Ground-water quality, Cook Inlet Basin, Alaska, 1999
Roy L. Glass
2001, Water-Resources Investigations Report 2001-4208
As part of the U.S. Geological Survey?s National Water-Quality Assessment Program, ground-water samples were collected from 34 existing wells in the Cook Inlet Basin in south-central Alaska during 1999. All ground-water samples were from aquifers composed of glacial or alluvial sediments. The water samples were used to determine the occurrence...
Methodology and Estimates of Scour at Selected Bridge Sites in Alaska
Thomas A. Heinrichs, Ben W. Kennedy, Dustin E. Langley, Robert L. Burrows
2001, Water-Resources Investigations Report 2000-4151
The U.S. Geological Survey estimated scour depths at 325 bridges in Alaska as part of a cooperative agreement with the Alaska Department of Transportation and Public Facilities. The department selected these sites from approximately 806 State-owned bridges as potentially susceptible to scour during extreme floods. Pier scour and contraction scour...
Well logs and core data from selected cored intervals, National Petroleum Reserve, Alaska
Philip H. Nelson, Joyce E. Kibler
2001, Open-File Report 2001-167
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government....
Four regional seismic lines: National Petroleum Reserve - Alaska (Supplement to U.S. Geological Survey Open-File Report 00-286)
J. J. Miller, Warren F. Agena, Myung W. Lee, F. N. Zihlman, J. A. Grow, D. J. Taylor, Michele Killgore, H. L. Oliver
2001, Open-File Report 2001-337
Effects of urbanization on benthic macroinvertebrate communities in streams, Anchorage, Alaska
Robert T. Ourso
2001, Water-Resources Investigations Report 2001-4278
The effect of urbanization on stream macroinvertebrate communities was examined by using data gathered during a 1999 reconnaissance of 14 sites in the Municipality of Anchorage, Alaska. Data collected included macroinvertebrate abundance, water chemistry, and trace elements in bed sediments. Macroinvertebrate relative-abundance data were edited and used in metric and...
Water quality in the Yukon River basin
Timothy P. Brabets, Rick Hooper, Ed Landa
2001, Fact Sheet 050-01
The Yukon River Basin, which encompasses 330,000 square miles in northwestern Canada and central Alaska (Fig. 1), is one of the largest and most diverse ecosystems in North America. The Yukon River is also fundamental to the ecosystems of the eastern Bering Sea and Chukchi Sea, providing most of the...
Seven-year phenological record of the Alaskan ecoregions derived from advanced very high resolution radiometer normalized difference vegetation index data
Carl J. Markon
2001, Open-File Report 2001-11
Seasonal properties of vegetation covering northern boreal and arctic landscapes are considered important as input to numerous climate change studies. In this study, multitemporal phenological characteristics of Alaskan vegetation were studied for the State as a whole, and 19 of 20 ecoregions were studied using seasonally truncated, composited advanced very...
Global Positioning System (GPS) survey of Augustine Volcano, Alaska, August 3-8, 2000: data processing, geodetic coordinates and comparison with prior geodetic surveys
Benjamin A. Pauk, John A. Power, Mike Lisowski, Daniel Dzurisin, Eugene Y. Iwatsubo, Tim Melbourne
2001, Open-File Report 2001-99
Between August 3 and 8,2000,the Alaska Volcano Observatory completed a Global Positioning System (GPS) survey at Augustine Volcano, Alaska. Augustine is a frequently active calcalkaline volcano located in the lower portion of Cook Inlet (fig. 1), with reported eruptions in 1812, 1882, 1909?, 1935, 1964, 1976, and 1986 (Miller et...
U.S. Geological Survey Activities Related to American Indians and Alaska Natives Fiscal Year 2000
Water Resources Division, U.S. Geological Survey
2000, Report
The U.S. Geological Survey (USGS) is an impartial scientific organization that strives to produce scientific results that are relevant to the people of the United States and their land and resource managers. USGS does not improve the quality of its customers' lives; it provides the informational tools for American Indians,...
Effect of hibernation and reproductive status on body mass and condition of coastal brown bears
Grant V. Hilderbrand, C. C. Schwartz, C.T. Robbins, Thomas A. Hanley
2000, Journal of Wildlife Management (64) 178-183
We investigated the effect of hibernation and reproductive status on changes in body mass and composition of adult female brown bears (Ursus arctos) on the Kenai Peninsula, Alaska. This information is fundamental to understanding nutritional ecology of wild brown bear populations. Six adult females handled in the fall and following...
Phylogeography of mitochondrial DNA variation in brown bears and polar bears
Gerald F. Shields, Deborah Adams, Gerald W. Garner, Martine Labelle, Jacy Pietsch, Malcolm Ramsay, Charles Schwartz, Kimberly Titus, Scott Williamson
2000, Molecular Phylogenetics and Evolution (15) 319-326
We analyzed 286 nucleotides of the middle portion of the mitochondrial cytochrome b gene of 61 brown bears from three locations in Alaska and 55 polar bears from Arctic Canada and Arctic Siberia to test our earlier observations of paraphyly between polar bears and brown bears as well as to...
