Wetland Model In An Earth Systems Modeling Framework For Regional Environmental Policy Analysis PDF Download
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Author | : Sirein Salah Awadalla |
Publisher | : |
Total Pages | : 141 |
Release | : 2011 |
Genre | : |
ISBN | : |
Download Wetland Model in an Earth Systems Modeling Framework for Regional Environmental Policy Analysis Book in PDF, ePub and Kindle
The objective of this research is to investigate incorporating a wetland component into a land energy and water fluxes model, the Community Land Model (CLM). CLM is the land fluxes component of the Integrated Global Systems Model (IGSM), a framework that simulates the relationship of physical systems to climate variations. Wetlands play an important role in the storage and regulation of the global water budget so including them in a land water cycle model is found to be necessary in balancing the regional water budgets of simulated river basins. This research focuses on modeling broad hydrological characteristics of wetlands (and lakes) into CLM. CLM's wetland component is reconstructed to reflect a more realistic wetland water budget; it allows for the exchange of water with CLM's river routing component; it allows for varying the storage of wetlands; it allows for calculating discharge from wetlands based on the physics of these ecosystems; and allows the surface water extent of wetlands to vary, a characteristic important to ecological behavior of wetlands and management of wetland ecosystems. The research then implements the modified version of the model for the Sudd wetland, in South Sudan, as it relates to its larger river system, the White Nile. Projects designed to better manage this wetland, such as diverting its inflow to reduce the amount of water consumed by evaporation, are currently under review by its various stakeholders. This diversion stands to change the area of the Sudd, which has direct implications on the ecological and social services derived from the wetland locally. The modified CLM is thus used to provide a better understanding of the science of this management option, and furthers the discussion on the benefits or drawbacks to diversion. Thus, using area as a proxy for environmental impact, what are the environmental, economic and social risks associated with diverting water from inflow into the Sudd? The new wetland component's performance is evaluated against existing observed and modeled data on Sudd hydrology and compared to existing models of the Sudd. The research finds that the potential benefits of diversion cannot be said to unequivocally better the larger system of the White Nile.
Author | : W.J. Mitsch |
Publisher | : Elsevier |
Total Pages | : 238 |
Release | : 2012-12-02 |
Genre | : Science |
ISBN | : 0444597697 |
Download Wetland Modelling Book in PDF, ePub and Kindle
The study of wetlands is a relatively new field and the modelling of these systems is still in its formative stages. Nevertheless, the editors felt compelled to assemble this volume as a first statement of the state of the art of modelling approaches for the quantitative study of wetlands. A global approach has been adopted in this book, not only by including a wide geographic distribution of wetlands, but also by including papers on both freshwater and saltwater wetlands. Wetlands are defined as systems intermediate between aquatic and terrestrial ecosystems, and include ecosystems under a wide range of hydrologic and ecologic conditions. The wetland types discussed in this book reflect that heterogeneity, ranging from intermittently flooded wet meadows to permanently flooded shallow reservoirs and lakes. Also included are modelling examples from coastal salt marshes, shallow estuaries, mesotrophic bogs, reedswamps, forested swamps, and regional wetlands. In summary, the book presents ecological modelling as a tool for management of these sensitive ecosystems, and for studying their structure and function. Each chapter has extensive references related to the modelling approach and wetland type discussed. It will be useful for wetland scientists and managers, and could also serve as a supplemental text on courses in wetland ecology.
Author | : Lawson M. Smith |
Publisher | : Washington : U.S. Army Corps of Engineers, Waterways Experiment Station 1995. |
Total Pages | : 160 |
Release | : 1995 |
Genre | : Ecosystem management |
ISBN | : |
Download Framework for Wetland Systems Management Book in PDF, ePub and Kindle
Author | : Jon A. Kusler |
Publisher | : |
Total Pages | : 500 |
Release | : 1989 |
Genre | : Environmental policy |
ISBN | : |
Download Wetland Creation and Restoration: Regional reviews Book in PDF, ePub and Kindle
Author | : Wei Ji |
Publisher | : CRC Press |
Total Pages | : 328 |
Release | : 2007-12-13 |
Genre | : Nature |
ISBN | : 1420064150 |
Download Wetland and Water Resource Modeling and Assessment Book in PDF, ePub and Kindle
As a wetland of international importance located in China, the Poyang Lake Basin's incredible topographical and biological diversity has provided a congregating point for scientists from around the world to engage in cross-disciplinary research. In particular, the International Conference on Poyang Lake Complex Environment System was instrumental i
Author | : Jan W Dash |
Publisher | : World Scientific |
Total Pages | : 1105 |
Release | : 2021-03-18 |
Genre | : Science |
ISBN | : 9811213933 |
Download World Scientific Encyclopedia Of Climate Change: Case Studies Of Climate Risk, Action, And Opportunity (In 3 Volumes) Book in PDF, ePub and Kindle
The Climate Change Encyclopedia responds to the outstanding risk, survival, and ethical issue of our time, requiring action and providing opportunity. Primary-source expert authors write in a unique case-study structure that enables the Encyclopedia to be approachable, informational, and motivational for the public. The key focus areas are Climate Change and Finance, Economics, and Policy, with many other related climate categories included. The over 100 case studies provide realistic and interesting views of climate change, based on authors' published papers, reports, and books, plus climate-related activities of organizations, and selected topics. This inspiring work can enhance optimism and courage to act urgently and persistently on climate change, with foresight for a livable future.For more information on the list of contributors, please refer to https://www.worldscientific.com/page/encyclopedia-of-climate-change.Related Link(s)
