National volcanic ash operations plan for aviation
United States Department of Commerce, National Oceanic and Atmospheric Administration
2007, Report
The National Aviation Weather Program Strategic Plan (1997) and the National Aviation Weather Initiatives (1999) both identified volcanic ash as a high-priority informational need to aviation services. The risk to aviation from airborne volcanic ash is known and includes degraded engine performance (including flameout), loss of visibility, failure of critical...
Lava effusion rate definition and measurement: a review
Sonia Calvari, Jonathan Dehn, A. Harris
2007, Bulletin of Volcanology (70) 1-22
Measurement of effusion rate is a primary objective for studies that model lava flow and magma system dynamics, as well as for monitoring efforts during on-going eruptions. However, its exact definition remains a source of confusion, and problems occur when comparing volume flux values that are averaged over different time...
The health hazards of volcanic ash--A guide for the public
C. Horwell, P. Baxter
2007, Report
This document has been prepared by the International Volcanic Health Hazard Network (IVHHN), Cities and Volcanoes Commission, GNS Science and the United States Geological Survey (USGS) to promote the safety of those who experience volcanic ashfall. This guide explains the potential health effects of volcanic ash and gives details on...
Guidelines on preparedness before, during, and after an ashfall
C. Horwell
2007, Report
This document has been prepared by the International Volcanic Health Hazard Network (IVHHN), Cities and Volcanoes Commission, GNS Science and the United States Geological Survey (USGS) to promote the safety of those who experience volcanic ashfall. It details procedures to follow if warning of a volcanic ashfall is given, recommends...
Observations of volcanic tremor during January-February 2005 eruption of Mt. Veniaminof, Alaska
Slivio De Angelis, Stephen R. McNutt
2007, Bulletin of Volcanology (69) 927-940
Mt. Veniaminof, Alaska Peninsula, is a stratovolcano with a summit ice-filled caldera containing a small intracaldera cone and active vent. From January 2 to February 21, 2005, Mt. Veniaminof erupted. The eruption was characterized by numerous small ash emissions (VEI 0 to 1) and accompanied by low-frequency earthquake activity and...
Swarms of repeating long-period earthquakes at Shishaldin Volcano, Alaska, 2001-2004
Tanja Petersen
2007, Journal of Volcanology and Geothermal Research (166) 177-192
During 2001–2004, a series of four periods of elevated long-period seismic activity, each lasting about 1–2 months, occurred at Shishaldin Volcano, Aleutian Islands, Alaska. The time periods are termed swarms of repeating events, reflecting an abundance of earthquakes with highly similar waveforms that indicate stable, non-destructive...
Geographic distribution: Elaphe vulpina (Western Foxsnake)
K.D. Bowen, E.A. Beever
2007, Herpetological Review (38) 486-486
A geographic description of the distribution of Elaphe vulpina (Western Foxsnake) in northern Michigan. ...
Analytical volcano deformation source models
Michael Lisowski
Daniel Dzurisin, editor(s)
2007, Book chapter, Volcano deformation--Geodetic monitoring techniques
Primary volcanic landforms are created by the ascent and eruption of magma. The ascending magma displaces and interacts with surrounding rock and fluids as it creates new pathways, flows through cracks or conduits, vesiculates, and accumulates in underground reservoirs. The formation of new pathways and pressure changes within existing...
The morphology and evolution of the Stromboli 2002-2003 lava flow field--An example of a basaltic flow field emplaced on a steep slope
Luigi Lodato, A. Harris, L. Spampinato, Sonia Calvari, J. Dehn, M. Patrick
2007, Bulletin of Volcanology (69) 661-679
The use of a hand-held thermal camera during the 2002–2003 Stromboli effusive eruption proved essential in tracking the development of flow field structures and in measuring related eruption parameters, such as the number of active vents and flow lengths. The steep underlying slope on which the flow field was emplaced...
Predicting and validating the motion of an ash cloud during the 2006 eruption of Mount Augustine volcano
Richard L. Collins, Javier Fochesatto, Kenneth Sassen, Peter W. Webley, David E. Atkinson, Kenneson G. Dean, Catherine F. Cahill, Kohei Mizutani
2007, Journal of the National Institute of Information and Communications Technology (54) 17-28
On 11 January 2006, Mount Augustine volcano in southern Alaska began erupting after 20- year repose. The Anchorage Forecast Office of the National Weather Service (NWS) issued an advisory on 28 January for Kodiak City. On 31 January, Alaska Airlines cancelled all flights to and from Anchorage after multiple advisories...
Extensive hydrothermal rock alteration in a low pH, steam-heated environment--Hot Springs Basin, Yellowstone National Park
S. Hurwitz, J. B. Lowenstern, D. Bergfeld, C. Werner, H. Heasler, C. Jaworowski
2007, Conference Paper, Warer-rock interaction 12
No abstract available....
Incremental assembly and prolonged consolidation of Cordilleran magma chambers--Evidence from the Southern Rocky Mountain volcanic field
Peter W. Lipman
2007, Geosphere (3) 42-70
Recent inference that Mesozoic Cordilleran plutons grew incrementally during >106 yr intervals, without the presence of voluminous eruptible magma at any stage, minimizes close associations with large ignimbrite calderas. Alternatively, Tertiary ignimbrites in the Rocky Mountains and elsewhere, with volumes of 1–5 × 103 km3, record multistage histories...
Pāhoehoe flow cooling, discharge, and coverage rates from thermal image chronometry
Jonathan Dehn, Christopher M. Hamilton, A. J. L. Harris, Richard A. Herd, M.R. James, Luigi Lodato, Andrea Steffke
2007, Geophysical Research Letters (34)
Theoretically- and empirically-derived cooling rates for active pāhoehoe lava flows show that surface cooling is controlled by conductive heat loss through a crust that is thickening with the square root of time. The model is based on a linear relationship that links log(time) with surface cooling. This predictable cooling behavior can...
