Relating tumor score to hematology in green turtles with fibropapillomatosis in Hawaii
Thierry M. Work, George H. Balazs
1999, Journal of Wildlife Diseases (35) 804-807
The relationship between hematologic status and severity of tumor affliction in green turtles (Chelonia mydas) with fibropapillomatosis (FP) was examined. During 1 wk periods in July 1997 and July 1998, we bled 108 free-ranging green turtles from Pala'au (Molokai, Hawaii, USA) where FP is endemic. Blood was analyzed for hematocrit,...
Nitrate in groundwater of the midwestern United States: A regional investigation on relations to land use and soil properties
D. Kolpin, M. Burkart, D. Goolsby
1999, IAHS-AISH Publication 111-116
The intense application of nitrogen-fertilizer to cropland in the midwestern United States has created concern about nitrate contamination of the region's aquifers. Since 1991, the US Geological Survey has used a network of 303 wells to investigate the regional distribution of nitrate in near-surface aquifers of the midwestern United States....
Water-use patterns of woody species in pineland and hammock communities of South Florida
Sharon M. Ewe, Leonel S. Sternberg, David E. Busch
1999, Forest Ecology and Management (118) 139-148
Rockland pine forests of south Florida dominated by Pinus elliottii var. densa characteristically have poor soil development in relation to neighboring hardwood hammocks. This has led to the hypothesis that Everglades hammock trees are more reliant on soil moisture derived from local precipitation whereas pineland plants must depend more on...
Assessing the influence of reacting pyrite and carbonate minerals on the geochemistry of drainage in the Coeur d'Alene mining district
Laurie S. Balistrieri, S. E. Box, A. A. Bookstrom, M. Ikramuddin
1999, Environmental Science & Technology (33) 3347-3353
The relative abundance of minerals that react to generate or consume acid in mineralized areas is critical in determining the quality of water draining from such areas. This work examines the fundamental reactions that influence the pH and composition of drainage from mine adits and tailings piles. We construct triangle...
Alaska resource data file: Big Delta quadrangle
Cameron Rombach
1999, Open-File Report 99-354
No abstract available....
Attenuation and source properties at the Coso Geothermal area, California
S. E. Hough, J.M. Lees, F. Monastero
1999, Bulletin of the Seismological Society of America (89) 1606-1619
We use a multiple-empirical Green's function method to determine source properties of small (M −0.4 to 1.3) earthquakes and P- and S-wave attenuation at the Coso Geothermal Field, California. Source properties of a previously identified set of clustered events from the Coso geothermal region are first...
1:2,000,000-scale Hydrologic Units of the United States
John Watermolen
1999, Report
This data set has been superseded by huc2m. This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America, and updated to...
Digital photogrammetric analysis of the IMP camera images: Mapping the Mars Pathfinder landing site in three dimensions
Randolph L. Kirk, Elpitha Howington-Kraus, Trent M. Hare, E. Dorrer, D. Cook, Kris J. Becker, K. Thompson, B. Redding, J. Blue, D. Galuszka, E.M. Lee, Lisa R. Gaddis, J. R. Johnson, Laurence A. Soderblom, A. W. Ward, P. H. Smith, D.T. Britt
1999, Journal of Geophysical Research E: Planets (104) 8869-8887
This paper describes our photogrammetric analysis of the Imager for Mars Pathfinder data, part of a broader program of mapping the Mars Pathfinder landing site in support of geoscience investigations. This analysis, carried out primarily with a commercial digital photogrammetric system, supported by our in‐house Integrated Software for Imagers and...
1:2,000,000-scale Hydrologic Units of the United States
John Watermolen
1999, Report
This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America, and updated to match the streams file created by the USGS...
Assessment of offshore New Jersey sources of Beach replenishment sand by diversified application of geologic and geophysical methods
J.S. Waldner, D. W. Hall, J. Uptegrove, R. E. Sheridan, G.M. Ashley, D. Esker
1999, Marine Georesources and Geotechnology (17) 139-140
Beach replenishment serves the dual purpose of maintaining a source of tourism and recreation while protecting life and property. For New Jersey, sources for beach sand supply are increasingly found offshore. To meet present and future needs, geologic and geophysical techniques can be used to improve the identification, volume estimation,...
Characterizing a sewage plume using the 3H-3He dating technique
Stephanie Dunkle Shapiro, Denis LeBlanc, Peter Schlosser, Andrea Ludin
1999, Ground Water (37) 861-878
An extensive 3H-3He study was performed to determine detailed characteristics of a regional flow system and a sewage plume over a distance of 4 km in a sand and gravel aquifer at Otis Air Base in Falmouth, Massachusetts. 3H-3He ages increase with depth in individual piezometer clusters and with distance...
Nonlinear soil response in the vicinity of the Van Normal Complex following the 1994 Northridge, California, earthquake
G. Cultrera, D.M. Boore, W. B. Joyner, C.M. Dietel
1999, Bulletin of the Seismological Society of America (89) 1214-1231
Ground-motion recording obtaineds at the Van Norman Complex from the 1994 Northridge, California, mainshock and its aftershocks constitute an excellent data set for the analysis of soil response as a function of ground-motion amplitude. We searched for nonlinear response by comparing the Fourier...
