Remote Sensing and Hydrologic Modeling of Arid Watersheds PDF Download
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Author: Thomas W. Gardner
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 198
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Book Description
Author: Thomas W. Gardner
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 198
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
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Book Description
The increasing availability of digital elevation data (DED) created from remotely sensed data has promoted the development of computer algorithms for the calculation of geomorphometric properties of the land surface. These include parameters that are tedious or impossible to do by hand, for example, stream properties by order and flow path mapping for every location within the drainage basin. Flow paths especially are critical for water routing in hydrologic models. These algorithms can be used to explore spatial trends in landscape properties as a function of rock type, climate or neotectonic environment. The DED can be readily linked with a geographic information system (GIS) which is used to parameterize a quasi-physically based surface runoff model. Various representations (Shreve orders) of the watershed are created by simplifying a stream network delineated from the DED. Different Shreve orders produce significantly different geomorphometrics that affect simulated runoff volumes. At one of the study sites, the DED are not of sufficient detail to allow stream network extraction. Therefore, classification of SPOT panchromatic data was used to delineate ephemeral, fluvial networks on this low-relief, arid basin. A one pixel proximity search classified correctly over 80 percent of the channelized flow. 3 figs., 2 tabs.
Author: Howard Wheater
Publisher: Cambridge University Press
ISBN: 1139468081
Category : Science
Languages : en
Pages : 222
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Book Description
Arid and semi-arid regions are defined as areas where water is at its most scarce. The hydrological regime in these areas is extreme and highly variable, and they face great pressures to deliver and manage freshwater resources. However, there is no guidance on the decision support tools that are needed to underpin flood and water resource management in arid areas. UNESCO initiated the Global network for Water and Development Information for arid lands (GWADI), and arranged a workshop of the world's leading experts to discuss these issues. This book presents chapters from contributors to the workshop, and includes case studies from the world's major arid regions to demonstrate model applications, and web links to tutorials and state-of-the-art modelling software. This volume is a valuable reference for researchers and engineers working on the water resources of arid and semi-arid regions.
Author: Howard Wheater
Publisher: Cambridge University Press
ISBN: 9780521869188
Category : Science
Languages : en
Pages : 222
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Book Description
Arid and semi-arid regions are defined as areas where water is at its most scarce. The hydrological regime in these areas is extreme and highly variable, and they face great pressures to deliver and manage freshwater resources. However, there is no guidance on the decision support tools that are needed to underpin flood and water resource management in arid areas. UNESCO initiated the Global network for Water and Development Information for arid lands (GWADI), and arranged a workshop of the world's leading experts to discuss these issues. This book presents chapters from contributors to the workshop, and includes case studies from the world's major arid regions to demonstrate model applications, and web links to tutorials and state of the art modelling software. This volume is a valuable reference for researchers and engineers working on the water resources of arid and semi-arid regions.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789250040707
Category : Business & Economics
Languages : en
Pages : 108
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Book Description
This publication presents the results of an international workshop which was organized in Montpellier, France, in December 1995. The purpose of the workshop was to review the state of the art in the use of remote sensing for water resources assessment and management with special reference to operational techniques. Emphasis was given to surface hydrology, with applications for arid and semi-arid areas in developing countries for which such techniques are believed to be of particular relevance. Cette publication presente les resultats d'un atelier international qui a ete organise a Montpellier en decembre 1995 sur le theme ''Teledetection et ressources en eaux''. L'objectif de cet atelier etait de faire le point sur les techniques et methodes operationnelles d'utilisation de la teledetection pour l'evaluation et la gestion des ressources en eaux. L'accent a ete mis sur l'hydrologie de surface et sur des exemples d'application pratique de ces methodes. L'atelier s'est interesse tout particulierement aux problemes des pays arides et semi-arides en developpement pour lesquels ces techniques peuvent representer un atout important."