Seismo-acoustic signals associated with degassing explosions recorded at Shishaldin Volcano, Alaska, 2003-2004
T. Petersen
2007, Bulletin of Volcanology (69) 527-536
In summer 2003, a Chaparral Model 2 microphone was deployed at Shishaldin Volcano, Aleutian Islands, Alaska. The pressure sensor was co-located with a short-period seismometer on the volcano’s north flank at a distance of 6.62 km from the active summit vent. The seismo-acoustic data exhibit a correlation between impulsive acoustic signals...
Precursory seismicity associated with frequent, large ice avalanches on Iliamna Volcano, Alaska, USA
Jacqueline Caplan-Auerbach, C. Huggel
2007, Journal of Glaciology (53) 128-140
Since 1994, at least six major (volume>106 m3) ice and rock avalanches have occurred on Iliamna volcano, Alaska, USA. Each of the avalanches was preceded by up to 2 hours of seismicity believed to represent the initial stages of failure. Each seismic sequence begins with a series of repeating earthquakes...
Eruption and deposition of the Fisher Tuff (Alaska)--Evidence for the evolution of pyroclastic flows
Alain Burgisser, J.E. Gardner, P. Stelling
2007, Journal of Geology (115) 417-435
Recognition that the Fisher Tuff (Unimak Island, Alaska) was deposited on the leeside of an ∼500–700‐m‐high mountain range (Tugamak Range) more than 10 km away from its source played a major role in defining pyroclastic flows as momentum‐driven currents. We reexamined the Fisher Tuff to evaluate whether deposition from expanded...
Glacier-volcano interactions in the north crater of Mt. Wrangell, Alaska
Carl Abston, Roman J. Motyka, Stephen McNutt, Martin Luthi, Martin Truffer
2007, Annals of Glaciology (45) 48-57
Glaciological and related observations from 1961 to 2005 at the summit of Mt Wrangell (62.008 N, 144.028W; 4317 m a.s.l.), a massive glacier-covered shield volcano in south-central Alaska, show marked changes that appear to have been initiated by the Great Alaska Earthquake (MW = 9.2) of 27 March 1964. The...
Directed blasts and blast-generated pyroclastic density currents: a comparison of the Bezymianny 1956, Mount St Helens 1980, and Soufrière Hills, Montserrat 1997 eruptions and deposits
Alexander Belousov, Barry Voight, Marina Belousova
2007, Bulletin of Volcanology (69) 701-740
We compare eruptive dynamics, effects and deposits of the Bezymianny 1956 (BZ), Mount St Helens 1980 (MSH), and Soufrière Hills volcano, Montserrat 1997 (SHV) eruptions, the key events of which included powerful directed blasts. Each blast subsequently generated a high-energy stratified pyroclastic density current (PDC) with a high speed at...
Paleo-perspectives on climate and ecosystem change
Gregory T. Pederson, C. Whitlock, E. Watson, B.H. Luckman, L.J. Graumlich
Tony Prato, Daniel B. Fagre, editor(s)
2007, Book chapter, Sustaining Rocky Mountain landscapes: Science, Policy and management of the Crown of the Continent ecosystem
No abstract available....
Scale-dependent approaches to modeling spatial epidemiology of chronic wasting disease.
Mary M. Conner, John E. Gross, Paul C. Cross, Michael R. Ebinger, Robert Gillies, Michael D. Samuel, Michael W. Miller
2007, Book
This e-book is the product of a second workshop that was funded and promoted by the United States Geological Survey to enhance cooperation between states for the management of chronic wasting disease (CWD). The first workshop addressed issues surrounding the statistical design and collection of surveillance data for CWD. The...
Achieving Ecosystem Sustainability
Tony Prato, Daniel B. Fagre
2007, Book chapter, Sustaining Rocky Mountain Landscapes: Science, Policy and Management of the Crown of the Continent Ecosystem
No abstract available....
Monitoring alpine plants for climate change: The North American GLORIA Project
C. Millar, Daniel B. Fagre
2007, Mountain Views (1)
Alpine Environments Globally, alpine environments are hotspots of biodiversity, often harboring higher diversity of plant species than corresponding areas at lower elevations. These regions are also likely to experience more severe and rapid change in climate than lowlands under conditions of anthropogenic warming (Theurillat & Guisan 2001; Halloy & Mark 2003;...
Adapting to the reality of climate change at Glacier National Park, Montana, USA
Daniel B. Fagre
2007, Conference Paper, Proceedings of the first international conference on the impact of climate change: On high-mountain systems
The glaciers of Glacier National Park (GNP) are disappearing rapidly and likely will be gone by 2030. These alpine glaciers have been continuously present for approximately 7,000 years so their loss from GNP in another 25 years underscores the significance of current climate change. There are presently only 27 glaciers...
Preface
Tony Prato, Daniel B. Fagre
Tony Prato, Daniel B. Fagre, editor(s)
2007, Book chapter, Sustaining Rocky Mountain Landscapes: Science, Policy and Management of the Crown of the Continent Ecosystem
No abstract available....
Hydrology and geomorphology of the Snake River in Grand Teton National Park
Nicholas C. Nelson, John C. Schmidt
2007, Report
The influence of significant tributaries that join the Snake River within 10 km of Jackson Lake Dam (JLD) mitigate some impacts resulting from nearly 100 years of flow regulation in Grand Teton National Park. I analyzed measured and estimated unregulated flow data for all segments of the study area by...
