Daniel B. Fagre, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 82
Modeling and measuring snow for assessing climate change impacts in Glacier National Park, Montana Modeling and measuring snow for assessing climate change impacts in Glacier National Park, Montana
A 12-year program of global change research at Glacier National Park by the U.S. Geological Survey and numerous collaborators has made progress in quantifying the role of snow as a driver of mountain ecosystem processes. Spatially extensive snow surveys during the annual accumulation/ablation cycle covered two mountain watersheds and approximately 1,000 km2 . Over 7,000 snow depth and...
Authors
Daniel Fagre, David Selkowitz, Blase Reardon, Karen Holzer, Lisa McKeon
Modeling and monitoring ecosystem responses to climate change in 3 North American mountain ranges Modeling and monitoring ecosystem responses to climate change in 3 North American mountain ranges
No abstract available
Authors
Daniel Fagre, D. Peterson
Satellite image atlas of glaciers of the world — North America Satellite image atlas of glaciers of the world — North America
No abstract available.
Authors
Richard Williams, Jane Ferrigno, C. Ommanney, Roger Wheate, Robert Sidjak, Garnet Whyte, R. Koerner, Martin Jeffries, John Andrews, Gerald Holdsworth, John D. Jacobs, Garry Clarke, Phillip Howarth, Robert Krimmel, Carl Key, Daniel Fagre, R. Menicke, Sidney White
An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes
The accumulation and melting of mountain snowpacks are major drivers of ecosystem processes in the Rocky Mountains. These include the influence of snow water equivalent (SWE) timing and amount of release on soil moisture for annual tree growth, and alpine stream discharge and temperature that control aquatic biota life histories. Snowfall also brings with it atmospheric deposition...
Authors
Daniel Fagre, Kathy Tonnessen, Kristi Morris, George Ingersoll, Lisa McKeon, Karen Holzer
Application of snow models to snow removal operations on the Going-to-the-Sun Road, Glacier National Park Application of snow models to snow removal operations on the Going-to-the-Sun Road, Glacier National Park
Snow removal, and the attendant avalanche risk for road crews, is a major issue on mountain highways worldwide. The Going-to-the-Sun Road is the only road that crosses Glacier National Park, Montana. This 80-km highway ascends over 1200m along the wall of a glaciated basin and crosses the continental divide. The annual opening of the road is critical to the regional economy and there is...
Authors
Daniel Fagre, Frederick Klasner
Abiotic and biotic controls of spatial pattern at alpine treeline Abiotic and biotic controls of spatial pattern at alpine treeline
At alpine treeline, trees and krummholz forms affect the environment in ways that increase their growth and reproduction. We assess the way in which these positive feedbacks combine in spatial patterns to alter the environment in the neighborhood of existing plants. The research is significant because areas of alpine tundra are susceptible to encroachment by woody species as climate...
Authors
George Malanson, Ningchuan Xiao, K.J. Alftine, Mathew Bekker, David Butler, Daniel Brown, David Cairns, Daniel Fagre, Stephen Walsh
The Upper Midwest Aerospace Consortium Environmental Information Network: Building ‘Learning Communities’ in the Northern Great Plains The Upper Midwest Aerospace Consortium Environmental Information Network: Building ‘Learning Communities’ in the Northern Great Plains
In the last two decades alone, the U.S. and large portions of the world have witnessed what can be aptly be described as an explosion of scientific information and technological innovations that has permeated almost every aspect of our lives. Given these trends, it is clear that science and the understanding of science are becoming increasingly more relevant and essential to decision...
Authors
Leigh Welling, George Seielstad, Pat McClurg, Daniel Fagre
Assessing simulated ecosystem processes for climate variability research at Glacier National Park, USA Assessing simulated ecosystem processes for climate variability research at Glacier National Park, USA
Glacier National Park served as a test site for ecosystem analyses that involved a suite of integrated models embedded within a geographic information system. The goal of the exercise was to provide managers with maps that could illustrate probable shifts in vegetation, net primary production (NPP), and hydrologic responses associated with two selected climatic scenarios. The climatic...
Authors
Joseph White, Steven Running, Peter Thornton, Robert Keane, Kevin Ryan, Daniel Fagre, Carl Key
Analysis of ERS 1 synthetic aperture radar data of frozen lakes in northern Montana and implications for climate studies Analysis of ERS 1 synthetic aperture radar data of frozen lakes in northern Montana and implications for climate studies
Lakes that freeze each winter are good indicators of regional climate change if key parameters, such as freeze-up and breakup date and maximum ice thickness, are measured over a decade-scale time frame. Synthetic aperture radar (SAR) satellite data have proven to be especially useful for measurement of climatologically significant parameters characteristic of frozen lakes. In this paper...
Authors
Dorothy Hall, Daniel Fagre, Fritz Klasner, Gregg Linebaugh, Glen Liston
Predators of the Whitetail Predators of the Whitetail
white-tailed deer have long been important prey for large predators. Before Europeans colonized North America, deer roaming the forested region east of the Great Plains and areas along the Gulf of Mexico were hunted by wolves and mountain lions, and by Native Americans for food and clothing materials. Today, wolves and mountain lions are largely gone from the white-tailed deer range of...