Author: Howard S. Wheater
Publisher: Cambridge University Press
ISBN: 1139489720
Category : Science
Languages : en
Pages :
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Book Description
Arid and semi-arid regions face major challenges in the management of scarce freshwater resources under pressures of population, economic development, climate change, pollution and over-abstraction. Groundwater is commonly the most important water resource in these areas. Groundwater models are widely used globally to understand groundwater systems and to guide decisions on management. However, the hydrology of arid and semi-arid areas is very different from that of humid regions, and there is little guidance on the special challenges of groundwater modelling for these areas. This book brings together the experience of internationally leading experts to fill a gap in the scientific and technical literature. It introduces state-of-the-art methods for modelling groundwater resources, illustrated with a wide-ranging set of illustrative examples from around the world. The book is valuable for researchers, practitioners in developed and developing countries, and graduate students in hydrology, hydrogeology, water resources management, environmental engineering and geography.
Author: Chaitanya Baliram Pande
Publisher: Springer Nature
ISBN: 3030472442
Category : Technology & Engineering
Languages : en
Pages : 81
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Book Description
This book presents a case study on a semi-arid region, Maharashtra State, India, and discusses problems concerning a broad range of areas: sustainable watershed development; watershed management; groundwater condition; land and resource development plans; thematic maps on e.g. land use, soil types and soil erosion; groundwater recharge site selection; remote sensing and GIS; and soil and water conservation structures. The book’s focus is on creating a land and water resource development plan and environmental management for groundwater recharge development using remote sensing and GIS technology in the case study region, which is situated in the Akola and Buldhana districts of Maharashtra. Its goal is to promote awareness for sustainable watershed development and planning in semi-arid regions by highlighting the problems of, and plans for, groundwater and surface water pollution and sustainable watershed development. These aspects are of great importance to watershed and natural resources planning and management, and need to be exploited and managed sustainably. Given its scope, the book will be of interest to all scientists, research scholars and graduate students of remote sensing, hydrology, hydrogeology, water resource engineering, agricultural engineering and related areas who want to acquire detailed information on watershed planning and sustainable water resource planning in semi-arid regions, or to find new methodologies and techniques for studying the feedback mechanisms between forms and processes.
Author: Ondieki, Christopher Misati
Publisher: IGI Global
ISBN: 1522527206
Category : Science
Languages : en
Pages : 294
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Book Description
The management of water resources is extremely important for survival. Depending on the climate, certain regions require different strategies to maintain sustainable hydrological systems. Hydrology and Best Practices for Managing Water Resources in Arid and Semi-Arid Lands is a crucial scholarly resource that outlines current trends in water management and offers solutions for the future of this growing field. Highlighting pertinent topics such as hydrological processes modelling, satellite hydrology, water pollution, and climate resources, this publication is ideal for environmental engineers, academicians, graduate students, and researchers that are eager to discover more about the issues and processes currently shaping water management technology.
Author: Weili Duan
Publisher:
ISBN: 9783036527017
Category :
Languages : en
Pages : 294
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Book Description
Water resources are the most valuable resources of sustainable socio-economic development, which is significantly affected by climate change and human activities. Water resources assessment is an urgent need for implementation of the perfect water resources management, but it is difficult to accurately evaluate the quantity and quality of water resources, especially in arid regions and high-altitude regions with sparse gauged data. This book hosts 24 papers devoted to remote sensing in hydrology and water resources management, which summarizes the recent advancement in remote sensing technology for hydrology analysis such as satellite remote sensing for water resources management, water quality monitoring and evaluation using remote sensing data, remote sensing for detecting the global impact of climate extremes, the use of remote sensing data for improved calibration of hydrological models, and so on. In general, the book will contribute to promote the application of remote sensing technology in water resources.
Author: Gert A. Schultz
Publisher: Springer Science & Business Media
ISBN: 3642595839
Category : Science
Languages : en
Pages : 498
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Book Description
The book provides comprehensive information on possible applications of remote sensing data for hydrological monitoring and modelling as well as for water management decisions. Mathematical theory is provided only as far as it is necessary for understanding the underlying principles. The book is especially timely because of new programs and sensors that are or will be realised. ESA, NASA, NASDA as well as the Indian and the Brazilian Space Agency have recently launched satellites or developed plans for new sensor systems that will be especially pertinent to hydrology and water management. New techniques are presented whose structure differ from conventional hydrological models due to the nature of remotely sensed data.
