Author: Jeffrey A. Kirtland
Publisher:
ISBN:
Category : Nooksack River, South Fork (Wash.)
Languages : en
Pages : 0
Book Description
Identifying sources and timing of sediment production and delivery provides information useful to understanding the geomorphology of a forested mountainous watershed in the western Cascade Range of Washington State. Sediment production and delivery is studied by constructing a partial sediment budget for the upper South Fork of the Nooksack River drainage (South Fork drainage). The period of the partial sediment budget extends from 1940 through 1991 and encompasses the pre- and post-management history of the watershed. Four major sediment production and delivery sources - landsliding, streambank erosion, sheet and rill erosion and road-related erosion - were identified in the South Fork drainage. Each source was quantified in the field (1993) to determine its contribution to the volume of sediment produced and delivered to stream channels. The field data were coupled with data obtained from aerial photographs flown in 1940, 1956, 1972, 1979, and 1991 to yield a history of the basin and an estimate of the total sediment production and delivery for the entire study area over 52 years. I document the sediment delivery rate over the 52 years study period to be 110 m3 km-2 yr-1 or 200 metric tons km-2 yr-1 This sediment production rate, which is comparatively less than sediment production rates measured elsewhere in the Pacific Northwest (Kelsey, 1980; Lehre, 1982; Raines, 1991), is attributed to a relatively stable geologic substrate and a lack of a recent massive landslide or major flood event in the South Fork drainage. This does not imply that these large events do not occur; nearly one tenth the land area is underlain by landslide-mobilized material, but that these events have not occurred during the study period.
Sediment Production and Delivery in the Upper South Fork Nooksack River, Northwest Washington, 1940-1991
Author: Jeffrey A. Kirtland
Publisher:
ISBN:
Category : Nooksack River, South Fork (Wash.)
Languages : en
Pages : 0
Book Description
Identifying sources and timing of sediment production and delivery provides information useful to understanding the geomorphology of a forested mountainous watershed in the western Cascade Range of Washington State. Sediment production and delivery is studied by constructing a partial sediment budget for the upper South Fork of the Nooksack River drainage (South Fork drainage). The period of the partial sediment budget extends from 1940 through 1991 and encompasses the pre- and post-management history of the watershed. Four major sediment production and delivery sources - landsliding, streambank erosion, sheet and rill erosion and road-related erosion - were identified in the South Fork drainage. Each source was quantified in the field (1993) to determine its contribution to the volume of sediment produced and delivered to stream channels. The field data were coupled with data obtained from aerial photographs flown in 1940, 1956, 1972, 1979, and 1991 to yield a history of the basin and an estimate of the total sediment production and delivery for the entire study area over 52 years. I document the sediment delivery rate over the 52 years study period to be 110 m3 km-2 yr-1 or 200 metric tons km-2 yr-1 This sediment production rate, which is comparatively less than sediment production rates measured elsewhere in the Pacific Northwest (Kelsey, 1980; Lehre, 1982; Raines, 1991), is attributed to a relatively stable geologic substrate and a lack of a recent massive landslide or major flood event in the South Fork drainage. This does not imply that these large events do not occur; nearly one tenth the land area is underlain by landslide-mobilized material, but that these events have not occurred during the study period.
Publisher:
ISBN:
Category : Nooksack River, South Fork (Wash.)
