ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER
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 presen...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.505.123 2023-05-15T18:42:14+02:00 ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER Daniel B. Fagre The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.505.123 http://www.nrmsc.usgs.gov/files/norock/products/GCC/Fagre_Bogota_Conference_paper_FINAL.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.505.123 http://www.nrmsc.usgs.gov/files/norock/products/GCC/Fagre_Bogota_Conference_paper_FINAL.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.nrmsc.usgs.gov/files/norock/products/GCC/Fagre_Bogota_Conference_paper_FINAL.pdf text ftciteseerx 2016-01-08T09:20:02Z 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 remaining of the 150 estimated to have existed when GNP was created in 1910. Mean annual temperature in GNP has increased 1.60C during the past cen-tury, three times the global mean increase. The temperature increase has affected other parts of the mountain ecosystem, too. Snowpacks hold less water equivalent and melt 2+ weeks earlier in the spring. Forest growth rates have increased, alpine treelines have expanded upward and be-come denser, and subalpine meadows have been invaded by high elevation tree species. These latter responses can be mostly attributed to longer growing seasons and warmer temperatures. Ecosystem modeling of possible future changes in the GNP mountain environments suggest that increased tree growth rates and evapotranspiration will reduce soil moisture and streamflow. The drier forests, with more wood, will burn more frequently and with greater severity, leading to degra-dation in air quality and increased risk to people and infrastructure. Management of forest fires is an important issue in the arid western United States. In 2003, 13 % of GNP’s 4,082 km2 was burned in three large fires and numerous smaller fires. Managers can accomplish some of their goals, such as preserving threatened wildlife populations, by altering their management of fires. In 2003, intense efforts were successfully made to divert the fires away from valuable grizzly bear (Ursus arctos horribilis) habitat that contained huckleberry plants (Vaccinium spp.) necessary to ensure bear survival through the winter. Text Ursus arctos Unknown |
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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 remaining of the 150 estimated to have existed when GNP was created in 1910. Mean annual temperature in GNP has increased 1.60C during the past cen-tury, three times the global mean increase. The temperature increase has affected other parts of the mountain ecosystem, too. Snowpacks hold less water equivalent and melt 2+ weeks earlier in the spring. Forest growth rates have increased, alpine treelines have expanded upward and be-come denser, and subalpine meadows have been invaded by high elevation tree species. These latter responses can be mostly attributed to longer growing seasons and warmer temperatures. Ecosystem modeling of possible future changes in the GNP mountain environments suggest that increased tree growth rates and evapotranspiration will reduce soil moisture and streamflow. The drier forests, with more wood, will burn more frequently and with greater severity, leading to degra-dation in air quality and increased risk to people and infrastructure. Management of forest fires is an important issue in the arid western United States. In 2003, 13 % of GNP’s 4,082 km2 was burned in three large fires and numerous smaller fires. Managers can accomplish some of their goals, such as preserving threatened wildlife populations, by altering their management of fires. In 2003, intense efforts were successfully made to divert the fires away from valuable grizzly bear (Ursus arctos horribilis) habitat that contained huckleberry plants (Vaccinium spp.) necessary to ensure bear survival through the winter. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Daniel B. Fagre |
spellingShingle |
Daniel B. Fagre ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER |
author_facet |
Daniel B. Fagre |
author_sort |
Daniel B. Fagre |
title |
ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER |
title_short |
ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER |
title_full |
ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER |
title_fullStr |
ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER |
title_full_unstemmed |
ADAPTING TO THE REALITY OF CLIMATE CHANGE AT GLACIER |
title_sort |
adapting to the reality of climate change at glacier |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.505.123 http://www.nrmsc.usgs.gov/files/norock/products/GCC/Fagre_Bogota_Conference_paper_FINAL.pdf |
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Ursus arctos |
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Ursus arctos |
op_source |
http://www.nrmsc.usgs.gov/files/norock/products/GCC/Fagre_Bogota_Conference_paper_FINAL.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.505.123 http://www.nrmsc.usgs.gov/files/norock/products/GCC/Fagre_Bogota_Conference_paper_FINAL.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766231861871247360 |