Download or read book Identification of Critical Nonpoint Pollution Source Area Using Geographic Information Systems and Simulation Modeling written by U. Sunday Tim and published by . This book was released on 1991 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation Models GIS and Nonpoint source Pollution written by Joe Makuch and published by . This book was released on 1994 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonpoint Source NPS Pollution Modeling Using Models Integrated with Geographic Information Systems GIS written by and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terrain Analysis written by John P. Wilson and published by John Wiley & Sons. This book was released on 2000-08-03 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dieses Buch untersucht, welchen Einfluß Landschaftsformen, insbesondere Höhenunterschiede, auf die an der Erdoberfläche ablaufenden Prozesse haben. Wasserbewegungen, die Sonneneinstrahlung sowie die Bodenentwicklung und -erosion werden alle mehr oder minder durch die Form der Landschaftsoberfläche gesteuert. Die Anwendungsmöglichkeiten der Landschaftsanalyse sind vielfältig: Sie reichen von Studien über Wasserscheiden und Feuchtgebiete über Bodenkunde und Erosionsstudien, Landschafts- und Landnutzungsstudien bis zu geomorphologischer Forschung und regionalen und globalen Ökologiestudien. Darüber hinaus kann die Landschaftsanalyse auch zu meteorologischen Vorhersagen sowie bei Problemen mit TV- oder Radiosignalempfang eingesetzt werden. Dieses Forschungsgebiet hat in Verbindung mit den jüngsten Fortschritten auf dem Gebiet der GIS und GPS eine rasante Entwicklung durchlaufen. In diesem Band werden alle diese neuen Ansätze und Anwendungsbereiche umfassend erläutert. (y05/00)
Download or read book Geographical Information Systems in Hydrology written by V.P. Singh and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last few years have witnessed an enormous interest in application of GIS in hydrology and water resources. This is partly evidenced by organization of sev eral national and international symposia or conferences under the sponsorship of various professional organizations. This increased interest is, in a large measure, in response to growing public sensitivity to environmental quality and management. The GIS technology has the ability to capture, store, manipulate, analyze, and visualize the diverse sets of geo-referenced data. On the other hand, hydrology is inherently spatial and distributed hydrologic models have large data requirements. The integration of hydrology and GIS is therefore quite natural. The integration involves three major components: (1) spatial data construction, (2) integration of spatial model layers, and (3) GIS and model interface. GIS can assist in design, calibration, modification and comparison of models. This integration is spreading worldwide and is expected to accelerate in the foreseeable future. Substantial op portunities exist in integration of GIS and hydrology. We believe there are enough challenges in use of GIS for conceptualizing and modeling complex hydrologic processes and for globalization of hydrology. The motivation for this book grew out of the desire to provide under one cover a range of applications of GIS tech nology in hydrology. It is hoped that the book will stimulate others to write more comprehensive texts on this subject of growing importance.
Download or read book Oceans and Aquatic Ecosystems Volume I written by Eric Wolanski and published by EOLSS Publications. This book was released on 2009-10-20 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceans and Aquatic Ecosystems theme is a component of Encyclopedia of Natural Resources Policy and Management, in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The theme guides the reader through various pathways followed by surface water on earth. It describes the dominant processes that govern how organisms interact with water and with each other, and how they in turn can modify water properties. This knowledge is important for humanity. Indeed, only by understanding our actions impacts upon water, and the animals and plants living in it, can we learn to exploit water, marine and fresh-water habitats and the living organisms, without destroying the resources on which our livelihood and very survival depend. The Theme on Oceans and Aquatic Ecosystems discusses matters of great relevance to our world such as: Freshwater Wetland Resources and Biology; Problems, Restoration and Conservation of Lakes and Rivers; Coastal Regions; The Oceans and Seas; Oceanic Islands These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.
Download or read book Nutrient criteria technical guidance manual lakes and reservoirs written by and published by DIANE Publishing. This book was released on with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of Critical Runoff Generating Areas Using a Variable Source Area Model written by Jane Rossing Frankenberger and published by . This book was released on 1996 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimating Non point Source Pollutant Loadings Using Geographic Information Systems written by Anil Kumar Dikshit and published by . This book was released on 1994 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrology in the Humid Tropic Environment written by Arnold Ivan Johnson and published by IAHS Press. This book was released on 1998 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of Critical Source Areas for Non Point Source Pollution Control written by Guihuang Chen and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proper identification of critical source areas (CSAs) is crucial for improving the efficiency of pollutant reduction and the economic viability of best management practices (BMPs) aimed at controlling non-point source pollution (NPSP). Different identification criteria, referring to different identification ratios, scales, and methods, affect the determination of CSAs, and then affect the spatial layout of BMPs. Nevertheless, few studies have optimized the BMPs placement in CSAs determined by different identification criteria and selected appropriate identification factors by comparing the effectiveness of BMPs schemes. To address this issue, a simulation-optimization method called simulation-based mixed-integer multi-objective non-linear programming (SMIMONLP) model was proposed by coupling Soil and Water Assessment Tool (SWAT) with mixed-integer multi-objective non-linear programming (MIMONLP). The method was presented to optimize BMPs placement in CSAs identified by different combinations of identification ratios, methods, and scales, while appropriate identification factors were selected by comparing the effectiveness of these BMPs optimization schemes. The effectiveness of these BMPs optimization schemes were evaluated by pollutant reduction, economic cost, and the satisfaction level of the decision maker with the objective function. The developed method was applied to a real case study in the Luan River Basin of North China. By comparing the economic cost and pollutant reduction of BMPs optimization schemes based on CSAs determined by different identification criteria, the results revealed that the economic cost difference of BMPs schemes could reach up to 5.9 times, 5.7 times, and 5.3 times due to the impact of CSAs identification ratio, scale and method, respectively. When other identification factors were the same, with the increase of pollutant reduction, the scenarios with a larger identification ratio, or using the Load Per Region Area Index (LPRAI) identification method, or in the hydrological response unit scale, tended to have lower economic cost and higher cost-effectiveness. The result of satisfaction level evualtion showed that higher environmental or economic satisfaction could be obtained from the identification criteria with the identification ratio of 20% and the identification scale of hydrological response unit, which could be priority selection criteria. This method can help decision makers select the BMPs schemes according to their preference and provide appropriate CSAs identification factors to optimize BMPs placement plans in watershed, improving the economic viability and pollutant reduction efficiency of NPSP.
