Hawaiian Volcano Observatory 1964 quarterly administrative reports
Jennifer S. Nakata
2007, Open-File Report 2007-1324
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Short Course Introduction to Quantitative Mineral Resource Assessments
Donald A. Singer
2007, Open-File Report 2007-1434
This is an abbreviated text supplementing the content of three sets of slides used in a short course that has been presented by the author at several workshops. The slides should be viewed in the order of (1) Introduction and models, (2) Delineation and estimation, and (3) Combining estimates and...
Hawaiian Volcano Observatory 1973 quarterly administrative reports
Jennifer S. Nakata
2007, Open-File Report 2007-1333
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Hawaiian Volcano Observatory 1971 quarterly administrative reports
Jennifer S. Nakata
2007, Open-File Report 2007-1331
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Hawaiian Volcano Observatory 1972 quarterly administrative reports
Jennifer S. Nakata
2007, Open-File Report 2007-1332
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Hawaiian Volcano Observatory 1970 quarterly administrative reports
Jennifer S. Nakata
2007, Open-File Report 2007-1330
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Escherichia coli Concentrations in Recreational Streams and Backcountry Drinking-Water Supplies in Shenandoah National Park, Virginia, 2005-2006
Kenneth Hyer
2007, Scientific Investigations Report 2007-5160
Although fecal contamination of streams is a problem of national scope, few investigations have been directed at relatively pristine streams in forested basins in national parks. With approximately 1.8 million visitors annually, Shenandoah National Park in Virginia is subject to extensive recreational use. The effects of these visitors and their...
A Compilation of Gas Emission-Rate Data from Volcanoes of Cook Inlet (Spurr, Crater Peak, Redoubt, Iliamna, and Augustine) and Alaska Peninsula (Douglas, Fourpeaked, Griggs, Mageik, Martin, Peulik, Ukinrek Maars, and Veniaminof), Alaska, from 1995-2006
Michael P. Doukas, Kenneth A. McGee
2007, Open-File Report 2007-1400
INTRODUCTION This report presents gas emission rates from data collected during numerous airborne plume-measurement flights at Alaskan volcanoes since 1995. These flights began in about 1990 as means to establish baseline values of volcanic gas emissions during periods of quiescence and to identify anomalous levels of degassing that might signal the...
Hawaiian Volcano Observatory 1975 Annual Administrative Report
Jennifer S. Nakata
2007, Open-File Report 2007-1335
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Total dissolved gas and water temperature in the lower Columbia River, Oregon and Washington, 2007: Quality-assurance data and comparison to water-quality standards
Dwight Q. Tanner, Heather M. Bragg, Matthew W. Johnston
2007, Open-File Report 2007-1408
Significant Findings When water is released through the spillways of dams, air is entrained in the water, increasing the downstream concentration of dissolved gases. Excess dissolved-gas concentrations can have adverse effects on freshwater aquatic life. The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers, collected dissolved-gas...
Climate variation at Flagstaff, Arizona - 1950 to 2007
Richard Hereford
2007, Open-File Report 2007-1410
Much scientific research demonstrates the existence of recent climate variation, particularly global warming. Climate prediction models forecast that climate will change; it will become warmer, droughts will increase in number and severity, and extreme climate events will recur often—desiccating aridity, extremely wet, unusually warm, or even frigid at times. However,...
The ecology of the Southwestern Willow Flycatcher in central Arizona - A 10-year synthesis report
Eben H. Paxton, Mark K. Sogge, Scott L. Durst, Tad C. Theimer, James R. Hatten
2007, Open-File Report 2007-1381
BACKGROUND From 1996 to 2005, the U.S. Geological Survey (USGS) conducted a demographic study of the Southwestern Willow Flycatcher (Empidonax traillii extimus) in Arizona in collaboration with the Arizona Game and Fish Department (AGFD). The study was begun the year following the listing of the Southwestern Willow Flycatcher as an endangered...
Sulfur contamination in the Florida Everglades: Initial examination of mitigation strategies
William H. Orem
2007, Open-File Report 2007-1374
Introduction Sulfate contamination of the Everglades is a serious water quality issue facing restoration of this ecosystem. Sulfate concentrations in some marsh areas are more than 60 times background concentrations, and sulfate in excess of background levels covers an estimated 60% of the freshwater Everglades (Orem et al., 1997; Stober...
Variations in City Exposure and Sensitivity to Tsunami Hazards in Oregon
Nathan Wood
2007, Scientific Investigations Report 2007-5283
Evidence of past events and modeling of potential future events suggest that tsunamis are significant threats to Oregon coastal communities. Although a potential tsunami-inundation zone from a Cascadia Subduction Zone earthquake has been delineated, what is in this area and how communities have chosen to develop within it have not...
Cost-Benefit Analysis of Computer Resources for Machine Learning
Richard A. Champion
2007, Open-File Report 2007-1398
Machine learning describes pattern-recognition algorithms - in this case, probabilistic neural networks (PNNs). These can be computationally intensive, in part because of the nonlinear optimizer, a numerical process that calibrates the PNN by minimizing a sum of squared errors. This report suggests efficiencies that are expressed as cost and benefit....