Frequency dependent Lg attenuation in south-central Alaska
D.E. McNamara
2000, Geophysical Research Letters (27) 3949-3952
The characteristics of seismic energy attenuation are determined using high frequency Lg waves from 27 crustal earthquakes, in south-central Alaska. Lg time-domain amplitudes are measured in five pass-bands and inverted to determine a frequency-dependent quality factor, Q(f), model for south-central Alaska. The inversion in this study yields the frequency-dependent quality...
Effects of white phosphorus on mallard reproduction
S.I. Vann, D. W. Sparling, M. A. Ottinger
2000, Environmental Toxicology and Chemistry (19) 2525-2531
Extensive waterfowl mortality involving thousands of ducks, geese, and swans has occurred annually at Eagle River Flats, Alaska since at least 1982. The primary agent for this mortality has been identified as white phosphorus. Although acute and subacute lethality have been described, sublethal effects are less well known. This study...
Annual survival and site fidelity of Stellar's Eiders molting along the Alaska Peninsula
Paul L. Flint, Margaret R. Petersen, Christian P. Dau, James E. Hines, James D. Nichols
2000, Journal of Wildlife Management (64) 261-268
Populations of Steller's eiders (Polysticta stelleri) molting and wintering along the Alaska Peninsula have declined since the 1960's. We captured and marked a large sample of Steller's eiders molting in 2 lagoons along the Alaska Peninsula between 1975-97. We used mark-recapture analysis techniques to estimate annual survival and movement probabilities...
Alaska resource data file: Chandalar quadrangle
Joe Britton
2000, Open-File Report 2000-357
No abstract available....
Alaska resource data file: Kantishna River quadrangle
C.S. Rombach
2000, Open-File Report 2000-289
No abstract available....
Alaska resource data file: Philip Smith Mountains quadrangle
Joe Britton
2000, Open-File Report 2000-291
No abstract available....
Alaska resource data file: Charley River quadrangle
C. E. Cameron
2000, Open-File Report 2000-290
No abstract available....
Alaska resource data file, Chignik quadrangle
Steven H. Pilcher
2000, Open-File Report 2000-130
Descriptions of the mineral occurrences can be found in the report. 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....
Preliminary volcano-hazard assessment for the Katmai volcanic cluster, Alaska
Judy Fierstein, Wes Hildreth
2000, Open-File Report 2000-489
The world’s largest volcanic eruption of the 20th century broke out at Novarupta (fig. 1) in June 1912, filling with hot ash what came to be called the Valley of Ten Thousand Smokes and spreading downwind more fallout than all other historical Alaskan eruptions combined. Although almost all the magma...
Ecology and demographics of Pacific sand lance, Ammodytes hexapterus Pallas, in Lower Cook Inlet, Alaska
Martin D. Robards, John F. Piatt
2000, Report
Distinct sand lance populations occur within the relatively small geographic area of Lower Cook Inlet, Alaska. Marked meso-scale differences in abundance, growth, and mortality exist as a consequence of differing oceanographic regimes. Growth rate within populations (between years) was positively correlated with temperature. However, this did not extend to inter-population...
Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska
Christina A. Neal, Robert G. McGimsey, Thomas P. Miller, James R. Riehle, Christopher F. Waythomas
2000, Open-File Report 00-519
Aniakchak is an active volcano located on the Alaska Peninsula 670 kilometers southwest of Anchorage. The volcano consists of a dramatic, 10-kilometer-diameter, 0.5 to 1.0-kilometer-deep caldera that formed during a catastrophic eruption 3,500 years ago. Since then, at least a dozen separate vents within the caldera have erupted, often explosively,...
Regional geochemical results from the analyses of rock, water, soil, stream sediment, and vegetation samples : Fortymile River Watershed, east-central, Alaska, 1998 sampling
J.G. Crock, L. P. Gough, R. B. Wanty, W. C. Day, B. Wang, B. M. Gamble, M. Henning, Z. A. Brown, A. L. Meier
2000, Open-File Report 2000-511
Map of Distribution of Bottom Sediments on the Continental Shelf, Gulf of Alaska
Kevin R. Evans, Paul R. Carlson, Monty A. Hampton, Michael S. Marlow, Peter W. Barnes
2000, Miscellaneous Field Studies Map 2335
Introduction The U.S. Geological Survey has a long history of exploring marine geology in the Gulf of Alaska. As part of a cooperative program with other federal and state agencies, the USGS is investigating the relations between ocean-floor geology and benthic marine biohabitats. This bottom sediment map, compiled from published literature...
Preliminary bathymetry of Shoup Basin and late Holocene changes of Shoup Glacier, Alaska
Austin Post, R.J. Viens
2000, Water-Resources Investigations Report 94-4093
Shoup Glacier is a retreating, tidewater-calving glacier in northeast Prince William Sound, Alaska. Historical records, vegetation distribution, and sediment depth in Shoup Bay indicate that the glacier reached a late Holocene maximum at the mouth of Shoup Bay prior to 1750. When first observed around 1900, the terminus was stable...
