Download or read book A Precipitation runoff Model for the Analysis of the Effects of Water Withdrawals and Land use Change on Streamflow in the Usquepaug Queen River Basin Rhode Island written by Phillip J. Zarriello and published by . This book was released on 2004 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Precipitation runoff Model for Analysis of the Effects of Water Withdrawals on Streamflow Ipswich River Basin Massachusetts written by Phillip J. Zarriello and published by . This book was released on 2000 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: ...Water withdrawals from the Ipswich River Basin affect aquatic habitat, water quality, and recreational use of the river; describes the development, calibration and limitations of a precipitation-runoff model, and simulations made with the model to determine the effects of water use and land use patterns on streamflows; also describes the study area, the data used in the model and the methods used to obtain those data and the methods used to estimate the effects of the pumping of wells on streamflow...
Download or read book Hydrogeology and simulated groundwater flow in the Salt Pond region of southern Rhode Island written by and published by DIANE Publishing. This book was released on with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2004 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of a Precipitation runoff Model to Simulate Natural Streamflow Conditions in the Methow River Basin Washington written by David Matthew Ely and published by . This book was released on 2001 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precipitation runoff and Streamflow routing Models for the Willamette River Basin Oregon written by Antonius Laenen and published by . This book was released on 1997 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Changes and Trends in Streamflow During Floods and Droughts in the Urbanizing Christina River Basin written by Kimberly C. Cloud and published by ProQuest. This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Christina River Basin is a vital resource to nearly half a million people in three different states that is undergoing rapid growth. The goal of this study is to quantify the changes in land use and population and identify the potential impacts on streamflow in the region. Land use and population data from four different time frames dating back to 1970 are analyzed using a GIS to measure the rate of increase in urbanization and population. Streamflow data from the USGS and precipitation data from the NCDC were examined to look for trends that reflect the impact of urbanization on the Basin. Several variables, including runoff coefficient, maximum instantaneous peak flow and minimum 7-day low flow, the highest 10 discharge and lowest 10 discharge events were all reviewed by water year. The results show that agriculture and forest land use in the Christina River Basin is being converted to residential and other urban land uses at a rate of approximately 5% every ten years. This is causing the impervious cover of the region to increase by 2-3% in the same time frame. At the current rate, impervious cover across the Basin will exceed the threshold of what a watershed can handle without significant impairment in quality and habitat within the next 15 to 20 years. Population is also increasing approximately 10-15% every ten years across the entire Basin and is reflective of the urban sprawl as residents spread out from the most urbanized areas. Seven stream gages were paired with nearby precipitation gages to measure trends in streamflow for the seven discharge areas. The analysis reflects that peak instantaneous discharges are increasing and minimum 7-day low flows (baseflow) are decreasing. The highest 10 discharge events (floods) and lowest 10 streamflow events (droughts) are getting worse over time. Precipitation has not changed significantly over time and the changes do not closely correspond with changes in streamflow, leading to the conclusion that floods and droughts are getting more severe due to urbanization.
Download or read book Adjustment of Peak Discharge Rates for Urbanization written by David L. Gundlach and published by . This book was released on 1979 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various investigators have shown that changes from rural to urban conditions within a watershed, in general, significantly affect flood flows. Recorded annual peak discharge rates (or peak discharge rates above a given base) for a basin that has been undergoing a change in land-use conditions represent a nonstationary time series. The series must be adjusted to a specific land-use condition (typically present conditions) prior to performing a statistical frequency analysis. It was the aim of this note to present a procedure utilizing a single event rainfall-runoff model for transforming recorded peak discharges at a gaging station to a consistent set that reflects existing land-use conditions. Methods presented can be used as a guide to determine an existing-condition discharge frequency curve of annual peaks (or peak discharge rates above a given base) when utilizing a single event rainfall-runoff model. The multiplan-ratio option of HEC-1 permits the user to calculate systematically the hdyrologic response of several storm events for a given set of land-use conditions. The adjustment procedure described is also applicable when predicting runoff for estimated future conditions. (Author).
Download or read book Simulation of Ground water Flow and Rainfall Runoff with Emphasis on the Effects of Land Cover Whittlesey Creek Bayfield County Wisconsin 1999 2001 written by Bernard N. Lenz and published by . This book was released on 2003 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Runoff in the United States written by Walter Basil Langbein and published by . This book was released on 1949 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Water Resources Management at the Basin Level written by Daene C. McKinney and published by IWMI. This book was released on 1999 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is facing severe and growing challenges in maintainig water quality and meeting the rapidly growing demand for water resources. In addition, water used for irrigation, the largest use of water in most developing countries, will likely have to be diverted increasingly to meet the needs of urban areas and industry whilst remaining a prime engine of agricultural growth. Finally, environmental and other in-stream water demands become more important as economies develop. The river basin has been acknowledged to be the appropriate unit of analysis to address these chanllenges facing water resources management: and modeling at this scale can provide essential information for policy makers in their decisions on allication of resources. This paper reviews the state of the art of modeling approaches to integrated water resources management at the river basin scale, with particular focus on the potential of coupled economic hydrologic models, and concludes with directions for future modeling exercises.
Download or read book Rainfall Runoff Modelling written by Keith J. Beven and published by John Wiley & Sons. This book was released on 2003 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amid climatic changes linked to global warming, ongoing changes in land-use patterns, and growing international concern with the environment it is increasingly important to understand the potential impact of these changes on the environment. Rainfall-runoff modeling is an important predictor of that impact. This book introduces rainfall-runoff models that have been developed over the past 24-30 years, giving examples of their practical applications. It provides a summary of available techniques for rainfall modeling based upon the most recent research, but in a way that serves as a primer for the subject. Provides an overview of how catchment rainfall-runoff systems work A history of rainfall-runoff models Examples of models can be downloaded over the Internet Looks at uncertainty in model prediction
Download or read book Precipitation runoff Modeling System written by and published by . This book was released on 1984 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the St Johns River Water Supply Impact Study written by National Research Council and published by National Academies Press. This book was released on 2009-10-08 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The St. Johns River is the longest river in Florida, containing extensive freshwater wetlands, numerous large lakes, a wide estuarine channel, and a correspondingly diverse array of native flora and fauna. Water resource management in the river's watershed is the responsibility of the St. Johns River Water Management District (the District). The District must provide water for the region's 4.4 million residents as well as numerous industrial and agricultural users, all while protecting natural systems within the river basin. With population growth in the watershed expected to surpass 7.2 million in 2030, the District, through its water resources planning process, has begun to identify alternative sources of water beyond its traditional groundwater sources, including the potential withdrawal of 262 million gallons per day from the St. Johns River. To more comprehensively evaluate the environmental impacts of withdrawing this water from the river, the District embarked on a two-year Water Supply Impact Study (WSIS), and requested the involvement of the National Research Council. The present volume reviews the Phase I work of the WSIS and provides recommendations for improving Phase II.
Download or read book Using a Mathematical Model to Assess the Hydrological Effects of Land use Change written by K. J. Langford and published by . This book was released on 1976 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Models for Water Resources Management Planning and Policy written by United States. Congress. Office of Technology Assessment and published by . This book was released on 1982 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of models for water resources management planning and policy written by U.S. Office of Technology Assessment and published by DIANE Publishing. This book was released on 1982 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