The Miocene Topanga group of southern California — A 100-year history of changes in stratigraphic nomenclature
Russell H. Campbell, Thane H. McCulloh, John G. Vedder
2007, Open-File Report 2007-1385
A review of selected literature summarizes the origin and chronology of changes in usage of 'Topanga' in the Miocene stratigraphic nomenclature of the Los Angeles Basin and adjacent areas in southern California. The review was done to summarize and reconcile some differences in Miocene stratigraphic nomenclature as applied to geologic...
Hawaiian Volcano Observatory 1976 Annual Administrative Report
Jennifer S. Nakata
2007, Open-File Report 2007-1336
INTRODUCTORY NOTE The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. The quarterly reports...
Bedrock Geologic Map of the Headwaters Region of the Cullasaja River, Macon and Jackson Counties, North Carolina
William C. Burton
2007, Scientific Investigations Map 2887
The headwaters region of the Cullasaja River is underlain by metasedimentary and meta-igneous rocks of the Neoproterozoic Ashe Metamorphic Suite, including gneiss, schist, and amphibolite, that were intruded during Ordovician time by elongate bodies of trondhjemite, a felsic plutonic rock. Deformation, metamorphism, and intrusion occurred roughly simultaneously during the Taconic...
Rocky Mountain Snowpack Chemistry at Selected Sites, 2004
George P. Ingersoll, M. Alisa Mast, Leora Nanus, Heather H. Handran, David J. Manthorne, Douglas M. Hultstrand
2007, Open-File Report 2007-1045
During spring 2004, the U.S. Geological Survey in cooperation with the National Park Service and the U.S. Department of Agriculture, Forest Service collected and analyzed snowpack samples for 65 sites in the Rocky Mountain region from New Mexico to Montana. Snowpacks were sampled from late February through early April and...
Water, bed-sediment, and fish-tissue quality within the Standing Rock Sioux Reservation, North Dakota and South Dakota, September 2006
William C. Damschen, Robert F. Lundgren
2007, Scientific Investigations Report 2007-5268
During September 2006, samples from public water-delivery systems, ground water, surface water, bed-sediment, and fish-tissue sources were collected at 32 locations within the Standing Rock Sioux Reservation and analyzed to aid in the evaluation of any immediate water-quality concerns. Samples were collected from Solen, Selfridge, and Fort Yates, North Dakota,...
PAGER - Rapid Assessment of an Earthquake's Impact
Paul S. Earle, David J. Wald
2007, Fact Sheet 2007-3101
PAGER (Prompt Assessment of Global Earthquakes for Response) is an automated system to rapidly assess the number of people and regions exposed to severe shaking by an earthquake, and inform emergency responders, government agencies, and the media to the scope of the potential disaster. PAGER monitors the U.S. Geological Survey?s...
Urban-Related Environmental Variables and Their Relation with Patterns in Biological Community Structure in the Fountain Creek Basin, Colorado, 2003-2005
Robert E. Zuellig, James F. Bruce, Erin E. Evans, Stogner
2007, Scientific Investigations Report 2007-5225
In 2003, the U.S. Geological Survey, in cooperation with Colorado Springs City Engineering, began a study to evaluate the influence of urbanization on stream ecosystems. To accomplish this task, invertebrate, fish, stream discharge, habitat, water-chemistry, and land-use data were collected from 13 sites in the Fountain Creek basin from 2003...
Side-scan sonar imaging of the Colorado River, Grand Canyon
Roberto Anima, Florence L. Wong, David Hogg, Peter Galanis
2007, Open-File Report 2007-1216
This paper presents data collection methods and side-scan sonar data collected along the Colorado River in Grand Canyon in August and September of 2000. The purpose of the data collection effort was to image the distribution of sand between Glen Canyon Dam and river mile 87.4 before and after the...
Temperature anomalies in the Lower Suwannee River and tidal creeks, Florida, 2005
Ellen A. Raabe, Elzbieta Bialkowska-Jelinska
2007, Open-File Report 2007-1311
Temperature anomalies in coastal waters were detected with Thermal Infrared imagery of the Lower Suwannee River (LSR) and nearshore tidal marshes on Florida’s Gulf Coast. Imagery included 1.5-m-resolution day and night Thermal Infrared (TIR) and 0.75-m-resolution Color Infrared (CIR) imagery acquired on 2-3 March 2005. Coincident temperature readings were collected...
Landsat Image Mosaic of Antarctica (LIMA)
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3116
For most of us, Antarctica was at best a distant acquaintance. Now, with the Landsat Image Mosaic of Antarctica (LIMA), we are on intimate terms. In stunning, up-close and personal detail, LIMA brings Antarctica to life. Explore this virtually cloudless, seamless, most geometrically accurate, and highest resolution satellite mosaic of Antarctica. A...
