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Model For Determining The Short Term Demand For Irrigation Water
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Book Synopsis Model for Determining the Short Term Demand for Irrigation Water by : Australia. Bureau of Agricultural Economics
Download or read book Model for Determining the Short Term Demand for Irrigation Water written by Australia. Bureau of Agricultural Economics and published by . This book was released on 1986 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Model for Determining the Short Term Demand for Irrigation Water by : J. Briggs Clark
Download or read book A Model for Determining the Short Term Demand for Irrigation Water written by J. Briggs Clark and published by . This book was released on 1986 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Economic Modeling of Water by : Glyn Wittwer
Download or read book Economic Modeling of Water written by Glyn Wittwer and published by Springer Science & Business Media. This book was released on 2012-03-14 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book details the innovative TERM (The Enormous Regional Model) approach to regional and national economic modeling, and explains the conversion from a comparative-static to a dynamic model. It moves on to an adaptation of TERM to water policy, including the additional theoretical and database requirements of the dynamic TERM-H2O model. In particular, it examines the contrasting economic impacts of water buyback policy and recurring droughts in the Murray-Darling Basin. South-east Queensland, where climate uncertainty has been borne out by record-breaking drought and the worst floods in living memory, provides a chapter-length case study. The exploration of the policy background and implications of TERM’s dynamic modeling will provide food for thought in policy making circles worldwide, where there is a pressing need for solutions to similarly intractable problems in water management.
Book Synopsis World Water Demand and Supply, 1990 to 2025 by :
Download or read book World Water Demand and Supply, 1990 to 2025 written by and published by IWMI. This book was released on 1998 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents two alternative scenarios of water demand and supply for 118 countries over the 1990 to 2025 period and develops indicators of water scarcity for each country and for the world as a whole. This study is the first step in IWMI’s long-term research goal: to determine the extent and depth of water scarcity, its consequences for individual countries and what can be done about it.
Book Synopsis Micro and Macro-level Approaches for Assessing the Value of Irrigation Water by : Robert C. Johansson
Download or read book Micro and Macro-level Approaches for Assessing the Value of Irrigation Water written by Robert C. Johansson and published by World Bank Publications. This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Many countries are reforming their economies and setting macroeconomic policies that have direct and indirect impact on the performance of the irrigation sector. One reason for the movement toward reform in the water sector across countries is that water resources are increasingly becoming a limiting factor for many human activities. Another reason for increased pressures to address water policy issues is that many countries are in the process of removing barriers to trade, particularly in agricultural commodities. Therefore, knowledge of the value of water when crafting domestic and macroeconomic policies is important to compare the variable impacts of reform across sectors of the economy and populations within the country. Researchers have used many methods for assessing the value of irrigation water. This survey reviews a broad literature to ascertain how two basic questions have been addressed by research over the past few decades. First, what is the value of water across different sectors and levels? Second, how will this value change under different macroeconomic and domestic policies? This survey details a number of methods for approaching these two questions. The literature has been organized according to a progression from theoretical underpinnings to empirical approaches to how the value of irrigation services are relevant to the link between globalization and poverty.
Book Synopsis Modeling Water Resources Management at the Basin Level by : Daene C. McKinney
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.
Book Synopsis Performance Analysis of On-demand Pressurized Irrigation Systems by : Nicola Lamaddalena
Download or read book Performance Analysis of On-demand Pressurized Irrigation Systems written by Nicola Lamaddalena and published by Food & Agriculture Org.. This book was released on 2000 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the strong competition that is arising for water resources the modernisation of irrigation systems is becoming a critical issue. One of the alternatives to modernisation is the use of pressurised systems to replace part of the existing networks. This publication analyses the performance of pressurised irrigation systems operating on demand, and provides revised criteria for the design of such irrigation networks. For this purpose, new approaches and a computer program have been developed. The program has been tested in several field situations in the Mediterranean Basin and has demonstrated its usefulness not only by quickly identifying weak points in irrigation networks but also by identifying the power requirements of pumping stations needed to satisfy varying demand situations.
Book Synopsis Bayesian Data-driven Models for Irrigation Water Management by : Alfonso F. Torres Rua
Download or read book Bayesian Data-driven Models for Irrigation Water Management written by Alfonso F. Torres Rua and published by . This book was released on 2011 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: A crucial decision in the real-time management of today's irrigation systems involves the coordination of diversions and delivery of water to croplands. Since most irrigation systems experience significant lags between when water is diverted and when it should be delivered, an important technical innovation in the next few years will involve improvements in short-term irrigation demand forecasting. The main objective of the researches presented was the development of these critically important models: (1) potential evapotranspiration forecasting; (2) hydraulic model error correction; and (3) estimation of aggregate water demands. These tools are based on statistical machine learning or data-driven modeling. These, of wide application in several areas of engineering analysis, can be used in irrigation and system management to provide improved and timely information to water managers. The development of such models is based on a Bayesian data-driven algorithm called the Relevance Vector Machine (RVM), and an extension of it, the Multivariate Relevance Vector Machine (MVRVM). The use of these types of learning machines has the advantage of avoidance of model overfitting, high robustness in the presence of unseen data, and uncertainty estimation for the results (error bars). The models were applied in an irrigation system located in the Lower Sevier River Basin near Delta, Utah. For the first model, the proposed method allows for estimation of future crop water demand values up to four days in advance. The model uses only daily air temperatures and the MVRVM as mapping algorithm. The second model minimizes the lumped error occurring in hydraulic simulation models. The RVM is applied as an error modeler, providing estimations of the occurring errors during the simulation runs. The third model provides estimation of future water releases for an entire agricultural area based on local data and satellite imagery up to two days in advance. The results obtained indicate the excellent adequacy in terms of accuracy, robustness, and stability, especially in the presence of unseen data. The comparison provided against another data-driven algorithm, of wide use in engineering, the Multilayer Perceptron, further validates the adequacy of use of the RVM and MVRVM for these types of processes.