Download or read book Applications of GIS to the Modeling of Non point Source Pollutants in the Vadose Zone written by Dennis L. Corwin and published by . This book was released on 1996 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Application of Advanced Information Technology in Assessing Environmental Impacts. Opportunities and Limitations of GIS-Based Modeling of Solute Transport at the Regional Scale. Geostatistics: Tools for Advanced Spatial Modeling in GIS. Stochastic Solute Transport Modeling Trends and Their Potential Compatibility with GIS. GIS Applications of Deterministic Solute Transport Models for Regional-Scale Assessment of Non- Point Source Pollutants in the Vadose Zone. The Influence of Transport Variability Structure on Parameter Estimation and Model Discrimination in Field Soils Uncertainty in Regional-Scale Assessments of Non-Point Source Pollutants Sensitivity Analysis for Regional-Scale Solute Transport Modeling GIS and Hydrologic Models of Non-Point Source Pollutants in Subsurface Water. Application of Soil Survey Attribute Data to GIS Pollution Assessment Models. Methods for Estimate Soil Hydraulic Parameters for Regional-Scale Applications of Mechanistic Models. Mapping the Areal Distribution of Soil Parameters with Geophysical Techniques. An Integrated Approach for Modeling Water Flow and Solute Transport in the Vadose Zone. Unsatchemgeo: Modeling Water Flow and Multicomponent Solute Transport in a GIS Context. Baseflow Mapping of the South-Central and Southeastern United States Using GIS. Application of GIS to the Modeling of Pesticide Leaching on a Regional Scale in the Netherlands. NLEAP/GIS Approach for Identifying and Mitigating Regional NO3-N Leaching. GIS Applications to the Basin-Scale Assessment of Soil Salinity and Salt Loading to Groundwater.
Download or read book GIS and Geocomputation for Water Resource Science and Engineering written by Barnali Dixon and published by John Wiley & Sons. This book was released on 2015-11-25 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: GIS and Geocomputation for Water Resource Science and Engineering not only provides a comprehensive introduction to the fundamentals of geographic information systems but also demonstrates how GIS and mathematical models can be integrated to develop spatial decision support systems to support water resources planning, management and engineering. The book uses a hands-on active learning approach to introduce fundamental concepts and numerous case-studies are provided to reinforce learning and demonstrate practical aspects. The benefits and challenges of using GIS in environmental and water resources fields are clearly tackled in this book, demonstrating how these technologies can be used to harness increasingly available digital data to develop spatially-oriented sustainable solutions. In addition to providing a strong grounding on fundamentals, the book also demonstrates how GIS can be combined with traditional physics-based and statistical models as well as information-theoretic tools like neural networks and fuzzy set theory.
Download or read book IAHS Publication written by and published by . This book was released on 1981 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts of Funded Research written by National Research Initiative Competitive Grants Program (United States. Cooperative State Research, Education, and Extension Service) and published by . This book was released on 1997 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Nonpoint Source Pollution Risk Assessment Classification written by Thomas Patrick Curley and published by . This book was released on 1995 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Systems Approach for River and River Basin Restoration written by Theodore Endreny and published by MDPI. This book was released on 2021-05-27 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communities increasingly find that the water quality, water levels, or some other resource indicator in their river basins do not meet their expectations. This discrepancy between the desired and actual state of the resource leads to efforts in river basin restoration. River basins are complex systems, and too often, restoration efforts are ineffective due to a lack of understanding of the purpose of the system, defined by the system structure and function. The river basin structure includes stocks (e.g., water level or quality), inflows (e.g., precipitation or fertilization), outflows (e.g., evaporation or runoff), and positive and negative feedback loops with delays in responsiveness, all of which function to change or stabilize the state of the system (e.g., the stock of interest, such as water level or quality). External drivers on this structure, together with goals and rules, contribute to how a river basin functions. This book reviews several new research projects to identify and rank the twelve most effective leverage points to address discrepancies between the desired and actual state of the river basin system. This book demonstrates that river basin restoration is most likely to succeed when we change paradigms rather than try to change the system elements, as the paradigm will establish the system goals, structure, rules, delays, and parameters.
