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Author : Anonim
Publisher : Unknown
Page : 610 pages
File Size : 40,8 Mb
Release : 1998
Category : Hydrologic models
ISBN : MINN:31951D02264549R
Author : Anonim
Publisher : Unknown
Page : 664 pages
File Size : 50,9 Mb
Release : 2001
Category : Sedimentation and deposition
ISBN : MINN:31951D02024694K
Author : United States. Bureau of Reclamation. Research Office
Publisher : Unknown
Page : 134 pages
File Size : 50,7 Mb
Release : 1997
Category : Hydrography
ISBN : UCBK:C077812287
Author : Anonim
Publisher : Unknown
Page : 88 pages
File Size : 53,9 Mb
Release : 1999
Category : Geology
ISBN : MINN:31951D01919569L
Author : Geological Survey (U.S.)
Publisher : Unknown
Page : 308 pages
File Size : 54,5 Mb
Release : 1999
Category : Geology
ISBN : UCR:31210014409674
Author : Anonim
Publisher : Unknown
Page : 490 pages
File Size : 53,5 Mb
Release : 1993
Category : Hydrologic models
ISBN : UCR:31210014433583
Author : Anonim
Publisher : Unknown
Page : 754 pages
File Size : 52,7 Mb
Release : 2000
Category : Tahoe, Lake, Watershed (Calif. and Nev.)
ISBN : MINN:31951D02974718B
Author : S.K. Mishra,V.P. Singh
Publisher : Springer Science & Business Media
Page : 535 pages
File Size : 53,8 Mb
Release : 2013-03-14
Category : Science
ISBN : 9789401701471
The Soil Conservation Service (SCS) curve number (CN) method is one of the most popular methods for computing the runoff volume from a rainstorm. It is popular because it is simple, easy to understand and apply, and stable, and accounts for most of the runoff producing watershed characteristics, such as soil type, land use, hydrologic condition, and antecedent moisture condition. The SCS-CN method was originally developed for its use on small agricultural watersheds and has since been extended and applied to rural, forest and urban watersheds. Since the inception of the method, it has been applied to a wide range of environments. In recent years, the method has received much attention in the hydrologic literature. The SCS-CN method was first published in 1956 in Section-4 of the National Engineering Handbook of Soil Conservation Service (now called the Natural Resources Conservation Service), U. S. Department of Agriculture. The publication has since been revised several times. However, the contents of the methodology have been nonetheless more or less the same. Being an agency methodology, the method has not passed through the process of a peer review and is, in general, accepted in the form it exists. Despite several limitations of the method and even questionable credibility at times, it has been in continuous use for the simple reason that it works fairly well at the field level.
Author : Vijay P. Singh,Donald K. Frevert
Publisher : CRC Press
Page : 678 pages
File Size : 50,5 Mb
Release : 2010-09-28
Category : Science
ISBN : 9781420037432
Watershed modeling is at the heart of modern hydrology, supplying rich information that is vital to addressing resource planning, environmental, and social problems. Even in light of this important role, many books relegate the subject to a single chapter while books devoted to modeling focus only on a specific area of application. Recognizing the
Author : Stewart Rounds,Tamara M. Wood
Publisher : Unknown
Page : 64 pages
File Size : 41,8 Mb
Release : 2001
Category : Streamflow
ISBN : UCR:31210024947457
Author : Geological Survey (U.S.)
Publisher : Unknown
Page : 296 pages
File Size : 54,7 Mb
Release : 1999
Category : Geology
ISBN : OSU:32435084747435
Author : Vijay P. Singh,Donald K. Frevert
Publisher : Water Resources Publication
Page : 930 pages
File Size : 55,9 Mb
Release : 2002
Category : Nature
ISBN : 1887201343
Comprehensive account of some of the most popular models of large watershed hydrology ~~ of interest to all hydrologic modelers and model users and a welcome and timely edition to any modeling library
Author : Task Committee on GIS Modules and Distributed Models of the Watershed
Publisher : ASCE Publications
Page : 132 pages
File Size : 50,6 Mb
Release : 1999-01-01
Category : Technology & Engineering
ISBN : 0784474737
Prepared by the Task Committee on GIS Modules and Distributed Models of the Watershed of ASCE. This report guides professionals in selecting the most advantageous applications of geographic information system (GIS) modules and distributed models for watershed runoff. Recent advances in technology offer hydrologic engineers, watershed managers, and data collection agencies unprecedented capabilities for storing and manipulating data. With the advent of Digital Elevation Models (DEM), Triangulated Irregular Networks (TIN), Digital Line Graphs (DLG), and GIS software, the use of watershed modeling among industry professionals has increased at an incredible rate. With this growth, it is increasingly difficult for practitioners to choose the most effective use of the technology. This report identifies state-of-the-art GIS hydrology analysis software and techniques, as well as GIS types and map projections. It covers data commonly required for hydrologic analysis, limitations of available data, and the integration of watershed hydrological analysis software and GIS techniques. The appendix highlights nine examples of watershed modeling systems, including the Watershed Modeling System (WMS), the Soil and Water Assessment Tool (SWAT), and the Hydrologic Model CASC2D.
Author : Anonim
Publisher : Unknown
Page : 674 pages
File Size : 43,7 Mb
Release : 2003
Category : Hydrology
ISBN : MINN:31951P009628959
Author : Marcello Benedini,George Tsakiris
Publisher : Springer Science & Business Media
Page : 292 pages
File Size : 51,7 Mb
Release : 2013-02-11
Category : Science
ISBN : 9789400755093
The main objective of the Water Framework Directive in the European countries is to achieve a “good status” of all the water bodies, in the integrated management of river basins. In order to assess the impact of improvement measures, water quality models are necessary. During the previous decades the progress in computer technology and computational methods has supported the development of advanced mathematical models for pollutant transport in rivers and streams. This book is intended to provide the fundamental knowledge needed for a deeper understanding of these models and the development of new ones, which will fulfil future quality requirements in water resources management. This book focuses on the fundamentals of computational techniques required in water quality modelling. Advection, dispersion and concentrated sources or sinks of contaminants lead to the formulation of the fundamental differential equation of pollutant transport. Its integration, according to appropriate initial and boundary conditions and with the knowledge of the velocity field, allows for pollutant behaviour to be assessed in the entire water body. An analytical integration is convenient only in one-dimensional approach with considerable simplification. Integration in the numerical field is useful for taking into account particular aspects of water body and pollutants. To ensure their reliability, the models require accurate calibration and validation, based on proper data, taken from direct measurements. In addition, sensitivity and uncertainty analysis are also of utmost importance. All the above items are discussed in detail in the 21 chapters of the book, which is written in a didactic form for professionals and students.