Spring Breakup Of The Delta River Alaska PDF Download
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Author | : C. W. Slaughter |
Publisher | : |
Total Pages | : 44 |
Release | : 1971 |
Genre | : Ice on rivers, lakes, etc |
ISBN | : |
Download Spring Breakup of the Delta River, Alaska Book in PDF, ePub and Kindle
Spring 'breakup' of snow and ice on the Delta River, Alaska, was monitored in 1967. Breakup on this braided river was a relatively calm event, with gradual development of open-water channels from headwaters to mouth. Air temperature data at Big Delta, near the mouth of the river, indicated an accumulation of 30 positive degree-days (F) above 32F, using mean daily values, prior to first observation of continuous open water from headwaters to mouth; a corresponding value, but using maximum daily air temperatures, was 224 degree-days (F). A photographic sequence of breakup at several points along the river is included. (Author).
Author | : Charles W. Slaughter |
Publisher | : |
Total Pages | : 22 |
Release | : 1968 |
Genre | : Ice on rivers, lakes, etc |
ISBN | : |
Download Technical Note Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 100 |
Release | : 1971 |
Genre | : Delta River (Alaska) |
ISBN | : |
Download Hydrologic Reconnaissance of the Delta River and Its Drainage Basin, Alaska Book in PDF, ePub and Kindle
A one-year reconnaissance study was made of a large braided glacial river and its drainage basin for which a minimum of hydrometric and meteorologic data existed. The report includes estimates of the water balance, flow-duration curves, and sediment characteristics, and descriptions of stream response to glacial melt and rain, channel geometry and channel processes. Mean annual basin precipitation is estimated at 40.4 in. and mean annual loss of permanent glacial storage is about 1 in. About 30% of this leaves the basin as evapotranspiration, 50% as stream flow, and 20% as groundwater flow. Characteristics of response to glacial melt are outlined. Flow peaks near the mouth occur within 24 hours of rainfall greater than 0.5 in./day at foothills meteorological stations; rains of less than that amount do not generally produce discernible stream response. Stream channel geometry is described in detail. Most channels on the lower floodplain are asymmetrical and are roughly triangular or parabolic, and have high width/depth ratios. At-a-station hydraulic geometry is described. Surveys and ground and aerial photography are used to describe channel changes. (Author).
Author | : Terry T. McFadden |
Publisher | : |
Total Pages | : 56 |
Release | : 1977 |
Genre | : Bridges |
ISBN | : |
Download Ice Breakup on the Chena River 1975 and 1976 Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 2754 |
Release | : 1971 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog of United States Government Publications Book in PDF, ePub and Kindle
Author | : Cold Regions Research and Engineering Laboratory (U.S.) |
Publisher | : |
Total Pages | : 386 |
Release | : 1972 |
Genre | : Frozen ground |
ISBN | : |
Download USA CRREL Technical Publications Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 282 |
Release | : 1971 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Author | : United States. Committee on Environmental Studies for Project Chariot |
Publisher | : |
Total Pages | : 1272 |
Release | : 1966 |
Genre | : Travel |
ISBN | : |
Download Environment of the Cape Thompson Region, Alaska Book in PDF, ePub and Kindle
A complete environmental study of the area for Project Chariot, Plowshare Program. Covers physical and bioenvironmental aspects of the land, the coast, the Chukchi sea; the people, radioactivity in the area.
Author | : Cold Regions Research and Engineering Laboratory (U.S.) |
Publisher | : |
Total Pages | : 284 |
Release | : 1992 |
Genre | : Arctic regions |
ISBN | : |
Download CRREL Technical Publications, 1950-1975 Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 530 |
Release | : 2009 |
Genre | : |
ISBN | : |
Download Alaska Railroad Corporation Construction and Operation of a Rail Line Between North Pole and Delta Junction Book in PDF, ePub and Kindle