Download or read book Methods for Determining Streamflows and Water Availability in Oregon written by E. George Robison and published by . This book was released on 1991 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining Surface Water Availability in Oregon written by and published by . This book was released on 2002 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining Surface Water Availability in Oregon written by Richard M. Cooper and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oregon Water Supply Outlook and Federal state private Cooperative Snow Surveys written by and published by . This book was released on 1986-05 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest practices and streamflow in western Oregon written by Robert Dennis Harr and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest management activities, including roadbuilding, clearcut logging, and broadcast burning, can change certain portions of the forest hydrologic cycle. Watershed studies and other hydrologic research in the Coast and western Cascade Ranges of Oregon have shown that these changes may increase annual water yield up to 62 centimeters, double minimum flows in summer, and increase fall peak flows up to 200 percent and small winter peak flows up to 45 percent in small watersheds. Changes in streamflow resulting from clearcut logging had little effect on either onsite damage to stream channels and hydraulic structures or downstream flooding when yarding caused only light disturbance of soil. By increasing the size of larger peak flows, roadbuilding and soil compaction may cause onsite damage in small, headwater basins. Increases in annual yield and minimum flows may be substantial on small watersheds that are clearcut; under sustained yield forest management, such increases are masked in large, parent watersheds by unaltered streamflow from unlogged watersheds.
Download or read book Method for Determining Mean Annual Streamflow for Selected Drainage Basins in Oregon S W Washington written by United States. Army. Corps of Engineers. Portland District and published by . This book was released on 1976 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Summaries of Streamflow Data in Oregon written by Roy E. Wellman and published by . This book was released on 1993 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistical Summaries of Streamflow Data in Oregon written by R. L. Moffatt and published by . This book was released on 1990 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground water Hydrology of the Upper Deschutes Basin Oregon written by and published by . This book was released on 2001 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Streamflow data Program in Oregon written by David J. Lystrom and published by . This book was released on 1970 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oregon s Long range Requirements for Water written by Oregon. State Water Resources Board and published by . This book was released on 1969 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes in Streamflow Following Timber Harvest in Southwestern Oregon Classic Reprint written by Robert Dennis Harr and published by Forgotten Books. This book was released on 2017-12-12 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Changes in Streamflow Following Timber Harvest in Southwestern Oregon Changes in size of annual and seasonal yields and instantaneous peak flows were determined on three small, experimental watersheds following three silvicultural methods of timber harvest. Changes are related to changes in forest hydrologic system. Keywords: Streamflow - )forestry methods, water supply, logging -hydrology, runoff - )vegetation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Assessing the Impact of Mitigation on Stream Flow in the Deschutes Basin written by Richard M. Cooper and published by . This book was released on 2008 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Resources Investigations in Oregon written by Geological Survey (U.S.). Water Resources Division and published by . This book was released on 1966 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation and Streamflow Depletion in Columbia River Basin Above The Dalles Oregon written by Wilbur Douglas Simons and published by . This book was released on 1953 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Quantitative Method for Using an Inventory of the Soil and Water Resources of the State of Oregon to Determine Human Population Carrying Capacities for Two Acceptable Qualities of Life written by Don John Karr and published by . This book was released on 1975 with total page 1588 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method was developed for converting the food producing capabilities of Oregon's soils to numerical data from which state and county carrying capacities for human populations could be calculated. Another method was developed for converting the needs for housing and related support construction to numerical data which would consume cultivated soils as the population increased. An existing inventory of the state's soils and their characteristics was used to determine the locations and quantities of soils for each of the 36 counties and 17 major drainage basins. Seven major characteristics and limiting factors were included with other soil type information on 3,102 computer cards. Tabulation of the characteristics and limiting factors is presented in appendices by counties, drainage basins and the state. Streamflow records were obtained for all surface water gauging stations on Oregon streams. Records of the frequency and length of consecutive lower than average streamflow years were determined for significant streams by computer. The carrying capacity for human needs for housing and associated construction, dietary carbohydrates, proteins, and for water were determined for each county, drainage basin and the state for two different qualities of life. The computer program simulated competition between building and agricultural uses for cultivated soils. Printouts included all carrying capacities and final projected equilibrium dates. Oregon's carrying capacity was determined to be about 4.0 million people at a high standard of living, and about 4.8 million at an adequate standard of living. Factors which enhance or limit the carrying capacity were discussed for each county and basin and, for the state as a whole. Suggestions were presented which could refine data to be used for more precise information.
Download or read book Water Supply Outlook and Federal State Private Cooperative Snow Surveys for Oregon written by W. T. Frost and published by Forgotten Books. This book was released on 2018-03-19 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Water Supply Outlook and Federal-State-Private Cooperative Snow Surveys for Oregon: Issued February 8, 1964 The climate of the cultivated and populated areas of the West is characterized by relatively dry summer months. Such precipitation as occurs falls mostly in the Winter and early Spring months when it is of little immediate benefit to growing crops. Most of this precipitation falls as mountain snow which stays on the ground for months, melting later to sustain streamflow during the period of greatest demand during late spring and summer. Thus, nature prov1des in mountain snow an imposing water storage facility. The amount of water stored in mountain snow varies from place to place as well as from year to year and accordingly, so does the runoff of the streams. The best seasonal management of variable western water supplies results from advance estimates of the streamflow. A snow survey con31sts of a series of about ten samples taken with specially designed snow sampling equipment along a permanently marked line, up to 1000 feet in length, called a snow course. The use of snow sampling equipment prov1des snow depth and water equivalent values for each sampling point. The average of these values is reported as the snow survey measurement for a snow course. Snow surveys are made monthly or semi-monthly beginning in January or February and continue through the snow season until April, May or June. Currently more than 1400 western snow courses are measured each year. These measurements furnish the key data for water supply forecasts. Streamflow forecasts are obtained by a comparison of total or maximum snow accumulation, as measured by snow water equivalent, to the subsequent spring and summer or snowmelt season runoff over a period of years. The snow water equivalent measured in selected snow courses provides most of the index to the streamflow forecast for the following season. More accurate forecasts are usually obtained when other factors such as 5011 moisture, base flow and spring precipitation are considered and included in the forecast procedure. Early season forecasts assume average climatic conditions through the snowmelt season. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
