ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration
ABSTRACT. The relationship between snow cover and the degree of surface disturbance caused by winter seismic vehicles was investigated on the Arctic Coastal Plain of the Arctic National Wildlife Refuge in northeastern Alaska. Ninety study plots were established on seismic lines and camp moves in tus...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.542.1825 2023-05-15T14:19:32+02:00 ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration Nancy A. Felix Martha K. Raynolds The Pennsylvania State University CiteSeerX Archives 1988 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.1825 http://pubs.aina.ucalgary.ca/arctic/Arctic42-1-62.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.1825 http://pubs.aina.ucalgary.ca/arctic/Arctic42-1-62.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/Arctic42-1-62.pdf Key words surface disturbance winter seismic exploration seismic trails tundra snow depth Alaska Arctic National Wildlife Refuge Arctic Coastal Plain text 1988 ftciteseerx 2016-01-08T11:07:05Z ABSTRACT. The relationship between snow cover and the degree of surface disturbance caused by winter seismic vehicles was investigated on the Arctic Coastal Plain of the Arctic National Wildlife Refuge in northeastern Alaska. Ninety study plots were established on seismic lines and camp moves in tussock tundra and moist sedge-shrub tundra. Total snow depth and its components, slab layer and depth hoar, were measured during the winter. Plant cover changes, tussock disturbance, visibility and disturbance levels were determined at the study plots in the summer. Disturbance was found to be generally lower when snow depths were greater. In tussock tundra, plots with snow depths over 25 cm had significantly less disturbance than those with under 25 cm (p < 0.05). The relationship between snow cover and disturbance was less clear in moist sedge-shrub tundra, where disturbance appeared to be less at snow depths above 25 cm, but these differences were not statistically significant (p < 0.05). Slab depth, which does not include the loose layer of depth hoar, provided a better measure of protective snow cover in moist sedge-shrub tundra, as slab depths over 20 cm resulted in significantly less di turbance (p < 0.05). Moderate-level disturbance (25-50 % decrease in plant cover) did not occur on trails where snow depths were at least 25 cm in tussock tundra and 35 cm in moist sedge-shrub tundra. Low-level disturbances (less than 25 % decrease in plant cover) occurred on trails with snow depths as high as 45 cm in tussock tundra and 72 cm in moist sedge-shrub tundra. Text Arctic Arctic Tundra Alaska Unknown Arctic |
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Key words surface disturbance winter seismic exploration seismic trails tundra snow depth Alaska Arctic National Wildlife Refuge Arctic Coastal Plain |
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Key words surface disturbance winter seismic exploration seismic trails tundra snow depth Alaska Arctic National Wildlife Refuge Arctic Coastal Plain Nancy A. Felix Martha K. Raynolds ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration |
topic_facet |
Key words surface disturbance winter seismic exploration seismic trails tundra snow depth Alaska Arctic National Wildlife Refuge Arctic Coastal Plain |
description |
ABSTRACT. The relationship between snow cover and the degree of surface disturbance caused by winter seismic vehicles was investigated on the Arctic Coastal Plain of the Arctic National Wildlife Refuge in northeastern Alaska. Ninety study plots were established on seismic lines and camp moves in tussock tundra and moist sedge-shrub tundra. Total snow depth and its components, slab layer and depth hoar, were measured during the winter. Plant cover changes, tussock disturbance, visibility and disturbance levels were determined at the study plots in the summer. Disturbance was found to be generally lower when snow depths were greater. In tussock tundra, plots with snow depths over 25 cm had significantly less disturbance than those with under 25 cm (p < 0.05). The relationship between snow cover and disturbance was less clear in moist sedge-shrub tundra, where disturbance appeared to be less at snow depths above 25 cm, but these differences were not statistically significant (p < 0.05). Slab depth, which does not include the loose layer of depth hoar, provided a better measure of protective snow cover in moist sedge-shrub tundra, as slab depths over 20 cm resulted in significantly less di turbance (p < 0.05). Moderate-level disturbance (25-50 % decrease in plant cover) did not occur on trails where snow depths were at least 25 cm in tussock tundra and 35 cm in moist sedge-shrub tundra. Low-level disturbances (less than 25 % decrease in plant cover) occurred on trails with snow depths as high as 45 cm in tussock tundra and 72 cm in moist sedge-shrub tundra. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Nancy A. Felix Martha K. Raynolds |
author_facet |
Nancy A. Felix Martha K. Raynolds |
author_sort |
Nancy A. Felix |
title |
ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration |
title_short |
ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration |
title_full |
ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration |
title_fullStr |
ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration |
title_full_unstemmed |
ARCTIC The Role of Snow Cover in Limiting Surface Disturbance Caused by Winter Seismic Exploration |
title_sort |
arctic the role of snow cover in limiting surface disturbance caused by winter seismic exploration |
publishDate |
1988 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.1825 http://pubs.aina.ucalgary.ca/arctic/Arctic42-1-62.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Tundra Alaska |
genre_facet |
Arctic Arctic Tundra Alaska |
op_source |
http://pubs.aina.ucalgary.ca/arctic/Arctic42-1-62.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.542.1825 http://pubs.aina.ucalgary.ca/arctic/Arctic42-1-62.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766291361044103168 |