Languages : en
Pages : 0
Book Description
Identifying sources and timing of sediment production and delivery provides information useful to understanding the geomorphology of a forested mountainous watershed in the western Cascade Range of Washington State. Sediment production and delivery is studied by constructing a partial sediment budget for the upper South Fork of the Nooksack River drainage (South Fork drainage). The period of the partial sediment budget extends from 1940 through 1991 and encompasses the pre- and post-management history of the watershed. Four major sediment production and delivery sources - landsliding, streambank erosion, sheet and rill erosion and road-related erosion - were identified in the South Fork drainage. Each source was quantified in the field (1993) to determine its contribution to the volume of sediment produced and delivered to stream channels. The field data were coupled with data obtained from aerial photographs flown in 1940, 1956, 1972, 1979, and 1991 to yield a history of the basin and an estimate of the total sediment production and delivery for the entire study area over 52 years. I document the sediment delivery rate over the 52 years study period to be 110 m3 km-2 yr-1 or 200 metric tons km-2 yr-1 This sediment production rate, which is comparatively less than sediment production rates measured elsewhere in the Pacific Northwest (Kelsey, 1980; Lehre, 1982; Raines, 1991), is attributed to a relatively stable geologic substrate and a lack of a recent massive landslide or major flood event in the South Fork drainage. This does not imply that these large events do not occur; nearly one tenth the land area is underlain by landslide-mobilized material, but that these events have not occurred during the study period.
A Year in Review for the Pacific Northwest Research Station
Author: Pacific Northwest Research Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 92
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 92
Book Description
Washington Geology
Open-file Report
Natural Resource Management Using Remote Sensing and GIS
Author: Jerry D. Greer
Publisher: American Society for Photogrammetry & Remote Sensing
ISBN:
Category : Nature
Languages : en
Pages : 456
Book Description
"Sponsored by: United States Department of Agriculture, Forest Service Remote Sensing Applications Center, Salt Lake City, Utah and Stephen F. Austin State University, Arthur Temple College of Forestry, Nacogdoches, Texas."
Publisher: American Society for Photogrammetry & Remote Sensing
ISBN:
Category : Nature
Languages : en
Pages : 456
Book Description
"Sponsored by: United States Department of Agriculture, Forest Service Remote Sensing Applications Center, Salt Lake City, Utah and Stephen F. Austin State University, Arthur Temple College of Forestry, Nacogdoches, Texas."
Bibliography of the Geology and Mineral Resources of Washington, 1991-1995
Preliminary Bibliography and Index of the Geology and Mineral Resources of Washington, 1991-1995
Climate Change and Indigenous Peoples in the United States
Author: Julie Koppel Maldonado
Publisher: Springer
ISBN: 3319052667
Category : Science
Languages : en
Pages : 178
Book Description
With a long history and deep connection to the Earth’s resources, indigenous peoples have an intimate understanding and ability to observe the impacts linked to climate change. Traditional ecological knowledge and tribal experience play a key role in developing future scientific solutions for adaptation to the impacts. The book explores climate-related issues for indigenous communities in the United States, including loss of traditional knowledge, forests and ecosystems, food security and traditional foods, as well as water, Arctic sea ice loss, permafrost thaw and relocation. The book also highlights how tribal communities and programs are responding to the changing environments. Fifty authors from tribal communities, academia, government agencies and NGOs contributed to the book. Previously published in Climatic Change, Volume 120, Issue 3, 2013.
Publisher: Springer
ISBN: 3319052667
Category : Science
Languages : en
Pages : 178
Book Description
With a long history and deep connection to the Earth’s resources, indigenous peoples have an intimate understanding and ability to observe the impacts linked to climate change. Traditional ecological knowledge and tribal experience play a key role in developing future scientific solutions for adaptation to the impacts. The book explores climate-related issues for indigenous communities in the United States, including loss of traditional knowledge, forests and ecosystems, food security and traditional foods, as well as water, Arctic sea ice loss, permafrost thaw and relocation. The book also highlights how tribal communities and programs are responding to the changing environments. Fifty authors from tribal communities, academia, government agencies and NGOs contributed to the book. Previously published in Climatic Change, Volume 120, Issue 3, 2013.
Glaciation of the Puget Sound Region
Author: J. Harlen Bretz
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 302
Book Description
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 302
Book Description
Tropical Storm Agnes, June 1972, Basins of the Susquehanna and Potomac Rivers and Maryland Portions of Chesapeake Bay and Atlantic Coast
Author: Gannett Fleming Corddry and Carpenter
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages : 970
Book Description
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages : 970
Book Description