellite systems. In the past, research based on satellite data was primarily directed toward natural resource and land use applications rather than cartographic applications. The availability of high-resolution,...
Small-scale digital soil maps for interpreting natural resources
Norman B. Bliss, William U. Reybold
1989, Journal of Soil and Water Conservation (44) 30-34
Gravity anomalies of irregularly shaped two-dimensional bodies with constant horizontal density gradient
Jeng-Jong Pan
1989, Geophysics (54) 528-530
An equation to compute the gravity anomalies of two-dimensional (2-D) bodies with density contrast varying with depth (z axis) was developed by Murthy and Rao (1979). I develop an equation for computing the gravity anomalies of 2-D bodies with constant horizontal density gradient. By combining this equation with the equation...
Terrain, vegetation, and landscape evolution of the R4D research site, Brooks Range Foothills, Alaska
D.A. Walker, Emily F. Binnian, B. M. Evans, N.D. Lederer, E.A. Nordstrand, P.J. Webber
1989, Holarctic Ecology (12) 238-261
Maps of the vegetation and terrain of a 22 km2 area centered on the Department of Energy (DOE) R4D (Response, Resistance, Resilience to and Recovery from Disturbance in Arctic Ecosystems) study site in the Southern Foothills Physiographic Province of Alaska were made using integrated geobotanical mapping procedures and a geographic-information...
Techniques for shipboard surveys of marine birds
Patrick J. Gould, Douglas J. Forsell
1989, Fish and Wildlife Technical Report 25
We describe shipboard and small boat techniques used by the US Fish and Wildlife Service in Alaska to survey marine birds at sea. The basis is a 10-min, 300-m-wide, strip transect taken from a platform moving at a constant speed in a constant direction. Special routines, such as instantaneous counts...
Populations, productivity, and feeding habits of seabirds at Cape Thompson, Alaska: Final report
Brian S. Fadely, John F. Piatt, Scott A. Hatch, David G. Roseneau
1989, Report
Investigations of seabird population sizes and breeding biology were conducted at Cape Thompson from 1959 to 1961 during pre-development studies associated with the Atomic through 1982, the Alaskan Program (OCSEAP) supported determine whether changes Energy Commission’s “Project Chariot.” From 1976 Outer Continental Shelf Environmental Assessment efforts to recensus seabirds at...
Ethylene glycol (antifreeze) poisoning in a free-ranging polar bear
Steven C. Amstrup, Craig L. Gardner, Kevin C. Myers, Frederick W. Oehme
1989, Veterinary and Human Toxicology (31) 317-319
The bright, fluorescent pink-colored remains of a polar bear were found on an Alaskan island with the gravel and snow adjacent to the bear colored bright purple. Traces of fox urine and feces found nearby were also pink. The punk and purple colors were due to rhodamine B, and ethylene...
A modular water shed modeling and data management system
G.H. Leavesley, L.G. Stannard
1989, Conference Paper, United States/People's Republic of China flood forecasting sympo sium/workshop proceedings
No abstract available...
Flood of April 4-5, 1987, in southeastern New York State, with flood profiles of Schoharie Creek
T. J. Zembrzuski, M. L. Evans
1989, Water-Resources Investigations Report 89-4084
No abstract available....
Late Neogene geohistory analysis of the Humboldt basin and its relationship to convergence of the Juan de Fuca plate
P. A. McCrory
1989, Journal of Geophysical Research Solid Earth (94) 3126-3138
Geohistory analysis of Neogene Humboldt basin strata provides important constraints for hypotheses of the tectonic evolution of the southern Cascadia subduction margin, leading up to the arrival of the Mendocino triple junction. This analysis suggests that the tectonic evolution of the Humboldt basin area was dominated by coupling between the...
Analytical results and sample locality map of stream-sediment and panned-concentrate samples from the El Dorado and Ireteba Peaks Wilderness Study Areas, Clark County, Nevada
John B. McHugh, J. H. Bullock, T. A. Roemer, G.A. Nowlan
1989, Open-File Report 89-22
No abstract available....
Solubility of jarosite solid solutions precipitated from acid mine waters, Iron Mountain, California
Charles N. Alpers, D. Kirk Nordstrom, J.W. Ball
1989, Science Geological Bulletin (42) 281-298
Because of the common occurrence of 15 to 25 mole percent hydronium substitution on the alkali site in jarosites, it is necessary to consider the hydronium content of jarosites in any attempt at rigorous evaluation of jarosite solubility or of the saturation state of natural waters with respect to jarosite....
Impacts of petroleum development in the Arctic
Robertson S.B.
1989, Science (245) 764-765
In their article “Cumulative impacts of oil fields on northern Alaskan landscapes.” D. A. Walter et al. (1) document some direct and indirect impacts of petroleum development in the Arctic on selected portions of the Prudhoe Bay Oil field. While most of the kinds of impacts they discuss are valid...
Attendance patterns of murres at breeding sites: Implications for monitoring
Scott A. Hatch, Martha A. Hatch
1989, Journal of Wildlife Management (53) 483-493
We studied attendance patterns (presence and absence at breeding sites) of common murres (Uria aalge) and thick-billed murres (U. lomvia) at a colony in the Semidi Islands, western Gulf of Alaska. The period from mid-laying through hatching was appropriate for censusing because counts were subject to the least amount of...
Autumn use of Izembek Lagoon, Alaska, by brant from different breeding areas
Austin Reed, Robert A. Stehn, David H. Ward
1989, Journal of Wildlife Management (53) 720-725
Thirty-three adult brant (Branta bernicla) were radiomarked at 4 widely separated areas of the western Canadian arctic and 1 area in western Alaska during June-August 1987. Their use of the Izembek Lagoon on the Alaska Peninsula was monitored through the 1987 fall staging period (Sep-Dec). Eighty percent of the brant...