Book Synopsis Water Law in a Nutshell by : David H. Getches
Download or read book Water Law in a Nutshell written by David H. Getches and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Softbound - New, softbound print book.
Book Synopsis Quarterly Review of the Rural Economy by :
Download or read book Quarterly Review of the Rural Economy written by and published by . This book was released on 1987 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determining the Economic Value of Water by : Robert A. Young
Download or read book Determining the Economic Value of Water written by Robert A. Young and published by Routledge. This book was released on 2014-07-23 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water provides benefits as a commodity for agriculture, industry, and households, and as a public good such as fisheries habitat, water quality and recreational use. To aid in cost-benefit analysis under conditions where market determined price signals are usually unavailable, economists have developed a range of alternative valuation methods for measuring economic benefits. This volume provides the most comprehensive exposition to-date of the application of economic valuation methods to proposed water resources investments and policies. It provides a conceptual framework for valuation of both commodity and public good uses of water, addressing non-market valuation techniques appropriate to measuring public benefits - including water quality improvement, recreation, and fish habitat enhancement. The book describes the various measurement methods, illustrates how they are applied in practice, and discusses their strengths, limitations, and appropriate roles. In this second edition, all chapters have been thoroughly updated, and in particular the coverage of water markets and valuation of ecosystem services from water has been expanded. Robert Young, author of the 2005 edition, has been joined for this new edition by John Loomis, who brings additional expertise on ecosystem services and the environmental economics of water for recreational and other public good uses of water.
Book Synopsis Irrigation Demand in a Changing Climate by : Calvin R. Shaneyfelt
Download or read book Irrigation Demand in a Changing Climate written by Calvin R. Shaneyfelt and published by . This book was released on 2014 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper estimates an irrigation water demand function using disaggregate climate and well data over a 33 year time period. Aggregating climate information over long periods, like a year, causes a loss of detail on temporal climatic variation, while aggregating climate information over space causes a loss of detail on spatial variation. This analysis uses disaggregate climate variation at a temporospatial level to determine the effects of climate on groundwater use. Results show that increased heat, measured in cooling degree-days, correlates with increased water use, while increased precipitation correlates with decreased water use. However, the effects are generally magnified for later summer months, and are lower at the beginning and end of the growing season – with a few exceptions. Soil type effects groundwater demand for July in particular, and has a ubiquitous effect at the marginal level. Other economic and physical variables were controlled for in the analysis. Using NOAA climate scenarios, which depict climate under increased carbon dioxide for three time periods in the future, we perform an ex-ante analysis using the coefficients derived from our model to determine future irrigation demand. In both high- and low-emissions scenarios, irrigation demand increases. The water increases derived in the forecast range from 10 – 15% from the average in earlier years, to as much as 27% in later years.
Book Synopsis Determining the Economic Value of Water by : Robert A. Young
Download or read book Determining the Economic Value of Water written by Robert A. Young and published by Routledge. This book was released on 2014-07-23 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water provides benefits as a commodity for agriculture, industry, and households, and as a public good such as fisheries habitat, water quality and recreational use. To aid in cost-benefit analysis under conditions where market determined price signals are usually unavailable, economists have developed a range of alternative valuation methods for measuring economic benefits. This volume provides the most comprehensive exposition to-date of the application of economic valuation methods to proposed water resources investments and policies. It provides a conceptual framework for valuation of both commodity and public good uses of water, addressing non-market valuation techniques appropriate to measuring public benefits - including water quality improvement, recreation, and fish habitat enhancement. The book describes the various measurement methods, illustrates how they are applied in practice, and discusses their strengths, limitations, and appropriate roles. In this second edition, all chapters have been thoroughly updated, and in particular the coverage of water markets and valuation of ecosystem services from water has been expanded. Robert Young, author of the 2005 edition, has been joined for this new edition by John Loomis, who brings additional expertise on ecosystem services and the environmental economics of water for recreational and other public good uses of water.
Book Synopsis Water Demand Forecasting by : V. Gardiner
Download or read book Water Demand Forecasting written by V. Gardiner and published by CRC Press. This book was released on 1986-06-30 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an outcome of the workshop on water demand forecasting in 1985. It summarises the 'state-of-the-art' in water demand forecasting, and identifies some of its links with environmental issues. The book discusses some of the issues raised in more detail and provides case studies.
Book Synopsis Assessing On-farm Water-use Efficiency by :
Download or read book Assessing On-farm Water-use Efficiency written by and published by . This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9789251035856 Total Pages :324 pages Book Rating :4.0/5 (358 download)
Book Synopsis Irrigation Water Delivery Models by : Food and Agriculture Organization of the United Nations
Download or read book Irrigation Water Delivery Models written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1994 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selected Irrigation Return Flow Quality Abstracts 1972-1973 by : Gaylord V. Skogerboe
Download or read book Selected Irrigation Return Flow Quality Abstracts 1972-1973 written by Gaylord V. Skogerboe and published by . This book was released on 1974 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