Authors
Daniel Fagre
Science and Products
Filter Total Items: 82
Modeling and measuring snow for assessing climate change impacts in Glacier National Park, Montana Modeling and measuring snow for assessing climate change impacts in Glacier National Park, Montana
A 12-year program of global change research at Glacier National Park by the U.S. Geological Survey and numerous collaborators has made progress in quantifying the role of snow as a driver of mountain ecosystem processes. Spatially extensive snow surveys during the annual accumulation/ablation cycle covered two mountain watersheds and approximately 1,000 km2 . Over 7,000 snow depth and...
Authors
Daniel Fagre, David Selkowitz, Blase Reardon, Karen Holzer, Lisa McKeon
Modeling and monitoring ecosystem responses to climate change in 3 North American mountain ranges Modeling and monitoring ecosystem responses to climate change in 3 North American mountain ranges
No abstract available
Authors
Daniel Fagre, D. Peterson
Satellite image atlas of glaciers of the world — North America Satellite image atlas of glaciers of the world — North America
No abstract available.
Authors
Richard Williams, Jane Ferrigno, C. Ommanney, Roger Wheate, Robert Sidjak, Garnet Whyte, R. Koerner, Martin Jeffries, John Andrews, Gerald Holdsworth, John D. Jacobs, Garry Clarke, Phillip Howarth, Robert Krimmel, Carl Key, Daniel Fagre, R. Menicke, Sidney White
An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes An elevational gradient in snowpack chemical loading at Glacier National Park, Montana: implications for ecosystem processes
The accumulation and melting of mountain snowpacks are major drivers of ecosystem processes in the Rocky Mountains. These include the influence of snow water equivalent (SWE) timing and amount of release on soil moisture for annual tree growth, and alpine stream discharge and temperature that control aquatic biota life histories. Snowfall also brings with it atmospheric deposition...
Authors
Daniel Fagre, Kathy Tonnessen, Kristi Morris, George Ingersoll, Lisa McKeon, Karen Holzer
Application of snow models to snow removal operations on the Going-to-the-Sun Road, Glacier National Park Application of snow models to snow removal operations on the Going-to-the-Sun Road, Glacier National Park
Snow removal, and the attendant avalanche risk for road crews, is a major issue on mountain highways worldwide. The Going-to-the-Sun Road is the only road that crosses Glacier National Park, Montana. This 80-km highway ascends over 1200m along the wall of a glaciated basin and crosses the continental divide. The annual opening of the road is critical to the regional economy and there is...
Authors
Daniel Fagre, Frederick Klasner
Abiotic and biotic controls of spatial pattern at alpine treeline Abiotic and biotic controls of spatial pattern at alpine treeline
At alpine treeline, trees and krummholz forms affect the environment in ways that increase their growth and reproduction. We assess the way in which these positive feedbacks combine in spatial patterns to alter the environment in the neighborhood of existing plants. The research is significant because areas of alpine tundra are susceptible to encroachment by woody species as climate...
Authors
George Malanson, Ningchuan Xiao, K.J. Alftine, Mathew Bekker, David Butler, Daniel Brown, David Cairns, Daniel Fagre, Stephen Walsh
The Upper Midwest Aerospace Consortium Environmental Information Network: Building ‘Learning Communities’ in the Northern Great Plains The Upper Midwest Aerospace Consortium Environmental Information Network: Building ‘Learning Communities’ in the Northern Great Plains
In the last two decades alone, the U.S. and large portions of the world have witnessed what can be aptly be described as an explosion of scientific information and technological innovations that has permeated almost every aspect of our lives. Given these trends, it is clear that science and the understanding of science are becoming increasingly more relevant and essential to decision...
Authors
Leigh Welling, George Seielstad, Pat McClurg, Daniel Fagre
Assessing simulated ecosystem processes for climate variability research at Glacier National Park, USA Assessing simulated ecosystem processes for climate variability research at Glacier National Park, USA
Glacier National Park served as a test site for ecosystem analyses that involved a suite of integrated models embedded within a geographic information system. The goal of the exercise was to provide managers with maps that could illustrate probable shifts in vegetation, net primary production (NPP), and hydrologic responses associated with two selected climatic scenarios. The climatic...
Authors
Joseph White, Steven Running, Peter Thornton, Robert Keane, Kevin Ryan, Daniel Fagre, Carl Key
Analysis of ERS 1 synthetic aperture radar data of frozen lakes in northern Montana and implications for climate studies Analysis of ERS 1 synthetic aperture radar data of frozen lakes in northern Montana and implications for climate studies
Lakes that freeze each winter are good indicators of regional climate change if key parameters, such as freeze-up and breakup date and maximum ice thickness, are measured over a decade-scale time frame. Synthetic aperture radar (SAR) satellite data have proven to be especially useful for measurement of climatologically significant parameters characteristic of frozen lakes. In this paper...
Authors
Dorothy Hall, Daniel Fagre, Fritz Klasner, Gregg Linebaugh, Glen Liston
Predators of the Whitetail Predators of the Whitetail
white-tailed deer have long been important prey for large predators. Before Europeans colonized North America, deer roaming the forested region east of the Great Plains and areas along the Gulf of Mexico were hunted by wolves and mountain lions, and by Native Americans for food and clothing materials. Today, wolves and mountain lions are largely gone from the white-tailed deer range of...
Authors
Daniel Fagre