Author | : Ling Peng Xiao |
Publisher | : |
Total Pages | : 114 |
Release | : 2015 |
Genre | : |
ISBN | : |
Download Development of A Hybrid Fuzzy-Stochastic Modeling Approach for Examining the Environmental Performance of Surface Flow Constructed Wetland Book in PDF, ePub and Kindle
Storm water is considered as a significant source of contaminants to receiving rivers and the constructed wetland has been used to treat storm water before the discharge. In this study, a hybrid fuzzy-stochastic modeling approach is developed to examine the wetland treatment efficiency, to analyze the environmental impact associated with the wetland effluents into the receiving water, and to quantify system uncertainties. The proposed approach first incorporates a water quality model to simulate storm water flow going through the wetland and the fate and transport of nutrients in the wetland. A Monte Carlo modeling method is next developed to extend the water quality model, providing a stochastic simulation of the concentration distribution of nutrients in the wetland effluents. It is intended for the analysis of probabilistic environmental risks associated with wetland effluents on the receiving waters. The fuzzy membership functions are further used to quantify the variability or suitability of regional surface water guidelines, which is incorporated into the Monte Carlo modeling framework to identify the integrated risks from the discharge on the river. The developed modeling approach has been applied to the Kennedale wetland, a storm water treatment system, in the city of Edmonton, Canada. Before the environmental risk assessment, the HEC-RAS (Hydrologic Engineering Centers River Analysis System) model and the QUAL2K (River and Stream Water Quality) model are applied to simulate the flow and nutrients removal efficiency in the wetland. According to the simulation results from the HEC-RAS model and the QUAL2K model, the removal efficiencies of TN (Total Nitrogen) by the wetland are 25.64% and 13.59%, respectively. The removal efficiencies of TP (Total Phosphorus) are 50% and 50.91%, respectively. The differences between the HEC-RAS simulation results and on-site field data are 0.05% for TN and 6.1% for TP. The differences between the QUAL2K simulation results and on-site field data are 13.99% for TN and 4.35% for TP based on this study. The water quality simulation results from the two models are both acceptable compared to the monitoring data. It is seen that the HEC-RAS model has better performance on modeling this field case, and is integrated with the environmental risk assessment process. Consequently, the results of the integrated risk assessment referring to different guidelines in the North America show that the concentrations of TN at the wetland discharge port have a high possibility of violating the TN guidelines in both Alberta, Canada and the US EPA (Environmental Protection Agency). Similarly, the concentrations of TP at the wetland discharge port have a high possibility to violate the Canadian and US TP guideline during this study period. Therefore, the nutrients in storm water discharges from the Kennedale wetland may have a great risk to adversely affect the receiving river (North Saskatchewan River) at the time of this study. The analysis results of nutrient guidelines have supported the management of decision making process, and the study results indicate that the developed hybrid fuzzy-stochastic modeling approach is a useful tool for the practical managing of wetland systems and the impact of the wetland discharges on the receiving waters.
Author | : Chiara Piroddi |
Publisher | : Frontiers Media SA |
Total Pages | : 503 |
Release | : 2022-02-10 |
Genre | : Science |
ISBN | : 2889743152 |
Download Using Ecological Models to Support and Shape Environmental Policy Decisions Book in PDF, ePub and Kindle
Author | : Ralph W. Tiner |
Publisher | : CRC Press |
Total Pages | : 574 |
Release | : 2015-03-23 |
Genre | : Science |
ISBN | : 1482237385 |
Download Remote Sensing of Wetlands Book in PDF, ePub and Kindle
Effectively Manage Wetland Resources Using the Best Available Remote Sensing TechniquesUtilizing top scientists in the wetland classification and mapping field, Remote Sensing of Wetlands: Applications and Advances covers the rapidly changing landscape of wetlands and describes the latest advances in remote sensing that have taken place over the pa
Author | : Stefan Ignar |
Publisher | : Springer |
Total Pages | : 0 |
Release | : 2015-01-26 |
Genre | : Science |
ISBN | : 9783319137636 |
Download Wetlands and Water Framework Directive Book in PDF, ePub and Kindle
This book compares the lessons learned from a wetland-perspective approach to the changing climate and the requirements of the Water Framework Directive (WFD) with regard to environmental conservation. Examples from Germany and Poland are discussed due to the efficiency of their respective implementations of water conservation policies. Although the general scientific interest in specific issues such as wetlands, climate change, nature conservation and the WFD enjoy a well established position in international environmental research, these four elements are rarely considered together due to the complexity of the processes, biased scenarios of global change and subjective policy background. Major challenges involved in carrying out environmental conservation actions that assess the potential impacts of climate change and management plans on water bodies are identified. The results of this approach are addressed to practitioners in the field of adaptive management in a wetlands context.