Applied historical ecology: Using the past to manage for the future
Thomas W. Swetnam, Craig D. Allen, Julio L. Betancourt
1999, Ecological Applications (9) 1189-1206
Applied historical ecology is the use of historical knowledge in the management of ecosystems. Historical perspectives increase our understanding of the dynamic nature of landscapes and provide a frame of reference for assessing modern patterns and processes. Historical records, however, are often too brief or fragmentary to be useful, or...
Indexing the relative abundance of age-0 white sturgeons in an impoundment of the lower Columbia River from highly skewed trawling data
T.D. Counihan, Allen I. Miller, M.J. Parsley
1999, North American Journal of Fisheries Management (19) 520-529
The development of recruitment monitoring programs for age-0 white sturgeons Acipenser transmontanus is complicated by the statistical properties of catch-per-unit-effort (CPUE) data. We found that age-0 CPUE distributions from bottom trawl surveys violated assumptions of statistical procedures based on normal probability theory. Further, no single data transformation uniformly satisfied these...
Soil water retention and maximum capillary drive from saturation to oven dryness
Hubert J. Morel-Seytoux, John R. Nimmo
1999, Water Resources Research (35) 2031-2041
This paper provides an alternative method to describe the water retention curve over a range of water contents from saturation to oven dryness. It makes two modifications to the standard Brooks and Corey [1964] (B-C) description, one at each end of the suction range. One expression proposed by Rossi and Nimmo [1994] is used...
Stem demography and post-fire recruitment of a resprouting serotinous conifer
Jon E. Keeley, M.B. Keeley, W.J. Bond
1999, Journal of Vegetation Science (10) 69-76
The contribution of resprouts and seedling recruitment to post-fire regeneration of the South African fynbos conifer Widdringtonia nodiflora was compared eight months after wildfires in 1990. Stems on all trees were killed by fire but resprouting success was > 90 % at all but one site. A demographic study of burned skeletons...
Estimates of suspended-sediment flux and bedform activity on the inner portion of the Eel continental shelf
D.A. Cacchione, P.L. Wiberg, J. Lynch, J. Irish, P. Traykovski
1999, Marine Geology (154) 83-97
Energetic waves, strong bottom currents, and relatively high rates of sediment discharge from the Eel River combined to produce large amounts of suspended-sediment transport on the inner continental shelf near the Eel River during the winter of 1995-1996. Bottom-boundary-layer (BBL) measurements at a depth of ~50 m using the GEOPROBE...
Effects of management practices on grassland birds: Ferruginous Hawk
Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, Betty R. Euliss
1999, Report, Effects of management practices on grassland birds
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds...
Carboniferous and older carbonate rocks: Lithofacies, extent, and reservoir quality: Chapter CC in The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska
Julie A. Dumoulin
1999, Open-File Report 98-34-CC
Carboniferous and older carbonate rocks are potential hydrocarbon reservoir facies for four plays in the 1002 area of the Arctic National Wildlife Refuge. These rocks include several units in the pre-Carboniferous basement and the Carboniferous Lisburne Group. Data from exploratory wells west of the 1002 area, outcrops south of the...
Effects of management practices on grassland birds: Wilson's Phalarope
Jill A. Dechant, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, Betty R. Euliss
1999, Report
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds...
Effects of management practices on grassland birds: Western Meadowlark
Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, Betty R. Euliss
1999, Report, Effects of management practices on grassland birds
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds...
Preserving ground water samples with hydrochloric acid does not result in the formation of chloroform
Paul J. Squillace, James F. Pankow, Jack E. Barbash, Curtis V. Price, John S. Zogorski
1999, Groundwater Monitoring & Remediation (19) 67-74
Water samples collected for the determination of volatile organic compounds (VOCs) are often preserved with hydrochloric acid (HCl) to inhibit the biotransformation of the analytes of interest until the chemical analyses can he performed. However, it is theoretically possible that residual free chlorine in the HCl can react with dissolved...
Geotechnical characteristics and slope stability in the Gulf of Cadiz
H. Lee, J. Baraza
1999, Marine Geology (155) 173-190
Sedimentological and geotechnical analyses of thirty-seven core samples from the Gulf of Cadiz continental margin were used to define the regional variability of sediment properties and to assess slope stability. Considering the sediment property data set as a whole, there is an association between grain size, plasticity and water content....
Using multiple-polarization L-band radar to monitor marsh burn recovery
Elijah W. Ramsey III, G.A. Nelson, S.K. Sapkota, S.C. Laine, J. Verdi, S. Rrasznay
1999, IEEE Transactions on Geoscience and Remote Sensing (37) 635-639
Aircraft L-band VV-, HH-, and VH-polarizations were examined as tools for monitoring burn recovery in a coastal marsh. Significant relationships were observed between time-since-burn (difference between burn and image collection dates; 550-900 days after burn) and returns related to all polarizations. As marsh burn recovery progressed, VV returns decreased while...
Detailed evaluation of gas hydrate reservoir properties using JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well downhole well-log displays
T. S. Collett
1999, Bulletin of the Geological Survey of Canada 295-311
The JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well project was designed to investigate the occurrence of in situ natural gas hydrate in the Mallik area of the Mackenzie Delta of Canada. Because gas hydrate is unstable at surface pressure and temperature conditions, a major emphasis was placed on the downhole...
