Tanana River Monitoring And Research Program PDF Download
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Author | : Lawrence W. Gatto |
Publisher | : |
Total Pages | : 64 |
Release | : 1984 |
Genre | : Frozen ground |
ISBN | : |
Download Tanana River Monitoring and Research Program Book in PDF, ePub and Kindle
To determine if available data are useful in identifying the characteristics that contributed to erodibility of the banks along two reaches of the Tanana River, existing data on bank vegetation, soils, sediments, and permafrost were examined. Because these data were general and not collected for the purpose of site-specific analysis, an analytical approach was simple and did not include any statistical tests. The data were visually compared to the locations and estimated amounts of historical recession to evaluate if any relationships were obvious. The results of this analysis showed no useful relationships. Vegetation was similar in eroded and uneroded areas and its distribution did not show any obvious relationship to the locations of bank recession. Surface sediments and soils in the eroded and uneroded areas had little, if any, effect on bank erodibility because the river erodes the bank over its entire depth, which is well below this surface zone. The subsurface sediment from eroded and uneroded wells and along transects wtih high and low measured recession was similar. Permafrost occurrences are about equal in eroded and uneroded sites, although it appears that recession can be higher where permafrost is common than where it is absent. In most cases the existing data are either too general or not properly located to be useful in anticipating future locations of bank erosion. In order to predict future erosion, a field project should be initiated to evaluate the influences of bank characteristics and hydraulic forces on bank erosion rates.
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 1984 |
Genre | : |
ISBN | : |
Download Tanana River Monitoring and Research Program: Relationships Among Bank Recession, Vegetation, Soils, Sediments and Permafrost on the Tanana River Near Fairbanks, Alaska Book in PDF, ePub and Kindle
To determine if available data are useful in identifying the characteristics that contributed to erodibility of the banks along two reaches of the Tanana River, existing data on bank vegetation, soils, sediments, and permafrost were examined. Because these data were general and not collected for the purpose of site-specific analysis, an analytical approach was simple and did not include any statistical tests. The data were visually compared to the locations and estimated amounts of historical recession to evaluate if any relationships were obvious. The results of this analysis showed no useful relationships. Vegetation was similar in eroded and uneroded areas and its distribution did not show any obvious relationship to the locations of bank recession. Surface sediments and soils in the eroded and uneroded areas had little, if any, effect on bank erodibility because the river erodes the bank over its entire depth, which is well below this surface zone. The subsurface sediment from eroded and uneroded wells and along transects wtih high and low measured recession was similar. Permafrost occurrences are about equal in eroded and uneroded sites, although it appears that recession can be higher where permafrost is common than where it is absent. In most cases the existing data are either too general or not properly located to be useful in anticipating future locations of bank erosion. In order to predict future erosion, a field project should be initiated to evaluate the influences of bank characteristics and hydraulic forces on bank erosion rates.
Author | : |
Publisher | : |
Total Pages | : 65 |
Release | : 1984 |
Genre | : |
ISBN | : |
Download Tanana River Monitoring and Research Program: Relationships Among Bank Recession, Vegetation, Soils, Sediments and Permafrost on the Tanana River Near Fairbanks, Alaska Book in PDF, ePub and Kindle
To determine if available data are useful in identifying the characteristics that contributed to erodibility of the banks along two reaches of the Tanana River, existing data on bank vegetation, soils, sediments, and permafrost were examined. Because these data were general and not collected for the purpose of site-specific analysis, an analytical approach was simple and did not include any statistical tests. The data were visually compared to the locations and estimated amounts of historical recession to evaluate if any relationships were obvious. The results of this analysis showed no useful relationships. Vegetation was similar in eroded and uneroded areas and its distribution did not show any obvious relationship to the locations of bank recession. Surface sediments and soils in the eroded and uneroded areas had little, if any, effect on bank erodibility because the river erodes the bank over its entire depth, which is well below this surface zone. The subsurface sediment from eroded and uneroded wells and along transects wtih high and low measured recession was similar. Permafrost occurrences are about equal in eroded and uneroded sites, although it appears that recession can be higher where permafrost is common than where it is absent. In most cases the existing data are either too general or not properly located to be useful in anticipating future locations of bank erosion. In order to predict future erosion, a field project should be initiated to evaluate the influences of bank characteristics and hydraulic forces on bank erosion rates.
Author | : |
Publisher | : |
Total Pages | : 8 |
Release | : 1985 |
Genre | : Cold regions |
ISBN | : |
Download CRREL Benchnotes Book in PDF, ePub and Kindle
Author | : Pierre Y. Julien |
Publisher | : Cambridge University Press |
Total Pages | : 527 |
Release | : 2018-04-12 |
Genre | : Science |
ISBN | : 1108683738 |
Download River Mechanics Book in PDF, ePub and Kindle
The second edition of Julien's textbook presents an analysis of rivers from mountain streams to river estuaries. The book is rooted in fundamental principles to promote sound engineering practice. State-of-the-art methods are presented to underline theory and engineering applications. River mechanics blends the dual concepts of water conveyance and sediment transport. Like the first edition, this textbook contains ample details on river equilibrium, river dynamics, bank stabilization, and river engineering. Complementary chapters also cover the physical and mathematical modeling of rivers. As well as being completely updated throughout, three new chapters have been added on watershed dynamics, hillslope stability, and stream restoration. Throughout the text, hundreds of examples, exercises, problems, and case studies assist the reader in learning the essential concepts of river engineering. The textbook is very well illustrated to enhance advanced student learning, while researchers and practitioners will find the book to be an invaluable reference.
Author | : Don R. Mabey |
Publisher | : |
Total Pages | : 424 |
Release | : 1983 |
Genre | : Alaska |
ISBN | : |
Download Mineral-resource Appraisal of the Rolla 10 X 20 Quadrangle, Missouri, as of September 1980 Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 480 |
Release | : 1990 |
Genre | : Cold regions |
ISBN | : |
Download CRREL Report Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 214 |
Release | : 1981 |
Genre | : Alaska |
ISBN | : |
Download Proceedings Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 16 |
Release | : 1972 |
Genre | : |
ISBN | : |
Download Chena River Lakes Flood Control, Fairbanks Book in PDF, ePub and Kindle
Author | : Charles M. Collins |
Publisher | : |
Total Pages | : 62 |
Release | : 1990 |
Genre | : Erosion |
ISBN | : |
Download Morphometric Analyses of Recent Channel Changes on the Tanana River in the Vicinity of Fairbanks, Alaska Book in PDF, ePub and Kindle